version 2.2

changelog.txt

@@ -0,0 +1,28 @@
+FiveFilters.org: Full-Text RSS
+http://fivefilters.org/content-only/
+CHANGELOG
+------------------------------------
+
+2.2 (2010-10-30)
+ - Character-encoding detection improved (minor change)
+ - Rewriting of relative URLs improved (tracks redirect URLs)
+ - Minor changes to prevent errors in certain hosting environments
+ - Compatibility test file updated with more tests
+
+2.1 (2010-09-13)
+ - Better content extraction (using PHP Readability 1.7.1)
+ - Parallel HTTP requests (using Humble HTTP Agent)
+ - Auto loading of necessary classes
+ - Rewriting of relative URLs (using IRI)
+ - Added compatibility test file (to check if server meets requirements)
+ - Character-encoding support improved (using SimplePie)
+
+1.5 (2010-05-30)
+ - Support for PHP 5.3 (thanks Murilo!)
+ - Character-encoding support improved (favours iconv over mb_convert_encoding)
+
+1.0 (2010-03-05)
+ - Better support for different character-encodings
+ - Auto-cleanup of cache files
+ - Very basic option for load distribution (if you're planning on installing the code on multiple servers)
+ - Separate config file (see config-sample.php) 

config-sample.php

@@ -0,0 +1,130 @@
+<?php
+/* Full-Text RSS options */
+
+// Enable service
+// ----------------------
+// Set this to false if you want to disable the service.
+// If set to false, no feed is produced and users will 
+// be told that the service is disabled.
+$options->enabled = true;
+
+// Restrict service
+// ----------------------
+// Set this to true if you'd like certain features
+// to be available only to key holders.
+// Affected features:
+// * Link handling (disabled for non-key holders if set to true)
+// * Cache time (20 minutes for non-key holders if set to true)
+$options->restrict = false;
+
+// Default entries (without API key)
+// ----------------------
+// The number of feed items to process when no API key is supplied.
+$options->default_entries = 5;
+
+// Max entries (without API key)
+// ----------------------
+// The maximum number of feed items to process when no API key is supplied.
+$options->max_entries = 10;
+
+// Rewrite relative URLs
+// ----------------------
+// With this enabled relative URLs found in the extracted content
+// block are automatically rewritten as absolute URLs.
+// Set to false if you want to preserve relative URLs appearing in 
+// the extracted content block.
+$options->rewrite_relative_urls = true;
+
+// Enable caching
+// ----------------------
+// Enable this if you'd like to cache results
+// for 10 minutes. Initially it's best
+// to keep this disabled to make sure everything works
+// as expected.
+$options->caching = false;
+
+// Cache directory
+// ----------------------
+// Only used if caching is true
+$options->cache_dir = dirname(__FILE__).'/cache';
+
+// Message to prepend (without API key)
+// ----------------------
+// HTML to insert at the beginning of each feed item when no API key is supplied.
+$options->message_to_prepend = '';
+
+// Message to append (without API key)
+// ----------------------
+// HTML to insert at the end of each feed item when no API key is supplied.
+$options->message_to_append = '';
+
+// URLs to block
+// ----------------------
+// List of URLs (or parts of a URL) which the service should not accept
+$options->blocked_urls = array();
+
+// Error message when content extraction fails (without API key)
+// ----------------------
+$options->error_message = '[unable to retrieve full-text content]';
+
+/////////////////////////////////////////////////
+/// ADVANCED OPTIONS ////////////////////////////
+/////////////////////////////////////////////////
+
+// API keys
+// ----------------------
+// NOTE: You do not need an API key from fivefilters.org to run your own 
+// copy of the code. This is here if you'd like to offer others an API key 
+// to access _your_ copy.
+// Keys let you group users - those with a key and those without - and
+// restrict access to the service to those without a key.
+// If you want everyone to access the service in the same way, you can
+// leave the array below empty and ignore the API key options further down.
+// The options further down in this file will allow you to specify
+// how the service should behave in each mode.
+$options->api_keys = array();
+
+// Default entries (with API key)
+// ----------------------
+// The number of feed items to process when a valid API key is supplied.
+$options->default_entries_with_key = 5;
+
+// Max entries (with API key)
+// ----------------------
+// The maximum number of feed items to process when a valid API key is supplied.
+$options->max_entries_with_key = 10;
+
+// Message to prepend (with API key)
+// ----------------------
+// HTML to insert at the beginning of each feed item when a valid API key is supplied.
+$options->message_to_prepend_with_key = '';
+
+// Message to append (with API key)
+// ----------------------
+// HTML to insert at the end of each feed item when a valid API key is supplied.
+$options->message_to_append_with_key = '';
+
+// Error message when content extraction fails (with API key)
+// ----------------------
+$options->error_message_with_key = '[unable to retrieve full-text content]';
+
+// Alternative Full-Text RSS service URL
+// ----------------------
+// This option is to offer very simple load distribution for the service.
+// If you've set up another instance of the Full-Text RSS service on a different
+// server, you can enter its full URL here. 
+// E.g. 'http://my-other-server.org/full-text-rss/makefulltextfeed.php'
+// If you specify a URL here, 50% of the requests to makefulltextfeed.php on
+// this server will be redirected to the URL specified here.
+$options->alternative_url = '';
+
+// Cache directory level
+// ----------------------
+// Spread cache files over different directories (only used if caching is enabled).
+// Used to prevent large number of files in one directory.
+// This corresponds to Zend_Cache's hashed_directory_level
+// see http://framework.zend.com/manual/en/zend.cache.backends.html
+// It's best not to change this if you're unsure.
+$options->cache_directory_level = 0;
+
+?>

css/niceforms-default.css

@@ -0,0 +1,92 @@
+/*Defaults Styling*/
+body {font:12px/17px Arial, Helvetica, sans-serif; color:#333; background:#ccc; padding:40px 20px 20px 20px;}
+fieldset {background:#f2f2e6; padding:10px; border:1px solid #fff; border-color:#fff #666661 #666661 #fff; margin-bottom:36px; width:600px;}
+input, textarea, select {font:12px/12px Arial, Helvetica, sans-serif; padding:0;}
+fieldset.action {background:#9da2a6; border-color:#e5e5e5 #797c80 #797c80 #e5e5e5; margin-top:-20px;}
+legend {background:#bfbf30; color:#fff; font:17px/21px Calibri, Arial, Helvetica, sans-serif; padding:0 10px; margin:-26px 0 0 -11px; font-weight:bold; border:1px solid #fff; border-color:#e5e5c3 #505014 #505014 #e5e5c3;}
+label {font-size:11px; font-weight:bold; color:#666;}
+label.opt {font-weight:normal;}
+dl {clear:both;}
+dt {float:left; text-align:right; width:90px; line-height:25px; margin:0 10px 10px 0;}
+dd {float:left; width:475px; line-height:25px; margin:0 0 10px 0;}
+#footer {font-size:11px;}
+
+#container {width:700px; margin:0 auto;}
+
+/*##########################################
+Script: Niceforms 2.0
+Theme: StandardBlue
+Author: Lucian Slatineanu
+URL: http://www.emblematiq.com/
+##########################################*/
+
+/*Text inputs*/
+.NFText {border:none; vertical-align:middle; font:12px/15px Arial, Helvetica, sans-serif; background:none;}
+.NFTextCenter {height:15px; background:url(../images/niceforms/input.png) repeat-x 0 0; padding:3px 0; margin:0; float:left; line-height:15px;}
+.NFTextLeft, .NFTextRight {width:7px; height:21px; vertical-align:middle; float:left;}
+.NFTextLeft {background:url(../images/niceforms/input-left.png) no-repeat 0 0;}
+.NFTextRight {background:url(../images/niceforms/input-right.png) no-repeat 0 0;}
+/*Radio*/
+.NFRadio {cursor:pointer; position:absolute; display:block; width:13px; height:13px; border:1px solid transparent; background:url(../images/niceforms/radio.png) no-repeat 0 0; z-index:2;}
+/*Checkbox*/
+.NFCheck {cursor:pointer; position:absolute; width:12px; height:12px; border:1px solid transparent; background:url(../images/niceforms/checkbox.png) no-repeat 0 0; z-index:2;}
+/*Buttons*/
+.NFButton {width:auto; height:26px; color:#fff; padding:0 2px; background:url(../images/niceforms/button.png) repeat-x 0 0; cursor:pointer; border:none; font:10px/26px Tahoma, Arial, Helvetica, sans-serif; font-weight:bold; text-transform:uppercase; letter-spacing:1px; vertical-align:middle;}
+.NFButtonLeft, .NFButtonRight {width:6px; height:26px; vertical-align:middle;}
+.NFButtonLeft {background:url(../images/niceforms/button-left.png) no-repeat 0 0;}
+.NFButtonRight {background:url(../images/niceforms/button-right.png) no-repeat 0 0;}
+/*Textareas*/
+.NFTextarea {border:none; background:none; font:12px/12px Arial, Helvetica, sans-serif; margin:0;}
+.NFTextareaTop, .NFTextareaBottom {height:5px; clear:both; float:none; padding-right:10px;}
+.NFTextareaTop {background:url(../images/niceforms/textarea-tr.png) no-repeat 100% 0;}
+.NFTextareaBottom {background:url(../images/niceforms/textarea-br.png) no-repeat 100% 0; margin-bottom:5px;}
+.NFTextareaTopLeft, .NFTextareaBottomLeft {width:5px; height:5px;}
+.NFTextareaTopLeft {background:#f2f2e6 url(../images/niceforms/textarea-tl.png) no-repeat 0 0;}
+.NFTextareaBottomLeft {background:#f2f2e6 url(../images/niceforms/textarea-bl.png) no-repeat 0 0;}
+.NFTextareaLeft, .NFTextareaRight, .NFTextareaLeftH, .NFTextareaRightH {float:left; padding-bottom:5px;}
+.NFTextareaLeft, .NFTextareaLeftH {width:5px;}
+.NFTextareaLeft {background:url(../images/niceforms/textarea-l-off.png) repeat-y 0 0;}
+.NFTextareaLeftH {background:url(../images/niceforms/textarea-l-over.png) repeat-y 0 0;}
+.NFTextareaRight, .NFTextareaRightH {padding-right:5px; padding-bottom:0;}
+.NFTextareaRight {background:url(../images/niceforms/textarea-r-off.png) repeat-y 100% 0;}
+.NFTextareaRightH {background:url(../images/niceforms/textarea-r-over.png) repeat-y 100% 100%;}
+/*Files*/
+.NFFileButton {padding-bottom:0; vertical-align:bottom; cursor:pointer; background:url(../images/niceforms/file.png) no-repeat 0 0; width:60px; height:21px;}
+.NFFile {position:relative; margin-bottom:5px;}
+.NFFile input.NFhidden {position:relative; filter:alpha(opacity=0); opacity:0; z-index:2; cursor:pointer; text-align:left;}
+.NFFileNew {position:absolute; top:0px; left:0px; z-index:1;}
+/*Selects*/
+.NFSelect {height:21px; position:absolute; border:1px solid transparent;}
+.NFSelectLeft {float:left; width:3px; height:21px; background:url(../images/niceforms/select-left.png) no-repeat 0 0; vertical-align:middle;}
+.NFSelectRight {height:21px; width:auto; background:url(../images/niceforms/select-right.png) no-repeat 100% 0; cursor:pointer; font:12px/21px Arial, Helvetica, sans-serif; color:#fff; padding-left:3px; margin-left:3px;}
+.NFSelectTarget {position:absolute; background:none; margin-left:-13px; margin-top:18px; z-index:3; left:0; top:0; padding-bottom:13px;}
+.NFSelectOptions {position:relative; background:#707175; margin-left:16px; margin-top:0; list-style:none; padding:4px 0; color:#fff; font:11px/13px Arial, Helvetica, sans-serif; z-index:4; max-height:200px; overflow-y:auto; overflow-x:hidden; left:0; top:0;}
+.NFSelectOptions li {padding-bottom:1px;}
+.NFSelectOptions a {display:block; text-decoration:none; color:#fff; padding:2px 3px; background:none;}
+.NFSelectOptions a.NFOptionActive {background:#464646;}
+.NFSelectOptions a:hover {background:#333;}
+/*Multiple Selects*/
+.NFMultiSelect {border:0; background:none; margin:0;}
+.NFMultiSelectTop, .NFMultiSelectBottom {height:5px; clear:both; float:none; padding-right:10px;}
+.NFMultiSelectTop {background:url(../images/niceforms/textarea-tr.png) no-repeat 100% 0;}
+.NFMultiSelectBottom {background:url(../images/niceforms/textarea-br.png) no-repeat 100% 0; margin-bottom:5px;}
+.NFMultiSelectTopLeft, .NFMultiSelectBottomLeft {width:5px; height:5px;}
+.NFMultiSelectTopLeft {background:#f2f2e6 url(../images/niceforms/textarea-tl.png) no-repeat 0 0;}
+.NFMultiSelectBottomLeft {background:#f2f2e6 url(../images/niceforms/textarea-bl.png) no-repeat 0 0;}
+.NFMultiSelectLeft, .NFMultiSelectRight, .NFMultiSelectLeftH, .NFMultiSelectRightH {float:left; padding-bottom:5px;}
+.NFMultiSelectLeft, .NFMultiSelectLeftH {width:5px;}
+.NFMultiSelectLeft {background:url(../images/niceforms/textarea-l-off.png) repeat-y 0 0;}
+.NFMultiSelectLeftH {background:url(../images/niceforms/textarea-l-over.png) repeat-y 0 0;}
+.NFMultiSelectRight, .NFMultiSelectRightH {padding-right:5px; padding-bottom:0;}
+.NFMultiSelectRight {background:url(../images/niceforms/textarea-r-off.png) repeat-y 100% 0;}
+.NFMultiSelectRightH {background:url(../images/niceforms/textarea-r-over.png) repeat-y 100% 0;}
+
+/*Focused*/
+.NFfocused {border:1px dotted #666;}
+/*Hovered*/
+.NFh {background-position:0 100%;}
+.NFhr {background-position:100% 100%;}
+/*Hidden*/
+.NFhidden {opacity:0; z-index:-1; position:relative;}
+/*Safari*/
+select, input, textarea, button {outline:none; resize:none;}

ftr_compatibility_test.php

@@ -0,0 +1,362 @@
+<?php
+/*
+FULL-TEXT-RSS V2 COMPATIBILITY TEST
+
+1) Upload ftr_compatibility_test.php to the web-accessible root of your website.
+For example, if your website is www.example.com, upload it so that you can get
+to it at www.example.com/ftr_compatibility_test.php
+
+2) Open your web browser and go to the page you just uploaded.
+
+Note: This compatibility test has been borrowed (and slightly adapted) from the one supplied by 
+SimplePie.org. We have kept most of their checks intact as we use SimplePie in our application.
+http://github.com/simplepie/simplepie/tree/master/compatibility_test/
+*/
+
+$app_name = 'Full-Text RSS v2';
+
+// test redirect
+$url = parse_url('http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);
+$redirect_url = 'http://'.$url['host'].$url['path'].'?redirect=true';
+if (isset($_GET['redirect'])) {
+	$url = parse_url('http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);
+	$url = 'http://'.$url['host'].$url['path'].'?redirected=true';
+	header('Location: '.$url);
+	exit;
+}
+if (isset($_GET['redirected'])) {
+	die('Redirect works');
+}
+
+$php_ok = (function_exists('version_compare') && version_compare(phpversion(), '5.2.0', '>='));
+$pcre_ok = extension_loaded('pcre');
+$zlib_ok = extension_loaded('zlib');
+$mbstring_ok = extension_loaded('mbstring');
+$iconv_ok = extension_loaded('iconv');
+$tidy_ok = function_exists('tidy_parse_string');
+$curl_ok = function_exists('curl_exec');
+$http_ok = (extension_loaded('http') && class_exists('HttpRequestPool'));
+$allow_url_fopen_ok = (bool)ini_get('allow_url_fopen');
+$redirect_ok = ($allow_url_fopen_ok && file_get_contents($redirect_url) == 'Redirect works');
+
+if (extension_loaded('xmlreader')) {
+	$xml_ok = true;
+} elseif (extension_loaded('xml')) {
+	$parser_check = xml_parser_create();
+	xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
+	xml_parser_free($parser_check);
+	$xml_ok = isset($values[0]['value']);
+} else {
+	$xml_ok = false;
+}
+
+header('Content-type: text/html; charset=UTF-8');
+
+?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
+
+<html lang="en">
+<head>
+<title><?php echo $app_name; ?>: Server Compatibility Test</title>
+
+<style type="text/css">
+body {
+	font:14px/1.4em "Lucida Grande", Verdana, Arial, Helvetica, Clean, Sans, sans-serif;
+	letter-spacing:0px;
+	color:#333;
+	margin:0;
+	padding:0;
+	background:#fff;
+}
+
+div#site {
+	width:550px;
+	margin:20px auto 0 auto;
+}
+
+a {
+	color:#000;
+	text-decoration:underline;
+	padding:0 1px;
+}
+
+a:hover {
+	color:#fff;
+	background-color:#333;
+	text-decoration:none;
+	padding:0 1px;
+}
+
+p {
+	margin:0;
+	padding:5px 0;
+}
+
+em {
+	font-style:normal;
+	background-color:#ffc;
+	padding: 0.1em 0;
+}
+
+ul, ol {
+	margin:10px 0 10px 20px;
+	padding:0 0 0 15px;
+}
+
+ul li, ol li {
+	margin:0 0 7px 0;
+	padding:0 0 0 3px;
+}
+
+h2 {
+	font-size:18px;
+	padding:0;
+	margin:30px 0 20px 0;
+}
+
+h3 {
+	font-size:16px;
+	padding:0;
+	margin:20px 0 5px 0;
+}
+
+h4 {
+	font-size:14px;
+	padding:0;
+	margin:15px 0 5px 0;
+}
+
+code {
+	font-size:1.1em;
+	background-color:#f3f3ff;
+	color:#000;
+}
+
+em strong {
+    text-transform: uppercase;
+}
+
+table#chart {
+	border-collapse:collapse;
+}
+
+table#chart th {
+	background-color:#eee;
+	padding:2px 3px;
+	border:1px solid #fff;
+}
+
+table#chart td {
+	text-align:center;
+	padding:2px 3px;
+	border:1px solid #eee;
+}
+
+table#chart tr.enabled td {
+	/* Leave this alone */
+}
+
+table#chart tr.disabled td, 
+table#chart tr.disabled td a {
+	color:#999;
+	font-style:italic;
+}
+
+table#chart tr.disabled td a {
+	text-decoration:underline;
+}
+
+div.chunk {
+	margin:20px 0 0 0;
+	padding:0 0 10px 0;
+	border-bottom:1px solid #ccc;
+}
+
+.footnote,
+.footnote a {
+	font:10px/12px verdana, sans-serif;
+	color:#aaa;
+}
+
+.footnote em {
+	background-color:transparent;
+	font-style:italic;
+}
+</style>
+
+</head>
+
+<body>
+
+<div id="site">
+	<div id="content">
+
+		<div class="chunk">
+			<h2 style="text-align:center;"><?php echo $app_name; ?>: Compatibility Test</h2>
+			<table cellpadding="0" cellspacing="0" border="0" width="100%" id="chart">
+				<thead>
+					<tr>
+						<th>Test</th>
+						<th>Should Be</th>
+						<th>What You Have</th>
+					</tr>
+				</thead>
+				<tbody>
+					<tr class="<?php echo ($php_ok) ? 'enabled' : 'disabled'; ?>">
+						<td>PHP</td>
+						<td>5.2.0 or higher</td>
+						<td><?php echo phpversion(); ?></td>
+					</tr>
+					<tr class="<?php echo ($xml_ok) ? 'enabled, and sane' : 'disabled, or broken'; ?>">
+						<td><a href="http://php.net/xml">XML</a></td>
+						<td>Enabled</td>
+						<td><?php echo ($xml_ok) ? 'Enabled, and sane' : 'Disabled, or broken'; ?></td>
+					</tr>
+					<tr class="<?php echo ($pcre_ok) ? 'enabled' : 'disabled'; ?>">
+						<td><a href="http://php.net/pcre">PCRE</a></td>
+						<td>Enabled</td>
+						<td><?php echo ($pcre_ok) ? 'Enabled' : 'Disabled'; ?></td>
+					</tr>
+					<tr class="<?php echo ($zlib_ok) ? 'enabled' : 'disabled'; ?>">
+						<td><a href="http://php.net/zlib">Zlib</a></td>
+						<td>Enabled</td>
+						<td><?php echo ($zlib_ok) ? 'Enabled' : 'Disabled'; ?></td>
+					</tr>
+					<tr class="<?php echo ($mbstring_ok) ? 'enabled' : 'disabled'; ?>">
+						<td><a href="http://php.net/mbstring">mbstring</a></td>
+						<td>Enabled</td>
+						<td><?php echo ($mbstring_ok) ? 'Enabled' : 'Disabled'; ?></td>
+					</tr>
+					<tr class="<?php echo ($iconv_ok) ? 'enabled' : 'disabled'; ?>">
+						<td><a href="http://php.net/iconv">iconv</a></td>
+						<td>Enabled</td>
+						<td><?php echo ($iconv_ok) ? 'Enabled' : 'Disabled'; ?></td>
+					</tr>
+					<tr class="<?php echo ($tidy_ok) ? 'enabled' : 'disabled'; ?>">
+						<td><a href="http://php.net/tidy">Tidy</a></td>
+						<td>Enabled</td>
+						<td><?php echo ($tidy_ok) ? 'Enabled' : 'Disabled'; ?></td>
+					</tr>
+					<tr class="<?php echo ($curl_ok) ? 'enabled' : 'disabled'; ?>">
+						<td><a href="http://php.net/curl">cURL</a></td>
+						<td>Enabled</td>
+						<td><?php echo (extension_loaded('curl')) ? 'Enabled' : 'Disabled'; ?></td>
+					</tr>
+					<tr class="<?php echo ($http_ok) ? 'enabled' : 'disabled'; ?>">
+						<td><a href="http://php.net/HttpRequestPool">HttpRequestPool</a></td>
+						<td>Enabled</td>
+						<td><?php echo ($http_ok) ? 'Enabled' : 'Disabled'; ?></td>
+					</tr>
+					<tr class="<?php echo ($allow_url_fopen_ok) ? 'enabled' : 'disabled'; ?>">
+						<td><a href="http://www.php.net/manual/en/filesystem.configuration.php#ini.allow-url-fopen">allow_url_fopen</a></td>
+						<td>Enabled</td>
+						<td><?php echo ($allow_url_fopen_ok) ? 'Enabled' : 'Disabled'; ?></td>
+					</tr>						
+					<tr class="<?php echo ($redirect_ok) ? 'enabled' : 'disabled'; ?>">
+						<td>HTTP Redirects</td>
+						<td>Enabled</td>
+						<td><?php echo ($redirect_ok) ? 'Enabled' : 'Disabled'; ?></td>
+					</tr>	
+				</tbody>
+			</table>
+		</div>
+
+		<div class="chunk">
+			<h3>What does this mean?</h3>
+			<ol>
+				<?php if ($php_ok && $xml_ok && $pcre_ok && $mbstring_ok && $iconv_ok && $zlib_ok && $tidy_ok && $curl_ok && $http_ok && $allow_url_fopen_ok && $redirect_ok): ?>
+				<li><em>You have everything you need to run <?php echo $app_name; ?> properly!  Congratulations!</em></li>
+				<?php else: ?>
+					<?php if ($php_ok): ?>
+						<li><strong>PHP:</strong> You are running a supported version of PHP.  <em>No problems here.</em></li>
+						<?php if ($xml_ok): ?>
+							<li><strong>XML:</strong> You have XMLReader support or a version of XML support that isn't broken installed.  <em>No problems here.</em></li>
+							<?php if ($pcre_ok): ?>
+								<li><strong>PCRE:</strong> You have PCRE support installed. <em>No problems here.</em></li>
+								
+								<?php if ($allow_url_fopen_ok): ?>
+									<li><strong>allow_url_fopen:</strong> You have allow_url_fopen enabled. <em>No problems here.</em></li>								
+	
+									<?php if ($zlib_ok): ?>
+										<li><strong>Zlib:</strong> You have <code>Zlib</code> enabled.  This allows SimplePie to support GZIP-encoded feeds.  <em>No problems here.</em></li>
+									<?php else: ?>
+										<li><strong>Zlib:</strong> The <code>Zlib</code> extension is not available.  SimplePie will ignore any GZIP-encoding, and instead handle feeds as uncompressed text.</li>
+									<?php endif; ?>
+		
+									<?php if ($mbstring_ok && $iconv_ok): ?>
+										<li><strong>mbstring and iconv:</strong> You have both <code>mbstring</code> and <code>iconv</code> installed!  This will allow <?php echo $app_name; ?> to handle the greatest number of languages. <em>No problems here.</em></li>
+									<?php elseif ($mbstring_ok): ?>
+										<li><strong>mbstring:</strong> <code>mbstring</code> is installed, but <code>iconv</code> is not.</li>
+									<?php elseif ($iconv_ok): ?>
+										<li><strong>iconv:</strong> <code>iconv</code> is installed, but <code>mbstring</code> is not.</li>
+									<?php else: ?>
+										<li><strong>mbstring and iconv:</strong> <em>You do not have either of the extensions installed.</em> This will significantly impair your ability to read non-English feeds, as well as even some English ones.</li>
+									<?php endif; ?>
+
+									<?php if ($tidy_ok): ?>
+										<li><strong>Tidy:</strong> You have <code>Tidy</code> support installed.  <em>No problems here.</em></li>
+									<?php else: ?>
+										<li><strong>Tidy:</strong> The <code>Tidy</code> extension is not available.  <?php echo $app_name; ?> should still work with most feeds, but you may experience problems with some.</li>
+									<?php endif; ?>
+									
+									<?php if ($curl_ok): ?>
+										<li><strong>cURL:</strong> You have <code>cURL</code> support installed.  <em>No problems here.</em></li>
+									<?php else: ?>
+										<li><strong>cURL:</strong> The <code>cURL</code> extension is not available.  SimplePie will use <code>fsockopen()</code> instead.</li>
+									<?php endif; ?>
+		
+									<?php if ($http_ok): ?>
+										<li><strong>HttpRequestPool:</strong> You have <code>HttpRequestPool</code> support installed.  <em>No problems here.</em></li>
+									<?php else: ?>
+										<li><strong>HttpRequestPool:</strong> The <code>HttpRequestPool</code> class is not available.  <?php echo $app_name; ?> will use <code>file_get_contents()</code> instead to fetch URLs sequentially rather than in parallel.</li>
+									<?php endif; ?>
+									
+									<?php if ($redirect_ok): ?>
+										<li><strong>HTTP Redirects:</strong> Your server appears to handle redirects ok. <em>No problems here.</em></li>
+									<?php else: ?>
+										<li><strong>HTTP Redirects:</strong> Your server appears not to be able to handle HTTP redirects. <?php echo $app_name; ?> should still work with most feeds, but you may experience problems with some.</li>
+									<?php endif; ?>	
+
+								<?php else: ?>
+									<li><strong>allow_url_fopen:</strong> Your PHP configuration has allow_url_fopen disabled.  <em><?php echo $app_name; ?> will not work here.</em></li>
+								<?php endif; ?>
+									
+							<?php else: ?>
+								<li><strong>PCRE:</strong> Your PHP installation doesn't support Perl-Compatible Regular Expressions.  <em><?php echo $app_name; ?> will not work here.</em></li>
+							<?php endif; ?>
+						<?php else: ?>
+							<li><strong>XML:</strong> Your PHP installation doesn't support XML parsing.  <em><?php echo $app_name; ?> will not work here.</em></li>
+						<?php endif; ?>
+					<?php else: ?>
+						<li><strong>PHP:</strong> You are running an unsupported version of PHP.  <em><?php echo $app_name; ?> will not work here.</em></li>
+					<?php endif; ?>
+				<?php endif; ?>
+			</ol>
+		</div>
+
+		<div class="chunk">
+			<?php if ($php_ok && $xml_ok && $pcre_ok && $mbstring_ok && $iconv_ok && $allow_url_fopen_ok) { ?>
+				<h3>Bottom Line: Yes, you can!</h3>
+				<p><em>Your webhost has its act together!</em></p>
+				<p>You can download the latest version of <?php echo $app_name; ?> from <a href="http://fivefilters.org/content-only/#download">FiveFilters.org</a>.</p>
+				<p><strong>Note</strong>: Passing this test does not guarantee that <?php echo $app_name; ?> will run on your webhost &mdash; it only ensures that the basic requirements have been addressed. If you experience any problems, please let us know.</p>
+			<?php } else if ($php_ok && $xml_ok && $pcre_ok && $allow_url_fopen_ok) { ?>
+				<h3>Bottom Line: Yes, you can!</h3>
+				<p><em>For most feeds, it'll run with no problems.</em> There are certain languages that you might have a hard time with though.</p>
+				<p>You can download the latest version of <?php echo $app_name; ?> from <a href="http://fivefilters.org/content-only/#download">FiveFilters.org</a>.</p>
+				<p><strong>Note</strong>: Passing this test does not guarantee that <?php echo $app_name; ?> will run on your webhost &mdash; it only ensures that the basic requirements have been addressed. If you experience any problems, please let us know.</p>
+			<?php } else { ?>
+				<h3>Bottom Line: We're sorry…</h3>
+				<p><em>Your webhost does not support the minimum requirements for <?php echo $app_name; ?>.</em>  It may be a good idea to contact your webhost, and ask them to install a more recent version of PHP as well as the <code>xmlreader</code>, <code>xml</code>, <code>mbstring</code>, <code>iconv</code>, <code>curl</code>, and <code>zlib</code> extensions. And ask them to enable allow_url_fopen.</p>
+			<?php } ?>
+		</div>
+
+		<div class="chunk">
+			<p class="footnote">This compatibility test has been borrowed (and slightly adapted) from the one supplied by <a href="http://simplepie.org/">SimplePie.org</a>. We have kept most of their checks intact as we use SimplePie in our application.</a></p>
+		</div>
+
+	</div>
+
+</div>
+
+</body>
+</html>

index.html

@@ -0,0 +1,144 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
+    <title>Full-Text RSS Feeds | from fivefilters.org</title>
+	<script type="text/javascript" src="niceforms.js"></script>	
+	<link rel="stylesheet" href="css/niceforms-default.css" type="text/css" media="screen" />
+	<script type="text/javascript" src="js/niceforms.js"></script>
+	<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
+	<script type="text/javascript">
+	var baseUrl = 'http://'+window.location.host+window.location.pathname.replace(/(\/index\.html|\/)$/, '');
+	</script>
+  </head>
+  <body style="background-color: #eee; margin: 0; line-height: 1.4em;">
+	<div id="container">
+	<h1 style="padding-bottom: 30px;">Create Full-Text Feeds <span style="font-size: .7em; font-weight: normal;">&mdash; from <a href="http://fivefilters.org">FiveFilters.org</a></span></h1>
+    <form method="get" action="makefulltextfeed.php" id="form" class="niceform">
+	<fieldset>
+		<legend>Create full-text feed from webpage or feed URL</legend>
+		<dl>
+			<dt><label for="url">Enter URL:</label></dt>
+			<dd><input type="text" id="url" name="url" style="width: 450px" /></dd>
+		</dl>
+	</fieldset>
+	<fieldset>
+	<legend>Options</legend>
+	<!-- Remove the comments below to include API key field -->
+	<!--
+	<dl>
+		<dt><label for="key">API key:</label></dt>
+		<dd><input type="text" id="key" name="key" /></dd>
+	</dl>
+	-->
+	<dl>
+		<dt><label for="max">Max items:</label></dt>
+		<dd><select name="max" id="max">
+							<option value="1">1</option>
+							<option value="2">2</option>
+							<option value="3">3</option>
+							<option value="4">4</option>
+							<option value="5" selected="selected">5</option>
+							<option value="6">6</option>
+							<option value="7">7</option>
+							<option value="8">8</option>
+							<option value="9">9</option>
+							<option value="10">10</option>
+							</select></dd>
+	</dl>
+	<dl>
+		<dt><label for="links">Links</label></dt>
+		<dd><select name="links">
+			<option value="preserve" selected="selected">preserve</option>
+			<option value="footnotes">add to footnotes</option>
+			<option value="remove">remove</option>
+			</select></label></dd>
+	</dl>
+	</fieldset>
+	<fieldset class="action" style="background: transparent; border: none; margin-bottom: 20px; padding: 0;">
+		<input type="submit" id="sudbmit" name="submit" value="Create Feed" />
+	</fieldset>
+	</form>
+	
+	<h2>For the site owner</h2>
+	
+	<p>Thanks for downloading and setting this up. If you haven't done so already, <a href="ftr_compatibility_test.php">check server compatibility</a>
+	to see if your environment will support this application.</p>
+	<p>If everything's okay, feel free to edit this file (index.html) and make any changes you like. If you plan
+	to offer this service to others, please keep a download link so users can grab a copy of the code if they 
+	want it (you can either offer the download yourself, or link to the download page on fivefilters.org). 
+	That's one requirement of the license.</p>
+	<p>Thanks! :)</p>
+	
+	<h2>For everyone else</h2>
+	
+	<h3>About</h3>
+	<p>This is a free software project to help people extract content from web pages. It can extract content from a standard HTML page and return a 1-item feed or it can transform an existing feed into a full-text feed. It is being developed as part of the <a href="http://fivefilters.org">Five Filters</a> project to promote independent, non-corporate media.</p>
+	
+	<h3>Bookmarklet</h3>
+	<p>To easily transform partial-feeds you encounter (or convert any content on a page into a 1-item feed), drag the link below to your browser's bookmarks toolbar.
+	Then whenever you'd like a full-text feed, click the bookmarklet.</p>
+	<p>Drag this: 
+	<script type="text/javascript">
+	document.write('<a style="cursor: move;" onclick="alert(\'drag to bookmarks toolbar\'); return false;" href="javascript:location.href=\''+baseUrl+'/makefulltextfeed.php?url=\'+escape(document.location.href);">Full-Text RSS</a>');
+	</script>
+	
+	<h3 id="api">API</h3>
+	<p>To extract content from a web page or to transform an existing partial feed to full text, pass the URL (<a href="http://meyerweb.com/eric/tools/dencoder/">encoded</a>) in the querystring to the following URL:</p>
+	<ul>
+		<li style="font-family: monospace;"><script type="text/javascript">document.write(baseUrl);</script>/makefulltextfeed.php?url=<strong>[url]</strong></li>
+	</ul>
+	<p>If you have an API key, add that to the querystring:</p>
+	<ul>
+		<li style="font-family: monospace; white-space:nowrap;"><script type="text/javascript">document.write(baseUrl);</script>/makefulltextfeed.php?key=<strong>[key]</strong>&amp;url=<strong>[url]</strong></li>
+		<li style="font-family: monospace; white-space:nowrap;"><script type="text/javascript">document.write(baseUrl);</script>/makefulltextfeed.php?key=<strong>[key]</strong>&amp;max=<strong>[number of feed items]</strong>&amp;url=<strong>[url]</strong></li>
+	</ul>
+	
+	<p>If you're not hosting this yourself, you do not have to rely on an external API if you don't want to &mdash; this is a free software (open source) 
+	project licensed under the AGPL. You're free to <a href="http://fivefilters.org/content-only/#download">download your own copy</a>.</p>
+	
+	<h3>Source Code and Technologies</h3>
+	<p><a href="https://code.launchpad.net/~keyvan/fivefilters/content-only">Source code available on launchpad.net</a>.</p><p>The application uses <a href="http://en.wikipedia.org/wiki/PHP">PHP</a>, <a href="http://www.keyvan.net/2010/08/php-readability/">PHP Readability</a>, <a href="http://simplepie.org/">SimplePie</a>, <a href="http://www.ajaxray.com/blog/2008/03/08/php-universal-feed-generator-supports-rss-10-rss-20-and-atom/">FeedWriter</a>, Humble HTTP Agent, <a href="http://framework.zend.com/manual/en/zend.cache.introduction.html">Zend Cache</a> and <a href="http://hg.gsnedders.com/iri/">IRI</a>. Readability is the magic piece of code that tries to identify and extract the content block from any given web page.</p>
+
+	<h3>System Requirements</h3>
+	
+	<p>PHP 5.2 or above is required. 
+	The code has been tested on Windows and Linux using the Apache web server. If you're a Windows user, you can try it on your own machine using <a href="http://www.wampserver.com/en/index.php">WampServer</a>.</p>
+	
+	<h3 id="download">Download and Installation</h3>
+	<p>The software can be downloaded free of charge through launchpad.net using a Bazaar client (see below). 
+	However, for those who'd like a simpler solution, you can also <a href="http://fivefilters.org/content-only/#download">buy a zip package</a> with the 
+	source code.</p>
+	
+	<h3>Installation with the Bazaar client</h3>
+	
+	<ol style="width: 800px">
+		<li>Log in to your host using SSH</li>
+		<li>Change to the directory where you want Full-Text RSS installed</li>
+		<li>Enter <kbd>bzr export full-text-rss http://bazaar.launchpad.net/~keyvan/fivefilters/content-only/</kbd></li>
+		<li>Now enter <kbd>chmod -R 0777 full-text-rss/cache/</kbd></li>
+		<li><strong>That's it!</strong> Try accessing the full-text-rss folder through your web browser, you should see the form asking for a URL.</li>
+		<li>(Optional) If you'd like to customise the software, rename config-sample.php to config.php and edit the file.</li>
+	</ol>
+	
+	<p>If you'd like to create a feed without going through the form first, you can simply pass the URL in the query string to makefulltextfeed.php (see the <a href="#api">API section</a> above).</p>
+	
+	<h3>License</h3>
+	<p><a href="http://en.wikipedia.org/wiki/Affero_General_Public_License" style="border-bottom: none;"><img src="images/agplv3.png" alt="AGPL logo" /></a><br />This web application is licensed under the <a href="http://en.wikipedia.org/wiki/Affero_General_Public_License">AGPL version 3</a> &mdash; which basically means if you use the code to offer the same or similar service for your users, you are also required to share the code with your users so they can do the same themselves. (<a href="http://www.clipperz.com/users/marco/blog/2008/05/30/freedom_and_privacy_cloud_call_action">More on why this is important.</a>)</p> 
+	<p>The libraries used by the application are licensed as follows...</p>
+	<ul>
+		<li>Readability: <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License v2</a></li>
+		<li>SimplePie: <a href="http://en.wikipedia.org/wiki/BSD_license">BSD</a></li>
+		<li>FeedWriter: <a href="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html">GPL v2</a></li>
+		<li>Humble HTTP Agent: <a href="http://en.wikipedia.org/wiki/Affero_General_Public_License">AGPL v3</a></li>
+		<li>Zend Cache: <a href="http://framework.zend.com/license/new-bsd">New BSD</a></li>
+		<li>IRI: <a href="http://en.wikipedia.org/wiki/BSD_license">BSD</a></li>		
+	</ul>
+	
+	<h3 id="donate">Donate</h3>
+	<p>To support the development of the Full-Text RSS project, please <a href="http://fivefilters.org/content-only/#donate">donate</a>. All donations greatly appreciated.</p>
+	
+	</div>
+  </body>
+</html>

js/niceforms.js

@@ -0,0 +1,576 @@
+/*#############################################################
+Name: Niceforms
+Version: 2.0
+Author: Lucian Slatineanu
+URL: http://www.emblematiq.com/projects/niceforms/
+
+Feel free to use and modify but please keep this copyright intact.
+#################################################################*/
+
+//Theme Variables - edit these to match your theme
+var imagesPath = "images/niceforms/";
+var selectRightWidthSimple = 19;
+var selectRightWidthScroll = 2;
+var selectMaxHeight = 200;
+var textareaTopPadding = 10;
+var textareaSidePadding = 10;
+
+//Global Variables
+var NF = new Array();
+var isIE = false;
+var resizeTest = 1;
+
+//Initialization function
+function NFInit() {
+	try {
+		document.execCommand('BackgroundImageCache', false, true);
+	} catch(e) {}
+	if(!document.getElementById) {return false;}
+	//alert("click me first");
+	NFDo('start');
+}
+function NFDo(what) {
+	var niceforms = document.getElementsByTagName('form');
+	var identifier = new RegExp('(^| )'+'niceform'+'( |$)');
+	if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)) {
+		var ieversion=new Number(RegExp.$1);
+		if(ieversion < 7) {return false;} //exit script if IE6
+		isIE = true;
+	}
+	for(var q = 0; q < niceforms.length; q++) {if(identifier.test(niceforms[q].className)) {
+		if(what == "start") { //Load Niceforms
+			NF[q] = new niceform(niceforms[q]);
+			niceforms[q].start();
+		}
+		else { //Unload Niceforms
+			niceforms[q].unload();
+			NF[q] = "";
+		}
+	}}
+}
+function NFFix() {
+	NFDo('stop');
+	NFDo('start');
+}
+function niceform(nf) {
+	nf._inputText = new Array(); nf._inputRadio = new Array(); nf._inputCheck = new Array(); nf._inputSubmit = new Array(); nf._inputFile = new Array(); nf._textarea = new Array(); nf._select = new Array(); nf._multiselect = new Array();
+	nf.add_inputText = function(obj) {this._inputText[this._inputText.length] = obj; inputText(obj);}
+	nf.add_inputRadio = function(obj) {this._inputRadio[this._inputRadio.length] = obj; inputRadio(obj);}
+	nf.add_inputCheck = function(obj) {this._inputCheck[this._inputCheck.length] = obj; inputCheck(obj);}
+	nf.add_inputSubmit = function(obj) {this._inputSubmit[this._inputSubmit.length] = obj; inputSubmit(obj);}
+	nf.add_inputFile = function(obj) {this._inputFile[this._inputFile.length] = obj; inputFile(obj);}
+	nf.add_textarea = function(obj) {this._textarea[this._textarea.length] = obj; textarea(obj);}
+	nf.add_select = function(obj) {this._select[this._select.length] = obj; selects(obj);}
+	nf.add_multiselect = function(obj) {this._multiselect[this._multiselect.length] = obj; multiSelects(obj);}
+	nf.start = function() {
+		//Separate and assign elements
+		var allInputs = this.getElementsByTagName('input');
+		for(var w = 0; w < allInputs.length; w++) {
+			switch(allInputs[w].type) {
+				case "text": case "password": {this.add_inputText(allInputs[w]); break;}
+				case "radio": {this.add_inputRadio(allInputs[w]); break;}
+				case "checkbox": {this.add_inputCheck(allInputs[w]); break;}
+				case "submit": case "reset": case "button": {this.add_inputSubmit(allInputs[w]); break;}
+				case "file": {this.add_inputFile(allInputs[w]); break;}
+			}
+		}
+		var allButtons = this.getElementsByTagName('button');
+		for(var w = 0; w < allButtons.length; w++) {
+			this.add_inputSubmit(allButtons[w]);
+		}
+		var allTextareas = this.getElementsByTagName('textarea');
+		for(var w = 0; w < allTextareas.length; w++) {
+			this.add_textarea(allTextareas[w]);
+		}
+		var allSelects = this.getElementsByTagName('select');
+		for(var w = 0; w < allSelects.length; w++) {
+			if(allSelects[w].size == "1") {this.add_select(allSelects[w]);}
+			else {this.add_multiselect(allSelects[w]);}
+		}
+		//Start
+		for(w = 0; w < this._inputText.length; w++) {this._inputText[w].init();}
+		for(w = 0; w < this._inputRadio.length; w++) {this._inputRadio[w].init();}
+		for(w = 0; w < this._inputCheck.length; w++) {this._inputCheck[w].init();}
+		for(w = 0; w < this._inputSubmit.length; w++) {this._inputSubmit[w].init();}
+		for(w = 0; w < this._inputFile.length; w++) {this._inputFile[w].init();}
+		for(w = 0; w < this._textarea.length; w++) {this._textarea[w].init();}
+		for(w = 0; w < this._select.length; w++) {this._select[w].init(w);}
+		for(w = 0; w < this._multiselect.length; w++) {this._multiselect[w].init(w);}
+	}
+	nf.unload = function() {
+		//Stop
+		for(w = 0; w < this._inputText.length; w++) {this._inputText[w].unload();}
+		for(w = 0; w < this._inputRadio.length; w++) {this._inputRadio[w].unload();}
+		for(w = 0; w < this._inputCheck.length; w++) {this._inputCheck[w].unload();}
+		for(w = 0; w < this._inputSubmit.length; w++) {this._inputSubmit[w].unload();}
+		for(w = 0; w < this._inputFile.length; w++) {this._inputFile[w].unload();}
+		for(w = 0; w < this._textarea.length; w++) {this._textarea[w].unload();}
+		for(w = 0; w < this._select.length; w++) {this._select[w].unload();}
+		for(w = 0; w < this._multiselect.length; w++) {this._multiselect[w].unload();}
+	}
+}
+function inputText(el) { //extent Text inputs
+	el.oldClassName = el.className;
+	el.left = document.createElement('img');
+	el.left.src = imagesPath + "0.png";
+	el.left.className = "NFTextLeft";
+	el.right = document.createElement('img');
+	el.right.src = imagesPath + "0.png";
+	el.right.className = "NFTextRight";
+	el.dummy = document.createElement('div');
+	el.dummy.className = "NFTextCenter";
+	el.onfocus = function() {
+		this.dummy.className = "NFTextCenter NFh";
+		this.left.className = "NFTextLeft NFh";
+		this.right.className = "NFTextRight NFh";
+	}
+	el.onblur = function() {
+		this.dummy.className = "NFTextCenter";
+		this.left.className = "NFTextLeft";
+		this.right.className = "NFTextRight";
+	}
+	el.init = function() {
+		this.parentNode.insertBefore(this.left, this);
+		this.parentNode.insertBefore(this.right, this.nextSibling);
+		this.dummy.appendChild(this);
+		this.right.parentNode.insertBefore(this.dummy, this.right);
+		this.className = "NFText";
+	}
+	el.unload = function() {
+		this.parentNode.parentNode.appendChild(this);
+		this.parentNode.removeChild(this.left);
+		this.parentNode.removeChild(this.right);
+		this.parentNode.removeChild(this.dummy);
+		this.className = this.oldClassName;
+	}
+}
+function inputRadio(el) { //extent Radio buttons
+	el.oldClassName = el.className;
+	el.dummy = document.createElement('div');
+	if(el.checked) {el.dummy.className = "NFRadio NFh";}
+	else {el.dummy.className = "NFRadio";}
+	el.dummy.ref = el;
+	if(isIE == false) {el.dummy.style.left = findPosX(el) + 'px'; el.dummy.style.top = findPosY(el) + 'px';}
+	else {el.dummy.style.left = findPosX(el) + 4 + 'px'; el.dummy.style.top = findPosY(el) + 4 + 'px';}
+	el.dummy.onclick = function() {
+		if(!this.ref.checked) {
+			var siblings = getInputsByName(this.ref.name);
+			for(var q = 0; q < siblings.length; q++) {
+				siblings[q].checked = false;
+				siblings[q].dummy.className = "NFRadio";
+			}
+			this.ref.checked = true;
+			this.className = "NFRadio NFh";
+		}
+	}
+	el.onclick = function() {
+		if(this.checked) {
+			var siblings = getInputsByName(this.name);
+			for(var q = 0; q < siblings.length; q++) {
+				siblings[q].dummy.className = "NFRadio";
+			}
+			this.dummy.className = "NFRadio NFh";
+		}
+	}
+	el.onfocus = function() {this.dummy.className += " NFfocused";}
+	el.onblur = function() {this.dummy.className = this.dummy.className.replace(/ NFfocused/g, "");}
+	el.init = function() {
+		this.parentNode.insertBefore(this.dummy, this);
+		el.className = "NFhidden";
+	}
+	el.unload = function() {
+		this.parentNode.removeChild(this.dummy);
+		this.className = this.oldClassName;
+	}
+}
+function inputCheck(el) { //extend Checkboxes
+	el.oldClassName = el.className;
+	el.dummy = document.createElement('img');
+	el.dummy.src = imagesPath + "0.png";
+	if(el.checked) {el.dummy.className = "NFCheck NFh";}
+	else {el.dummy.className = "NFCheck";}
+	el.dummy.ref = el;
+	if(isIE == false) {el.dummy.style.left = findPosX(el) + 'px'; el.dummy.style.top = findPosY(el) + 'px';}
+	else {el.dummy.style.left = findPosX(el) + 4 + 'px'; el.dummy.style.top = findPosY(el) + 4 + 'px';}
+	el.dummy.onclick = function() {
+		if(!this.ref.checked) {
+			this.ref.checked = true;
+			this.className = "NFCheck NFh";
+		}
+		else {
+			this.ref.checked = false;
+			this.className = "NFCheck";
+		}
+	}
+	el.onclick = function() {
+		if(this.checked) {this.dummy.className = "NFCheck NFh";}
+		else {this.dummy.className = "NFCheck";}
+	}
+	el.onfocus = function() {this.dummy.className += " NFfocused";}
+	el.onblur = function() {this.dummy.className = this.dummy.className.replace(/ NFfocused/g, "");}
+	el.init = function() {
+		this.parentNode.insertBefore(this.dummy, this);
+		el.className = "NFhidden";
+	} 
+	el.unload = function() {
+		this.parentNode.removeChild(this.dummy);
+		this.className = this.oldClassName;
+	}
+}
+function inputSubmit(el) { //extend Buttons
+	el.oldClassName = el.className;
+	el.left = document.createElement('img');
+	el.left.className = "NFButtonLeft";
+	el.left.src = imagesPath + "0.png";
+	el.right = document.createElement('img');
+	el.right.src = imagesPath + "0.png";
+	el.right.className = "NFButtonRight";
+	el.onmouseover = function() {
+		this.className = "NFButton NFh";
+		this.left.className = "NFButtonLeft NFh";
+		this.right.className = "NFButtonRight NFh";
+	}
+	el.onmouseout = function() {
+		this.className = "NFButton";
+		this.left.className = "NFButtonLeft";
+		this.right.className = "NFButtonRight";
+	}
+	el.init = function() {
+		this.parentNode.insertBefore(this.left, this);
+		this.parentNode.insertBefore(this.right, this.nextSibling);
+		this.className = "NFButton";
+	}
+	el.unload = function() {
+		this.parentNode.removeChild(this.left);
+		this.parentNode.removeChild(this.right);
+		this.className = this.oldClassName;
+	}
+}
+function inputFile(el) { //extend File inputs
+	el.oldClassName = el.className;
+	el.dummy = document.createElement('div');
+	el.dummy.className = "NFFile";
+	el.file = document.createElement('div');
+	el.file.className = "NFFileNew";
+	el.center = document.createElement('div');
+	el.center.className = "NFTextCenter";
+	el.clone = document.createElement('input');
+	el.clone.type = "text";
+	el.clone.className = "NFText";
+	el.clone.ref = el;
+	el.left = document.createElement('img');
+	el.left.src = imagesPath + "0.png";
+	el.left.className = "NFTextLeft";
+	el.button = document.createElement('img');
+	el.button.src = imagesPath + "0.png";
+	el.button.className = "NFFileButton";
+	el.button.ref = el;
+	el.button.onclick = function() {this.ref.click();}
+	el.init = function() {
+		var top = this.parentNode;
+		if(this.previousSibling) {var where = this.previousSibling;}
+		else {var where = top.childNodes[0];}
+		top.insertBefore(this.dummy, where);
+		this.dummy.appendChild(this);
+		this.center.appendChild(this.clone);
+		this.file.appendChild(this.center);
+		this.file.insertBefore(this.left, this.center);
+		this.file.appendChild(this.button);
+		this.dummy.appendChild(this.file);
+		this.className = "NFhidden";
+		this.relatedElement = this.clone;
+	}
+	el.unload = function() {
+		this.parentNode.parentNode.appendChild(this);
+		this.parentNode.removeChild(this.dummy);
+		this.className = this.oldClassName;
+	}
+	el.onchange = el.onmouseout = function() {this.relatedElement.value = this.value;}
+	el.onfocus = function() {
+		this.left.className = "NFTextLeft NFh";
+		this.center.className = "NFTextCenter NFh";
+		this.button.className = "NFFileButton NFh";
+	}
+	el.onblur = function() {
+		this.left.className = "NFTextLeft";
+		this.center.className = "NFTextCenter";
+		this.button.className = "NFFileButton";
+	}
+	el.onselect = function() {
+		this.relatedElement.select();
+		this.value = '';
+	}
+}
+function textarea(el) { //extend Textareas
+	el.oldClassName = el.className;
+	el.height = el.offsetHeight - textareaTopPadding;
+	el.width = el.offsetWidth - textareaSidePadding;
+	el.topLeft = document.createElement('img');
+	el.topLeft.src = imagesPath + "0.png";
+	el.topLeft.className = "NFTextareaTopLeft";
+	el.topRight = document.createElement('div');
+	el.topRight.className = "NFTextareaTop";
+	el.bottomLeft = document.createElement('img');
+	el.bottomLeft.src = imagesPath + "0.png";
+	el.bottomLeft.className = "NFTextareaBottomLeft";
+	el.bottomRight = document.createElement('div');
+	el.bottomRight.className = "NFTextareaBottom";
+	el.left = document.createElement('div');
+	el.left.className = "NFTextareaLeft";
+	el.right = document.createElement('div');
+	el.right.className = "NFTextareaRight";
+	el.init = function() {
+		var top = this.parentNode;
+		if(this.previousSibling) {var where = this.previousSibling;}
+		else {var where = top.childNodes[0];}
+		top.insertBefore(el.topRight, where);
+		top.insertBefore(el.right, where);
+		top.insertBefore(el.bottomRight, where);
+		this.topRight.appendChild(this.topLeft);
+		this.right.appendChild(this.left);
+		this.right.appendChild(this);
+		this.bottomRight.appendChild(this.bottomLeft);
+		el.style.width = el.topRight.style.width = el.bottomRight.style.width = el.width + 'px';
+		el.style.height = el.left.style.height = el.right.style.height = el.height + 'px';
+		this.className = "NFTextarea";
+	}
+	el.unload = function() {
+		this.parentNode.parentNode.appendChild(this);
+		this.parentNode.removeChild(this.topRight);
+		this.parentNode.removeChild(this.bottomRight);
+		this.parentNode.removeChild(this.right);
+		this.className = this.oldClassName;
+		this.style.width = this.style.height = "";
+	}
+	el.onfocus = function() {
+		this.topLeft.className = "NFTextareaTopLeft NFh";
+		this.topRight.className = "NFTextareaTop NFhr";
+		this.left.className = "NFTextareaLeftH";
+		this.right.className = "NFTextareaRightH";
+		this.bottomLeft.className = "NFTextareaBottomLeft NFh";
+		this.bottomRight.className = "NFTextareaBottom NFhr";
+	}
+	el.onblur = function() {
+		this.topLeft.className = "NFTextareaTopLeft";
+		this.topRight.className = "NFTextareaTop";
+		this.left.className = "NFTextareaLeft";
+		this.right.className = "NFTextareaRight";
+		this.bottomLeft.className = "NFTextareaBottomLeft";
+		this.bottomRight.className = "NFTextareaBottom";
+	}
+}
+function selects(el) { //extend Selects
+	el.oldClassName = el.className;
+	el.dummy = document.createElement('div');
+	el.dummy.className = "NFSelect";
+	el.dummy.style.width = el.offsetWidth + 'px';
+	el.dummy.ref = el;
+	el.left = document.createElement('img');
+	el.left.src = imagesPath + "0.png";
+	el.left.className = "NFSelectLeft";
+	el.right = document.createElement('div');
+	el.right.className = "NFSelectRight";
+	el.txt = document.createTextNode(el.options[0].text);
+	el.bg = document.createElement('div');
+	el.bg.className = "NFSelectTarget";
+	el.bg.style.display = "none";
+	el.opt = document.createElement('ul');
+	el.opt.className = "NFSelectOptions";
+	el.dummy.style.left = findPosX(el) + 'px';
+	el.dummy.style.top = findPosY(el) + 'px';
+	el.opts = new Array(el.options.length);
+	el.init = function(pos) {
+		this.dummy.appendChild(this.left);
+		this.right.appendChild(this.txt);
+		this.dummy.appendChild(this.right);
+		this.bg.appendChild(this.opt);
+		this.dummy.appendChild(this.bg);
+		for(var q = 0; q < this.options.length; q++) {
+			this.opts[q] = new option(this.options[q], q);
+			this.opt.appendChild(this.options[q].li);
+			this.options[q].lnk.onclick = function() {
+				this._onclick();
+				this.ref.dummy.getElementsByTagName('div')[0].innerHTML = this.ref.options[this.pos].text;
+				this.ref.options[this.pos].selected = "selected";
+				for(var w = 0; w < this.ref.options.length; w++) {this.ref.options[w].lnk.className = "";}
+				this.ref.options[this.pos].lnk.className = "NFOptionActive";
+			}
+		}
+		if(this.options.selectedIndex) {
+			this.dummy.getElementsByTagName('div')[0].innerHTML = this.options[this.options.selectedIndex].text;
+			this.options[this.options.selectedIndex].lnk.className = "NFOptionActive";
+		}
+		this.dummy.style.zIndex = 999 - pos;
+		this.parentNode.insertBefore(this.dummy, this);
+		this.className = "NFhidden";
+	}
+	el.unload = function() {
+		this.parentNode.removeChild(this.dummy);
+		this.className = this.oldClassName;
+	}
+	el.dummy.onclick = function() {
+		var allDivs = document.getElementsByTagName('div'); for(var q = 0; q < allDivs.length; q++) {if((allDivs[q].className == "NFSelectTarget") && (allDivs[q] != this.ref.bg)) {allDivs[q].style.display = "none";}}
+		if(this.ref.bg.style.display == "none") {this.ref.bg.style.display = "block";}
+		else {this.ref.bg.style.display = "none";}
+		if(this.ref.opt.offsetHeight > selectMaxHeight) {
+			this.ref.bg.style.width = this.ref.offsetWidth - selectRightWidthScroll + 33 + 'px';
+			this.ref.opt.style.width = this.ref.offsetWidth - selectRightWidthScroll + 'px';
+		}
+		else {
+			this.ref.bg.style.width = this.ref.offsetWidth - selectRightWidthSimple + 33 + 'px';
+			this.ref.opt.style.width = this.ref.offsetWidth - selectRightWidthSimple + 'px';
+		}
+	}
+	el.bg.onmouseout = function(e) {
+		if (!e) var e = window.event;
+		e.cancelBubble = true;
+		if (e.stopPropagation) e.stopPropagation();
+		var reltg = (e.relatedTarget) ? e.relatedTarget : e.toElement;
+		if((reltg.nodeName == 'A') || (reltg.nodeName == 'LI') || (reltg.nodeName == 'UL')) return;
+		if((reltg.nodeName == 'DIV') || (reltg.className == 'NFSelectTarget')) return;
+		else{this.style.display = "none";}
+	}
+	el.dummy.onmouseout = function(e) {
+		if (!e) var e = window.event;
+		e.cancelBubble = true;
+		if (e.stopPropagation) e.stopPropagation();
+		var reltg = (e.relatedTarget) ? e.relatedTarget : e.toElement;
+		if((reltg.nodeName == 'A') || (reltg.nodeName == 'LI') || (reltg.nodeName == 'UL')) return;
+		if((reltg.nodeName == 'DIV') || (reltg.className == 'NFSelectTarget')) return;
+		else{this.ref.bg.style.display = "none";}
+	}
+	el.onfocus = function() {this.dummy.className += " NFfocused";}
+	el.onblur = function() {this.dummy.className = this.dummy.className.replace(/ NFfocused/g, "");}
+	el.onkeydown = function(e) {
+		if (!e) var e = window.event;
+		var thecode = e.keyCode;
+		var active = this.selectedIndex;
+		switch(thecode){
+			case 40: //down
+				if(active < this.options.length - 1) {
+					for(var w = 0; w < this.options.length; w++) {this.options[w].lnk.className = "";}
+					var newOne = active + 1;
+					this.options[newOne].selected = "selected";
+					this.options[newOne].lnk.className = "NFOptionActive";
+					this.dummy.getElementsByTagName('div')[0].innerHTML = this.options[newOne].text;
+				}
+				return false;
+				break;
+			case 38: //up
+				if(active > 0) {
+					for(var w = 0; w < this.options.length; w++) {this.options[w].lnk.className = "";}
+					var newOne = active - 1;
+					this.options[newOne].selected = "selected";
+					this.options[newOne].lnk.className = "NFOptionActive";
+					this.dummy.getElementsByTagName('div')[0].innerHTML = this.options[newOne].text;
+				}
+				return false;
+				break;
+			default:
+				break;
+		}
+	}
+}
+function multiSelects(el) { //extend Multiple Selects
+	el.oldClassName = el.className;
+	el.height = el.offsetHeight;
+	el.width = el.offsetWidth;
+	el.topLeft = document.createElement('img');
+	el.topLeft.src = imagesPath + "0.png";
+	el.topLeft.className = "NFMultiSelectTopLeft";
+	el.topRight = document.createElement('div');
+	el.topRight.className = "NFMultiSelectTop";
+	el.bottomLeft = document.createElement('img');
+	el.bottomLeft.src = imagesPath + "0.png";
+	el.bottomLeft.className = "NFMultiSelectBottomLeft";
+	el.bottomRight = document.createElement('div');
+	el.bottomRight.className = "NFMultiSelectBottom";
+	el.left = document.createElement('div');
+	el.left.className = "NFMultiSelectLeft";
+	el.right = document.createElement('div');
+	el.right.className = "NFMultiSelectRight";
+	el.init = function() {
+		var top = this.parentNode;
+		if(this.previousSibling) {var where = this.previousSibling;}
+		else {var where = top.childNodes[0];}
+		top.insertBefore(el.topRight, where);
+		top.insertBefore(el.right, where);
+		top.insertBefore(el.bottomRight, where);
+		this.topRight.appendChild(this.topLeft);
+		this.right.appendChild(this.left);
+		this.right.appendChild(this);
+		this.bottomRight.appendChild(this.bottomLeft);
+		el.style.width = el.topRight.style.width = el.bottomRight.style.width = el.width + 'px';
+		el.style.height = el.left.style.height = el.right.style.height = el.height + 'px';
+		el.className = "NFMultiSelect";
+	}
+	el.unload = function() {
+		this.parentNode.parentNode.appendChild(this);
+		this.parentNode.removeChild(this.topRight);
+		this.parentNode.removeChild(this.bottomRight);
+		this.parentNode.removeChild(this.right);
+		this.className = this.oldClassName;
+		this.style.width = this.style.height = "";
+	}
+	el.onfocus = function() {
+		this.topLeft.className = "NFMultiSelectTopLeft NFh";
+		this.topRight.className = "NFMultiSelectTop NFhr";
+		this.left.className = "NFMultiSelectLeftH";
+		this.right.className = "NFMultiSelectRightH";
+		this.bottomLeft.className = "NFMultiSelectBottomLeft NFh";
+		this.bottomRight.className = "NFMultiSelectBottom NFhr";
+	}
+	el.onblur = function() {
+		this.topLeft.className = "NFMultiSelectTopLeft";
+		this.topRight.className = "NFMultiSelectTop";
+		this.left.className = "NFMultiSelectLeft";
+		this.right.className = "NFMultiSelectRight";
+		this.bottomLeft.className = "NFMultiSelectBottomLeft";
+		this.bottomRight.className = "NFMultiSelectBottom";
+	}
+}
+function option(el, no) { //extend Options
+	el.li = document.createElement('li');
+	el.lnk = document.createElement('a');
+	el.lnk.href = "javascript:;";
+	el.lnk.ref = el.parentNode;
+	el.lnk.pos = no;
+	el.lnk._onclick = el.onclick || function () {};
+	el.txt = document.createTextNode(el.text);
+	el.lnk.appendChild(el.txt);
+	el.li.appendChild(el.lnk);
+}
+
+//Get Position
+function findPosY(obj) {
+	var posTop = 0;
+	do {posTop += obj.offsetTop;} while (obj = obj.offsetParent);
+	return posTop;
+}
+function findPosX(obj) {
+	var posLeft = 0;
+	do {posLeft += obj.offsetLeft;} while (obj = obj.offsetParent);
+	return posLeft;
+}
+//Get Siblings
+function getInputsByName(name) {
+	var inputs = document.getElementsByTagName("input");
+	var w = 0; var results = new Array();
+	for(var q = 0; q < inputs.length; q++) {if(inputs[q].name == name) {results[w] = inputs[q]; ++w;}}
+	return results;
+}
+
+//Add events
+var existingLoadEvent = window.onload || function () {};
+var existingResizeEvent = window.onresize || function() {};
+window.onload = function () {
+    existingLoadEvent();
+    NFInit();
+}
+window.onresize = function() {
+	if(resizeTest != document.documentElement.clientHeight) {
+		existingResizeEvent();
+		NFFix();
+	}
+	resizeTest = document.documentElement.clientHeight;
+}

libraries/Zend/Cache.php

@@ -0,0 +1,250 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Cache.php 21974 2010-04-23 17:10:17Z alexander $
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+abstract class Zend_Cache
+{
+
+    /**
+     * Standard frontends
+     *
+     * @var array
+     */
+    public static $standardFrontends = array('Core', 'Output', 'Class', 'File', 'Function', 'Page');
+
+    /**
+     * Standard backends
+     *
+     * @var array
+     */
+    public static $standardBackends = array('File', 'Sqlite', 'Memcached', 'Apc', 'ZendPlatform',
+                                            'Xcache', 'TwoLevels', 'ZendServer_Disk', 'ZendServer_ShMem');
+
+    /**
+     * Standard backends which implement the ExtendedInterface
+     *
+     * @var array
+     */
+    public static $standardExtendedBackends = array('File', 'Apc', 'TwoLevels', 'Memcached', 'Sqlite');
+
+    /**
+     * Only for backward compatibily (may be removed in next major release)
+     *
+     * @var array
+     * @deprecated
+     */
+    public static $availableFrontends = array('Core', 'Output', 'Class', 'File', 'Function', 'Page');
+
+    /**
+     * Only for backward compatibily (may be removed in next major release)
+     *
+     * @var array
+     * @deprecated
+     */
+    public static $availableBackends = array('File', 'Sqlite', 'Memcached', 'Apc', 'ZendPlatform', 'Xcache', 'TwoLevels');
+
+    /**
+     * Consts for clean() method
+     */
+    const CLEANING_MODE_ALL              = 'all';
+    const CLEANING_MODE_OLD              = 'old';
+    const CLEANING_MODE_MATCHING_TAG     = 'matchingTag';
+    const CLEANING_MODE_NOT_MATCHING_TAG = 'notMatchingTag';
+    const CLEANING_MODE_MATCHING_ANY_TAG = 'matchingAnyTag';
+
+    /**
+     * Factory
+     *
+     * @param mixed  $frontend        frontend name (string) or Zend_Cache_Frontend_ object
+     * @param mixed  $backend         backend name (string) or Zend_Cache_Backend_ object
+     * @param array  $frontendOptions associative array of options for the corresponding frontend constructor
+     * @param array  $backendOptions  associative array of options for the corresponding backend constructor
+     * @param boolean $customFrontendNaming if true, the frontend argument is used as a complete class name ; if false, the frontend argument is used as the end of "Zend_Cache_Frontend_[...]" class name
+     * @param boolean $customBackendNaming if true, the backend argument is used as a complete class name ; if false, the backend argument is used as the end of "Zend_Cache_Backend_[...]" class name
+     * @param boolean $autoload if true, there will no require_once for backend and frontend (usefull only for custom backends/frontends)
+     * @throws Zend_Cache_Exception
+     * @return Zend_Cache_Core|Zend_Cache_Frontend
+     */
+    public static function factory($frontend, $backend, $frontendOptions = array(), $backendOptions = array(), $customFrontendNaming = false, $customBackendNaming = false, $autoload = false)
+    {
+        if (is_string($backend)) {
+            $backendObject = self::_makeBackend($backend, $backendOptions, $customBackendNaming, $autoload);
+        } else {
+            if ((is_object($backend)) && (in_array('Zend_Cache_Backend_Interface', class_implements($backend)))) {
+                $backendObject = $backend;
+            } else {
+                self::throwException('backend must be a backend name (string) or an object which implements Zend_Cache_Backend_Interface');
+            }
+        }
+        if (is_string($frontend)) {
+            $frontendObject = self::_makeFrontend($frontend, $frontendOptions, $customFrontendNaming, $autoload);
+        } else {
+            if (is_object($frontend)) {
+                $frontendObject = $frontend;
+            } else {
+                self::throwException('frontend must be a frontend name (string) or an object');
+            }
+        }
+        $frontendObject->setBackend($backendObject);
+        return $frontendObject;
+    }
+
+    /**
+     * Frontend Constructor
+     *
+     * @param string  $backend
+     * @param array   $backendOptions
+     * @param boolean $customBackendNaming
+     * @param boolean $autoload
+     * @return Zend_Cache_Backend
+     */
+    public static function _makeBackend($backend, $backendOptions, $customBackendNaming = false, $autoload = false)
+    {
+        if (!$customBackendNaming) {
+            $backend  = self::_normalizeName($backend);
+        }
+        if (in_array($backend, Zend_Cache::$standardBackends)) {
+            // we use a standard backend
+            $backendClass = 'Zend_Cache_Backend_' . $backend;
+            // security controls are explicit
+            require_once str_replace('_', DIRECTORY_SEPARATOR, $backendClass) . '.php';
+        } else {
+            // we use a custom backend
+            if (!preg_match('~^[\w]+$~D', $backend)) {
+                Zend_Cache::throwException("Invalid backend name [$backend]");
+            }
+            if (!$customBackendNaming) {
+                // we use this boolean to avoid an API break
+                $backendClass = 'Zend_Cache_Backend_' . $backend;
+            } else {
+                $backendClass = $backend;
+            }
+            if (!$autoload) {
+                $file = str_replace('_', DIRECTORY_SEPARATOR, $backendClass) . '.php';
+                if (!(self::_isReadable($file))) {
+                    self::throwException("file $file not found in include_path");
+                }
+                require_once $file;
+            }
+        }
+        return new $backendClass($backendOptions);
+    }
+
+    /**
+     * Backend Constructor
+     *
+     * @param string  $frontend
+     * @param array   $frontendOptions
+     * @param boolean $customFrontendNaming
+     * @param boolean $autoload
+     * @return Zend_Cache_Core|Zend_Cache_Frontend
+     */
+    public static function _makeFrontend($frontend, $frontendOptions = array(), $customFrontendNaming = false, $autoload = false)
+    {
+        if (!$customFrontendNaming) {
+            $frontend = self::_normalizeName($frontend);
+        }
+        if (in_array($frontend, self::$standardFrontends)) {
+            // we use a standard frontend
+            // For perfs reasons, with frontend == 'Core', we can interact with the Core itself
+            $frontendClass = 'Zend_Cache_' . ($frontend != 'Core' ? 'Frontend_' : '') . $frontend;
+            // security controls are explicit
+            require_once str_replace('_', DIRECTORY_SEPARATOR, $frontendClass) . '.php';
+        } else {
+            // we use a custom frontend
+            if (!preg_match('~^[\w]+$~D', $frontend)) {
+                Zend_Cache::throwException("Invalid frontend name [$frontend]");
+            }
+            if (!$customFrontendNaming) {
+                // we use this boolean to avoid an API break
+                $frontendClass = 'Zend_Cache_Frontend_' . $frontend;
+            } else {
+                $frontendClass = $frontend;
+            }
+            if (!$autoload) {
+                $file = str_replace('_', DIRECTORY_SEPARATOR, $frontendClass) . '.php';
+                if (!(self::_isReadable($file))) {
+                    self::throwException("file $file not found in include_path");
+                }
+                require_once $file;
+            }
+        }
+        return new $frontendClass($frontendOptions);
+    }
+
+    /**
+     * Throw an exception
+     *
+     * Note : for perf reasons, the "load" of Zend/Cache/Exception is dynamic
+     * @param  string $msg  Message for the exception
+     * @throws Zend_Cache_Exception
+     */
+    public static function throwException($msg, Exception $e = null)
+    {
+        // For perfs reasons, we use this dynamic inclusion
+        require_once 'Zend/Cache/Exception.php';
+        throw new Zend_Cache_Exception($msg, 0, $e);
+    }
+
+    /**
+     * Normalize frontend and backend names to allow multiple words TitleCased
+     *
+     * @param  string $name  Name to normalize
+     * @return string
+     */
+    protected static function _normalizeName($name)
+    {
+        $name = ucfirst(strtolower($name));
+        $name = str_replace(array('-', '_', '.'), ' ', $name);
+        $name = ucwords($name);
+        $name = str_replace(' ', '', $name);
+        if (stripos($name, 'ZendServer') === 0) {
+            $name = 'ZendServer_' . substr($name, strlen('ZendServer'));
+        }
+
+        return $name;
+    }
+
+    /**
+     * Returns TRUE if the $filename is readable, or FALSE otherwise.
+     * This function uses the PHP include_path, where PHP's is_readable()
+     * does not.
+     *
+     * Note : this method comes from Zend_Loader (see #ZF-2891 for details)
+     *
+     * @param string   $filename
+     * @return boolean
+     */
+    private static function _isReadable($filename)
+    {
+        if (!$fh = @fopen($filename, 'r', true)) {
+            return false;
+        }
+        @fclose($fh);
+        return true;
+    }
+
+}

libraries/Zend/Cache/Backend.php

@@ -0,0 +1,266 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Backend.php 20882 2010-02-03 18:19:44Z matthew $
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend
+{
+    /**
+     * Frontend or Core directives
+     *
+     * =====> (int) lifetime :
+     * - Cache lifetime (in seconds)
+     * - If null, the cache is valid forever
+     *
+     * =====> (int) logging :
+     * - if set to true, a logging is activated throw Zend_Log
+     *
+     * @var array directives
+     */
+    protected $_directives = array(
+        'lifetime' => 3600,
+        'logging'  => false,
+        'logger'   => null
+    );
+
+    /**
+     * Available options
+     *
+     * @var array available options
+     */
+    protected $_options = array();
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        while (list($name, $value) = each($options)) {
+            $this->setOption($name, $value);
+        }
+    }
+
+    /**
+     * Set the frontend directives
+     *
+     * @param  array $directives Assoc of directives
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setDirectives($directives)
+    {
+        if (!is_array($directives)) Zend_Cache::throwException('Directives parameter must be an array');
+        while (list($name, $value) = each($directives)) {
+            if (!is_string($name)) {
+                Zend_Cache::throwException("Incorrect option name : $name");
+            }
+            $name = strtolower($name);
+            if (array_key_exists($name, $this->_directives)) {
+                $this->_directives[$name] = $value;
+            }
+
+        }
+
+        $this->_loggerSanity();
+    }
+
+    /**
+     * Set an option
+     *
+     * @param  string $name
+     * @param  mixed  $value
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setOption($name, $value)
+    {
+        if (!is_string($name)) {
+            Zend_Cache::throwException("Incorrect option name : $name");
+        }
+        $name = strtolower($name);
+        if (array_key_exists($name, $this->_options)) {
+            $this->_options[$name] = $value;
+        }
+    }
+
+    /**
+     * Get the life time
+     *
+     * if $specificLifetime is not false, the given specific life time is used
+     * else, the global lifetime is used
+     *
+     * @param  int $specificLifetime
+     * @return int Cache life time
+     */
+    public function getLifetime($specificLifetime)
+    {
+        if ($specificLifetime === false) {
+            return $this->_directives['lifetime'];
+        }
+        return $specificLifetime;
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * DEPRECATED : use getCapabilities() instead
+     *
+     * @deprecated
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return true;
+    }
+
+    /**
+     * Determine system TMP directory and detect if we have read access
+     *
+     * inspired from Zend_File_Transfer_Adapter_Abstract
+     *
+     * @return string
+     * @throws Zend_Cache_Exception if unable to determine directory
+     */
+    public function getTmpDir()
+    {
+        $tmpdir = array();
+        foreach (array($_ENV, $_SERVER) as $tab) {
+            foreach (array('TMPDIR', 'TEMP', 'TMP', 'windir', 'SystemRoot') as $key) {
+                if (isset($tab[$key])) {
+                    if (($key == 'windir') or ($key == 'SystemRoot')) {
+                        $dir = realpath($tab[$key] . '\\temp');
+                    } else {
+                        $dir = realpath($tab[$key]);
+                    }
+                    if ($this->_isGoodTmpDir($dir)) {
+                        return $dir;
+                    }
+                }
+            }
+        }
+        $upload = ini_get('upload_tmp_dir');
+        if ($upload) {
+            $dir = realpath($upload);
+            if ($this->_isGoodTmpDir($dir)) {
+                return $dir;
+            }
+        }
+        if (function_exists('sys_get_temp_dir')) {
+            $dir = sys_get_temp_dir();
+            if ($this->_isGoodTmpDir($dir)) {
+                return $dir;
+            }
+        }
+        // Attemp to detect by creating a temporary file
+        $tempFile = tempnam(md5(uniqid(rand(), TRUE)), '');
+        if ($tempFile) {
+            $dir = realpath(dirname($tempFile));
+            unlink($tempFile);
+            if ($this->_isGoodTmpDir($dir)) {
+                return $dir;
+            }
+        }
+        if ($this->_isGoodTmpDir('/tmp')) {
+            return '/tmp';
+        }
+        if ($this->_isGoodTmpDir('\\temp')) {
+            return '\\temp';
+        }
+        Zend_Cache::throwException('Could not determine temp directory, please specify a cache_dir manually');
+    }
+
+    /**
+     * Verify if the given temporary directory is readable and writable
+     *
+     * @param $dir temporary directory
+     * @return boolean true if the directory is ok
+     */
+    protected function _isGoodTmpDir($dir)
+    {
+        if (is_readable($dir)) {
+            if (is_writable($dir)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Make sure if we enable logging that the Zend_Log class
+     * is available.
+     * Create a default log object if none is set.
+     *
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _loggerSanity()
+    {
+        if (!isset($this->_directives['logging']) || !$this->_directives['logging']) {
+            return;
+        }
+
+        if (isset($this->_directives['logger'])) {
+            if ($this->_directives['logger'] instanceof Zend_Log) {
+                return;
+            }
+            Zend_Cache::throwException('Logger object is not an instance of Zend_Log class.');
+        }
+
+        // Create a default logger to the standard output stream
+        require_once 'Zend/Log.php';
+        require_once 'Zend/Log/Writer/Stream.php';
+        $logger = new Zend_Log(new Zend_Log_Writer_Stream('php://output'));
+        $this->_directives['logger'] = $logger;
+    }
+
+    /**
+     * Log a message at the WARN (4) priority.
+     *
+     * @param  string $message
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _log($message, $priority = 4)
+    {
+        if (!$this->_directives['logging']) {
+            return;
+        }
+
+        if (!isset($this->_directives['logger'])) {
+            Zend_Cache::throwException('Logging is enabled but logger is not set.');
+        }
+        $logger = $this->_directives['logger'];
+        if (!$logger instanceof Zend_Log) {
+            Zend_Cache::throwException('Logger object is not an instance of Zend_Log class.');
+        }
+        $logger->log($message, $priority);
+    }
+}

libraries/Zend/Cache/Backend/Apc.php

@@ -0,0 +1,355 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Apc.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend/ExtendedInterface.php';
+
+/**
+ * @see Zend_Cache_Backend
+ */
+require_once 'Zend/Cache/Backend.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Apc extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Log message
+     */
+    const TAGS_UNSUPPORTED_BY_CLEAN_OF_APC_BACKEND = 'Zend_Cache_Backend_Apc::clean() : tags are unsupported by the Apc backend';
+    const TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND =  'Zend_Cache_Backend_Apc::save() : tags are unsupported by the Apc backend';
+
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!extension_loaded('apc')) {
+            Zend_Cache::throwException('The apc extension must be loaded for using this backend !');
+        }
+        parent::__construct($options);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * WARNING $doNotTestCacheValidity=true is unsupported by the Apc backend
+     *
+     * @param  string  $id                     cache id
+     * @param  boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string cached datas (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $tmp = apc_fetch($id);
+        if (is_array($tmp)) {
+            return $tmp[0];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $tmp = apc_fetch($id);
+        if (is_array($tmp)) {
+            return $tmp[1];
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param string $data datas to cache
+     * @param string $id cache id
+     * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param int $specificLifetime if != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+        $result = apc_store($id, array($data, time(), $lifetime), $lifetime);
+        if (count($tags) > 0) {
+            $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        }
+        return $result;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        return apc_delete($id);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode clean mode
+     * @param  array  $tags array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                return apc_clear_cache('user');
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_Apc::clean() : CLEANING_MODE_OLD is unsupported by the Apc backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_log(self::TAGS_UNSUPPORTED_BY_CLEAN_OF_APC_BACKEND);
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * DEPRECATED : use getCapabilities() instead
+     *
+     * @deprecated
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return false;
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @throws Zend_Cache_Exception
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        $mem = apc_sma_info(true);
+        $memSize    = $mem['num_seg'] * $mem['seg_size'];
+        $memAvailable= $mem['avail_mem'];
+        $memUsed = $memSize - $memAvailable;
+        if ($memSize == 0) {
+            Zend_Cache::throwException('can\'t get apc memory size');
+        }
+        if ($memUsed > $memSize) {
+            return 100;
+        }
+        return ((int) (100. * ($memUsed / $memSize)));
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        $res = array();
+        $array = apc_cache_info('user', false);
+        $records = $array['cache_list'];
+        foreach ($records as $record) {
+            $res[] = $record['info'];
+        }
+        return $res;
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        $tmp = apc_fetch($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                // because this record is only with 1.7 release
+                // if old cache records are still there...
+                return false;
+            }
+            $lifetime = $tmp[2];
+            return array(
+                'expire' => $mtime + $lifetime,
+                'tags' => array(),
+                'mtime' => $mtime
+            );
+        }
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        $tmp = apc_fetch($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                // because this record is only with 1.7 release
+                // if old cache records are still there...
+                return false;
+            }
+            $lifetime = $tmp[2];
+            $newLifetime = $lifetime - (time() - $mtime) + $extraLifetime;
+            if ($newLifetime <=0) {
+                return false;
+            }
+            apc_store($id, array($data, time(), $newLifetime), $newLifetime);
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => false,
+            'tags' => false,
+            'expired_read' => false,
+            'priority' => false,
+            'infinite_lifetime' => false,
+            'get_list' => true
+        );
+    }
+
+}

libraries/Zend/Cache/Backend/BlackHole.php

@@ -0,0 +1,250 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: BlackHole.php 17867 2009-08-28 09:42:11Z yoshida@zend.co.jp $
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend/ExtendedInterface.php';
+
+/**
+ * @see Zend_Cache_Backend
+ */
+require_once 'Zend/Cache/Backend.php';
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_BlackHole 
+    extends Zend_Cache_Backend 
+    implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string $id cache id
+     * @param  boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data             Datas to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        return true;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        return true;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => remove too old cache entries ($tags is not used)
+     * 'matchingTag'    => remove cache entries matching all given tags
+     *                     ($tags can be an array of strings or a single string)
+     * 'notMatchingTag' => remove cache entries not matching one of the given tags
+     *                     ($tags can be an array of strings or a single string)
+     * 'matchingAnyTag' => remove cache entries matching any given tags
+     *                     ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode clean mode
+     * @param  tags array $tags array of tags
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        return true;
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        return array();
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param  array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        return array();
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     * @throws Zend_Cache_Exception
+     */
+    public function getFillingPercentage()
+    {
+        return 0;
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param  string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param  string $id cache id
+     * @param  int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        return false;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => true,
+            'tags'               => true,
+            'expired_read'       => true,
+            'priority'           => true,
+            'infinite_lifetime'  => true,
+            'get_list'           => true,
+        );
+    }
+
+    /**
+     * PUBLIC METHOD FOR UNIT TESTING ONLY !
+     *
+     * Force a cache record to expire
+     *
+     * @param string $id cache id
+     */
+    public function ___expire($id)
+    {
+    }
+}

libraries/Zend/Cache/Backend/ExtendedInterface.php

@@ -0,0 +1,126 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: ExtendedInterface.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend/Interface.php';
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+interface Zend_Cache_Backend_ExtendedInterface extends Zend_Cache_Backend_Interface
+{
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds();
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags();
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array());
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array());
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array());
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage();
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id);
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime);
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities();
+
+}

libraries/Zend/Cache/Backend/Interface.php

@@ -0,0 +1,99 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Interface.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+interface Zend_Cache_Backend_Interface
+{
+    /**
+     * Set the frontend directives
+     *
+     * @param array $directives assoc of directives
+     */
+    public function setDirectives($directives);
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * Note : return value is always "string" (unserialization is done by the core not by the backend)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false);
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id);
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data            Datas to cache
+     * @param  string $id              Cache id
+     * @param  array $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int   $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false);
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id);
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array());
+
+}

libraries/Zend/Cache/Backend/Memcached.php

@@ -0,0 +1,504 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Memcached.php 22208 2010-05-20 16:59:02Z mabe $
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend/ExtendedInterface.php';
+
+/**
+ * @see Zend_Cache_Backend
+ */
+require_once 'Zend/Cache/Backend.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Memcached extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Default Values
+     */
+    const DEFAULT_HOST = '127.0.0.1';
+    const DEFAULT_PORT =  11211;
+    const DEFAULT_PERSISTENT = true;
+    const DEFAULT_WEIGHT  = 1;
+    const DEFAULT_TIMEOUT = 1;
+    const DEFAULT_RETRY_INTERVAL = 15;
+    const DEFAULT_STATUS = true;
+    const DEFAULT_FAILURE_CALLBACK = null;
+
+    /**
+     * Log message
+     */
+    const TAGS_UNSUPPORTED_BY_CLEAN_OF_MEMCACHED_BACKEND = 'Zend_Cache_Backend_Memcached::clean() : tags are unsupported by the Memcached backend';
+    const TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND =  'Zend_Cache_Backend_Memcached::save() : tags are unsupported by the Memcached backend';
+
+    /**
+     * Available options
+     *
+     * =====> (array) servers :
+     * an array of memcached server ; each memcached server is described by an associative array :
+     * 'host' => (string) : the name of the memcached server
+     * 'port' => (int) : the port of the memcached server
+     * 'persistent' => (bool) : use or not persistent connections to this memcached server
+     * 'weight' => (int) : number of buckets to create for this server which in turn control its
+     *                     probability of it being selected. The probability is relative to the total
+     *                     weight of all servers.
+     * 'timeout' => (int) : value in seconds which will be used for connecting to the daemon. Think twice
+     *                      before changing the default value of 1 second - you can lose all the
+     *                      advantages of caching if your connection is too slow.
+     * 'retry_interval' => (int) : controls how often a failed server will be retried, the default value
+     *                             is 15 seconds. Setting this parameter to -1 disables automatic retry.
+     * 'status' => (bool) : controls if the server should be flagged as online.
+     * 'failure_callback' => (callback) : Allows the user to specify a callback function to run upon
+     *                                    encountering an error. The callback is run before failover
+     *                                    is attempted. The function takes two parameters, the hostname
+     *                                    and port of the failed server.
+     *
+     * =====> (boolean) compression :
+     * true if you want to use on-the-fly compression
+     *
+     * =====> (boolean) compatibility :
+     * true if you use old memcache server or extension
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'servers' => array(array(
+            'host' => self::DEFAULT_HOST,
+            'port' => self::DEFAULT_PORT,
+            'persistent' => self::DEFAULT_PERSISTENT,
+            'weight'  => self::DEFAULT_WEIGHT,
+            'timeout' => self::DEFAULT_TIMEOUT,
+            'retry_interval' => self::DEFAULT_RETRY_INTERVAL,
+            'status' => self::DEFAULT_STATUS,
+            'failure_callback' => self::DEFAULT_FAILURE_CALLBACK
+        )),
+        'compression' => false,
+        'compatibility' => false,
+    );
+
+    /**
+     * Memcache object
+     *
+     * @var mixed memcache object
+     */
+    protected $_memcache = null;
+
+    /**
+     * Constructor
+     *
+     * @param array $options associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!extension_loaded('memcache')) {
+            Zend_Cache::throwException('The memcache extension must be loaded for using this backend !');
+        }
+        parent::__construct($options);
+        if (isset($this->_options['servers'])) {
+            $value= $this->_options['servers'];
+            if (isset($value['host'])) {
+                // in this case, $value seems to be a simple associative array (one server only)
+                $value = array(0 => $value); // let's transform it into a classical array of associative arrays
+            }
+            $this->setOption('servers', $value);
+        }
+        $this->_memcache = new Memcache;
+        foreach ($this->_options['servers'] as $server) {
+            if (!array_key_exists('port', $server)) {
+                $server['port'] = self::DEFAULT_PORT;
+            }
+            if (!array_key_exists('persistent', $server)) {
+                $server['persistent'] = self::DEFAULT_PERSISTENT;
+            }
+            if (!array_key_exists('weight', $server)) {
+                $server['weight'] = self::DEFAULT_WEIGHT;
+            }
+            if (!array_key_exists('timeout', $server)) {
+                $server['timeout'] = self::DEFAULT_TIMEOUT;
+            }
+            if (!array_key_exists('retry_interval', $server)) {
+                $server['retry_interval'] = self::DEFAULT_RETRY_INTERVAL;
+            }
+            if (!array_key_exists('status', $server)) {
+                $server['status'] = self::DEFAULT_STATUS;
+            }
+            if (!array_key_exists('failure_callback', $server)) {
+                $server['failure_callback'] = self::DEFAULT_FAILURE_CALLBACK;
+            }
+            if ($this->_options['compatibility']) {
+                // No status for compatibility mode (#ZF-5887)
+                $this->_memcache->addServer($server['host'], $server['port'], $server['persistent'],
+                                        $server['weight'], $server['timeout'],
+                                        $server['retry_interval']);
+            } else {
+                $this->_memcache->addServer($server['host'], $server['port'], $server['persistent'],
+                                        $server['weight'], $server['timeout'],
+                                        $server['retry_interval'],
+                                        $server['status'], $server['failure_callback']);
+            }
+        }
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (is_array($tmp) && isset($tmp[0])) {
+            return $tmp[0];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id Cache id
+     * @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (is_array($tmp)) {
+            return $tmp[1];
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data             Datas to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean True if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+        if ($this->_options['compression']) {
+            $flag = MEMCACHE_COMPRESSED;
+        } else {
+            $flag = 0;
+        }
+
+        // ZF-8856: using set because add needs a second request if item already exists
+        $result = @$this->_memcache->set($id, array($data, time(), $lifetime), $flag, $lifetime);
+
+        if (count($tags) > 0) {
+            $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        }
+
+        return $result;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        return $this->_memcache->delete($id, 0);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                return $this->_memcache->flush();
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_Memcached::clean() : CLEANING_MODE_OLD is unsupported by the Memcached backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_log(self::TAGS_UNSUPPORTED_BY_CLEAN_OF_MEMCACHED_BACKEND);
+                break;
+               default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                   break;
+        }
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return false;
+    }
+
+    /**
+     * Set the frontend directives
+     *
+     * @param  array $directives Assoc of directives
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setDirectives($directives)
+    {
+        parent::setDirectives($directives);
+        $lifetime = $this->getLifetime(false);
+        if ($lifetime > 2592000) {
+            // #ZF-3490 : For the memcached backend, there is a lifetime limit of 30 days (2592000 seconds)
+            $this->_log('memcached backend has a limit of 30 days (2592000 seconds) for the lifetime');
+        }
+        if ($lifetime === null) {
+            // #ZF-4614 : we tranform null to zero to get the maximal lifetime
+            parent::setDirectives(array('lifetime' => 0));
+        }
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        $this->_log("Zend_Cache_Backend_Memcached::save() : getting the list of cache ids is unsupported by the Memcache backend");
+        return array();
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_MEMCACHED_BACKEND);
+        return array();
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @throws Zend_Cache_Exception
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        $mems = $this->_memcache->getExtendedStats();
+
+        $memSize = null;
+        $memUsed = null;
+        foreach ($mems as $key => $mem) {
+            if ($mem === false) {
+                $this->_log('can\'t get stat from ' . $key);
+                continue;
+            }
+
+            $eachSize = $mem['limit_maxbytes'];
+            $eachUsed = $mem['bytes'];
+            if ($eachUsed > $eachSize) {
+                $eachUsed = $eachSize;
+            }
+
+            $memSize += $eachSize;
+            $memUsed += $eachUsed;
+        }
+
+        if ($memSize === null || $memUsed === null) {
+            Zend_Cache::throwException('Can\'t get filling percentage');
+        }
+
+        return ((int) (100. * ($memUsed / $memSize)));
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        $tmp = $this->_memcache->get($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                // because this record is only with 1.7 release
+                // if old cache records are still there...
+                return false;
+            }
+            $lifetime = $tmp[2];
+            return array(
+                'expire' => $mtime + $lifetime,
+                'tags' => array(),
+                'mtime' => $mtime
+            );
+        }
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        if ($this->_options['compression']) {
+            $flag = MEMCACHE_COMPRESSED;
+        } else {
+            $flag = 0;
+        }
+        $tmp = $this->_memcache->get($id);
+        if (is_array($tmp)) {
+            $data = $tmp[0];
+            $mtime = $tmp[1];
+            if (!isset($tmp[2])) {
+                // because this record is only with 1.7 release
+                // if old cache records are still there...
+                return false;
+            }
+            $lifetime = $tmp[2];
+            $newLifetime = $lifetime - (time() - $mtime) + $extraLifetime;
+            if ($newLifetime <=0) {
+                return false;
+            }
+            // #ZF-5702 : we try replace() first becase set() seems to be slower
+            if (!($result = $this->_memcache->replace($id, array($data, time(), $newLifetime), $flag, $newLifetime))) {
+                $result = $this->_memcache->set($id, array($data, time(), $newLifetime), $flag, $newLifetime);
+            }
+            return $result;
+        }
+        return false;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => false,
+            'tags' => false,
+            'expired_read' => false,
+            'priority' => false,
+            'infinite_lifetime' => false,
+            'get_list' => false
+        );
+    }
+
+}

libraries/Zend/Cache/Backend/Sqlite.php

@@ -0,0 +1,679 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Sqlite.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend/ExtendedInterface.php';
+
+/**
+ * @see Zend_Cache_Backend
+ */
+require_once 'Zend/Cache/Backend.php';
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Sqlite extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Available options
+     *
+     * =====> (string) cache_db_complete_path :
+     * - the complete path (filename included) of the SQLITE database
+     *
+     * ====> (int) automatic_vacuum_factor :
+     * - Disable / Tune the automatic vacuum process
+     * - The automatic vacuum process defragment the database file (and make it smaller)
+     *   when a clean() or delete() is called
+     *     0               => no automatic vacuum
+     *     1               => systematic vacuum (when delete() or clean() methods are called)
+     *     x (integer) > 1 => automatic vacuum randomly 1 times on x clean() or delete()
+     *
+     * @var array Available options
+     */
+    protected $_options = array(
+        'cache_db_complete_path' => null,
+        'automatic_vacuum_factor' => 10
+    );
+
+    /**
+     * DB ressource
+     *
+     * @var mixed $_db
+     */
+    private $_db = null;
+
+    /**
+     * Boolean to store if the structure has benn checked or not
+     *
+     * @var boolean $_structureChecked
+     */
+    private $_structureChecked = false;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        parent::__construct($options);
+        if ($this->_options['cache_db_complete_path'] === null) {
+            Zend_Cache::throwException('cache_db_complete_path option has to set');
+        }
+        if (!extension_loaded('sqlite')) {
+            Zend_Cache::throwException("Cannot use SQLite storage because the 'sqlite' extension is not loaded in the current PHP environment");
+        }
+        $this->_getConnection();
+    }
+
+    /**
+     * Destructor
+     *
+     * @return void
+     */
+    public function __destruct()
+    {
+        @sqlite_close($this->_getConnection());
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false Cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $this->_checkAndBuildStructure();
+        $sql = "SELECT content FROM cache WHERE id='$id'";
+        if (!$doNotTestCacheValidity) {
+            $sql = $sql . " AND (expire=0 OR expire>" . time() . ')';
+        }
+        $result = $this->_query($sql);
+        $row = @sqlite_fetch_array($result);
+        if ($row) {
+            return $row['content'];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param string $id Cache id
+     * @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $this->_checkAndBuildStructure();
+        $sql = "SELECT lastModified FROM cache WHERE id='$id' AND (expire=0 OR expire>" . time() . ')';
+        $result = $this->_query($sql);
+        $row = @sqlite_fetch_array($result);
+        if ($row) {
+            return ((int) $row['lastModified']);
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data             Datas to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $this->_checkAndBuildStructure();
+        $lifetime = $this->getLifetime($specificLifetime);
+        $data = @sqlite_escape_string($data);
+        $mktime = time();
+        if ($lifetime === null) {
+            $expire = 0;
+        } else {
+            $expire = $mktime + $lifetime;
+        }
+        $this->_query("DELETE FROM cache WHERE id='$id'");
+        $sql = "INSERT INTO cache (id, content, lastModified, expire) VALUES ('$id', '$data', $mktime, $expire)";
+        $res = $this->_query($sql);
+        if (!$res) {
+            $this->_log("Zend_Cache_Backend_Sqlite::save() : impossible to store the cache id=$id");
+            return false;
+        }
+        $res = true;
+        foreach ($tags as $tag) {
+            $res = $this->_registerTag($id, $tag) && $res;
+        }
+        return $res;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        $this->_checkAndBuildStructure();
+        $res = $this->_query("SELECT COUNT(*) AS nbr FROM cache WHERE id='$id'");
+        $result1 = @sqlite_fetch_single($res);
+        $result2 = $this->_query("DELETE FROM cache WHERE id='$id'");
+        $result3 = $this->_query("DELETE FROM tag WHERE id='$id'");
+        $this->_automaticVacuum();
+        return ($result1 && $result2 && $result3);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean True if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        $this->_checkAndBuildStructure();
+        $return = $this->_clean($mode, $tags);
+        $this->_automaticVacuum();
+        return $return;
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        $this->_checkAndBuildStructure();
+        $res = $this->_query("SELECT id FROM cache WHERE (expire=0 OR expire>" . time() . ")");
+        $result = array();
+        while ($id = @sqlite_fetch_single($res)) {
+            $result[] = $id;
+        }
+        return $result;
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        $this->_checkAndBuildStructure();
+        $res = $this->_query("SELECT DISTINCT(name) AS name FROM tag");
+        $result = array();
+        while ($id = @sqlite_fetch_single($res)) {
+            $result[] = $id;
+        }
+        return $result;
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        $first = true;
+        $ids = array();
+        foreach ($tags as $tag) {
+            $res = $this->_query("SELECT DISTINCT(id) AS id FROM tag WHERE name='$tag'");
+            if (!$res) {
+                return array();
+            }
+            $rows = @sqlite_fetch_all($res, SQLITE_ASSOC);
+            $ids2 = array();
+            foreach ($rows as $row) {
+                $ids2[] = $row['id'];
+            }
+            if ($first) {
+                $ids = $ids2;
+                $first = false;
+            } else {
+                $ids = array_intersect($ids, $ids2);
+            }
+        }
+        $result = array();
+        foreach ($ids as $id) {
+            $result[] = $id;
+        }
+        return $result;
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        $res = $this->_query("SELECT id FROM cache");
+        $rows = @sqlite_fetch_all($res, SQLITE_ASSOC);
+        $result = array();
+        foreach ($rows as $row) {
+            $id = $row['id'];
+            $matching = false;
+            foreach ($tags as $tag) {
+                $res = $this->_query("SELECT COUNT(*) AS nbr FROM tag WHERE name='$tag' AND id='$id'");
+                if (!$res) {
+                    return array();
+                }
+                $nbr = (int) @sqlite_fetch_single($res);
+                if ($nbr > 0) {
+                    $matching = true;
+                }
+            }
+            if (!$matching) {
+                $result[] = $id;
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        $first = true;
+        $ids = array();
+        foreach ($tags as $tag) {
+            $res = $this->_query("SELECT DISTINCT(id) AS id FROM tag WHERE name='$tag'");
+            if (!$res) {
+                return array();
+            }
+            $rows = @sqlite_fetch_all($res, SQLITE_ASSOC);
+            $ids2 = array();
+            foreach ($rows as $row) {
+                $ids2[] = $row['id'];
+            }
+            if ($first) {
+                $ids = $ids2;
+                $first = false;
+            } else {
+                $ids = array_merge($ids, $ids2);
+            }
+        }
+        $result = array();
+        foreach ($ids as $id) {
+            $result[] = $id;
+        }
+        return $result;
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @throws Zend_Cache_Exception
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        $dir = dirname($this->_options['cache_db_complete_path']);
+        $free = disk_free_space($dir);
+        $total = disk_total_space($dir);
+        if ($total == 0) {
+            Zend_Cache::throwException('can\'t get disk_total_space');
+        } else {
+            if ($free >= $total) {
+                return 100;
+            }
+            return ((int) (100. * ($total - $free) / $total));
+        }
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        $tags = array();
+        $res = $this->_query("SELECT name FROM tag WHERE id='$id'");
+        if ($res) {
+            $rows = @sqlite_fetch_all($res, SQLITE_ASSOC);
+            foreach ($rows as $row) {
+                $tags[] = $row['name'];
+            }
+        }
+        $this->_query('CREATE TABLE cache (id TEXT PRIMARY KEY, content BLOB, lastModified INTEGER, expire INTEGER)');
+        $res = $this->_query("SELECT lastModified,expire FROM cache WHERE id='$id'");
+        if (!$res) {
+            return false;
+        }
+        $row = @sqlite_fetch_array($res, SQLITE_ASSOC);
+        return array(
+            'tags' => $tags,
+            'mtime' => $row['lastModified'],
+            'expire' => $row['expire']
+        );
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        $sql = "SELECT expire FROM cache WHERE id='$id' AND (expire=0 OR expire>" . time() . ')';
+        $res = $this->_query($sql);
+        if (!$res) {
+            return false;
+        }
+        $expire = @sqlite_fetch_single($res);
+        $newExpire = $expire + $extraLifetime;
+        $res = $this->_query("UPDATE cache SET lastModified=" . time() . ", expire=$newExpire WHERE id='$id'");
+        if ($res) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => true,
+            'tags' => true,
+            'expired_read' => true,
+            'priority' => false,
+            'infinite_lifetime' => true,
+            'get_list' => true
+        );
+    }
+
+    /**
+     * PUBLIC METHOD FOR UNIT TESTING ONLY !
+     *
+     * Force a cache record to expire
+     *
+     * @param string $id Cache id
+     */
+    public function ___expire($id)
+    {
+        $time = time() - 1;
+        $this->_query("UPDATE cache SET lastModified=$time, expire=$time WHERE id='$id'");
+    }
+
+    /**
+     * Return the connection resource
+     *
+     * If we are not connected, the connection is made
+     *
+     * @throws Zend_Cache_Exception
+     * @return resource Connection resource
+     */
+    private function _getConnection()
+    {
+        if (is_resource($this->_db)) {
+            return $this->_db;
+        } else {
+            $this->_db = @sqlite_open($this->_options['cache_db_complete_path']);
+            if (!(is_resource($this->_db))) {
+                Zend_Cache::throwException("Impossible to open " . $this->_options['cache_db_complete_path'] . " cache DB file");
+            }
+            return $this->_db;
+        }
+    }
+
+    /**
+     * Execute an SQL query silently
+     *
+     * @param string $query SQL query
+     * @return mixed|false query results
+     */
+    private function _query($query)
+    {
+        $db = $this->_getConnection();
+        if (is_resource($db)) {
+            $res = @sqlite_query($db, $query);
+            if ($res === false) {
+                return false;
+            } else {
+                return $res;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Deal with the automatic vacuum process
+     *
+     * @return void
+     */
+    private function _automaticVacuum()
+    {
+        if ($this->_options['automatic_vacuum_factor'] > 0) {
+            $rand = rand(1, $this->_options['automatic_vacuum_factor']);
+            if ($rand == 1) {
+                $this->_query('VACUUM');
+                @sqlite_close($this->_getConnection());
+            }
+        }
+    }
+
+    /**
+     * Register a cache id with the given tag
+     *
+     * @param  string $id  Cache id
+     * @param  string $tag Tag
+     * @return boolean True if no problem
+     */
+    private function _registerTag($id, $tag) {
+        $res = $this->_query("DELETE FROM TAG WHERE name='$tag' AND id='$id'");
+        $res = $this->_query("INSERT INTO tag (name, id) VALUES ('$tag', '$id')");
+        if (!$res) {
+            $this->_log("Zend_Cache_Backend_Sqlite::_registerTag() : impossible to register tag=$tag on id=$id");
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Build the database structure
+     *
+     * @return false
+     */
+    private function _buildStructure()
+    {
+        $this->_query('DROP INDEX tag_id_index');
+        $this->_query('DROP INDEX tag_name_index');
+        $this->_query('DROP INDEX cache_id_expire_index');
+        $this->_query('DROP TABLE version');
+        $this->_query('DROP TABLE cache');
+        $this->_query('DROP TABLE tag');
+        $this->_query('CREATE TABLE version (num INTEGER PRIMARY KEY)');
+        $this->_query('CREATE TABLE cache (id TEXT PRIMARY KEY, content BLOB, lastModified INTEGER, expire INTEGER)');
+        $this->_query('CREATE TABLE tag (name TEXT, id TEXT)');
+        $this->_query('CREATE INDEX tag_id_index ON tag(id)');
+        $this->_query('CREATE INDEX tag_name_index ON tag(name)');
+        $this->_query('CREATE INDEX cache_id_expire_index ON cache(id, expire)');
+        $this->_query('INSERT INTO version (num) VALUES (1)');
+    }
+
+    /**
+     * Check if the database structure is ok (with the good version)
+     *
+     * @return boolean True if ok
+     */
+    private function _checkStructureVersion()
+    {
+        $result = $this->_query("SELECT num FROM version");
+        if (!$result) return false;
+        $row = @sqlite_fetch_array($result);
+        if (!$row) {
+            return false;
+        }
+        if (((int) $row['num']) != 1) {
+            // old cache structure
+            $this->_log('Zend_Cache_Backend_Sqlite::_checkStructureVersion() : old cache structure version detected => the cache is going to be dropped');
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean True if no problem
+     */
+    private function _clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                $res1 = $this->_query('DELETE FROM cache');
+                $res2 = $this->_query('DELETE FROM tag');
+                return $res1 && $res2;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $mktime = time();
+                $res1 = $this->_query("DELETE FROM tag WHERE id IN (SELECT id FROM cache WHERE expire>0 AND expire<=$mktime)");
+                $res2 = $this->_query("DELETE FROM cache WHERE expire>0 AND expire<=$mktime");
+                return $res1 && $res2;
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+                $ids = $this->getIdsMatchingTags($tags);
+                $result = true;
+                foreach ($ids as $id) {
+                    $result = $this->remove($id) && $result;
+                }
+                return $result;
+                break;
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+                $ids = $this->getIdsNotMatchingTags($tags);
+                $result = true;
+                foreach ($ids as $id) {
+                    $result = $this->remove($id) && $result;
+                }
+                return $result;
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $ids = $this->getIdsMatchingAnyTags($tags);
+                $result = true;
+                foreach ($ids as $id) {
+                    $result = $this->remove($id) && $result;
+                }
+                return $result;
+                break;
+            default:
+                break;
+        }
+        return false;
+    }
+
+    /**
+     * Check if the database structure is ok (with the good version), if no : build it
+     *
+     * @throws Zend_Cache_Exception
+     * @return boolean True if ok
+     */
+    private function _checkAndBuildStructure()
+    {
+        if (!($this->_structureChecked)) {
+            if (!$this->_checkStructureVersion()) {
+                $this->_buildStructure();
+                if (!$this->_checkStructureVersion()) {
+                    Zend_Cache::throwException("Impossible to build cache structure in " . $this->_options['cache_db_complete_path']);
+                }
+            }
+            $this->_structureChecked = true;
+        }
+        return true;
+    }
+
+}

libraries/Zend/Cache/Backend/Static.php

@@ -0,0 +1,566 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: BlackHole.php 17867 2009-08-28 09:42:11Z yoshida@zend.co.jp $
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend/Interface.php';
+
+/**
+ * @see Zend_Cache_Backend
+ */
+require_once 'Zend/Cache/Backend.php';
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Static
+    extends Zend_Cache_Backend
+    implements Zend_Cache_Backend_Interface
+{
+    const INNER_CACHE_NAME = 'zend_cache_backend_static_tagcache';
+
+    /**
+     * Static backend options
+     * @var array
+     */
+    protected $_options = array(
+        'public_dir'            => null,
+        'sub_dir'               => 'html',
+        'file_extension'        => '.html',
+        'index_filename'        => 'index',
+        'file_locking'          => true,
+        'cache_file_umask'      => 0600,
+        'cache_directory_umask' => 0700,
+        'debug_header'          => false,
+        'tag_cache'             => null,
+        'disable_caching'       => false
+    );
+
+    /**
+     * Cache for handling tags
+     * @var Zend_Cache_Core
+     */
+    protected $_tagCache = null;
+
+    /**
+     * Tagged items
+     * @var array
+     */
+    protected $_tagged = null;
+
+    /**
+     * Interceptor child method to handle the case where an Inner
+     * Cache object is being set since it's not supported by the
+     * standard backend interface
+     *
+     * @param  string $name
+     * @param  mixed $value
+     * @return Zend_Cache_Backend_Static
+     */
+    public function setOption($name, $value)
+    {
+        if ($name == 'tag_cache') {
+            $this->setInnerCache($value);
+        } else {
+            parent::setOption($name, $value);
+        }
+        return $this;
+    }
+
+    /**
+     * Retrieve any option via interception of the parent's statically held
+     * options including the local option for a tag cache.
+     *
+     * @param  string $name
+     * @return mixed
+     */
+    public function getOption($name)
+    {
+        if ($name == 'tag_cache') {
+            return $this->getInnerCache();
+        } else {
+            if (in_array($name, $this->_options)) {
+                return $this->_options[$name];
+            }
+            if ($name == 'lifetime') {
+                return parent::getLifetime();
+            }
+            return null;
+        }
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * Note : return value is always "string" (unserialization is done by the core not by the backend)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        if (empty($id)) {
+            $id = $this->_detectId();
+        } else {
+            $id = $this->_decodeId($id);
+        }
+        if (!$this->_verifyPath($id)) {
+            Zend_Cache::throwException('Invalid cache id: does not match expected public_dir path');
+        }
+        if ($doNotTestCacheValidity) {
+            $this->_log("Zend_Cache_Backend_Static::load() : \$doNotTestCacheValidity=true is unsupported by the Static backend");
+        }
+
+        $fileName = basename($id);
+        if (empty($fileName)) {
+            $fileName = $this->_options['index_filename'];
+        }
+        $pathName = $this->_options['public_dir'] . dirname($id);
+        $file     = rtrim($pathName, '/') . '/' . $fileName . $this->_options['file_extension'];
+        if (file_exists($file)) {
+            $content = file_get_contents($file);
+            return $content;
+        }
+
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return bool
+     */
+    public function test($id)
+    {
+        $id = $this->_decodeId($id);
+        if (!$this->_verifyPath($id)) {
+            Zend_Cache::throwException('Invalid cache id: does not match expected public_dir path');
+        }
+
+        $fileName = basename($id);
+        if (empty($fileName)) {
+            $fileName = $this->_options['index_filename'];
+        }
+        if (is_null($this->_tagged) && $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME)) {
+            $this->_tagged = $tagged;
+        } elseif (!$this->_tagged) {
+            return false;
+        }
+        $pathName = $this->_options['public_dir'] . dirname($id);
+
+        // Switch extension if needed
+        if (isset($this->_tagged[$id])) {
+            $extension = $this->_tagged[$id]['extension'];
+        } else {
+            $extension = $this->_options['file_extension'];
+        }
+        $file     = $pathName . '/' . $fileName . $extension;
+        if (file_exists($file)) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data            Datas to cache
+     * @param  string $id              Cache id
+     * @param  array $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int   $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        if ($this->_options['disable_caching']) {
+            return true;
+        }
+        $extension = null;
+        if ($this->_isSerialized($data)) {
+            $data = unserialize($data);
+            $extension = '.' . ltrim($data[1], '.');
+            $data = $data[0];
+        }
+
+        clearstatcache();
+        if (is_null($id) || strlen($id) == 0) {
+            $id = $this->_detectId();
+        } else {
+            $id = $this->_decodeId($id);
+        }
+
+        $fileName = basename($id);
+        if (empty($fileName)) {
+            $fileName = $this->_options['index_filename'];
+        }
+
+        $pathName = realpath($this->_options['public_dir']) . dirname($id);
+        $this->_createDirectoriesFor($pathName);
+
+        if (is_null($id) || strlen($id) == 0) {
+            $dataUnserialized = unserialize($data);
+            $data = $dataUnserialized['data'];
+        }
+        $ext = $this->_options['file_extension'];
+        if ($extension) $ext = $extension;
+        $file = rtrim($pathName, '/') . '/' . $fileName . $ext;
+        if ($this->_options['file_locking']) {
+            $result = file_put_contents($file, $data, LOCK_EX);
+        } else {
+            $result = file_put_contents($file, $data);
+        }
+        @chmod($file, $this->_octdec($this->_options['cache_file_umask']));
+
+        if (is_null($this->_tagged) && $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME)) {
+            $this->_tagged = $tagged;
+        } elseif (is_null($this->_tagged)) {
+            $this->_tagged = array();
+        }
+        if (!isset($this->_tagged[$id])) {
+            $this->_tagged[$id] = array();
+        }
+        if (!isset($this->_tagged[$id]['tags'])) {
+            $this->_tagged[$id]['tags'] = array();
+        }
+        $this->_tagged[$id]['tags'] = array_unique(array_merge($this->_tagged[$id]['tags'], $tags));
+        $this->_tagged[$id]['extension'] = $ext;
+        $this->getInnerCache()->save($this->_tagged, self::INNER_CACHE_NAME);
+        return (bool) $result;
+    }
+
+    /**
+     * Recursively create the directories needed to write the static file
+     */
+    protected function _createDirectoriesFor($path)
+    {
+        if ( !is_dir($path)
+          && !@mkdir($path, $this->_options['cache_directory_umask'], true)) {
+            $lastErr = error_get_last();
+            Zend_Cache::throwException("Can't create directory: {$lastErr['message']}");
+        }
+
+        /*
+        $parts = explode('/', $path);
+        $directory = '';
+        foreach ($parts as $part) {
+            $directory = rtrim($directory, '/') . '/' . $part;
+            if (!is_dir($directory)) {
+                mkdir($directory, $this->_octdec($this->_options['cache_directory_umask']));
+            }
+        }
+        */
+    }
+
+    /**
+     * Detect serialization of data (cannot predict since this is the only way
+     * to obey the interface yet pass in another parameter).
+     *
+     * In future, ZF 2.0, check if we can just avoid the interface restraints.
+     *
+     * This format is the only valid one possible for the class, so it's simple
+     * to just run a regular expression for the starting serialized format.
+     */
+    protected function _isSerialized($data)
+    {
+        return preg_match("/a:2:\{i:0;s:\d+:\"/", $data);
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        if (!$this->_verifyPath($id)) {
+            Zend_Cache::throwException('Invalid cache id: does not match expected public_dir path');
+        }
+        $fileName = basename($id);
+        if (is_null($this->_tagged) && $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME)) {
+            $this->_tagged = $tagged;
+        } elseif (!$this->_tagged) {
+            return false;
+        }
+        if (isset($this->_tagged[$id])) {
+            $extension = $this->_tagged[$id]['extension'];
+        } else {
+            $extension = $this->_options['file_extension'];
+        }
+        if (empty($fileName)) {
+            $fileName = $this->_options['index_filename'];
+        }
+        $pathName = $this->_options['public_dir'] . dirname($id);
+        $file     = realpath($pathName) . '/' . $fileName . $extension;
+        if (!file_exists($file)) {
+            return false;
+        }
+        return unlink($file);
+    }
+
+    /**
+     * Remove a cache record recursively for the given directory matching a
+     * REQUEST_URI based relative path (deletes the actual file matching this
+     * in addition to the matching directory)
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function removeRecursively($id)
+    {
+        if (!$this->_verifyPath($id)) {
+            Zend_Cache::throwException('Invalid cache id: does not match expected public_dir path');
+        }
+        $fileName = basename($id);
+        if (empty($fileName)) {
+            $fileName = $this->_options['index_filename'];
+        }
+        $pathName  = $this->_options['public_dir'] . dirname($id);
+        $file      = $pathName . '/' . $fileName . $this->_options['file_extension'];
+        $directory = $pathName . '/' . $fileName;
+        if (file_exists($directory)) {
+            if (!is_writable($directory)) {
+                return false;
+            }
+            foreach (new DirectoryIterator($directory) as $file) {
+                if (true === $file->isFile()) {
+                    if (false === unlink($file->getPathName())) {
+                        return false;
+                    }
+                }
+            }
+            rmdir(dirname($path));
+        }
+        if (file_exists($file)) {
+            if (!is_writable($file)) {
+                return false;
+            }
+            return unlink($file);
+        }
+        return true;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        $result = false;
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                if (empty($tags)) {
+                    throw new Zend_Exception('Cannot use tag matching modes as no tags were defined');
+                }
+                if (is_null($this->_tagged) && $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME)) {
+                    $this->_tagged = $tagged;
+                } elseif (!$this->_tagged) {
+                    return true;
+                }
+                foreach ($tags as $tag) {
+                    $urls = array_keys($this->_tagged);
+                    foreach ($urls as $url) {
+                        if (isset($this->_tagged[$url]['tags']) && in_array($tag, $this->_tagged[$url]['tags'])) {
+                            $this->remove($url);
+                            unset($this->_tagged[$url]);
+                        }
+                    }
+                }
+                $this->getInnerCache()->save($this->_tagged, self::INNER_CACHE_NAME);
+                $result = true;
+                break;
+            case Zend_Cache::CLEANING_MODE_ALL:
+                if (is_null($this->_tagged)) {
+                    $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME);
+                    $this->_tagged = $tagged;
+                }
+                if (is_null($this->_tagged) || empty($this->_tagged)) {
+                    return true;
+                }
+                $urls = array_keys($this->_tagged);
+                foreach ($urls as $url) {
+                    $this->remove($url);
+                    unset($this->_tagged[$url]);
+                }
+                $this->getInnerCache()->save($this->_tagged, self::INNER_CACHE_NAME);
+                $result = true;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_Static : Selected Cleaning Mode Currently Unsupported By This Backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+                if (empty($tags)) {
+                    throw new Zend_Exception('Cannot use tag matching modes as no tags were defined');
+                }
+                if (is_null($this->_tagged)) {
+                    $tagged = $this->getInnerCache()->load(self::INNER_CACHE_NAME);
+                    $this->_tagged = $tagged;
+                }
+                if (is_null($this->_tagged) || empty($this->_tagged)) {
+                    return true;
+                }
+                $urls = array_keys($this->_tagged);
+                foreach ($urls as $url) {
+                    $difference = array_diff($tags, $this->_tagged[$url]['tags']);
+                    if (count($tags) == count($difference)) {
+                        $this->remove($url);
+                        unset($this->_tagged[$url]);
+                    }
+                }
+                $this->getInnerCache()->save($this->_tagged, self::INNER_CACHE_NAME);
+                $result = true;
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+        return $result;
+    }
+
+    /**
+     * Set an Inner Cache, used here primarily to store Tags associated
+     * with caches created by this backend. Note: If Tags are lost, the cache
+     * should be completely cleaned as the mapping of tags to caches will
+     * have been irrevocably lost.
+     *
+     * @param  Zend_Cache_Core
+     * @return void
+     */
+    public function setInnerCache(Zend_Cache_Core $cache)
+    {
+        $this->_tagCache = $cache;
+        $this->_options['tag_cache'] = $cache;
+    }
+
+    /**
+     * Get the Inner Cache if set
+     *
+     * @return Zend_Cache_Core
+     */
+    public function getInnerCache()
+    {
+        if (is_null($this->_tagCache)) {
+            Zend_Cache::throwException('An Inner Cache has not been set; use setInnerCache()');
+        }
+        return $this->_tagCache;
+    }
+
+    /**
+     * Verify path exists and is non-empty
+     *
+     * @param  string $path
+     * @return bool
+     */
+    protected function _verifyPath($path)
+    {
+        $path = realpath($path);
+        $base = realpath($this->_options['public_dir']);
+        return strncmp($path, $base, strlen($base)) !== 0;
+    }
+
+    /**
+     * Determine the page to save from the request
+     *
+     * @return string
+     */
+    protected function _detectId()
+    {
+        return $_SERVER['REQUEST_URI'];
+    }
+
+    /**
+     * Validate a cache id or a tag (security, reliable filenames, reserved prefixes...)
+     *
+     * Throw an exception if a problem is found
+     *
+     * @param  string $string Cache id or tag
+     * @throws Zend_Cache_Exception
+     * @return void
+     * @deprecated Not usable until perhaps ZF 2.0
+     */
+    protected static function _validateIdOrTag($string)
+    {
+        if (!is_string($string)) {
+            Zend_Cache::throwException('Invalid id or tag : must be a string');
+        }
+
+        // Internal only checked in Frontend - not here!
+        if (substr($string, 0, 9) == 'internal-') {
+            return;
+        }
+
+        // Validation assumes no query string, fragments or scheme included - only the path
+        if (!preg_match(
+                '/^(?:\/(?:(?:%[[:xdigit:]]{2}|[A-Za-z0-9-_.!~*\'()\[\]:@&=+$,;])*)?)+$/',
+                $string
+            )
+        ) {
+            Zend_Cache::throwException("Invalid id or tag '$string' : must be a valid URL path");
+        }
+    }
+
+    /**
+     * Detect an octal string and return its octal value for file permission ops
+     * otherwise return the non-string (assumed octal or decimal int already)
+     *
+     * @param $val The potential octal in need of conversion
+     * @return int
+     */
+    protected function _octdec($val)
+    {
+        if (decoct(octdec($val)) == $val && is_string($val)) {
+            return octdec($val);
+        }
+        return $val;
+    }
+
+    /**
+     * Decode a request URI from the provided ID
+     */
+    protected function _decodeId($id)
+    {
+        return pack('H*', $id);;
+    }
+}

libraries/Zend/Cache/Backend/Test.php

@@ -0,0 +1,412 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Test.php 22504 2010-06-30 17:05:07Z mabe $
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend/ExtendedInterface.php';
+
+/**
+ * @see Zend_Cache_Backend
+ */
+require_once 'Zend/Cache/Backend.php';
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Test extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Available options
+     *
+     * @var array available options
+     */
+    protected $_options = array();
+
+    /**
+     * Frontend or Core directives
+     *
+     * @var array directives
+     */
+    protected $_directives = array();
+
+    /**
+     * Array to log actions
+     *
+     * @var array $_log
+     */
+    private $_log = array();
+
+    /**
+     * Current index for log array
+     *
+     * @var int $_index
+     */
+    private $_index = 0;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @return void
+     */
+    public function __construct($options = array())
+    {
+        $this->_addLog('construct', array($options));
+    }
+
+    /**
+     * Set the frontend directives
+     *
+     * @param  array $directives assoc of directives
+     * @return void
+     */
+    public function setDirectives($directives)
+    {
+        $this->_addLog('setDirectives', array($directives));
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * For this test backend only, if $id == 'false', then the method will return false
+     * if $id == 'serialized', the method will return a serialized array
+     * ('foo' else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string Cached datas (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $this->_addLog('get', array($id, $doNotTestCacheValidity));
+
+        if ( $id == 'false'
+          || $id == 'd8523b3ee441006261eeffa5c3d3a0a7'
+          || $id == 'e83249ea22178277d5befc2c5e2e9ace'
+          || $id == '40f649b94977c0a6e76902e2a0b43587'
+          || $id == '88161989b73a4cbfd0b701c446115a99'
+          || $id == '205fc79cba24f0f0018eb92c7c8b3ba4')
+        {
+            return false;
+        }
+        if ($id=='serialized') {
+            return serialize(array('foo'));
+        }
+        if ($id=='serialized2') {
+            return serialize(array('headers' => array(), 'data' => 'foo'));
+        }
+        if ( $id == '71769f39054f75894288e397df04e445' || $id == '615d222619fb20b527168340cebd0578'
+          || $id == '8a02d218a5165c467e7a5747cc6bd4b6' || $id == '648aca1366211d17cbf48e65dc570bee'
+          || $id == '4a923ef02d7f997ca14d56dfeae25ea7') {
+            return serialize(array('foo', 'bar'));
+        }
+        return 'foo';
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * For this test backend only, if $id == 'false', then the method will return false
+     * (123456 else)
+     *
+     * @param  string $id Cache id
+     * @return mixed|false false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $this->_addLog('test', array($id));
+        if ($id=='false') {
+            return false;
+        }
+        if (($id=='3c439c922209e2cb0b54d6deffccd75a')) {
+            return false;
+        }
+        return 123456;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * For this test backend only, if $id == 'false', then the method will return false
+     * (true else)
+     *
+     * @param  string $data             Datas to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean True if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $this->_addLog('save', array($data, $id, $tags));
+        if ($id=='false') {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * For this test backend only, if $id == 'false', then the method will return false
+     * (true else)
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        $this->_addLog('remove', array($id));
+        if ($id=='false') {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * For this test backend only, if $mode == 'false', then the method will return false
+     * (true else)
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @return boolean True if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        $this->_addLog('clean', array($mode, $tags));
+        if ($mode=='false') {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Get the last log
+     *
+     * @return string The last log
+     */
+    public function getLastLog()
+    {
+        return $this->_log[$this->_index - 1];
+    }
+
+    /**
+     * Get the log index
+     *
+     * @return int Log index
+     */
+    public function getLogIndex()
+    {
+        return $this->_index;
+    }
+
+    /**
+     * Get the complete log array
+     *
+     * @return array Complete log array
+     */
+    public function getAllLogs()
+    {
+        return $this->_log;
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return true;
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        return array(
+            'prefix_id1', 'prefix_id2'
+        );
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        return array(
+            'tag1', 'tag2'
+        );
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        if ($tags == array('tag1', 'tag2')) {
+            return array('prefix_id1', 'prefix_id2');
+        }
+
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        if ($tags == array('tag3', 'tag4')) {
+            return array('prefix_id3', 'prefix_id4');
+        }
+
+        return array();
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        if ($tags == array('tag5', 'tag6')) {
+            return array('prefix_id5', 'prefix_id6');
+        }
+
+        return array();
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        return 50;
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        return false;
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        return true;
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        return array(
+            'automatic_cleaning' => true,
+            'tags'               => true,
+            'expired_read'       => false,
+            'priority'           => true,
+            'infinite_lifetime'  => true,
+            'get_list'           => true
+        );
+    }
+
+    /**
+     * Add an event to the log array
+     *
+     * @param  string $methodName MethodName
+     * @param  array  $args       Arguments
+     * @return void
+     */
+    private function _addLog($methodName, $args)
+    {
+        $this->_log[$this->_index] = array(
+            'methodName' => $methodName,
+            'args' => $args
+        );
+        $this->_index = $this->_index + 1;
+    }
+
+}

libraries/Zend/Cache/Backend/TwoLevels.php

@@ -0,0 +1,536 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: TwoLevels.php 22737 2010-07-30 16:30:42Z andyfowler $
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_ExtendedInterface
+ */
+require_once 'Zend/Cache/Backend/ExtendedInterface.php';
+
+/**
+ * @see Zend_Cache_Backend
+ */
+require_once 'Zend/Cache/Backend.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+class Zend_Cache_Backend_TwoLevels extends Zend_Cache_Backend implements Zend_Cache_Backend_ExtendedInterface
+{
+    /**
+     * Available options
+     *
+     * =====> (string) slow_backend :
+     * - Slow backend name
+     * - Must implement the Zend_Cache_Backend_ExtendedInterface
+     * - Should provide a big storage
+     *
+     * =====> (string) fast_backend :
+     * - Flow backend name
+     * - Must implement the Zend_Cache_Backend_ExtendedInterface
+     * - Must be much faster than slow_backend
+     *
+     * =====> (array) slow_backend_options :
+     * - Slow backend options (see corresponding backend)
+     *
+     * =====> (array) fast_backend_options :
+     * - Fast backend options (see corresponding backend)
+     *
+     * =====> (int) stats_update_factor :
+     * - Disable / Tune the computation of the fast backend filling percentage
+     * - When saving a record into cache :
+     *     1               => systematic computation of the fast backend filling percentage
+     *     x (integer) > 1 => computation of the fast backend filling percentage randomly 1 times on x cache write
+     *
+     * =====> (boolean) slow_backend_custom_naming :
+     * =====> (boolean) fast_backend_custom_naming :
+     * =====> (boolean) slow_backend_autoload :
+     * =====> (boolean) fast_backend_autoload :
+     * - See Zend_Cache::factory() method
+     *
+     * =====> (boolean) auto_refresh_fast_cache
+     * - If true, auto refresh the fast cache when a cache record is hit
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'slow_backend' => 'File',
+        'fast_backend' => 'Apc',
+        'slow_backend_options' => array(),
+        'fast_backend_options' => array(),
+        'stats_update_factor' => 10,
+        'slow_backend_custom_naming' => false,
+        'fast_backend_custom_naming' => false,
+        'slow_backend_autoload' => false,
+        'fast_backend_autoload' => false,
+        'auto_refresh_fast_cache' => true
+    );
+
+    /**
+     * Slow Backend
+     *
+     * @var Zend_Cache_Backend_ExtendedInterface
+     */
+    protected $_slowBackend;
+
+    /**
+     * Fast Backend
+     *
+     * @var Zend_Cache_Backend_ExtendedInterface
+     */
+    protected $_fastBackend;
+
+    /**
+     * Cache for the fast backend filling percentage
+     *
+     * @var int
+     */
+    protected $_fastBackendFillingPercentage = null;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        parent::__construct($options);
+
+        if ($this->_options['slow_backend'] === null) {
+            Zend_Cache::throwException('slow_backend option has to set');
+        } elseif ($this->_options['slow_backend'] instanceof Zend_Cache_Backend_ExtendedInterface) {
+            $this->_slowBackend = $this->_options['slow_backend'];
+        } else {
+            $this->_slowBackend = Zend_Cache::_makeBackend(
+                $this->_options['slow_backend'],
+                $this->_options['slow_backend_options'],
+                $this->_options['slow_backend_custom_naming'],
+                $this->_options['slow_backend_autoload']
+            );
+            if (!in_array('Zend_Cache_Backend_ExtendedInterface', class_implements($this->_slowBackend))) {
+                Zend_Cache::throwException('slow_backend must implement the Zend_Cache_Backend_ExtendedInterface interface');
+            }
+        }
+
+        if ($this->_options['fast_backend'] === null) {
+            Zend_Cache::throwException('fast_backend option has to set');
+        } elseif ($this->_options['fast_backend'] instanceof Zend_Cache_Backend_ExtendedInterface) {
+            $this->_fastBackend = $this->_options['fast_backend'];
+        } else {
+            $this->_fastBackend = Zend_Cache::_makeBackend(
+                $this->_options['fast_backend'],
+                $this->_options['fast_backend_options'],
+                $this->_options['fast_backend_custom_naming'],
+                $this->_options['fast_backend_autoload']
+            );
+            if (!in_array('Zend_Cache_Backend_ExtendedInterface', class_implements($this->_fastBackend))) {
+                Zend_Cache::throwException('fast_backend must implement the Zend_Cache_Backend_ExtendedInterface interface');
+            }
+        }
+
+        $this->_slowBackend->setDirectives($this->_directives);
+        $this->_fastBackend->setDirectives($this->_directives);
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed|false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $fastTest = $this->_fastBackend->test($id);
+        if ($fastTest) {
+            return $fastTest;
+        } else {
+            return $this->_slowBackend->test($id);
+        }
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data            Datas to cache
+     * @param  string $id              Cache id
+     * @param  array $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int   $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @param  int   $priority         integer between 0 (very low priority) and 10 (maximum priority) used by some particular backends
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false, $priority = 8)
+    {
+        $usage = $this->_getFastFillingPercentage('saving');
+        $boolFast = true;
+        $lifetime = $this->getLifetime($specificLifetime);
+        $preparedData = $this->_prepareData($data, $lifetime, $priority);
+        if (($priority > 0) && (10 * $priority >= $usage)) {
+            $fastLifetime = $this->_getFastLifetime($lifetime, $priority);
+            $boolFast = $this->_fastBackend->save($preparedData, $id, array(), $fastLifetime);
+            $boolSlow = $this->_slowBackend->save($preparedData, $id, $tags, $lifetime);
+        } else {
+            $boolSlow = $this->_slowBackend->save($preparedData, $id, $tags, $lifetime);
+            if ($boolSlow === true) {
+                $boolFast = $this->_fastBackend->remove($id);
+                if (!$boolFast && !$this->_fastBackend->test($id)) {
+                    // some backends return false on remove() even if the key never existed. (and it won't if fast is full)
+                    // all we care about is that the key doesn't exist now
+                    $boolFast = true;
+                }
+            }
+        }
+
+        return ($boolFast && $boolSlow);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * Note : return value is always "string" (unserialization is done by the core not by the backend)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string|false cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $res = $this->_fastBackend->load($id, $doNotTestCacheValidity);
+        if ($res === false) {
+            $res = $this->_slowBackend->load($id, $doNotTestCacheValidity);
+            if ($res === false) {
+                // there is no cache at all for this id
+                return false;
+            }
+        }
+        $array = unserialize($res);
+        // maybe, we have to refresh the fast cache ?
+        if ($this->_options['auto_refresh_fast_cache']) {
+            if ($array['priority'] == 10) {
+                // no need to refresh the fast cache with priority = 10
+                return $array['data'];
+            }
+            $newFastLifetime = $this->_getFastLifetime($array['lifetime'], $array['priority'], time() - $array['expire']);
+            // we have the time to refresh the fast cache
+            $usage = $this->_getFastFillingPercentage('loading');
+            if (($array['priority'] > 0) && (10 * $array['priority'] >= $usage)) {
+                // we can refresh the fast cache
+                $preparedData = $this->_prepareData($array['data'], $array['lifetime'], $array['priority']);
+                $this->_fastBackend->save($preparedData, $id, array(), $newFastLifetime);
+            }
+        }
+        return $array['data'];
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        $boolFast = $this->_fastBackend->remove($id);
+        $boolSlow = $this->_slowBackend->remove($id);
+        return $boolFast && $boolSlow;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => remove cache entries not {matching one of the given tags}
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                $boolFast = $this->_fastBackend->clean(Zend_Cache::CLEANING_MODE_ALL);
+                $boolSlow = $this->_slowBackend->clean(Zend_Cache::CLEANING_MODE_ALL);
+                return $boolFast && $boolSlow;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                return $this->_slowBackend->clean(Zend_Cache::CLEANING_MODE_OLD);
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+                $ids = $this->_slowBackend->getIdsMatchingTags($tags);
+                $res = true;
+                foreach ($ids as $id) {
+                    $bool = $this->remove($id);
+                    $res = $res && $bool;
+                }
+                return $res;
+                break;
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+                $ids = $this->_slowBackend->getIdsNotMatchingTags($tags);
+                $res = true;
+                foreach ($ids as $id) {
+                    $bool = $this->remove($id);
+                    $res = $res && $bool;
+                }
+                return $res;
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $ids = $this->_slowBackend->getIdsMatchingAnyTags($tags);
+                $res = true;
+                foreach ($ids as $id) {
+                    $bool = $this->remove($id);
+                    $res = $res && $bool;
+                }
+                return $res;
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        return $this->_slowBackend->getIds();
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        return $this->_slowBackend->getTags();
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        return $this->_slowBackend->getIdsMatchingTags($tags);
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        return $this->_slowBackend->getIdsNotMatchingTags($tags);
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of any matching cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        return $this->_slowBackend->getIdsMatchingAnyTags($tags);
+    }
+
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        return $this->_slowBackend->getFillingPercentage();
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array must include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        return $this->_slowBackend->getMetadatas($id);
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        return $this->_slowBackend->touch($id, $extraLifetime);
+    }
+
+    /**
+     * Return an associative array of capabilities (booleans) of the backend
+     *
+     * The array must include these keys :
+     * - automatic_cleaning (is automating cleaning necessary)
+     * - tags (are tags supported)
+     * - expired_read (is it possible to read expired cache records
+     *                 (for doNotTestCacheValidity option for example))
+     * - priority does the backend deal with priority when saving
+     * - infinite_lifetime (is infinite lifetime can work with this backend)
+     * - get_list (is it possible to get the list of cache ids and the complete list of tags)
+     *
+     * @return array associative of with capabilities
+     */
+    public function getCapabilities()
+    {
+        $slowBackendCapabilities = $this->_slowBackend->getCapabilities();
+        return array(
+            'automatic_cleaning' => $slowBackendCapabilities['automatic_cleaning'],
+            'tags' => $slowBackendCapabilities['tags'],
+            'expired_read' => $slowBackendCapabilities['expired_read'],
+            'priority' => $slowBackendCapabilities['priority'],
+            'infinite_lifetime' => $slowBackendCapabilities['infinite_lifetime'],
+            'get_list' => $slowBackendCapabilities['get_list']
+        );
+    }
+
+    /**
+     * Prepare a serialized array to store datas and metadatas informations
+     *
+     * @param string $data data to store
+     * @param int $lifetime original lifetime
+     * @param int $priority priority
+     * @return string serialize array to store into cache
+     */
+    private function _prepareData($data, $lifetime, $priority)
+    {
+        $lt = $lifetime;
+        if ($lt === null) {
+            $lt = 9999999999;
+        }
+        return serialize(array(
+            'data' => $data,
+            'lifetime' => $lifetime,
+            'expire' => time() + $lt,
+            'priority' => $priority
+        ));
+    }
+
+    /**
+     * Compute and return the lifetime for the fast backend
+     *
+     * @param int $lifetime original lifetime
+     * @param int $priority priority
+     * @param int $maxLifetime maximum lifetime
+     * @return int lifetime for the fast backend
+     */
+    private function _getFastLifetime($lifetime, $priority, $maxLifetime = null)
+    {
+        if ($lifetime === null) {
+            // if lifetime is null, we have an infinite lifetime
+            // we need to use arbitrary lifetimes
+            $fastLifetime = (int) (2592000 / (11 - $priority));
+        } else {
+            $fastLifetime = (int) ($lifetime / (11 - $priority));
+        }
+        if (($maxLifetime !== null) && ($maxLifetime >= 0)) {
+            if ($fastLifetime > $maxLifetime) {
+                return $maxLifetime;
+            }
+        }
+        return $fastLifetime;
+    }
+
+    /**
+     * PUBLIC METHOD FOR UNIT TESTING ONLY !
+     *
+     * Force a cache record to expire
+     *
+     * @param string $id cache id
+     */
+    public function ___expire($id)
+    {
+        $this->_fastBackend->remove($id);
+        $this->_slowBackend->___expire($id);
+    }
+
+    private function _getFastFillingPercentage($mode)
+    {
+
+        if ($mode == 'saving') {
+            // mode saving
+            if ($this->_fastBackendFillingPercentage === null) {
+                $this->_fastBackendFillingPercentage = $this->_fastBackend->getFillingPercentage();
+            } else {
+                $rand = rand(1, $this->_options['stats_update_factor']);
+                if ($rand == 1) {
+                    // we force a refresh
+                    $this->_fastBackendFillingPercentage = $this->_fastBackend->getFillingPercentage();
+                }
+            }
+        } else {
+            // mode loading
+            // we compute the percentage only if it's not available in cache
+            if ($this->_fastBackendFillingPercentage === null) {
+                $this->_fastBackendFillingPercentage = $this->_fastBackend->getFillingPercentage();
+            }
+        }
+        return $this->_fastBackendFillingPercentage;
+    }
+
+}

libraries/Zend/Cache/Backend/Xcache.php

@@ -0,0 +1,216 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Xcache.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend/Interface.php';
+
+/**
+ * @see Zend_Cache_Backend
+ */
+require_once 'Zend/Cache/Backend.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_Xcache extends Zend_Cache_Backend implements Zend_Cache_Backend_Interface
+{
+
+    /**
+     * Log message
+     */
+    const TAGS_UNSUPPORTED_BY_CLEAN_OF_XCACHE_BACKEND = 'Zend_Cache_Backend_Xcache::clean() : tags are unsupported by the Xcache backend';
+    const TAGS_UNSUPPORTED_BY_SAVE_OF_XCACHE_BACKEND =  'Zend_Cache_Backend_Xcache::save() : tags are unsupported by the Xcache backend';
+
+    /**
+     * Available options
+     *
+     * =====> (string) user :
+     * xcache.admin.user (necessary for the clean() method)
+     *
+     * =====> (string) password :
+     * xcache.admin.pass (clear, not MD5) (necessary for the clean() method)
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'user' => null,
+        'password' => null
+    );
+
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!extension_loaded('xcache')) {
+            Zend_Cache::throwException('The xcache extension must be loaded for using this backend !');
+        }
+        parent::__construct($options);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * WARNING $doNotTestCacheValidity=true is unsupported by the Xcache backend
+     *
+     * @param  string  $id                     cache id
+     * @param  boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string cached datas (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        if ($doNotTestCacheValidity) {
+            $this->_log("Zend_Cache_Backend_Xcache::load() : \$doNotTestCacheValidity=true is unsupported by the Xcache backend");
+        }
+        $tmp = xcache_get($id);
+        if (is_array($tmp)) {
+            return $tmp[0];
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        if (xcache_isset($id)) {
+            $tmp = xcache_get($id);
+            if (is_array($tmp)) {
+                return $tmp[1];
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param string $data datas to cache
+     * @param string $id cache id
+     * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param int $specificLifetime if != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+        $result = xcache_set($id, array($data, time()), $lifetime);
+        if (count($tags) > 0) {
+            $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_XCACHE_BACKEND);
+        }
+        return $result;
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        return xcache_unset($id);
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode clean mode
+     * @param  array  $tags array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                // Necessary because xcache_clear_cache() need basic authentification
+                $backup = array();
+                if (isset($_SERVER['PHP_AUTH_USER'])) {
+                    $backup['PHP_AUTH_USER'] = $_SERVER['PHP_AUTH_USER'];
+                }
+                if (isset($_SERVER['PHP_AUTH_PW'])) {
+                    $backup['PHP_AUTH_PW'] = $_SERVER['PHP_AUTH_PW'];
+                }
+                if ($this->_options['user']) {
+                    $_SERVER['PHP_AUTH_USER'] = $this->_options['user'];
+                }
+                if ($this->_options['password']) {
+                    $_SERVER['PHP_AUTH_PW'] = $this->_options['password'];
+                }
+                xcache_clear_cache(XC_TYPE_VAR, 0);
+                if (isset($backup['PHP_AUTH_USER'])) {
+                    $_SERVER['PHP_AUTH_USER'] = $backup['PHP_AUTH_USER'];
+                    $_SERVER['PHP_AUTH_PW'] = $backup['PHP_AUTH_PW'];
+                }
+                return true;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_Xcache::clean() : CLEANING_MODE_OLD is unsupported by the Xcache backend");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_log(self::TAGS_UNSUPPORTED_BY_CLEAN_OF_XCACHE_BACKEND);
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+
+    /**
+     * Return true if the automatic cleaning is available for the backend
+     *
+     * @return boolean
+     */
+    public function isAutomaticCleaningAvailable()
+    {
+        return false;
+    }
+
+}

libraries/Zend/Cache/Backend/ZendPlatform.php

@@ -0,0 +1,317 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: ZendPlatform.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend.php';
+
+/**
+ * @see Zend_Cache_Backend_Interface
+ */
+require_once 'Zend/Cache/Backend/Interface.php';
+
+
+/**
+ * Impementation of Zend Cache Backend using the Zend Platform (Output Content Caching)
+ *
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_ZendPlatform extends Zend_Cache_Backend implements Zend_Cache_Backend_Interface
+{
+    /**
+     * internal ZP prefix
+     */
+    const TAGS_PREFIX = "internal_ZPtag:";
+
+    /**
+     * Constructor
+     * Validate that the Zend Platform is loaded and licensed
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        if (!function_exists('accelerator_license_info')) {
+            Zend_Cache::throwException('The Zend Platform extension must be loaded for using this backend !');
+        }
+        if (!function_exists('accelerator_get_configuration')) {
+            $licenseInfo = accelerator_license_info();
+            Zend_Cache::throwException('The Zend Platform extension is not loaded correctly: '.$licenseInfo['failure_reason']);
+        }
+        $accConf = accelerator_get_configuration();
+        if (@!$accConf['output_cache_licensed']) {
+            Zend_Cache::throwException('The Zend Platform extension does not have the proper license to use content caching features');
+        }
+        if (@!$accConf['output_cache_enabled']) {
+            Zend_Cache::throwException('The Zend Platform content caching feature must be enabled for using this backend, set the \'zend_accelerator.output_cache_enabled\' directive to On !');
+        }
+        if (!is_writable($accConf['output_cache_dir'])) {
+            Zend_Cache::throwException('The cache copies directory \''. ini_get('zend_accelerator.output_cache_dir') .'\' must be writable !');
+        }
+        parent:: __construct($options);
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @return string Cached data (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        // doNotTestCacheValidity implemented by giving zero lifetime to the cache
+        if ($doNotTestCacheValidity) {
+            $lifetime = 0;
+        } else {
+            $lifetime = $this->_directives['lifetime'];
+        }
+        $res = output_cache_get($id, $lifetime);
+        if($res) {
+            return $res[0];
+        } else {
+            return false;
+        }
+    }
+
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id Cache id
+     * @return mixed|false false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     */
+    public function test($id)
+    {
+        $result = output_cache_get($id, $this->_directives['lifetime']);
+        if ($result) {
+            return $result[1];
+        }
+        return false;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param  string $data             Data to cache
+     * @param  string $id               Cache id
+     * @param  array  $tags             Array of strings, the cache record will be tagged by each string entry
+     * @param  int    $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        if (!($specificLifetime === false)) {
+            $this->_log("Zend_Cache_Backend_ZendPlatform::save() : non false specifc lifetime is unsuported for this backend");
+        }
+
+        $lifetime = $this->_directives['lifetime'];
+        $result1  = output_cache_put($id, array($data, time()));
+        $result2  = (count($tags) == 0);
+
+        foreach ($tags as $tag) {
+            $tagid = self::TAGS_PREFIX.$tag;
+            $old_tags = output_cache_get($tagid, $lifetime);
+            if ($old_tags === false) {
+                $old_tags = array();
+            }
+            $old_tags[$id] = $id;
+            output_cache_remove_key($tagid);
+            $result2 = output_cache_put($tagid, $old_tags);
+        }
+
+        return $result1 && $result2;
+    }
+
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id Cache id
+     * @return boolean True if no problem
+     */
+    public function remove($id)
+    {
+        return output_cache_remove_key($id);
+    }
+
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * Zend_Cache::CLEANING_MODE_ALL (default)    => remove all cache entries ($tags is not used)
+     * Zend_Cache::CLEANING_MODE_OLD              => remove too old cache entries ($tags is not used)
+     *                                               This mode is not supported in this backend
+     * Zend_Cache::CLEANING_MODE_MATCHING_TAG     => remove cache entries matching all given tags
+     *                                               ($tags can be an array of strings or a single string)
+     * Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => unsupported
+     * Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags
+     *                                               ($tags can be an array of strings or a single string)
+     *
+     * @param  string $mode Clean mode
+     * @param  array  $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $cache_dir = ini_get('zend_accelerator.output_cache_dir');
+                if (!$cache_dir) {
+                    return false;
+                }
+                $cache_dir .= '/.php_cache_api/';
+                return $this->_clean($cache_dir, $mode);
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+                $idlist = null;
+                foreach ($tags as $tag) {
+                    $next_idlist = output_cache_get(self::TAGS_PREFIX.$tag, $this->_directives['lifetime']);
+                    if ($idlist) {
+                        $idlist = array_intersect_assoc($idlist, $next_idlist);
+                    } else {
+                        $idlist = $next_idlist;
+                    }
+                    if (count($idlist) == 0) {
+                        // if ID list is already empty - we may skip checking other IDs
+                        $idlist = null;
+                        break;
+                    }
+                }
+                if ($idlist) {
+                    foreach ($idlist as $id) {
+                        output_cache_remove_key($id);
+                    }
+                }
+                return true;
+                break;
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+                $this->_log("Zend_Cache_Backend_ZendPlatform::clean() : CLEANING_MODE_NOT_MATCHING_TAG is not supported by the Zend Platform backend");
+                return false;
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $idlist = null;
+                foreach ($tags as $tag) {
+                    $next_idlist = output_cache_get(self::TAGS_PREFIX.$tag, $this->_directives['lifetime']);
+                    if ($idlist) {
+                        $idlist = array_merge_recursive($idlist, $next_idlist);
+                    } else {
+                        $idlist = $next_idlist;
+                    }
+                    if (count($idlist) == 0) {
+                        // if ID list is already empty - we may skip checking other IDs
+                        $idlist = null;
+                        break;
+                    }
+                }
+                if ($idlist) {
+                    foreach ($idlist as $id) {
+                        output_cache_remove_key($id);
+                    }
+                }
+                return true;
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+
+    /**
+     * Clean a directory and recursivly go over it's subdirectories
+     *
+     * Remove all the cached files that need to be cleaned (according to mode and files mtime)
+     *
+     * @param  string $dir  Path of directory ot clean
+     * @param  string $mode The same parameter as in Zend_Cache_Backend_ZendPlatform::clean()
+     * @return boolean True if ok
+     */
+    private function _clean($dir, $mode)
+    {
+        $d = @dir($dir);
+        if (!$d) {
+            return false;
+        }
+        $result = true;
+        while (false !== ($file = $d->read())) {
+            if ($file == '.' || $file == '..') {
+                continue;
+            }
+            $file = $d->path . $file;
+            if (is_dir($file)) {
+                $result = ($this->_clean($file .'/', $mode)) && ($result);
+            } else {
+                if ($mode == Zend_Cache::CLEANING_MODE_ALL) {
+                    $result = ($this->_remove($file)) && ($result);
+                } else if ($mode == Zend_Cache::CLEANING_MODE_OLD) {
+                    // Files older than lifetime get deleted from cache
+                    if ($this->_directives['lifetime'] !== null) {
+                        if ((time() - @filemtime($file)) > $this->_directives['lifetime']) {
+                            $result = ($this->_remove($file)) && ($result);
+                        }
+                    }
+                }
+            }
+        }
+        $d->close();
+        return $result;
+    }
+
+    /**
+     * Remove a file
+     *
+     * If we can't remove the file (because of locks or any problem), we will touch
+     * the file to invalidate it
+     *
+     * @param  string $file Complete file path
+     * @return boolean True if ok
+     */
+    private function _remove($file)
+    {
+        if (!@unlink($file)) {
+            # If we can't remove the file (because of locks or any problem), we will touch
+            # the file to invalidate it
+            $this->_log("Zend_Cache_Backend_ZendPlatform::_remove() : we can't remove $file => we are going to try to invalidate it");
+            if ($this->_directives['lifetime'] === null) {
+                return false;
+            }
+            if (!file_exists($file)) {
+                return false;
+            }
+            return @touch($file, time() - 2*abs($this->_directives['lifetime']));
+        }
+        return true;
+    }
+
+}

libraries/Zend/Cache/Backend/ZendServer.php

@@ -0,0 +1,207 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: ZendServer.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/** @see Zend_Cache_Backend_Interface */
+require_once 'Zend/Cache/Backend/Interface.php';
+
+/** @see Zend_Cache_Backend */
+require_once 'Zend/Cache/Backend.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+abstract class Zend_Cache_Backend_ZendServer extends Zend_Cache_Backend implements Zend_Cache_Backend_Interface
+{
+    /**
+     * Available options
+     *
+     * =====> (string) namespace :
+     * Namespace to be used for chaching operations
+     *
+     * @var array available options
+     */
+    protected $_options = array(
+        'namespace' => 'zendframework'
+    );
+
+    /**
+     * Store data
+     *
+     * @param mixed  $data        Object to store
+     * @param string $id          Cache id
+     * @param int    $timeToLive  Time to live in seconds
+     * @throws Zend_Cache_Exception
+     */
+    abstract protected function _store($data, $id, $timeToLive);
+
+    /**
+     * Fetch data
+     *
+     * @param string $id          Cache id
+     * @throws Zend_Cache_Exception
+     */
+    abstract protected function _fetch($id);
+
+    /**
+     * Unset data
+     *
+     * @param string $id          Cache id
+     */
+    abstract protected function _unset($id);
+
+    /**
+     * Clear cache
+     */
+    abstract protected function _clear();
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     cache id
+     * @param  boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested
+     * @return string cached datas (or false)
+     */
+    public function load($id, $doNotTestCacheValidity = false)
+    {
+        $tmp = $this->_fetch($id);
+        if ($tmp !== null) {
+            return $tmp;
+        }
+        return false;
+    }
+
+    /**
+     * Test if a cache is available or not (for the given id)
+     *
+     * @param  string $id cache id
+     * @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
+     * @throws Zend_Cache_Exception
+     */
+    public function test($id)
+    {
+        $tmp = $this->_fetch('internal-metadatas---' . $id);
+        if ($tmp !== false) {
+            if (!is_array($tmp) || !isset($tmp['mtime'])) {
+                Zend_Cache::throwException('Cache metadata for \'' . $id . '\' id is corrupted' );
+            }
+            return $tmp['mtime'];
+        }
+        return false;
+    }
+
+    /**
+     * Compute & return the expire time
+     *
+     * @return int expire time (unix timestamp)
+     */
+    private function _expireTime($lifetime)
+    {
+        if ($lifetime === null) {
+            return 9999999999;
+        }
+        return time() + $lifetime;
+    }
+
+    /**
+     * Save some string datas into a cache record
+     *
+     * Note : $data is always "string" (serialization is done by the
+     * core not by the backend)
+     *
+     * @param string $data datas to cache
+     * @param string $id cache id
+     * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param int $specificLifetime if != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @return boolean true if no problem
+     */
+    public function save($data, $id, $tags = array(), $specificLifetime = false)
+    {
+        $lifetime = $this->getLifetime($specificLifetime);
+        $metadatas = array(
+            'mtime' => time(),
+            'expire' => $this->_expireTime($lifetime),
+        );
+
+        if (count($tags) > 0) {
+            $this->_log('Zend_Cache_Backend_ZendServer::save() : tags are unsupported by the ZendServer backends');
+        }
+
+        return  $this->_store($data, $id, $lifetime) &&
+                $this->_store($metadatas, 'internal-metadatas---' . $id, $lifetime);
+    }
+
+    /**
+     * Remove a cache record
+     *
+     * @param  string $id cache id
+     * @return boolean true if no problem
+     */
+    public function remove($id)
+    {
+        $result1 = $this->_unset($id);
+        $result2 = $this->_unset('internal-metadatas---' . $id);
+
+        return $result1 && $result2;
+    }
+
+    /**
+     * Clean some cache records
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => unsupported
+     * 'matchingTag'    => unsupported
+     * 'notMatchingTag' => unsupported
+     * 'matchingAnyTag' => unsupported
+     *
+     * @param  string $mode clean mode
+     * @param  array  $tags array of tags
+     * @throws Zend_Cache_Exception
+     * @return boolean true if no problem
+     */
+    public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
+    {
+        switch ($mode) {
+            case Zend_Cache::CLEANING_MODE_ALL:
+                $this->_clear();
+                return true;
+                break;
+            case Zend_Cache::CLEANING_MODE_OLD:
+                $this->_log("Zend_Cache_Backend_ZendServer::clean() : CLEANING_MODE_OLD is unsupported by the Zend Server backends.");
+                break;
+            case Zend_Cache::CLEANING_MODE_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG:
+            case Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG:
+                $this->_clear();
+                $this->_log('Zend_Cache_Backend_ZendServer::clean() : tags are unsupported by the Zend Server backends.');
+                break;
+            default:
+                Zend_Cache::throwException('Invalid mode for clean() method');
+                break;
+        }
+    }
+}

libraries/Zend/Cache/Backend/ZendServer/Disk.php

@@ -0,0 +1,100 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Disk.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/** @see Zend_Cache_Backend_Interface */
+require_once 'Zend/Cache/Backend/Interface.php';
+
+/** @see Zend_Cache_Backend_ZendServer */
+require_once 'Zend/Cache/Backend/ZendServer.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_ZendServer_Disk extends Zend_Cache_Backend_ZendServer implements Zend_Cache_Backend_Interface
+{
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     */
+    public function __construct(array $options = array())
+    {
+        if (!function_exists('zend_disk_cache_store')) {
+            Zend_Cache::throwException('Zend_Cache_ZendServer_Disk backend has to be used within Zend Server environment.');
+        }
+        parent::__construct($options);
+    }
+
+    /**
+     * Store data
+     *
+     * @param mixed  $data        Object to store
+     * @param string $id          Cache id
+     * @param int    $timeToLive  Time to live in seconds
+     * @return boolean true if no problem
+     */
+    protected function _store($data, $id, $timeToLive)
+    {
+        if (zend_disk_cache_store($this->_options['namespace'] . '::' . $id,
+                                  $data,
+                                  $timeToLive) === false) {
+            $this->_log('Store operation failed.');
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Fetch data
+     *
+     * @param string $id          Cache id
+     */
+    protected function _fetch($id)
+    {
+        return zend_disk_cache_fetch($this->_options['namespace'] . '::' . $id);
+    }
+
+    /**
+     * Unset data
+     *
+     * @param string $id          Cache id
+     * @return boolean true if no problem
+     */
+    protected function _unset($id)
+    {
+        return zend_disk_cache_delete($this->_options['namespace'] . '::' . $id);
+    }
+
+    /**
+     * Clear cache
+     */
+    protected function _clear()
+    {
+        zend_disk_cache_clear($this->_options['namespace']);
+    }
+}

libraries/Zend/Cache/Backend/ZendServer/ShMem.php

@@ -0,0 +1,100 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: ShMem.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/** @see Zend_Cache_Backend_Interface */
+require_once 'Zend/Cache/Backend/Interface.php';
+
+/** @see Zend_Cache_Backend_ZendServer */
+require_once 'Zend/Cache/Backend/ZendServer.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Backend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Backend_ZendServer_ShMem extends Zend_Cache_Backend_ZendServer implements Zend_Cache_Backend_Interface
+{
+    /**
+     * Constructor
+     *
+     * @param  array $options associative array of options
+     * @throws Zend_Cache_Exception
+     */
+    public function __construct(array $options = array())
+    {
+        if (!function_exists('zend_shm_cache_store')) {
+            Zend_Cache::throwException('Zend_Cache_ZendServer_ShMem backend has to be used within Zend Server environment.');
+        }
+        parent::__construct($options);
+    }
+
+    /**
+     * Store data
+     *
+     * @param mixed  $data        Object to store
+     * @param string $id          Cache id
+     * @param int    $timeToLive  Time to live in seconds
+     *
+     */
+    protected function _store($data, $id, $timeToLive)
+    {
+        if (zend_shm_cache_store($this->_options['namespace'] . '::' . $id,
+                                  $data,
+                                  $timeToLive) === false) {
+            $this->_log('Store operation failed.');
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Fetch data
+     *
+     * @param string $id          Cache id
+     */
+    protected function _fetch($id)
+    {
+        return zend_shm_cache_fetch($this->_options['namespace'] . '::' . $id);
+    }
+
+    /**
+     * Unset data
+     *
+     * @param string $id          Cache id
+     * @return boolean true if no problem
+     */
+    protected function _unset($id)
+    {
+        return zend_shm_cache_delete($this->_options['namespace'] . '::' . $id);
+    }
+
+    /**
+     * Clear cache
+     */
+    protected function _clear()
+    {
+        zend_shm_cache_clear($this->_options['namespace']);
+    }
+}

libraries/Zend/Cache/Core.php

@@ -0,0 +1,757 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Core.php 22652 2010-07-21 04:30:24Z ramon $
+ */
+
+
+/**
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Core
+{
+    /**
+     * Messages
+     */
+    const BACKEND_NOT_SUPPORTS_TAG = 'tags are not supported by the current backend';
+    const BACKEND_NOT_IMPLEMENTS_EXTENDED_IF = 'Current backend doesn\'t implement the Zend_Cache_Backend_ExtendedInterface, so this method is not available';
+
+    /**
+     * Backend Object
+     *
+     * @var Zend_Cache_Backend_Interface $_backend
+     */
+    protected $_backend = null;
+
+    /**
+     * Available options
+     *
+     * ====> (boolean) write_control :
+     * - Enable / disable write control (the cache is read just after writing to detect corrupt entries)
+     * - Enable write control will lightly slow the cache writing but not the cache reading
+     * Write control can detect some corrupt cache files but maybe it's not a perfect control
+     *
+     * ====> (boolean) caching :
+     * - Enable / disable caching
+     * (can be very useful for the debug of cached scripts)
+     *
+     * =====> (string) cache_id_prefix :
+     * - prefix for cache ids (namespace)
+     *
+     * ====> (boolean) automatic_serialization :
+     * - Enable / disable automatic serialization
+     * - It can be used to save directly datas which aren't strings (but it's slower)
+     *
+     * ====> (int) automatic_cleaning_factor :
+     * - Disable / Tune the automatic cleaning process
+     * - The automatic cleaning process destroy too old (for the given life time)
+     *   cache files when a new cache file is written :
+     *     0               => no automatic cache cleaning
+     *     1               => systematic cache cleaning
+     *     x (integer) > 1 => automatic cleaning randomly 1 times on x cache write
+     *
+     * ====> (int) lifetime :
+     * - Cache lifetime (in seconds)
+     * - If null, the cache is valid forever.
+     *
+     * ====> (boolean) logging :
+     * - If set to true, logging is activated (but the system is slower)
+     *
+     * ====> (boolean) ignore_user_abort
+     * - If set to true, the core will set the ignore_user_abort PHP flag inside the
+     *   save() method to avoid cache corruptions in some cases (default false)
+     *
+     * @var array $_options available options
+     */
+    protected $_options = array(
+        'write_control'             => true,
+        'caching'                   => true,
+        'cache_id_prefix'           => null,
+        'automatic_serialization'   => false,
+        'automatic_cleaning_factor' => 10,
+        'lifetime'                  => 3600,
+        'logging'                   => false,
+        'logger'                    => null,
+        'ignore_user_abort'         => false
+    );
+
+    /**
+     * Array of options which have to be transfered to backend
+     *
+     * @var array $_directivesList
+     */
+    protected static $_directivesList = array('lifetime', 'logging', 'logger');
+
+    /**
+     * Not used for the core, just a sort a hint to get a common setOption() method (for the core and for frontends)
+     *
+     * @var array $_specificOptions
+     */
+    protected $_specificOptions = array();
+
+    /**
+     * Last used cache id
+     *
+     * @var string $_lastId
+     */
+    private $_lastId = null;
+
+    /**
+     * True if the backend implements Zend_Cache_Backend_ExtendedInterface
+     *
+     * @var boolean $_extendedBackend
+     */
+    protected $_extendedBackend = false;
+
+    /**
+     * Array of capabilities of the backend (only if it implements Zend_Cache_Backend_ExtendedInterface)
+     *
+     * @var array
+     */
+    protected $_backendCapabilities = array();
+
+    /**
+     * Constructor
+     *
+     * @param  array|Zend_Config $options Associative array of options or Zend_Config instance
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct($options = array())
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        }
+        if (!is_array($options)) {
+            Zend_Cache::throwException("Options passed were not an array"
+            . " or Zend_Config instance.");
+        }
+        while (list($name, $value) = each($options)) {
+            $this->setOption($name, $value);
+        }
+        $this->_loggerSanity();
+    }
+
+    /**
+     * Set options using an instance of type Zend_Config
+     *
+     * @param Zend_Config $config
+     * @return Zend_Cache_Core
+     */
+    public function setConfig(Zend_Config $config)
+    {
+        $options = $config->toArray();
+        while (list($name, $value) = each($options)) {
+            $this->setOption($name, $value);
+        }
+        return $this;
+    }
+
+    /**
+     * Set the backend
+     *
+     * @param  Zend_Cache_Backend $backendObject
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setBackend(Zend_Cache_Backend $backendObject)
+    {
+        $this->_backend= $backendObject;
+        // some options (listed in $_directivesList) have to be given
+        // to the backend too (even if they are not "backend specific")
+        $directives = array();
+        foreach (Zend_Cache_Core::$_directivesList as $directive) {
+            $directives[$directive] = $this->_options[$directive];
+        }
+        $this->_backend->setDirectives($directives);
+        if (in_array('Zend_Cache_Backend_ExtendedInterface', class_implements($this->_backend))) {
+            $this->_extendedBackend = true;
+            $this->_backendCapabilities = $this->_backend->getCapabilities();
+        }
+
+    }
+
+    /**
+     * Returns the backend
+     *
+     * @return Zend_Cache_Backend backend object
+     */
+    public function getBackend()
+    {
+        return $this->_backend;
+    }
+
+    /**
+     * Public frontend to set an option
+     *
+     * There is an additional validation (relatively to the protected _setOption method)
+     *
+     * @param  string $name  Name of the option
+     * @param  mixed  $value Value of the option
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setOption($name, $value)
+    {
+        if (!is_string($name)) {
+            Zend_Cache::throwException("Incorrect option name : $name");
+        }
+        $name = strtolower($name);
+        if (array_key_exists($name, $this->_options)) {
+            // This is a Core option
+            $this->_setOption($name, $value);
+            return;
+        }
+        if (array_key_exists($name, $this->_specificOptions)) {
+            // This a specic option of this frontend
+            $this->_specificOptions[$name] = $value;
+            return;
+        }
+    }
+
+    /**
+     * Public frontend to get an option value
+     *
+     * @param  string $name  Name of the option
+     * @throws Zend_Cache_Exception
+     * @return mixed option value
+     */
+    public function getOption($name)
+    {
+        if (is_string($name)) {
+            $name = strtolower($name);
+            if (array_key_exists($name, $this->_options)) {
+                // This is a Core option
+                return $this->_options[$name];
+            }
+            if (array_key_exists($name, $this->_specificOptions)) {
+                // This a specic option of this frontend
+                return $this->_specificOptions[$name];
+            }
+        }
+        Zend_Cache::throwException("Incorrect option name : $name");
+    }
+
+    /**
+     * Set an option
+     *
+     * @param  string $name  Name of the option
+     * @param  mixed  $value Value of the option
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    private function _setOption($name, $value)
+    {
+        if (!is_string($name) || !array_key_exists($name, $this->_options)) {
+            Zend_Cache::throwException("Incorrect option name : $name");
+        }
+        if ($name == 'lifetime' && empty($value)) {
+            $value = null;
+        }
+        $this->_options[$name] = $value;
+    }
+
+    /**
+     * Force a new lifetime
+     *
+     * The new value is set for the core/frontend but for the backend too (directive)
+     *
+     * @param  int $newLifetime New lifetime (in seconds)
+     * @return void
+     */
+    public function setLifetime($newLifetime)
+    {
+        $this->_options['lifetime'] = $newLifetime;
+        $this->_backend->setDirectives(array(
+            'lifetime' => $newLifetime
+        ));
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @param  boolean $doNotUnserialize       Do not serialize (even if automatic_serialization is true) => for internal use
+     * @return mixed|false Cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false, $doNotUnserialize = false)
+    {
+        if (!$this->_options['caching']) {
+            return false;
+        }
+        $id = $this->_id($id); // cache id may need prefix
+        $this->_lastId = $id;
+        self::_validateIdOrTag($id);
+        $data = $this->_backend->load($id, $doNotTestCacheValidity);
+        if ($data===false) {
+            // no cache available
+            return false;
+        }
+        if ((!$doNotUnserialize) && $this->_options['automatic_serialization']) {
+            // we need to unserialize before sending the result
+            return unserialize($data);
+        }
+        return $data;
+    }
+
+    /**
+     * Test if a cache is available for the given id
+     *
+     * @param  string $id Cache id
+     * @return int|false Last modified time of cache entry if it is available, false otherwise
+     */
+    public function test($id)
+    {
+        if (!$this->_options['caching']) {
+            return false;
+        }
+        $id = $this->_id($id); // cache id may need prefix
+        self::_validateIdOrTag($id);
+        $this->_lastId = $id;
+        return $this->_backend->test($id);
+    }
+
+    /**
+     * Save some data in a cache
+     *
+     * @param  mixed $data           Data to put in cache (can be another type than string if automatic_serialization is on)
+     * @param  string $id             Cache id (if not set, the last cache id will be used)
+     * @param  array $tags           Cache tags
+     * @param  int $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @param  int   $priority         integer between 0 (very low priority) and 10 (maximum priority) used by some particular backends
+     * @throws Zend_Cache_Exception
+     * @return boolean True if no problem
+     */
+    public function save($data, $id = null, $tags = array(), $specificLifetime = false, $priority = 8)
+    {
+        if (!$this->_options['caching']) {
+            return true;
+        }
+        if ($id === null) {
+            $id = $this->_lastId;
+        } else {
+            $id = $this->_id($id);
+        }
+        self::_validateIdOrTag($id);
+        self::_validateTagsArray($tags);
+        if ($this->_options['automatic_serialization']) {
+            // we need to serialize datas before storing them
+            $data = serialize($data);
+        } else {
+            if (!is_string($data)) {
+                Zend_Cache::throwException("Datas must be string or set automatic_serialization = true");
+            }
+        }
+        // automatic cleaning
+        if ($this->_options['automatic_cleaning_factor'] > 0) {
+            $rand = rand(1, $this->_options['automatic_cleaning_factor']);
+            if ($rand==1) {
+                if ($this->_extendedBackend) {
+                    // New way
+                    if ($this->_backendCapabilities['automatic_cleaning']) {
+                        $this->clean(Zend_Cache::CLEANING_MODE_OLD);
+                    } else {
+                        $this->_log('Zend_Cache_Core::save() / automatic cleaning is not available/necessary with this backend');
+                    }
+                } else {
+                    // Deprecated way (will be removed in next major version)
+                    if (method_exists($this->_backend, 'isAutomaticCleaningAvailable') && ($this->_backend->isAutomaticCleaningAvailable())) {
+                        $this->clean(Zend_Cache::CLEANING_MODE_OLD);
+                    } else {
+                        $this->_log('Zend_Cache_Core::save() / automatic cleaning is not available/necessary with this backend');
+                    }
+                }
+            }
+        }
+        if ($this->_options['ignore_user_abort']) {
+            $abort = ignore_user_abort(true);
+        }
+        if (($this->_extendedBackend) && ($this->_backendCapabilities['priority'])) {
+            $result = $this->_backend->save($data, $id, $tags, $specificLifetime, $priority);
+        } else {
+            $result = $this->_backend->save($data, $id, $tags, $specificLifetime);
+        }
+        if ($this->_options['ignore_user_abort']) {
+            ignore_user_abort($abort);
+        }
+        if (!$result) {
+            // maybe the cache is corrupted, so we remove it !
+            if ($this->_options['logging']) {
+                $this->_log("Zend_Cache_Core::save() : impossible to save cache (id=$id)");
+            }
+            $this->remove($id);
+            return false;
+        }
+        if ($this->_options['write_control']) {
+            $data2 = $this->_backend->load($id, true);
+            if ($data!=$data2) {
+                $this->_log('Zend_Cache_Core::save() / write_control : written and read data do not match');
+                $this->_backend->remove($id);
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Remove a cache
+     *
+     * @param  string $id Cache id to remove
+     * @return boolean True if ok
+     */
+    public function remove($id)
+    {
+        if (!$this->_options['caching']) {
+            return true;
+        }
+        $id = $this->_id($id); // cache id may need prefix
+        self::_validateIdOrTag($id);
+        return $this->_backend->remove($id);
+    }
+
+    /**
+     * Clean cache entries
+     *
+     * Available modes are :
+     * 'all' (default)  => remove all cache entries ($tags is not used)
+     * 'old'            => remove too old cache entries ($tags is not used)
+     * 'matchingTag'    => remove cache entries matching all given tags
+     *                     ($tags can be an array of strings or a single string)
+     * 'notMatchingTag' => remove cache entries not matching one of the given tags
+     *                     ($tags can be an array of strings or a single string)
+     * 'matchingAnyTag' => remove cache entries matching any given tags
+     *                     ($tags can be an array of strings or a single string)
+     *
+     * @param  string       $mode
+     * @param  array|string $tags
+     * @throws Zend_Cache_Exception
+     * @return boolean True if ok
+     */
+    public function clean($mode = 'all', $tags = array())
+    {
+        if (!$this->_options['caching']) {
+            return true;
+        }
+        if (!in_array($mode, array(Zend_Cache::CLEANING_MODE_ALL,
+                                   Zend_Cache::CLEANING_MODE_OLD,
+                                   Zend_Cache::CLEANING_MODE_MATCHING_TAG,
+                                   Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG,
+                                   Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG))) {
+            Zend_Cache::throwException('Invalid cleaning mode');
+        }
+        self::_validateTagsArray($tags);
+        return $this->_backend->clean($mode, $tags);
+    }
+
+    /**
+     * Return an array of stored cache ids which match given tags
+     *
+     * In case of multiple tags, a logical AND is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching cache ids (string)
+     */
+    public function getIdsMatchingTags($tags = array())
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        if (!($this->_backendCapabilities['tags'])) {
+            Zend_Cache::throwException(self::BACKEND_NOT_SUPPORTS_TAG);
+        }
+
+        $ids = $this->_backend->getIdsMatchingTags($tags);
+
+        // we need to remove cache_id_prefix from ids (see #ZF-6178, #ZF-7600)
+        if (isset($this->_options['cache_id_prefix']) && $this->_options['cache_id_prefix'] !== '') {
+            $prefix    = & $this->_options['cache_id_prefix'];
+            $prefixLen = strlen($prefix);
+            foreach ($ids as &$id) {
+                if (strpos($id, $prefix) === 0) {
+                    $id = substr($id, $prefixLen);
+                }
+            }
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Return an array of stored cache ids which don't match given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of not matching cache ids (string)
+     */
+    public function getIdsNotMatchingTags($tags = array())
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        if (!($this->_backendCapabilities['tags'])) {
+            Zend_Cache::throwException(self::BACKEND_NOT_SUPPORTS_TAG);
+        }
+
+        $ids = $this->_backend->getIdsNotMatchingTags($tags);
+
+        // we need to remove cache_id_prefix from ids (see #ZF-6178, #ZF-7600)
+        if (isset($this->_options['cache_id_prefix']) && $this->_options['cache_id_prefix'] !== '') {
+            $prefix    = & $this->_options['cache_id_prefix'];
+            $prefixLen = strlen($prefix);
+            foreach ($ids as &$id) {
+                if (strpos($id, $prefix) === 0) {
+                    $id = substr($id, $prefixLen);
+                }
+            }
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Return an array of stored cache ids which match any given tags
+     *
+     * In case of multiple tags, a logical OR is made between tags
+     *
+     * @param array $tags array of tags
+     * @return array array of matching any cache ids (string)
+     */
+    public function getIdsMatchingAnyTags($tags = array())
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        if (!($this->_backendCapabilities['tags'])) {
+            Zend_Cache::throwException(self::BACKEND_NOT_SUPPORTS_TAG);
+        }
+
+        $ids = $this->_backend->getIdsMatchingAnyTags($tags);
+
+        // we need to remove cache_id_prefix from ids (see #ZF-6178, #ZF-7600)
+        if (isset($this->_options['cache_id_prefix']) && $this->_options['cache_id_prefix'] !== '') {
+            $prefix    = & $this->_options['cache_id_prefix'];
+            $prefixLen = strlen($prefix);
+            foreach ($ids as &$id) {
+                if (strpos($id, $prefix) === 0) {
+                    $id = substr($id, $prefixLen);
+                }
+            }
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Return an array of stored cache ids
+     *
+     * @return array array of stored cache ids (string)
+     */
+    public function getIds()
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+
+        $ids = $this->_backend->getIds();
+
+        // we need to remove cache_id_prefix from ids (see #ZF-6178, #ZF-7600)
+        if (isset($this->_options['cache_id_prefix']) && $this->_options['cache_id_prefix'] !== '') {
+            $prefix    = & $this->_options['cache_id_prefix'];
+            $prefixLen = strlen($prefix);
+            foreach ($ids as &$id) {
+                if (strpos($id, $prefix) === 0) {
+                    $id = substr($id, $prefixLen);
+                }
+            }
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Return an array of stored tags
+     *
+     * @return array array of stored tags (string)
+     */
+    public function getTags()
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        if (!($this->_backendCapabilities['tags'])) {
+            Zend_Cache::throwException(self::BACKEND_NOT_SUPPORTS_TAG);
+        }
+        return $this->_backend->getTags();
+    }
+
+    /**
+     * Return the filling percentage of the backend storage
+     *
+     * @return int integer between 0 and 100
+     */
+    public function getFillingPercentage()
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        return $this->_backend->getFillingPercentage();
+    }
+
+    /**
+     * Return an array of metadatas for the given cache id
+     *
+     * The array will include these keys :
+     * - expire : the expire timestamp
+     * - tags : a string array of tags
+     * - mtime : timestamp of last modification time
+     *
+     * @param string $id cache id
+     * @return array array of metadatas (false if the cache id is not found)
+     */
+    public function getMetadatas($id)
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        $id = $this->_id($id); // cache id may need prefix
+        return $this->_backend->getMetadatas($id);
+    }
+
+    /**
+     * Give (if possible) an extra lifetime to the given cache id
+     *
+     * @param string $id cache id
+     * @param int $extraLifetime
+     * @return boolean true if ok
+     */
+    public function touch($id, $extraLifetime)
+    {
+        if (!$this->_extendedBackend) {
+            Zend_Cache::throwException(self::BACKEND_NOT_IMPLEMENTS_EXTENDED_IF);
+        }
+        $id = $this->_id($id); // cache id may need prefix
+        return $this->_backend->touch($id, $extraLifetime);
+    }
+
+    /**
+     * Validate a cache id or a tag (security, reliable filenames, reserved prefixes...)
+     *
+     * Throw an exception if a problem is found
+     *
+     * @param  string $string Cache id or tag
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected static function _validateIdOrTag($string)
+    {
+        if (!is_string($string)) {
+            Zend_Cache::throwException('Invalid id or tag : must be a string');
+        }
+        if (substr($string, 0, 9) == 'internal-') {
+            Zend_Cache::throwException('"internal-*" ids or tags are reserved');
+        }
+        if (!preg_match('~^[a-zA-Z0-9_]+$~D', $string)) {
+            Zend_Cache::throwException("Invalid id or tag '$string' : must use only [a-zA-Z0-9_]");
+        }
+    }
+
+    /**
+     * Validate a tags array (security, reliable filenames, reserved prefixes...)
+     *
+     * Throw an exception if a problem is found
+     *
+     * @param  array $tags Array of tags
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected static function _validateTagsArray($tags)
+    {
+        if (!is_array($tags)) {
+            Zend_Cache::throwException('Invalid tags array : must be an array');
+        }
+        foreach($tags as $tag) {
+            self::_validateIdOrTag($tag);
+        }
+        reset($tags);
+    }
+
+    /**
+     * Make sure if we enable logging that the Zend_Log class
+     * is available.
+     * Create a default log object if none is set.
+     *
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _loggerSanity()
+    {
+        if (!isset($this->_options['logging']) || !$this->_options['logging']) {
+            return;
+        }
+
+        if (isset($this->_options['logger']) && $this->_options['logger'] instanceof Zend_Log) {
+            return;
+        }
+
+        // Create a default logger to the standard output stream
+        require_once 'Zend/Log/Writer/Stream.php';
+        require_once 'Zend/Log.php';
+        $logger = new Zend_Log(new Zend_Log_Writer_Stream('php://output'));
+        $this->_options['logger'] = $logger;
+    }
+
+    /**
+     * Log a message at the WARN (4) priority.
+     *
+     * @param string $message
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _log($message, $priority = 4)
+    {
+        if (!$this->_options['logging']) {
+            return;
+        }
+        if (!(isset($this->_options['logger']) || $this->_options['logger'] instanceof Zend_Log)) {
+            Zend_Cache::throwException('Logging is enabled but logger is not set');
+        }
+        $logger = $this->_options['logger'];
+        $logger->log($message, $priority);
+    }
+
+    /**
+     * Make and return a cache id
+     *
+     * Checks 'cache_id_prefix' and returns new id with prefix or simply the id if null
+     *
+     * @param  string $id Cache id
+     * @return string Cache id (with or without prefix)
+     */
+    protected function _id($id)
+    {
+        if (($id !== null) && isset($this->_options['cache_id_prefix'])) {
+            return $this->_options['cache_id_prefix'] . $id; // return with prefix
+        }
+        return $id; // no prefix, just return the $id passed
+    }
+
+}

libraries/Zend/Cache/Exception.php

@@ -0,0 +1,32 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Exception.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * @see Zend_Exception
+ */
+require_once 'Zend/Exception.php';
+
+/**
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Exception extends Zend_Exception {}

libraries/Zend/Cache/Frontend/Capture.php

@@ -0,0 +1,87 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+require_once 'Zend/Cache/Core.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_Capture extends Zend_Cache_Core
+{
+    /**
+     * Page identifiers
+     * @var array
+     */
+    protected $_idStack = array();
+
+    /**
+     * Tags
+     * @var array
+     */
+    protected $_tags = array();
+    
+    protected $_extension = null;
+
+    /**
+     * Start the cache
+     *
+     * @param  string  $id Cache id
+     * @return mixed True if the cache is hit (false else) with $echoData=true (default) ; string else (datas)
+     */
+    public function start($id, array $tags, $extension = null)
+    {
+        $this->_tags = $tags;
+        $this->_extension = $extension;
+        ob_start(array($this, '_flush'));
+        ob_implicit_flush(false);
+        $this->_idStack[] = $id;
+        return false;
+    }
+
+    /**
+     * callback for output buffering
+     * (shouldn't really be called manually)
+     *
+     * @param  string $data Buffered output
+     * @return string Data to send to browser
+     */
+    public function _flush($data)
+    {
+        $id = array_pop($this->_idStack);
+        if (is_null($id)) {
+            Zend_Cache::throwException('use of _flush() without a start()');
+        }
+        if ($this->_extension) {
+            $this->save(serialize(array($data, $this->_extension)), $id, $this->_tags);
+        } else {
+            $this->save($data, $id, $this->_tags);
+        }
+        return $data;
+    }
+}

libraries/Zend/Cache/Frontend/Class.php

@@ -0,0 +1,254 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Class.php 22654 2010-07-22 18:44:13Z mabe $
+ */
+
+/**
+ * @see Zend_Cache_Core
+ */
+require_once 'Zend/Cache/Core.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_Class extends Zend_Cache_Core
+{
+    /**
+     * Available options
+     *
+     * ====> (mixed) cached_entity :
+     * - if set to a class name, we will cache an abstract class and will use only static calls
+     * - if set to an object, we will cache this object methods
+     *
+     * ====> (boolean) cache_by_default :
+     * - if true, method calls will be cached by default
+     *
+     * ====> (array) cached_methods :
+     * - an array of method names which will be cached (even if cache_by_default = false)
+     *
+     * ====> (array) non_cached_methods :
+     * - an array of method names which won't be cached (even if cache_by_default = true)
+     *
+     * @var array available options
+     */
+    protected $_specificOptions = array(
+        'cached_entity' => null,
+        'cache_by_default' => true,
+        'cached_methods' => array(),
+        'non_cached_methods' => array()
+    );
+
+    /**
+     * Tags array
+     *
+     * @var array
+     */
+    private $_tags = array();
+
+    /**
+     * SpecificLifetime value
+     *
+     * false => no specific life time
+     *
+     * @var int
+     */
+    private $_specificLifetime = false;
+
+    /**
+     * The cached object or the name of the cached abstract class
+     *
+     * @var mixed
+     */
+    private $_cachedEntity = null;
+
+     /**
+      * The class name of the cached object or cached abstract class
+      *
+      * Used to differentiate between different classes with the same method calls.
+      *
+      * @var string
+      */
+    private $_cachedEntityLabel = '';
+
+    /**
+     * Priority (used by some particular backends)
+     *
+     * @var int
+     */
+    private $_priority = 8;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        while (list($name, $value) = each($options)) {
+            $this->setOption($name, $value);
+        }
+        if ($this->_specificOptions['cached_entity'] === null) {
+            Zend_Cache::throwException('cached_entity must be set !');
+        }
+        $this->setCachedEntity($this->_specificOptions['cached_entity']);
+        $this->setOption('automatic_serialization', true);
+    }
+
+    /**
+     * Set a specific life time
+     *
+     * @param  int $specificLifetime
+     * @return void
+     */
+    public function setSpecificLifetime($specificLifetime = false)
+    {
+        $this->_specificLifetime = $specificLifetime;
+    }
+
+    /**
+     * Set the priority (used by some particular backends)
+     *
+     * @param int $priority integer between 0 (very low priority) and 10 (maximum priority)
+     */
+    public function setPriority($priority)
+    {
+        $this->_priority = $priority;
+    }
+
+    /**
+     * Public frontend to set an option
+     *
+     * Just a wrapper to get a specific behaviour for cached_entity
+     *
+     * @param  string $name  Name of the option
+     * @param  mixed  $value Value of the option
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setOption($name, $value)
+    {
+        if ($name == 'cached_entity') {
+            $this->setCachedEntity($value);
+        } else {
+            parent::setOption($name, $value);
+        }
+    }
+
+    /**
+     * Specific method to set the cachedEntity
+     *
+     * if set to a class name, we will cache an abstract class and will use only static calls
+     * if set to an object, we will cache this object methods
+     *
+     * @param mixed $cachedEntity
+     */
+    public function setCachedEntity($cachedEntity)
+    {
+        if (!is_string($cachedEntity) && !is_object($cachedEntity)) {
+            Zend_Cache::throwException('cached_entity must be an object or a class name');
+        }
+        $this->_cachedEntity = $cachedEntity;
+        $this->_specificOptions['cached_entity'] = $cachedEntity;
+        if (is_string($this->_cachedEntity)){
+            $this->_cachedEntityLabel = $this->_cachedEntity;
+        } else {
+            $ro = new ReflectionObject($this->_cachedEntity);
+            $this->_cachedEntityLabel = $ro->getName();
+        }
+    }
+
+    /**
+     * Set the cache array
+     *
+     * @param  array $tags
+     * @return void
+     */
+    public function setTagsArray($tags = array())
+    {
+        $this->_tags = $tags;
+    }
+
+    /**
+     * Main method : call the specified method or get the result from cache
+     *
+     * @param  string $name       Method name
+     * @param  array  $parameters Method parameters
+     * @return mixed Result
+     */
+    public function __call($name, $parameters)
+    {
+        $cacheBool1 = $this->_specificOptions['cache_by_default'];
+        $cacheBool2 = in_array($name, $this->_specificOptions['cached_methods']);
+        $cacheBool3 = in_array($name, $this->_specificOptions['non_cached_methods']);
+        $cache = (($cacheBool1 || $cacheBool2) && (!$cacheBool3));
+        if (!$cache) {
+            // We do not have not cache
+            return call_user_func_array(array($this->_cachedEntity, $name), $parameters);
+        }
+
+        $id = $this->_makeId($name, $parameters);
+        if ( ($rs = $this->load($id)) && isset($rs[0], $rs[1]) ) {
+            // A cache is available
+            $output = $rs[0];
+            $return = $rs[1];
+        } else {
+            // A cache is not available (or not valid for this frontend)
+            ob_start();
+            ob_implicit_flush(false);
+            $return = call_user_func_array(array($this->_cachedEntity, $name), $parameters);
+            $output = ob_get_contents();
+            ob_end_clean();
+            $data = array($output, $return);
+            $this->save($data, $id, $this->_tags, $this->_specificLifetime, $this->_priority);
+        }
+
+        echo $output;
+        return $return;
+    }
+
+    /**
+     * ZF-9970
+     *
+     * @deprecated
+     */
+    private function _makeId($name, $args)
+    {
+        return $this->makeId($name, $args);
+    }
+
+    /**
+     * Make a cache id from the method name and parameters
+     *
+     * @param  string $name Method name
+     * @param  array  $args Method parameters
+     * @return string Cache id
+     */
+    public function makeId($name, array $args = array())
+    {
+        return md5($this->_cachedEntityLabel . '__' . $name . '__' . serialize($args));
+    }
+
+}

libraries/Zend/Cache/Frontend/File.php

@@ -0,0 +1,209 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: File.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+require_once 'Zend/Cache/Core.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_File extends Zend_Cache_Core
+{
+
+    /**
+     * Consts for master_files_mode
+     */
+    const MODE_AND = 'AND';
+    const MODE_OR  = 'OR';
+
+    /**
+     * Available options
+     *
+     * ====> (string) master_file :
+     * - a complete path of the master file
+     * - deprecated (see master_files)
+     *
+     * ====> (array) master_files :
+     * - an array of complete path of master files
+     * - this option has to be set !
+     *
+     * ====> (string) master_files_mode :
+     * - Zend_Cache_Frontend_File::MODE_AND or Zend_Cache_Frontend_File::MODE_OR
+     * - if MODE_AND, then all master files have to be touched to get a cache invalidation
+     * - if MODE_OR (default), then a single touched master file is enough to get a cache invalidation
+     *
+     * ====> (boolean) ignore_missing_master_files
+     * - if set to true, missing master files are ignored silently
+     * - if set to false (default), an exception is thrown if there is a missing master file
+     * @var array available options
+     */
+    protected $_specificOptions = array(
+        'master_file' => null,
+        'master_files' => null,
+        'master_files_mode' => 'OR',
+        'ignore_missing_master_files' => false
+    );
+
+    /**
+     * Master file mtimes
+     *
+     * Array of int
+     *
+     * @var array
+     */
+    private $_masterFile_mtimes = null;
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        while (list($name, $value) = each($options)) {
+            $this->setOption($name, $value);
+        }
+        if (!isset($this->_specificOptions['master_files'])) {
+            Zend_Cache::throwException('master_files option must be set');
+        }
+    }
+
+    /**
+     * Change the master_file option
+     *
+     * @param string $masterFile the complete path and name of the master file
+     */
+    public function setMasterFiles($masterFiles)
+    {
+        clearstatcache();
+        $this->_specificOptions['master_file'] = $masterFiles[0]; // to keep a compatibility
+        $this->_specificOptions['master_files'] = $masterFiles;
+        $this->_masterFile_mtimes = array();
+        $i = 0;
+        foreach ($masterFiles as $masterFile) {
+            $this->_masterFile_mtimes[$i] = @filemtime($masterFile);
+            if ((!($this->_specificOptions['ignore_missing_master_files'])) && (!($this->_masterFile_mtimes[$i]))) {
+                Zend_Cache::throwException('Unable to read master_file : '.$masterFile);
+            }
+            $i++;
+        }
+    }
+
+    /**
+     * Change the master_file option
+     *
+     * To keep the compatibility
+     *
+     * @deprecated
+     * @param string $masterFile the complete path and name of the master file
+     */
+    public function setMasterFile($masterFile)
+    {
+          $this->setMasterFiles(array(0 => $masterFile));
+    }
+
+    /**
+     * Public frontend to set an option
+     *
+     * Just a wrapper to get a specific behaviour for master_file
+     *
+     * @param  string $name  Name of the option
+     * @param  mixed  $value Value of the option
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function setOption($name, $value)
+    {
+        if ($name == 'master_file') {
+            $this->setMasterFile($value);
+        } else if ($name == 'master_files') {
+            $this->setMasterFiles($value);
+        } else {
+            parent::setOption($name, $value);
+        }
+    }
+
+    /**
+     * Test if a cache is available for the given id and (if yes) return it (false else)
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @param  boolean $doNotUnserialize       Do not serialize (even if automatic_serialization is true) => for internal use
+     * @return mixed|false Cached datas
+     */
+    public function load($id, $doNotTestCacheValidity = false, $doNotUnserialize = false)
+    {
+        if (!$doNotTestCacheValidity) {
+            if ($this->test($id)) {
+                return parent::load($id, true, $doNotUnserialize);
+            }
+            return false;
+        }
+        return parent::load($id, true, $doNotUnserialize);
+    }
+
+    /**
+     * Test if a cache is available for the given id
+     *
+     * @param  string $id Cache id
+     * @return int|false Last modified time of cache entry if it is available, false otherwise
+     */
+    public function test($id)
+    {
+        $lastModified = parent::test($id);
+        if ($lastModified) {
+            if ($this->_specificOptions['master_files_mode'] == self::MODE_AND) {
+                // MODE_AND
+                foreach($this->_masterFile_mtimes as $masterFileMTime) {
+                    if ($masterFileMTime) {
+                        if ($lastModified > $masterFileMTime) {
+                            return $lastModified;
+                        }
+                    }
+                }
+            } else {
+                // MODE_OR
+                $res = true;
+                foreach($this->_masterFile_mtimes as $masterFileMTime) {
+                    if ($masterFileMTime) {
+                        if ($lastModified <= $masterFileMTime) {
+                            return false;
+                        }
+                    }
+                }
+                return $lastModified;
+            }
+        }
+        return false;
+    }
+
+}
+

libraries/Zend/Cache/Frontend/Function.php

@@ -0,0 +1,180 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Function.php 22654 2010-07-22 18:44:13Z mabe $
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+require_once 'Zend/Cache/Core.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_Function extends Zend_Cache_Core
+{
+    /**
+     * This frontend specific options
+     *
+     * ====> (boolean) cache_by_default :
+     * - if true, function calls will be cached by default
+     *
+     * ====> (array) cached_functions :
+     * - an array of function names which will be cached (even if cache_by_default = false)
+     *
+     * ====> (array) non_cached_functions :
+     * - an array of function names which won't be cached (even if cache_by_default = true)
+     *
+     * @var array options
+     */
+    protected $_specificOptions = array(
+        'cache_by_default' => true,
+        'cached_functions' => array(),
+        'non_cached_functions' => array()
+    );
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        while (list($name, $value) = each($options)) {
+            $this->setOption($name, $value);
+        }
+        $this->setOption('automatic_serialization', true);
+    }
+
+    /**
+     * Main method : call the specified function or get the result from cache
+     *
+     * @param  callback $callback         A valid callback
+     * @param  array    $parameters       Function parameters
+     * @param  array    $tags             Cache tags
+     * @param  int      $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @param  int      $priority         integer between 0 (very low priority) and 10 (maximum priority) used by some particular backends
+     * @return mixed Result
+     */
+    public function call($callback, array $parameters = array(), $tags = array(), $specificLifetime = false, $priority = 8)
+    {
+        if (!is_callable($callback, true, $name)) {
+            Zend_Cache::throwException('Invalid callback');
+        }
+
+        $cacheBool1 = $this->_specificOptions['cache_by_default'];
+        $cacheBool2 = in_array($name, $this->_specificOptions['cached_functions']);
+        $cacheBool3 = in_array($name, $this->_specificOptions['non_cached_functions']);
+        $cache = (($cacheBool1 || $cacheBool2) && (!$cacheBool3));
+        if (!$cache) {
+            // Caching of this callback is disabled
+            return call_user_func_array($callback, $parameters);
+        }
+
+        $id = $this->_makeId($callback, $parameters);
+        if ( ($rs = $this->load($id)) && isset($rs[0], $rs[1])) {
+            // A cache is available
+            $output = $rs[0];
+            $return = $rs[1];
+        } else {
+            // A cache is not available (or not valid for this frontend)
+            ob_start();
+            ob_implicit_flush(false);
+            $return = call_user_func_array($callback, $parameters);
+            $output = ob_get_contents();
+            ob_end_clean();
+            $data = array($output, $return);
+            $this->save($data, $id, $tags, $specificLifetime, $priority);
+        }
+
+        echo $output;
+        return $return;
+    }
+
+    /**
+     * ZF-9970
+     *
+     * @deprecated
+     */
+    private function _makeId($callback, array $args)
+    {
+        return $this->makeId($callback, $args);
+    }
+
+    /**
+     * Make a cache id from the function name and parameters
+     *
+     * @param  callback $callback A valid callback
+     * @param  array    $args     Function parameters
+     * @throws Zend_Cache_Exception
+     * @return string Cache id
+     */
+    public function makeId($callback, array $args = array())
+    {
+        if (!is_callable($callback, true, $name)) {
+            Zend_Cache::throwException('Invalid callback');
+        }
+
+        // functions, methods and classnames are case-insensitive
+        $name = strtolower($name);
+
+        // generate a unique id for object callbacks
+        if (is_object($callback)) { // Closures & __invoke
+            $object = $callback;
+        } elseif (isset($callback[0])) { // array($object, 'method')
+            $object = $callback[0];
+        }
+        if (isset($object)) {
+            try {
+                $tmp = @serialize($callback);
+            } catch (Exception $e) {
+                Zend_Cache::throwException($e->getMessage());
+            }
+            if (!$tmp) {
+                $lastErr = error_get_last();
+                Zend_Cache::throwException("Can't serialize callback object to generate id: {$lastErr['message']}");
+            }
+            $name.= '__' . $tmp;
+        }
+
+        // generate a unique id for arguments
+        $argsStr = '';
+        if ($args) {
+            try {
+                $argsStr = @serialize(array_values($args));
+            } catch (Exception $e) {
+                Zend_Cache::throwException($e->getMessage());
+            }
+            if (!$argsStr) {
+                $lastErr = error_get_last();
+                throw Zend_Cache::throwException("Can't serialize arguments to generate id: {$lastErr['message']}");
+            }
+        }
+
+        return md5($name . $argsStr);
+    }
+
+}

libraries/Zend/Cache/Frontend/Output.php

@@ -0,0 +1,106 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Output.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+require_once 'Zend/Cache/Core.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_Output extends Zend_Cache_Core
+{
+
+    private $_idStack = array();
+
+    /**
+     * Constructor
+     *
+     * @param  array $options Associative array of options
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        parent::__construct($options);
+        $this->_idStack = array();
+    }
+
+    /**
+     * Start the cache
+     *
+     * @param  string  $id                     Cache id
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @param  boolean $echoData               If set to true, datas are sent to the browser if the cache is hit (simpy returned else)
+     * @return mixed True if the cache is hit (false else) with $echoData=true (default) ; string else (datas)
+     */
+    public function start($id, $doNotTestCacheValidity = false, $echoData = true)
+    {
+        $data = $this->load($id, $doNotTestCacheValidity);
+        if ($data !== false) {
+            if ( $echoData ) {
+                echo($data);
+                return true;
+            } else {
+                return $data;
+            }
+        }
+        ob_start();
+        ob_implicit_flush(false);
+        $this->_idStack[] = $id;
+        return false;
+    }
+
+    /**
+     * Stop the cache
+     *
+     * @param  array   $tags             Tags array
+     * @param  int     $specificLifetime If != false, set a specific lifetime for this cache record (null => infinite lifetime)
+     * @param  string  $forcedDatas      If not null, force written datas with this
+     * @param  boolean $echoData         If set to true, datas are sent to the browser
+     * @param  int     $priority         integer between 0 (very low priority) and 10 (maximum priority) used by some particular backends
+     * @return void
+     */
+    public function end($tags = array(), $specificLifetime = false, $forcedDatas = null, $echoData = true, $priority = 8)
+    {
+        if ($forcedDatas === null) {
+            $data = ob_get_contents();
+            ob_end_clean();
+        } else {
+            $data =& $forcedDatas;
+        }
+        $id = array_pop($this->_idStack);
+        if ($id === null) {
+            Zend_Cache::throwException('use of end() without a start()');
+        }
+        $this->save($data, $id, $tags, $specificLifetime, $priority);
+        if ($echoData) {
+            echo($data);
+        }
+    }
+
+}

libraries/Zend/Cache/Frontend/Page.php

@@ -0,0 +1,402 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Page.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+
+/**
+ * @see Zend_Cache_Core
+ */
+require_once 'Zend/Cache/Core.php';
+
+
+/**
+ * @package    Zend_Cache
+ * @subpackage Zend_Cache_Frontend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Frontend_Page extends Zend_Cache_Core
+{
+    /**
+     * This frontend specific options
+     *
+     * ====> (boolean) http_conditional :
+     * - if true, http conditional mode is on
+     * WARNING : http_conditional OPTION IS NOT IMPLEMENTED FOR THE MOMENT (TODO)
+     *
+     * ====> (boolean) debug_header :
+     * - if true, a debug text is added before each cached pages
+     *
+     * ====> (boolean) content_type_memorization :
+     * - deprecated => use memorize_headers instead
+     * - if the Content-Type header is sent after the cache was started, the
+     *   corresponding value can be memorized and replayed when the cache is hit
+     *   (if false (default), the frontend doesn't take care of Content-Type header)
+     *
+     * ====> (array) memorize_headers :
+     * - an array of strings corresponding to some HTTP headers name. Listed headers
+     *   will be stored with cache datas and "replayed" when the cache is hit
+     *
+     * ====> (array) default_options :
+     * - an associative array of default options :
+     *     - (boolean) cache : cache is on by default if true
+     *     - (boolean) cacheWithXXXVariables  (XXXX = 'Get', 'Post', 'Session', 'Files' or 'Cookie') :
+     *       if true,  cache is still on even if there are some variables in this superglobal array
+     *       if false, cache is off if there are some variables in this superglobal array
+     *     - (boolean) makeIdWithXXXVariables (XXXX = 'Get', 'Post', 'Session', 'Files' or 'Cookie') :
+     *       if true, we have to use the content of this superglobal array to make a cache id
+     *       if false, the cache id won't be dependent of the content of this superglobal array
+     *     - (int) specific_lifetime : cache specific lifetime
+     *                                (false => global lifetime is used, null => infinite lifetime,
+     *                                 integer => this lifetime is used), this "lifetime" is probably only
+     *                                usefull when used with "regexps" array
+     *     - (array) tags : array of tags (strings)
+     *     - (int) priority : integer between 0 (very low priority) and 10 (maximum priority) used by
+     *                        some particular backends
+     *
+     * ====> (array) regexps :
+     * - an associative array to set options only for some REQUEST_URI
+     * - keys are (pcre) regexps
+     * - values are associative array with specific options to set if the regexp matchs on $_SERVER['REQUEST_URI']
+     *   (see default_options for the list of available options)
+     * - if several regexps match the $_SERVER['REQUEST_URI'], only the last one will be used
+     *
+     * @var array options
+     */
+    protected $_specificOptions = array(
+        'http_conditional' => false,
+        'debug_header' => false,
+        'content_type_memorization' => false,
+        'memorize_headers' => array(),
+        'default_options' => array(
+            'cache_with_get_variables' => false,
+            'cache_with_post_variables' => false,
+            'cache_with_session_variables' => false,
+            'cache_with_files_variables' => false,
+            'cache_with_cookie_variables' => false,
+            'make_id_with_get_variables' => true,
+            'make_id_with_post_variables' => true,
+            'make_id_with_session_variables' => true,
+            'make_id_with_files_variables' => true,
+            'make_id_with_cookie_variables' => true,
+            'cache' => true,
+            'specific_lifetime' => false,
+            'tags' => array(),
+            'priority' => null
+        ),
+        'regexps' => array()
+    );
+
+    /**
+     * Internal array to store some options
+     *
+     * @var array associative array of options
+     */
+    protected $_activeOptions = array();
+
+    /**
+     * If true, the page won't be cached
+     *
+     * @var boolean
+     */
+    protected $_cancel = false;
+
+    /**
+     * Constructor
+     *
+     * @param  array   $options                Associative array of options
+     * @param  boolean $doNotTestCacheValidity If set to true, the cache validity won't be tested
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    public function __construct(array $options = array())
+    {
+        while (list($name, $value) = each($options)) {
+            $name = strtolower($name);
+            switch ($name) {
+                case 'regexps':
+                    $this->_setRegexps($value);
+                    break;
+                case 'default_options':
+                    $this->_setDefaultOptions($value);
+                    break;
+                case 'content_type_memorization':
+                    $this->_setContentTypeMemorization($value);
+                    break;
+                default:
+                    $this->setOption($name, $value);
+            }
+        }
+        if (isset($this->_specificOptions['http_conditional'])) {
+            if ($this->_specificOptions['http_conditional']) {
+                Zend_Cache::throwException('http_conditional is not implemented for the moment !');
+            }
+        }
+        $this->setOption('automatic_serialization', true);
+    }
+
+    /**
+     * Specific setter for the 'default_options' option (with some additional tests)
+     *
+     * @param  array $options Associative array
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _setDefaultOptions($options)
+    {
+        if (!is_array($options)) {
+            Zend_Cache::throwException('default_options must be an array !');
+        }
+        foreach ($options as $key=>$value) {
+            if (!is_string($key)) {
+                Zend_Cache::throwException("invalid option [$key] !");
+            }
+            $key = strtolower($key);
+            if (isset($this->_specificOptions['default_options'][$key])) {
+                $this->_specificOptions['default_options'][$key] = $value;
+            }
+        }
+    }
+
+    /**
+     * Set the deprecated contentTypeMemorization option
+     *
+     * @param boolean $value value
+     * @return void
+     * @deprecated
+     */
+    protected function _setContentTypeMemorization($value)
+    {
+        $found = null;
+        foreach ($this->_specificOptions['memorize_headers'] as $key => $value) {
+            if (strtolower($value) == 'content-type') {
+                $found = $key;
+            }
+        }
+        if ($value) {
+            if (!$found) {
+                $this->_specificOptions['memorize_headers'][] = 'Content-Type';
+            }
+        } else {
+            if ($found) {
+                unset($this->_specificOptions['memorize_headers'][$found]);
+            }
+        }
+    }
+
+    /**
+     * Specific setter for the 'regexps' option (with some additional tests)
+     *
+     * @param  array $options Associative array
+     * @throws Zend_Cache_Exception
+     * @return void
+     */
+    protected function _setRegexps($regexps)
+    {
+        if (!is_array($regexps)) {
+            Zend_Cache::throwException('regexps option must be an array !');
+        }
+        foreach ($regexps as $regexp=>$conf) {
+            if (!is_array($conf)) {
+                Zend_Cache::throwException('regexps option must be an array of arrays !');
+            }
+            $validKeys = array_keys($this->_specificOptions['default_options']);
+            foreach ($conf as $key=>$value) {
+                if (!is_string($key)) {
+                    Zend_Cache::throwException("unknown option [$key] !");
+                }
+                $key = strtolower($key);
+                if (!in_array($key, $validKeys)) {
+                    unset($regexps[$regexp][$key]);
+                }
+            }
+        }
+        $this->setOption('regexps', $regexps);
+    }
+
+    /**
+     * Start the cache
+     *
+     * @param  string  $id       (optional) A cache id (if you set a value here, maybe you have to use Output frontend instead)
+     * @param  boolean $doNotDie For unit testing only !
+     * @return boolean True if the cache is hit (false else)
+     */
+    public function start($id = false, $doNotDie = false)
+    {
+        $this->_cancel = false;
+        $lastMatchingRegexp = null;
+        foreach ($this->_specificOptions['regexps'] as $regexp => $conf) {
+            if (preg_match("`$regexp`", $_SERVER['REQUEST_URI'])) {
+                $lastMatchingRegexp = $regexp;
+            }
+        }
+        $this->_activeOptions = $this->_specificOptions['default_options'];
+        if ($lastMatchingRegexp !== null) {
+            $conf = $this->_specificOptions['regexps'][$lastMatchingRegexp];
+            foreach ($conf as $key=>$value) {
+                $this->_activeOptions[$key] = $value;
+            }
+        }
+        if (!($this->_activeOptions['cache'])) {
+            return false;
+        }
+        if (!$id) {
+            $id = $this->_makeId();
+            if (!$id) {
+                return false;
+            }
+        }
+        $array = $this->load($id);
+        if ($array !== false) {
+            $data = $array['data'];
+            $headers = $array['headers'];
+            if (!headers_sent()) {
+                foreach ($headers as $key=>$headerCouple) {
+                    $name = $headerCouple[0];
+                    $value = $headerCouple[1];
+                    header("$name: $value");
+                }
+            }
+            if ($this->_specificOptions['debug_header']) {
+                echo 'DEBUG HEADER : This is a cached page !';
+            }
+            echo $data;
+            if ($doNotDie) {
+                return true;
+            }
+            die();
+        }
+        ob_start(array($this, '_flush'));
+        ob_implicit_flush(false);
+        return false;
+    }
+
+    /**
+     * Cancel the current caching process
+     */
+    public function cancel()
+    {
+        $this->_cancel = true;
+    }
+
+    /**
+     * callback for output buffering
+     * (shouldn't really be called manually)
+     *
+     * @param  string $data Buffered output
+     * @return string Data to send to browser
+     */
+    public function _flush($data)
+    {
+        if ($this->_cancel) {
+            return $data;
+        }
+        $contentType = null;
+        $storedHeaders = array();
+        $headersList = headers_list();
+        foreach($this->_specificOptions['memorize_headers'] as $key=>$headerName) {
+            foreach ($headersList as $headerSent) {
+                $tmp = explode(':', $headerSent);
+                $headerSentName = trim(array_shift($tmp));
+                if (strtolower($headerName) == strtolower($headerSentName)) {
+                    $headerSentValue = trim(implode(':', $tmp));
+                    $storedHeaders[] = array($headerSentName, $headerSentValue);
+                }
+            }
+        }
+        $array = array(
+            'data' => $data,
+            'headers' => $storedHeaders
+        );
+        $this->save($array, null, $this->_activeOptions['tags'], $this->_activeOptions['specific_lifetime'], $this->_activeOptions['priority']);
+        return $data;
+    }
+
+    /**
+     * Make an id depending on REQUEST_URI and superglobal arrays (depending on options)
+     *
+     * @return mixed|false a cache id (string), false if the cache should have not to be used
+     */
+    protected function _makeId()
+    {
+        $tmp = $_SERVER['REQUEST_URI'];
+        $array = explode('?', $tmp, 2);
+          $tmp = $array[0];
+        foreach (array('Get', 'Post', 'Session', 'Files', 'Cookie') as $arrayName) {
+            $tmp2 = $this->_makePartialId($arrayName, $this->_activeOptions['cache_with_' . strtolower($arrayName) . '_variables'], $this->_activeOptions['make_id_with_' . strtolower($arrayName) . '_variables']);
+            if ($tmp2===false) {
+                return false;
+            }
+            $tmp = $tmp . $tmp2;
+        }
+        return md5($tmp);
+    }
+
+    /**
+     * Make a partial id depending on options
+     *
+     * @param  string $arrayName Superglobal array name
+     * @param  bool   $bool1     If true, cache is still on even if there are some variables in the superglobal array
+     * @param  bool   $bool2     If true, we have to use the content of the superglobal array to make a partial id
+     * @return mixed|false Partial id (string) or false if the cache should have not to be used
+     */
+    protected function _makePartialId($arrayName, $bool1, $bool2)
+    {
+        switch ($arrayName) {
+        case 'Get':
+            $var = $_GET;
+            break;
+        case 'Post':
+            $var = $_POST;
+            break;
+        case 'Session':
+            if (isset($_SESSION)) {
+                $var = $_SESSION;
+            } else {
+                $var = null;
+            }
+            break;
+        case 'Cookie':
+            if (isset($_COOKIE)) {
+                $var = $_COOKIE;
+            } else {
+                $var = null;
+            }
+            break;
+        case 'Files':
+            $var = $_FILES;
+            break;
+        default:
+            return false;
+        }
+        if ($bool1) {
+            if ($bool2) {
+                return serialize($var);
+            }
+            return '';
+        }
+        if (count($var) > 0) {
+            return false;
+        }
+        return '';
+    }
+
+}

libraries/Zend/Cache/Manager.php

@@ -0,0 +1,298 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id$
+ */
+
+/** @see Zend_Cache_Exception */
+require_once 'Zend/Cache/Exception.php';
+
+/** @see Zend_Cache */
+require_once 'Zend/Cache.php';
+
+/**
+ * @category   Zend
+ * @package    Zend_Cache
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Cache_Manager
+{
+    /**
+     * Constant holding reserved name for default Page Cache
+     */
+    const PAGECACHE = 'page';
+
+    /**
+     * Constant holding reserved name for default Page Tag Cache
+     */
+    const PAGETAGCACHE = 'pagetag';
+
+    /**
+     * Array of caches stored by the Cache Manager instance
+     *
+     * @var array
+     */
+    protected $_caches = array();
+
+    /**
+     * Array of ready made configuration templates for lazy
+     * loading caches.
+     *
+     * @var array
+     */
+    protected $_optionTemplates = array(
+        // Simple Common Default
+        'default' => array(
+            'frontend' => array(
+                'name'    => 'Core',
+                'options' => array(
+                    'automatic_serialization' => true,
+                ),
+            ),
+            'backend' => array(
+                'name'    => 'File',
+                'options' => array(
+                    // use system temp dir by default of file backend
+                    // 'cache_dir' => '../cache',
+                ),
+            ),
+        ),
+
+        // Static Page HTML Cache
+        'page' => array(
+            'frontend' => array(
+                'name'    => 'Capture',
+                'options' => array(
+                    'ignore_user_abort' => true,
+                ),
+            ),
+            'backend' => array(
+                'name'    => 'Static',
+                'options' => array(
+                    'public_dir' => '../public',
+                ),
+            ),
+        ),
+
+        // Tag Cache
+        'pagetag' => array(
+            'frontend' => array(
+                'name'    => 'Core',
+                'options' => array(
+                    'automatic_serialization' => true,
+                    'lifetime' => null
+                ),
+            ),
+            'backend' => array(
+                'name'    => 'File',
+                'options' => array(
+                    // use system temp dir by default of file backend
+                    // 'cache_dir' => '../cache',
+                    // use default umask of file backend
+                    // 'cache_file_umask' => 0644
+                ),
+            ),
+        ),
+    );
+
+    /**
+     * Set a new cache for the Cache Manager to contain
+     *
+     * @param  string $name
+     * @param  Zend_Cache_Core $cache
+     * @return Zend_Cache_Manager
+     */
+    public function setCache($name, Zend_Cache_Core $cache)
+    {
+        $this->_caches[$name] = $cache;
+        return $this;
+    }
+
+    /**
+     * Check if the Cache Manager contains the named cache object, or a named
+     * configuration template to lazy load the cache object
+     *
+     * @param string $name
+     * @return bool
+     */
+    public function hasCache($name)
+    {
+        if (isset($this->_caches[$name])
+            || $this->hasCacheTemplate($name)
+        ) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Fetch the named cache object, or instantiate and return a cache object
+     * using a named configuration template
+     *
+     * @param  string $name
+     * @return Zend_Cache_Core
+     */
+    public function getCache($name)
+    {
+        if (isset($this->_caches[$name])) {
+            return $this->_caches[$name];
+        }
+        if (isset($this->_optionTemplates[$name])) {
+            if ($name == self::PAGECACHE
+                && (!isset($this->_optionTemplates[$name]['backend']['options']['tag_cache'])
+                || !$this->_optionTemplates[$name]['backend']['options']['tag_cache'] instanceof Zend_Cache_Core)
+            ) {
+                $this->_optionTemplates[$name]['backend']['options']['tag_cache']
+                    = $this->getCache(self::PAGETAGCACHE);
+            }
+
+            $this->_caches[$name] = Zend_Cache::factory(
+                $this->_optionTemplates[$name]['frontend']['name'],
+                $this->_optionTemplates[$name]['backend']['name'],
+                isset($this->_optionTemplates[$name]['frontend']['options']) ? $this->_optionTemplates[$name]['frontend']['options'] : array(),
+                isset($this->_optionTemplates[$name]['backend']['options']) ? $this->_optionTemplates[$name]['backend']['options'] : array(),
+                isset($this->_optionTemplates[$name]['frontend']['customFrontendNaming']) ? $this->_optionTemplates[$name]['frontend']['customFrontendNaming'] : false,
+                isset($this->_optionTemplates[$name]['backend']['customBackendNaming']) ? $this->_optionTemplates[$name]['backend']['customBackendNaming'] : false,
+                isset($this->_optionTemplates[$name]['frontendBackendAutoload']) ? $this->_optionTemplates[$name]['frontendBackendAutoload'] : false
+            );
+
+            return $this->_caches[$name];
+        }
+    }
+
+    /**
+     * Fetch all available caches
+     *
+     * @return array An array of all available caches with it's names as key
+     */
+    public function getCaches()
+    {
+        $caches = $this->_caches;
+        foreach ($this->_optionTemplates as $name => $tmp) {
+            if (!isset($caches[$name])) {
+                $caches[$name] = $this->getCache($name);
+            }
+        }
+        return $caches;
+    }
+
+    /**
+     * Set a named configuration template from which a cache object can later
+     * be lazy loaded
+     *
+     * @param  string $name
+     * @param  array $options
+     * @return Zend_Cache_Manager
+     */
+    public function setCacheTemplate($name, $options)
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        } elseif (!is_array($options)) {
+            require_once 'Zend/Cache/Exception.php';
+            throw new Zend_Cache_Exception('Options passed must be in'
+                . ' an associative array or instance of Zend_Config');
+        }
+        $this->_optionTemplates[$name] = $options;
+        return $this;
+    }
+
+    /**
+     * Check if the named configuration template
+     *
+     * @param  string $name
+     * @return bool
+     */
+    public function hasCacheTemplate($name)
+    {
+        if (isset($this->_optionTemplates[$name])) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Get the named configuration template
+     *
+     * @param  string $name
+     * @return array
+     */
+    public function getCacheTemplate($name)
+    {
+        if (isset($this->_optionTemplates[$name])) {
+            return $this->_optionTemplates[$name];
+        }
+    }
+
+    /**
+     * Pass an array containing changes to be applied to a named
+     * configuration
+     * template
+     *
+     * @param  string $name
+     * @param  array $options
+     * @return Zend_Cache_Manager
+     * @throws Zend_Cache_Exception for invalid options format or if option templates do not have $name
+     */
+    public function setTemplateOptions($name, $options)
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        } elseif (!is_array($options)) {
+            require_once 'Zend/Cache/Exception.php';
+            throw new Zend_Cache_Exception('Options passed must be in'
+                . ' an associative array or instance of Zend_Config');
+        }
+        if (!isset($this->_optionTemplates[$name])) {
+            throw new Zend_Cache_Exception('A cache configuration template'
+                . 'does not exist with the name "' . $name . '"');
+        }
+        $this->_optionTemplates[$name]
+            = $this->_mergeOptions($this->_optionTemplates[$name], $options);
+        return $this;
+    }
+
+    /**
+     * Simple method to merge two configuration arrays
+     *
+     * @param  array $current
+     * @param  array $options
+     * @return array
+     */
+    protected function _mergeOptions(array $current, array $options)
+    {
+        if (isset($options['frontend']['name'])) {
+            $current['frontend']['name'] = $options['frontend']['name'];
+        }
+        if (isset($options['backend']['name'])) {
+            $current['backend']['name'] = $options['backend']['name'];
+        }
+        if (isset($options['frontend']['options'])) {
+            foreach ($options['frontend']['options'] as $key=>$value) {
+                $current['frontend']['options'][$key] = $value;
+            }
+        }
+        if (isset($options['backend']['options'])) {
+            foreach ($options['backend']['options'] as $key=>$value) {
+                $current['backend']['options'][$key] = $value;
+            }
+        }
+        return $current;
+    }
+}

libraries/Zend/Exception.php

@@ -0,0 +1,95 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+/**
+* @category   Zend
+* @package    Zend
+* @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+* @license    http://framework.zend.com/license/new-bsd     New BSD License
+*/
+class Zend_Exception extends Exception
+{
+    /**
+     * @var null|Exception
+     */
+    private $_previous = null;
+
+    /**
+     * Construct the exception
+     *
+     * @param  string $msg
+     * @param  int $code
+     * @param  Exception $previous
+     * @return void
+     */
+    public function __construct($msg = '', $code = 0, Exception $previous = null)
+    {
+        if (version_compare(PHP_VERSION, '5.3.0', '<')) {
+            parent::__construct($msg, (int) $code);
+            $this->_previous = $previous;
+        } else {
+            parent::__construct($msg, (int) $code, $previous);
+        }
+    }
+
+    /**
+     * Overloading
+     *
+     * For PHP < 5.3.0, provides access to the getPrevious() method.
+     * 
+     * @param  string $method 
+     * @param  array $args 
+     * @return mixed
+     */
+    public function __call($method, array $args)
+    {
+        if ('getprevious' == strtolower($method)) {
+            return $this->_getPrevious();
+        }
+        return null;
+    }
+
+    /**
+     * String representation of the exception
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        if (version_compare(PHP_VERSION, '5.3.0', '<')) {
+            if (null !== ($e = $this->getPrevious())) {
+                return $e->__toString() 
+                       . "\n\nNext " 
+                       . parent::__toString();
+            }
+        }
+        return parent::__toString();
+    }
+
+    /**
+     * Returns previous Exception
+     *
+     * @return Exception|null
+     */
+    protected function _getPrevious()
+    {
+        return $this->_previous;
+    }
+}

libraries/Zend/Loader.php

@@ -0,0 +1,329 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Loader
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Loader.php 22020 2010-04-27 16:35:56Z matthew $
+ */
+
+/**
+ * Static methods for loading classes and files.
+ *
+ * @category   Zend
+ * @package    Zend_Loader
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Loader
+{
+    /**
+     * Loads a class from a PHP file.  The filename must be formatted
+     * as "$class.php".
+     *
+     * If $dirs is a string or an array, it will search the directories
+     * in the order supplied, and attempt to load the first matching file.
+     *
+     * If $dirs is null, it will split the class name at underscores to
+     * generate a path hierarchy (e.g., "Zend_Example_Class" will map
+     * to "Zend/Example/Class.php").
+     *
+     * If the file was not found in the $dirs, or if no $dirs were specified,
+     * it will attempt to load it from PHP's include_path.
+     *
+     * @param string $class      - The full class name of a Zend component.
+     * @param string|array $dirs - OPTIONAL Either a path or an array of paths
+     *                             to search.
+     * @return void
+     * @throws Zend_Exception
+     */
+    public static function loadClass($class, $dirs = null)
+    {
+        if (class_exists($class, false) || interface_exists($class, false)) {
+            return;
+        }
+
+        if ((null !== $dirs) && !is_string($dirs) && !is_array($dirs)) {
+            require_once 'Zend/Exception.php';
+            throw new Zend_Exception('Directory argument must be a string or an array');
+        }
+
+        // Autodiscover the path from the class name
+        // Implementation is PHP namespace-aware, and based on 
+        // Framework Interop Group reference implementation:
+        // http://groups.google.com/group/php-standards/web/psr-0-final-proposal
+        $className = ltrim($class, '\\');
+        $file      = '';
+        $namespace = '';
+        if ($lastNsPos = strripos($className, '\\')) {
+            $namespace = substr($className, 0, $lastNsPos);
+            $className = substr($className, $lastNsPos + 1);
+            $file      = str_replace('\\', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR;
+        }
+        $file .= str_replace('_', DIRECTORY_SEPARATOR, $className) . '.php';
+
+        if (!empty($dirs)) {
+            // use the autodiscovered path
+            $dirPath = dirname($file);
+            if (is_string($dirs)) {
+                $dirs = explode(PATH_SEPARATOR, $dirs);
+            }
+            foreach ($dirs as $key => $dir) {
+                if ($dir == '.') {
+                    $dirs[$key] = $dirPath;
+                } else {
+                    $dir = rtrim($dir, '\\/');
+                    $dirs[$key] = $dir . DIRECTORY_SEPARATOR . $dirPath;
+                }
+            }
+            $file = basename($file);
+            self::loadFile($file, $dirs, true);
+        } else {
+            self::loadFile($file, null, true);
+        }
+
+        if (!class_exists($class, false) && !interface_exists($class, false)) {
+            require_once 'Zend/Exception.php';
+            throw new Zend_Exception("File \"$file\" does not exist or class \"$class\" was not found in the file");
+        }
+    }
+
+    /**
+     * Loads a PHP file.  This is a wrapper for PHP's include() function.
+     *
+     * $filename must be the complete filename, including any
+     * extension such as ".php".  Note that a security check is performed that
+     * does not permit extended characters in the filename.  This method is
+     * intended for loading Zend Framework files.
+     *
+     * If $dirs is a string or an array, it will search the directories
+     * in the order supplied, and attempt to load the first matching file.
+     *
+     * If the file was not found in the $dirs, or if no $dirs were specified,
+     * it will attempt to load it from PHP's include_path.
+     *
+     * If $once is TRUE, it will use include_once() instead of include().
+     *
+     * @param  string        $filename
+     * @param  string|array  $dirs - OPTIONAL either a path or array of paths
+     *                       to search.
+     * @param  boolean       $once
+     * @return boolean
+     * @throws Zend_Exception
+     */
+    public static function loadFile($filename, $dirs = null, $once = false)
+    {
+        self::_securityCheck($filename);
+
+        /**
+         * Search in provided directories, as well as include_path
+         */
+        $incPath = false;
+        if (!empty($dirs) && (is_array($dirs) || is_string($dirs))) {
+            if (is_array($dirs)) {
+                $dirs = implode(PATH_SEPARATOR, $dirs);
+            }
+            $incPath = get_include_path();
+            set_include_path($dirs . PATH_SEPARATOR . $incPath);
+        }
+
+        /**
+         * Try finding for the plain filename in the include_path.
+         */
+        if ($once) {
+            include_once $filename;
+        } else {
+            include $filename;
+        }
+
+        /**
+         * If searching in directories, reset include_path
+         */
+        if ($incPath) {
+            set_include_path($incPath);
+        }
+
+        return true;
+    }
+
+    /**
+     * Returns TRUE if the $filename is readable, or FALSE otherwise.
+     * This function uses the PHP include_path, where PHP's is_readable()
+     * does not.
+     *
+     * Note from ZF-2900:
+     * If you use custom error handler, please check whether return value
+     *  from error_reporting() is zero or not.
+     * At mark of fopen() can not suppress warning if the handler is used.
+     *
+     * @param string   $filename
+     * @return boolean
+     */
+    public static function isReadable($filename)
+    {
+        if (is_readable($filename)) {
+            // Return early if the filename is readable without needing the 
+            // include_path
+            return true;
+        }
+
+        if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN'
+            && preg_match('/^[a-z]:/i', $filename)
+        ) {
+            // If on windows, and path provided is clearly an absolute path, 
+            // return false immediately
+            return false;
+        }
+
+        foreach (self::explodeIncludePath() as $path) {
+            if ($path == '.') {
+                if (is_readable($filename)) {
+                    return true;
+                }
+                continue;
+            }
+            $file = $path . '/' . $filename;
+            if (is_readable($file)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Explode an include path into an array
+     *
+     * If no path provided, uses current include_path. Works around issues that
+     * occur when the path includes stream schemas.
+     * 
+     * @param  string|null $path 
+     * @return array
+     */
+    public static function explodeIncludePath($path = null)
+    {
+        if (null === $path) {
+            $path = get_include_path();
+        }
+
+        if (PATH_SEPARATOR == ':') {
+            // On *nix systems, include_paths which include paths with a stream 
+            // schema cannot be safely explode'd, so we have to be a bit more
+            // intelligent in the approach.
+            $paths = preg_split('#:(?!//)#', $path);
+        } else {
+            $paths = explode(PATH_SEPARATOR, $path);
+        }
+        return $paths;
+    }
+
+    /**
+     * spl_autoload() suitable implementation for supporting class autoloading.
+     *
+     * Attach to spl_autoload() using the following:
+     * <code>
+     * spl_autoload_register(array('Zend_Loader', 'autoload'));
+     * </code>
+     *
+     * @deprecated Since 1.8.0
+     * @param  string $class
+     * @return string|false Class name on success; false on failure
+     */
+    public static function autoload($class)
+    {
+        trigger_error(__CLASS__ . '::' . __METHOD__ . ' is deprecated as of 1.8.0 and will be removed with 2.0.0; use Zend_Loader_Autoloader instead', E_USER_NOTICE);
+        try {
+            @self::loadClass($class);
+            return $class;
+        } catch (Exception $e) {
+            return false;
+        }
+    }
+
+    /**
+     * Register {@link autoload()} with spl_autoload()
+     *
+     * @deprecated Since 1.8.0
+     * @param string $class (optional)
+     * @param boolean $enabled (optional)
+     * @return void
+     * @throws Zend_Exception if spl_autoload() is not found
+     * or if the specified class does not have an autoload() method.
+     */
+    public static function registerAutoload($class = 'Zend_Loader', $enabled = true)
+    {
+        trigger_error(__CLASS__ . '::' . __METHOD__ . ' is deprecated as of 1.8.0 and will be removed with 2.0.0; use Zend_Loader_Autoloader instead', E_USER_NOTICE);
+        require_once 'Zend/Loader/Autoloader.php';
+        $autoloader = Zend_Loader_Autoloader::getInstance();
+        $autoloader->setFallbackAutoloader(true);
+
+        if ('Zend_Loader' != $class) {
+            self::loadClass($class);
+            $methods = get_class_methods($class);
+            if (!in_array('autoload', (array) $methods)) {
+                require_once 'Zend/Exception.php';
+                throw new Zend_Exception("The class \"$class\" does not have an autoload() method");
+            }
+
+            $callback = array($class, 'autoload');
+
+            if ($enabled) {
+                $autoloader->pushAutoloader($callback);
+            } else {
+                $autoloader->removeAutoloader($callback);
+            }
+        }
+    }
+
+    /**
+     * Ensure that filename does not contain exploits
+     *
+     * @param  string $filename
+     * @return void
+     * @throws Zend_Exception
+     */
+    protected static function _securityCheck($filename)
+    {
+        /**
+         * Security check
+         */
+        if (preg_match('/[^a-z0-9\\/\\\\_.:-]/i', $filename)) {
+            require_once 'Zend/Exception.php';
+            throw new Zend_Exception('Security check: Illegal character in filename');
+        }
+    }
+
+    /**
+     * Attempt to include() the file.
+     *
+     * include() is not prefixed with the @ operator because if
+     * the file is loaded and contains a parse error, execution
+     * will halt silently and this is difficult to debug.
+     *
+     * Always set display_errors = Off on production servers!
+     *
+     * @param  string  $filespec
+     * @param  boolean $once
+     * @return boolean
+     * @deprecated Since 1.5.0; use loadFile() instead
+     */
+    protected static function _includeFile($filespec, $once = false)
+    {
+        if ($once) {
+            return include_once $filespec;
+        } else {
+            return include $filespec ;
+        }
+    }
+}

libraries/feedwriter/FeedItem.php

@@ -0,0 +1,167 @@
+<?php
+ /**
+ * Univarsel Feed Writer
+ * 
+ * FeedItem class - Used as feed element in FeedWriter class
+ *
+ * @package         UnivarselFeedWriter
+ * @author          Anis uddin Ahmad <anisniit@gmail.com>
+ * @link            http://www.ajaxray.com/projects/rss
+ */
+ class FeedItem
+ {
+	private $elements = array();    //Collection of feed elements
+	private $version;
+	
+	/**
+	* Constructor 
+	* 
+	* @param    contant     (RSS1/RSS2/ATOM) RSS2 is default. 
+	*/ 
+	function __construct($version = RSS2)
+	{    
+		$this->version = $version;
+	}
+	
+	/**
+	* Add an element to elements array
+	* 
+	* @access   public
+	* @param    srting  The tag name of an element
+	* @param    srting  The content of tag
+	* @param    array   Attributes(if any) in 'attrName' => 'attrValue' format
+	* @return   void
+	*/
+	public function addElement($elementName, $content, $attributes = null)
+	{
+		$this->elements[$elementName]['name']       = $elementName;
+		$this->elements[$elementName]['content']    = $content;
+		$this->elements[$elementName]['attributes'] = $attributes;
+	}
+	
+	/**
+	* Set multiple feed elements from an array. 
+	* Elements which have attributes cannot be added by this method
+	* 
+	* @access   public
+	* @param    array   array of elements in 'tagName' => 'tagContent' format.
+	* @return   void
+	*/
+	public function addElementArray($elementArray)
+	{
+		if(! is_array($elementArray)) return;
+		foreach ($elementArray as $elementName => $content) 
+		{
+			$this->addElement($elementName, $content);
+		}
+	}
+	
+	/**
+	* Return the collection of elements in this feed item
+	* 
+	* @access   public
+	* @return   array
+	*/
+	public function getElements()
+	{
+		return $this->elements;
+	}
+	
+	// Wrapper functions ------------------------------------------------------
+	
+	/**
+	* Set the 'dscription' element of feed item
+	* 
+	* @access   public
+	* @param    string  The content of 'description' element
+	* @return   void
+	*/
+	public function setDescription($description) 
+	{
+		$tag = ($this->version == ATOM)? 'summary' : 'description'; 
+		$this->addElement($tag, $description);
+	}
+	
+	/**
+	* @desc     Set the 'title' element of feed item
+	* @access   public
+	* @param    string  The content of 'title' element
+	* @return   void
+	*/
+	public function setTitle($title) 
+	{
+		$this->addElement('title', $title);  	
+	}
+	
+	/**
+	* Set the 'date' element of feed item
+	* 
+	* @access   public
+	* @param    string  The content of 'date' element
+	* @return   void
+	*/
+	public function setDate($date) 
+	{
+		if(! is_numeric($date))
+		{
+			$date = strtotime($date);
+		}
+		
+		if($this->version == ATOM)
+		{
+			$tag    = 'updated';
+			$value  = date(DATE_ATOM, $date);
+		}        
+		elseif($this->version == RSS2) 
+		{
+			$tag    = 'pubDate';
+			$value  = date(DATE_RSS, $date);
+		}
+		else                                
+		{
+			$tag    = 'dc:date';
+			$value  = date("Y-m-d", $date);
+		}
+		
+		$this->addElement($tag, $value);    
+	}
+	
+	/**
+	* Set the 'link' element of feed item
+	* 
+	* @access   public
+	* @param    string  The content of 'link' element
+	* @return   void
+	*/
+	public function setLink($link) 
+	{
+		if($this->version == RSS2 || $this->version == RSS1)
+		{
+			$this->addElement('link', $link);
+		}
+		else
+		{
+			$this->addElement('link','',array('href'=>$link));
+			$this->addElement('id', FeedWriter::uuid($link,'urn:uuid:'));
+		} 
+		
+	}
+	
+	/**
+	* Set the 'encloser' element of feed item
+	* For RSS 2.0 only
+	* 
+	* @access   public
+	* @param    string  The url attribute of encloser tag
+	* @param    string  The length attribute of encloser tag
+	* @param    string  The type attribute of encloser tag
+	* @return   void
+	*/
+	public function setEncloser($url, $length, $type)
+	{
+		$attributes = array('url'=>$url, 'length'=>$length, 'type'=>$type);
+		$this->addElement('enclosure','',$attributes);
+	}
+	
+ } // end of class FeedItem
+?>

libraries/feedwriter/FeedWriter.php

@@ -0,0 +1,430 @@
+<?php
+// RSS 0.90  Officially obsoleted by 1.0
+// RSS 0.91, 0.92, 0.93 and 0.94  Officially obsoleted by 2.0
+// So, define constants for RSS 1.0, RSS 2.0 and ATOM 	
+
+	define('RSS1', 'RSS 1.0', true);
+	define('RSS2', 'RSS 2.0', true);
+	define('ATOM', 'ATOM', true);
+
+ /**
+ * Univarsel Feed Writer class
+ *
+ * Genarate RSS 1.0, RSS2.0 and ATOM Feed
+ *                             
+ * @package     UnivarselFeedWriter
+ * @author      Anis uddin Ahmad <anisniit@gmail.com>
+ * @link        http://www.ajaxray.com/projects/rss
+ */
+ class FeedWriter
+ {
+	 private $channels      = array();  // Collection of channel elements
+	 private $items         = array();  // Collection of items as object of FeedItem class.
+	 private $data          = array();  // Store some other version wise data
+	 private $CDATAEncoding = array();  // The tag names which have to encoded as CDATA
+	 
+	 private $version   = null; 
+	
+	/**
+	* Constructor
+	* 
+	* @param    constant    the version constant (RSS1/RSS2/ATOM).       
+	*/ 
+	function __construct($version = RSS2)
+	{	
+		$this->version = $version;
+			
+		// Setting default value for assential channel elements
+		$this->channels['title']        = $version . ' Feed';
+		$this->channels['link']         = 'http://www.ajaxray.com/blog';
+				
+		//Tag names to encode in CDATA
+		$this->CDATAEncoding = array('description', 'content:encoded', 'content', 'subtitle', 'summary');
+	}
+
+	// Start # public functions ---------------------------------------------
+	
+	/**
+	* Set a channel element
+	* @access   public
+	* @param    srting  name of the channel tag
+	* @param    string  content of the channel tag
+	* @return   void
+	*/
+	public function setChannelElement($elementName, $content)
+	{
+		$this->channels[$elementName] = $content ;
+	}
+	
+	/**
+	* Set multiple channel elements from an array. Array elements 
+	* should be 'channelName' => 'channelContent' format.
+	* 
+	* @access   public
+	* @param    array   array of channels
+	* @return   void
+	*/
+	public function setChannelElementsFromArray($elementArray)
+	{
+		if(! is_array($elementArray)) return;
+		foreach ($elementArray as $elementName => $content) 
+		{
+			$this->setChannelElement($elementName, $content);
+		}
+	}
+	
+	/**
+	* Genarate the actual RSS/ATOM file
+	* 
+	* @access   public
+	* @return   void
+	*/ 
+	public function genarateFeed()
+	{
+		header("Content-type: text/xml; charset=UTF-8");
+		
+		$this->printHead();
+		$this->printChannels();
+		$this->printItems();
+		$this->printTale();
+	}
+	
+	/**
+	* Create a new FeedItem.
+	* 
+	* @access   public
+	* @return   object  instance of FeedItem class
+	*/
+	public function createNewItem()
+	{
+		$Item = new FeedItem($this->version);
+		return $Item;
+	}
+	
+	/**
+	* Add a FeedItem to the main class
+	* 
+	* @access   public
+	* @param    object  instance of FeedItem class
+	* @return   void
+	*/
+	public function addItem($feedItem)
+	{
+		$this->items[] = $feedItem;    
+	}
+	
+	
+	// Wrapper functions -------------------------------------------------------------------
+	
+	/**
+	* Set the 'title' channel element
+	* 
+	* @access   public
+	* @param    srting  value of 'title' channel tag
+	* @return   void
+	*/
+	public function setTitle($title)
+	{
+		$this->setChannelElement('title', $title);
+	}
+	
+	/**
+	* Set the 'description' channel element
+	* 
+	* @access   public
+	* @param    srting  value of 'description' channel tag
+	* @return   void
+	*/
+	public function setDescription($desciption)
+	{
+		$tag = ($this->version == ATOM)? 'subtitle' : 'description'; 
+		$this->setChannelElement($tag, $desciption);
+	}
+	
+	/**
+	* Set the 'link' channel element
+	* 
+	* @access   public
+	* @param    srting  value of 'link' channel tag
+	* @return   void
+	*/
+	public function setLink($link)
+	{
+		$this->setChannelElement('link', $link);
+	}
+	
+	/**
+	* Set the 'image' channel element
+	* 
+	* @access   public
+	* @param    srting  title of image
+	* @param    srting  link url of the imahe
+	* @param    srting  path url of the image
+	* @return   void
+	*/
+	public function setImage($title, $link, $url)
+	{
+		$this->setChannelElement('image', array('title'=>$title, 'link'=>$link, 'url'=>$url));
+	}
+	
+	/**
+	* Set the 'about' channel element. Only for RSS 1.0
+	* 
+	* @access   public
+	* @param    srting  value of 'about' channel tag
+	* @return   void
+	*/
+	public function setChannelAbout($url)
+	{
+		$this->data['ChannelAbout'] = $url;    
+	}
+	
+  /**
+  * Genarates an UUID
+  * @author     Anis uddin Ahmad <admin@ajaxray.com>
+  * @param      string  an optional prefix
+  * @return     string  the formated uuid
+  */
+  public function uuid($key = null, $prefix = '') 
+  {
+	$key = ($key == null)? uniqid(rand()) : $key;
+	$chars = md5($key);
+	$uuid  = substr($chars,0,8) . '-';
+	$uuid .= substr($chars,8,4) . '-';
+	$uuid .= substr($chars,12,4) . '-';
+	$uuid .= substr($chars,16,4) . '-';
+	$uuid .= substr($chars,20,12);
+
+	return $prefix . $uuid;
+  }
+	// End # public functions ----------------------------------------------
+	
+	// Start # private functions ----------------------------------------------
+	
+	/**
+	* Prints the xml and rss namespace
+	* 
+	* @access   private
+	* @return   void
+	*/
+	private function printHead()
+	{
+		$out  = '<?xml version="1.0" encoding="utf-8"?>' . "\n";
+		
+		if($this->version == RSS2)
+		{
+			$out .= '<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">' . PHP_EOL;
+		}    
+		elseif($this->version == RSS1)
+		{
+			$out .= '<rdf:RDF 
+					 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+					 xmlns="http://purl.org/rss/1.0/"
+					 xmlns:dc="http://purl.org/dc/elements/1.1/"
+					>' . PHP_EOL;;
+		}
+		else if($this->version == ATOM)
+		{
+			$out .= '<feed xmlns="http://www.w3.org/2005/Atom">' . PHP_EOL;;
+		}
+		echo $out;
+	}
+	
+	/**
+	* Closes the open tags at the end of file
+	* 
+	* @access   private
+	* @return   void
+	*/
+	private function printTale()
+	{
+		if($this->version == RSS2)
+		{
+			echo '</channel>' . PHP_EOL . '</rss>'; 
+		}    
+		elseif($this->version == RSS1)
+		{
+			echo '</rdf:RDF>';
+		}
+		else if($this->version == ATOM)
+		{
+			echo '</feed>';
+		}
+	  
+	}
+
+	/**
+	* Creates a single node as xml format
+	* 
+	* @access   private
+	* @param    srting  name of the tag
+	* @param    mixed   tag value as string or array of nested tags in 'tagName' => 'tagValue' format
+	* @param    array   Attributes(if any) in 'attrName' => 'attrValue' format
+	* @return   string  formatted xml tag
+	*/
+	private function makeNode($tagName, $tagContent, $attributes = null)
+	{        
+		$nodeText = '';
+		$attrText = '';
+
+		if(is_array($attributes))
+		{
+			foreach ($attributes as $key => $value) 
+			{
+				$attrText .= " $key=\"$value\" ";
+			}
+		}
+		
+		if(is_array($tagContent) && $this->version == RSS1)
+		{
+			$attrText = ' rdf:parseType="Resource"';
+		}
+		
+		
+		$attrText .= (in_array($tagName, $this->CDATAEncoding) && $this->version == ATOM)? ' type="html" ' : '';
+		//$nodeText .= (in_array($tagName, $this->CDATAEncoding))? "<{$tagName}{$attrText}><![CDATA[" : "<{$tagName}{$attrText}>";
+		$nodeText .= "<{$tagName}{$attrText}>";
+		 
+		if(is_array($tagContent))
+		{ 
+			foreach ($tagContent as $key => $value) 
+			{
+				$nodeText .= $this->makeNode($key, $value);
+			}
+		}
+		else
+		{
+			//$nodeText .= (in_array($tagName, $this->CDATAEncoding))? $tagContent : htmlentities($tagContent);
+			$nodeText .= htmlspecialchars($tagContent);
+		}           
+			
+		//$nodeText .= (in_array($tagName, $this->CDATAEncoding))? "]]></$tagName>" : "</$tagName>";
+		$nodeText .= "</$tagName>";
+
+		return $nodeText . PHP_EOL;
+	}
+	
+	/**
+	* @desc     Print channels
+	* @access   private
+	* @return   void
+	*/
+	private function printChannels()
+	{
+		//Start channel tag
+		switch ($this->version) 
+		{
+		   case RSS2: 
+				echo '<channel>' . PHP_EOL;        
+				break;
+		   case RSS1: 
+				echo (isset($this->data['ChannelAbout']))? "<channel rdf:about=\"{$this->data['ChannelAbout']}\">" : "<channel rdf:about=\"{$this->channels['link']}\">";
+				break;
+		}
+		
+		//Print Items of channel
+		foreach ($this->channels as $key => $value) 
+		{
+			if($this->version == ATOM && $key == 'link') 
+			{
+				// ATOM prints link element as href attribute
+				echo $this->makeNode($key,'',array('href'=>$value));
+				//Add the id for ATOM
+				echo $this->makeNode('id',$this->uuid($value,'urn:uuid:'));
+			}
+			else
+			{
+				echo $this->makeNode($key, $value);
+			}    
+			
+		}
+		
+		//RSS 1.0 have special tag <rdf:Seq> with channel 
+		if($this->version == RSS1)
+		{
+			echo "<items>" . PHP_EOL . "<rdf:Seq>" . PHP_EOL;
+			foreach ($this->items as $item) 
+			{
+				$thisItems = $item->getElements();
+				echo "<rdf:li resource=\"{$thisItems['link']['content']}\"/>" . PHP_EOL;
+			}
+			echo "</rdf:Seq>" . PHP_EOL . "</items>" . PHP_EOL . "</channel>" . PHP_EOL;
+		}
+	}
+	
+	/**
+	* Prints formatted feed items
+	* 
+	* @access   private
+	* @return   void
+	*/
+	private function printItems()
+	{    
+		foreach ($this->items as $item) 
+		{
+			$thisItems = $item->getElements();
+			
+			//the argument is printed as rdf:about attribute of item in rss 1.0 
+			echo $this->startItem($thisItems['link']['content']);
+			
+			foreach ($thisItems as $feedItem ) 
+			{
+				echo $this->makeNode($feedItem['name'], $feedItem['content'], $feedItem['attributes']); 
+			}
+			echo $this->endItem();
+		}
+	}
+	
+	/**
+	* Make the starting tag of channels
+	* 
+	* @access   private
+	* @param    srting  The vale of about tag which is used for only RSS 1.0
+	* @return   void
+	*/
+	private function startItem($about = false)
+	{
+		if($this->version == RSS2)
+		{
+			echo '<item>' . PHP_EOL; 
+		}    
+		elseif($this->version == RSS1)
+		{
+			if($about)
+			{
+				echo "<item rdf:about=\"$about\">" . PHP_EOL;
+			}
+			else
+			{
+				die('link element is not set .\n It\'s required for RSS 1.0 to be used as about attribute of item');
+			}
+		}
+		else if($this->version == ATOM)
+		{
+			echo "<entry>" . PHP_EOL;
+		}    
+	}
+	
+	/**
+	* Closes feed item tag
+	* 
+	* @access   private
+	* @return   void
+	*/
+	private function endItem()
+	{
+		if($this->version == RSS2 || $this->version == RSS1)
+		{
+			echo '</item>' . PHP_EOL; 
+		}    
+		else if($this->version == ATOM)
+		{
+			echo "</entry>" . PHP_EOL;
+		}
+	}
+	
+
+	
+	// End # private functions ----------------------------------------------
+	
+ } // end of class FeedWriter

libraries/humble-http-agent/HumbleHttpAgent.php

@@ -0,0 +1,247 @@
+<?php
+/**
+ * Humble HTTP Agent
+ * 
+ * This class is designed to take advantage of parallel HTTP requests
+ * offered by PHP's PECL HTTP extension. For environments which 
+ * do not have this extension, it reverts to standard sequential 
+ * requests (using file_get_contents())
+ * 
+ * @version 2010-10-19
+ * @see http://php.net/HttpRequestPool
+ * @author Keyvan Minoukadeh
+ * @copyright 2010 Keyvan Minoukadeh
+ * @license http://www.gnu.org/licenses/agpl-3.0.html AGPL v3
+ */
+
+class HumbleHttpAgent
+{
+	protected $requests = array();
+	protected $requestOptions;
+	protected $parallelSupport;
+	protected $maxParallelRequests = 5;
+	protected $cache = null;
+	protected $httpContext;
+	protected $minimiseMemoryUse = false;
+	protected $debug = false;
+	
+	//TODO: prevent certain file/mime types
+	//TODO: set max file size
+	//TODO: normalise headers
+	
+	function __construct($requestOptions=null) {
+		$this->parallelSupport = class_exists('HttpRequestPool');
+		$this->requestOptions = array(
+			'timeout' => 10,
+			'redirect' => 5
+			// TODO: test onprogress?
+		);
+		if (is_array($requestOptions)) {
+			$this->requestOptions = array_merge($this->requestOptions, $requestOptions);
+		}
+		$this->httpContext = stream_context_create(array(
+			'http' => array(
+				'timeout' => $this->requestOptions['timeout'],
+				'max_redirects' => $this->requestOptions['redirect']
+				)
+			)
+		);		
+	}
+	
+	protected function debug($msg) {
+		if ($this->debug) {
+			$mem = round(memory_get_usage()/1024, 2);
+			$memPeak = round(memory_get_peak_usage()/1024, 2);
+			echo '* ',$msg;
+			echo ' - mem used: ',$mem," (peak: $memPeak)\n";	
+			ob_flush();
+			flush();
+		}
+	}
+	
+	public function enableDebug($bool=true) {
+		$this->debug = (bool)$bool;
+	}
+	
+	public function minimiseMemoryUse($bool = true) {
+		$this->minimiseMemoryUse = $bool;
+	}
+	
+	public function setMaxParallelRequests($max) {
+		$this->maxParallelRequests = $max;
+	}
+	
+	/**
+	 * Set cache object.
+	 * The cache object passed should implement Zend_Cache_Backend_Interface
+	 * @param Zend_Cache_Backend_Interface
+	 */
+	public function useCache($cache) {
+		$this->cache = $cache;
+	}
+	
+	public function validateUrl($url) {
+		$url = filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_REQUIRED);
+		if ($url !== false && $url !== null && preg_match('!^https?://!', $url)) {
+			return filter_var($url, FILTER_SANITIZE_URL);
+		} else {
+			return false;
+		}
+	}
+	
+	public function isCached($url) {
+		if (!isset($this->cache)) return false;
+		return ($this->cache->test(md5($url)) !== false);
+	}
+	
+	public function getCached($url) {
+		$cached = $this->cache->load(md5($url));
+		$cached['fromCache'] = true;
+		return $cached;
+	}
+	
+	public function cache($url) {
+		if (isset($this->cache) && !isset($this->requests[$url]['fromCache']) && isset($this->requests[$url]['body'])) {
+			$this->debug("Saving to cache ($url)");
+			$res = $this->cache->save($this->requests[$url], md5($url));
+			//$res = @file_put_contents($this->cacheFolder.'/'.md5($url).'.txt', serialize($this->requests[$url]));
+			return ($res !== false);
+		}
+		return false;
+	}	
+	
+	public function cacheAll() {
+		if (isset($this->cache)) {
+			foreach (array_keys($this->requests) as $url) {
+				$this->cache($url);
+			}
+			return true;
+		}
+		return false;
+	}
+	
+	public function fetchAll(array $urls) {
+		$urls = array_unique($urls);
+		// parallel
+		if (count($urls) > 1 && $this->parallelSupport() && $this->maxParallelRequests > 1) {
+			$this->debug('Starting parallel fetch');
+			try {
+				while (count($urls) > 0) {
+					$this->debug('Processing set of '.$this->maxParallelRequests);
+					$subset = array_splice($urls, 0, $this->maxParallelRequests);
+					$pool = new HttpRequestPool();
+					foreach ($subset as $url) {
+						$this->debug("...$url");
+						if (isset($this->requests[$url])) {
+							$this->debug("......in memory");
+						} elseif ($this->isCached($url)) {
+							$this->debug("......is cached");
+							if (!$this->minimiseMemoryUse) {
+								$this->requests[$url] = $this->getCached($url);
+							}
+						} else {
+							$this->debug("......adding to pool");
+							$httpRequest = new HttpRequest($url, HttpRequest::METH_GET, $this->requestOptions);
+							$this->requests[$url] = array('headers'=>null, 'body'=>null, 'httpRequest'=>$httpRequest);
+							$pool->attach($httpRequest);
+						}
+					}
+					// did we get anything into the pool?
+					if (count($pool) > 0) {
+						$this->debug('Sending request...');
+						$pool->send();
+						$this->debug('Received responses');
+						foreach($subset as $url) {
+							if (!isset($this->requests[$url]['fromCache'])) {
+								$request = $this->requests[$url]['httpRequest'];
+								$this->requests[$url]['headers'] = $this->headersToString($request->getResponseHeader());
+								$this->requests[$url]['body'] = $request->getResponseBody();
+								$this->requests[$url]['effective_url'] = $request->getResponseInfo('effective_url');
+								//die($url.' -multi- '.$request->getResponseInfo('effective_url'));
+								$pool->detach($request);
+								unset($this->requests[$url]['httpRequest'], $request);
+								if ($this->minimiseMemoryUse) {
+									if ($this->cache($url)) {
+										unset($this->requests[$url]);
+									}
+								}
+							}
+						}
+					}
+				}
+			} catch (HttpException $e) {
+				$this->debug($e);
+				return false;
+			}
+		// sequential
+		} else {
+			$this->debug('Starting sequential fetch...');
+			foreach($urls as $url) {
+				$this->get($url);
+			}
+		}
+	}
+	
+	protected function headersToString(array $headers, $associative=true) {
+		if (!$associative) {
+			return implode("\n", $headers);
+		} else {
+			$str = '';
+			foreach ($headers as $key => $val) {
+				if (is_array($val)) {
+					foreach ($val as $v) $str .= "$key: $v\n";
+				} else {
+					$str .= "$key: $val\n";
+				}
+			}
+			return rtrim($str);
+		}
+	}
+	
+	protected function getRedirectUrl($header) {
+		if (is_array($header)) $header = implode("\n", $header);
+		if (!$header || !preg_match_all('!^Location:\s*(https?://.+)!im', $header, $match, PREG_SET_ORDER)) {
+			// error parsing the response
+			return false;
+		} else {
+			$match = end($match); // get last matched element (in case of redirects)
+			return $match[1];
+		}			
+	}
+	
+	public function get($url) {
+		if (isset($this->requests[$url]) && isset($this->requests[$url]['body'])) {
+			$this->debug("URL already fetched - in memory ($url)");
+			$response = $this->requests[$url];
+		} elseif ($this->isCached($url)) {
+			$this->debug("URL already fetched - in disk cache ($url)");
+			$response = $this->getCached($url);
+			$this->requests[$url] = $response;
+		} else {
+			$this->debug("Fetching URL ($url)");
+			if ($html = @file_get_contents($url, false, $this->httpContext)) {
+				$header = $this->headersToString($http_response_header, false);
+				$response = array('headers'=>$header, 'body'=>$html);
+				if ($last_url = $this->getRedirectUrl($header)) {
+					$response['effective_url'] = $last_url;
+					//die($url .' -single- '. $response['effective_url']);
+				} else {
+					$response['effective_url'] = $url;
+				}
+				$this->requests[$url] = $response;
+			} else {
+				$response = false;
+			}
+		}
+		if ($this->minimiseMemoryUse && $response) {
+			$this->cache($url);
+			unset($this->requests[$url]);
+		}
+		return $response;
+	}
+	
+	public function parallelSupport() {
+		return $this->parallelSupport;
+	}
+}
+?>

libraries/iri/LICENSE

@@ -0,0 +1,26 @@
+Copyright (c) 2007, Geoffrey Sneddon and Steve Minutillo.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are 
+permitted provided that the following conditions are met:
+
+	* Redistributions of source code must retain the above copyright notice, this list of 
+	  conditions and the following disclaimer.
+
+	* Redistributions in binary form must reproduce the above copyright notice, this list 
+	  of conditions and the following disclaimer in the documentation and/or other materials 
+	  provided with the distribution.
+
+	* Neither the name of the SimplePie Team nor the names of its contributors may be used 
+	  to endorse or promote products derived from this software without specific prior 
+	  written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS 
+OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
+AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS 
+AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+POSSIBILITY OF SUCH DAMAGE.

libraries/readability/JSLikeHTMLElement.php

@@ -0,0 +1,110 @@
+<?php
+/**
+* JavaScript-like HTML DOM Element
+*
+* This class extends PHP's DOMElement to allow
+* users to get and set the innerHTML property of
+* HTML elements in the same way it's done in 
+* JavaScript.
+*
+* Example usage:
+* @code
+* require_once 'JSLikeHTMLElement.php';
+* header('Content-Type: text/plain');
+* $doc = new DOMDocument();
+* $doc->registerNodeClass('DOMElement', 'JSLikeHTMLElement');
+* $doc->loadHTML('<div><p>Para 1</p><p>Para 2</p></div>');
+* $elem = $doc->getElementsByTagName('div')->item(0);
+* 
+* // print innerHTML
+* echo $elem->innerHTML; // prints '<p>Para 1</p><p>Para 2</p>'
+* echo "\n\n";
+* 
+* // set innerHTML
+* $elem->innerHTML = '<a href="http://fivefilters.org">FiveFilters.org</a>';
+* echo $elem->innerHTML; // prints '<a href="http://fivefilters.org">FiveFilters.org</a>'
+* echo "\n\n";
+* 
+* // print document (with our changes)
+* echo $doc->saveXML();
+* @endcode
+*
+* @author Keyvan Minoukadeh - http://www.keyvan.net - keyvan@keyvan.net
+* @see http://fivefilters.org (the project this was written for)
+*/
+class JSLikeHTMLElement extends DOMElement
+{
+	/**
+	* Used for setting innerHTML like it's done in JavaScript:
+	* @code
+	* $div->innerHTML = '<h2>Chapter 2</h2><p>The story begins...</p>';
+	* @endcode
+	*/
+	public function __set($name, $value) {
+		if ($name == 'innerHTML') {
+			// first, empty the element
+			for ($x=$this->childNodes->length-1; $x>=0; $x--) {
+				$this->removeChild($this->childNodes->item($x));
+			}
+			// $value holds our new inner HTML
+			if ($value != '') {
+				$f = $this->ownerDocument->createDocumentFragment();
+				// appendXML() expects well-formed markup (XHTML)
+				$result = @$f->appendXML($value); // @ to suppress PHP warnings
+				if ($result) {
+					if ($f->hasChildNodes()) $this->appendChild($f);
+				} else {
+					// $value is probably ill-formed
+					$f = new DOMDocument();
+					$value = mb_convert_encoding($value, 'HTML-ENTITIES', 'UTF-8');
+					// Using <htmlfragment> will generate a warning, but so will bad HTML
+					// (and by this point, bad HTML is what we've got).
+					// We use it (and suppress the warning) because an HTML fragment will 
+					// be wrapped around <html><body> tags which we don't really want to keep.
+					// Note: despite the warning, if loadHTML succeeds it will return true.
+					$result = @$f->loadHTML('<htmlfragment>'.$value.'</htmlfragment>');
+					if ($result) {
+						$import = $f->getElementsByTagName('htmlfragment')->item(0);
+						foreach ($import->childNodes as $child) {
+							$importedNode = $this->ownerDocument->importNode($child, true);
+							$this->appendChild($importedNode);
+						}
+					} else {
+						// oh well, we tried, we really did. :(
+						// this element is now empty
+					}
+				}
+			}
+		} else {
+			$trace = debug_backtrace();
+			trigger_error('Undefined property via __set(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);
+		}
+	}
+
+	/**
+	* Used for getting innerHTML like it's done in JavaScript:
+	* @code
+	* $string = $div->innerHTML;
+	* @endcode
+	*/	
+	public function __get($name)
+	{
+		if ($name == 'innerHTML') {
+			$inner = '';
+			foreach ($this->childNodes as $child) {
+				$inner .= $this->ownerDocument->saveXML($child);
+			}
+			return $inner;
+		}
+
+		$trace = debug_backtrace();
+		trigger_error('Undefined property via __get(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);
+		return null;
+	}
+
+	public function __toString()
+	{
+		return '['.$this->tagName.']';
+	}
+}
+?>

libraries/readability/examples/JSLikeHTMLElement.php

@@ -0,0 +1,20 @@
+<?php
+require_once '../JSLikeHTMLElement.php';
+header('Content-Type: text/plain');
+$doc = new DOMDocument();
+$doc->registerNodeClass('DOMElement', 'JSLikeHTMLElement');
+$doc->loadHTML('<div><p>Para 1</p><p>Para 2</p></div>');
+$elem = $doc->getElementsByTagName('div')->item(0);
+
+// print innerHTML
+echo $elem->innerHTML; // prints '<p>Para 1</p><p>Para 2</p>'
+echo "\n\n";
+
+// set innerHTML
+$elem->innerHTML = '<a href="http://fivefilters.org">FiveFilters.org</a>';
+echo $elem->innerHTML; // prints '<a href="http://fivefilters.org">FiveFilters.org</a>'
+echo "\n\n";
+
+// print document (with our changes)
+echo $doc->saveXML();
+?>

libraries/readability/examples/Readability.php

@@ -0,0 +1,41 @@
+<?php
+require_once '../Readability.php';
+header('Content-Type: text/plain; charset=utf-8');
+
+// get latest Medialens alert 
+// (change this URL to whatever you'd like to test)
+$url = 'http://medialens.org/alerts/index.php';
+$html = file_get_contents($url);
+
+// Note: PHP Readability expects UTF-8 encoded content.
+// If your content is not UTF-8 encoded, convert it 
+// first before passing it to PHP Readability. 
+// Both iconv() and mb_convert_encoding() can do this.
+
+// give it to Readability
+$readability = new Readability($html, $url);
+// print debug output? 
+// useful to compare against Arc90's original JS version - 
+// simply click the bookmarklet with FireBug's console window open
+$readability->debug = false;
+// convert links to footnotes?
+$readability->convertLinksToFootnotes = true;
+// process it
+$result = $readability->init();
+// does it look like we found what we wanted?
+if ($result) {
+	echo "== Title =====================================\n";
+	echo $readability->getTitle()->textContent, "\n\n";
+	echo "== Body ======================================\n";
+	$content = $readability->getContent()->innerHTML;
+	// if we've got Tidy, let's clean it up for output
+	if (function_exists('tidy_parse_string')) {
+		$tidy = tidy_parse_string($content, array('indent'=>true, 'show-body-only' => true), 'UTF8');
+		$tidy->cleanRepair();
+		$content = $tidy->value;
+	}
+	echo $content;
+} else {
+	echo 'Looks like we couldn\'t find the content. :(';
+}
+?>

libraries/simplepie/LICENSE.txt

@@ -0,0 +1,26 @@
+Copyright (c) 2004-2007, Ryan Parman and Geoffrey Sneddon.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are 
+permitted provided that the following conditions are met:
+
+	* Redistributions of source code must retain the above copyright notice, this list of 
+	  conditions and the following disclaimer.
+
+	* Redistributions in binary form must reproduce the above copyright notice, this list 
+	  of conditions and the following disclaimer in the documentation and/or other materials 
+	  provided with the distribution.
+
+	* Neither the name of the SimplePie Team nor the names of its contributors may be used 
+	  to endorse or promote products derived from this software without specific prior 
+	  written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS 
+OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
+AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS 
+AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+POSSIBILITY OF SUCH DAMAGE.

libraries/simplepie/README.txt

@@ -0,0 +1,30 @@
+SIMPLEPIE
+http://simplepie.org
+By Ryan Parman and Geoffrey Sneddon
+
+BSD-LICENSED
+http://www.opensource.org/licenses/bsd-license.php
+
+WHAT COMES IN THE PACKAGE?
+1) simplepie.inc - The SimplePie library.  This is all that's required for your pages.
+2) README.txt - This document.
+3) LICENSE.txt - A copy of the BSD license.
+4) compatibility_test - The SimplePie compatibility test that checks your server for required settings.
+5) demo - A basic feed reader demo that shows off some of SimplePie's more noticable features.
+6) idn - A third-party library that SimplePie can optionally use to understand Internationalized Domain Names (IDNs).
+7) test - SimplePie's unit test suite. This is only available in SVN builds.
+
+TO START THE DEMO:
+1) Upload this package to your webserver.
+2) Make sure that the cache folder inside of the demo folder is server-writable.
+3) Navigate your browser to the demo folder.
+
+SUPPORT:
+For further setup and install documentation, function references, etc., visit:
+http://simplepie.org/wiki/
+
+For bug reports, feature requests and other support, visit:
+http://simplepie.org/support/
+
+For more insight on SimplePie development, visit:
+http://simplepie.org/development/

libraries/simplepie/compatibility_test/COMPATIBILITY README.txt

@@ -0,0 +1,7 @@
+SIMPLEPIE COMPATIBILITY TEST
+
+1) Upload sp_compatibility_test.php to the web-accessible root of your website.
+For example, if your website is www.example.com, upload it so that you can get 
+to it at www.example.com/sp_compatibility_test.php
+
+2) Open your web browser and go to the page you just uploaded.

libraries/simplepie/create.php

@@ -0,0 +1,163 @@
+<?php
+
+require_once 'simplepie.inc';
+
+function normalize_character_set($charset)
+{
+	return strtolower(preg_replace('/[\x09-\x0D\x20-\x2F\x3A-\x40\x5B-\x60\x7B-\x7E]/', '', $charset));
+}
+
+function build_character_set_list()
+{
+	$file = new SimplePie_File('http://www.iana.org/assignments/character-sets');
+	if (!$file->success && !($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300)))
+	{
+		return false;
+	}
+	else
+	{
+		$data = explode("\n", $file->body);
+		unset($file);
+		
+		foreach ($data as $line)
+		{
+			// New character set
+			if (substr($line, 0, 5) === 'Name:')
+			{
+				// If we already have one, push it on to the array
+				if (isset($aliases))
+				{
+					natcasesort($aliases);
+					for ($i = 0, $count = count($aliases); $i < $count; $i++)
+					{
+						$aliases[$i] = normalize_character_set($aliases[$i]);
+					}
+					$charsets[$preferred] = $aliases;
+				}
+				
+				$start = 5 + strspn($line, "\x09\x0A\x0B\xC\x0D\x20", 5);
+				$chars = strcspn($line, "\x09\x0A\x0B\xC\x0D\x20", $start);
+				$aliases = array(substr($line, $start, $chars));
+				$preferred = end($aliases);
+			}
+			// Another alias
+			elseif(substr($line, 0, 6) === 'Alias:')
+			{
+				$start = 7 + strspn($line, "\x09\x0A\x0B\xC\x0D\x20", 7);
+				$chars = strcspn($line, "\x09\x0A\x0B\xC\x0D\x20", $start);
+				$aliases[] = substr($line, $start, $chars);
+				
+				if (end($aliases) === 'None')
+				{
+					array_pop($aliases);
+				}
+				elseif (substr($line, 7 + $chars + 1, 21) === '(preferred MIME name)')
+				{
+					$preferred = end($aliases);
+				}
+			}
+		}
+		
+		// Compatibility replacements
+		$compat = array(
+			'EUC-KR' => 'Windows-949',
+			'GB2312' => 'GBK',
+			'GB_2312-80' => 'GBK',
+			'ISO-8859-1' => 'Windows-1252',
+			'ISO-8859-9' => 'Windows-1254',
+			'ISO-8859-11' => 'Windows-874',
+			'KS_C_5601-1987' => 'Windows-949',
+			'TIS-620' => 'Windows-874',
+			'x-x-big5' => 'Big5',
+		);
+		
+		foreach ($compat as $real => $replace)
+		{
+			if (isset($charsets[$real]) && isset($charsets[$replace]))
+			{
+				$charsets[$replace] = array_merge($charsets[$replace], $charsets[$real]);
+				unset($charsets[$real]);
+			}
+			elseif (isset($charsets[$real]))
+			{
+				$charsets[$replace] = $charsets[$real];
+				$charsets[$replace][] = normalize_character_set($replace);
+				$charsets[$replace] = array_unique($charsets[$replace]);
+				unset($charsets[$real]);
+			}
+			else
+			{
+				$charsets[$replace][] = normalize_character_set($real);
+			}
+		}
+		
+		// Sort it
+		uksort($charsets, 'strnatcasecmp');
+		
+		// And we're done!
+		return $charsets;
+	}
+}
+
+function charset($charset)
+{
+	$normalized_charset = normalize_character_set($charset);
+	if ($charsets = build_character_set_list())
+	{
+		foreach ($charsets as $preferred => $aliases)
+		{
+			if (in_array($normalized_charset, $aliases))
+			{
+				return $preferred;
+			}
+		}
+		return $charset;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+function build_function()
+{
+	if ($charsets = build_character_set_list())
+	{
+		$return = <<<EOF
+function charset(\$charset)
+{
+	/* Character sets are case-insensitive, and also need some further
+	normalization in the real world (though we'll return them in the form given
+	in their registration). */
+	switch (strtolower(preg_replace('/[\\x09-\\x0D\\x20-\\x2F\\x3A-\\x40\\x5B-\\x60\\x7B-\\x7E]/', '', \$charset)))
+	{
+
+EOF;
+		foreach ($charsets as $preferred => $aliases)
+		{
+			foreach ($aliases as $alias)
+			{
+				$return .= "\t\tcase " . var_export($alias, true) . ":\n";
+			}
+			$return .= "\t\t\treturn " . var_export($preferred, true) . ";\n\n";
+		}
+		$return .= <<<EOF
+		default:
+			return \$charset;
+	}
+}
+EOF;
+		return $return;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+if (php_sapi_name() === 'cli' && realpath($_SERVER['argv'][0]) === __FILE__)
+{
+	echo build_function();
+}
+
+?>

libraries/simplepie/idn/LICENCE

@@ -0,0 +1,502 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+  This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it.  You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
+strategy to use in any particular case, based on the explanations below.
+
+  When we speak of free software, we are referring to freedom of use,
+not price.  Our General Public Licenses are designed to make sure that
+you have the freedom to distribute copies of free software (and charge
+for this service if you wish); that you receive source code or can get
+it if you want it; that you can change the software and use pieces of
+it in new free programs; and that you are informed that you can do
+these things.
+
+  To protect your rights, we need to make restrictions that forbid
+distributors to deny you these rights or to ask you to surrender these
+rights.  These restrictions translate to certain responsibilities for
+you if you distribute copies of the library or if you modify it.
+
+  For example, if you distribute copies of the library, whether gratis
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+it.  And you must show them these terms so they know their rights.
+
+  We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
+permission to copy, distribute and/or modify the library.
+
+  To protect each distributor, we want to make it very clear that
+there is no warranty for the free library.  Also, if the library is
+modified by someone else and passed on, the recipients should know
+that what they have is not the original version, so that the original
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+
+  Finally, software patents pose a constant threat to the existence of
+any free program.  We wish to make sure that a company cannot
+effectively restrict the users of a free program by obtaining a
+restrictive license from a patent holder.  Therefore, we insist that
+any patent license obtained for a version of the library must be
+consistent with the full freedom of use specified in this license.
+
+  Most GNU software, including some libraries, is covered by the
+ordinary GNU General Public License.  This license, the GNU Lesser
+General Public License, applies to certain designated libraries, and
+is quite different from the ordinary General Public License.  We use
+this license for certain libraries in order to permit linking those
+libraries into non-free programs.
+
+  When a program is linked with a library, whether statically or using
+a shared library, the combination of the two is legally speaking a
+combined work, a derivative of the original library.  The ordinary
+General Public License therefore permits such linking only if the
+entire combination fits its criteria of freedom.  The Lesser General
+Public License permits more lax criteria for linking other code with
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+
+  We call this license the "Lesser" General Public License because it
+does Less to protect the user's freedom than the ordinary General
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+
+  For example, on rare occasions, there may be a special need to
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+
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+possible use to the public, we recommend making it free software that
+everyone can redistribute and change.  You can do so by permitting
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+
+  To apply these terms, attach the following notices to the library.  It is
+safest to attach them to the start of each source file to most effectively
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+
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+    Copyright (C) <year>  <name of author>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
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+
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+
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+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!

libraries/simplepie/idn/ReadMe.txt

@@ -0,0 +1,123 @@
+*******************************************************************************
+*                                                                             *
+*                    IDNA Convert (idna_convert.class.php)                    *
+*                                                                             *
+* http://idnaconv.phlymail.de                     mailto:phlymail@phlylabs.de *
+*******************************************************************************
+* (c) 2004-2007 phlyLabs, Berlin                                              *
+* This file is encoded in UTF-8                                               *
+*******************************************************************************
+
+Introduction
+------------
+
+The class idna_convert allows to convert internationalized domain names
+(see RFC 3490, 3491, 3492 and 3454 for detials) as they can be used with various
+registries worldwide to be translated between their original (localized) form
+and their encoded form as it will be used in the DNS (Domain Name System).
+
+The class provides two public methods, encode() and decode(), which do exactly
+what you would expect them to do. You are allowed to use complete domain names,
+simple strings and complete email addresses as well. That means, that you might
+use any of the following notations:
+
+- www.nörgler.com
+- xn--nrgler-wxa
+- xn--brse-5qa.xn--knrz-1ra.info
+
+Errors, incorrectly encoded or invalid strings will lead to either a FALSE
+response (when in strict mode) or to only partially converted strings.
+You can query the occured error by calling the method get_last_error().
+
+Unicode strings are expected to be either UTF-8 strings, UCS-4 strings or UCS-4
+arrays. The default format is UTF-8. For setting different encodings, you can
+call the method setParams() - please see the inline documentation for details.
+ACE strings (the Punycode form) are always 7bit ASCII strings.
+
+ATTENTION: We no longer supply the PHP5 version of the class. It is not
+necessary for achieving a successfull conversion, since the supplied PHP code is
+compatible with both PHP4 and PHP5. We expect to see no compatibility issues
+with the upcoming PHP6, too.
+
+
+Files
+-----
+
+idna_convert.class.php         - The actual class
+idna_convert.create.npdata.php - Useful for (re)creating the NPData file
+npdata.ser                     - Serialized data for NamePrep
+example.php                    - An example web page for converting
+ReadMe.txt                     - This file
+LICENCE                        - The LGPL licence file
+
+The class is contained in idna_convert.class.php.
+MAKE SURE to copy the npdata.ser file into the same folder as the class file
+itself!
+
+
+Examples
+--------
+
+1. Say we wish to encode the domain name nörgler.com:
+
+// Include the class
+include_once('idna_convert.class.php');
+// Instantiate it *
+$IDN = new idna_convert();
+// The input string, if input is not UTF-8 or UCS-4, it must be converted before
+$input = utf8_encode('nörgler.com');
+// Encode it to its punycode presentation
+$output = $IDN->encode($input);
+// Output, what we got now
+echo $output; // This will read: xn--nrgler-wxa.com
+
+
+2. We received an email from a punycoded domain and are willing to learn, how
+   the domain name reads originally
+
+// Include the class
+include_once('idna_convert.class.php');
+// Instantiate it (depending on the version you are using) with
+$IDN = new idna_convert();
+// The input string
+$input = 'andre@xn--brse-5qa.xn--knrz-1ra.info';
+// Encode it to its punycode presentation
+$output = $IDN->decode($input);
+// Output, what we got now, if output should be in a format different to UTF-8
+// or UCS-4, you will have to convert it before outputting it
+echo utf8_decode($output); // This will read: andre@börse.knörz.info
+
+
+3. The input is read from a UCS-4 coded file and encoded line by line. By
+   appending the optional second parameter we tell enode() about the input
+   format to be used
+
+// Include the class
+include_once('idna_convert.class.php');
+// Instantiate it
+$IDN = new dinca_convert();
+// Iterate through the input file line by line
+foreach (file('ucs4-domains.txt') as $line) {
+    echo $IDN->encode(trim($line), 'ucs4_string');
+    echo "\n";
+}
+
+
+NPData
+------
+
+Should you need to recreate the npdata.ser file, which holds all necessary translation
+tables in a serialized format, you can run the file idna_convert.create.npdata.php, which
+creates the file for you and stores it in the same folder, where it is placed.
+Should you need to do changes to the tables you can do so, but beware of the consequences.
+
+
+Contact us
+----------
+
+In case of errors, bugs, questions, wishes, please don't hesitate to contact us
+under the email address above.
+
+The team of phlyLabs
+http://phlylabs.de
+mailto:phlymail@phlylabs.de

libraries/simplepie/idn/idna_convert.class.php

@@ -0,0 +1,969 @@
+<?php
+// {{{ license
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */
+//
+// +----------------------------------------------------------------------+
+// | This library is free software; you can redistribute it and/or modify |
+// | it under the terms of the GNU Lesser General Public License as       |
+// | published by the Free Software Foundation; either version 2.1 of the |
+// | License, or (at your option) any later version.                      |
+// |                                                                      |
+// | This library is distributed in the hope that it will be useful, but  |
+// | WITHOUT ANY WARRANTY; without even the implied warranty of           |
+// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU    |
+// | Lesser General Public License for more details.                      |
+// |                                                                      |
+// | You should have received a copy of the GNU Lesser General Public     |
+// | License along with this library; if not, write to the Free Software  |
+// | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 |
+// | USA.                                                                 |
+// +----------------------------------------------------------------------+
+//
+
+// }}}
+
+/**
+ * Encode/decode Internationalized Domain Names.
+ *
+ * The class allows to convert internationalized domain names
+ * (see RFC 3490 for details) as they can be used with various registries worldwide
+ * to be translated between their original (localized) form and their encoded form
+ * as it will be used in the DNS (Domain Name System).
+ *
+ * The class provides two public methods, encode() and decode(), which do exactly
+ * what you would expect them to do. You are allowed to use complete domain names,
+ * simple strings and complete email addresses as well. That means, that you might
+ * use any of the following notations:
+ *
+ * - www.nörgler.com
+ * - xn--nrgler-wxa
+ * - xn--brse-5qa.xn--knrz-1ra.info
+ *
+ * Unicode input might be given as either UTF-8 string, UCS-4 string or UCS-4
+ * array. Unicode output is available in the same formats.
+ * You can select your preferred format via {@link set_paramter()}.
+ *
+ * ACE input and output is always expected to be ASCII.
+ *
+ * @author  Matthias Sommerfeld <mso@phlylabs.de>
+ * @copyright 2004-2007 phlyLabs Berlin, http://phlylabs.de
+ * @version 0.5.1
+ *
+ */
+class idna_convert
+{
+    /**
+     * Holds all relevant mapping tables, loaded from a seperate file on construct
+     * See RFC3454 for details
+     *
+     * @var array
+     * @access private
+     */
+    var $NP = array();
+
+    // Internal settings, do not mess with them
+    var $_punycode_prefix = 'xn--';
+    var $_invalid_ucs =     0x80000000;
+    var $_max_ucs =         0x10FFFF;
+    var $_base =            36;
+    var $_tmin =            1;
+    var $_tmax =            26;
+    var $_skew =            38;
+    var $_damp =            700;
+    var $_initial_bias =    72;
+    var $_initial_n =       0x80;
+    var $_sbase =           0xAC00;
+    var $_lbase =           0x1100;
+    var $_vbase =           0x1161;
+    var $_tbase =           0x11A7;
+    var $_lcount =          19;
+    var $_vcount =          21;
+    var $_tcount =          28;
+    var $_ncount =          588;   // _vcount * _tcount
+    var $_scount =          11172; // _lcount * _tcount * _vcount
+    var $_error =           false;
+
+    // See {@link set_paramter()} for details of how to change the following
+    // settings from within your script / application
+    var $_api_encoding   =  'utf8'; // Default input charset is UTF-8
+    var $_allow_overlong =  false;  // Overlong UTF-8 encodings are forbidden
+    var $_strict_mode    =  false;  // Behave strict or not
+
+    // The constructor
+    function idna_convert($options = false)
+    {
+        $this->slast = $this->_sbase + $this->_lcount * $this->_vcount * $this->_tcount;
+        if (function_exists('file_get_contents')) {
+            $this->NP = unserialize(file_get_contents(dirname(__FILE__).'/npdata.ser'));
+        } else {
+            $this->NP = unserialize(join('', file(dirname(__FILE__).'/npdata.ser')));
+        }
+        // If parameters are given, pass these to the respective method
+        if (is_array($options)) {
+            return $this->set_parameter($options);
+        }
+        return true;
+    }
+
+    /**
+     * Sets a new option value. Available options and values:
+     * [encoding - Use either UTF-8, UCS4 as array or UCS4 as string as input ('utf8' for UTF-8,
+     *         'ucs4_string' and 'ucs4_array' respectively for UCS4); The output is always UTF-8]
+     * [overlong - Unicode does not allow unnecessarily long encodings of chars,
+     *             to allow this, set this parameter to true, else to false;
+     *             default is false.]
+     * [strict - true: strict mode, good for registration purposes - Causes errors
+     *           on failures; false: loose mode, ideal for "wildlife" applications
+     *           by silently ignoring errors and returning the original input instead
+     *
+     * @param    mixed     Parameter to set (string: single parameter; array of Parameter => Value pairs)
+     * @param    string    Value to use (if parameter 1 is a string)
+     * @return   boolean   true on success, false otherwise
+     * @access   public
+     */
+    function set_parameter($option, $value = false)
+    {
+        if (!is_array($option)) {
+            $option = array($option => $value);
+        }
+        foreach ($option as $k => $v) {
+            switch ($k) {
+            case 'encoding':
+                switch ($v) {
+                case 'utf8':
+                case 'ucs4_string':
+                case 'ucs4_array':
+                    $this->_api_encoding = $v;
+                    break;
+                default:
+                    $this->_error('Set Parameter: Unknown parameter '.$v.' for option '.$k);
+                    return false;
+                }
+                break;
+            case 'overlong':
+                $this->_allow_overlong = ($v) ? true : false;
+                break;
+            case 'strict':
+                $this->_strict_mode = ($v) ? true : false;
+                break;
+            default:
+                $this->_error('Set Parameter: Unknown option '.$k);
+                return false;
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Decode a given ACE domain name
+     * @param    string   Domain name (ACE string)
+     * [@param    string   Desired output encoding, see {@link set_parameter}]
+     * @return   string   Decoded Domain name (UTF-8 or UCS-4)
+     * @access   public
+     */
+    function decode($input, $one_time_encoding = false)
+    {
+        // Optionally set
+        if ($one_time_encoding) {
+            switch ($one_time_encoding) {
+            case 'utf8':
+            case 'ucs4_string':
+            case 'ucs4_array':
+                break;
+            default:
+                $this->_error('Unknown encoding '.$one_time_encoding);
+                return false;
+            }
+        }
+        // Make sure to drop any newline characters around
+        $input = trim($input);
+
+        // Negotiate input and try to determine, whether it is a plain string,
+        // an email address or something like a complete URL
+        if (strpos($input, '@')) { // Maybe it is an email address
+            // No no in strict mode
+            if ($this->_strict_mode) {
+                $this->_error('Only simple domain name parts can be handled in strict mode');
+                return false;
+            }
+            list ($email_pref, $input) = explode('@', $input, 2);
+            $arr = explode('.', $input);
+            foreach ($arr as $k => $v) {
+                if (preg_match('!^'.preg_quote($this->_punycode_prefix, '!').'!', $v)) {
+                    $conv = $this->_decode($v);
+                    if ($conv) $arr[$k] = $conv;
+                }
+            }
+            $input = join('.', $arr);
+            $arr = explode('.', $email_pref);
+            foreach ($arr as $k => $v) {
+                if (preg_match('!^'.preg_quote($this->_punycode_prefix, '!').'!', $v)) {
+                    $conv = $this->_decode($v);
+                    if ($conv) $arr[$k] = $conv;
+                }
+            }
+            $email_pref = join('.', $arr);
+            $return = $email_pref . '@' . $input;
+        } elseif (preg_match('![:\./]!', $input)) { // Or a complete domain name (with or without paths / parameters)
+            // No no in strict mode
+            if ($this->_strict_mode) {
+                $this->_error('Only simple domain name parts can be handled in strict mode');
+                return false;
+            }
+            $parsed = parse_url($input);
+            if (isset($parsed['host'])) {
+                $arr = explode('.', $parsed['host']);
+                foreach ($arr as $k => $v) {
+                    $conv = $this->_decode($v);
+                    if ($conv) $arr[$k] = $conv;
+                }
+                $parsed['host'] = join('.', $arr);
+                $return =
+                        (empty($parsed['scheme']) ? '' : $parsed['scheme'].(strtolower($parsed['scheme']) == 'mailto' ? ':' : '://'))
+                        .(empty($parsed['user']) ? '' : $parsed['user'].(empty($parsed['pass']) ? '' : ':'.$parsed['pass']).'@')
+                        .$parsed['host']
+                        .(empty($parsed['port']) ? '' : ':'.$parsed['port'])
+                        .(empty($parsed['path']) ? '' : $parsed['path'])
+                        .(empty($parsed['query']) ? '' : '?'.$parsed['query'])
+                        .(empty($parsed['fragment']) ? '' : '#'.$parsed['fragment']);
+            } else { // parse_url seems to have failed, try without it
+                $arr = explode('.', $input);
+                foreach ($arr as $k => $v) {
+                    $conv = $this->_decode($v);
+                    $arr[$k] = ($conv) ? $conv : $v;
+                }
+                $return = join('.', $arr);
+            }
+        } else { // Otherwise we consider it being a pure domain name string
+            $return = $this->_decode($input);
+            if (!$return) $return = $input;
+        }
+        // The output is UTF-8 by default, other output formats need conversion here
+        // If one time encoding is given, use this, else the objects property
+        switch (($one_time_encoding) ? $one_time_encoding : $this->_api_encoding) {
+        case 'utf8':
+            return $return;
+            break;
+        case 'ucs4_string':
+           return $this->_ucs4_to_ucs4_string($this->_utf8_to_ucs4($return));
+           break;
+        case 'ucs4_array':
+            return $this->_utf8_to_ucs4($return);
+            break;
+        default:
+            $this->_error('Unsupported output format');
+            return false;
+        }
+    }
+
+    /**
+     * Encode a given UTF-8 domain name
+     * @param    string   Domain name (UTF-8 or UCS-4)
+     * [@param    string   Desired input encoding, see {@link set_parameter}]
+     * @return   string   Encoded Domain name (ACE string)
+     * @access   public
+     */
+    function encode($decoded, $one_time_encoding = false)
+    {
+        // Forcing conversion of input to UCS4 array
+        // If one time encoding is given, use this, else the objects property
+        switch ($one_time_encoding ? $one_time_encoding : $this->_api_encoding) {
+        case 'utf8':
+            $decoded = $this->_utf8_to_ucs4($decoded);
+            break;
+        case 'ucs4_string':
+           $decoded = $this->_ucs4_string_to_ucs4($decoded);
+        case 'ucs4_array':
+           break;
+        default:
+            $this->_error('Unsupported input format: '.($one_time_encoding ? $one_time_encoding : $this->_api_encoding));
+            return false;
+        }
+
+        // No input, no output, what else did you expect?
+        if (empty($decoded)) return '';
+
+        // Anchors for iteration
+        $last_begin = 0;
+        // Output string
+        $output = '';
+        foreach ($decoded as $k => $v) {
+            // Make sure to use just the plain dot
+            switch($v) {
+            case 0x3002:
+            case 0xFF0E:
+            case 0xFF61:
+                $decoded[$k] = 0x2E;
+                // Right, no break here, the above are converted to dots anyway
+            // Stumbling across an anchoring character
+            case 0x2E:
+            case 0x2F:
+            case 0x3A:
+            case 0x3F:
+            case 0x40:
+                // Neither email addresses nor URLs allowed in strict mode
+                if ($this->_strict_mode) {
+                   $this->_error('Neither email addresses nor URLs are allowed in strict mode.');
+                   return false;
+                } else {
+                    // Skip first char
+                    if ($k) {
+                        $encoded = '';
+                        $encoded = $this->_encode(array_slice($decoded, $last_begin, (($k)-$last_begin)));
+                        if ($encoded) {
+                            $output .= $encoded;
+                        } else {
+                            $output .= $this->_ucs4_to_utf8(array_slice($decoded, $last_begin, (($k)-$last_begin)));
+                        }
+                        $output .= chr($decoded[$k]);
+                    }
+                    $last_begin = $k + 1;
+                }
+            }
+        }
+        // Catch the rest of the string
+        if ($last_begin) {
+            $inp_len = sizeof($decoded);
+            $encoded = '';
+            $encoded = $this->_encode(array_slice($decoded, $last_begin, (($inp_len)-$last_begin)));
+            if ($encoded) {
+                $output .= $encoded;
+            } else {
+                $output .= $this->_ucs4_to_utf8(array_slice($decoded, $last_begin, (($inp_len)-$last_begin)));
+            }
+            return $output;
+        } else {
+            if ($output = $this->_encode($decoded)) {
+                return $output;
+            } else {
+                return $this->_ucs4_to_utf8($decoded);
+            }
+        }
+    }
+
+    /**
+     * Use this method to get the last error ocurred
+     * @param    void
+     * @return   string   The last error, that occured
+     * @access   public
+     */
+    function get_last_error()
+    {
+        return $this->_error;
+    }
+
+    /**
+     * The actual decoding algorithm
+     * @access   private
+     */
+    function _decode($encoded)
+    {
+        // We do need to find the Punycode prefix
+        if (!preg_match('!^'.preg_quote($this->_punycode_prefix, '!').'!', $encoded)) {
+            $this->_error('This is not a punycode string');
+            return false;
+        }
+        $encode_test = preg_replace('!^'.preg_quote($this->_punycode_prefix, '!').'!', '', $encoded);
+        // If nothing left after removing the prefix, it is hopeless
+        if (!$encode_test) {
+            $this->_error('The given encoded string was empty');
+            return false;
+        }
+        // Find last occurence of the delimiter
+        $delim_pos = strrpos($encoded, '-');
+        if ($delim_pos > strlen($this->_punycode_prefix)) {
+            for ($k = strlen($this->_punycode_prefix); $k < $delim_pos; ++$k) {
+                $decoded[] = ord($encoded{$k});
+            }
+        } else {
+            $decoded = array();
+        }
+        $deco_len = count($decoded);
+        $enco_len = strlen($encoded);
+
+        // Wandering through the strings; init
+        $is_first = true;
+        $bias     = $this->_initial_bias;
+        $idx      = 0;
+        $char     = $this->_initial_n;
+
+        for ($enco_idx = ($delim_pos) ? ($delim_pos + 1) : 0; $enco_idx < $enco_len; ++$deco_len) {
+            for ($old_idx = $idx, $w = 1, $k = $this->_base; 1 ; $k += $this->_base) {
+                $digit = $this->_decode_digit($encoded{$enco_idx++});
+                $idx += $digit * $w;
+                $t = ($k <= $bias) ? $this->_tmin :
+                        (($k >= $bias + $this->_tmax) ? $this->_tmax : ($k - $bias));
+                if ($digit < $t) break;
+                $w = (int) ($w * ($this->_base - $t));
+            }
+            $bias = $this->_adapt($idx - $old_idx, $deco_len + 1, $is_first);
+            $is_first = false;
+            $char += (int) ($idx / ($deco_len + 1));
+            $idx %= ($deco_len + 1);
+            if ($deco_len > 0) {
+                // Make room for the decoded char
+                for ($i = $deco_len; $i > $idx; $i--) {
+                    $decoded[$i] = $decoded[($i - 1)];
+                }
+            }
+            $decoded[$idx++] = $char;
+        }
+        return $this->_ucs4_to_utf8($decoded);
+    }
+
+    /**
+     * The actual encoding algorithm
+     * @access   private
+     */
+    function _encode($decoded)
+    {
+        // We cannot encode a domain name containing the Punycode prefix
+        $extract = strlen($this->_punycode_prefix);
+        $check_pref = $this->_utf8_to_ucs4($this->_punycode_prefix);
+        $check_deco = array_slice($decoded, 0, $extract);
+
+        if ($check_pref == $check_deco) {
+            $this->_error('This is already a punycode string');
+            return false;
+        }
+        // We will not try to encode strings consisting of basic code points only
+        $encodable = false;
+        foreach ($decoded as $k => $v) {
+            if ($v > 0x7a) {
+                $encodable = true;
+                break;
+            }
+        }
+        if (!$encodable) {
+            $this->_error('The given string does not contain encodable chars');
+            return false;
+        }
+
+        // Do NAMEPREP
+        $decoded = $this->_nameprep($decoded);
+        if (!$decoded || !is_array($decoded)) return false; // NAMEPREP failed
+
+        $deco_len  = count($decoded);
+        if (!$deco_len) return false; // Empty array
+
+        $codecount = 0; // How many chars have been consumed
+
+        $encoded = '';
+        // Copy all basic code points to output
+        for ($i = 0; $i < $deco_len; ++$i) {
+            $test = $decoded[$i];
+            // Will match [-0-9a-zA-Z]
+            if ((0x2F < $test && $test < 0x40) || (0x40 < $test && $test < 0x5B)
+                    || (0x60 < $test && $test <= 0x7B) || (0x2D == $test)) {
+                $encoded .= chr($decoded[$i]);
+                $codecount++;
+            }
+        }
+        if ($codecount == $deco_len) return $encoded; // All codepoints were basic ones
+
+        // Start with the prefix; copy it to output
+        $encoded = $this->_punycode_prefix.$encoded;
+
+        // If we have basic code points in output, add an hyphen to the end
+        if ($codecount) $encoded .= '-';
+
+        // Now find and encode all non-basic code points
+        $is_first  = true;
+        $cur_code  = $this->_initial_n;
+        $bias      = $this->_initial_bias;
+        $delta     = 0;
+        while ($codecount < $deco_len) {
+            // Find the smallest code point >= the current code point and
+            // remember the last ouccrence of it in the input
+            for ($i = 0, $next_code = $this->_max_ucs; $i < $deco_len; $i++) {
+                if ($decoded[$i] >= $cur_code && $decoded[$i] <= $next_code) {
+                    $next_code = $decoded[$i];
+                }
+            }
+
+            $delta += ($next_code - $cur_code) * ($codecount + 1);
+            $cur_code = $next_code;
+
+            // Scan input again and encode all characters whose code point is $cur_code
+            for ($i = 0; $i < $deco_len; $i++) {
+                if ($decoded[$i] < $cur_code) {
+                    $delta++;
+                } elseif ($decoded[$i] == $cur_code) {
+                    for ($q = $delta, $k = $this->_base; 1; $k += $this->_base) {
+                        $t = ($k <= $bias) ? $this->_tmin :
+                                (($k >= $bias + $this->_tmax) ? $this->_tmax : $k - $bias);
+                        if ($q < $t) break;
+                        $encoded .= $this->_encode_digit(intval($t + (($q - $t) % ($this->_base - $t)))); //v0.4.5 Changed from ceil() to intval()
+                        $q = (int) (($q - $t) / ($this->_base - $t));
+                    }
+                    $encoded .= $this->_encode_digit($q);
+                    $bias = $this->_adapt($delta, $codecount+1, $is_first);
+                    $codecount++;
+                    $delta = 0;
+                    $is_first = false;
+                }
+            }
+            $delta++;
+            $cur_code++;
+        }
+        return $encoded;
+    }
+
+    /**
+     * Adapt the bias according to the current code point and position
+     * @access   private
+     */
+    function _adapt($delta, $npoints, $is_first)
+    {
+        $delta = intval($is_first ? ($delta / $this->_damp) : ($delta / 2));
+        $delta += intval($delta / $npoints);
+        for ($k = 0; $delta > (($this->_base - $this->_tmin) * $this->_tmax) / 2; $k += $this->_base) {
+            $delta = intval($delta / ($this->_base - $this->_tmin));
+        }
+        return intval($k + ($this->_base - $this->_tmin + 1) * $delta / ($delta + $this->_skew));
+    }
+
+    /**
+     * Encoding a certain digit
+     * @access   private
+     */
+    function _encode_digit($d)
+    {
+        return chr($d + 22 + 75 * ($d < 26));
+    }
+
+    /**
+     * Decode a certain digit
+     * @access   private
+     */
+    function _decode_digit($cp)
+    {
+        $cp = ord($cp);
+        return ($cp - 48 < 10) ? $cp - 22 : (($cp - 65 < 26) ? $cp - 65 : (($cp - 97 < 26) ? $cp - 97 : $this->_base));
+    }
+
+    /**
+     * Internal error handling method
+     * @access   private
+     */
+    function _error($error = '')
+    {
+        $this->_error = $error;
+    }
+
+    /**
+     * Do Nameprep according to RFC3491 and RFC3454
+     * @param    array    Unicode Characters
+     * @return   string   Unicode Characters, Nameprep'd
+     * @access   private
+     */
+    function _nameprep($input)
+    {
+        $output = array();
+        $error = false;
+        //
+        // Mapping
+        // Walking through the input array, performing the required steps on each of
+        // the input chars and putting the result into the output array
+        // While mapping required chars we apply the cannonical ordering
+        foreach ($input as $v) {
+            // Map to nothing == skip that code point
+            if (in_array($v, $this->NP['map_nothing'])) continue;
+
+            // Try to find prohibited input
+            if (in_array($v, $this->NP['prohibit']) || in_array($v, $this->NP['general_prohibited'])) {
+                $this->_error('NAMEPREP: Prohibited input U+'.sprintf('%08X', $v));
+                return false;
+            }
+            foreach ($this->NP['prohibit_ranges'] as $range) {
+                if ($range[0] <= $v && $v <= $range[1]) {
+                    $this->_error('NAMEPREP: Prohibited input U+'.sprintf('%08X', $v));
+                    return false;
+                }
+            }
+            //
+            // Hangul syllable decomposition
+            if (0xAC00 <= $v && $v <= 0xD7AF) {
+                foreach ($this->_hangul_decompose($v) as $out) {
+                    $output[] = (int) $out;
+                }
+            // There's a decomposition mapping for that code point
+            } elseif (isset($this->NP['replacemaps'][$v])) {
+                foreach ($this->_apply_cannonical_ordering($this->NP['replacemaps'][$v]) as $out) {
+                    $output[] = (int) $out;
+                }
+            } else {
+                $output[] = (int) $v;
+            }
+        }
+        // Before applying any Combining, try to rearrange any Hangul syllables
+        $output = $this->_hangul_compose($output);
+        //
+        // Combine code points
+        //
+        $last_class   = 0;
+        $last_starter = 0;
+        $out_len      = count($output);
+        for ($i = 0; $i < $out_len; ++$i) {
+            $class = $this->_get_combining_class($output[$i]);
+            if ((!$last_class || $last_class > $class) && $class) {
+                // Try to match
+                $seq_len = $i - $last_starter;
+                $out = $this->_combine(array_slice($output, $last_starter, $seq_len));
+                // On match: Replace the last starter with the composed character and remove
+                // the now redundant non-starter(s)
+                if ($out) {
+                    $output[$last_starter] = $out;
+                    if (count($out) != $seq_len) {
+                        for ($j = $i+1; $j < $out_len; ++$j) {
+                            $output[$j-1] = $output[$j];
+                        }
+                        unset($output[$out_len]);
+                    }
+                    // Rewind the for loop by one, since there can be more possible compositions
+                    $i--;
+                    $out_len--;
+                    $last_class = ($i == $last_starter) ? 0 : $this->_get_combining_class($output[$i-1]);
+                    continue;
+                }
+            }
+            // The current class is 0
+            if (!$class) $last_starter = $i;
+            $last_class = $class;
+        }
+        return $output;
+    }
+
+    /**
+     * Decomposes a Hangul syllable
+     * (see http://www.unicode.org/unicode/reports/tr15/#Hangul
+     * @param    integer  32bit UCS4 code point
+     * @return   array    Either Hangul Syllable decomposed or original 32bit value as one value array
+     * @access   private
+     */
+    function _hangul_decompose($char)
+    {
+        $sindex = (int) $char - $this->_sbase;
+        if ($sindex < 0 || $sindex >= $this->_scount) {
+            return array($char);
+        }
+        $result = array();
+        $result[] = (int) $this->_lbase + $sindex / $this->_ncount;
+        $result[] = (int) $this->_vbase + ($sindex % $this->_ncount) / $this->_tcount;
+        $T = intval($this->_tbase + $sindex % $this->_tcount);
+        if ($T != $this->_tbase) $result[] = $T;
+        return $result;
+    }
+    /**
+     * Ccomposes a Hangul syllable
+     * (see http://www.unicode.org/unicode/reports/tr15/#Hangul
+     * @param    array    Decomposed UCS4 sequence
+     * @return   array    UCS4 sequence with syllables composed
+     * @access   private
+     */
+    function _hangul_compose($input)
+    {
+        $inp_len = count($input);
+        if (!$inp_len) return array();
+        $result = array();
+        $last = (int) $input[0];
+        $result[] = $last; // copy first char from input to output
+
+        for ($i = 1; $i < $inp_len; ++$i) {
+            $char = (int) $input[$i];
+            $sindex = $last - $this->_sbase;
+            $lindex = $last - $this->_lbase;
+            $vindex = $char - $this->_vbase;
+            $tindex = $char - $this->_tbase;
+            // Find out, whether two current characters are LV and T
+            if (0 <= $sindex && $sindex < $this->_scount && ($sindex % $this->_tcount == 0)
+                    && 0 <= $tindex && $tindex <= $this->_tcount) {
+                // create syllable of form LVT
+                $last += $tindex;
+                $result[(count($result) - 1)] = $last; // reset last
+                continue; // discard char
+            }
+            // Find out, whether two current characters form L and V
+            if (0 <= $lindex && $lindex < $this->_lcount && 0 <= $vindex && $vindex < $this->_vcount) {
+                // create syllable of form LV
+                $last = (int) $this->_sbase + ($lindex * $this->_vcount + $vindex) * $this->_tcount;
+                $result[(count($result) - 1)] = $last; // reset last
+                continue; // discard char
+            }
+            // if neither case was true, just add the character
+            $last = $char;
+            $result[] = $char;
+        }
+        return $result;
+    }
+
+    /**
+     * Returns the combining class of a certain wide char
+     * @param    integer    Wide char to check (32bit integer)
+     * @return   integer    Combining class if found, else 0
+     * @access   private
+     */
+    function _get_combining_class($char)
+    {
+        return isset($this->NP['norm_combcls'][$char]) ? $this->NP['norm_combcls'][$char] : 0;
+    }
+
+    /**
+     * Apllies the cannonical ordering of a decomposed UCS4 sequence
+     * @param    array      Decomposed UCS4 sequence
+     * @return   array      Ordered USC4 sequence
+     * @access   private
+     */
+    function _apply_cannonical_ordering($input)
+    {
+        $swap = true;
+        $size = count($input);
+        while ($swap) {
+            $swap = false;
+            $last = $this->_get_combining_class(intval($input[0]));
+            for ($i = 0; $i < $size-1; ++$i) {
+                $next = $this->_get_combining_class(intval($input[$i+1]));
+                if ($next != 0 && $last > $next) {
+                    // Move item leftward until it fits
+                    for ($j = $i + 1; $j > 0; --$j) {
+                        if ($this->_get_combining_class(intval($input[$j-1])) <= $next) break;
+                        $t = intval($input[$j]);
+                        $input[$j] = intval($input[$j-1]);
+                        $input[$j-1] = $t;
+                        $swap = true;
+                    }
+                    // Reentering the loop looking at the old character again
+                    $next = $last;
+                }
+                $last = $next;
+            }
+        }
+        return $input;
+    }
+
+    /**
+     * Do composition of a sequence of starter and non-starter
+     * @param    array      UCS4 Decomposed sequence
+     * @return   array      Ordered USC4 sequence
+     * @access   private
+     */
+    function _combine($input)
+    {
+        $inp_len = count($input);
+        foreach ($this->NP['replacemaps'] as $np_src => $np_target) {
+            if ($np_target[0] != $input[0]) continue;
+            if (count($np_target) != $inp_len) continue;
+            $hit = false;
+            foreach ($input as $k2 => $v2) {
+                if ($v2 == $np_target[$k2]) {
+                    $hit = true;
+                } else {
+                    $hit = false;
+                    break;
+                }
+            }
+            if ($hit) return $np_src;
+        }
+        return false;
+    }
+
+    /**
+     * This converts an UTF-8 encoded string to its UCS-4 representation
+     * By talking about UCS-4 "strings" we mean arrays of 32bit integers representing
+     * each of the "chars". This is due to PHP not being able to handle strings with
+     * bit depth different from 8. This apllies to the reverse method _ucs4_to_utf8(), too.
+     * The following UTF-8 encodings are supported:
+     * bytes bits  representation
+     * 1        7  0xxxxxxx
+     * 2       11  110xxxxx 10xxxxxx
+     * 3       16  1110xxxx 10xxxxxx 10xxxxxx
+     * 4       21  11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+     * 5       26  111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+     * 6       31  1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+     * Each x represents a bit that can be used to store character data.
+     * The five and six byte sequences are part of Annex D of ISO/IEC 10646-1:2000
+     * @access   private
+     */
+    function _utf8_to_ucs4($input)
+    {
+        $output = array();
+        $out_len = 0;
+        $inp_len = strlen($input);
+        $mode = 'next';
+        $test = 'none';
+        for ($k = 0; $k < $inp_len; ++$k) {
+            $v = ord($input{$k}); // Extract byte from input string
+
+            if ($v < 128) { // We found an ASCII char - put into stirng as is
+                $output[$out_len] = $v;
+                ++$out_len;
+                if ('add' == $mode) {
+                    $this->_error('Conversion from UTF-8 to UCS-4 failed: malformed input at byte '.$k);
+                    return false;
+                }
+                continue;
+            }
+            if ('next' == $mode) { // Try to find the next start byte; determine the width of the Unicode char
+                $start_byte = $v;
+                $mode = 'add';
+                $test = 'range';
+                if ($v >> 5 == 6) { // &110xxxxx 10xxxxx
+                    $next_byte = 0; // Tells, how many times subsequent bitmasks must rotate 6bits to the left
+                    $v = ($v - 192) << 6;
+                } elseif ($v >> 4 == 14) { // &1110xxxx 10xxxxxx 10xxxxxx
+                    $next_byte = 1;
+                    $v = ($v - 224) << 12;
+                } elseif ($v >> 3 == 30) { // &11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+                    $next_byte = 2;
+                    $v = ($v - 240) << 18;
+                } elseif ($v >> 2 == 62) { // &111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+                    $next_byte = 3;
+                    $v = ($v - 248) << 24;
+                } elseif ($v >> 1 == 126) { // &1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
+                    $next_byte = 4;
+                    $v = ($v - 252) << 30;
+                } else {
+                    $this->_error('This might be UTF-8, but I don\'t understand it at byte '.$k);
+                    return false;
+                }
+                if ('add' == $mode) {
+                    $output[$out_len] = (int) $v;
+                    ++$out_len;
+                    continue;
+                }
+            }
+            if ('add' == $mode) {
+                if (!$this->_allow_overlong && $test == 'range') {
+                    $test = 'none';
+                    if (($v < 0xA0 && $start_byte == 0xE0) || ($v < 0x90 && $start_byte == 0xF0) || ($v > 0x8F && $start_byte == 0xF4)) {
+                        $this->_error('Bogus UTF-8 character detected (out of legal range) at byte '.$k);
+                        return false;
+                    }
+                }
+                if ($v >> 6 == 2) { // Bit mask must be 10xxxxxx
+                    $v = ($v - 128) << ($next_byte * 6);
+                    $output[($out_len - 1)] += $v;
+                    --$next_byte;
+                } else {
+                    $this->_error('Conversion from UTF-8 to UCS-4 failed: malformed input at byte '.$k);
+                    return false;
+                }
+                if ($next_byte < 0) {
+                    $mode = 'next';
+                }
+            }
+        } // for
+        return $output;
+    }
+
+    /**
+     * Convert UCS-4 string into UTF-8 string
+     * See _utf8_to_ucs4() for details
+     * @access   private
+     */
+    function _ucs4_to_utf8($input)
+    {
+        $output = '';
+        $k = 0;
+        foreach ($input as $v) {
+            ++$k;
+            // $v = ord($v);
+            if ($v < 128) { // 7bit are transferred literally
+                $output .= chr($v);
+            } elseif ($v < (1 << 11)) { // 2 bytes
+                $output .= chr(192 + ($v >> 6)) . chr(128 + ($v & 63));
+            } elseif ($v < (1 << 16)) { // 3 bytes
+                $output .= chr(224 + ($v >> 12)) . chr(128 + (($v >> 6) & 63)) . chr(128 + ($v & 63));
+            } elseif ($v < (1 << 21)) { // 4 bytes
+                $output .= chr(240 + ($v >> 18)) . chr(128 + (($v >> 12) & 63))
+                         . chr(128 + (($v >> 6) & 63)) . chr(128 + ($v & 63));
+            } elseif ($v < (1 << 26)) { // 5 bytes
+                $output .= chr(248 + ($v >> 24)) . chr(128 + (($v >> 18) & 63))
+                         . chr(128 + (($v >> 12) & 63)) . chr(128 + (($v >> 6) & 63))
+                         . chr(128 + ($v & 63));
+            } elseif ($v < (1 << 31)) { // 6 bytes
+                $output .= chr(252 + ($v >> 30)) . chr(128 + (($v >> 24) & 63))
+                         . chr(128 + (($v >> 18) & 63)) . chr(128 + (($v >> 12) & 63))
+                         . chr(128 + (($v >> 6) & 63)) . chr(128 + ($v & 63));
+            } else {
+                $this->_error('Conversion from UCS-4 to UTF-8 failed: malformed input at byte '.$k);
+                return false;
+            }
+        }
+        return $output;
+    }
+
+    /**
+      * Convert UCS-4 array into UCS-4 string
+      *
+      * @access   private
+      */
+    function _ucs4_to_ucs4_string($input)
+    {
+        $output = '';
+        // Take array values and split output to 4 bytes per value
+        // The bit mask is 255, which reads &11111111
+        foreach ($input as $v) {
+            $output .= chr(($v >> 24) & 255).chr(($v >> 16) & 255).chr(($v >> 8) & 255).chr($v & 255);
+        }
+        return $output;
+    }
+
+    /**
+      * Convert UCS-4 strin into UCS-4 garray
+      *
+      * @access   private
+      */
+    function _ucs4_string_to_ucs4($input)
+    {
+        $output = array();
+        $inp_len = strlen($input);
+        // Input length must be dividable by 4
+        if ($inp_len % 4) {
+            $this->_error('Input UCS4 string is broken');
+            return false;
+        }
+        // Empty input - return empty output
+        if (!$inp_len) return $output;
+        for ($i = 0, $out_len = -1; $i < $inp_len; ++$i) {
+            // Increment output position every 4 input bytes
+            if (!($i % 4)) {
+                $out_len++;
+                $output[$out_len] = 0;
+            }
+            $output[$out_len] += ord($input{$i}) << (8 * (3 - ($i % 4) ) );
+        }
+        return $output;
+    }
+}
+
+/**
+* Adapter class for aligning the API of idna_convert with that of Net_IDNA
+* @author  Matthias Sommerfeld <mso@phlylabs.de>
+*/
+class Net_IDNA_php4 extends idna_convert
+{
+    /**
+     * Sets a new option value. Available options and values:
+     * [encoding - Use either UTF-8, UCS4 as array or UCS4 as string as input ('utf8' for UTF-8,
+     *         'ucs4_string' and 'ucs4_array' respectively for UCS4); The output is always UTF-8]
+     * [overlong - Unicode does not allow unnecessarily long encodings of chars,
+     *             to allow this, set this parameter to true, else to false;
+     *             default is false.]
+     * [strict - true: strict mode, good for registration purposes - Causes errors
+     *           on failures; false: loose mode, ideal for "wildlife" applications
+     *           by silently ignoring errors and returning the original input instead
+     *
+     * @param    mixed     Parameter to set (string: single parameter; array of Parameter => Value pairs)
+     * @param    string    Value to use (if parameter 1 is a string)
+     * @return   boolean   true on success, false otherwise
+     * @access   public
+     */
+    function setParams($option, $param = false)
+    {
+        return $this->IC->set_parameters($option, $param);
+    }
+}
+
+?>

license.txt

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+
+                            Preamble
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+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<http://www.gnu.org/licenses/>.

makefulltextfeed.php

@@ -0,0 +1,577 @@
+<?php
+// Create Full-Text Feeds
+// Author: Keyvan Minoukadeh
+// Copyright (c) 2010 Keyvan Minoukadeh
+// License: AGPLv3
+// Version: 2.2
+// Date: 2010-10-30
+
+/*
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// Usage
+// -----
+// Request this file passing it your feed in the querystring: makefulltextfeed.php?url=mysite.org
+// The following options can be passed in the querystring:
+// * URL: url=[feed or website url] (required, should be URL-encoded - in php: urlencode($url))
+// * URL points to HTML (not feed): html=true (optional, by default it's automatically detected)
+// * API key: key=[api key] (optional, refer to config.php)
+// * Max entries to process: max=[max number of items] (optional)
+
+error_reporting(E_ALL ^ E_NOTICE);
+ini_set("display_errors", 1);
+@set_time_limit(120);
+
+// set include path
+set_include_path(realpath(dirname(__FILE__).'/libraries').PATH_SEPARATOR.get_include_path());
+
+// Autoloading of classes allows us to include files only when they're
+// needed. If we've got a cached copy, for example, only Zend_Cache is loaded.
+function __autoload($class_name) {
+	static $mapping = array(
+		// Include SimplePie for RSS/Atom parsing
+		'SimplePie' => 'simplepie/simplepie.class.php',
+		'SimplePie_Misc' => 'simplepie/simplepie.class.php',		
+		// Include FeedCreator for RSS/Atom creation
+		'FeedWriter' => 'feedwriter/FeedWriter.php',
+		'FeedItem' => 'feedwriter/FeedItem.php',
+		// Include Readability for identifying and extracting content from URLs
+		'Readability' => 'readability/Readability.php',
+		// Include Humble HTTP Agent to allow parallel requests and response caching
+		'HumbleHttpAgent' => 'humble-http-agent/HumbleHttpAgent.php',
+		// Include IRI class for resolving relative URLs
+		'IRI' => 'iri/iri.php',
+		// Include Zend Cache to improve performance (cache results)
+		'Zend_Cache' => 'Zend/Cache.php'
+	);
+	if (isset($mapping[$class_name])) {
+		//echo "Loading $class_name\n<br />";
+		require_once $mapping[$class_name];
+		return true;
+	} else {
+		return false;
+	}
+}
+
+////////////////////////////////
+// Load config file if it exists
+////////////////////////////////
+// the config values below should be set in config.php (rename config-sample.php if config.php doesn't exist).
+// the values below will only be used if config.php doesn't exist.
+$options->enabled = true;
+$options->restrict = false;
+$options->default_entries = 5;
+$options->max_entries = 10;
+$options->rewrite_relative_urls = true;
+$options->caching = false;
+$options->cache_dir = dirname(__FILE__).'/cache';
+$options->message_to_prepend = '';
+$options->message_to_append = '';
+$options->blocked_urls = array();
+$options->alternative_url = '';
+$options->error_message = '[unable to retrieve full-text content]';
+$options->api_keys = array();
+$options->default_entries_with_key = 5;
+$options->max_entries_with_key = 10;
+$options->message_to_prepend_with_key = '';
+$options->message_to_append_with_key = '';
+$options->error_message_with_key = '[unable to retrieve full-text content]';
+$options->cache_directory_level = 0;
+if (file_exists(dirname(__FILE__).'/config.php')) {
+	require_once(dirname(__FILE__).'/config.php');
+}
+
+//////////////////////////////////////////////
+// Convert $html to UTF8
+// (uses HTTP headers and HTML to find encoding)
+// adapted from http://stackoverflow.com/questions/910793/php-detect-encoding-and-make-everything-utf-8
+//////////////////////////////////////////////
+function convert_to_utf8($html, $header=null)
+{
+	$accept = array(
+		'type' => array('application/rss+xml', 'application/xml', 'application/rdf+xml', 'text/xml', 'text/html'),
+		'charset' => array_diff(mb_list_encodings(), array('pass', 'auto', 'wchar', 'byte2be', 'byte2le', 'byte4be', 'byte4le', 'BASE64', 'UUENCODE', 'HTML-ENTITIES', 'Quoted-Printable', '7bit', '8bit'))
+	);
+	$encoding = null;
+	if ($html || $header) {
+		if (is_array($header)) $header = implode("\n", $header);
+		if (!$header || !preg_match_all('/^Content-Type:\s+([^;]+)(?:;\s*charset=["\']?([^;"\'\n]*))?/im', $header, $match, PREG_SET_ORDER)) {
+			// error parsing the response
+		} else {
+			$match = end($match); // get last matched element (in case of redirects)
+			if (!in_array(strtolower($match[1]), $accept['type'])) {
+				// type not accepted
+				// TODO: avoid conversion
+			}
+			if (isset($match[2])) $encoding = trim($match[2], '"\'');
+		}
+		if (!$encoding) {
+			if (preg_match('/^<\?xml\s+version=(?:"[^"]*"|\'[^\']*\')\s+encoding=("[^"]*"|\'[^\']*\')/s', $html, $match)) {
+				$encoding = trim($match[1], '"\'');
+			} elseif(preg_match('/<meta\s+http-equiv=["\']Content-Type["\'] content=["\'][^;]+;\s*charset=["\']?([^;"\'>]+)/i', $html, $match)) {
+				if (isset($match[1])) $encoding = trim($match[1]);
+			}
+		}
+		if (!$encoding) {
+			$encoding = 'utf-8';
+		} else {
+			if (!in_array($encoding, array_map('strtolower', $accept['charset']))) {
+				// encoding not accepted
+				// TODO: avoid conversion
+			}
+			if (strtolower($encoding) != 'utf-8') {
+				if (strtolower($encoding) == 'iso-8859-1') {
+					// replace MS Word smart qutoes
+					$trans = array();
+					$trans[chr(130)] = '&sbquo;';    // Single Low-9 Quotation Mark
+					$trans[chr(131)] = '&fnof;';    // Latin Small Letter F With Hook
+					$trans[chr(132)] = '&bdquo;';    // Double Low-9 Quotation Mark
+					$trans[chr(133)] = '&hellip;';    // Horizontal Ellipsis
+					$trans[chr(134)] = '&dagger;';    // Dagger
+					$trans[chr(135)] = '&Dagger;';    // Double Dagger
+					$trans[chr(136)] = '&circ;';    // Modifier Letter Circumflex Accent
+					$trans[chr(137)] = '&permil;';    // Per Mille Sign
+					$trans[chr(138)] = '&Scaron;';    // Latin Capital Letter S With Caron
+					$trans[chr(139)] = '&lsaquo;';    // Single Left-Pointing Angle Quotation Mark
+					$trans[chr(140)] = '&OElig;';    // Latin Capital Ligature OE
+					$trans[chr(145)] = '&lsquo;';    // Left Single Quotation Mark
+					$trans[chr(146)] = '&rsquo;';    // Right Single Quotation Mark
+					$trans[chr(147)] = '&ldquo;';    // Left Double Quotation Mark
+					$trans[chr(148)] = '&rdquo;';    // Right Double Quotation Mark
+					$trans[chr(149)] = '&bull;';    // Bullet
+					$trans[chr(150)] = '&ndash;';    // En Dash
+					$trans[chr(151)] = '&mdash;';    // Em Dash
+					$trans[chr(152)] = '&tilde;';    // Small Tilde
+					$trans[chr(153)] = '&trade;';    // Trade Mark Sign
+					$trans[chr(154)] = '&scaron;';    // Latin Small Letter S With Caron
+					$trans[chr(155)] = '&rsaquo;';    // Single Right-Pointing Angle Quotation Mark
+					$trans[chr(156)] = '&oelig;';    // Latin Small Ligature OE
+					$trans[chr(159)] = '&Yuml;';    // Latin Capital Letter Y With Diaeresis
+					$html = strtr($html, $trans);
+				}
+				$html = SimplePie_Misc::change_encoding($html, $encoding, 'utf-8');
+
+				/*
+				if (function_exists('iconv')) {
+					// iconv appears to handle certain character encodings better than mb_convert_encoding
+					$html = iconv($encoding, 'utf-8', $html);
+				} else {
+					$html = mb_convert_encoding($html, 'utf-8', $encoding);
+				}
+				*/
+			}
+		}
+	}
+	return $html;
+}
+
+function makeAbsolute($base, $elem) {
+	$base = new IRI($base);
+	foreach(array('a'=>'href', 'img'=>'src') as $tag => $attr) {
+		$elems = $elem->getElementsByTagName($tag);
+		for ($i = $elems->length-1; $i >= 0; $i--) {
+			$e = $elems->item($i);
+			//$e->parentNode->replaceChild($articleContent->ownerDocument->createTextNode($e->textContent), $e);
+			if ($e->hasAttribute($attr)) {
+				// Trim leading and trailing white space. I don't really like this but 
+				// unfortunately it does appear on some sites. e.g.  <img src=" /path/to/image.jpg" />
+				$url = trim(str_replace('%20', ' ', $e->getAttribute($attr)));
+				$url = str_replace(' ', '%20', $url);
+				if (!preg_match('!https?://!i', $url)) {
+					$absolute = IRI::absolutize($base, $url);
+					if ($absolute) {
+						$e->setAttribute($attr, $absolute);
+					}
+				}
+			}
+		}
+	}
+}
+
+////////////////////////////////
+// Check if service is enabled
+////////////////////////////////
+if (!$options->enabled) { 
+	die('The full-text RSS service is currently disabled'); 
+}
+
+////////////////////////////////
+// Check for feed URL
+////////////////////////////////
+if (!isset($_GET['url'])) { 
+	die('No URL supplied'); 
+}
+$url = $_GET['url'];
+if (!preg_match('!^https?://.+!i', $url)) {
+	$url = 'http://'.$url;
+}
+$valid_url = filter_var($url, FILTER_VALIDATE_URL);
+if ($valid_url !== false && $valid_url !== null && preg_match('!^https?://!', $valid_url)) {
+	$url = filter_var($url, FILTER_SANITIZE_URL);
+} else {
+	die('Invalid URL supplied');
+}
+
+////////////////////////////////
+// Redirect to alternative URL?
+////////////////////////////////
+if ($options->alternative_url != '' && !isset($_GET['redir']) && mt_rand(0, 100) > 50) {
+	$redirect = $options->alternative_url.'?redir=true&url='.urlencode($url);
+	if (isset($_GET['html'])) $redirect .= '&html='.urlencode($_GET['html']);	
+	if (isset($_GET['key'])) $redirect .= '&key='.urlencode($_GET['key']);
+	if (isset($_GET['max'])) $redirect .= '&max='.(int)$_GET['max'];
+	if (isset($_GET['links'])) $redirect .= '&links='.$_GET['links'];
+	header("Location: $redirect");
+	exit;
+}
+
+///////////////////////////////////////////////
+// Check if the request is explicitly for an HTML page
+///////////////////////////////////////////////
+$html_only = (isset($_GET['html']) && $_GET['html'] == 'true');
+
+///////////////////////////////////////////////
+// Check if valid key supplied
+///////////////////////////////////////////////
+$valid_key = (isset($_GET['key']) && in_array($_GET['key'], $options->api_keys));
+
+///////////////////////////////////////////////
+// Check URL against list of blacklisted URLs
+// TODO: set up better system for this
+///////////////////////////////////////////////
+foreach ($options->blocked_urls as $blockurl) {
+	if (strstr($url, $blockurl) !== false) {
+		die('URL blocked');
+	}
+}
+
+///////////////////////////////////////////////
+// Max entries
+// see config.php to find these values
+///////////////////////////////////////////////
+if (isset($_GET['max'])) {
+	$max = (int)$_GET['max'];
+	if ($valid_key) {
+		$max = min($max, $options->max_entries_with_key);
+	} else {
+		$max = min($max, $options->max_entries);
+	}
+} else {
+	if ($valid_key) {
+		$max = $options->default_entries_with_key;
+	} else {
+		$max = $options->default_entries;
+	}
+}
+
+///////////////////////////////////////////////
+// Link handling
+///////////////////////////////////////////////
+if (($valid_key || !$options->restrict) && isset($_GET['links']) && in_array($_GET['links'], array('preserve', 'footnotes', 'remove'))) {
+	$links = $_GET['links'];
+} else {
+	$links = 'preserve';
+}
+
+/////////////////////////////////////
+// Check for valid format
+// (stick to RSS for the time being)
+/////////////////////////////////////
+$format = 'rss';
+
+//////////////////////////////////
+// Check for cached copy
+//////////////////////////////////
+if ($options->caching) {
+	$frontendOptions = array(
+	   'lifetime' => ($valid_key || !$options->restrict) ? 10*60 : 20*60, // cache lifetime of 10 or 20 minutes
+	   'automatic_serialization' => false,
+	   'write_control' => false,
+	   'automatic_cleaning_factor' => 100,
+	   'ignore_user_abort' => false
+	);
+	$backendOptions = array(
+		'cache_dir' => ($valid_key) ? $options->cache_dir.'/rss-with-key/' : $options->cache_dir.'/rss/', // directory where to put the cache files
+		'file_locking' => false,
+		'read_control' => true,
+		'read_control_type' => 'strlen',
+		'hashed_directory_level' => $options->cache_directory_level,
+		'hashed_directory_umask' => 0777,
+		'cache_file_umask' => 0664,
+		'file_name_prefix' => 'ff'
+	);
+
+	// getting a Zend_Cache_Core object
+	$cache = Zend_Cache::factory('Core', 'File', $frontendOptions, $backendOptions);
+	$cache_id = md5($max.$url.$valid_key.$links);
+
+	if ($data = $cache->load($cache_id)) {
+		header("Content-type: text/xml; charset=UTF-8");
+		if (headers_sent()) die('Some data has already been output, can\'t send RSS file');
+		echo $data;
+		exit;
+	}
+}
+
+//////////////////////////////////
+// Set Expires header
+//////////////////////////////////
+if ($valid_key) {
+	header('Expires: ' . gmdate('D, d M Y H:i:s', time()+(60*10)) . ' GMT');
+} else {
+	header('Expires: ' . gmdate('D, d M Y H:i:s', time()+(60*20)) . ' GMT');
+}
+
+//////////////////////////////////
+// Set up HTTP agent
+//////////////////////////////////
+$http = new HumbleHttpAgent();
+
+if ($options->caching) {
+	$frontendOptions = array(
+	   'lifetime' => 30*60, // cache lifetime of 30 minutes
+	   'automatic_serialization' => true,
+	   'write_control' => false,
+	   'automatic_cleaning_factor' => 100,
+	   'ignore_user_abort' => false
+	); 
+	$backendOptions = array(
+		'cache_dir' => $options->cache_dir.'/http-responses/', // directory where to put the cache files
+		'file_locking' => false,
+		'read_control' => true,
+		'read_control_type' => 'strlen',
+		'hashed_directory_level' => $options->cache_directory_level,
+		'hashed_directory_umask' => 0777,
+		'cache_file_umask' => 0664,
+		'file_name_prefix' => 'ff'
+	);
+	$httpCache = Zend_Cache::factory('Core', 'File', $frontendOptions, $backendOptions);
+	$http->useCache($httpCache);
+}
+
+////////////////////////////////
+// Tidy config
+////////////////////////////////
+if (function_exists('tidy_parse_string')) {
+	$tidy_config = array(
+		 'clean' => true,
+		 'output-xhtml' => true,
+		 'logical-emphasis' => true,
+		 'show-body-only' => false,
+		 'wrap' => 0,
+		 'drop-empty-paras' => true,
+		 'drop-proprietary-attributes' => false,
+		 'enclose-text' => true,
+		 'enclose-block-text' => true,
+		 'merge-divs' => true,
+		 'merge-spans' => true,
+		 'char-encoding' => 'utf8',
+		 'hide-comments' => true
+	);			
+}
+
+////////////////////////////////
+// Get RSS/Atom feed
+////////////////////////////////
+if (!$html_only) {
+	$feed = new SimplePie();
+	$feed->set_feed_url($url);
+	$feed->set_autodiscovery_level(SIMPLEPIE_LOCATOR_NONE);
+	$feed->set_timeout(20);
+	$feed->enable_cache(false);
+	$feed->set_stupidly_fast(true);
+	$feed->enable_order_by_date(false); // we don't want to do anything to the feed
+	$feed->set_url_replacements(array());
+	// initialise the feed
+	// the @ suppresses notices which on some servers causes a 500 internal server error
+	$result = @$feed->init();
+	//$feed->handle_content_type();
+	//$feed->get_title();
+	if ($result && (!is_array($feed->data) || count($feed->data) == 0)) {
+		die('Sorry, no feed items found');
+	}
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Extract content from HTML (if URL is not feed or explicit HTML request has been made)
+////////////////////////////////////////////////////////////////////////////////
+if ($html_only || !$result) {
+	unset($feed, $result);
+	if ($response = $http->get($url)) {
+		$effective_url = $response['effective_url'];
+		$html = $response['body'];
+		$html = convert_to_utf8($html, $response['headers']);	
+	} else {
+		die('Error retrieving '.$url);
+	}
+	// Run through Tidy (if it exists).
+	// This fixes problems with some sites which would otherwise
+	// trouble DOMDocument's HTML parsing.
+	if (function_exists('tidy_parse_string')) {
+		$tidy = tidy_parse_string($html, $tidy_config, 'UTF8');
+		if (tidy_clean_repair($tidy)) {
+			$html = $tidy->value;
+		}
+	}
+	$readability = new Readability($html, $effective_url);
+	if ($links == 'footnotes') $readability->convertLinksToFootnotes = true;
+	$readability->init();
+	$readability->clean($readability->getContent(), 'select');
+	if ($options->rewrite_relative_urls) makeAbsolute($effective_url, $readability->getContent());
+	$title = $readability->getTitle()->textContent;
+	$content = $readability->getContent()->innerHTML;
+	if ($links == 'remove') {
+		$content = preg_replace('!</?a[^>]*>!', '', $content);
+	}
+	if (!$valid_key) {
+		$content = $options->message_to_prepend.$content;
+		$content .= $options->message_to_append;
+	} else {
+		$content = $options->message_to_prepend_with_key.$content;	
+		$content .= $options->message_to_append_with_key;
+	}
+	unset($readability, $html);
+	$output = new FeedWriter(); //ATOM an option
+	$output->setTitle($title);
+	$output->setDescription("Content extracted from $url");
+	if ($format == 'atom') {
+		$output->setChannelElement('updated', date(DATE_ATOM));
+		$output->setChannelElement('author', array('name'=>'Five Filters', 'uri'=>'http://fivefilters.org'));
+	}
+	$output->setLink($url);
+	$newitem = $output->createNewItem();
+	$newitem->setTitle($title);
+	$newitem->setLink($url);
+	if ($format == 'atom') {
+		$newitem->setDate(time());
+		$newitem->addElement('content', $content);
+	} else {
+		$newitem->setDescription($content);
+	}
+	$output->addItem($newitem);
+	$output->genarateFeed(); 
+	exit;
+}
+
+////////////////////////////////////////////
+// Create full-text feed
+////////////////////////////////////////////
+$output = new FeedWriter();
+$output->setTitle($feed->get_title());
+$output->setDescription($feed->get_description());
+$output->setLink($feed->get_link());
+if ($img_url = $feed->get_image_url()) {
+	$output->setImage($feed->get_title(), $feed->get_link(), $img_url);
+}
+if ($format == 'atom') {
+	$output->setChannelElement('updated', date(DATE_ATOM));
+	$output->setChannelElement('author', array('name'=>'Five Filters', 'uri'=>'http://fivefilters.org'));
+}
+
+////////////////////////////////////////////
+// Loop through feed items
+////////////////////////////////////////////
+$items = $feed->get_items(0, $max);	
+// Request all feed items in parallel (if supported)
+$urls_sanitized = array();
+$urls = array();
+foreach ($items as $key => $item) {
+	$permalink = htmlspecialchars_decode($item->get_permalink());
+	$permalink = $http->validateUrl($permalink);
+	if ($permalink) {
+		$urls_sanitized[] = $permalink;
+	}
+	$urls[$key] = $permalink;
+}
+$http->fetchAll($urls_sanitized);
+$http->cacheAll();
+
+foreach ($items as $key => $item) {
+	$permalink = $urls[$key];
+	$newitem = $output->createNewItem();
+	$newitem->setTitle(htmlspecialchars_decode($item->get_title()));
+	if ($permalink !== false) {
+		$newitem->setLink($permalink);
+	} else {
+		$newitem->setLink($item->get_permalink());
+	}
+	if ($permalink && $response = $http->get($permalink)) {
+		$effective_url = $response['effective_url'];
+		$html = $response['body'];
+		$html = convert_to_utf8($html, $response['headers']);
+		// Run through Tidy (if it exists).
+		// This fixes problems with some sites which would otherwise
+		// trouble DOMDocument's HTML parsing. (Although sometimes it fails
+		// to return anything, so it's a bit of tradeoff.)
+		if (function_exists('tidy_parse_string')) {
+			$tidy = tidy_parse_string($html, $tidy_config, 'UTF8');
+			$tidy->cleanRepair();
+			$html = $tidy->value;
+		}		
+		$readability = new Readability($html, $effective_url);
+		if ($links == 'footnotes') $readability->convertLinksToFootnotes = true;
+		$readability->init();
+		$readability->clean($readability->getContent(), 'select');
+		if ($options->rewrite_relative_urls) makeAbsolute($effective_url, $readability->getContent());
+		$html = $readability->getContent()->innerHTML;	
+		if ($links == 'remove') {
+			$html = preg_replace('!</?a[^>]*>!', '', $html);
+		}
+		if (!$valid_key) {
+			$html = $options->message_to_prepend.$html;
+			$html .= $options->message_to_append;
+		} else {
+			$html = $options->message_to_prepend_with_key.$html;	
+			$html .= $options->message_to_append_with_key;
+		}
+	} else {
+		if (!$valid_key) {
+			$html = $options->error_message;
+		} else {
+			$html = $options->error_message_with_key;
+		}
+		$html .= $item->get_description();
+	}
+	if ($format == 'atom') {
+		$newitem->addElement('content', $html);
+		$newitem->setDate((int)$item->get_date('U'));
+		if ($author = $item->get_author()) {
+			$newitem->addElement('author', array('name'=>$author->get_name()));
+		}
+	} else {
+		$newitem->addElement('guid', $item->get_permalink(), array('isPermaLink'=>'true'));
+		$newitem->setDescription($html);
+		if ((int)$item->get_date('U') > 0) {
+			$newitem->setDate((int)$item->get_date('U'));
+		}
+		if ($author = $item->get_author()) {
+			$newitem->addElement('dc:creator', $author->get_name());
+		}
+	}
+	$output->addItem($newitem);
+	unset($html);
+}
+// output feed
+if ($options->caching) {
+	ob_start();
+	$output->genarateFeed();
+	$output = ob_get_contents();
+	ob_end_clean();
+	$cache->save($output, $cache_id);
+	echo $output;
+} else {
+	$output->genarateFeed();
+}
+?>