|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types=1); |
|
3
|
|
|
|
|
4
|
|
|
/* |
|
5
|
|
|
* This file is part of the php-gelf package. |
|
6
|
|
|
* |
|
7
|
|
|
* (c) Benjamin Zikarsky <http://benjamin-zikarsky.de> |
|
8
|
|
|
* |
|
9
|
|
|
* For the full copyright and license information, please view the LICENSE |
|
10
|
|
|
* file that was distributed with this source code. |
|
11
|
|
|
*/ |
|
12
|
|
|
|
|
13
|
|
|
namespace Gelf\Transport; |
|
14
|
|
|
|
|
15
|
|
|
use RuntimeException; |
|
16
|
|
|
|
|
17
|
|
|
/** |
|
18
|
|
|
* StreamSocketClient is a very simple OO-Wrapper around the PHP |
|
19
|
|
|
* stream_socket-library and some specific stream-functions like |
|
20
|
|
|
* fwrite, etc. |
|
21
|
|
|
* |
|
22
|
|
|
* @author Benjamin Zikarsky <[email protected]> |
|
23
|
|
|
*/ |
|
24
|
|
|
class StreamSocketClient |
|
25
|
|
|
{ |
|
26
|
|
|
private const DEFAULT_SOCKET_TIMEOUT = 30; |
|
27
|
|
|
|
|
28
|
|
|
private mixed $socket = null; |
|
29
|
|
|
private int $connectTimeout = self::DEFAULT_SOCKET_TIMEOUT; |
|
30
|
|
|
|
|
31
|
|
|
public function __construct( |
|
32
|
|
|
private string $scheme, |
|
33
|
|
|
private string $host, |
|
34
|
|
|
private int $port, |
|
35
|
|
|
private array $context = [] |
|
36
|
|
|
) { |
|
37
|
|
|
} |
|
38
|
|
|
|
|
39
|
|
|
/** |
|
40
|
|
|
* Destructor, closes socket if possible |
|
41
|
|
|
*/ |
|
42
|
|
|
public function __destruct() |
|
43
|
|
|
{ |
|
44
|
|
|
$this->close(); |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
|
|
|
|
48
|
|
|
/** |
|
49
|
|
|
* Internal function mimicking the behaviour of static::initSocket |
|
50
|
|
|
* which will get new functionality instead of the deprecated |
|
51
|
|
|
* "factory" |
|
52
|
|
|
* |
|
53
|
|
|
* @return resource |
|
54
|
|
|
* |
|
55
|
|
|
* @throws RuntimeException on connection-failure |
|
56
|
|
|
*/ |
|
57
|
|
|
private function buildSocket(): mixed |
|
58
|
|
|
{ |
|
59
|
|
|
$socketDescriptor = sprintf( |
|
60
|
|
|
"%s://%s:%d", |
|
61
|
|
|
$this->scheme, |
|
62
|
|
|
$this->host, |
|
63
|
|
|
$this->port |
|
64
|
|
|
); |
|
65
|
|
|
|
|
66
|
|
|
$socket = @stream_socket_client( |
|
67
|
45 |
|
$socketDescriptor, |
|
68
|
|
|
$errNo, |
|
69
|
45 |
|
$errStr, |
|
70
|
45 |
|
$this->connectTimeout, |
|
71
|
45 |
|
\STREAM_CLIENT_CONNECT, |
|
72
|
45 |
|
stream_context_create($this->context) |
|
73
|
45 |
|
); |
|
74
|
|
|
|
|
75
|
|
|
if ($socket === false) { |
|
76
|
|
|
throw new RuntimeException( |
|
77
|
|
|
sprintf( |
|
78
|
33 |
|
"Failed to create socket-client for %s: %s (%s)", |
|
79
|
|
|
$socketDescriptor, |
|
80
|
33 |
|
$errStr, |
|
81
|
33 |
|
$errNo |
|
82
|
|
|
) |
|
83
|
|
|
); |
|
84
|
|
|
} |
|
85
|
|
|
|
|
86
|
|
|
// set non-blocking for UDP |
|
87
|
|
|
if (strcasecmp("udp", $this->scheme) == 0) { |
|
88
|
|
|
stream_set_blocking($socket, true); |
|
89
|
|
|
} |
|
90
|
|
|
|
|
91
|
|
|
return $socket; |
|
92
|
|
|
} |
|
93
|
|
|
|
|
94
|
|
|
/** |
|
95
|
|
|
* Returns raw-socket-resource |
|
96
|
|
|
* |
|
97
|
|
|
* @return resource |
|
98
|
|
|
*/ |
|
99
|
|
|
public function getSocket(): mixed |
|
100
|
|
|
{ |
|
101
|
|
|
// lazy initializing of socket-descriptor |
|
102
|
|
|
if (!$this->socket) { |
|
103
|
|
|
$this->socket = $this->buildSocket(); |
|
104
|
|
|
} |
|
105
|
|
|
|
|
106
|
|
|
return $this->socket; |
|
107
|
|
|
} |
|
108
|
|
|
|
|
109
|
|
|
/** |
|
110
|
|
|
* Writes a given string to the socket and returns the |
|
111
|
|
|
* number of written bytes |
|
112
|
|
|
*/ |
|
113
|
|
|
public function write(string $buffer): int |
|
114
|
|
|
{ |
|
115
|
|
|
$bufLen = strlen($buffer); |
|
116
|
|
|
|
|
117
|
|
|
$socket = $this->getSocket(); |
|
118
|
|
|
$written = 0; |
|
119
|
|
|
|
|
120
|
|
|
while ($written < $bufLen) { |
|
121
|
|
|
// PHP's fwrite does not behave nice in regard to errors, so we wrap |
|
122
|
|
|
// it with a temporary error handler and treat every warning/notice as |
|
123
|
|
|
// an error |
|
124
|
|
|
$failed = false; |
|
125
|
|
|
$errorMessage = "Failed to write to socket"; |
|
126
|
|
|
/** @psalm-suppress InvalidArgument */ |
|
127
|
|
|
set_error_handler(function ($errno, $errstr) use (&$failed, &$errorMessage) { |
|
128
|
|
|
$failed = true; |
|
129
|
|
|
$errorMessage .= ": $errstr ($errno)"; |
|
130
|
|
|
}); |
|
131
|
|
|
$byteCount = fwrite($socket, substr($buffer, $written)); |
|
132
|
|
|
restore_error_handler(); |
|
133
|
|
|
|
|
134
|
|
|
if ($byteCount === 0 && defined('HHVM_VERSION')) { |
|
135
|
|
|
$failed = true; |
|
136
|
|
|
} |
|
137
|
|
|
|
|
138
|
15 |
|
if ($failed || $byteCount === false) { |
|
139
|
|
|
throw new RuntimeException($errorMessage); |
|
140
|
15 |
|
} |
|
141
|
15 |
|
|
|
142
|
15 |
|
$written += $byteCount; |
|
143
|
15 |
|
} |
|
144
|
15 |
|
|
|
145
|
|
|
|
|
146
|
|
|
return $written; |
|
147
|
15 |
|
} |
|
148
|
15 |
|
|
|
149
|
|
|
/** |
|
150
|
|
|
* Reads a given number of bytes from the socket |
|
151
|
15 |
|
*/ |
|
152
|
15 |
|
public function read(int $byteCount): string |
|
153
|
15 |
|
{ |
|
154
|
|
|
return fread($this->getSocket(), $byteCount); |
|
155
|
|
|
} |
|
156
|
15 |
|
|
|
157
|
1 |
|
/** |
|
158
|
|
|
* Closes underlying socket explicitly |
|
159
|
1 |
|
*/ |
|
160
|
|
|
public function close(): void |
|
161
|
|
|
{ |
|
162
|
|
|
if (!is_resource($this->socket)) { |
|
163
|
|
|
return; |
|
164
|
|
|
} |
|
165
|
|
|
|
|
166
|
|
|
fclose($this->socket); |
|
167
|
|
|
$this->socket = null; |
|
168
|
14 |
|
} |
|
169
|
2 |
|
|
|
170
|
|
|
/** |
|
171
|
|
|
* Checks if the socket is closed |
|
172
|
14 |
|
*/ |
|
173
|
|
|
public function isClosed(): bool |
|
174
|
|
|
{ |
|
175
|
|
|
return $this->socket === null; |
|
176
|
|
|
} |
|
177
|
|
|
|
|
178
|
|
|
/** |
|
179
|
|
|
* Returns the current connect-timeout |
|
180
|
15 |
|
*/ |
|
181
|
|
|
public function getConnectTimeout(): int |
|
182
|
|
|
{ |
|
183
|
15 |
|
return $this->connectTimeout; |
|
184
|
15 |
|
} |
|
185
|
|
|
|
|
186
|
|
|
/** |
|
187
|
14 |
|
* Sets the connect-timeout |
|
188
|
|
|
*/ |
|
189
|
|
|
public function setConnectTimeout(int $timeout): void |
|
190
|
|
|
{ |
|
191
|
|
|
if (!$this->isClosed()) { |
|
192
|
|
|
throw new \LogicException("Cannot change socket properties with an open connection"); |
|
193
|
|
|
} |
|
194
|
|
|
|
|
195
|
|
|
$this->connectTimeout = $timeout; |
|
196
|
|
|
} |
|
197
|
|
|
|
|
198
|
|
|
/** |
|
199
|
|
|
* Returns the stream context |
|
200
|
8 |
|
*/ |
|
201
|
|
|
public function getContext(): array |
|
202
|
8 |
|
{ |
|
203
|
8 |
|
return $this->context; |
|
204
|
|
|
} |
|
205
|
8 |
|
|
|
206
|
8 |
|
/** |
|
207
|
|
|
* Sets the stream context |
|
208
|
8 |
|
*/ |
|
209
|
|
|
public function setContext(array $context): void |
|
210
|
|
|
{ |
|
211
|
|
|
if (!$this->isClosed()) { |
|
212
|
8 |
|
throw new \LogicException("Cannot change socket properties with an open connection"); |
|
213
|
8 |
|
} |
|
214
|
|
|
|
|
215
|
1 |
|
$this->context = $context; |
|
216
|
1 |
|
} |
|
217
|
|
|
} |
|
218
|
|
|
|