summaryrefslogtreecommitdiffstats
path: root/vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php
blob: 8fcfc9509e77aeda223582d956aa56ad325d1611 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
<?php
namespace GuzzleHttp\Handler;

use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Promise\PromiseInterface;
use GuzzleHttp\Promise\RejectedPromise;
use GuzzleHttp\TransferStats;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

/**
 * Handler that returns responses or throw exceptions from a queue.
 */
class MockHandler implements \Countable
{
    private $queue = [];
    private $lastRequest;
    private $lastOptions;
    private $onFulfilled;
    private $onRejected;

    /**
     * Creates a new MockHandler that uses the default handler stack list of
     * middlewares.
     *
     * @param array $queue Array of responses, callables, or exceptions.
     * @param callable $onFulfilled Callback to invoke when the return value is fulfilled.
     * @param callable $onRejected  Callback to invoke when the return value is rejected.
     *
     * @return HandlerStack
     */
    public static function createWithMiddleware(
        array $queue = null,
        callable $onFulfilled = null,
        callable $onRejected = null
    ) {
        return HandlerStack::create(new self($queue, $onFulfilled, $onRejected));
    }

    /**
     * The passed in value must be an array of
     * {@see Psr7\Http\Message\ResponseInterface} objects, Exceptions,
     * callables, or Promises.
     *
     * @param array $queue
     * @param callable $onFulfilled Callback to invoke when the return value is fulfilled.
     * @param callable $onRejected  Callback to invoke when the return value is rejected.
     */
    public function __construct(
        array $queue = null,
        callable $onFulfilled = null,
        callable $onRejected = null
    ) {
        $this->onFulfilled = $onFulfilled;
        $this->onRejected = $onRejected;

        if ($queue) {
            call_user_func_array([$this, 'append'], $queue);
        }
    }

    public function __invoke(RequestInterface $request, array $options)
    {
        if (!$this->queue) {
            throw new \OutOfBoundsException('Mock queue is empty');
        }

        if (isset($options['delay']) && is_numeric($options['delay'])) {
            usleep($options['delay'] * 1000);
        }

        $this->lastRequest = $request;
        $this->lastOptions = $options;
        $response = array_shift($this->queue);

        if (isset($options['on_headers'])) {
            if (!is_callable($options['on_headers'])) {
                throw new \InvalidArgumentException('on_headers must be callable');
            }
            try {
                $options['on_headers']($response);
            } catch (\Exception $e) {
                $msg = 'An error was encountered during the on_headers event';
                $response = new RequestException($msg, $request, $response, $e);
            }
        }

        if (is_callable($response)) {
            $response = call_user_func($response, $request, $options);
        }

        $response = $response instanceof \Exception
            ? \GuzzleHttp\Promise\rejection_for($response)
            : \GuzzleHttp\Promise\promise_for($response);

        return $response->then(
            function ($value) use ($request, $options) {
                $this->invokeStats($request, $options, $value);
                if ($this->onFulfilled) {
                    call_user_func($this->onFulfilled, $value);
                }
                if (isset($options['sink'])) {
                    $contents = (string) $value->getBody();
                    $sink = $options['sink'];

                    if (is_resource($sink)) {
                        fwrite($sink, $contents);
                    } elseif (is_string($sink)) {
                        file_put_contents($sink, $contents);
                    } elseif ($sink instanceof \Psr\Http\Message\StreamInterface) {
                        $sink->write($contents);
                    }
                }

                return $value;
            },
            function ($reason) use ($request, $options) {
                $this->invokeStats($request, $options, null, $reason);
                if ($this->onRejected) {
                    call_user_func($this->onRejected, $reason);
                }
                return \GuzzleHttp\Promise\rejection_for($reason);
            }
        );
    }

    /**
     * Adds one or more variadic requests, exceptions, callables, or promises
     * to the queue.
     */
    public function append()
    {
        foreach (func_get_args() as $value) {
            if ($value instanceof ResponseInterface
                || $value instanceof \Exception
                || $value instanceof PromiseInterface
                || is_callable($value)
            ) {
                $this->queue[] = $value;
            } else {
                throw new \InvalidArgumentException('Expected a response or '
                    . 'exception. Found ' . \GuzzleHttp\describe_type($value));
            }
        }
    }

    /**
     * Get the last received request.
     *
     * @return RequestInterface
     */
    public function getLastRequest()
    {
        return $this->lastRequest;
    }

    /**
     * Get the last received request options.
     *
     * @return array
     */
    public function getLastOptions()
    {
        return $this->lastOptions;
    }

    /**
     * Returns the number of remaining items in the queue.
     *
     * @return int
     */
    public function count()
    {
        return count($this->queue);
    }

    public function reset()
    {
        $this->queue = [];
    }

    private function invokeStats(
        RequestInterface $request,
        array $options,
        ResponseInterface $response = null,
        $reason = null
    ) {
        if (isset($options['on_stats'])) {
            $transferTime = isset($options['transfer_time']) ? $options['transfer_time'] : 0;
            $stats = new TransferStats($request, $response, $transferTime, $reason);
            call_user_func($options['on_stats'], $stats);
        }
    }
}