depicter / modules / GuzzleHttp / Psr7 / StreamWrapper.php

StreamWrapper.php in Depicter — Popup & Slider Builder 1.3.2, at modules/GuzzleHttp/Psr7/StreamWrapper.php

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1	<?php
2
3	namespace Depicter\GuzzleHttp\Psr7;
4
5	use Depicter\Psr\Http\Message\StreamInterface;
6
7	/**
8	* Converts Guzzle streams into PHP stream resources.
9	*
10	* @final
11	*/
12	class StreamWrapper
13	{
14	/** @var resource */
15	public $context;
16
17	/** @var StreamInterface */
18	private $stream;
19
20	/** @var string r, r+, or w */
21	private $mode;
22
23	/**
24	* Returns a resource representing the stream.
25	*
26	* @param StreamInterface $stream The stream to get a resource for
27	*
28	* @return resource
29	*
30	* @throws \InvalidArgumentException if stream is not readable or writable
31	*/
32	public static function getResource(StreamInterface $stream)
33	{
34	self::register();
35
36	if ($stream->isReadable()) {
37	$mode = $stream->isWritable() ? 'r+' : 'r';
38	} elseif ($stream->isWritable()) {
39	$mode = 'w';
40	} else {
41	throw new \InvalidArgumentException('The stream must be readable, '
42	. 'writable, or both.');
43	}
44
45	return fopen('guzzle://stream', $mode, null, self::createStreamContext($stream));
46	}
47
48	/**
49	* Creates a stream context that can be used to open a stream as a php stream resource.
50	*
51	* @param StreamInterface $stream
52	*
53	* @return resource
54	*/
55	public static function createStreamContext(StreamInterface $stream)
56	{
57	return stream_context_create([
58	'guzzle' => ['stream' => $stream]
59	]);
60	}
61
62	/**
63	* Registers the stream wrapper if needed
64	*/
65	public static function register()
66	{
67	if (!in_array('guzzle', stream_get_wrappers())) {
68	stream_wrapper_register('guzzle', __CLASS__);
69	}
70	}
71
72	public function stream_open($path, $mode, $options, &$opened_path)
73	{
74	$options = stream_context_get_options($this->context);
75
76	if (!isset($options['guzzle']['stream'])) {
77	return false;
78	}
79
80	$this->mode = $mode;
81	$this->stream = $options['guzzle']['stream'];
82
83	return true;
84	}
85
86	public function stream_read($count)
87	{
88	return $this->stream->read($count);
89	}
90
91	public function stream_write($data)
92	{
93	return (int) $this->stream->write($data);
94	}
95
96	public function stream_tell()
97	{
98	return $this->stream->tell();
99	}
100
101	public function stream_eof()
102	{
103	return $this->stream->eof();
104	}
105
106	public function stream_seek($offset, $whence)
107	{
108	$this->stream->seek($offset, $whence);
109
110	return true;
111	}
112
113	public function stream_cast($cast_as)
114	{
115	$stream = clone($this->stream);
116
117	return $stream->detach();
118	}
119
120	public function stream_stat()
121	{
122	static $modeMap = [
123	'r' => 33060,
124	'rb' => 33060,
125	'r+' => 33206,
126	'w' => 33188,
127	'wb' => 33188
128	];
129
130	return [
131	'dev' => 0,
132	'ino' => 0,
133	'mode' => $modeMap[$this->mode],
134	'nlink' => 0,
135	'uid' => 0,
136	'gid' => 0,
137	'rdev' => 0,
138	'size' => $this->stream->getSize() ?: 0,
139	'atime' => 0,
140	'mtime' => 0,
141	'ctime' => 0,
142	'blksize' => 0,
143	'blocks' => 0
144	];
145	}
146
147	public function url_stat($path, $flags)
148	{
149	return [
150	'dev' => 0,
151	'ino' => 0,
152	'mode' => 0,
153	'nlink' => 0,
154	'uid' => 0,
155	'gid' => 0,
156	'rdev' => 0,
157	'size' => 0,
158	'atime' => 0,
159	'mtime' => 0,
160	'ctime' => 0,
161	'blksize' => 0,
162	'blocks' => 0
163	];
164	}
165	}
166