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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
  • PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
<?php
/**
 * SimplePie
 *
 * A PHP-Based RSS and Atom Feed Framework.
 * Takes the hard work out of managing a complete RSS/Atom solution.
 *
 * Copyright (c) 2004-2016, Ryan Parman, Sam 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
 * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
 * @author Ryan Parman
 * @author Sam Sneddon
 * @author Ryan McCue
 * @link http://simplepie.org/ SimplePie
 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 */

/**
 * Used for fetching remote files and reading local files
 *
 * Supports HTTP 1.0 via cURL or fsockopen, with spotty HTTP 1.1 support
 *
 * This class can be overloaded with {@see SimplePie::set_file_class()}
 *
 * @package SimplePie
 * @subpackage HTTP
 * @todo Move to properly supporting RFC2616 (HTTP/1.1)
 */
class SimplePie_File
{
	var $url;
	var $useragent;
	var $success = true;
	var $headers = array();
	var $body;
	var $status_code;
	var $redirects = 0;
	var $error;
	var $method = SIMPLEPIE_FILE_SOURCE_NONE;
	var $permanent_url;

	public function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false, $curl_options = array())
	{
		if (class_exists('idna_convert'))
		{
			$idn = new idna_convert();
			$parsed = SimplePie_Misc::parse_url($url);
			$url = SimplePie_Misc::compress_parse_url($parsed['scheme'], $idn->encode($parsed['authority']), $parsed['path'], $parsed['query'], NULL);
		}
		$this->url = $url;
		$this->permanent_url = $url;
		$this->useragent = $useragent;
		if (preg_match('/^http(s)?:\/\//i', $url))
		{
			if ($useragent === null)
			{
				$useragent = ini_get('user_agent');
				$this->useragent = $useragent;
			}
			if (!is_array($headers))
			{
				$headers = array();
			}
			if (!$force_fsockopen && function_exists('curl_exec'))
			{
				$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_CURL;
				$fp = curl_init();
				$headers2 = array();
				foreach ($headers as $key => $value)
				{
					$headers2[] = "$key: $value";
				}
				if (version_compare(SimplePie_Misc::get_curl_version(), '7.10.5', '>='))
				{
					curl_setopt($fp, CURLOPT_ENCODING, '');
				}
				curl_setopt($fp, CURLOPT_URL, $url);
				curl_setopt($fp, CURLOPT_HEADER, 1);
				curl_setopt($fp, CURLOPT_RETURNTRANSFER, 1);
				curl_setopt($fp, CURLOPT_FAILONERROR, 1);
				curl_setopt($fp, CURLOPT_TIMEOUT, $timeout);
				curl_setopt($fp, CURLOPT_CONNECTTIMEOUT, $timeout);
< curl_setopt($fp, CURLOPT_REFERER, $url);
> curl_setopt($fp, CURLOPT_REFERER, SimplePie_Misc::url_remove_credentials($url));
curl_setopt($fp, CURLOPT_USERAGENT, $useragent); curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2); foreach ($curl_options as $curl_param => $curl_value) { curl_setopt($fp, $curl_param, $curl_value); } $this->headers = curl_exec($fp); if (curl_errno($fp) === 23 || curl_errno($fp) === 61) { curl_setopt($fp, CURLOPT_ENCODING, 'none'); $this->headers = curl_exec($fp); }
> $this->status_code = curl_getinfo($fp, CURLINFO_HTTP_CODE);
if (curl_errno($fp)) { $this->error = 'cURL error ' . curl_errno($fp) . ': ' . curl_error($fp); $this->success = false; } else { // Use the updated url provided by curl_getinfo after any redirects. if ($info = curl_getinfo($fp)) { $this->url = $info['url']; } curl_close($fp); $this->headers = SimplePie_HTTP_Parser::prepareHeaders($this->headers, $info['redirect_count'] + 1); $parser = new SimplePie_HTTP_Parser($this->headers); if ($parser->parse()) { $this->headers = $parser->headers; $this->body = trim($parser->body); $this->status_code = $parser->status_code; if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects) { $this->redirects++; $location = SimplePie_Misc::absolutize_url($this->headers['location'], $url); $previousStatusCode = $this->status_code; $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen, $curl_options); $this->permanent_url = ($previousStatusCode == 301) ? $location : $url; return; } } } } else { $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_FSOCKOPEN; $url_parts = parse_url($url); $socket_host = $url_parts['host']; if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https') { $socket_host = "ssl://$url_parts[host]"; $url_parts['port'] = 443; } if (!isset($url_parts['port'])) { $url_parts['port'] = 80; } $fp = @fsockopen($socket_host, $url_parts['port'], $errno, $errstr, $timeout); if (!$fp) { $this->error = 'fsockopen error: ' . $errstr; $this->success = false; } else { stream_set_timeout($fp, $timeout); if (isset($url_parts['path'])) { if (isset($url_parts['query'])) { $get = "$url_parts[path]?$url_parts[query]"; } else { $get = $url_parts['path']; } } else { $get = '/'; } $out = "GET $get HTTP/1.1\r\n"; $out .= "Host: $url_parts[host]\r\n"; $out .= "User-Agent: $useragent\r\n"; if (extension_loaded('zlib')) { $out .= "Accept-Encoding: x-gzip,gzip,deflate\r\n"; } if (isset($url_parts['user']) && isset($url_parts['pass'])) { $out .= "Authorization: Basic " . base64_encode("$url_parts[user]:$url_parts[pass]") . "\r\n"; } foreach ($headers as $key => $value) { $out .= "$key: $value\r\n"; } $out .= "Connection: Close\r\n\r\n"; fwrite($fp, $out); $info = stream_get_meta_data($fp); $this->headers = ''; while (!$info['eof'] && !$info['timed_out']) { $this->headers .= fread($fp, 1160); $info = stream_get_meta_data($fp); } if (!$info['timed_out']) { $parser = new SimplePie_HTTP_Parser($this->headers); if ($parser->parse()) { $this->headers = $parser->headers; $this->body = $parser->body; $this->status_code = $parser->status_code; if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects) { $this->redirects++; $location = SimplePie_Misc::absolutize_url($this->headers['location'], $url); $previousStatusCode = $this->status_code; $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen, $curl_options); $this->permanent_url = ($previousStatusCode == 301) ? $location : $url; return; } if (isset($this->headers['content-encoding'])) { // Hey, we act dumb elsewhere, so let's do that here too switch (strtolower(trim($this->headers['content-encoding'], "\x09\x0A\x0D\x20"))) { case 'gzip': case 'x-gzip': $decoder = new SimplePie_gzdecode($this->body); if (!$decoder->parse()) { $this->error = 'Unable to decode HTTP "gzip" stream'; $this->success = false; } else { $this->body = trim($decoder->data); } break; case 'deflate': if (($decompressed = gzinflate($this->body)) !== false) { $this->body = $decompressed; } else if (($decompressed = gzuncompress($this->body)) !== false) { $this->body = $decompressed; } else if (function_exists('gzdecode') && ($decompressed = gzdecode($this->body)) !== false) { $this->body = $decompressed; } else { $this->error = 'Unable to decode HTTP "deflate" stream'; $this->success = false; } break; default: $this->error = 'Unknown content coding'; $this->success = false; } } } } else { $this->error = 'fsocket timed out'; $this->success = false; } fclose($fp); } } } else { $this->method = SIMPLEPIE_FILE_SOURCE_LOCAL | SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS; if (empty($url) || !($this->body = trim(file_get_contents($url)))) { $this->error = 'file_get_contents could not read the file'; $this->success = false; } } } }
> > class_alias('SimplePie_File', 'SimplePie\File', false);