|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* This file is a part of Woketo package. |
|
4
|
|
|
* |
|
5
|
|
|
* (c) Nekland <[email protected]> |
|
6
|
|
|
* |
|
7
|
|
|
* For the full license, take a look to the LICENSE file |
|
8
|
|
|
* on the root directory of this project |
|
9
|
|
|
*/ |
|
10
|
|
|
|
|
11
|
|
|
namespace Nekland\Woketo\Rfc6455; |
|
12
|
|
|
|
|
13
|
|
|
use Nekland\Tools\StringTools; |
|
14
|
|
|
use Nekland\Woketo\Exception\Frame\IncoherentDataException; |
|
15
|
|
|
use Nekland\Woketo\Exception\Frame\IncompleteFrameException; |
|
16
|
|
|
use Nekland\Woketo\Exception\Frame\ProtocolErrorException; |
|
17
|
|
|
use Nekland\Woketo\Exception\LimitationException; |
|
18
|
|
|
use Nekland\Woketo\Rfc6455\MessageHandler\Rfc6455MessageHandlerInterface; |
|
19
|
|
|
use React\Socket\ConnectionInterface; |
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* Class MessageProcessor |
|
23
|
|
|
* |
|
24
|
|
|
* This class is only a helper for Connection to avoid having so much instances of classes in memory. |
|
25
|
|
|
* Using it like that allow us to have only one instance of MessageProcessor. |
|
26
|
|
|
*/ |
|
27
|
|
|
class MessageProcessor |
|
28
|
|
|
{ |
|
29
|
|
|
/** |
|
30
|
|
|
* @var FrameFactory |
|
31
|
|
|
*/ |
|
32
|
|
|
private $frameFactory; |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* @var Rfc6455MessageHandlerInterface[] |
|
36
|
|
|
*/ |
|
37
|
|
|
private $handlers; |
|
38
|
|
|
|
|
39
|
11 |
|
public function __construct(FrameFactory $factory = null) |
|
40
|
|
|
{ |
|
41
|
11 |
|
$this->frameFactory = $factory ?: new FrameFactory(); |
|
42
|
11 |
|
$this->handlers = []; |
|
43
|
11 |
|
} |
|
44
|
|
|
|
|
45
|
|
|
/** |
|
46
|
|
|
* This methods process data received from the socket to generate a `Message` entity and/or process handler |
|
47
|
|
|
* which may answer to some special frames. |
|
48
|
|
|
* |
|
49
|
|
|
* (binary data entry string in {}, frames in || and messages (of potentially many frames) in []) |
|
50
|
|
|
* This method buffer in many ways: |
|
51
|
|
|
* |
|
52
|
|
|
* - { [|frame1 (not final) |, |frame2 (final)|] } |
|
53
|
|
|
* => buffer 2 frames from 1 binary to generate 1 message |
|
54
|
|
|
* |
|
55
|
|
|
* - { [|frame1 (not final, not finished } { frame 1 (not final, finished)| } { |frame 2 (final)|] } |
|
56
|
|
|
* => buffer 2 frames from 3 binary data to generate 1 message |
|
57
|
|
|
* |
|
58
|
|
|
* |
|
59
|
|
|
* TODO: refactor this part that is far to complicated to be understanding by normal humans. |
|
60
|
|
|
* |
|
61
|
|
|
* @param string $data |
|
62
|
|
|
* @param ConnectionInterface $socket |
|
63
|
|
|
* @param Message|null $message |
|
64
|
|
|
* @return \Generator |
|
65
|
|
|
*/ |
|
66
|
9 |
|
public function onData(string $data, ConnectionInterface $socket, Message $message = null) |
|
67
|
|
|
{ |
|
68
|
|
|
do { |
|
69
|
9 |
|
if (null === $message) { |
|
70
|
9 |
|
$message = new Message(); |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
try { |
|
74
|
9 |
|
$data = $message->addData($data); |
|
75
|
|
|
|
|
76
|
|
|
// Loop that build message if the message is in many frames in the same data binary frame received. |
|
77
|
|
|
do { |
|
78
|
|
|
try { |
|
79
|
6 |
|
$message->addBuffer($data); |
|
80
|
6 |
|
$frame = new Frame($message->getBuffer()); |
|
81
|
|
|
|
|
82
|
2 |
|
if ($frame->isControlFrame()) { |
|
83
|
|
|
$controlFrameMessage = new Message(); |
|
84
|
|
|
$controlFrameMessage->addFrame($frame); |
|
85
|
|
|
$this->processHelper($controlFrameMessage, $socket); |
|
86
|
|
|
|
|
87
|
|
|
yield $controlFrameMessage; // Because every message should be return ! |
|
88
|
|
|
} else { |
|
89
|
2 |
|
$message->addFrame($frame); |
|
90
|
|
|
|
|
91
|
|
|
// If the frame is a success maybe we still need to create messages |
|
92
|
|
|
$data = StringTools::removeStart($data, $frame->getRawData(), '8bit'); |
|
93
|
|
|
} |
|
94
|
6 |
|
} catch (IncompleteFrameException $e) { |
|
95
|
|
|
// Data is now stored in the message, let's clean the variable to stop both loops. |
|
96
|
4 |
|
$data = null; |
|
97
|
|
|
} |
|
98
|
4 |
|
} while(!$message->isComplete() && !empty($data)); |
|
99
|
|
|
|
|
100
|
4 |
|
if ($message->isComplete()) { |
|
101
|
4 |
|
$this->processHelper($message, $socket); |
|
102
|
|
|
|
|
103
|
4 |
|
yield $message; |
|
104
|
4 |
|
$message = null; |
|
105
|
|
|
} else { |
|
106
|
4 |
|
yield $message; |
|
107
|
|
|
} |
|
108
|
5 |
|
} catch (IncoherentDataException $e) { |
|
109
|
1 |
|
$this->write($this->frameFactory->createCloseFrame(Frame::CLOSE_INCOHERENT_DATA), $socket); |
|
110
|
1 |
|
$socket->end(); |
|
111
|
1 |
|
$data = ''; |
|
112
|
4 |
|
} catch (ProtocolErrorException $e) { |
|
113
|
1 |
|
$this->write($this->frameFactory->createCloseFrame(Frame::CLOSE_PROTOCOL_ERROR), $socket); |
|
114
|
1 |
|
$socket->end(); |
|
115
|
1 |
|
$data = ''; |
|
116
|
3 |
|
} catch (LimitationException $e) { |
|
117
|
1 |
|
$this->write($this->frameFactory->createCloseFrame(Frame::CLOSE_TOO_BIG_TO_PROCESS), $socket); |
|
118
|
1 |
|
$socket->end(); |
|
119
|
1 |
|
$data = ''; |
|
120
|
|
|
} |
|
121
|
7 |
|
} while(!empty($data)); |
|
122
|
7 |
|
} |
|
123
|
|
|
|
|
124
|
|
|
/** |
|
125
|
|
|
* @param Message $message |
|
126
|
|
|
* @param ConnectionInterface $socket |
|
127
|
|
|
*/ |
|
128
|
4 |
|
protected function processHelper(Message $message, ConnectionInterface $socket) |
|
129
|
|
|
{ |
|
130
|
4 |
|
foreach ($this->handlers as $handler) { |
|
131
|
1 |
|
if ($handler->supports($message)) { |
|
132
|
1 |
|
$handler->process($message, $this, $socket); |
|
133
|
|
|
} |
|
134
|
|
|
} |
|
135
|
4 |
|
} |
|
136
|
|
|
|
|
137
|
|
|
/** |
|
138
|
|
|
* @param Rfc6455MessageHandlerInterface $handler |
|
139
|
|
|
* @return self |
|
140
|
|
|
*/ |
|
141
|
2 |
|
public function addHandler(Rfc6455MessageHandlerInterface $handler) |
|
142
|
|
|
{ |
|
143
|
2 |
|
$this->handlers[] = $handler; |
|
144
|
|
|
|
|
145
|
2 |
|
return $this; |
|
146
|
|
|
} |
|
147
|
|
|
|
|
148
|
|
|
/** |
|
149
|
|
|
* @param Frame|string $frame |
|
150
|
|
|
* @param ConnectionInterface $socket |
|
151
|
|
|
* @param int $opCode An int representing binary or text data (const of Frame class) |
|
152
|
|
|
*/ |
|
153
|
5 |
|
public function write($frame, ConnectionInterface $socket, int $opCode = Frame::OP_TEXT) |
|
154
|
|
|
{ |
|
155
|
5 |
|
if (!$frame instanceof Frame) { |
|
156
|
1 |
|
$data = $frame; |
|
157
|
1 |
|
$frame = new Frame(); |
|
158
|
1 |
|
$frame->setPayload($data); |
|
159
|
1 |
|
$frame->setOpcode($opCode); |
|
160
|
|
|
} |
|
161
|
|
|
|
|
162
|
5 |
|
$socket->write($frame->getRawData()); |
|
163
|
5 |
|
} |
|
164
|
|
|
|
|
165
|
|
|
/** |
|
166
|
|
|
* @return FrameFactory |
|
167
|
|
|
*/ |
|
168
|
1 |
|
public function getFrameFactory(): FrameFactory |
|
169
|
|
|
{ |
|
170
|
1 |
|
return $this->frameFactory; |
|
171
|
|
|
} |
|
172
|
|
|
|
|
173
|
|
|
/** |
|
174
|
|
|
* @param ConnectionInterface $socket |
|
175
|
|
|
*/ |
|
176
|
|
|
public function timeout(ConnectionInterface $socket) |
|
177
|
|
|
{ |
|
178
|
|
|
$this->write($this->frameFactory->createCloseFrame(Frame::CLOSE_PROTOCOL_ERROR), $socket); |
|
179
|
|
|
$socket->close(); |
|
180
|
|
|
} |
|
181
|
|
|
|
|
182
|
|
|
/** |
|
183
|
|
|
* @param ConnectionInterface $socket |
|
184
|
|
|
*/ |
|
185
|
|
|
public function close(ConnectionInterface $socket) |
|
186
|
|
|
{ |
|
187
|
|
|
$this->write($this->frameFactory->createCloseFrame(), $socket); |
|
188
|
|
|
} |
|
189
|
|
|
} |
|
190
|
|
|
|
Nekland /
Woketo
