/** * Send the HTTP request and return an HTTP response object * * @param string $method * @return Sh_Zend_Http_Response * @throws Sh_Zend_Http_Client_Exception */ public function request($method = null) { if (!$this->uri instanceof Sh_Zend_Uri_Http) { /** @see Sh_Zend_Http_Client_Exception */ require_once sh404SEF_ADMIN_ABS_PATH . 'lib/Zend/Http/Client/Exception.php'; throw new Sh_Zend_Http_Client_Exception('No valid URI has been passed to the client'); } if ($method) { $this->setMethod($method); } $this->redirectCounter = 0; $response = null; // Make sure the adapter is loaded if ($this->adapter == null) { $this->setAdapter($this->config['adapter']); } // Send the first request. If redirected, continue. do { // Clone the URI and add the additional GET parameters to it $uri = clone $this->uri; if (!empty($this->paramsGet)) { $query = $uri->getQuery(); if (!empty($query)) { $query .= '&'; } $query .= http_build_query($this->paramsGet, null, '&'); $uri->setQuery($query); } $body = $this->_prepareBody(); $headers = $this->_prepareHeaders(); // check that adapter supports streaming before using it if (is_resource($body) && !$this->adapter instanceof Sh_Zend_Http_Client_Adapter_Stream) { /** @see Sh_Zend_Http_Client_Exception */ require_once sh404SEF_ADMIN_ABS_PATH . 'lib/Zend/Http/Client/Exception.php'; throw new Sh_Zend_Http_Client_Exception('Adapter does not support streaming'); } // Open the connection, send the request and read the response $this->adapter->connect($uri->getHost(), $uri->getPort(), $uri->getScheme() == 'https' ? true : false); if ($this->config['output_stream']) { if ($this->adapter instanceof Sh_Zend_Http_Client_Adapter_Stream) { $stream = $this->_openTempStream(); $this->adapter->setOutputStream($stream); } else { /** @see Sh_Zend_Http_Client_Exception */ require_once sh404SEF_ADMIN_ABS_PATH . 'lib/Zend/Http/Client/Exception.php'; throw new Sh_Zend_Http_Client_Exception('Adapter does not support streaming'); } } $this->last_request = $this->adapter->write($this->method, $uri, $this->config['httpversion'], $headers, $body); $response = $this->adapter->read(); if (!$response) { /** @see Sh_Zend_Http_Client_Exception */ require_once sh404SEF_ADMIN_ABS_PATH . 'lib/Zend/Http/Client/Exception.php'; throw new Sh_Zend_Http_Client_Exception('Unable to read response, or response is empty'); } if ($this->config['output_stream']) { rewind($stream); // cleanup the adapter $this->adapter->setOutputStream(null); $response = Sh_Zend_Http_Response_Stream::fromStream($response, $stream); $response->setStreamName($this->_stream_name); if (!is_string($this->config['output_stream'])) { // we used temp name, will need to clean up $response->setCleanup(true); } } else { $response = Sh_Zend_Http_Response::fromString($response); } if ($this->config['storeresponse']) { $this->last_response = $response; } // Load cookies into cookie jar if (isset($this->cookiejar)) { $this->cookiejar->addCookiesFromResponse($response, $uri); } // If we got redirected, look for the Location header if ($response->isRedirect() && ($location = $response->getHeader('location'))) { // Check whether we send the exact same request again, or drop the parameters // and send a GET request if ($response->getStatus() == 303 || !$this->config['strictredirects'] && ($response->getStatus() == 302 || $response->getStatus() == 301)) { $this->resetParameters(); $this->setMethod(self::GET); } // If we got a well formed absolute URI if (Sh_Zend_Uri_Http::check($location)) { $this->setHeaders('host', null); $this->setUri($location); } else { // Split into path and query and set the query if (strpos($location, '?') !== false) { list($location, $query) = explode('?', $location, 2); } else { $query = ''; } $this->uri->setQuery($query); // Else, if we got just an absolute path, set it if (strpos($location, '/') === 0) { $this->uri->setPath($location); // Else, assume we have a relative path } else { // Get the current path directory, removing any trailing slashes $path = $this->uri->getPath(); $path = rtrim(substr($path, 0, strrpos($path, '/')), "/"); $this->uri->setPath($path . '/' . $location); } } ++$this->redirectCounter; } else { // If we didn't get any location, stop redirecting break; } } while ($this->redirectCounter < $this->config['maxredirects']); return $response; }
/** * Get the response body as string * * This method returns the body of the HTTP response (the content), as it * should be in it's readable version - that is, after decoding it (if it * was decoded), deflating it (if it was gzip compressed), etc. * * If you want to get the raw body (as transfered on wire) use * $this->getRawBody() instead. * * @return string */ public function getBody() { if ($this->stream != null) { $this->readStream(); } return parent::getBody(); }
/** * Read response from server * * @return string */ public function read() { // First, read headers only $response = ''; $gotStatus = false; $stream = !empty($this->config['stream']); while (($line = @fgets($this->socket)) !== false) { $gotStatus = $gotStatus || strpos($line, 'HTTP') !== false; if ($gotStatus) { $response .= $line; if (rtrim($line) === '') { break; } } } $this->_checkSocketReadTimeout(); $statusCode = Sh_Zend_Http_Response::extractCode($response); // Handle 100 and 101 responses internally by restarting the read again if ($statusCode == 100 || $statusCode == 101) { return $this->read(); } // Check headers to see what kind of connection / transfer encoding we have $headers = Sh_Zend_Http_Response::extractHeaders($response); /** * Responses to HEAD requests and 204 or 304 responses are not expected * to have a body - stop reading here */ if ($statusCode == 304 || $statusCode == 204 || $this->method == Sh_Zend_Http_Client::HEAD) { // Close the connection if requested to do so by the server if (isset($headers['connection']) && $headers['connection'] == 'close') { $this->close(); } return $response; } // If we got a 'transfer-encoding: chunked' header if (isset($headers['transfer-encoding'])) { if (strtolower($headers['transfer-encoding']) == 'chunked') { do { $line = @fgets($this->socket); $this->_checkSocketReadTimeout(); $chunk = $line; // Figure out the next chunk size $chunksize = trim($line); if (!ctype_xdigit($chunksize)) { $this->close(); require_once sh404SEF_ADMIN_ABS_PATH . 'lib/Zend/Http/Client/Adapter/Exception.php'; throw new Sh_Zend_Http_Client_Adapter_Exception('Invalid chunk size "' . $chunksize . '" unable to read chunked body'); } // Convert the hexadecimal value to plain integer $chunksize = hexdec($chunksize); // Read next chunk $read_to = ftell($this->socket) + $chunksize; do { $current_pos = ftell($this->socket); if ($current_pos >= $read_to) { break; } if ($this->out_stream) { if (stream_copy_to_stream($this->socket, $this->out_stream, $read_to - $current_pos) == 0) { $this->_checkSocketReadTimeout(); break; } } else { $line = @fread($this->socket, $read_to - $current_pos); if ($line === false || strlen($line) === 0) { $this->_checkSocketReadTimeout(); break; } $chunk .= $line; } } while (!feof($this->socket)); $chunk .= @fgets($this->socket); $this->_checkSocketReadTimeout(); if (!$this->out_stream) { $response .= $chunk; } } while ($chunksize > 0); } else { $this->close(); require_once sh404SEF_ADMIN_ABS_PATH . 'lib/Zend/Http/Client/Adapter/Exception.php'; throw new Sh_Zend_Http_Client_Adapter_Exception('Cannot handle "' . $headers['transfer-encoding'] . '" transfer encoding'); } // We automatically decode chunked-messages when writing to a stream // this means we have to disallow the Sh_Zend_Http_Response to do it again if ($this->out_stream) { $response = str_ireplace("Transfer-Encoding: chunked\r\n", '', $response); } // Else, if we got the content-length header, read this number of bytes } elseif (isset($headers['content-length'])) { // If we got more than one Content-Length header (see ZF-9404) use // the last value sent if (is_array($headers['content-length'])) { $contentLength = $headers['content-length'][count($headers['content-length']) - 1]; } else { $contentLength = $headers['content-length']; } $current_pos = ftell($this->socket); $chunk = ''; for ($read_to = $current_pos + $contentLength; $read_to > $current_pos; $current_pos = ftell($this->socket)) { if ($this->out_stream) { if (@stream_copy_to_stream($this->socket, $this->out_stream, $read_to - $current_pos) == 0) { $this->_checkSocketReadTimeout(); break; } } else { $chunk = @fread($this->socket, $read_to - $current_pos); if ($chunk === false || strlen($chunk) === 0) { $this->_checkSocketReadTimeout(); break; } $response .= $chunk; } // Break if the connection ended prematurely if (feof($this->socket)) { break; } } // Fallback: just read the response until EOF } else { do { if ($this->out_stream) { if (@stream_copy_to_stream($this->socket, $this->out_stream) == 0) { $this->_checkSocketReadTimeout(); break; } } else { $buff = @fread($this->socket, 8192); if ($buff === false || strlen($buff) === 0) { $this->_checkSocketReadTimeout(); break; } else { $response .= $buff; } } } while (feof($this->socket) === false); $this->close(); } // Close the connection if requested to do so by the server if (isset($headers['connection']) && $headers['connection'] == 'close') { $this->close(); } return $response; }