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[github/wallabag/wallabag.git] / inc / 3rdparty / humble-http-agent / SimplePie_HumbleHttpAgent.php

diff --git a/inc/3rdparty/humble-http-agent/SimplePie_HumbleHttpAgent.php b/inc/3rdparty/humble-http-agent/SimplePie_HumbleHttpAgent.php
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+++ b/inc/3rdparty/humble-http-agent/SimplePie_HumbleHttpAgent.php
@@ -0,0 +1,79 @@
+<?php
+/**
+ * Humble HTTP Agent extension for SimplePie_File
+ * 
+ * This class is designed to extend and override SimplePie_File
+ * in order to prevent duplicate HTTP requests being sent out.
+ * The idea is to initialise an instance of Humble HTTP Agent
+ * and attach it, to a static class variable, of this class.
+ * SimplePie will then automatically initialise this class
+ * 
+ * @date 2011-02-28
+ */
+
+class SimplePie_HumbleHttpAgent extends SimplePie_File
+{
+       protected static $agent;
+       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 static function set_agent(HumbleHttpAgent $agent) {
+               self::$agent = $agent;
+       }
+       
+       public function __construct($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', $url))
+               {
+                       if (!is_array($headers))
+                       {
+                               $headers = array();
+                       }
+                       $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_CURL;
+                       $headers2 = array();
+                       foreach ($headers as $key => $value) {
+                               $headers2[] = "$key: $value";
+                       }
+                       //TODO: allow for HTTP headers
+                       // curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2);
+
+                       $response = self::$agent->get($url);
+                       
+                       if ($response === false || !isset($response['status_code'])) {
+                               $this->error = 'failed to fetch URL';
+                               $this->success = false;
+                       } else {
+                               // The extra lines at the end are there to satisfy SimplePie's HTTP parser.
+                               // The class expects a full HTTP message, whereas we're giving it only
+                               // headers - the new lines indicate the start of the body.
+                               $parser = new SimplePie_HTTP_Parser($response['headers']."\r\n\r\n");
+                               if ($parser->parse()) {
+                                       $this->headers = $parser->headers;
+                                       //$this->body = $parser->body;
+                                       $this->body = $response['body'];
+                                       $this->status_code = $parser->status_code;
+                               }
+                       }
+               }
+               else
+               {
+                       $this->error = 'invalid URL';
+                       $this->success = false;
+               }
+       }
+}
+?>
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