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<?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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