|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace SwooleTW\Http\Websocket\SocketIO; |
|
4
|
|
|
|
|
5
|
|
|
/** |
|
6
|
|
|
* Class Packet |
|
7
|
|
|
*/ |
|
8
|
|
|
class Packet |
|
9
|
|
|
{ |
|
10
|
|
|
/** |
|
11
|
|
|
* Socket.io packet type `open`. |
|
12
|
|
|
*/ |
|
13
|
|
|
const OPEN = 0; |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* Socket.io packet type `close`. |
|
17
|
|
|
*/ |
|
18
|
|
|
const CLOSE = 1; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* Socket.io packet type `ping`. |
|
22
|
|
|
*/ |
|
23
|
|
|
const PING = 2; |
|
24
|
|
|
|
|
25
|
|
|
/** |
|
26
|
|
|
* Socket.io packet type `pong`. |
|
27
|
|
|
*/ |
|
28
|
|
|
const PONG = 3; |
|
29
|
|
|
|
|
30
|
|
|
/** |
|
31
|
|
|
* Socket.io packet type `message`. |
|
32
|
|
|
*/ |
|
33
|
|
|
const MESSAGE = 4; |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* Socket.io packet type 'upgrade' |
|
37
|
|
|
*/ |
|
38
|
|
|
const UPGRADE = 5; |
|
39
|
|
|
|
|
40
|
|
|
/** |
|
41
|
|
|
* Socket.io packet type `noop`. |
|
42
|
|
|
*/ |
|
43
|
|
|
const NOOP = 6; |
|
44
|
|
|
|
|
45
|
|
|
/** |
|
46
|
|
|
* Engine.io packet type `connect`. |
|
47
|
|
|
*/ |
|
48
|
|
|
const CONNECT = 0; |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* Engine.io packet type `disconnect`. |
|
52
|
|
|
*/ |
|
53
|
|
|
const DISCONNECT = 1; |
|
54
|
|
|
|
|
55
|
|
|
/** |
|
56
|
|
|
* Engine.io packet type `event`. |
|
57
|
|
|
*/ |
|
58
|
|
|
const EVENT = 2; |
|
59
|
|
|
|
|
60
|
|
|
/** |
|
61
|
|
|
* Engine.io packet type `ack`. |
|
62
|
|
|
*/ |
|
63
|
|
|
const ACK = 3; |
|
64
|
|
|
|
|
65
|
|
|
/** |
|
66
|
|
|
* Engine.io packet type `error`. |
|
67
|
|
|
*/ |
|
68
|
|
|
const ERROR = 4; |
|
69
|
|
|
|
|
70
|
|
|
/** |
|
71
|
|
|
* Engine.io packet type 'binary event' |
|
72
|
|
|
*/ |
|
73
|
|
|
const BINARY_EVENT = 5; |
|
74
|
|
|
|
|
75
|
|
|
/** |
|
76
|
|
|
* Engine.io packet type `binary ack`. For acks with binary arguments. |
|
77
|
|
|
*/ |
|
78
|
|
|
const BINARY_ACK = 6; |
|
79
|
|
|
|
|
80
|
|
|
/** |
|
81
|
|
|
* Socket.io packet types. |
|
82
|
|
|
*/ |
|
83
|
|
|
public static $socketTypes = [ |
|
84
|
|
|
0 => 'OPEN', |
|
85
|
|
|
1 => 'CLOSE', |
|
86
|
|
|
2 => 'PING', |
|
87
|
|
|
3 => 'PONG', |
|
88
|
|
|
4 => 'MESSAGE', |
|
89
|
|
|
5 => 'UPGRADE', |
|
90
|
|
|
6 => 'NOOP', |
|
91
|
|
|
]; |
|
92
|
|
|
|
|
93
|
|
|
/** |
|
94
|
|
|
* Engine.io packet types. |
|
95
|
|
|
*/ |
|
96
|
|
|
public static $engineTypes = [ |
|
97
|
|
|
0 => 'CONNECT', |
|
98
|
|
|
1 => 'DISCONNECT', |
|
99
|
|
|
2 => 'EVENT', |
|
100
|
|
|
3 => 'ACK', |
|
101
|
|
|
4 => 'ERROR', |
|
102
|
|
|
5 => 'BINARY_EVENT', |
|
103
|
|
|
6 => 'BINARY_ACK', |
|
104
|
|
|
]; |
|
105
|
|
|
|
|
106
|
|
|
/** |
|
107
|
|
|
* Get socket packet type of a raw payload. |
|
108
|
|
|
* |
|
109
|
|
|
* @param string $packet |
|
110
|
|
|
* |
|
111
|
|
|
* @return int|null |
|
112
|
|
|
*/ |
|
113
|
|
|
public static function getSocketType(string $packet) |
|
114
|
|
|
{ |
|
115
|
|
|
$type = $packet[0] ?? null; |
|
116
|
|
|
|
|
117
|
|
|
if (! array_key_exists($type, static::$socketTypes)) { |
|
118
|
|
|
return null; |
|
119
|
|
|
} |
|
120
|
|
|
|
|
121
|
|
|
return (int) $type; |
|
122
|
|
|
} |
|
123
|
|
|
|
|
124
|
|
|
/** |
|
125
|
|
|
* Get data packet from a raw payload. |
|
126
|
|
|
* |
|
127
|
|
|
* @param string $packet |
|
128
|
|
|
* |
|
129
|
|
|
* @return array|null |
|
130
|
|
|
*/ |
|
131
|
|
|
public static function getPayload(string $packet) |
|
132
|
|
|
{ |
|
133
|
|
|
$packet = trim($packet); |
|
134
|
|
|
$start = strpos($packet, '['); |
|
135
|
|
|
|
|
136
|
|
|
if ($start === false || substr($packet, -1) !== ']') { |
|
137
|
|
|
return null; |
|
138
|
|
|
} |
|
139
|
|
|
|
|
140
|
|
|
$data = substr($packet, $start, strlen($packet) - $start); |
|
141
|
|
|
$data = json_decode($data, true); |
|
142
|
|
|
|
|
143
|
|
|
if (is_null($data)) { |
|
144
|
|
|
return null; |
|
145
|
|
|
} |
|
146
|
|
|
|
|
147
|
|
|
return [ |
|
148
|
|
|
'event' => $data[0], |
|
149
|
|
|
'data' => $data[1] ?? null, |
|
150
|
|
|
]; |
|
151
|
|
|
} |
|
152
|
|
|
|
|
153
|
|
|
/** |
|
154
|
|
|
* Return if a socket packet belongs to specific type. |
|
155
|
|
|
* |
|
156
|
|
|
* @param $packet |
|
157
|
|
|
* @param string $typeName |
|
158
|
|
|
* |
|
159
|
|
|
* @return bool |
|
160
|
|
|
*/ |
|
161
|
|
|
public static function isSocketType($packet, string $typeName) |
|
162
|
|
|
{ |
|
163
|
|
|
$type = array_search(strtoupper($typeName), static::$socketTypes); |
|
164
|
|
|
|
|
165
|
|
|
if ($type === false) { |
|
166
|
|
|
return false; |
|
167
|
|
|
} |
|
168
|
|
|
|
|
169
|
|
|
return static::getSocketType($packet) === $type; |
|
170
|
|
|
} |
|
171
|
|
|
} |
swooletw /
laravel-swoole
