/**
* Preform handshaking with HTTPS proxy using CONNECT method
*
* @param string $host
* @param integer $port
* @param string $http_ver
* @param array $headers
*/
protected function connectHandshake($host, $port = 443, $http_ver = '1.1', array &$headers = array())
{
$request = "CONNECT {$host}:{$port} HTTP/{$http_ver}\r\n" . "Host: " . $this->config['proxy_host'] . "\r\n";
// Add the user-agent header
if (isset($this->config['useragent'])) {
$request .= "User-agent: " . $this->config['useragent'] . "\r\n";
}
// If the proxy-authorization header is set, send it to proxy but remove
// it from headers sent to target host
if (isset($headers['proxy-authorization'])) {
$request .= "Proxy-authorization: " . $headers['proxy-authorization'] . "\r\n";
unset($headers['proxy-authorization']);
}
$request .= "\r\n";
// Send the request
if (!@fwrite($this->socket, $request)) {
require_once 'Microsoft/Http/Client/Adapter/Exception.php';
throw new Microsoft_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 (Microsoft_Http_Response::extractCode($response) != 200) {
require_once 'Microsoft/Http/Client/Adapter/Exception.php';
throw new Microsoft_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 'Microsoft/Http/Client/Adapter/Exception.php';
throw new Microsoft_Http_Client_Adapter_Exception("Unable to connect to" . " HTTPS server through proxy: could not negotiate secure connection.");
}
}
/**
* Send the HTTP request and return an HTTP response object
*
* @param string $method
* @return Microsoft_Http_Response
* @throws Microsoft_Http_Client_Exception
*/
public function request($method = null)
{
if (!$this->uri instanceof Microsoft_Uri_Http) {
/** @see Microsoft_Http_Client_Exception */
require_once 'Microsoft/Http/Client/Exception.php';
throw new Microsoft_Http_Client_Exception('No valid URI has been passed to the client');
}
if ($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 Microsoft_Http_Client_Adapter_Stream) {
/** @see Microsoft_Http_Client_Exception */
require_once 'Microsoft/Http/Client/Exception.php';
throw new Microsoft_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 Microsoft_Http_Client_Adapter_Stream) {
$stream = $this->_openTempStream();
$this->adapter->setOutputStream($stream);
} else {
/** @see Microsoft_Http_Client_Exception */
require_once 'Microsoft/Http/Client/Exception.php';
throw new Microsoft_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 Microsoft_Http_Client_Exception */
require_once 'Microsoft/Http/Client/Exception.php';
throw new Microsoft_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);
$response = Microsoft_Http_Response_Stream::fromStream($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 {
$response = Microsoft_Http_Response::fromString($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();
$this->setMethod(self::GET);
}
// If we got a well formed absolute URI
if (Microsoft_Uri_Http::check($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;
}
/**
* 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();
$statusCode = Microsoft_Http_Response::extractCode($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
$headers = Microsoft_Http_Response::extractHeaders($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 || $this->method == Microsoft_Http_Client::HEAD) {
// Close the connection if requested to do so by the server
if (isset($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 'Microsoft/Http/Client/Adapter/Exception.php';
throw new Microsoft_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();
throw new Microsoft_Http_Client_Adapter_Exception('Cannot handle "' . $headers['transfer-encoding'] . '" transfer encoding');
}
// We automatically decode chunked-messages when writing to a stream
// this means we have to disallow the Microsoft_Http_Response to do it again
if ($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'])) {
$current_pos = ftell($this->socket);
$chunk = '';
for ($read_to = $current_pos + $headers['content-length']; $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;
}
/**
* Retrieve entities from table
*
* @param string $tableName|Microsoft_WindowsAzure_Storage_TableEntityQuery Table name -or- Microsoft_WindowsAzure_Storage_TableEntityQuery instance
* @param string $filter Filter condition (not applied when $tableName is a Microsoft_WindowsAzure_Storage_TableEntityQuery instance)
* @param string $entityClass Entity class name
* @param string $nextPartitionKey Next partition key, used for listing entities when total amount of entities is > 1000.
* @param string $nextRowKey Next row key, used for listing entities when total amount of entities is > 1000.
* @return array Array of Microsoft_WindowsAzure_Storage_TableEntity
* @throws Microsoft_WindowsAzure_Exception
*/
public function retrieveEntities($tableName = '', $filter = '', $entityClass = 'Microsoft_WindowsAzure_Storage_DynamicTableEntity', $nextPartitionKey = null, $nextRowKey = null)
{
if ($tableName === '') {
throw new Microsoft_WindowsAzure_Exception('Table name is not specified.');
}
if ($entityClass === '') {
throw new Microsoft_WindowsAzure_Exception('Entity class is not specified.');
}
// Convenience...
if (class_exists($filter)) {
$entityClass = $filter;
$filter = '';
}
// Query string
$queryString = '';
// Determine query
if (is_string($tableName)) {
// Option 1: $tableName is a string
// Append parentheses
if (strpos($tableName, '()') === false) {
$tableName .= '()';
}
// Build query
$query = array();
// Filter?
if ($filter !== '') {
$query[] = '$filter=' . Microsoft_WindowsAzure_Storage_TableEntityQuery::encodeQuery($filter);
}
// Build queryString
if (count($query) > 0) {
$queryString = '?' . implode('&', $query);
}
} else {
if (get_class($tableName) == 'Microsoft_WindowsAzure_Storage_TableEntityQuery') {
// Option 2: $tableName is a Microsoft_WindowsAzure_Storage_TableEntityQuery instance
// Build queryString
$queryString = $tableName->assembleQueryString(true);
// Change $tableName
$tableName = $tableName->assembleFrom(true);
} else {
throw new Microsoft_WindowsAzure_Exception('Invalid argument: $tableName');
}
}
// Add continuation querystring parameters?
if (!is_null($nextPartitionKey) && !is_null($nextRowKey)) {
if ($queryString !== '') {
$queryString .= '&';
} else {
$queryString .= '?';
}
$queryString .= 'NextPartitionKey=' . rawurlencode($nextPartitionKey) . '&NextRowKey=' . rawurlencode($nextRowKey);
}
// Perform request
$response = null;
if ($this->isInBatch() && $this->getCurrentBatch()->getOperationCount() == 0) {
$this->getCurrentBatch()->enlistOperation($tableName, $queryString, Microsoft_Http_Client::GET, array(), true, null);
$response = $this->getCurrentBatch()->commit();
// Get inner response (multipart)
$innerResponse = $response->getBody();
$innerResponse = substr($innerResponse, strpos($innerResponse, 'HTTP/1.1 200 OK'));
$innerResponse = substr($innerResponse, 0, strpos($innerResponse, '--batchresponse'));
$response = Microsoft_Http_Response::fromString($innerResponse);
} else {
$response = $this->_performRequest($tableName, $queryString, Microsoft_Http_Client::GET, array(), true, null);
}
if ($response->isSuccessful()) {
// Parse result
$result = $this->_parseResponse($response);
if (!$result) {
return array();
}
$entries = null;
if ($result->entry) {
if (count($result->entry) > 1) {
$entries = $result->entry;
} else {
$entries = array($result->entry);
}
} else {
// This one is tricky... If we have properties defined, we have an entity.
$properties = $result->xpath('//m:properties');
if ($properties) {
$entries = array($result);
} else {
return array();
}
}
// Create return value
$returnValue = array();
foreach ($entries as $entry) {
// Parse properties
$properties = $entry->xpath('.//m:properties');
$properties = $properties[0]->children('http://schemas.microsoft.com/ado/2007/08/dataservices');
// Create entity
$entity = new $entityClass('', '');
$entity->setAzureValues((array) $properties, $this->_throwExceptionOnMissingData);
// If we have a Microsoft_WindowsAzure_Storage_DynamicTableEntity, make sure all property types are set
if ($entity instanceof Microsoft_WindowsAzure_Storage_DynamicTableEntity) {
foreach ($properties as $key => $value) {
$attributes = $value->attributes('http://schemas.microsoft.com/ado/2007/08/dataservices/metadata');
$type = (string) $attributes['type'];
if ($type !== '') {
$entity->setAzureProperty($key, (string) $value, $type);
}
}
}
// Update etag
$etag = $entry->attributes('http://schemas.microsoft.com/ado/2007/08/dataservices/metadata');
$etag = (string) $etag['etag'];
$entity->setEtag($etag);
// Add to result
$returnValue[] = $entity;
}
// More entities?
if (!is_null($response->getHeader('x-ms-continuation-NextPartitionKey')) && !is_null($response->getHeader('x-ms-continuation-NextRowKey'))) {
if (strpos($queryString, '$top') === false) {
$returnValue = array_merge($returnValue, $this->retrieveEntities($tableName, $filter, $entityClass, $response->getHeader('x-ms-continuation-NextPartitionKey'), $response->getHeader('x-ms-continuation-NextRowKey')));
}
}
// Return
return $returnValue;
} else {
throw new Microsoft_WindowsAzure_Exception($this->_getErrorMessage($response, 'Resource could not be accessed.'));
}
}
/**
* This function will extract the changesets from raw batch response and generate
* a list of Microsoft_Http_Response objects.
*
* @param string $rawHttpBatchResponse
* @param string changesetBoundary
* @return array
*/
protected static function ExtractHttpResponses($httpBatchResponse, $changesetBoundary)
{
$httpResponses = array();
$parts = explode("--" . $changesetBoundary, $httpBatchResponse);
$count = count($parts);
if ($count < 2) {
return $httpResponses;
}
unset($parts[0]);
unset($parts[$count - 1]);
foreach ($parts as $changeSet) {
$subParts = preg_split('|(?:\\r?\\n){2}|m', $changeSet, 2);
$httpResponses[] = Microsoft_Http_Response::fromString($subParts[1]);
}
return $httpResponses;
}
/**
* To extract the body from a response string.
*
* @param string $response_str
* @return string
*/
public static function extractBody($rawResponseString)
{
$responseString = self::ExtractCorrectResponse($rawResponseString);
return parent::extractBody($responseString);
}
/**
* Perform request
*
* @param $httpVerb Http verb to use in the request
* @param $url Url to request
* @param $variables Array of key-value pairs to use in the request
* @param $headers Array of key-value pairs to use as additional headers
* @param $rawBody Raw body to send to server
* @return Microsoft_Http_Response
*/
public function request($httpVerb, $url, $variables = array(), $headers = array(), $rawBody = null)
{
// Create a new cURL instance
$curlHandle = curl_init();
curl_setopt($curlHandle, CURLOPT_USERAGENT, $this->_userAgent);
curl_setopt($curlHandle, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curlHandle, CURLOPT_TIMEOUT, 120);
// Set URL
curl_setopt($curlHandle, CURLOPT_URL, $url);
// Set HTTP parameters (version and request method)
curl_setopt($curlHandle, CURL_HTTP_VERSION_1_1, true);
switch ($httpVerb) {
case Microsoft_Http_Transport::VERB_GET:
curl_setopt($curlHandle, CURLOPT_HTTPGET, true);
break;
case Microsoft_Http_Transport::VERB_POST:
curl_setopt($curlHandle, CURLOPT_POST, true);
break;
/*case Microsoft_Http_Transport::VERB_PUT:
curl_setopt($curlHandle, CURLOPT_PUT, true);
break;*/
/*case Microsoft_Http_Transport::VERB_PUT:
curl_setopt($curlHandle, CURLOPT_PUT, true);
break;*/
case Microsoft_Http_Transport::VERB_HEAD:
// http://stackoverflow.com/questions/770179/php-curl-head-request-takes-a-long-time-on-some-sites
curl_setopt($curlHandle, CURLOPT_CUSTOMREQUEST, 'HEAD');
curl_setopt($curlHandle, CURLOPT_NOBODY, true);
break;
default:
curl_setopt($curlHandle, CURLOPT_CUSTOMREQUEST, $httpVerb);
break;
}
// Clear Content-Length header
$headers["Content-Length"] = 0;
// Ensure headers are returned
curl_setopt($curlHandle, CURLOPT_HEADER, true);
// Set proxy?
if ($this->_useProxy) {
curl_setopt($curlHandle, CURLOPT_PROXY, $this->_proxyUrl);
curl_setopt($curlHandle, CURLOPT_PROXYPORT, $this->_proxyPort);
curl_setopt($curlHandle, CURLOPT_PROXYUSERPWD, $this->_proxyCredentials);
}
// Ensure response is returned
curl_setopt($curlHandle, CURLOPT_RETURNTRANSFER, true);
// Set post fields / raw data
// http://www.php.net/manual/en/function.curl-setopt.php#81161
if (!is_null($rawBody) || !is_null($variables) && count($variables) > 0) {
if (!is_null($rawBody)) {
unset($headers["Content-Length"]);
$headers["Content-Length"] = strlen($rawBody);
}
curl_setopt($curlHandle, CURLOPT_POSTFIELDS, is_null($rawBody) ? $variables : $rawBody);
}
// Set Content-Type header if required
if (!isset($headers["Content-Type"])) {
$headers["Content-Type"] = '';
}
// Disable Expect: 100-Continue
// http://be2.php.net/manual/en/function.curl-setopt.php#82418
$headers["Expect"] = '';
// Add additional headers to cURL instance
$curlHeaders = array();
foreach ($headers as $key => $value) {
$curlHeaders[] = $key . ': ' . $value;
}
curl_setopt($curlHandle, CURLOPT_HTTPHEADER, $curlHeaders);
// DEBUG: curl_setopt($curlHandle, CURLINFO_HEADER_OUT, true);
// Execute request
$rawResponse = curl_exec($curlHandle);
$response = null;
if ($rawResponse) {
$response = Microsoft_Http_Response::fromString($rawResponse);
// DEBUG: var_dump($url);
// DEBUG: var_dump(curl_getinfo($curlHandle,CURLINFO_HEADER_OUT));
// DEBUG: var_dump($rawResponse);
} else {
throw new Microsoft_Http_Transport_Exception('cURL error occured during request for ' . $url . ': ' . curl_errno($curlHandle) . ' - ' . curl_error($curlHandle));
}
curl_close($curlHandle);
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();
}
