/**
* Call a remote REST web service URI and return the Zend_Http_Response object
*
* @param string $path The path to append to the URI
* @throws Zend_Service_Exception
* @return void
*/
private final function _prepareRest($path, $query)
{
// Get the URI object and configure it
if (!$this->_uri instanceof Zend_Uri) {
throw new Zend_Service_Exception('URI object must be set before performing call');
}
// @todo this needs to be revisited
if ($path[0] != '/' && $this->_uri[strlen($this->_uri) - 1] != '/') {
$path = '/' . $path;
}
$this->_uri->setPath($path);
if (!is_null($query) && is_string($query)) {
$this->_uri->setQueryString($query);
} elseif (is_array($query)) {
$this->_uri->setQueryArray($query);
}
/**
* Get the HTTP client and configure it for the endpoint URI. Do this each time
* because the Zend_Http_Client instance is shared among all Zend_Service_Abstract subclasses.
*/
self::getHttpClient()->setUri($this->_uri);
}
/**
* Send the HTTP request and return an HTTP response object
*
* @param string $method
* @return Zend_Http_Response
*/
public function request($method = null)
{
if (!$this->uri instanceof Zend_Uri_Http) {
throw new Zend_Http_Client_Exception('No valid URI has been passed to the client');
}
if ($method) {
$this->setMethod($method);
}
$this->redirectCounter = 0;
$response = null;
// Make sure the adapter is loaded
if ($this->adapter == null) {
$this->loadAdapter($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->prepare_body();
$headers = $this->prepare_headers();
// Open the connection, send the request and read the response
$this->adapter->connect($uri->getHost(), $uri->getPort(), $uri->getScheme() == 'https' ? true : false);
$this->last_request = $this->adapter->write($this->method, $uri, $this->config['httpversion'], $headers, $body);
$response = $this->adapter->read();
if (!$response) {
throw new Zend_Http_Client_Exception('Unable to read response, or response is empty');
}
$response = Zend_Http_Response::fromString($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();
$this->setMethod(self::GET);
}
// If we got a well formed absolute URI
if (Zend_Uri_Http::check($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 = '';
}
$this->uri->setQueryString($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
$path = rtrim(dirname($this->uri->getPath()), "/");
$this->uri->setPath($path . '/' . $location);
}
}
++$this->redirectCounter;
} else {
// If we didn't get any location, stop redirecting
break;
}
} while ($this->redirectCounter < $this->config['maxredirects']);
return $response;
}