/
AsyncContext.php
200 lines (174 loc) · 5.66 KB
/
AsyncContext.php
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
196
197
198
199
200
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpClient\Response;
use Symfony\Component\HttpClient\Chunk\DataChunk;
use Symfony\Component\HttpClient\Chunk\LastChunk;
use Symfony\Component\HttpClient\Exception\TransportException;
use Symfony\Contracts\HttpClient\ChunkInterface;
use Symfony\Contracts\HttpClient\HttpClientInterface;
use Symfony\Contracts\HttpClient\ResponseInterface;
/**
* A DTO to work with AsyncResponse.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
final class AsyncContext
{
/** @var callable|null */
private $passthru;
private HttpClientInterface $client;
private ResponseInterface $response;
private array $info = [];
/** @var resource|null */
private $content;
private int $offset;
/**
* @param resource|null $content
*/
public function __construct(?callable &$passthru, HttpClientInterface $client, ResponseInterface &$response, array &$info, $content, int $offset)
{
$this->passthru = &$passthru;
$this->client = $client;
$this->response = &$response;
$this->info = &$info;
$this->content = $content;
$this->offset = $offset;
}
/**
* Returns the HTTP status without consuming the response.
*/
public function getStatusCode(): int
{
return $this->response->getInfo('http_code');
}
/**
* Returns the headers without consuming the response.
*/
public function getHeaders(): array
{
$headers = [];
foreach ($this->response->getInfo('response_headers') as $h) {
if (11 <= \strlen($h) && '/' === $h[4] && preg_match('#^HTTP/\d+(?:\.\d+)? ([123456789]\d\d)(?: |$)#', $h, $m)) {
$headers = [];
} elseif (2 === \count($m = explode(':', $h, 2))) {
$headers[strtolower($m[0])][] = ltrim($m[1]);
}
}
return $headers;
}
/**
* @return resource|null The PHP stream resource where the content is buffered, if it is
*/
public function getContent()
{
return $this->content;
}
/**
* Creates a new chunk of content.
*/
public function createChunk(string $data): ChunkInterface
{
return new DataChunk($this->offset, $data);
}
/**
* Pauses the request for the given number of seconds.
*/
public function pause(float $duration): void
{
if (\is_callable($pause = $this->response->getInfo('pause_handler'))) {
$pause($duration);
} elseif (0 < $duration) {
usleep((int) (1E6 * $duration));
}
}
/**
* Cancels the request and returns the last chunk to yield.
*/
public function cancel(): ChunkInterface
{
$this->info['canceled'] = true;
$this->info['error'] = 'Response has been canceled.';
$this->response->cancel();
return new LastChunk();
}
/**
* Returns the current info of the response.
*/
public function getInfo(?string $type = null): mixed
{
if (null !== $type) {
return $this->info[$type] ?? $this->response->getInfo($type);
}
return $this->info + $this->response->getInfo();
}
/**
* Attaches an info to the response.
*
* @return $this
*/
public function setInfo(string $type, mixed $value): static
{
if ('canceled' === $type && $value !== $this->info['canceled']) {
throw new \LogicException('You cannot set the "canceled" info directly.');
}
if (null === $value) {
unset($this->info[$type]);
} else {
$this->info[$type] = $value;
}
return $this;
}
/**
* Returns the currently processed response.
*/
public function getResponse(): ResponseInterface
{
return $this->response;
}
/**
* Replaces the currently processed response by doing a new request.
*/
public function replaceRequest(string $method, string $url, array $options = []): ResponseInterface
{
$this->info['previous_info'][] = $info = $this->response->getInfo();
if (null !== $onProgress = $options['on_progress'] ?? null) {
$thisInfo = &$this->info;
$options['on_progress'] = static function (int $dlNow, int $dlSize, array $info) use (&$thisInfo, $onProgress) {
$onProgress($dlNow, $dlSize, $thisInfo + $info);
};
}
if (0 < ($info['max_duration'] ?? 0) && 0 < ($info['total_time'] ?? 0)) {
if (0 >= $options['max_duration'] = $info['max_duration'] - $info['total_time']) {
throw new TransportException(sprintf('Max duration was reached for "%s".', $info['url']));
}
}
return $this->response = $this->client->request($method, $url, ['buffer' => false] + $options);
}
/**
* Replaces the currently processed response by another one.
*/
public function replaceResponse(ResponseInterface $response): ResponseInterface
{
$this->info['previous_info'][] = $this->response->getInfo();
return $this->response = $response;
}
/**
* Replaces or removes the chunk filter iterator.
*
* @param ?callable(ChunkInterface, self): ?\Iterator $passthru
*/
public function passthru(?callable $passthru = null): void
{
$this->passthru = $passthru ?? static function ($chunk, $context) {
$context->passthru = null;
yield $chunk;
};
}
}