Пример #1
0
 /**
  * Make an OAI-PMH request.  Throw an exception if there is an error;
  * return a SimpleXML object on success.
  *
  * @param string $verb   OAI-PMH verb to execute.
  * @param array  $params GET parameters for ListRecords method.
  *
  * @return DOMDocument Response as DOM
  * @throws Exception
  * @throws HTTP_Request2_LogicException
  */
 protected function sendRequest($verb, $params = [])
 {
     // Set up the request:
     $request = new HTTP_Request2($this->baseURL, HTTP_Request2::METHOD_GET, ['ssl_verify_peer' => false]);
     $request->setHeader('User-Agent', 'RecordManager');
     // Load request parameters:
     $url = $request->getURL();
     $params['verb'] = $verb;
     $url->setQueryVariables($params);
     $urlStr = $url->getURL();
     if ($this->debugLog) {
         file_put_contents($this->debugLog, date('Y-m-d H:i:s') . ' [' . getmypid() . "] Request:\n{$urlStr}\n", FILE_APPEND);
     }
     // Perform request and throw an exception on error:
     for ($try = 1; $try <= $this->maxTries; $try++) {
         $this->message("Sending request: {$urlStr}", true);
         try {
             $response = $request->send();
             $code = $response->getStatus();
             if ($code >= 300) {
                 if ($try < $this->maxTries) {
                     $this->message("Request '{$urlStr}' failed ({$code}), retrying in " . "{$this->retryWait} seconds...", false, Logger::WARNING);
                     sleep($this->retryWait);
                     continue;
                 }
                 $this->message("Request '{$urlStr}' failed: {$code}", false, Logger::FATAL);
                 throw new Exception("{$this->source}: Request failed: {$code}");
             }
             $responseStr = $response->getBody();
             if ($this->debugLog) {
                 file_put_contents($this->debugLog, date('Y-m-d H:i:s') . ' [' . getmypid() . "] Response:\n" . "{$responseStr}\n\n", FILE_APPEND);
             }
             return $this->processResponse($responseStr, isset($params['resumptionToken']));
         } catch (Exception $e) {
             if ($try < $this->maxTries) {
                 $this->message("Request '{$urlStr}' failed (" . $e->getMessage() . "), retrying in {$this->retryWait} seconds...", false, Logger::WARNING);
                 sleep($this->retryWait);
                 continue;
             }
             throw new Exception("{$this->source}: " . $e->getMessage());
         }
     }
     throw new Exception("{$this->source}: Request failed");
 }
Пример #2
0
 /**
  * Call MetaLib X-Server
  *
  * @param array $params URL Parameters
  *
  * @return string XML
  * @throws Exception
  */
 protected function callXServer($params)
 {
     $request = new HTTP_Request2($this->baseURL, HTTP_Request2::METHOD_GET, ['ssl_verify_peer' => false]);
     $request->setHeader('User-Agent', 'RecordManager');
     $url = $request->getURL();
     $url->setQueryVariables($params);
     $cleanUrl = preg_replace('/user_password=([^&]+)/', 'user_password=***', $url->getURL());
     $this->_message("Sending request: {$cleanUrl}", true);
     $response = $request->send();
     $code = $response->getStatus();
     if ($code >= 300) {
         $this->_message("Request '{$url}' failed: {$code}", false, Logger::FATAL);
         throw new Exception("Request failed: {$code}");
     }
     $this->_message("Request successful", true);
     return $response->getBody();
 }
Пример #3
0
 /**
  * Fetch a file to be harvested
  *
  * @param string $filename File to retrieve
  *
  * @return string xml
  * @throws Exception
  */
 protected function retrieveFile($filename)
 {
     $request = new HTTP_Request2($this->baseURL . $filename, HTTP_Request2::METHOD_GET, ['ssl_verify_peer' => false]);
     $request->setHeader('User-Agent', 'RecordManager');
     $url = $request->getURL();
     $urlStr = $url->getURL();
     $this->message("Sending request: {$urlStr}", true);
     // Perform request and throw an exception on error:
     $response = null;
     for ($try = 1; $try <= 5; $try++) {
         try {
             $response = $request->send();
         } catch (Exception $e) {
             if ($try < 5) {
                 $this->message("Request '{$urlStr}' failed (" . $e->getMessage() . "), retrying in 30 seconds...", false, Logger::WARNING);
                 sleep(30);
                 continue;
             }
             throw $e;
         }
         if ($try < 5) {
             $code = $response->getStatus();
             if ($code >= 300) {
                 $this->message("Request '{$urlStr}' failed ({$code}), retrying in " . "30 seconds...", false, Logger::WARNING);
                 sleep(30);
                 continue;
             }
         }
         break;
     }
     $code = is_null($response) ? 999 : $response->getStatus();
     if ($code >= 300) {
         $this->message("Request '{$urlStr}' failed: {$code}", false, Logger::FATAL);
         throw new Exception("Request failed: {$code}");
     }
     return $response->getBody();
 }