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a72e30d847
This brings SimplePie in sync with the most up to date version, 1.5.5. This update brings many bug fixes, small enhancements, and PHP compatibility fixes for newer versions of PHP. For a full list of changes, see https://github.com/simplepie/simplepie/blob/master/CHANGELOG.md#155-may-1-2020. Props dshanske, slushman, etruel, wpshades, dmenard, desrosj, hareesh-pillai, stevenkword, jrf, Ipstenu, johnbillion. Fixes #36669. Built from https://develop.svn.wordpress.org/trunk@47733 git-svn-id: http://core.svn.wordpress.org/trunk@47509 1a063a9b-81f0-0310-95a4-ce76da25c4cd
306 lines
10 KiB
PHP
306 lines
10 KiB
PHP
<?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) 2004-2016, Ryan Parman, Sam 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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* @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
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* @author Ryan Parman
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* @author Sam 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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*/
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/**
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* Used for fetching remote files and reading local files
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*
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* Supports HTTP 1.0 via cURL or fsockopen, with spotty HTTP 1.1 support
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*
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* This class can be overloaded with {@see SimplePie::set_file_class()}
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*
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* @package SimplePie
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* @subpackage HTTP
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* @todo Move to properly supporting RFC2616 (HTTP/1.1)
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*/
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class SimplePie_File
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{
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var $url;
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var $useragent;
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var $success = true;
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var $headers = array();
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var $body;
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var $status_code;
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var $redirects = 0;
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var $error;
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var $method = SIMPLEPIE_FILE_SOURCE_NONE;
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var $permanent_url;
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public function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false, $curl_options = array())
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{
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if (class_exists('idna_convert'))
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{
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$idn = new idna_convert();
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$parsed = SimplePie_Misc::parse_url($url);
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$url = SimplePie_Misc::compress_parse_url($parsed['scheme'], $idn->encode($parsed['authority']), $parsed['path'], $parsed['query'], NULL);
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}
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$this->url = $url;
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$this->permanent_url = $url;
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$this->useragent = $useragent;
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if (preg_match('/^http(s)?:\/\//i', $url))
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{
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if ($useragent === null)
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{
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$useragent = ini_get('user_agent');
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$this->useragent = $useragent;
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}
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if (!is_array($headers))
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{
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$headers = array();
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}
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if (!$force_fsockopen && function_exists('curl_exec'))
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{
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$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_CURL;
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$fp = curl_init();
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$headers2 = array();
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foreach ($headers as $key => $value)
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{
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$headers2[] = "$key: $value";
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}
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if (version_compare(SimplePie_Misc::get_curl_version(), '7.10.5', '>='))
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{
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curl_setopt($fp, CURLOPT_ENCODING, '');
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}
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curl_setopt($fp, CURLOPT_URL, $url);
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curl_setopt($fp, CURLOPT_HEADER, 1);
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curl_setopt($fp, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($fp, CURLOPT_FAILONERROR, 1);
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curl_setopt($fp, CURLOPT_TIMEOUT, $timeout);
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curl_setopt($fp, CURLOPT_CONNECTTIMEOUT, $timeout);
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curl_setopt($fp, CURLOPT_REFERER, $url);
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curl_setopt($fp, CURLOPT_USERAGENT, $useragent);
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curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2);
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if (!ini_get('open_basedir') && version_compare(SimplePie_Misc::get_curl_version(), '7.15.2', '>='))
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{
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curl_setopt($fp, CURLOPT_FOLLOWLOCATION, 1);
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curl_setopt($fp, CURLOPT_MAXREDIRS, $redirects);
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}
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foreach ($curl_options as $curl_param => $curl_value) {
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curl_setopt($fp, $curl_param, $curl_value);
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}
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$this->headers = curl_exec($fp);
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if (curl_errno($fp) === 23 || curl_errno($fp) === 61)
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{
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curl_setopt($fp, CURLOPT_ENCODING, 'none');
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$this->headers = curl_exec($fp);
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}
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if (curl_errno($fp))
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{
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$this->error = 'cURL error ' . curl_errno($fp) . ': ' . curl_error($fp);
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$this->success = false;
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}
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else
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{
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// Use the updated url provided by curl_getinfo after any redirects.
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if ($info = curl_getinfo($fp)) {
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$this->url = $info['url'];
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}
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curl_close($fp);
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$this->headers = SimplePie_HTTP_Parser::prepareHeaders($this->headers, $info['redirect_count'] + 1);
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$parser = new SimplePie_HTTP_Parser($this->headers);
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if ($parser->parse())
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{
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$this->headers = $parser->headers;
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$this->body = trim($parser->body);
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$this->status_code = $parser->status_code;
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if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
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{
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$this->redirects++;
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$location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
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$previousStatusCode = $this->status_code;
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$this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
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$this->permanent_url = ($previousStatusCode == 301) ? $location : $url;
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return;
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}
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}
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}
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}
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else
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{
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$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_FSOCKOPEN;
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$url_parts = parse_url($url);
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$socket_host = $url_parts['host'];
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if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https')
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{
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$socket_host = "ssl://$url_parts[host]";
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$url_parts['port'] = 443;
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}
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if (!isset($url_parts['port']))
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{
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$url_parts['port'] = 80;
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}
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$fp = @fsockopen($socket_host, $url_parts['port'], $errno, $errstr, $timeout);
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if (!$fp)
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{
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$this->error = 'fsockopen error: ' . $errstr;
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$this->success = false;
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}
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else
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{
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stream_set_timeout($fp, $timeout);
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if (isset($url_parts['path']))
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{
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if (isset($url_parts['query']))
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{
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$get = "$url_parts[path]?$url_parts[query]";
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}
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else
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{
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$get = $url_parts['path'];
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}
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}
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else
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{
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$get = '/';
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}
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$out = "GET $get HTTP/1.1\r\n";
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$out .= "Host: $url_parts[host]\r\n";
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$out .= "User-Agent: $useragent\r\n";
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if (extension_loaded('zlib'))
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{
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$out .= "Accept-Encoding: x-gzip,gzip,deflate\r\n";
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}
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if (isset($url_parts['user']) && isset($url_parts['pass']))
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{
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$out .= "Authorization: Basic " . base64_encode("$url_parts[user]:$url_parts[pass]") . "\r\n";
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}
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foreach ($headers as $key => $value)
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{
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$out .= "$key: $value\r\n";
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}
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$out .= "Connection: Close\r\n\r\n";
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fwrite($fp, $out);
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$info = stream_get_meta_data($fp);
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$this->headers = '';
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while (!$info['eof'] && !$info['timed_out'])
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{
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$this->headers .= fread($fp, 1160);
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$info = stream_get_meta_data($fp);
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}
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if (!$info['timed_out'])
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{
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$parser = new SimplePie_HTTP_Parser($this->headers);
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if ($parser->parse())
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{
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$this->headers = $parser->headers;
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$this->body = $parser->body;
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$this->status_code = $parser->status_code;
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if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
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{
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$this->redirects++;
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$location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
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$previousStatusCode = $this->status_code;
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$this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
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$this->permanent_url = ($previousStatusCode == 301) ? $location : $url;
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return;
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}
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if (isset($this->headers['content-encoding']))
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{
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// Hey, we act dumb elsewhere, so let's do that here too
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switch (strtolower(trim($this->headers['content-encoding'], "\x09\x0A\x0D\x20")))
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{
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case 'gzip':
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case 'x-gzip':
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$decoder = new SimplePie_gzdecode($this->body);
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if (!$decoder->parse())
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{
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$this->error = 'Unable to decode HTTP "gzip" stream';
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$this->success = false;
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}
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else
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{
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$this->body = trim($decoder->data);
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}
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break;
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case 'deflate':
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if (($decompressed = gzinflate($this->body)) !== false)
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{
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$this->body = $decompressed;
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}
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else if (($decompressed = gzuncompress($this->body)) !== false)
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{
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$this->body = $decompressed;
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}
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else if (function_exists('gzdecode') && ($decompressed = gzdecode($this->body)) !== false)
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{
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$this->body = $decompressed;
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}
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else
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{
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$this->error = 'Unable to decode HTTP "deflate" stream';
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$this->success = false;
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}
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break;
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default:
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$this->error = 'Unknown content coding';
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$this->success = false;
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}
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}
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}
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}
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else
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{
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$this->error = 'fsocket timed out';
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$this->success = false;
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}
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fclose($fp);
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}
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}
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}
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else
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{
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$this->method = SIMPLEPIE_FILE_SOURCE_LOCAL | SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS;
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if (empty($url) || !($this->body = trim(file_get_contents($url))))
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{
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$this->error = 'file_get_contents could not read the file';
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$this->success = false;
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}
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}
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}
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}
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