Request_Client_External Stream driver performs external requests using php sockets. To use this driver, ensure the following is completed before executing an external request- ideally in the application bootstrap.
// In application bootstrapRequest_Client_External::$client='Request_Client_Stream';
Class declared in SYSPATH/classes/request/client/stream.php on line 3.
string $clientlink to thisdefines the external client to use by default
string(19) "Request_Client_Curl"Cache $_cachelink to thisCaching library for request caching
array $_optionslink to thiscurl options
Sends the HTTP message Request to a remote server and processes the response.
Request
$request
required - Request to sendResponse
publicfunction_send_message(Request$request){// Calculate stream mode$mode= ($request->method() === HTTP_Request::GET) ?'r':'r+';// Process cookiesif($cookies=$request->cookie()){$request->headers('cookie', http_build_query($cookies, NULL,'; '));}// Get the message body$body=$request->body();if(is_resource($body)){$body= stream_get_contents($body);}// Set the content length$request->headers('content-length', (string)strlen($body));list($protocol) =explode('/',$request->protocol());// Create the context$options=array(strtolower($protocol) =>array('method'=>$request->method(),'header'=> (string)$request->headers(),'content'=>$body));// Create the context stream$context= stream_context_create($options);stream_context_set_option($context,$this->_options);$uri=$request->uri();if($query=$request->query()){$uri.='?'.http_build_query($query, NULL,'&');}$stream=fopen($uri,$mode, FALSE,$context);$meta_data= stream_get_meta_data($stream);// Get the HTTP response code$http_response=array_shift($meta_data['wrapper_data']);if(preg_match_all('/(\w+\/\d\.\d) (\d{3})/',$http_response,$matches) !== FALSE){$protocol=$matches[1][0];$status= (int)$matches[2][0];}else{$protocol= NULL;$status= NULL;}// Create a response$response=$request->create_response();$response_header=$response->headers();// Process headersarray_map(array($response_header,'parse_header_string'),array(),$meta_data['wrapper_data']);$response->status($status)->protocol($protocol)->body(stream_get_contents($stream));// Close the stream after usefclose($stream);return$response;}
Processes the request, executing the controller action that handles this request, determined by the Route.
By default, the output from the controller is captured and returned, and no headers are sent.
$request->execute();
Request
$request
required - A request objectResponse
publicfunctionexecute_request(Request$request){if(Kohana::$profiling){// Set the benchmark name$benchmark='"'.$request->uri().'"';if($request!== Request::$initialAND Request::$current){// Add the parent request uri$benchmark.=' « "'.Request::$current->uri().'"';}// Start benchmarking$benchmark= Profiler::start('Requests',$benchmark);}// Store the current active request and replace current with new request$previous= Request::$current;Request::$current=$request;// Resolve the POST fieldsif($post=$request->post()){$request->body(http_build_query($post, NULL,'&'))->headers('content-type','application/x-www-form-urlencoded');}// If Kohana expose, set the user-agentif(Kohana::$expose){$request->headers('user-agent','Kohana Framework '.Kohana::VERSION.' ('.Kohana::CODENAME.')');}try{$response=$this->_send_message($request);}catch(Exception$e){// Restore the previous requestRequest::$current=$previous;if(isset($benchmark)){// Delete the benchmark, it is invalidProfiler::delete($benchmark);}// Re-throw the exceptionthrow$e;}// Restore the previous requestRequest::$current=$previous;if(isset($benchmark)){// Stop the benchmarkProfiler::stop($benchmark);}// Return the responsereturn$response;}
Factory method to create a new Request_Client_External object based on the client name passed, or defaulting to Request_Client_External::$client by default.
Request_Client_External::$client can be set in the application bootstrap.
array
$params
= array(0) - Parameters to pass to the clientstring
$client
= NULL - External client to useRequest_Client_External
publicstaticfunctionfactory(array$params=array(),$client= NULL){if($client=== NULL){$client= Request_Client_External::$client;}$client=new$client($params);if( !$clientinstanceofRequest_Client_External){thrownewRequest_Exception('Selected client is not a Request_Client_External object.');}return$client;}
Set and get options for this request.
mixed
$key
= NULL - Option name, or array of optionsmixed
$value
= NULL - Option valuemixedRequest_Client_External
publicfunctionoptions($key= NULL,$value= NULL){if($key=== NULL)return$this->_options;if(is_array($key)){$this->_options =$key;}elseif($value=== NULL){returnArr::get($this->_options,$key);}else{$this->_options[$key] =$value;}return$this;}
Creates a new Request_Client object,
allows for dependency injection.
array
$params
= array(0) - Params
publicfunction__construct(array$params=array()){foreach($paramsas$key=>$value){if(method_exists($this,$key)){$this->$key($value);}}}
Getter and setter for the internal caching engine, used to cache responses if available and valid.
HTTP_Cache
$cache
= NULL - Engine to use for cachingHTTP_CacheRequest_Client
publicfunctioncache(HTTP_Cache$cache= NULL){if($cache=== NULL)return$this->_cache;$this->_cache =$cache;return$this;}
Processes the request, executing the controller action that handles this request, determined by the Route.
By default, the output from the controller is captured and returned, and no headers are sent.
$request->execute();
Request
$request
required - $requestResponse
publicfunctionexecute(Request$request){if($this->_cacheinstanceofHTTP_Cache)return$this->_cache->execute($this,$request);return$this->execute_request($request);}