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<?php |
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namespace React\Http; |
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use Psr\Http\Message\ResponseInterface; |
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use RingCentral\Psr7\Request; |
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use RingCentral\Psr7\Uri; |
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use React\EventLoop\Loop; |
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use React\EventLoop\LoopInterface; |
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use React\Http\Io\ReadableBodyStream; |
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use React\Http\Io\Sender; |
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use React\Http\Io\Transaction; |
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use React\Promise\PromiseInterface; |
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use React\Socket\ConnectorInterface; |
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use React\Stream\ReadableStreamInterface; |
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use InvalidArgumentException; |
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/** |
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* @final This class is final and shouldn't be extended as it is likely to be marked final in a future release. |
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*/ |
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class Browser |
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{ |
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private $transaction; |
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private $baseUrl; |
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private $protocolVersion = '1.1'; |
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/** |
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* The `Browser` is responsible for sending HTTP requests to your HTTP server |
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* and keeps track of pending incoming HTTP responses. |
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* |
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* ```php |
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* $browser = new React\Http\Browser(); |
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* ``` |
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* |
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* This class takes two optional arguments for more advanced usage: |
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* |
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* ```php |
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* // constructor signature as of v1.5.0 |
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* $browser = new React\Http\Browser(?ConnectorInterface $connector = null, ?LoopInterface $loop = null); |
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* |
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* // legacy constructor signature before v1.5.0 |
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* $browser = new React\Http\Browser(?LoopInterface $loop = null, ?ConnectorInterface $connector = null); |
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* ``` |
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* |
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* If you need custom connector settings (DNS resolution, TLS parameters, timeouts, |
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* proxy servers etc.), you can explicitly pass a custom instance of the |
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* [`ConnectorInterface`](https://github.com/reactphp/socket#connectorinterface): |
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* |
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* ```php |
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* $connector = new React\Socket\Connector(array( |
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* 'dns' => '127.0.0.1', |
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* 'tcp' => array( |
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* 'bindto' => '192.168.10.1:0' |
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* ), |
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* 'tls' => array( |
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* 'verify_peer' => false, |
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* 'verify_peer_name' => false |
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* ) |
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* )); |
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* |
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* $browser = new React\Http\Browser($connector); |
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* ``` |
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* |
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* This class takes an optional `LoopInterface|null $loop` parameter that can be used to |
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* pass the event loop instance to use for this object. You can use a `null` value |
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* here in order to use the [default loop](https://github.com/reactphp/event-loop#loop). |
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* This value SHOULD NOT be given unless you're sure you want to explicitly use a |
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* given event loop instance. |
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* |
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* @param null|ConnectorInterface|LoopInterface $connector |
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* @param null|LoopInterface|ConnectorInterface $loop |
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* @throws \InvalidArgumentException for invalid arguments |
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*/ |
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public function __construct($connector = null, $loop = null) |
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{ |
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// swap arguments for legacy constructor signature |
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if (($connector instanceof LoopInterface || $connector === null) && ($loop instanceof ConnectorInterface || $loop === null)) { |
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$swap = $loop; |
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$loop = $connector; |
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$connector = $swap; |
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} |
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if (($connector !== null && !$connector instanceof ConnectorInterface) || ($loop !== null && !$loop instanceof LoopInterface)) { |
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throw new \InvalidArgumentException('Expected "?ConnectorInterface $connector" and "?LoopInterface $loop" arguments'); |
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} |
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$loop = $loop ?: Loop::get(); |
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$this->transaction = new Transaction( |
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Sender::createFromLoop($loop, $connector), |
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$loop |
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); |
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} |
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/** |
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* Sends an HTTP GET request |
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* |
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* ```php |
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* $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
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* var_dump((string)$response->getBody()); |
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* }, function (Exception $e) { |
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* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
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* }); |
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* ``` |
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* |
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* See also [GET request client example](../examples/01-client-get-request.php). |
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* |
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* @param string $url URL for the request. |
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* @param array $headers |
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* @return PromiseInterface<ResponseInterface> |
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*/ |
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public function get($url, array $headers = array()) |
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{ |
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return $this->requestMayBeStreaming('GET', $url, $headers); |
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} |
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/** |
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* Sends an HTTP POST request |
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* |
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* ```php |
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* $browser->post( |
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* $url, |
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* [ |
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* 'Content-Type' => 'application/json' |
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* ], |
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* json_encode($data) |
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* )->then(function (Psr\Http\Message\ResponseInterface $response) { |
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* var_dump(json_decode((string)$response->getBody())); |
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* }, function (Exception $e) { |
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* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
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* }); |
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* ``` |
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* |
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* See also [POST JSON client example](../examples/04-client-post-json.php). |
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* |
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* This method is also commonly used to submit HTML form data: |
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* |
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* ```php |
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* $data = [ |
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* 'user' => 'Alice', |
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* 'password' => 'secret' |
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* ]; |
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* |
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* $browser->post( |
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* $url, |
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* [ |
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* 'Content-Type' => 'application/x-www-form-urlencoded' |
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* ], |
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* http_build_query($data) |
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* ); |
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* ``` |
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* |
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* This method will automatically add a matching `Content-Length` request |
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* header if the outgoing request body is a `string`. If you're using a |
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* streaming request body (`ReadableStreamInterface`), it will default to |
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* using `Transfer-Encoding: chunked` or you have to explicitly pass in a |
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* matching `Content-Length` request header like so: |
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* |
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* ```php |
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* $body = new React\Stream\ThroughStream(); |
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* Loop::addTimer(1.0, function () use ($body) { |
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* $body->end("hello world"); |
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* }); |
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* |
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* $browser->post($url, array('Content-Length' => '11'), $body); |
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* ``` |
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* |
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* @param string $url URL for the request. |
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* @param array $headers |
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* @param string|ReadableStreamInterface $body |
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* @return PromiseInterface<ResponseInterface> |
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*/ |
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public function post($url, array $headers = array(), $body = '') |
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{ |
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return $this->requestMayBeStreaming('POST', $url, $headers, $body); |
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} |
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/** |
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* Sends an HTTP HEAD request |
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* |
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* ```php |
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* $browser->head($url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
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* var_dump($response->getHeaders()); |
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* }, function (Exception $e) { |
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* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
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* }); |
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* ``` |
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* |
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* @param string $url URL for the request. |
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* @param array $headers |
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* @return PromiseInterface<ResponseInterface> |
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*/ |
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public function head($url, array $headers = array()) |
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{ |
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return $this->requestMayBeStreaming('HEAD', $url, $headers); |
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} |
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/** |
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* Sends an HTTP PATCH request |
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* |
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* ```php |
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* $browser->patch( |
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* $url, |
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* [ |
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* 'Content-Type' => 'application/json' |
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* ], |
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* json_encode($data) |
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* )->then(function (Psr\Http\Message\ResponseInterface $response) { |
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* var_dump(json_decode((string)$response->getBody())); |
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* }, function (Exception $e) { |
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* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
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* }); |
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* ``` |
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* |
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* This method will automatically add a matching `Content-Length` request |
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* header if the outgoing request body is a `string`. If you're using a |
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* streaming request body (`ReadableStreamInterface`), it will default to |
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* using `Transfer-Encoding: chunked` or you have to explicitly pass in a |
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* matching `Content-Length` request header like so: |
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* |
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* ```php |
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* $body = new React\Stream\ThroughStream(); |
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* Loop::addTimer(1.0, function () use ($body) { |
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* $body->end("hello world"); |
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* }); |
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* |
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* $browser->patch($url, array('Content-Length' => '11'), $body); |
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* ``` |
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* |
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* @param string $url URL for the request. |
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* @param array $headers |
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* @param string|ReadableStreamInterface $body |
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* @return PromiseInterface<ResponseInterface> |
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*/ |
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public function patch($url, array $headers = array(), $body = '') |
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{ |
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return $this->requestMayBeStreaming('PATCH', $url , $headers, $body); |
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} |
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/** |
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* Sends an HTTP PUT request |
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* |
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* ```php |
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* $browser->put( |
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* $url, |
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* [ |
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* 'Content-Type' => 'text/xml' |
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* ], |
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* $xml->asXML() |
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* )->then(function (Psr\Http\Message\ResponseInterface $response) { |
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* var_dump((string)$response->getBody()); |
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* }, function (Exception $e) { |
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* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
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* }); |
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* ``` |
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* |
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* See also [PUT XML client example](../examples/05-client-put-xml.php). |
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* |
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* This method will automatically add a matching `Content-Length` request |
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* header if the outgoing request body is a `string`. If you're using a |
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* streaming request body (`ReadableStreamInterface`), it will default to |
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* using `Transfer-Encoding: chunked` or you have to explicitly pass in a |
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* matching `Content-Length` request header like so: |
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* |
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* ```php |
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* $body = new React\Stream\ThroughStream(); |
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* Loop::addTimer(1.0, function () use ($body) { |
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* $body->end("hello world"); |
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* }); |
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* |
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* $browser->put($url, array('Content-Length' => '11'), $body); |
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* ``` |
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* |
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* @param string $url URL for the request. |
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* @param array $headers |
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* @param string|ReadableStreamInterface $body |
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* @return PromiseInterface<ResponseInterface> |
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*/ |
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public function put($url, array $headers = array(), $body = '') |
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{ |
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return $this->requestMayBeStreaming('PUT', $url, $headers, $body); |
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} |
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/** |
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* Sends an HTTP DELETE request |
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* |
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* ```php |
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* $browser->delete($url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
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* var_dump((string)$response->getBody()); |
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* }, function (Exception $e) { |
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* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
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* }); |
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* ``` |
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* |
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* @param string $url URL for the request. |
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* @param array $headers |
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* @param string|ReadableStreamInterface $body |
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* @return PromiseInterface<ResponseInterface> |
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*/ |
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public function delete($url, array $headers = array(), $body = '') |
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{ |
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return $this->requestMayBeStreaming('DELETE', $url, $headers, $body); |
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} |
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/** |
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* Sends an arbitrary HTTP request. |
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* |
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* The preferred way to send an HTTP request is by using the above |
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* [request methods](#request-methods), for example the [`get()`](#get) |
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* method to send an HTTP `GET` request. |
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* |
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* As an alternative, if you want to use a custom HTTP request method, you |
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* can use this method: |
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* |
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* ```php |
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* $browser->request('OPTIONS', $url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
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* var_dump((string)$response->getBody()); |
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* }, function (Exception $e) { |
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* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
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* }); |
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* ``` |
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* |
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* This method will automatically add a matching `Content-Length` request |
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* header if the size of the outgoing request body is known and non-empty. |
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* For an empty request body, if will only include a `Content-Length: 0` |
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* request header if the request method usually expects a request body (only |
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* applies to `POST`, `PUT` and `PATCH`). |
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* |
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* If you're using a streaming request body (`ReadableStreamInterface`), it |
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* will default to using `Transfer-Encoding: chunked` or you have to |
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* explicitly pass in a matching `Content-Length` request header like so: |
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* |
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* ```php |
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* $body = new React\Stream\ThroughStream(); |
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* Loop::addTimer(1.0, function () use ($body) { |
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* $body->end("hello world"); |
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* }); |
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* |
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* $browser->request('POST', $url, array('Content-Length' => '11'), $body); |
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* ``` |
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* |
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* @param string $method HTTP request method, e.g. GET/HEAD/POST etc. |
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* @param string $url URL for the request |
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* @param array $headers Additional request headers |
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* @param string|ReadableStreamInterface $body HTTP request body contents |
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* @return PromiseInterface<ResponseInterface,\Exception> |
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*/ |
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public function request($method, $url, array $headers = array(), $body = '') |
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{ |
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return $this->withOptions(array('streaming' => false))->requestMayBeStreaming($method, $url, $headers, $body); |
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} |
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/** |
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* Sends an arbitrary HTTP request and receives a streaming response without buffering the response body. |
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* |
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* The preferred way to send an HTTP request is by using the above |
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* [request methods](#request-methods), for example the [`get()`](#get) |
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* method to send an HTTP `GET` request. Each of these methods will buffer |
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358
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* the whole response body in memory by default. This is easy to get started |
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* and works reasonably well for smaller responses. |
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* |
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* In some situations, it's a better idea to use a streaming approach, where |
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* only small chunks have to be kept in memory. You can use this method to |
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* send an arbitrary HTTP request and receive a streaming response. It uses |
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364
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* the same HTTP message API, but does not buffer the response body in |
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365
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* memory. It only processes the response body in small chunks as data is |
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* received and forwards this data through [ReactPHP's Stream API](https://github.com/reactphp/stream). |
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* This works for (any number of) responses of arbitrary sizes. |
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* |
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* ```php |
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* $browser->requestStreaming('GET', $url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
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* $body = $response->getBody(); |
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* assert($body instanceof Psr\Http\Message\StreamInterface); |
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373
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* assert($body instanceof React\Stream\ReadableStreamInterface); |
|
374
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* |
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375
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* $body->on('data', function ($chunk) { |
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376
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* echo $chunk; |
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377
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* }); |
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378
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* |
|
379
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* $body->on('error', function (Exception $e) { |
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380
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* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
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381
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* }); |
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382
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* |
|
383
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* $body->on('close', function () { |
|
384
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|
|
* echo '[DONE]' . PHP_EOL; |
|
385
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|
|
* }); |
|
386
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|
|
* }, function (Exception $e) { |
|
387
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|
|
* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
|
388
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|
|
* }); |
|
389
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|
|
* ``` |
|
390
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|
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* |
|
391
|
|
|
* See also [`ReadableStreamInterface`](https://github.com/reactphp/stream#readablestreaminterface) |
|
392
|
|
|
* and the [streaming response](#streaming-response) for more details, |
|
393
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|
|
* examples and possible use-cases. |
|
394
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|
|
* |
|
395
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|
|
* This method will automatically add a matching `Content-Length` request |
|
396
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|
|
* header if the size of the outgoing request body is known and non-empty. |
|
397
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|
|
* For an empty request body, if will only include a `Content-Length: 0` |
|
398
|
|
|
* request header if the request method usually expects a request body (only |
|
399
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|
|
* applies to `POST`, `PUT` and `PATCH`). |
|
400
|
|
|
* |
|
401
|
|
|
* If you're using a streaming request body (`ReadableStreamInterface`), it |
|
402
|
|
|
* will default to using `Transfer-Encoding: chunked` or you have to |
|
403
|
|
|
* explicitly pass in a matching `Content-Length` request header like so: |
|
404
|
|
|
* |
|
405
|
|
|
* ```php |
|
406
|
|
|
* $body = new React\Stream\ThroughStream(); |
|
407
|
|
|
* Loop::addTimer(1.0, function () use ($body) { |
|
408
|
|
|
* $body->end("hello world"); |
|
409
|
|
|
* }); |
|
410
|
|
|
* |
|
411
|
|
|
* $browser->requestStreaming('POST', $url, array('Content-Length' => '11'), $body); |
|
412
|
|
|
* ``` |
|
413
|
|
|
* |
|
414
|
|
|
* @param string $method HTTP request method, e.g. GET/HEAD/POST etc. |
|
415
|
|
|
* @param string $url URL for the request |
|
416
|
|
|
* @param array $headers Additional request headers |
|
417
|
|
|
* @param string|ReadableStreamInterface $body HTTP request body contents |
|
418
|
|
|
* @return PromiseInterface<ResponseInterface,\Exception> |
|
419
|
|
|
*/ |
|
420
|
|
|
public function requestStreaming($method, $url, $headers = array(), $body = '') |
|
421
|
|
|
{ |
|
422
|
|
|
return $this->withOptions(array('streaming' => true))->requestMayBeStreaming($method, $url, $headers, $body); |
|
423
|
|
|
} |
|
424
|
|
|
|
|
425
|
|
|
/** |
|
426
|
|
|
* Changes the maximum timeout used for waiting for pending requests. |
|
427
|
|
|
* |
|
428
|
|
|
* You can pass in the number of seconds to use as a new timeout value: |
|
429
|
|
|
* |
|
430
|
|
|
* ```php |
|
431
|
|
|
* $browser = $browser->withTimeout(10.0); |
|
432
|
|
|
* ``` |
|
433
|
|
|
* |
|
434
|
|
|
* You can pass in a bool `false` to disable any timeouts. In this case, |
|
435
|
|
|
* requests can stay pending forever: |
|
436
|
|
|
* |
|
437
|
|
|
* ```php |
|
438
|
|
|
* $browser = $browser->withTimeout(false); |
|
439
|
|
|
* ``` |
|
440
|
|
|
* |
|
441
|
|
|
* You can pass in a bool `true` to re-enable default timeout handling. This |
|
442
|
|
|
* will respects PHP's `default_socket_timeout` setting (default 60s): |
|
443
|
|
|
* |
|
444
|
|
|
* ```php |
|
445
|
|
|
* $browser = $browser->withTimeout(true); |
|
446
|
|
|
* ``` |
|
447
|
|
|
* |
|
448
|
|
|
* See also [timeouts](#timeouts) for more details about timeout handling. |
|
449
|
|
|
* |
|
450
|
|
|
* Notice that the [`Browser`](#browser) is an immutable object, i.e. this |
|
451
|
|
|
* method actually returns a *new* [`Browser`](#browser) instance with the |
|
452
|
|
|
* given timeout value applied. |
|
453
|
|
|
* |
|
454
|
|
|
* @param bool|number $timeout |
|
455
|
|
|
* @return self |
|
456
|
|
|
*/ |
|
457
|
|
|
public function withTimeout($timeout) |
|
458
|
|
|
{ |
|
459
|
|
|
if ($timeout === true) { |
|
460
|
|
|
$timeout = null; |
|
461
|
|
|
} elseif ($timeout === false) { |
|
462
|
|
|
$timeout = -1; |
|
463
|
|
|
} elseif ($timeout < 0) { |
|
464
|
|
|
$timeout = 0; |
|
465
|
|
|
} |
|
466
|
|
|
|
|
467
|
|
|
return $this->withOptions(array( |
|
468
|
|
|
'timeout' => $timeout, |
|
469
|
|
|
)); |
|
470
|
|
|
} |
|
471
|
|
|
|
|
472
|
|
|
/** |
|
473
|
|
|
* Changes how HTTP redirects will be followed. |
|
474
|
|
|
* |
|
475
|
|
|
* You can pass in the maximum number of redirects to follow: |
|
476
|
|
|
* |
|
477
|
|
|
* ```php |
|
478
|
|
|
* $browser = $browser->withFollowRedirects(5); |
|
479
|
|
|
* ``` |
|
480
|
|
|
* |
|
481
|
|
|
* The request will automatically be rejected when the number of redirects |
|
482
|
|
|
* is exceeded. You can pass in a `0` to reject the request for any |
|
483
|
|
|
* redirects encountered: |
|
484
|
|
|
* |
|
485
|
|
|
* ```php |
|
486
|
|
|
* $browser = $browser->withFollowRedirects(0); |
|
487
|
|
|
* |
|
488
|
|
|
* $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
|
489
|
|
|
* // only non-redirected responses will now end up here |
|
490
|
|
|
* var_dump($response->getHeaders()); |
|
491
|
|
|
* }, function (Exception $e) { |
|
492
|
|
|
* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
|
493
|
|
|
* }); |
|
494
|
|
|
* ``` |
|
495
|
|
|
* |
|
496
|
|
|
* You can pass in a bool `false` to disable following any redirects. In |
|
497
|
|
|
* this case, requests will resolve with the redirection response instead |
|
498
|
|
|
* of following the `Location` response header: |
|
499
|
|
|
* |
|
500
|
|
|
* ```php |
|
501
|
|
|
* $browser = $browser->withFollowRedirects(false); |
|
502
|
|
|
* |
|
503
|
|
|
* $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
|
504
|
|
|
* // any redirects will now end up here |
|
505
|
|
|
* var_dump($response->getHeaderLine('Location')); |
|
506
|
|
|
* }, function (Exception $e) { |
|
507
|
|
|
* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
|
508
|
|
|
* }); |
|
509
|
|
|
* ``` |
|
510
|
|
|
* |
|
511
|
|
|
* You can pass in a bool `true` to re-enable default redirect handling. |
|
512
|
|
|
* This defaults to following a maximum of 10 redirects: |
|
513
|
|
|
* |
|
514
|
|
|
* ```php |
|
515
|
|
|
* $browser = $browser->withFollowRedirects(true); |
|
516
|
|
|
* ``` |
|
517
|
|
|
* |
|
518
|
|
|
* See also [redirects](#redirects) for more details about redirect handling. |
|
519
|
|
|
* |
|
520
|
|
|
* Notice that the [`Browser`](#browser) is an immutable object, i.e. this |
|
521
|
|
|
* method actually returns a *new* [`Browser`](#browser) instance with the |
|
522
|
|
|
* given redirect setting applied. |
|
523
|
|
|
* |
|
524
|
|
|
* @param bool|int $followRedirects |
|
525
|
|
|
* @return self |
|
526
|
|
|
*/ |
|
527
|
|
|
public function withFollowRedirects($followRedirects) |
|
528
|
|
|
{ |
|
529
|
|
|
return $this->withOptions(array( |
|
530
|
|
|
'followRedirects' => $followRedirects !== false, |
|
531
|
|
|
'maxRedirects' => \is_bool($followRedirects) ? null : $followRedirects |
|
532
|
|
|
)); |
|
533
|
|
|
} |
|
534
|
|
|
|
|
535
|
|
|
/** |
|
536
|
|
|
* Changes whether non-successful HTTP response status codes (4xx and 5xx) will be rejected. |
|
537
|
|
|
* |
|
538
|
|
|
* You can pass in a bool `false` to disable rejecting incoming responses |
|
539
|
|
|
* that use a 4xx or 5xx response status code. In this case, requests will |
|
540
|
|
|
* resolve with the response message indicating an error condition: |
|
541
|
|
|
* |
|
542
|
|
|
* ```php |
|
543
|
|
|
* $browser = $browser->withRejectErrorResponse(false); |
|
544
|
|
|
* |
|
545
|
|
|
* $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
|
546
|
|
|
* // any HTTP response will now end up here |
|
547
|
|
|
* var_dump($response->getStatusCode(), $response->getReasonPhrase()); |
|
548
|
|
|
* }, function (Exception $e) { |
|
549
|
|
|
* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
|
550
|
|
|
* }); |
|
551
|
|
|
* ``` |
|
552
|
|
|
* |
|
553
|
|
|
* You can pass in a bool `true` to re-enable default status code handling. |
|
554
|
|
|
* This defaults to rejecting any response status codes in the 4xx or 5xx |
|
555
|
|
|
* range: |
|
556
|
|
|
* |
|
557
|
|
|
* ```php |
|
558
|
|
|
* $browser = $browser->withRejectErrorResponse(true); |
|
559
|
|
|
* |
|
560
|
|
|
* $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
|
561
|
|
|
* // any successful HTTP response will now end up here |
|
562
|
|
|
* var_dump($response->getStatusCode(), $response->getReasonPhrase()); |
|
563
|
|
|
* }, function (Exception $e) { |
|
564
|
|
|
* if ($e instanceof React\Http\Message\ResponseException) { |
|
565
|
|
|
* // any HTTP response error message will now end up here |
|
566
|
|
|
* $response = $e->getResponse(); |
|
567
|
|
|
* var_dump($response->getStatusCode(), $response->getReasonPhrase()); |
|
568
|
|
|
* } else { |
|
569
|
|
|
* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
|
570
|
|
|
* } |
|
571
|
|
|
* }); |
|
572
|
|
|
* ``` |
|
573
|
|
|
* |
|
574
|
|
|
* Notice that the [`Browser`](#browser) is an immutable object, i.e. this |
|
575
|
|
|
* method actually returns a *new* [`Browser`](#browser) instance with the |
|
576
|
|
|
* given setting applied. |
|
577
|
|
|
* |
|
578
|
|
|
* @param bool $obeySuccessCode |
|
579
|
|
|
* @return self |
|
580
|
|
|
*/ |
|
581
|
|
|
public function withRejectErrorResponse($obeySuccessCode) |
|
582
|
|
|
{ |
|
583
|
|
|
return $this->withOptions(array( |
|
584
|
|
|
'obeySuccessCode' => $obeySuccessCode, |
|
585
|
|
|
)); |
|
586
|
|
|
} |
|
587
|
|
|
|
|
588
|
|
|
/** |
|
589
|
|
|
* Changes the base URL used to resolve relative URLs to. |
|
590
|
|
|
* |
|
591
|
|
|
* If you configure a base URL, any requests to relative URLs will be |
|
592
|
|
|
* processed by first resolving this relative to the given absolute base |
|
593
|
|
|
* URL. This supports resolving relative path references (like `../` etc.). |
|
594
|
|
|
* This is particularly useful for (RESTful) API calls where all endpoints |
|
595
|
|
|
* (URLs) are located under a common base URL. |
|
596
|
|
|
* |
|
597
|
|
|
* ```php |
|
598
|
|
|
* $browser = $browser->withBase('http://api.example.com/v3/'); |
|
599
|
|
|
* |
|
600
|
|
|
* // will request http://api.example.com/v3/users |
|
601
|
|
|
* $browser->get('users')->then(…); |
|
602
|
|
|
* ``` |
|
603
|
|
|
* |
|
604
|
|
|
* You can pass in a `null` base URL to return a new instance that does not |
|
605
|
|
|
* use a base URL: |
|
606
|
|
|
* |
|
607
|
|
|
* ```php |
|
608
|
|
|
* $browser = $browser->withBase(null); |
|
609
|
|
|
* ``` |
|
610
|
|
|
* |
|
611
|
|
|
* Accordingly, any requests using relative URLs to a browser that does not |
|
612
|
|
|
* use a base URL can not be completed and will be rejected without sending |
|
613
|
|
|
* a request. |
|
614
|
|
|
* |
|
615
|
|
|
* This method will throw an `InvalidArgumentException` if the given |
|
616
|
|
|
* `$baseUrl` argument is not a valid URL. |
|
617
|
|
|
* |
|
618
|
|
|
* Notice that the [`Browser`](#browser) is an immutable object, i.e. the `withBase()` method |
|
619
|
|
|
* actually returns a *new* [`Browser`](#browser) instance with the given base URL applied. |
|
620
|
|
|
* |
|
621
|
|
|
* @param string|null $baseUrl absolute base URL |
|
622
|
|
|
* @return self |
|
623
|
|
|
* @throws InvalidArgumentException if the given $baseUrl is not a valid absolute URL |
|
624
|
|
|
* @see self::withoutBase() |
|
625
|
|
|
*/ |
|
626
|
|
|
public function withBase($baseUrl) |
|
627
|
|
|
{ |
|
628
|
|
|
$browser = clone $this; |
|
629
|
|
|
if ($baseUrl === null) { |
|
630
|
|
|
$browser->baseUrl = null; |
|
631
|
|
|
return $browser; |
|
632
|
|
|
} |
|
633
|
|
|
|
|
634
|
|
|
$browser->baseUrl = new Uri($baseUrl); |
|
635
|
|
|
if (!\in_array($browser->baseUrl->getScheme(), array('http', 'https')) || $browser->baseUrl->getHost() === '') { |
|
636
|
|
|
throw new \InvalidArgumentException('Base URL must be absolute'); |
|
637
|
|
|
} |
|
638
|
|
|
|
|
639
|
|
|
return $browser; |
|
640
|
|
|
} |
|
641
|
|
|
|
|
642
|
|
|
/** |
|
643
|
|
|
* Changes the HTTP protocol version that will be used for all subsequent requests. |
|
644
|
|
|
* |
|
645
|
|
|
* All the above [request methods](#request-methods) default to sending |
|
646
|
|
|
* requests as HTTP/1.1. This is the preferred HTTP protocol version which |
|
647
|
|
|
* also provides decent backwards-compatibility with legacy HTTP/1.0 |
|
648
|
|
|
* servers. As such, there should rarely be a need to explicitly change this |
|
649
|
|
|
* protocol version. |
|
650
|
|
|
* |
|
651
|
|
|
* If you want to explicitly use the legacy HTTP/1.0 protocol version, you |
|
652
|
|
|
* can use this method: |
|
653
|
|
|
* |
|
654
|
|
|
* ```php |
|
655
|
|
|
* $browser = $browser->withProtocolVersion('1.0'); |
|
656
|
|
|
* |
|
657
|
|
|
* $browser->get($url)->then(…); |
|
658
|
|
|
* ``` |
|
659
|
|
|
* |
|
660
|
|
|
* Notice that the [`Browser`](#browser) is an immutable object, i.e. this |
|
661
|
|
|
* method actually returns a *new* [`Browser`](#browser) instance with the |
|
662
|
|
|
* new protocol version applied. |
|
663
|
|
|
* |
|
664
|
|
|
* @param string $protocolVersion HTTP protocol version to use, must be one of "1.1" or "1.0" |
|
665
|
|
|
* @return self |
|
666
|
|
|
* @throws InvalidArgumentException |
|
667
|
|
|
*/ |
|
668
|
|
|
public function withProtocolVersion($protocolVersion) |
|
669
|
|
|
{ |
|
670
|
|
|
if (!\in_array($protocolVersion, array('1.0', '1.1'), true)) { |
|
671
|
|
|
throw new InvalidArgumentException('Invalid HTTP protocol version, must be one of "1.1" or "1.0"'); |
|
672
|
|
|
} |
|
673
|
|
|
|
|
674
|
|
|
$browser = clone $this; |
|
675
|
|
|
$browser->protocolVersion = (string) $protocolVersion; |
|
676
|
|
|
|
|
677
|
|
|
return $browser; |
|
678
|
|
|
} |
|
679
|
|
|
|
|
680
|
|
|
/** |
|
681
|
|
|
* Changes the maximum size for buffering a response body. |
|
682
|
|
|
* |
|
683
|
|
|
* The preferred way to send an HTTP request is by using the above |
|
684
|
|
|
* [request methods](#request-methods), for example the [`get()`](#get) |
|
685
|
|
|
* method to send an HTTP `GET` request. Each of these methods will buffer |
|
686
|
|
|
* the whole response body in memory by default. This is easy to get started |
|
687
|
|
|
* and works reasonably well for smaller responses. |
|
688
|
|
|
* |
|
689
|
|
|
* By default, the response body buffer will be limited to 16 MiB. If the |
|
690
|
|
|
* response body exceeds this maximum size, the request will be rejected. |
|
691
|
|
|
* |
|
692
|
|
|
* You can pass in the maximum number of bytes to buffer: |
|
693
|
|
|
* |
|
694
|
|
|
* ```php |
|
695
|
|
|
* $browser = $browser->withResponseBuffer(1024 * 1024); |
|
696
|
|
|
* |
|
697
|
|
|
* $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) { |
|
698
|
|
|
* // response body will not exceed 1 MiB |
|
699
|
|
|
* var_dump($response->getHeaders(), (string) $response->getBody()); |
|
700
|
|
|
* }, function (Exception $e) { |
|
701
|
|
|
* echo 'Error: ' . $e->getMessage() . PHP_EOL; |
|
702
|
|
|
* }); |
|
703
|
|
|
* ``` |
|
704
|
|
|
* |
|
705
|
|
|
* Note that the response body buffer has to be kept in memory for each |
|
706
|
|
|
* pending request until its transfer is completed and it will only be freed |
|
707
|
|
|
* after a pending request is fulfilled. As such, increasing this maximum |
|
708
|
|
|
* buffer size to allow larger response bodies is usually not recommended. |
|
709
|
|
|
* Instead, you can use the [`requestStreaming()` method](#requeststreaming) |
|
710
|
|
|
* to receive responses with arbitrary sizes without buffering. Accordingly, |
|
711
|
|
|
* this maximum buffer size setting has no effect on streaming responses. |
|
712
|
|
|
* |
|
713
|
|
|
* Notice that the [`Browser`](#browser) is an immutable object, i.e. this |
|
714
|
|
|
* method actually returns a *new* [`Browser`](#browser) instance with the |
|
715
|
|
|
* given setting applied. |
|
716
|
|
|
* |
|
717
|
|
|
* @param int $maximumSize |
|
718
|
|
|
* @return self |
|
719
|
|
|
* @see self::requestStreaming() |
|
720
|
|
|
*/ |
|
721
|
|
|
public function withResponseBuffer($maximumSize) |
|
722
|
|
|
{ |
|
723
|
|
|
return $this->withOptions(array( |
|
724
|
|
|
'maximumSize' => $maximumSize |
|
725
|
|
|
)); |
|
726
|
|
|
} |
|
727
|
|
|
|
|
728
|
|
|
/** |
|
729
|
|
|
* Changes the [options](#options) to use: |
|
730
|
|
|
* |
|
731
|
|
|
* The [`Browser`](#browser) class exposes several options for the handling of |
|
732
|
|
|
* HTTP transactions. These options resemble some of PHP's |
|
733
|
|
|
* [HTTP context options](http://php.net/manual/en/context.http.php) and |
|
734
|
|
|
* can be controlled via the following API (and their defaults): |
|
735
|
|
|
* |
|
736
|
|
|
* ```php |
|
737
|
|
|
* // deprecated |
|
738
|
|
|
* $newBrowser = $browser->withOptions(array( |
|
739
|
|
|
* 'timeout' => null, // see withTimeout() instead |
|
740
|
|
|
* 'followRedirects' => true, // see withFollowRedirects() instead |
|
741
|
|
|
* 'maxRedirects' => 10, // see withFollowRedirects() instead |
|
742
|
|
|
* 'obeySuccessCode' => true, // see withRejectErrorResponse() instead |
|
743
|
|
|
* 'streaming' => false, // deprecated, see requestStreaming() instead |
|
744
|
|
|
* )); |
|
745
|
|
|
* ``` |
|
746
|
|
|
* |
|
747
|
|
|
* See also [timeouts](#timeouts), [redirects](#redirects) and |
|
748
|
|
|
* [streaming](#streaming) for more details. |
|
749
|
|
|
* |
|
750
|
|
|
* Notice that the [`Browser`](#browser) is an immutable object, i.e. this |
|
751
|
|
|
* method actually returns a *new* [`Browser`](#browser) instance with the |
|
752
|
|
|
* options applied. |
|
753
|
|
|
* |
|
754
|
|
|
* @param array $options |
|
755
|
|
|
* @return self |
|
756
|
|
|
* @see self::withTimeout() |
|
757
|
|
|
* @see self::withFollowRedirects() |
|
758
|
|
|
* @see self::withRejectErrorResponse() |
|
759
|
|
|
*/ |
|
760
|
|
|
private function withOptions(array $options) |
|
761
|
|
|
{ |
|
762
|
|
|
$browser = clone $this; |
|
763
|
|
|
$browser->transaction = $this->transaction->withOptions($options); |
|
764
|
|
|
|
|
765
|
|
|
return $browser; |
|
766
|
|
|
} |
|
767
|
|
|
|
|
768
|
|
|
/** |
|
769
|
|
|
* @param string $method |
|
770
|
|
|
* @param string $url |
|
771
|
|
|
* @param array $headers |
|
772
|
|
|
* @param string|ReadableStreamInterface $body |
|
773
|
|
|
* @return PromiseInterface<ResponseInterface,\Exception> |
|
774
|
|
|
*/ |
|
775
|
|
|
private function requestMayBeStreaming($method, $url, array $headers = array(), $body = '') |
|
776
|
|
|
{ |
|
777
|
|
|
if ($this->baseUrl !== null) { |
|
778
|
|
|
// ensure we're actually below the base URL |
|
779
|
|
|
$url = Uri::resolve($this->baseUrl, $url); |
|
780
|
|
|
} |
|
781
|
|
|
|
|
782
|
|
|
if ($body instanceof ReadableStreamInterface) { |
|
783
|
|
|
$body = new ReadableBodyStream($body); |
|
784
|
|
|
} |
|
785
|
|
|
|
|
786
|
|
|
return $this->transaction->send( |
|
787
|
|
|
new Request($method, $url, $headers, $body, $this->protocolVersion) |
|
788
|
|
|
); |
|
789
|
|
|
} |
|
790
|
|
|
} |
|
791
|
|
|
|