/**
* Receive a response header from curl
*
* @param resource $curl Curl handle
* @param string $header Received header
*
* @return int
*/
public function receiveResponseHeader($curl, $header)
{
static $normalize = array("\r", "\n");
$length = strlen($header);
$header = str_replace($normalize, '', $header);
if (strpos($header, 'HTTP/') === 0) {
$startLine = explode(' ', $header, 3);
$code = $startLine[1];
$status = isset($startLine[2]) ? $startLine[2] : '';
// Only download the body of the response to the specified response
// body when a successful response is received.
if ($code >= 200 && $code < 300) {
$body = $this->request->getResponseBody();
} else {
$body = EntityBody::factory();
}
$response = new Response($code, null, $body);
$response->setStatus($code, $status);
$this->request->startResponse($response);
$this->request->dispatch('request.receive.status_line', array('request' => $this, 'line' => $header, 'status_code' => $code, 'reason_phrase' => $status));
} elseif ($pos = strpos($header, ':')) {
$this->request->getResponse()->addHeader(trim(substr($header, 0, $pos)), trim(substr($header, $pos + 1)));
}
return $length;
}
/**
* {@inheritdoc}
*/
protected function getDelay($retries, RequestInterface $request, Response $response = null, HttpException $e = null)
{
if ($response && $response->isClientError()) {
$parts = $this->exceptionParser->parse($request, $response);
return isset(self::$throttlingExceptions[$parts['code']]) ? true : null;
}
}
/**
* Parses additional exception information from the response headers
*
* @param RequestInterface $request Request that was issued
* @param Response $response The response from the request
* @param array $data The current set of exception data
*/
protected function parseHeaders(RequestInterface $request, Response $response, array &$data)
{
$data['message'] = $response->getStatusCode() . ' ' . $response->getReasonPhrase();
if ($requestId = $response->getHeader('x-amz-request-id')) {
$data['request_id'] = $requestId;
$data['message'] .= " (Request-ID: {$requestId})";
}
}
protected function getDelay($retries, RequestInterface $request, Response $response = null, HttpException $e = null)
{
if ($response) {
//Short circuit the rest of the checks if it was successful
if ($response->isSuccessful()) {
return false;
} else {
return isset($this->errorCodes[$response->getStatusCode()]) ? true : null;
}
}
}
/**
* Process a prefixed header array
*
* @param Response $response Response that contains the headers
* @param Parameter $param Parameter object
* @param array $value Value response array to modify
*/
protected function processPrefixedHeaders(Response $response, Parameter $param, &$value)
{
// Grab prefixed headers that should be placed into an array with the prefix stripped
if ($prefix = $param->getSentAs()) {
$container = $param->getName();
$len = strlen($prefix);
// Find all matching headers and place them into the containing element
foreach ($response->getHeaders()->toArray() as $key => $header) {
if (stripos($key, $prefix) === 0) {
// Account for multi-value headers
$value[$container][substr($key, $len)] = count($header) == 1 ? end($header) : $header;
}
}
}
}
/**
* {@inheritdoc}
*/
protected function doParse(array $data, Response $response)
{
// Merge in error data from the JSON body
if ($json = $data['parsed']) {
$data = array_replace($data, $json);
}
// Correct error type from services like Amazon Glacier
if (!empty($data['type'])) {
$data['type'] = strtolower($data['type']);
}
// Retrieve the error code from services like Amazon Elastic Transcoder
if ($code = (string) $response->getHeader('x-amzn-ErrorType')) {
$data['code'] = substr($code, 0, strpos($code, ':'));
}
return $data;
}
/**
* Get a mock response from a file
*
* @param string $path File to retrieve a mock response from
*
* @return Response
* @throws InvalidArgumentException if the file is not found
*/
public static function getMockFile($path)
{
if (!file_exists($path)) {
throw new InvalidArgumentException('Unable to open mock file: ' . $path);
}
return Response::fromMessage(file_get_contents($path));
}
/**
* {@inheritdoc}
*/
public function parse(RequestInterface $request, Response $response)
{
// Build array of default error data
$data = array('code' => null, 'message' => null, 'type' => $response->isClientError() ? 'client' : 'server', 'request_id' => (string) $response->getHeader('x-amzn-RequestId'), 'parsed' => null);
// Parse the json and normalize key casings
if (null !== ($json = json_decode($response->getBody(true), true))) {
$data['parsed'] = array_change_key_case($json);
}
// Do additional, protocol-specific parsing and return the result
$data = $this->doParse($data, $response);
// Remove "Fault" suffix from exception names
if (isset($data['code']) && strpos($data['code'], 'Fault')) {
$data['code'] = preg_replace('/^([a-zA-Z]+)Fault$/', '$1', $data['code']);
}
return $data;
}
protected function getDelay($retries, RequestInterface $request, Response $response = null, HttpException $e = null)
{
if ($response && $response->isClientError()) {
$parts = $this->exceptionParser->parse($request, $response);
if (!isset($this->retryable[$parts['code']]) || !$request->getClient()) {
return null;
}
/** @var $client AwsClientInterface */
$client = $request->getClient();
// Only retry if the credentials can be refreshed
if (!$client->getCredentials() instanceof AbstractRefreshableCredentials) {
return null;
}
// Resign the request using new credentials
$client->getSignature()->signRequest($request, $client->getCredentials()->setExpiration(-1));
// Retry immediately with no delay
return 0;
}
}
/**
* Factory method to create a new response exception based on the response code.
*
* @param RequestInterface $request Request
* @param Response $response Response received
*
* @return BadResponseException
*/
public static function factory(RequestInterface $request, Response $response)
{
if ($response->isClientError()) {
$label = 'Client error response';
$class = __NAMESPACE__ . '\\ClientErrorResponseException';
} elseif ($response->isServerError()) {
$label = 'Server error response';
$class = __NAMESPACE__ . '\\ServerErrorResponseException';
} else {
$label = 'Unsuccessful response';
$class = __CLASS__;
}
$message = $label . PHP_EOL . implode(PHP_EOL, array('[status code] ' . $response->getStatusCode(), '[reason phrase] ' . $response->getReasonPhrase(), '[url] ' . $request->getUrl()));
$e = new $class($message);
$e->setResponse($response);
$e->setRequest($request);
return $e;
}
/**
* Prepare the request for redirection and enforce the maximum number of allowed redirects per client
*
* @param RequestInterface $original Original request
* @param RequestInterface $request Request to prepare and validate
* @param Response $response The current response
*
* @return RequestInterface
*/
protected function prepareRedirection(RequestInterface $original, RequestInterface $request, Response $response)
{
$params = $original->getParams();
// This is a new redirect, so increment the redirect counter
$current = $params[self::REDIRECT_COUNT] + 1;
$params[self::REDIRECT_COUNT] = $current;
// Use a provided maximum value or default to a max redirect count of 5
$max = isset($params[self::MAX_REDIRECTS]) ? $params[self::MAX_REDIRECTS] : $this->defaultMaxRedirects;
// Throw an exception if the redirect count is exceeded
if ($current > $max) {
$this->throwTooManyRedirectsException($original, $max);
return false;
} else {
// Create a redirect request based on the redirect rules set on the request
return $this->createRedirectRequest($request, $response->getStatusCode(), trim($response->getLocation()), $original);
}
}
/**
* Handle a 304 response and ensure that it is still valid
*
* @param RequestInterface $request Request that was sent
* @param Response $validateResponse Response received
* @param Response $response Original cached response
*
* @return bool Returns true if valid, false if invalid
*/
protected function handle304Response(RequestInterface $request, Response $validateResponse, Response $response)
{
static $replaceHeaders = array('Date', 'Expires', 'Cache-Control', 'ETag', 'Last-Modified');
// Make sure that this response has the same ETag
if ($validateResponse->getEtag() != $response->getEtag()) {
return false;
}
// Replace cached headers with any of these headers from the
// origin server that might be more up to date
$modified = false;
foreach ($replaceHeaders as $name) {
if ($validateResponse->hasHeader($name)) {
$modified = true;
$response->setHeader($name, $validateResponse->getHeader($name));
}
}
// Store the updated response in cache
if ($modified && $this->canCache->canCacheResponse($response)) {
$this->storage->cache($request, $response);
}
return true;
}
/**
* Add the plugin's headers to a response
*
* @param RequestInterface $request Request
* @param Response $response Response to add headers to
*/
protected function addResponseHeaders(RequestInterface $request, Response $response)
{
$params = $request->getParams();
$response->setHeader('Via', sprintf('%s GuzzleCache/%s', $request->getProtocolVersion(), Version::VERSION));
$lookup = ($params['cache.lookup'] === true ? 'HIT' : 'MISS') . ' from GuzzleCache';
if ($header = $response->getHeader('X-Cache-Lookup')) {
// Don't add duplicates
$values = $header->toArray();
$values[] = $lookup;
$response->setHeader('X-Cache-Lookup', array_unique($values));
} else {
$response->setHeader('X-Cache-Lookup', $lookup);
}
if ($params['cache.hit'] === true) {
$xcache = 'HIT from GuzzleCache';
} elseif ($params['cache.hit'] == 'error') {
$xcache = 'HIT_ERROR from GuzzleCache';
} else {
$xcache = 'MISS from GuzzleCache';
}
if ($header = $response->getHeader('X-Cache')) {
// Don't add duplicates
$values = $header->toArray();
$values[] = $xcache;
$response->setHeader('X-Cache', array_unique($values));
} else {
$response->setHeader('X-Cache', $xcache);
}
if ($response->isFresh() === false) {
$response->addHeader('Warning', sprintf('110 GuzzleCache/%s "Response is stale"', Version::VERSION));
if ($params['cache.hit'] === 'error') {
$response->addHeader('Warning', sprintf('111 GuzzleCache/%s "Revalidation failed"', Version::VERSION));
}
}
}
protected function getDelay($retries, RequestInterface $request, Response $response = null, HttpException $e = null)
{
if ($response) {
return isset($this->errorCodes[$response->getReasonPhrase()]) ? true : null;
}
}
/**
* {@inheritdoc}
*/
protected function getDelay($retries, RequestInterface $request, Response $response = null, HttpException $e = null)
{
if ($response && $response->getStatusCode() == 400 && strpos($response->getBody(), self::ERR)) {
return true;
}
}
public function fetch(RequestInterface $request)
{
$key = $this->getCacheKey($request);
if (!($entries = $this->cache->fetch($key))) {
return null;
}
$match = null;
$headers = $this->persistHeaders($request);
$entries = unserialize($entries);
foreach ($entries as $index => $entry) {
if ($this->requestsMatch(isset($entry[1]['vary']) ? $entry[1]['vary'] : '', $headers, $entry[0])) {
$match = $entry;
break;
}
}
if (!$match) {
return null;
}
// Ensure that the response is not expired
$response = null;
if ($match[4] < time()) {
$response = -1;
} else {
$response = new Response($match[2], $match[1]);
if ($match[3]) {
if ($body = $this->cache->fetch($match[3])) {
$response->setBody($body);
} else {
// The response is not valid because the body was somehow deleted
$response = -1;
}
}
}
if ($response === -1) {
// Remove the entry from the metadata and update the cache
unset($entries[$index]);
if ($entries) {
$this->cache->save($key, serialize($entries));
} else {
$this->cache->delete($key);
}
return null;
}
return $response;
}
public function setResponse(Response $response, $queued = false)
{
$response->setEffectiveUrl((string) $this->url);
if ($queued) {
$ed = $this->getEventDispatcher();
$ed->addListener('request.before_send', $f = function ($e) use($response, &$f, $ed) {
$e['request']->setResponse($response);
$ed->removeListener('request.before_send', $f);
}, -9999);
} else {
$this->response = $response;
// If a specific response body is specified, then use it instead of the response's body
if ($this->responseBody && !$this->responseBody->getCustomData('default') && !$response->isRedirect()) {
$this->getResponseBody()->write((string) $this->response->getBody());
} else {
$this->responseBody = $this->response->getBody();
}
$this->setState(self::STATE_COMPLETE);
}
return $this;
}
public function visit(CommandInterface $command, Response $response, Parameter $param, &$value, $context = null)
{
$value[$param->getName()] = $response->getReasonPhrase();
}
/**
* Returns a formatted message
*
* @param RequestInterface $request Request that was sent
* @param Response $response Response that was received
* @param CurlHandle $handle Curl handle associated with the message
* @param array $customData Associative array of custom template data
*
* @return string
*/
public function format(RequestInterface $request, Response $response = null, CurlHandle $handle = null, array $customData = array())
{
$cache = $customData;
return preg_replace_callback('/{\\s*([A-Za-z_\\-\\.0-9]+)\\s*}/', function (array $matches) use($request, $response, $handle, &$cache) {
if (array_key_exists($matches[1], $cache)) {
return $cache[$matches[1]];
}
$result = '';
switch ($matches[1]) {
case 'request':
$result = (string) $request;
break;
case 'response':
$result = (string) $response;
break;
case 'req_body':
$result = $request instanceof EntityEnclosingRequestInterface ? (string) $request->getBody() : '';
break;
case 'res_body':
$result = $response ? $response->getBody(true) : '';
break;
case 'ts':
$result = gmdate('c');
break;
case 'method':
$result = $request->getMethod();
break;
case 'url':
$result = (string) $request->getUrl();
break;
case 'resource':
$result = $request->getResource();
break;
case 'protocol':
$result = 'HTTP';
break;
case 'version':
$result = $request->getProtocolVersion();
break;
case 'host':
$result = $request->getHost();
break;
case 'hostname':
$result = gethostname();
break;
case 'port':
$result = $request->getPort();
break;
case 'code':
$result = $response ? $response->getStatusCode() : '';
break;
case 'phrase':
$result = $response ? $response->getReasonPhrase() : '';
break;
case 'connect_time':
$result = $handle && $handle->getInfo(CURLINFO_CONNECT_TIME) ? $handle->getInfo(CURLINFO_CONNECT_TIME) : ($response ? $response->getInfo('connect_time') : '');
break;
case 'total_time':
$result = $handle && $handle->getInfo(CURLINFO_TOTAL_TIME) ? $handle->getInfo(CURLINFO_TOTAL_TIME) : ($response ? $response->getInfo('total_time') : '');
break;
case 'curl_error':
$result = $handle ? $handle->getError() : '';
break;
case 'curl_code':
$result = $handle ? $handle->getErrorNo() : '';
break;
case 'curl_stderr':
$result = $handle ? $handle->getStderr() : '';
break;
default:
if (strpos($matches[1], 'req_header_') === 0) {
$result = $request->getHeader(substr($matches[1], 11));
} elseif ($response && strpos($matches[1], 'res_header_') === 0) {
$result = $response->getHeader(substr($matches[1], 11));
}
}
$cache[$matches[1]] = $result;
return $result;
}, $this->template);
}
public function canCacheResponse(Response $response)
{
return $response->isSuccessful() && $response->canCache();
}
public function visit(CommandInterface $command, Response $response, Parameter $param, &$value, $context = null)
{
$value[$param->getName()] = $param->filter($response->getBody());
}
public function addCookiesFromResponse(Response $response, RequestInterface $request = null)
{
if ($cookieHeader = $response->getHeader('Set-Cookie')) {
$parser = ParserRegistry::getInstance()->getParser('cookie');
foreach ($cookieHeader as $cookie) {
if ($parsed = $request ? $parser->parseCookie($cookie, $request->getHost(), $request->getPath()) : $parser->parseCookie($cookie)) {
// Break up cookie v2 into multiple cookies
foreach ($parsed['cookies'] as $key => $value) {
$row = $parsed;
$row['name'] = $key;
$row['value'] = $value;
unset($row['cookies']);
$this->add(new Cookie($row));
}
}
}
}
}
