/** * Read response from server * * @return string */ public function read() { // First, read headers only $response = ''; $gotStatus = false; while ($line = @fgets($this->socket)) { $gotStatus = $gotStatus || strpos($line, 'HTTP') !== false; if ($gotStatus) { $response .= $line; if (!chop($line)) { break; } } } // Handle 100 and 101 responses internally by restarting the read again if (Zend_Http_Response::extractCode($response) == 100 || Zend_Http_Response::extractCode($response) == 101) { return $this->read(); } // If this was a HEAD request, return after reading the header (no need to read body) if ($this->method == Zend_Http_Client::HEAD) { return $response; } // Check headers to see what kind of connection / transfer encoding we have $headers = Zend_Http_Response::extractHeaders($response); // if the connection is set to close, just read until socket closes if (isset($headers['connection']) && $headers['connection'] == 'close') { while ($buff = @fread($this->socket, 8192)) { $response .= $buff; } $this->close(); // Else, if we got a transfer-encoding header (chunked body) } elseif (isset($headers['transfer-encoding'])) { if ($headers['transfer-encoding'] == 'chunked') { do { $chunk = ''; $line = @fgets($this->socket); $chunk .= $line; $hexchunksize = ltrim(chop($line), '0'); $hexchunksize = strlen($hexchunksize) ? strtolower($hexchunksize) : 0; $chunksize = hexdec(chop($line)); if (dechex($chunksize) != $hexchunksize) { @fclose($this->socket); require_once 'Zend/Http/Client/Adapter/Exception.php'; throw new Zend_Http_Client_Adapter_Exception('Invalid chunk size "' . $hexchunksize . '" unable to read chunked body'); } $left_to_read = $chunksize; while ($left_to_read > 0) { $line = @fread($this->socket, $left_to_read); $chunk .= $line; $left_to_read -= strlen($line); } $chunk .= @fgets($this->socket); $response .= $chunk; } while ($chunksize > 0); } else { throw new Zend_Http_Client_Adapter_Exception('Cannot handle "' . $headers['transfer-encoding'] . '" transfer encoding'); } // Else, if we got the content-length header, read this number of bytes } elseif (isset($headers['content-length'])) { $left_to_read = $headers['content-length']; $chunk = ''; while ($left_to_read > 0) { $chunk = @fread($this->socket, $left_to_read); $left_to_read -= strlen($chunk); $response .= $chunk; } // Fallback: just read the response (should not happen) } else { while ($buff = @fread($this->socket, 8192)) { $response .= $buff; } $this->close(); } return $response; }
/** * Read response from server * * @return string */ public function read() { // First, read headers only $response = ''; $gotStatus = false; while (($line = @fgets($this->socket)) !== false) { $gotStatus = $gotStatus || strpos($line, 'HTTP') !== false; if ($gotStatus) { $response .= $line; if (rtrim($line) === '') { break; } } } $this->_checkSocketReadTimeout(); $statusCode = Zend_Http_Response::extractCode($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 $headers = Zend_Http_Response::extractHeaders($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 || $this->method == Zend_Http_Client::HEAD) { // Close the connection if requested to do so by the server if (isset($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 'Zend/Http/Client/Adapter/Exception.php'; throw new 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; } $line = @fread($this->socket, $read_to - $current_pos); if ($line === false || strlen($line) === 0) { $this->_checkSocketReadTimeout(); break; } else { $chunk .= $line; } } while (!feof($this->socket)); $chunk .= @fgets($this->socket); $this->_checkSocketReadTimeout(); $response .= $chunk; } while ($chunksize > 0); } else { $this->close(); throw new Zend_Http_Client_Adapter_Exception('Cannot handle "' . $headers['transfer-encoding'] . '" transfer encoding'); } // Else, if we got the content-length header, read this number of bytes } elseif (isset($headers['content-length'])) { $current_pos = ftell($this->socket); $chunk = ''; for ($read_to = $current_pos + $headers['content-length']; $read_to > $current_pos; $current_pos = ftell($this->socket)) { $chunk = @fread($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 { $buff = @fread($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; }
public function testExtractorsOnInvalidString() { // Try with an empty string $response_str = ''; $this->assertTrue(Zend_Http_Response::extractCode($response_str) === false); $this->assertTrue(Zend_Http_Response::extractMessage($response_str) === false); $this->assertTrue(Zend_Http_Response::extractVersion($response_str) === false); $this->assertTrue(Zend_Http_Response::extractBody($response_str) === ''); $this->assertTrue(Zend_Http_Response::extractHeaders($response_str) === array()); }
/** * Read response from server * * @return string */ public function read() { // First, read headers only $response = ''; while ($line = fgets($this->socket)) { $response .= $line; if (!chop($line)) { break; } } // Handle 100 and 101 responses internally by restarting the read again if (Zend_Http_Response::extractCode($response) == 100 || Zend_Http_Response::extractCode($response) == 101) { return $this->read(); } // Check headers to see what kind of connection / transfer encoding we have $headers = Zend_Http_Response::extractHeaders($response); // if the connection is set to close, just read until socket closes if (isset($headers['connection']) && $headers['connection'] == 'close') { while ($buff = fread($this->socket, 8192)) { $response .= $buff; } $this->close(); // Else, if we got a transfer-encoding header (chunked body) } elseif (isset($headers['transfer-encoding'])) { if ($headers['transfer-encoding'] == 'chunked') { do { $chunk = ''; $line = fgets($this->socket); $chunk .= $line; $hexchunksize = chop($line); $chunksize = hexdec(chop($line)); if (dechex($chunksize) != $hexchunksize) { fclose($this->socket); throw Zend::exception('Zend_Http_Client_Adapter_Exception', 'Invalid chunk size "' . $hexchunksize . '" unable to read chunked body'); } $left_to_read = $chunksize; while ($left_to_read > 0) { $chunk .= fread($this->socket, $left_to_read); $left_to_read = $chunksize - strlen($chunk); } $chunk .= fgets($this->socket); $response .= $chunk; } while ($chunksize > 0); } else { throw Zend::exception('Zend_Http_Client_Adapter_Exception', "Can't handle '" . $headers['transfer-encoding'] . "' transfer encoding"); } // Else, if we got the content-length header, read this number of bytes } elseif (isset($headers['content-length'])) { $left_to_read = $headers['content-length']; $chunk = ''; while ($left_to_read > 0) { $chunk = fread($this->socket, $left_to_read); $left_to_read -= strlen($chunk); $response .= $chunk; } // Fallback: just read the response (should not happen) } else { while ($buff = fread($this->socket, 8192)) { $response .= $buff; } $this->close(); } return $response; }
/** * Read response from server * * @return string */ public function read() { // First, read headers only $response = ''; $gotStatus = false; while (($line = @fgets($this->socket)) !== false) { $gotStatus = $gotStatus || strpos($line, 'HTTP') !== false; if ($gotStatus) { $response .= $line; if (rtrim($line) === '') { break; } } } $statusCode = Zend_Http_Response::extractCode($response); // Handle 100 and 101 responses internally by restarting the read again if ($statusCode == 100 || $statusCode == 101) { return $this->read(); } /** * Responses to HEAD requests and 204 or 304 responses are not expected * to have a body - stop reading here */ if ($statusCode == 304 || $statusCode == 204 || $this->method == Zend_Http_Client::HEAD) { return $response; } // Check headers to see what kind of connection / transfer encoding we have $headers = Zend_Http_Response::extractHeaders($response); // If we got a 'transfer-encoding: chunked' header if (isset($headers['transfer-encoding'])) { if ($headers['transfer-encoding'] == 'chunked') { do { $chunk = ''; $line = @fgets($this->socket); $chunk .= $line; $hexchunksize = ltrim(chop($line), '0'); $hexchunksize = strlen($hexchunksize) ? strtolower($hexchunksize) : 0; $chunksize = hexdec(chop($line)); if (dechex($chunksize) != $hexchunksize) { @fclose($this->socket); require_once 'Zend/Http/Client/Adapter/Exception.php'; throw new Zend_Http_Client_Adapter_Exception('Invalid chunk size "' . $hexchunksize . '" unable to read chunked body'); } $left_to_read = $chunksize; while ($left_to_read > 0) { $line = @fread($this->socket, $left_to_read); $chunk .= $line; $left_to_read -= strlen($line); // Break if the connection ended prematurely if (feof($this->socket)) { break; } } $chunk .= @fgets($this->socket); $response .= $chunk; } while ($chunksize > 0); } else { throw new Zend_Http_Client_Adapter_Exception('Cannot handle "' . $headers['transfer-encoding'] . '" transfer encoding'); } // Else, if we got the content-length header, read this number of bytes } elseif (isset($headers['content-length'])) { $left_to_read = $headers['content-length']; $chunk = ''; while ($left_to_read > 0) { $chunk = @fread($this->socket, $left_to_read); $left_to_read -= strlen($chunk); $response .= $chunk; // Break if the connection ended prematurely if (feof($this->socket)) { break; } } // Fallback: just read the response until EOF } else { while (($buff = @fread($this->socket, 8192)) !== false) { $response .= $buff; if (feof($this->socket)) { break; } } $this->close(); } // Close the connection if requested to do so by the server if (isset($headers['connection']) && $headers['connection'] == 'close') { $this->close(); } return $response; }
/** * @group ZF2015-04 * @dataProvider invalidResponseHeaders */ public function testExtractHeadersRaisesExceptionWhenDetectingCRLFInjection($message) { $this->setExpectedException('Zend_Http_Exception', 'Invalid'); Zend_Http_Response::extractHeaders($message); }
/** * 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(); $statusCode = Zend_Http_Response::extractCode($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 $headers = Zend_Http_Response::extractHeaders($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 || $this->method == Zend_Http_Client::HEAD) { // Close the connection if requested to do so by the server if (isset($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 get_template_directory() . '/includes/instagram-php-api/Zend/Http/Client/Adapter/Exception.php'; throw new 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 get_template_directory() . '/includes/instagram-php-api/Zend/Http/Client/Adapter/Exception.php'; throw new Zend_Http_Client_Adapter_Exception('Cannot handle "' . $headers['transfer-encoding'] . '" transfer encoding'); } // We automatically decode chunked-messages when writing to a stream // this means we have to disallow the Zend_Http_Response to do it again if ($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; }