[7265] | 1 | <?php |
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| 2 | |
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| 3 | /* |
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| 4 | * This file is part of the Assetic package, an OpenSky project. |
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| 5 | * |
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| 6 | * (c) 2010-2012 OpenSky Project Inc |
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| 7 | * |
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| 8 | * For the full copyright and license information, please view the LICENSE |
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| 9 | * file that was distributed with this source code. |
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| 10 | */ |
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| 11 | |
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| 12 | namespace Assetic\Filter; |
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| 13 | |
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| 14 | use Assetic\Asset\AssetInterface; |
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| 15 | use Assetic\Exception\FilterException; |
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| 16 | use Symfony\Component\Process\ProcessBuilder; |
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| 17 | |
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| 18 | /** |
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| 19 | * Runs assets through OptiPNG. |
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| 20 | * |
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| 21 | * @link http://optipng.sourceforge.net/ |
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| 22 | * @author Kris Wallsmith <kris.wallsmith@gmail.com> |
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| 23 | */ |
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| 24 | class OptiPngFilter implements FilterInterface |
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| 25 | { |
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| 26 | private $optipngBin; |
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| 27 | private $level; |
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| 28 | |
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| 29 | /** |
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| 30 | * Constructor. |
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| 31 | * |
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| 32 | * @param string $optipngBin Path to the optipng binary |
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| 33 | */ |
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| 34 | public function __construct($optipngBin = '/usr/bin/optipng') |
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| 35 | { |
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| 36 | $this->optipngBin = $optipngBin; |
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| 37 | } |
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| 38 | |
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| 39 | public function setLevel($level) |
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| 40 | { |
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| 41 | $this->level = $level; |
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| 42 | } |
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| 43 | |
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| 44 | public function filterLoad(AssetInterface $asset) |
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| 45 | { |
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| 46 | } |
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| 47 | |
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| 48 | public function filterDump(AssetInterface $asset) |
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| 49 | { |
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| 50 | $pb = new ProcessBuilder(array($this->optipngBin)); |
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| 51 | |
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| 52 | if (null !== $this->level) { |
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| 53 | $pb->add('-o')->add($this->level); |
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| 54 | } |
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| 55 | |
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| 56 | $pb->add('-out')->add($output = tempnam(sys_get_temp_dir(), 'assetic_optipng')); |
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| 57 | unlink($output); |
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| 58 | |
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| 59 | $pb->add($input = tempnam(sys_get_temp_dir(), 'assetic_optipng')); |
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| 60 | file_put_contents($input, $asset->getContent()); |
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| 61 | |
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| 62 | $proc = $pb->getProcess(); |
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| 63 | $code = $proc->run(); |
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| 64 | |
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| 65 | if (0 < $code) { |
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| 66 | unlink($input); |
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| 67 | throw FilterException::fromProcess($proc)->setInput($asset->getContent()); |
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| 68 | } |
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| 69 | |
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| 70 | $asset->setContent(file_get_contents($output)); |
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| 71 | |
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| 72 | unlink($input); |
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| 73 | unlink($output); |
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| 74 | } |
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| 75 | } |
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