gmail-smtp / google-api-php-client / vendor / guzzlehttp / guzzle / src / Handler / Proxy.php

Proxy.php in Gmail SMTP trunk, at google-api-php-client/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php

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1	<?php
2
3	namespace GuzzleHttp\Handler;
4
5	use GuzzleHttp\Promise\PromiseInterface;
6	use GuzzleHttp\RequestOptions;
7	use Psr\Http\Message\RequestInterface;
8
9	/**
10	* Provides basic proxies for handlers.
11	*
12	* @final
13	*/
14	class Proxy
15	{
16	/**
17	* Sends synchronous requests to a specific handler while sending all other
18	* requests to another handler.
19	*
20	* @param callable(RequestInterface, array): PromiseInterface $default Handler used for normal responses
21	* @param callable(RequestInterface, array): PromiseInterface $sync Handler used for synchronous responses.
22	*
23	* @return callable(RequestInterface, array): PromiseInterface Returns the composed handler.
24	*/
25	public static function wrapSync(callable $default, callable $sync): callable
26	{
27	return static function (RequestInterface $request, array $options) use ($default, $sync): PromiseInterface {
28	return empty($options[RequestOptions::SYNCHRONOUS]) ? $default($request, $options) : $sync($request, $options);
29	};
30	}
31
32	/**
33	* Sends streaming requests to a streaming compatible handler while sending
34	* all other requests to a default handler.
35	*
36	* This, for example, could be useful for taking advantage of the
37	* performance benefits of curl while still supporting true streaming
38	* through the StreamHandler.
39	*
40	* @param callable(RequestInterface, array): PromiseInterface $default Handler used for non-streaming responses
41	* @param callable(RequestInterface, array): PromiseInterface $streaming Handler used for streaming responses
42	*
43	* @return callable(RequestInterface, array): PromiseInterface Returns the composed handler.
44	*/
45	public static function wrapStreaming(callable $default, callable $streaming): callable
46	{
47	return static function (RequestInterface $request, array $options) use ($default, $streaming): PromiseInterface {
48	return empty($options['stream']) ? $default($request, $options) : $streaming($request, $options);
49	};
50	}
51	}
52