998 lines
22 KiB
PHP
998 lines
22 KiB
PHP
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<?php
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/**
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* SimplePie
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*
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* A PHP-Based RSS and Atom Feed Framework.
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* Takes the hard work out of managing a complete RSS/Atom solution.
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*
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* Copyright (c) 2004-2009, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* * Neither the name of the SimplePie Team nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
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* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* @package SimplePie
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* @version 1.3-dev
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* @copyright 2004-2010 Ryan Parman, Geoffrey Sneddon, Ryan McCue
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* @author Ryan Parman
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* @author Geoffrey Sneddon
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* @author Ryan McCue
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* @link http://simplepie.org/ SimplePie
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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* @todo phpDoc comments
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*/
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/**
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* IRI parser/serialiser
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*
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* @package SimplePie
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*/
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class SimplePie_IRI
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{
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/**
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* Scheme
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*
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* @access private
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* @var string
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*/
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var $scheme;
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/**
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* User Information
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*
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* @access private
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* @var string
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*/
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var $userinfo;
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/**
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* Host
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*
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* @access private
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* @var string
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*/
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var $host;
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/**
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* Port
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*
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* @access private
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* @var string
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*/
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var $port;
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/**
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* Path
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*
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* @access private
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* @var string
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*/
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var $path;
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/**
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* Query
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*
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* @access private
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* @var string
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*/
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var $query;
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/**
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* Fragment
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*
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* @access private
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* @var string
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*/
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var $fragment;
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/**
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* Whether the object represents a valid IRI
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*
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* @access private
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* @var array
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*/
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var $valid = array();
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/**
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* Return the entire IRI when you try and read the object as a string
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*
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* @access public
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* @return string
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*/
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public function __toString()
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{
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return $this->get_iri();
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}
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/**
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* Create a new IRI object, from a specified string
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*
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* @access public
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* @param string $iri
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* @return SimplePie_IRI
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*/
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public function __construct($iri)
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{
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$iri = (string) $iri;
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if ($iri !== '')
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{
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$parsed = $this->parse_iri($iri);
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$this->set_scheme($parsed['scheme']);
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$this->set_authority($parsed['authority']);
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$this->set_path($parsed['path']);
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$this->set_query($parsed['query']);
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$this->set_fragment($parsed['fragment']);
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}
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}
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/**
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* Create a new IRI object by resolving a relative IRI
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*
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* @static
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* @access public
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* @param SimplePie_IRI $base Base IRI
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* @param string $relative Relative IRI
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* @return SimplePie_IRI
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*/
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public static function absolutize($base, $relative)
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{
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$relative = (string) $relative;
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if ($relative !== '')
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{
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$relative = new SimplePie_IRI($relative);
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if ($relative->get_scheme() !== null)
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{
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$target = $relative;
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}
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elseif ($base->get_iri() !== null)
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{
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if ($relative->get_authority() !== null)
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{
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$target = $relative;
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$target->set_scheme($base->get_scheme());
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}
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else
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{
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$target = new SimplePie_IRI('');
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$target->set_scheme($base->get_scheme());
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$target->set_userinfo($base->get_userinfo());
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$target->set_host($base->get_host());
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$target->set_port($base->get_port());
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if ($relative->get_path() !== null)
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{
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if (strpos($relative->get_path(), '/') === 0)
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{
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$target->set_path($relative->get_path());
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}
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elseif (($base->get_userinfo() !== null || $base->get_host() !== null || $base->get_port() !== null) && $base->get_path() === null)
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{
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$target->set_path('/' . $relative->get_path());
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}
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elseif (($last_segment = strrpos($base->get_path(), '/')) !== false)
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{
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$target->set_path(substr($base->get_path(), 0, $last_segment + 1) . $relative->get_path());
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}
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else
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{
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$target->set_path($relative->get_path());
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}
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$target->set_query($relative->get_query());
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}
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else
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{
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$target->set_path($base->get_path());
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if ($relative->get_query() !== null)
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{
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$target->set_query($relative->get_query());
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}
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elseif ($base->get_query() !== null)
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{
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$target->set_query($base->get_query());
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}
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}
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}
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$target->set_fragment($relative->get_fragment());
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}
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else
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{
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// No base URL, just return the relative URL
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$target = $relative;
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}
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}
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else
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{
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$target = $base;
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}
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return $target;
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}
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/**
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* Parse an IRI into scheme/authority/path/query/fragment segments
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*
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* @access private
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* @param string $iri
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* @return array
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*/
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public function parse_iri($iri)
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{
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preg_match('/^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?$/', $iri, $match);
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for ($i = count($match); $i <= 9; $i++)
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{
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$match[$i] = '';
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}
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return array('scheme' => $match[2], 'authority' => $match[4], 'path' => $match[5], 'query' => $match[7], 'fragment' => $match[9]);
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}
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/**
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* Remove dot segments from a path
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*
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* @access private
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* @param string $input
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* @return string
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*/
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public function remove_dot_segments($input)
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{
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$output = '';
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while (strpos($input, './') !== false || strpos($input, '/.') !== false || $input === '.' || $input === '..')
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{
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// A: If the input buffer begins with a prefix of "../" or "./", then remove that prefix from the input buffer; otherwise,
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if (strpos($input, '../') === 0)
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{
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$input = substr($input, 3);
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}
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elseif (strpos($input, './') === 0)
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{
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$input = substr($input, 2);
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}
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// B: if the input buffer begins with a prefix of "/./" or "/.", where "." is a complete path segment, then replace that prefix with "/" in the input buffer; otherwise,
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elseif (strpos($input, '/./') === 0)
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{
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$input = substr_replace($input, '/', 0, 3);
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}
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elseif ($input === '/.')
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{
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$input = '/';
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}
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// C: if the input buffer begins with a prefix of "/../" or "/..", where ".." is a complete path segment, then replace that prefix with "/" in the input buffer and remove the last segment and its preceding "/" (if any) from the output buffer; otherwise,
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elseif (strpos($input, '/../') === 0)
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{
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$input = substr_replace($input, '/', 0, 4);
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$output = substr_replace($output, '', strrpos($output, '/'));
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}
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elseif ($input === '/..')
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{
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$input = '/';
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$output = substr_replace($output, '', strrpos($output, '/'));
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}
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// D: if the input buffer consists only of "." or "..", then remove that from the input buffer; otherwise,
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elseif ($input === '.' || $input === '..')
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{
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$input = '';
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}
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// E: move the first path segment in the input buffer to the end of the output buffer, including the initial "/" character (if any) and any subsequent characters up to, but not including, the next "/" character or the end of the input buffer
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elseif (($pos = strpos($input, '/', 1)) !== false)
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{
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$output .= substr($input, 0, $pos);
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$input = substr_replace($input, '', 0, $pos);
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}
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else
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{
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$output .= $input;
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$input = '';
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}
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}
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return $output . $input;
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}
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/**
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* Replace invalid character with percent encoding
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*
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* @param string $string Input string
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* @param string $valid_chars Valid characters not in iunreserved or iprivate (this is ASCII-only)
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* @param int $case Normalise case
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* @param bool $iprivate Allow iprivate
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* @return string
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*/
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protected function replace_invalid_with_pct_encoding($string, $valid_chars, $case = SIMPLEPIE_SAME_CASE, $iprivate = false)
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{
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// Normalize as many pct-encoded sections as possible
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$string = preg_replace_callback('/(?:%[A-Fa-f0-9]{2})+/', array(&$this, 'remove_iunreserved_percent_encoded'), $string);
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// Replace invalid percent characters
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$string = preg_replace('/%(?![A-Fa-f0-9]{2})/', '%25', $string);
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// Add unreserved and % to $valid_chars (the latter is safe because all
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// pct-encoded sections are now valid).
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$valid_chars .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~%';
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// Now replace any bytes that aren't allowed with their pct-encoded versions
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$position = 0;
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$strlen = strlen($string);
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while (($position += strspn($string, $valid_chars, $position)) < $strlen)
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{
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$value = ord($string[$position]);
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// Start position
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$start = $position;
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// By default we are valid
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$valid = true;
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// No one byte sequences are valid due to the while.
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// Two byte sequence:
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if (($value & 0xE0) === 0xC0)
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{
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$character = ($value & 0x1F) << 6;
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$length = 2;
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$remaining = 1;
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}
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// Three byte sequence:
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elseif (($value & 0xF0) === 0xE0)
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{
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$character = ($value & 0x0F) << 12;
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$length = 3;
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$remaining = 2;
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}
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// Four byte sequence:
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elseif (($value & 0xF8) === 0xF0)
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{
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$character = ($value & 0x07) << 18;
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$length = 4;
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$remaining = 3;
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}
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// Invalid byte:
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else
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{
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$valid = false;
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$length = 1;
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$remaining = 0;
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}
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if ($remaining)
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{
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if ($position + $length <= $strlen)
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{
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for ($position++; $remaining; $position++)
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{
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$value = ord($string[$position]);
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// Check that the byte is valid, then add it to the character:
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if (($value & 0xC0) === 0x80)
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{
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$character |= ($value & 0x3F) << (--$remaining * 6);
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}
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// If it is invalid, count the sequence as invalid and reprocess the current byte:
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else
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{
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$valid = false;
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$position--;
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break;
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}
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}
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}
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else
|
||
|
|
{
|
||
|
|
$position = $strlen - 1;
|
||
|
|
$valid = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Percent encode anything invalid or not in ucschar
|
||
|
|
if (
|
||
|
|
// Invalid sequences
|
||
|
|
!$valid
|
||
|
|
// Non-shortest form sequences are invalid
|
||
|
|
|| $length > 1 && $character <= 0x7F
|
||
|
|
|| $length > 2 && $character <= 0x7FF
|
||
|
|
|| $length > 3 && $character <= 0xFFFF
|
||
|
|
// Outside of range of ucschar codepoints
|
||
|
|
// Noncharacters
|
||
|
|
|| ($character & 0xFFFE) === 0xFFFE
|
||
|
|
|| $character >= 0xFDD0 && $character <= 0xFDEF
|
||
|
|
|| (
|
||
|
|
// Everything else not in ucschar
|
||
|
|
$character > 0xD7FF && $character < 0xF900
|
||
|
|
|| $character < 0xA0
|
||
|
|
|| $character > 0xEFFFD
|
||
|
|
)
|
||
|
|
&& (
|
||
|
|
// Everything not in iprivate, if it applies
|
||
|
|
!$iprivate
|
||
|
|
|| $character < 0xE000
|
||
|
|
|| $character > 0x10FFFD
|
||
|
|
)
|
||
|
|
)
|
||
|
|
{
|
||
|
|
// If we were a character, pretend we weren't, but rather an error.
|
||
|
|
if ($valid)
|
||
|
|
$position--;
|
||
|
|
|
||
|
|
for ($j = $start; $j <= $position; $j++)
|
||
|
|
{
|
||
|
|
$string = substr_replace($string, sprintf('%%%02X', ord($string[$j])), $j, 1);
|
||
|
|
$j += 2;
|
||
|
|
$position += 2;
|
||
|
|
$strlen += 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Normalise case
|
||
|
|
if ($case & SIMPLEPIE_LOWERCASE)
|
||
|
|
{
|
||
|
|
$string = strtolower($string);
|
||
|
|
}
|
||
|
|
elseif ($case & SIMPLEPIE_UPPERCASE)
|
||
|
|
{
|
||
|
|
$string = strtoupper($string);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $string;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Callback function for preg_replace_callback.
|
||
|
|
*
|
||
|
|
* Removes sequences of percent encoded bytes that represent UTF-8
|
||
|
|
* encoded characters in iunreserved
|
||
|
|
*
|
||
|
|
* @param array $match PCRE match
|
||
|
|
* @return string Replacement
|
||
|
|
*/
|
||
|
|
protected function remove_iunreserved_percent_encoded($match)
|
||
|
|
{
|
||
|
|
// As we just have valid percent encoded sequences we can just explode
|
||
|
|
// and ignore the first member of the returned array (an empty string).
|
||
|
|
$bytes = explode('%', $match[0]);
|
||
|
|
|
||
|
|
// Initialize the new string (this is what will be returned) and that
|
||
|
|
// there are no bytes remaining in the current sequence (unsurprising
|
||
|
|
// at the first byte!).
|
||
|
|
$string = '';
|
||
|
|
$remaining = 0;
|
||
|
|
|
||
|
|
// Loop over each and every byte, and set $value to its value
|
||
|
|
for ($i = 1, $len = count($bytes); $i < $len; $i++)
|
||
|
|
{
|
||
|
|
$value = hexdec($bytes[$i]);
|
||
|
|
|
||
|
|
// If we're the first byte of sequence:
|
||
|
|
if (!$remaining)
|
||
|
|
{
|
||
|
|
// Start position
|
||
|
|
$start = $i;
|
||
|
|
|
||
|
|
// By default we are valid
|
||
|
|
$valid = true;
|
||
|
|
|
||
|
|
// One byte sequence:
|
||
|
|
if ($value <= 0x7F)
|
||
|
|
{
|
||
|
|
$character = $value;
|
||
|
|
$length = 1;
|
||
|
|
}
|
||
|
|
// Two byte sequence:
|
||
|
|
elseif (($value & 0xE0) === 0xC0)
|
||
|
|
{
|
||
|
|
$character = ($value & 0x1F) << 6;
|
||
|
|
$length = 2;
|
||
|
|
$remaining = 1;
|
||
|
|
}
|
||
|
|
// Three byte sequence:
|
||
|
|
elseif (($value & 0xF0) === 0xE0)
|
||
|
|
{
|
||
|
|
$character = ($value & 0x0F) << 12;
|
||
|
|
$length = 3;
|
||
|
|
$remaining = 2;
|
||
|
|
}
|
||
|
|
// Four byte sequence:
|
||
|
|
elseif (($value & 0xF8) === 0xF0)
|
||
|
|
{
|
||
|
|
$character = ($value & 0x07) << 18;
|
||
|
|
$length = 4;
|
||
|
|
$remaining = 3;
|
||
|
|
}
|
||
|
|
// Invalid byte:
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$valid = false;
|
||
|
|
$remaining = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Continuation byte:
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Check that the byte is valid, then add it to the character:
|
||
|
|
if (($value & 0xC0) === 0x80)
|
||
|
|
{
|
||
|
|
$remaining--;
|
||
|
|
$character |= ($value & 0x3F) << ($remaining * 6);
|
||
|
|
}
|
||
|
|
// If it is invalid, count the sequence as invalid and reprocess the current byte as the start of a sequence:
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$valid = false;
|
||
|
|
$remaining = 0;
|
||
|
|
$i--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// If we've reached the end of the current byte sequence, append it to Unicode::$data
|
||
|
|
if (!$remaining)
|
||
|
|
{
|
||
|
|
// Percent encode anything invalid or not in iunreserved
|
||
|
|
if (
|
||
|
|
// Invalid sequences
|
||
|
|
!$valid
|
||
|
|
// Non-shortest form sequences are invalid
|
||
|
|
|| $length > 1 && $character <= 0x7F
|
||
|
|
|| $length > 2 && $character <= 0x7FF
|
||
|
|
|| $length > 3 && $character <= 0xFFFF
|
||
|
|
// Outside of range of iunreserved codepoints
|
||
|
|
|| $character < 0x2D
|
||
|
|
|| $character > 0xEFFFD
|
||
|
|
// Noncharacters
|
||
|
|
|| ($character & 0xFFFE) === 0xFFFE
|
||
|
|
|| $character >= 0xFDD0 && $character <= 0xFDEF
|
||
|
|
// Everything else not in iunreserved (this is all BMP)
|
||
|
|
|| $character === 0x2F
|
||
|
|
|| $character > 0x39 && $character < 0x41
|
||
|
|
|| $character > 0x5A && $character < 0x61
|
||
|
|
|| $character > 0x7A && $character < 0x7E
|
||
|
|
|| $character > 0x7E && $character < 0xA0
|
||
|
|
|| $character > 0xD7FF && $character < 0xF900
|
||
|
|
)
|
||
|
|
{
|
||
|
|
for ($j = $start; $j <= $i; $j++)
|
||
|
|
{
|
||
|
|
$string .= '%' . strtoupper($bytes[$j]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
for ($j = $start; $j <= $i; $j++)
|
||
|
|
{
|
||
|
|
$string .= chr(hexdec($bytes[$j]));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// If we have any bytes left over they are invalid (i.e., we are
|
||
|
|
// mid-way through a multi-byte sequence)
|
||
|
|
if ($remaining)
|
||
|
|
{
|
||
|
|
for ($j = $start; $j < $len; $j++)
|
||
|
|
{
|
||
|
|
$string .= '%' . strtoupper($bytes[$j]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $string;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check if the object represents a valid IRI
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function is_valid()
|
||
|
|
{
|
||
|
|
return array_sum($this->valid) === count($this->valid);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the scheme. Returns true on success, false on failure (if there are
|
||
|
|
* any invalid characters).
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $scheme
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function set_scheme($scheme)
|
||
|
|
{
|
||
|
|
if ($scheme === null || $scheme === '')
|
||
|
|
{
|
||
|
|
$this->scheme = null;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$len = strlen($scheme);
|
||
|
|
switch (true)
|
||
|
|
{
|
||
|
|
case $len > 1:
|
||
|
|
if (!strspn($scheme, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-.', 1))
|
||
|
|
{
|
||
|
|
$this->scheme = null;
|
||
|
|
$this->valid[__FUNCTION__] = false;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
case $len > 0:
|
||
|
|
if (!strspn($scheme, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz', 0, 1))
|
||
|
|
{
|
||
|
|
$this->scheme = null;
|
||
|
|
$this->valid[__FUNCTION__] = false;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->scheme = strtolower($scheme);
|
||
|
|
}
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the authority. Returns true on success, false on failure (if there are
|
||
|
|
* any invalid characters).
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $authority
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function set_authority($authority)
|
||
|
|
{
|
||
|
|
if (($userinfo_end = strrpos($authority, '@')) !== false)
|
||
|
|
{
|
||
|
|
$userinfo = substr($authority, 0, $userinfo_end);
|
||
|
|
$authority = substr($authority, $userinfo_end + 1);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$userinfo = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (($port_start = strpos($authority, ':')) !== false)
|
||
|
|
{
|
||
|
|
$port = substr($authority, $port_start + 1);
|
||
|
|
if ($port === false)
|
||
|
|
{
|
||
|
|
$port = null;
|
||
|
|
}
|
||
|
|
$authority = substr($authority, 0, $port_start);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$port = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->set_userinfo($userinfo) && $this->set_host($authority) && $this->set_port($port);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the userinfo.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $userinfo
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function set_userinfo($userinfo)
|
||
|
|
{
|
||
|
|
if ($userinfo === null || $userinfo === '')
|
||
|
|
{
|
||
|
|
$this->userinfo = null;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->userinfo = $this->replace_invalid_with_pct_encoding($userinfo, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$&\'()*+,;=:');
|
||
|
|
}
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the host. Returns true on success, false on failure (if there are
|
||
|
|
* any invalid characters).
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $host
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function set_host($host)
|
||
|
|
{
|
||
|
|
if ($host === null || $host === '')
|
||
|
|
{
|
||
|
|
$this->host = null;
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
elseif ($host[0] === '[' && substr($host, -1) === ']')
|
||
|
|
{
|
||
|
|
if (SimplePie_Net_IPv6::checkIPv6(substr($host, 1, -1)))
|
||
|
|
{
|
||
|
|
$this->host = $host;
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->host = null;
|
||
|
|
$this->valid[__FUNCTION__] = false;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->host = $this->replace_invalid_with_pct_encoding($host, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$&\'()*+,;=', SIMPLEPIE_LOWERCASE);
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the port. Returns true on success, false on failure (if there are
|
||
|
|
* any invalid characters).
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $port
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function set_port($port)
|
||
|
|
{
|
||
|
|
if ($port === null || $port === '')
|
||
|
|
{
|
||
|
|
$this->port = null;
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
elseif (strspn($port, '0123456789') === strlen($port))
|
||
|
|
{
|
||
|
|
$this->port = (int) $port;
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->port = null;
|
||
|
|
$this->valid[__FUNCTION__] = false;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the path.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $path
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function set_path($path)
|
||
|
|
{
|
||
|
|
if ($path === null || $path === '')
|
||
|
|
{
|
||
|
|
$this->path = null;
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
elseif (substr($path, 0, 2) === '//' && $this->userinfo === null && $this->host === null && $this->port === null)
|
||
|
|
{
|
||
|
|
$this->path = null;
|
||
|
|
$this->valid[__FUNCTION__] = false;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->path = $this->replace_invalid_with_pct_encoding($path, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$&\'()*+,;=@/');
|
||
|
|
if ($this->scheme !== null)
|
||
|
|
{
|
||
|
|
$this->path = $this->remove_dot_segments($this->path);
|
||
|
|
}
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the query.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $query
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function set_query($query)
|
||
|
|
{
|
||
|
|
if ($query === null || $query === '')
|
||
|
|
{
|
||
|
|
$this->query = null;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->query = $this->replace_invalid_with_pct_encoding($query, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$\'()*+,;:@/?&=');
|
||
|
|
}
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the fragment.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @param string $fragment
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function set_fragment($fragment)
|
||
|
|
{
|
||
|
|
if ($fragment === null || $fragment === '')
|
||
|
|
{
|
||
|
|
$this->fragment = null;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->fragment = $this->replace_invalid_with_pct_encoding($fragment, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$&\'()*+,;=:@/?');
|
||
|
|
}
|
||
|
|
$this->valid[__FUNCTION__] = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the complete IRI
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_iri()
|
||
|
|
{
|
||
|
|
$iri = '';
|
||
|
|
if ($this->scheme !== null)
|
||
|
|
{
|
||
|
|
$iri .= $this->scheme . ':';
|
||
|
|
}
|
||
|
|
if (($authority = $this->get_authority()) !== null)
|
||
|
|
{
|
||
|
|
$iri .= '//' . $authority;
|
||
|
|
}
|
||
|
|
if ($this->path !== null)
|
||
|
|
{
|
||
|
|
$iri .= $this->path;
|
||
|
|
}
|
||
|
|
if ($this->query !== null)
|
||
|
|
{
|
||
|
|
$iri .= '?' . $this->query;
|
||
|
|
}
|
||
|
|
if ($this->fragment !== null)
|
||
|
|
{
|
||
|
|
$iri .= '#' . $this->fragment;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($iri !== '')
|
||
|
|
{
|
||
|
|
return $iri;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the scheme
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_scheme()
|
||
|
|
{
|
||
|
|
return $this->scheme;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the complete authority
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_authority()
|
||
|
|
{
|
||
|
|
$authority = '';
|
||
|
|
if ($this->userinfo !== null)
|
||
|
|
{
|
||
|
|
$authority .= $this->userinfo . '@';
|
||
|
|
}
|
||
|
|
if ($this->host !== null)
|
||
|
|
{
|
||
|
|
$authority .= $this->host;
|
||
|
|
}
|
||
|
|
if ($this->port !== null)
|
||
|
|
{
|
||
|
|
$authority .= ':' . $this->port;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($authority !== '')
|
||
|
|
{
|
||
|
|
return $authority;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the user information
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_userinfo()
|
||
|
|
{
|
||
|
|
return $this->userinfo;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the host
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_host()
|
||
|
|
{
|
||
|
|
return $this->host;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the port
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_port()
|
||
|
|
{
|
||
|
|
return $this->port;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the path
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_path()
|
||
|
|
{
|
||
|
|
return $this->path;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the query
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_query()
|
||
|
|
{
|
||
|
|
return $this->query;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the fragment
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_fragment()
|
||
|
|
{
|
||
|
|
return $this->fragment;
|
||
|
|
}
|
||
|
|
}
|