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1 | <?php |
2 | /** |
3 | * This program is free software; you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by |
5 | * the Free Software Foundation; either version 2 of the License, or |
6 | * (at your option) any later version. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
16 | * http://www.gnu.org/copyleft/gpl.html |
17 | * |
18 | * @file |
19 | */ |
20 | |
21 | use GuzzleHttp\Psr7\StreamDecoratorTrait; |
22 | use GuzzleHttp\Psr7\Utils; |
23 | use Psr\Http\Message\StreamInterface; |
24 | |
25 | /** |
26 | * Callback-aware stream. Allows using a callback function to receive data in contexts where |
27 | * a PSR-7 stream is required. This was created so that GuzzleHttpRequest can support our |
28 | * "callback" option, for backward compatibility. Newer code that uses GuzzleHttpRequest |
29 | * should consider using the "sink" option instead. |
30 | * |
31 | * @internal for use by GuzzleHttpRequest only |
32 | * @since 1.33 |
33 | * @property StreamInterface $stream Defined in StreamDecoratorTrait via `@property`, not read |
34 | * by phan |
35 | */ |
36 | class MWCallbackStream implements StreamInterface { |
37 | use StreamDecoratorTrait; |
38 | |
39 | private $callback; |
40 | |
41 | /** @var StreamInterface */ |
42 | protected $stream; |
43 | |
44 | public function __construct( callable $cb ) { |
45 | $this->stream = Utils::streamFor(); |
46 | $this->callback = $cb; |
47 | } |
48 | |
49 | public function write( $string ) { |
50 | return call_user_func( $this->callback, $this, $string ); |
51 | } |
52 | } |