1 | <?php |
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2 | |||
3 | /** |
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4 | * Handles thumbnails |
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5 | * |
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6 | * @author Sam Stenvall <[email protected]> |
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7 | * @copyright Copyright © Sam Stenvall 2013- |
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8 | * @license https://www.gnu.org/licenses/gpl.html The GNU General Public License v3.0 |
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9 | */ |
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10 | class ThumbnailController extends Controller |
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11 | { |
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12 | |||
13 | /** |
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14 | * Disable all default filters (including authentication) since the generate action |
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15 | * may be called from e.g. a media player which naturally isn't |
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16 | * authenticated |
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17 | * @return array the filters for this controller |
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18 | */ |
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19 | public function filters() |
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20 | { |
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21 | return array('releaseSessionLock'); |
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22 | } |
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23 | |||
24 | /** |
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25 | * Generates a thumbnail for the specified image path and size, then serves |
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26 | * it to the browser. The next time the same thumbnail is rendered its URL |
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27 | * will point to the generated image instead of this action. |
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28 | * @see Thumbnail |
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29 | * @param string $path the thumbnail path |
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30 | * @param int $size the thumbnail size |
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31 | * @throws PageNotFoundException if the image could not be generated |
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32 | */ |
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33 | public function actionGenerate($path, $size) |
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34 | { |
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35 | $thumbnail = new Thumbnail($path, $size); |
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36 | $thumbnail->generate(); |
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37 | |||
38 | $path = $thumbnail->getPath(); |
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39 | |||
40 | if ($path === false) |
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41 | throw new PageNotFoundException(); |
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42 | |||
43 | header('Content-Type: '.CFileHelper::getMimeType($path)); |
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44 | readfile($path); |
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45 | exit; |
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46 | } |
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47 | |||
48 | } |
In general, usage of exit should be done with care and only when running in a scripting context like a CLI script.