mirror of
https://github.com/WordPress/WordPress.git
synced 2024-08-10 06:44:26 +02:00
405a995659
Uses individual files for each class. We now conditionally load only the pieces we need, resulting in less memory usage. Also easier to maintain now that it is not a single 387KB file. fixes #21183. git-svn-id: http://core.svn.wordpress.org/trunk@21644 1a063a9b-81f0-0310-95a4-ce76da25c4cd
404 lines
12 KiB
PHP
Executable File
404 lines
12 KiB
PHP
Executable File
<?php
|
|
/**
|
|
* SimplePie
|
|
*
|
|
* A PHP-Based RSS and Atom Feed Framework.
|
|
* Takes the hard work out of managing a complete RSS/Atom solution.
|
|
*
|
|
* Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
|
|
* 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.
|
|
*
|
|
* @package SimplePie
|
|
* @version 1.3
|
|
* @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
|
|
* @author Ryan Parman
|
|
* @author Geoffrey Sneddon
|
|
* @author Ryan McCue
|
|
* @link http://simplepie.org/ SimplePie
|
|
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
|
|
*/
|
|
|
|
/**
|
|
* Parses XML into something sane
|
|
*
|
|
*
|
|
* This class can be overloaded with {@see SimplePie::set_parser_class()}
|
|
*
|
|
* @package SimplePie
|
|
* @subpackage Parsing
|
|
*/
|
|
class SimplePie_Parser
|
|
{
|
|
var $error_code;
|
|
var $error_string;
|
|
var $current_line;
|
|
var $current_column;
|
|
var $current_byte;
|
|
var $separator = ' ';
|
|
var $namespace = array('');
|
|
var $element = array('');
|
|
var $xml_base = array('');
|
|
var $xml_base_explicit = array(false);
|
|
var $xml_lang = array('');
|
|
var $data = array();
|
|
var $datas = array(array());
|
|
var $current_xhtml_construct = -1;
|
|
var $encoding;
|
|
protected $registry;
|
|
|
|
public function set_registry(SimplePie_Registry $registry)
|
|
{
|
|
$this->registry = $registry;
|
|
}
|
|
|
|
public function parse(&$data, $encoding)
|
|
{
|
|
// Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
|
|
if (strtoupper($encoding) === 'US-ASCII')
|
|
{
|
|
$this->encoding = 'UTF-8';
|
|
}
|
|
else
|
|
{
|
|
$this->encoding = $encoding;
|
|
}
|
|
|
|
// Strip BOM:
|
|
// UTF-32 Big Endian BOM
|
|
if (substr($data, 0, 4) === "\x00\x00\xFE\xFF")
|
|
{
|
|
$data = substr($data, 4);
|
|
}
|
|
// UTF-32 Little Endian BOM
|
|
elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00")
|
|
{
|
|
$data = substr($data, 4);
|
|
}
|
|
// UTF-16 Big Endian BOM
|
|
elseif (substr($data, 0, 2) === "\xFE\xFF")
|
|
{
|
|
$data = substr($data, 2);
|
|
}
|
|
// UTF-16 Little Endian BOM
|
|
elseif (substr($data, 0, 2) === "\xFF\xFE")
|
|
{
|
|
$data = substr($data, 2);
|
|
}
|
|
// UTF-8 BOM
|
|
elseif (substr($data, 0, 3) === "\xEF\xBB\xBF")
|
|
{
|
|
$data = substr($data, 3);
|
|
}
|
|
|
|
if (substr($data, 0, 5) === '<?xml' && strspn(substr($data, 5, 1), "\x09\x0A\x0D\x20") && ($pos = strpos($data, '?>')) !== false)
|
|
{
|
|
$declaration = $this->registry->create('XML_Declaration_Parser', array(substr($data, 5, $pos - 5)));
|
|
if ($declaration->parse())
|
|
{
|
|
$data = substr($data, $pos + 2);
|
|
$data = '<?xml version="' . $declaration->version . '" encoding="' . $encoding . '" standalone="' . (($declaration->standalone) ? 'yes' : 'no') . '"?>' . $data;
|
|
}
|
|
else
|
|
{
|
|
$this->error_string = 'SimplePie bug! Please report this!';
|
|
return false;
|
|
}
|
|
}
|
|
|
|
$return = true;
|
|
|
|
static $xml_is_sane = null;
|
|
if ($xml_is_sane === null)
|
|
{
|
|
$parser_check = xml_parser_create();
|
|
xml_parse_into_struct($parser_check, '<foo>&</foo>', $values);
|
|
xml_parser_free($parser_check);
|
|
$xml_is_sane = isset($values[0]['value']);
|
|
}
|
|
|
|
// Create the parser
|
|
if ($xml_is_sane)
|
|
{
|
|
$xml = xml_parser_create_ns($this->encoding, $this->separator);
|
|
xml_parser_set_option($xml, XML_OPTION_SKIP_WHITE, 1);
|
|
xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, 0);
|
|
xml_set_object($xml, $this);
|
|
xml_set_character_data_handler($xml, 'cdata');
|
|
xml_set_element_handler($xml, 'tag_open', 'tag_close');
|
|
|
|
// Parse!
|
|
if (!xml_parse($xml, $data, true))
|
|
{
|
|
$this->error_code = xml_get_error_code($xml);
|
|
$this->error_string = xml_error_string($this->error_code);
|
|
$return = false;
|
|
}
|
|
$this->current_line = xml_get_current_line_number($xml);
|
|
$this->current_column = xml_get_current_column_number($xml);
|
|
$this->current_byte = xml_get_current_byte_index($xml);
|
|
xml_parser_free($xml);
|
|
return $return;
|
|
}
|
|
else
|
|
{
|
|
libxml_clear_errors();
|
|
$xml = new XMLReader();
|
|
$xml->xml($data);
|
|
while (@$xml->read())
|
|
{
|
|
switch ($xml->nodeType)
|
|
{
|
|
|
|
case constant('XMLReader::END_ELEMENT'):
|
|
if ($xml->namespaceURI !== '')
|
|
{
|
|
$tagName = $xml->namespaceURI . $this->separator . $xml->localName;
|
|
}
|
|
else
|
|
{
|
|
$tagName = $xml->localName;
|
|
}
|
|
$this->tag_close(null, $tagName);
|
|
break;
|
|
case constant('XMLReader::ELEMENT'):
|
|
$empty = $xml->isEmptyElement;
|
|
if ($xml->namespaceURI !== '')
|
|
{
|
|
$tagName = $xml->namespaceURI . $this->separator . $xml->localName;
|
|
}
|
|
else
|
|
{
|
|
$tagName = $xml->localName;
|
|
}
|
|
$attributes = array();
|
|
while ($xml->moveToNextAttribute())
|
|
{
|
|
if ($xml->namespaceURI !== '')
|
|
{
|
|
$attrName = $xml->namespaceURI . $this->separator . $xml->localName;
|
|
}
|
|
else
|
|
{
|
|
$attrName = $xml->localName;
|
|
}
|
|
$attributes[$attrName] = $xml->value;
|
|
}
|
|
$this->tag_open(null, $tagName, $attributes);
|
|
if ($empty)
|
|
{
|
|
$this->tag_close(null, $tagName);
|
|
}
|
|
break;
|
|
case constant('XMLReader::TEXT'):
|
|
|
|
case constant('XMLReader::CDATA'):
|
|
$this->cdata(null, $xml->value);
|
|
break;
|
|
}
|
|
}
|
|
if ($error = libxml_get_last_error())
|
|
{
|
|
$this->error_code = $error->code;
|
|
$this->error_string = $error->message;
|
|
$this->current_line = $error->line;
|
|
$this->current_column = $error->column;
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
public function get_error_code()
|
|
{
|
|
return $this->error_code;
|
|
}
|
|
|
|
public function get_error_string()
|
|
{
|
|
return $this->error_string;
|
|
}
|
|
|
|
public function get_current_line()
|
|
{
|
|
return $this->current_line;
|
|
}
|
|
|
|
public function get_current_column()
|
|
{
|
|
return $this->current_column;
|
|
}
|
|
|
|
public function get_current_byte()
|
|
{
|
|
return $this->current_byte;
|
|
}
|
|
|
|
public function get_data()
|
|
{
|
|
return $this->data;
|
|
}
|
|
|
|
public function tag_open($parser, $tag, $attributes)
|
|
{
|
|
list($this->namespace[], $this->element[]) = $this->split_ns($tag);
|
|
|
|
$attribs = array();
|
|
foreach ($attributes as $name => $value)
|
|
{
|
|
list($attrib_namespace, $attribute) = $this->split_ns($name);
|
|
$attribs[$attrib_namespace][$attribute] = $value;
|
|
}
|
|
|
|
if (isset($attribs[SIMPLEPIE_NAMESPACE_XML]['base']))
|
|
{
|
|
$this->xml_base[] = $this->registry->call('Misc', 'absolutize_url', array($attribs[SIMPLEPIE_NAMESPACE_XML]['base'], end($this->xml_base)));
|
|
$this->xml_base_explicit[] = true;
|
|
}
|
|
else
|
|
{
|
|
$this->xml_base[] = end($this->xml_base);
|
|
$this->xml_base_explicit[] = end($this->xml_base_explicit);
|
|
}
|
|
|
|
if (isset($attribs[SIMPLEPIE_NAMESPACE_XML]['lang']))
|
|
{
|
|
$this->xml_lang[] = $attribs[SIMPLEPIE_NAMESPACE_XML]['lang'];
|
|
}
|
|
else
|
|
{
|
|
$this->xml_lang[] = end($this->xml_lang);
|
|
}
|
|
|
|
if ($this->current_xhtml_construct >= 0)
|
|
{
|
|
$this->current_xhtml_construct++;
|
|
if (end($this->namespace) === SIMPLEPIE_NAMESPACE_XHTML)
|
|
{
|
|
$this->data['data'] .= '<' . end($this->element);
|
|
if (isset($attribs['']))
|
|
{
|
|
foreach ($attribs[''] as $name => $value)
|
|
{
|
|
$this->data['data'] .= ' ' . $name . '="' . htmlspecialchars($value, ENT_COMPAT, $this->encoding) . '"';
|
|
}
|
|
}
|
|
$this->data['data'] .= '>';
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$this->datas[] =& $this->data;
|
|
$this->data =& $this->data['child'][end($this->namespace)][end($this->element)][];
|
|
$this->data = array('data' => '', 'attribs' => $attribs, 'xml_base' => end($this->xml_base), 'xml_base_explicit' => end($this->xml_base_explicit), 'xml_lang' => end($this->xml_lang));
|
|
if ((end($this->namespace) === SIMPLEPIE_NAMESPACE_ATOM_03 && in_array(end($this->element), array('title', 'tagline', 'copyright', 'info', 'summary', 'content')) && isset($attribs['']['mode']) && $attribs['']['mode'] === 'xml')
|
|
|| (end($this->namespace) === SIMPLEPIE_NAMESPACE_ATOM_10 && in_array(end($this->element), array('rights', 'subtitle', 'summary', 'info', 'title', 'content')) && isset($attribs['']['type']) && $attribs['']['type'] === 'xhtml')
|
|
|| (end($this->namespace) === SIMPLEPIE_NAMESPACE_RSS_20 && in_array(end($this->element), array('title')))
|
|
|| (end($this->namespace) === SIMPLEPIE_NAMESPACE_RSS_090 && in_array(end($this->element), array('title')))
|
|
|| (end($this->namespace) === SIMPLEPIE_NAMESPACE_RSS_10 && in_array(end($this->element), array('title'))))
|
|
{
|
|
$this->current_xhtml_construct = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
public function cdata($parser, $cdata)
|
|
{
|
|
if ($this->current_xhtml_construct >= 0)
|
|
{
|
|
$this->data['data'] .= htmlspecialchars($cdata, ENT_QUOTES, $this->encoding);
|
|
}
|
|
else
|
|
{
|
|
$this->data['data'] .= $cdata;
|
|
}
|
|
}
|
|
|
|
public function tag_close($parser, $tag)
|
|
{
|
|
if ($this->current_xhtml_construct >= 0)
|
|
{
|
|
$this->current_xhtml_construct--;
|
|
if (end($this->namespace) === SIMPLEPIE_NAMESPACE_XHTML && !in_array(end($this->element), array('area', 'base', 'basefont', 'br', 'col', 'frame', 'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param')))
|
|
{
|
|
$this->data['data'] .= '</' . end($this->element) . '>';
|
|
}
|
|
}
|
|
if ($this->current_xhtml_construct === -1)
|
|
{
|
|
$this->data =& $this->datas[count($this->datas) - 1];
|
|
array_pop($this->datas);
|
|
}
|
|
|
|
array_pop($this->element);
|
|
array_pop($this->namespace);
|
|
array_pop($this->xml_base);
|
|
array_pop($this->xml_base_explicit);
|
|
array_pop($this->xml_lang);
|
|
}
|
|
|
|
public function split_ns($string)
|
|
{
|
|
static $cache = array();
|
|
if (!isset($cache[$string]))
|
|
{
|
|
if ($pos = strpos($string, $this->separator))
|
|
{
|
|
static $separator_length;
|
|
if (!$separator_length)
|
|
{
|
|
$separator_length = strlen($this->separator);
|
|
}
|
|
$namespace = substr($string, 0, $pos);
|
|
$local_name = substr($string, $pos + $separator_length);
|
|
if (strtolower($namespace) === SIMPLEPIE_NAMESPACE_ITUNES)
|
|
{
|
|
$namespace = SIMPLEPIE_NAMESPACE_ITUNES;
|
|
}
|
|
|
|
// Normalize the Media RSS namespaces
|
|
if ($namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG ||
|
|
$namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG2 ||
|
|
$namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG3 ||
|
|
$namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG4 ||
|
|
$namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG5 )
|
|
{
|
|
$namespace = SIMPLEPIE_NAMESPACE_MEDIARSS;
|
|
}
|
|
$cache[$string] = array($namespace, $local_name);
|
|
}
|
|
else
|
|
{
|
|
$cache[$string] = array('', $string);
|
|
}
|
|
}
|
|
return $cache[$string];
|
|
}
|
|
}
|