/**
* Send the HTTP request and return an HTTP response object
*
* @param string $method
* @return IfwPsn_Vendor_Zend_Http_Response
* @throws IfwPsn_Vendor_Zend_Http_Client_Exception
*/
public function request($method = null)
{
if (!$this->uri instanceof IfwPsn_Vendor_Zend_Uri_Http) {
/** @see IfwPsn_Vendor_Zend_Http_Client_Exception */
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Http/Client/Exception.php';
throw new IfwPsn_Vendor_Zend_Http_Client_Exception('No valid URI has been passed to the client');
}
if ($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, '&');
if ($this->config['rfc3986_strict']) {
$query = str_replace('+', '%20', $query);
}
// @see ZF-11671 to unmask for some services to foo=val1&foo=val2
if ($this->getUnmaskStatus()) {
if ($this->_queryBracketsEscaped) {
$query = preg_replace('/%5B(?:[0-9]|[1-9][0-9]+)%5D=/', '=', $query);
} else {
$query = preg_replace('/\\[(?:[0-9]|[1-9][0-9]+)\\]=/', '=', $query);
}
}
$uri->setQuery($query);
}
$body = $this->_prepareBody();
$headers = $this->_prepareHeaders();
// check that adapter supports streaming before using it
if (is_resource($body) && !$this->adapter instanceof IfwPsn_Vendor_Zend_Http_Client_Adapter_Stream) {
/** @see IfwPsn_Vendor_Zend_Http_Client_Exception */
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Http/Client/Exception.php';
throw new IfwPsn_Vendor_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 IfwPsn_Vendor_Zend_Http_Client_Adapter_Stream) {
$stream = $this->_openTempStream();
$this->adapter->setOutputStream($stream);
} else {
/** @see IfwPsn_Vendor_Zend_Http_Client_Exception */
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Http/Client/Exception.php';
throw new IfwPsn_Vendor_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 IfwPsn_Vendor_Zend_Http_Client_Exception */
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Http/Client/Exception.php';
throw new IfwPsn_Vendor_Zend_Http_Client_Exception('Unable to read response, or response is empty');
}
if ($this->config['output_stream']) {
$streamMetaData = stream_get_meta_data($stream);
if ($streamMetaData['seekable']) {
rewind($stream);
}
// cleanup the adapter
$this->adapter->setOutputStream(null);
$response = IfwPsn_Vendor_Zend_Http_Response_Stream::fromStream($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 {
$response = IfwPsn_Vendor_Zend_Http_Response::fromString($response);
}
if ($this->config['storeresponse']) {
$this->last_response = $response;
}
// Load cookies into cookie jar
if (isset($this->cookiejar)) {
$this->cookiejar->addCookiesFromResponse($response, $uri, $this->config['encodecookies']);
}
// If we got redirected, look for the Location header
if ($response->isRedirect() && ($location = $response->getHeader('location'))) {
// Avoid problems with buggy servers that add whitespace at the
// end of some headers (See ZF-11283)
$location = trim($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();
$this->setMethod(self::GET);
}
// If we got a well formed absolute URI
if (($scheme = substr($location, 0, 6)) && ($scheme == 'http:/' || $scheme == 'https:')) {
$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 = '';
$gotStatus = false;
while (($line = @fgets($this->socket)) !== false) {
$gotStatus = $gotStatus || strpos($line, 'HTTP') !== false;
if ($gotStatus) {
$response .= $line;
if (rtrim($line) === '') {
break;
}
}
}
$this->_checkSocketReadTimeout();
$statusCode = IfwPsn_Vendor_Zend_Http_Response::extractCode($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
$headers = IfwPsn_Vendor_Zend_Http_Response::extractHeaders($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 || $this->method == IfwPsn_Vendor_Zend_Http_Client::HEAD) {
// Close the connection if requested to do so by the server
if (isset($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 IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Http/Client/Adapter/Exception.php';
throw new IfwPsn_Vendor_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 IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Http/Client/Adapter/Exception.php';
throw new IfwPsn_Vendor_Zend_Http_Client_Adapter_Exception('Cannot handle "' . $headers['transfer-encoding'] . '" transfer encoding');
}
// We automatically decode chunked-messages when writing to a stream
// this means we have to disallow the IfwPsn_Vendor_Zend_Http_Response to do it again
if ($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;
}
/**
* Preform handshaking with HTTPS proxy using CONNECT method
*
* @param string $host
* @param integer $port
* @param string $http_ver
* @param array $headers
* @return void
* @throws IfwPsn_Vendor_Zend_Http_Client_Adapter_Exception
*/
protected function connectHandshake($host, $port = 443, $http_ver = '1.1', array &$headers = array())
{
$request = "CONNECT {$host}:{$port} HTTP/{$http_ver}\r\n" . "Host: " . $this->config['proxy_host'] . "\r\n";
// Process provided headers, including important ones to CONNECT request
foreach ($headers as $k => $v) {
switch (strtolower(substr($v, 0, strpos($v, ':')))) {
case 'proxy-authorization':
// break intentionally omitted
// break intentionally omitted
case 'user-agent':
$request .= $v . "\r\n";
break;
default:
break;
}
}
$request .= "\r\n";
// @see ZF-3189
$this->connectHandshakeRequest = $request;
// Send the request
if (!@fwrite($this->socket, $request)) {
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Http/Client/Adapter/Exception.php';
throw new IfwPsn_Vendor_Zend_Http_Client_Adapter_Exception('Error writing request to proxy server');
}
// Read response headers only
$response = '';
$gotStatus = false;
while ($line = @fgets($this->socket)) {
$gotStatus = $gotStatus || strpos($line, 'HTTP') !== false;
if ($gotStatus) {
$response .= $line;
if (!chop($line)) {
break;
}
}
}
// Check that the response from the proxy is 200
if (IfwPsn_Vendor_Zend_Http_Response::extractCode($response) != 200) {
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Http/Client/Adapter/Exception.php';
throw new IfwPsn_Vendor_Zend_Http_Client_Adapter_Exception('Unable to connect to HTTPS proxy. Server response: ' . $response);
}
// If all is good, switch socket to secure mode. We have to fall back
// through the different modes
$modes = array(STREAM_CRYPTO_METHOD_TLS_CLIENT, STREAM_CRYPTO_METHOD_SSLv3_CLIENT, STREAM_CRYPTO_METHOD_SSLv23_CLIENT, STREAM_CRYPTO_METHOD_SSLv2_CLIENT);
$success = false;
foreach ($modes as $mode) {
$success = stream_socket_enable_crypto($this->socket, true, $mode);
if ($success) {
break;
}
}
if (!$success) {
require_once IFW_PSN_LIB_ROOT . 'IfwPsn/Vendor/Zend/Http/Client/Adapter/Exception.php';
throw new IfwPsn_Vendor_Zend_Http_Client_Adapter_Exception('Unable to connect to HTTPS server through proxy: could not ' . 'negotiate secure connection.');
}
}
