1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* This file is part of the PHP Generics package. |
4
|
|
|
* |
5
|
|
|
* @package Generics |
6
|
|
|
*/ |
7
|
|
|
namespace Generics\Socket; |
8
|
|
|
|
9
|
|
|
use Composer\CaBundle\CaBundle; |
10
|
|
|
use Generics\ResetException; |
11
|
|
|
use Generics\Streams\SocketStream; |
12
|
|
|
use Countable; |
13
|
|
|
use Exception; |
14
|
|
|
|
15
|
|
|
/** |
16
|
|
|
* This abstract class provides basic secure socket functionality |
17
|
|
|
* |
18
|
|
|
* @author Maik Greubel <[email protected]> |
19
|
|
|
*/ |
20
|
|
|
abstract class SecureSocket implements SocketStream |
21
|
|
|
{ |
22
|
|
|
|
23
|
|
|
/** |
24
|
|
|
* The socket handle |
25
|
|
|
* |
26
|
|
|
* @var resource |
27
|
|
|
*/ |
28
|
|
|
protected $handle; |
29
|
|
|
|
30
|
|
|
/** |
31
|
|
|
* The socket endpoint |
32
|
|
|
* |
33
|
|
|
* @var Endpoint |
34
|
|
|
*/ |
35
|
|
|
protected $endpoint; |
36
|
|
|
|
37
|
|
|
/** |
38
|
|
|
* The stream context |
39
|
|
|
* |
40
|
|
|
* @var resource |
41
|
|
|
*/ |
42
|
|
|
private $streamContext; |
43
|
|
|
|
44
|
|
|
/** |
45
|
|
|
* Create a new socket |
46
|
|
|
* |
47
|
|
|
* @param Endpoint $endpoint |
48
|
|
|
* The endpoint for the socket |
49
|
|
|
*/ |
50
|
12 |
|
public function __construct(Endpoint $endpoint) |
51
|
|
|
{ |
52
|
12 |
|
$this->endpoint = $endpoint; |
53
|
12 |
|
$this->open(); |
54
|
12 |
|
} |
55
|
|
|
|
56
|
|
|
/** |
57
|
|
|
* |
58
|
|
|
* {@inheritdoc} |
59
|
|
|
* @see \Generics\Streams\InputStream::read() |
60
|
|
|
*/ |
61
|
9 |
|
public function read($length = 1, $offset = null): string |
62
|
|
|
{ |
63
|
9 |
|
return stream_get_contents($this->handle, $length, $offset === null ? - 1 : intval($offset)); |
64
|
|
|
} |
65
|
|
|
|
66
|
|
|
/** |
67
|
|
|
* |
68
|
|
|
* {@inheritdoc} |
69
|
|
|
* @see \Generics\Streams\Stream::isOpen() |
70
|
|
|
*/ |
71
|
|
|
public function isOpen(): bool |
72
|
|
|
{ |
73
|
|
|
return is_resource($this->handle) && ! feof($this->handle); |
74
|
|
|
} |
75
|
|
|
|
76
|
|
|
/** |
77
|
|
|
* |
78
|
|
|
* {@inheritdoc} |
79
|
|
|
* @see \Generics\Streams\OutputStream::flush() |
80
|
|
|
*/ |
81
|
|
|
public function flush() |
82
|
|
|
{ |
83
|
|
|
// flush not available on streams |
84
|
|
|
} |
85
|
|
|
|
86
|
|
|
/** |
87
|
|
|
* |
88
|
|
|
* {@inheritdoc} |
89
|
|
|
* @see \Generics\Streams\Stream::ready() |
90
|
|
|
*/ |
91
|
10 |
View Code Duplication |
public function ready(): bool |
92
|
|
|
{ |
93
|
10 |
|
if (! is_resource($this->handle)) { |
94
|
|
|
return false; |
95
|
|
|
} |
96
|
|
|
|
97
|
|
|
$read = array( |
98
|
10 |
|
$this->handle |
99
|
|
|
); |
100
|
10 |
|
$write = null; |
101
|
10 |
|
$except = null; |
102
|
|
|
|
103
|
10 |
|
$num = @stream_select($read, $write, $except, 0); |
104
|
|
|
|
105
|
10 |
|
if ($num === false) { |
106
|
|
|
throw new SocketException("Could not determine the stream client status"); |
107
|
|
|
} |
108
|
|
|
|
109
|
10 |
|
if ($num < 1) { |
110
|
10 |
|
return false; |
111
|
|
|
} |
112
|
|
|
|
113
|
9 |
|
if (! in_array($this->handle, $read)) { |
114
|
|
|
return false; |
115
|
|
|
} |
116
|
|
|
|
117
|
9 |
|
return true; |
118
|
|
|
} |
119
|
|
|
|
120
|
|
|
/** |
121
|
|
|
* |
122
|
|
|
* {@inheritdoc} |
123
|
|
|
* @see Countable::count() |
124
|
|
|
*/ |
125
|
|
|
public function count() |
126
|
|
|
{ |
127
|
|
|
$meta = stream_get_meta_data($this->handle); |
128
|
|
|
|
129
|
|
|
foreach ($meta as $data) { |
130
|
|
|
if (strstr($data, 'Content-Length:')) { |
131
|
|
|
return intval(trim(substr($data, 15))); |
132
|
|
|
} |
133
|
|
|
} |
134
|
|
|
throw new SocketException("Cannot count elements of stream client"); |
135
|
|
|
} |
136
|
|
|
|
137
|
|
|
/** |
138
|
|
|
* |
139
|
|
|
* {@inheritdoc} |
140
|
|
|
* @see \Generics\Resettable::reset() |
141
|
|
|
*/ |
142
|
|
View Code Duplication |
public function reset() |
143
|
|
|
{ |
144
|
|
|
try { |
145
|
|
|
$this->close(); |
146
|
|
|
$this->open(); |
147
|
|
|
} catch (Exception $ex) { |
148
|
|
|
throw new ResetException($ex->getMessage(), array(), $ex->getCode(), $ex); |
149
|
|
|
} |
150
|
|
|
} |
151
|
|
|
|
152
|
|
|
/** |
153
|
|
|
* |
154
|
|
|
* {@inheritdoc} |
155
|
|
|
* @see \Generics\Streams\Stream::close() |
156
|
|
|
*/ |
157
|
6 |
|
public function close() |
158
|
|
|
{ |
159
|
6 |
|
if (is_resource($this->handle)) { |
160
|
6 |
|
fclose($this->handle); |
161
|
6 |
|
$this->handle = null; |
162
|
|
|
} |
163
|
6 |
|
} |
164
|
|
|
|
165
|
|
|
/** |
166
|
|
|
* |
167
|
|
|
* {@inheritdoc} |
168
|
|
|
* @see \Generics\Streams\OutputStream::write() |
169
|
|
|
*/ |
170
|
11 |
|
public function write($buffer) |
171
|
|
|
{ |
172
|
11 |
|
if (!$this->isWriteable()) { |
173
|
1 |
|
throw new SocketException("Stream is not ready for writing"); |
174
|
|
|
} |
175
|
10 |
|
$len = strlen($buffer); |
176
|
10 |
|
$written = 0; |
177
|
|
|
do { |
178
|
10 |
|
$bytes = fwrite($this->handle, $buffer); |
179
|
10 |
|
if ($bytes === false) { |
180
|
|
|
throw new SocketException("Could not write {len} bytes to stream (at least {written} written)", array( |
181
|
|
|
'len' => $len, |
182
|
|
|
'written' => $written |
183
|
|
|
)); |
184
|
|
|
} |
185
|
10 |
|
$written += $bytes; |
186
|
10 |
|
} while ($written != $len); |
187
|
10 |
|
} |
188
|
|
|
|
189
|
|
|
/** |
190
|
|
|
* |
191
|
|
|
* {@inheritdoc} |
192
|
|
|
* @see \Generics\Streams\OutputStream::isWriteable() |
193
|
|
|
*/ |
194
|
11 |
View Code Duplication |
public function isWriteable(): bool |
195
|
|
|
{ |
196
|
11 |
|
if (! is_resource($this->handle)) { |
197
|
1 |
|
return false; |
198
|
|
|
} |
199
|
|
|
|
200
|
10 |
|
$read = null; |
201
|
|
|
$write = array( |
202
|
10 |
|
$this->handle |
203
|
|
|
); |
204
|
10 |
|
$except = null; |
205
|
|
|
|
206
|
10 |
|
$num = @stream_select($read, $write, $except, 0, 0); |
207
|
|
|
|
208
|
10 |
|
if ($num === false) { |
209
|
|
|
throw new SocketException("Could not determine the stream client status"); |
210
|
|
|
} |
211
|
|
|
|
212
|
10 |
|
if ($num < 1) { |
213
|
|
|
return false; |
214
|
|
|
} |
215
|
|
|
|
216
|
10 |
|
if (! in_array($this->handle, $write)) { |
217
|
|
|
return false; |
218
|
|
|
} |
219
|
|
|
|
220
|
10 |
|
return true; |
221
|
|
|
} |
222
|
|
|
|
223
|
12 |
|
private function open() |
224
|
|
|
{ |
225
|
12 |
|
$this->prepareStreamContext(); |
226
|
|
|
|
227
|
12 |
|
$this->handle = stream_socket_client( |
228
|
12 |
|
sprintf('ssl://%s:%d', $this->endpoint->getAddress(), $this->endpoint->getPort()), // |
229
|
12 |
|
$error, |
230
|
12 |
|
$errorString, |
231
|
12 |
|
2, |
232
|
12 |
|
STREAM_CLIENT_CONNECT, |
233
|
12 |
|
$this->streamContext |
234
|
|
|
); |
235
|
|
|
|
236
|
12 |
|
if ($error > 0) { |
237
|
|
|
throw new SocketException($errorString, array(), $error); |
238
|
|
|
} |
239
|
12 |
|
} |
240
|
|
|
|
241
|
12 |
|
private function prepareStreamContext() |
242
|
|
|
{ |
243
|
|
|
$opts = array( |
244
|
12 |
|
'http' => array( |
245
|
|
|
'method' => "GET" |
246
|
|
|
) |
247
|
|
|
); |
248
|
|
|
|
249
|
12 |
|
$caPath = CaBundle::getSystemCaRootBundlePath(); |
250
|
|
|
|
251
|
12 |
|
if (is_dir($caPath)) { |
252
|
|
|
$opts['ssl']['capath'] = $caPath; |
253
|
|
|
} else { |
254
|
12 |
|
$opts['ssl']['cafile'] = $caPath; |
255
|
|
|
} |
256
|
|
|
|
257
|
12 |
|
$this->streamContext = stream_context_create($opts); |
258
|
12 |
|
} |
259
|
|
|
|
260
|
|
|
/** |
261
|
|
|
* Retrieve end point object |
262
|
|
|
* |
263
|
|
|
* @return Endpoint |
264
|
|
|
*/ |
265
|
11 |
|
public function getEndPoint(): Endpoint |
266
|
|
|
{ |
267
|
11 |
|
return $this->endpoint; |
268
|
|
|
} |
269
|
|
|
} |
270
|
|
|
|