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[autoinstalls/wordpress.git] / wp-includes / SimplePie / File.php
diff --git a/wp-includes/SimplePie/File.php b/wp-includes/SimplePie/File.php
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+<?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 1.3.1
+ * @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
+ */
+
+/**
+ * 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 $method = SIMPLEPIE_FILE_SOURCE_NONE;
+
+       public function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false)
+       {
+               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'], $parsed['fragment']);
+               }
+               $this->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_TIMEOUT, $timeout);
+                               curl_setopt($fp, CURLOPT_CONNECTTIMEOUT, $timeout);
+                               curl_setopt($fp, CURLOPT_REFERER, $url);
+                               curl_setopt($fp, CURLOPT_USERAGENT, $useragent);
+                               curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2);
+                               if (!ini_get('open_basedir') && !ini_get('safe_mode') && version_compare(SimplePie_Misc::get_curl_version(), '7.15.2', '>='))
+                               {
+                                       curl_setopt($fp, CURLOPT_FOLLOWLOCATION, 1);
+                                       curl_setopt($fp, CURLOPT_MAXREDIRS, $redirects);
+                               }
+
+                               $this->headers = curl_exec($fp);
+                               if (curl_errno($fp) === 23 || curl_errno($fp) === 61)
+                               {
+                                       curl_setopt($fp, CURLOPT_ENCODING, 'none');
+                                       $this->headers = curl_exec($fp);
+                               }
+                               if (curl_errno($fp))
+                               {
+                                       $this->error = 'cURL error ' . curl_errno($fp) . ': ' . curl_error($fp);
+                                       $this->success = false;
+                               }
+                               else
+                               {
+                                       $info = curl_getinfo($fp);
+                                       curl_close($fp);
+                                       $this->headers = explode("\r\n\r\n", $this->headers, $info['redirect_count'] + 1);
+                                       $this->headers = array_pop($this->headers);
+                                       $parser = new SimplePie_HTTP_Parser($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);
+                                                       return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
+                                               }
+                                       }
+                               }
+                       }
+                       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);
+                                                               return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
+                                                       }
+                                                       if (isset($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 = $decoder->data;
+                                                                               }
+                                                                               break;
+
+                                                                       case 'deflate':
+                                                                               if (($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
+               {
+                       $this->method = SIMPLEPIE_FILE_SOURCE_LOCAL | SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS;
+                       if (!$this->body = file_get_contents($url))
+                       {
+                               $this->error = 'file_get_contents could not read the file';
+                               $this->success = false;
+                       }
+               }
+       }
+}