media-cloud-sync / includes / sdk / s3 / GuzzleHttp / Middleware.php

Middleware.php in Media Cloud Sync 1.0.2, at includes/sdk/s3/GuzzleHttp/Middleware.php

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1	<?php
2
3	namespace Dudlewebs\WPMCS\s3\GuzzleHttp;
4
5	use Dudlewebs\WPMCS\s3\GuzzleHttp\Cookie\CookieJarInterface;
6	use Dudlewebs\WPMCS\s3\GuzzleHttp\Exception\RequestException;
7	use Dudlewebs\WPMCS\s3\GuzzleHttp\Promise\RejectedPromise;
8	use Dudlewebs\WPMCS\s3\GuzzleHttp\Psr7;
9	use Dudlewebs\WPMCS\s3\Psr\Http\Message\ResponseInterface;
10	use Dudlewebs\WPMCS\s3\Psr\Log\LoggerInterface;
11	/**
12	* Functions used to create and wrap handlers with handler middleware.
13	*/
14	final class Middleware
15	{
16	/**
17	* Middleware that adds cookies to requests.
18	*
19	* The options array must be set to a CookieJarInterface in order to use
20	* cookies. This is typically handled for you by a client.
21	*
22	* @return callable Returns a function that accepts the next handler.
23	*/
24	public static function cookies()
25	{
26	return function (callable $handler) {
27	return function ($request, array $options) use($handler) {
28	if (empty($options['cookies'])) {
29	return $handler($request, $options);
30	} elseif (!$options['cookies'] instanceof CookieJarInterface) {
31	throw new \InvalidArgumentException('Dudlewebs\\WPMCS\\s3\\cookies must be an instance of GuzzleHttp\\Cookie\\CookieJarInterface');
32	}
33	$cookieJar = $options['cookies'];
34	$request = $cookieJar->withCookieHeader($request);
35	return $handler($request, $options)->then(function ($response) use($cookieJar, $request) {
36	$cookieJar->extractCookies($request, $response);
37	return $response;
38	});
39	};
40	};
41	}
42	/**
43	* Middleware that throws exceptions for 4xx or 5xx responses when the
44	* "http_error" request option is set to true.
45	*
46	* @return callable Returns a function that accepts the next handler.
47	*/
48	public static function httpErrors()
49	{
50	return function (callable $handler) {
51	return function ($request, array $options) use($handler) {
52	if (empty($options['http_errors'])) {
53	return $handler($request, $options);
54	}
55	return $handler($request, $options)->then(function (ResponseInterface $response) use($request) {
56	$code = $response->getStatusCode();
57	if ($code < 400) {
58	return $response;
59	}
60	throw RequestException::create($request, $response);
61	});
62	};
63	};
64	}
65	/**
66	* Middleware that pushes history data to an ArrayAccess container.
67	*
68	* @param array\|\ArrayAccess $container Container to hold the history (by reference).
69	*
70	* @return callable Returns a function that accepts the next handler.
71	* @throws \InvalidArgumentException if container is not an array or ArrayAccess.
72	*/
73	public static function history(&$container)
74	{
75	if (!\is_array($container) && !$container instanceof \ArrayAccess) {
76	throw new \InvalidArgumentException('history container must be an array or object implementing ArrayAccess');
77	}
78	return function (callable $handler) use(&$container) {
79	return function ($request, array $options) use($handler, &$container) {
80	return $handler($request, $options)->then(function ($value) use($request, &$container, $options) {
81	$container[] = ['request' => $request, 'response' => $value, 'error' => null, 'options' => $options];
82	return $value;
83	}, function ($reason) use($request, &$container, $options) {
84	$container[] = ['request' => $request, 'response' => null, 'error' => $reason, 'options' => $options];
85	return \Dudlewebs\WPMCS\s3\GuzzleHttp\Promise\rejection_for($reason);
86	});
87	};
88	};
89	}
90	/**
91	* Middleware that invokes a callback before and after sending a request.
92	*
93	* The provided listener cannot modify or alter the response. It simply
94	* "taps" into the chain to be notified before returning the promise. The
95	* before listener accepts a request and options array, and the after
96	* listener accepts a request, options array, and response promise.
97	*
98	* @param callable $before Function to invoke before forwarding the request.
99	* @param callable $after Function invoked after forwarding.
100	*
101	* @return callable Returns a function that accepts the next handler.
102	*/
103	public static function tap(callable $before = null, callable $after = null)
104	{
105	return function (callable $handler) use($before, $after) {
106	return function ($request, array $options) use($handler, $before, $after) {
107	if ($before) {
108	$before($request, $options);
109	}
110	$response = $handler($request, $options);
111	if ($after) {
112	$after($request, $options, $response);
113	}
114	return $response;
115	};
116	};
117	}
118	/**
119	* Middleware that handles request redirects.
120	*
121	* @return callable Returns a function that accepts the next handler.
122	*/
123	public static function redirect()
124	{
125	return function (callable $handler) {
126	return new RedirectMiddleware($handler);
127	};
128	}
129	/**
130	* Middleware that retries requests based on the boolean result of
131	* invoking the provided "decider" function.
132	*
133	* If no delay function is provided, a simple implementation of exponential
134	* backoff will be utilized.
135	*
136	* @param callable $decider Function that accepts the number of retries,
137	* a request, [response], and [exception] and
138	* returns true if the request is to be retried.
139	* @param callable $delay Function that accepts the number of retries and
140	* returns the number of milliseconds to delay.
141	*
142	* @return callable Returns a function that accepts the next handler.
143	*/
144	public static function retry(callable $decider, callable $delay = null)
145	{
146	return function (callable $handler) use($decider, $delay) {
147	return new RetryMiddleware($decider, $handler, $delay);
148	};
149	}
150	/**
151	* Middleware that logs requests, responses, and errors using a message
152	* formatter.
153	*
154	* @param LoggerInterface $logger Logs messages.
155	* @param MessageFormatter $formatter Formatter used to create message strings.
156	* @param string $logLevel Level at which to log requests.
157	*
158	* @return callable Returns a function that accepts the next handler.
159	*/
160	public static function log(LoggerInterface $logger, MessageFormatter $formatter, $logLevel = 'info')
161	{
162	return function (callable $handler) use($logger, $formatter, $logLevel) {
163	return function ($request, array $options) use($handler, $logger, $formatter, $logLevel) {
164	return $handler($request, $options)->then(function ($response) use($logger, $request, $formatter, $logLevel) {
165	$message = $formatter->format($request, $response);
166	$logger->log($logLevel, $message);
167	return $response;
168	}, function ($reason) use($logger, $request, $formatter) {
169	$response = $reason instanceof RequestException ? $reason->getResponse() : null;
170	$message = $formatter->format($request, $response, $reason);
171	$logger->notice($message);
172	return \Dudlewebs\WPMCS\s3\GuzzleHttp\Promise\rejection_for($reason);
173	});
174	};
175	};
176	}
177	/**
178	* This middleware adds a default content-type if possible, a default
179	* content-length or transfer-encoding header, and the expect header.
180	*
181	* @return callable
182	*/
183	public static function prepareBody()
184	{
185	return function (callable $handler) {
186	return new PrepareBodyMiddleware($handler);
187	};
188	}
189	/**
190	* Middleware that applies a map function to the request before passing to
191	* the next handler.
192	*
193	* @param callable $fn Function that accepts a RequestInterface and returns
194	* a RequestInterface.
195	* @return callable
196	*/
197	public static function mapRequest(callable $fn)
198	{
199	return function (callable $handler) use($fn) {
200	return function ($request, array $options) use($handler, $fn) {
201	return $handler($fn($request), $options);
202	};
203	};
204	}
205	/**
206	* Middleware that applies a map function to the resolved promise's
207	* response.
208	*
209	* @param callable $fn Function that accepts a ResponseInterface and
210	* returns a ResponseInterface.
211	* @return callable
212	*/
213	public static function mapResponse(callable $fn)
214	{
215	return function (callable $handler) use($fn) {
216	return function ($request, array $options) use($handler, $fn) {
217	return $handler($request, $options)->then($fn);
218	};
219	};
220	}
221	}
222