1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/** |
4
|
|
|
* This file is part of the miBadger package. |
5
|
|
|
* |
6
|
|
|
* @author Michael Webbers <[email protected]> |
7
|
|
|
* @license http://opensource.org/licenses/Apache-2.0 Apache v2 License |
8
|
|
|
* @version 1.0.0 |
9
|
|
|
*/ |
10
|
|
|
|
11
|
|
|
namespace miBadger\Http; |
12
|
|
|
|
13
|
|
|
use Psr\Http\Message\StreamInterface; |
14
|
|
|
|
15
|
|
|
/** |
16
|
|
|
* The stream class |
17
|
|
|
* |
18
|
|
|
* @see http://www.php-fig.org/psr/psr-7/ |
19
|
|
|
* @since 1.0.0 |
20
|
|
|
*/ |
21
|
|
|
class Stream implements StreamInterface |
22
|
|
|
{ |
23
|
|
|
/** @var resource The resource. */ |
24
|
|
|
private $resource; |
25
|
|
|
|
26
|
|
|
/** @var array The metadata. */ |
27
|
|
|
private $metadata; |
28
|
|
|
|
29
|
|
|
/** @var string[] The read modes. */ |
30
|
|
|
private static $readModes = ['r', 'w+', 'r+', 'x+', 'c+', 'rb', 'w+b', 'r+b', 'x+b', 'c+b', 'rt', 'w+t', 'r+t', 'x+t', 'c+t', 'a+']; |
31
|
|
|
|
32
|
|
|
/** @var string[] The write modes. */ |
33
|
|
|
private static $writeModes = ['w', 'w+', 'rw', 'r+', 'x+', 'c+', 'wb', 'w+b', 'r+b', 'x+b', 'c+b', 'w+t', 'r+t', 'x+t', 'c+t', 'a', 'a+']; |
34
|
|
|
|
35
|
|
|
/** |
36
|
|
|
* Construct a Stream object with the given resource. |
37
|
|
|
* |
38
|
|
|
* @param resource $resource |
39
|
|
|
*/ |
40
|
69 |
|
public function __construct($resource) |
41
|
|
|
{ |
42
|
69 |
|
if (!is_resource($resource)) { |
43
|
1 |
|
throw new \InvalidArgumentException('Invalid resource'); |
44
|
|
|
} |
45
|
|
|
|
46
|
69 |
|
$this->resource = $resource; |
47
|
69 |
|
$this->metadata = stream_get_meta_data($resource); |
48
|
69 |
|
} |
49
|
|
|
|
50
|
|
|
/** |
51
|
|
|
* Destruct the Stream object. |
52
|
|
|
*/ |
53
|
6 |
|
public function __destruct() |
54
|
|
|
{ |
55
|
6 |
|
$this->close(); |
56
|
6 |
|
} |
57
|
|
|
|
58
|
|
|
/** |
59
|
|
|
* {@inheritdoc} |
60
|
|
|
*/ |
61
|
4 |
|
public function __toString() |
62
|
|
|
{ |
63
|
|
|
try { |
64
|
4 |
|
$this->seek(0); |
65
|
|
|
|
66
|
2 |
|
return $this->getContents(); |
67
|
2 |
|
} catch (\Exception $e) { |
68
|
2 |
|
return ''; |
69
|
|
|
} |
70
|
|
|
} |
71
|
|
|
|
72
|
|
|
/** |
73
|
|
|
* {@inheritdoc} |
74
|
|
|
*/ |
75
|
7 |
|
public function close() |
76
|
|
|
{ |
77
|
7 |
|
if (isset($this->resource)) { |
78
|
7 |
|
if (is_resource($this->resource)) { |
79
|
7 |
|
fclose($this->resource); |
80
|
7 |
|
} |
81
|
|
|
|
82
|
7 |
|
$this->detach(); |
83
|
7 |
|
} |
84
|
7 |
|
} |
85
|
|
|
|
86
|
|
|
/** |
87
|
|
|
* {@inheritdoc} |
88
|
|
|
*/ |
89
|
13 |
|
public function detach() |
90
|
|
|
{ |
91
|
13 |
|
if (!isset($this->resource)) { |
92
|
1 |
|
return null; |
93
|
|
|
} |
94
|
|
|
|
95
|
13 |
|
$result = $this->resource; |
96
|
13 |
|
unset($this->resource); |
97
|
|
|
|
98
|
13 |
|
return $result; |
99
|
|
|
} |
100
|
|
|
|
101
|
|
|
/** |
102
|
|
|
* {@inheritdoc} |
103
|
|
|
*/ |
104
|
2 |
|
public function getSize() |
105
|
|
|
{ |
106
|
2 |
|
if (!isset($this->resource)) { |
107
|
1 |
|
return null; |
108
|
|
|
} |
109
|
|
|
|
110
|
1 |
|
if ($this->getMetadata('uri')) { |
111
|
1 |
|
clearstatcache(true, $this->getMetadata('uri')); |
112
|
1 |
|
} |
113
|
|
|
|
114
|
1 |
|
$stats = fstat($this->resource); |
115
|
|
|
|
116
|
1 |
|
return isset($stats['size']) ? $stats['size'] : null; |
117
|
|
|
} |
118
|
|
|
|
119
|
|
|
/** |
120
|
|
|
* {@inheritdoc} |
121
|
|
|
*/ |
122
|
2 |
|
public function tell() |
123
|
|
|
{ |
124
|
2 |
|
$result = ftell($this->resource); |
125
|
|
|
|
126
|
2 |
|
if ($result === false) { |
127
|
1 |
|
throw new \RuntimeException('Error while getting the position of the pointer'); |
128
|
|
|
} |
129
|
|
|
|
130
|
1 |
|
return $result; |
131
|
|
|
} |
132
|
|
|
|
133
|
|
|
/** |
134
|
|
|
* {@inheritdoc} |
135
|
|
|
*/ |
136
|
1 |
|
public function eof() |
137
|
|
|
{ |
138
|
1 |
|
return isset($this->resource) && feof($this->resource); |
139
|
|
|
} |
140
|
|
|
|
141
|
|
|
/** |
142
|
|
|
* {@inheritdoc} |
143
|
|
|
*/ |
144
|
9 |
|
public function isSeekable() |
145
|
|
|
{ |
146
|
9 |
|
return isset($this->resource) && $this->getMetadata('seekable'); |
147
|
|
|
} |
148
|
|
|
|
149
|
|
|
/** |
150
|
|
|
* {@inheritdoc} |
151
|
|
|
*/ |
152
|
8 |
|
public function seek($offset, $whence = SEEK_SET) |
153
|
|
|
{ |
154
|
8 |
|
if (!$this->isSeekable()) { |
155
|
3 |
|
throw new \RuntimeException('Stream is not seekable'); |
156
|
|
|
} |
157
|
|
|
|
158
|
5 |
|
if (fseek($this->resource, $offset, $whence) === false) { |
159
|
1 |
|
throw new \RuntimeException('Error while seeking the stream'); |
160
|
|
|
} |
161
|
4 |
|
} |
162
|
|
|
|
163
|
|
|
/** |
164
|
|
|
* {@inheritdoc} |
165
|
|
|
*/ |
166
|
1 |
|
public function rewind() |
167
|
|
|
{ |
168
|
1 |
|
$this->seek(0); |
169
|
1 |
|
} |
170
|
|
|
|
171
|
|
|
/** |
172
|
|
|
* {@inheritdoc} |
173
|
|
|
*/ |
174
|
6 |
|
public function isWritable() |
175
|
|
|
{ |
176
|
6 |
|
return isset($this->resource) && in_array($this->getMetadata('mode'), self::$writeModes); |
177
|
|
|
} |
178
|
|
|
|
179
|
|
|
/** |
180
|
|
|
* {@inheritdoc} |
181
|
|
|
*/ |
182
|
5 |
|
public function write($string) |
183
|
|
|
{ |
184
|
5 |
|
if (!$this->isWritable()) { |
185
|
1 |
|
throw new \RuntimeException('Stream is not writable'); |
186
|
|
|
} |
187
|
|
|
|
188
|
4 |
|
$result = fwrite($this->resource, $string); |
189
|
|
|
|
190
|
4 |
|
if ($result === false) { |
191
|
1 |
|
throw new \RuntimeException('Error while writing the stream'); |
192
|
|
|
} |
193
|
|
|
|
194
|
3 |
|
return $result; |
195
|
|
|
} |
196
|
|
|
|
197
|
|
|
/** |
198
|
|
|
* {@inheritdoc} |
199
|
|
|
*/ |
200
|
8 |
|
public function isReadable() |
201
|
|
|
{ |
202
|
8 |
|
return isset($this->resource) && in_array($this->getMetadata('mode'), self::$readModes); |
203
|
|
|
} |
204
|
|
|
|
205
|
|
|
/** |
206
|
|
|
* {@inheritdoc} |
207
|
|
|
*/ |
208
|
7 |
|
public function read($length) |
209
|
|
|
{ |
210
|
7 |
|
if (!$this->isReadable()) { |
211
|
1 |
|
throw new \RuntimeException('Stream is not readable'); |
212
|
|
|
} |
213
|
|
|
|
214
|
6 |
|
$result = stream_get_contents($this->resource, $length); |
215
|
|
|
|
216
|
6 |
|
if ($result === false) { |
217
|
1 |
|
throw new \RuntimeException('Error while reading the stream'); |
218
|
|
|
} |
219
|
|
|
|
220
|
5 |
|
return $result; |
221
|
|
|
} |
222
|
|
|
|
223
|
|
|
/** |
224
|
|
|
* {@inheritdoc} |
225
|
|
|
*/ |
226
|
4 |
|
public function getContents() |
227
|
|
|
{ |
228
|
4 |
|
return $this->read(-1); |
229
|
|
|
} |
230
|
|
|
|
231
|
|
|
/** |
232
|
|
|
* {@inheritdoc} |
233
|
|
|
*/ |
234
|
17 |
|
public function getMetadata($key = null) |
235
|
|
|
{ |
236
|
17 |
|
if ($key === null) { |
237
|
1 |
|
return $this->metadata; |
238
|
|
|
} |
239
|
|
|
|
240
|
16 |
|
return isset($this->metadata[$key]) ? $this->metadata[$key] : null; |
241
|
|
|
} |
242
|
|
|
} |
243
|
|
|
|