oxopenidhttpfetcher.php

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00001 <?php
00002 
00003 require_once "Auth/Yadis/HTTPFetcher.php";
00004 require_once "Auth/OpenID.php";
00005 
00010 class oxOpenIdHTTPFetcher extends Auth_Yadis_ParanoidHTTPFetcher
00011 {
00020     public function get($url, $extra_headers = null)
00021     {
00022         if (!$this->canFetchURL($url)) {
00023             return null;
00024         }
00025 
00026         $stop = time() + $this->timeout;
00027         $off = $this->timeout;
00028 
00029         $redir = true;
00030 
00031         while ($redir && ($off > 0)) {
00032             $this->reset();
00033 
00034             $c = curl_init();
00035 
00036             if ($c === false) {
00037                 Auth_OpenID::log(
00038                     "curl_init returned false; could not " .
00039                     "initialize for URL '%s'", $url);
00040                 return null;
00041             }
00042 
00043             if (defined('CURLOPT_NOSIGNAL')) {
00044                 curl_setopt($c, CURLOPT_NOSIGNAL, true);
00045             }
00046 
00047             if (!$this->allowedURL($url)) {
00048                 Auth_OpenID::log("Fetching URL not allowed: %s",
00049                                  $url);
00050                 return null;
00051             }
00052 
00053             curl_setopt($c, CURLOPT_WRITEFUNCTION,
00054                         array(&$this, "_writeData"));
00055             curl_setopt($c, CURLOPT_HEADERFUNCTION,
00056                         array(&$this, "_writeHeader"));
00057 
00058             if ($extra_headers) {
00059                 curl_setopt($c, CURLOPT_HTTPHEADER, $extra_headers);
00060             }
00061 
00062             $cv = curl_version();
00063             if ( is_array( $cv ) ) {
00064                 $curl_user_agent = 'curl/'.$cv['version'];
00065             } else {
00066                 $curl_user_agent = $cv;
00067             }
00068 
00069             curl_setopt($c, CURLOPT_SSL_VERIFYPEER, false);
00070             curl_setopt($c, CURLOPT_SSL_VERIFYHOST, false);
00071             curl_setopt($c, CURLOPT_USERAGENT,
00072                         Auth_OpenID_USER_AGENT.' '.$curl_user_agent);
00073             curl_setopt($c, CURLOPT_TIMEOUT, $off);
00074             curl_setopt($c, CURLOPT_URL, $url);
00075             curl_setopt($c, CURLOPT_RANGE,
00076                         "0-".(1024 * Auth_OpenID_FETCHER_MAX_RESPONSE_KB));
00077 
00078             curl_exec($c);
00079 
00080             $code = curl_getinfo($c, CURLINFO_HTTP_CODE);
00081             $body = $this->data;
00082             $headers = $this->headers;
00083 
00084             if (!$code) {
00085                 Auth_OpenID::log("Got no response code when fetching %s", $url);
00086                 Auth_OpenID::log("CURL error (%s): %s",
00087                                  curl_errno($c), curl_error($c));
00088                 return null;
00089             }
00090 
00091             if (in_array($code, array(301, 302, 303, 307))) {
00092                 $url = $this->_findRedirect($headers);
00093                 $redir = true;
00094             } else {
00095                 $redir = false;
00096                 curl_close($c);
00097 
00098                 $new_headers = array();
00099 
00100                 foreach ($headers as $header) {
00101                     if (strpos($header, ': ')) {
00102                         list($name, $value) = explode(': ', $header, 2);
00103                         $new_headers[$name] = $value;
00104                     }
00105                 }
00106 
00107                 Auth_OpenID::log(
00108                     "Successfully fetched '%s': GET response code %s",
00109                     $url, $code);
00110 
00111                 return new Auth_Yadis_HTTPResponse($url, $code,
00112                                                     $new_headers, $body);
00113             }
00114 
00115             $off = $stop - time();
00116         }
00117 
00118         return null;
00119     }
00120 
00130     public function post($url, $body, $extra_headers = null)
00131     {
00132         if (!$this->canFetchURL($url)) {
00133             return null;
00134         }
00135 
00136         $this->reset();
00137 
00138         $c = curl_init();
00139 
00140         if (defined('CURLOPT_NOSIGNAL')) {
00141             curl_setopt($c, CURLOPT_NOSIGNAL, true);
00142         }
00143 
00144         curl_setopt ($c, CURLOPT_SSL_VERIFYPEER, false);
00145         curl_setopt ($c, CURLOPT_SSL_VERIFYHOST, false);
00146         curl_setopt($c, CURLOPT_POST, true);
00147         curl_setopt($c, CURLOPT_POSTFIELDS, $body);
00148         curl_setopt($c, CURLOPT_TIMEOUT, $this->timeout);
00149         curl_setopt($c, CURLOPT_URL, $url);
00150         curl_setopt($c, CURLOPT_WRITEFUNCTION,
00151                     array(&$this, "_writeData"));
00152 
00153         curl_exec($c);
00154 
00155         $code = curl_getinfo($c, CURLINFO_HTTP_CODE);
00156 
00157         if (!$code) {
00158             Auth_OpenID::log("Got no response code when fetching %s", $url);
00159             return null;
00160         }
00161 
00162         $body = $this->data;
00163 
00164         curl_close($c);
00165 
00166         $new_headers = $extra_headers;
00167 
00168         foreach ($this->headers as $header) {
00169             if (strpos($header, ': ')) {
00170                 list($name, $value) = explode(': ', $header, 2);
00171                 $new_headers[$name] = $value;
00172             }
00173 
00174         }
00175 
00176         Auth_OpenID::log("Successfully fetched '%s': POST response code %s",
00177                          $url, $code);
00178 
00179         return new Auth_Yadis_HTTPResponse($url, $code,
00180                                            $new_headers, $body);
00181     }
00182 
00188     protected function _isSSL()
00189     {
00190         $v = curl_version();
00191         if ( is_array( $v ) ) {
00192             return in_array('https', $v['protocols']);
00193         }
00194         return false;
00195     }
00196 }

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