Generator::getPreview() - Code Metrics - Inspection of "Fix SCSS processing when undoing theming values" - nextcloud/server - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#7756)

by Julius

created 2018-01-09 13:21 UTC

Generator::getPreview() C

↳ Parent: Generator

Complexity

Conditions	9
Paths	22

Size

Total Lines	51
Code Lines	29

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	9
eloc	29
nc	22
nop	6
dl	0
loc	51
rs	6.2727
c	0
b	0
f	0

How to fix Long Method

<?php
/**
 * @copyright Copyright (c) 2016, Roeland Jago Douma <[email protected]>
 *
 * @author Morris Jobke <[email protected]>
 * @author Robin Appelman <[email protected]>
 * @author Roeland Jago Douma <[email protected]>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OC\Preview;

use OCP\Files\File;
use OCP\Files\IAppData;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use OCP\Files\SimpleFS\ISimpleFile;
use OCP\Files\SimpleFS\ISimpleFolder;
use OCP\IConfig;
use OCP\IImage;
use OCP\IPreview;
use OCP\Preview\IProvider;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\EventDispatcher\GenericEvent;

class Generator {

	/** @var IPreview */
	private $previewManager;
	/** @var IConfig */
	private $config;
	/** @var IAppData */
	private $appData;
	/** @var GeneratorHelper */
	private $helper;
	/** @var EventDispatcherInterface */
	private $eventDispatcher;

	/**
	 * @param IConfig $config
	 * @param IPreview $previewManager
	 * @param IAppData $appData
	 * @param GeneratorHelper $helper
	 * @param EventDispatcherInterface $eventDispatcher
	 */
	public function __construct(
		IConfig $config,
		IPreview $previewManager,
		IAppData $appData,
		GeneratorHelper $helper,
		EventDispatcherInterface $eventDispatcher
	) {
		$this->config = $config;
		$this->previewManager = $previewManager;
		$this->appData = $appData;
		$this->helper = $helper;
		$this->eventDispatcher = $eventDispatcher;
	}

	/**
	 * Returns a preview of a file
	 *
	 * The cache is searched first and if nothing usable was found then a preview is
	 * generated by one of the providers
	 *
	 * @param File $file
	 * @param int $width
	 * @param int $height
	 * @param bool $crop
	 * @param string $mode
	 * @param string $mimeType
	 * @return ISimpleFile
	 * @throws NotFoundException
	 * @throws \InvalidArgumentException if the preview would be invalid (in case the original image is invalid)
	 */
	public function getPreview(File $file, $width = -1, $height = -1, $crop = false, $mode = IPreview::MODE_FILL, $mimeType = null) {
		$this->eventDispatcher->dispatch(
			IPreview::EVENT,
			new GenericEvent($file,[
				'width' => $width,
				'height' => $height,
				'crop' => $crop,
				'mode' => $mode
			])
		);

		if ($mimeType === null) {
			$mimeType = $file->getMimeType();
		}
		if (!$this->previewManager->isMimeSupported($mimeType)) {
			throw new NotFoundException();
		}

		$previewFolder = $this->getPreviewFolder($file);

		// Get the max preview and infer the max preview sizes from that
		$maxPreview = $this->getMaxPreview($previewFolder, $file, $mimeType);
		list($maxWidth, $maxHeight) = $this->getPreviewSize($maxPreview);

		// If both width and heigth are -1 we just want the max preview
		if ($width === -1 && $height === -1) {
			$width = $maxWidth;
			$height = $maxHeight;
		}

		// Calculate the preview size
		list($width, $height) = $this->calculateSize($width, $height, $crop, $mode, $maxWidth, $maxHeight);

		// No need to generate a preview that is just the max preview
		if ($width === $maxWidth && $height === $maxHeight) {
			return $maxPreview;
		}

		// Try to get a cached preview. Else generate (and store) one
		try {
			try {
				$file = $this->getCachedPreview($previewFolder, $width, $height, $crop, $maxPreview->getMimeType());
			} catch (NotFoundException $e) {
				$file = $this->generatePreview($previewFolder, $maxPreview, $width, $height, $crop, $maxWidth, $maxHeight);
			}
		} catch (\InvalidArgumentException $e) {
			throw new NotFoundException();
		}

		return $file;
	}

	/**
	 * @param ISimpleFolder $previewFolder
	 * @param File $file
	 * @param string $mimeType
	 * @return ISimpleFile
	 * @throws NotFoundException
	 */
	private function getMaxPreview(ISimpleFolder $previewFolder, File $file, $mimeType) {
		$nodes = $previewFolder->getDirectoryListing();

		foreach ($nodes as $node) {
			if (strpos($node->getName(), 'max')) {
				return $node;
			}
		}

		$previewProviders = $this->previewManager->getProviders();
		foreach ($previewProviders as $supportedMimeType => $providers) {
			if (!preg_match($supportedMimeType, $mimeType)) {
				continue;
			}

			foreach ($providers as $provider) {
				$provider = $this->helper->getProvider($provider);
				if (!($provider instanceof IProvider)) {
					continue;
				}

				$maxWidth = (int)$this->config->getSystemValue('preview_max_x', 4096);
				$maxHeight = (int)$this->config->getSystemValue('preview_max_y', 4096);

				$preview = $this->helper->getThumbnail($provider, $file, $maxWidth, $maxHeight);

				if (!($preview instanceof IImage)) {
					continue;
				}

				// Try to get the extention.
				try {
					$ext = $this->getExtention($preview->dataMimeType());
				} catch (\InvalidArgumentException $e) {
					// Just continue to the next iteration if this preview doesn't have a valid mimetype
					continue;
				}

				$path = (string)$preview->width() . '-' . (string)$preview->height() . '-max.' . $ext;
				try {
					$file = $previewFolder->newFile($path);
					$file->putContent($preview->data());
				} catch (NotPermittedException $e) {
					throw new NotFoundException();
				}

				return $file;
			}
		}

		throw new NotFoundException();
	}

	/**
	 * @param ISimpleFile $file
	 * @return int[]
	 */
	private function getPreviewSize(ISimpleFile $file) {
		$size = explode('-', $file->getName());
		return [(int)$size[0], (int)$size[1]];
	}

	/**
	 * @param int $width
	 * @param int $height
	 * @param bool $crop
	 * @param string $mimeType
	 * @return string
	 */
	private function generatePath($width, $height, $crop, $mimeType) {
		$path = (string)$width . '-' . (string)$height;
		if ($crop) {
			$path .= '-crop';
		}

		$ext = $this->getExtention($mimeType);
		$path .= '.' . $ext;
		return $path;
	}



	/**
	 * @param int $width
	 * @param int $height
	 * @param bool $crop
	 * @param string $mode
	 * @param int $maxWidth
	 * @param int $maxHeight
	 * @return int[]
	 */
	private function calculateSize($width, $height, $crop, $mode, $maxWidth, $maxHeight) {

		/*
		 * If we are not cropping we have to make sure the requested image
		 * respects the aspect ratio of the original.
		 */
		if (!$crop) {
			$ratio = $maxHeight / $maxWidth;

			if ($width === -1) {
				$width = $height / $ratio;
			}
			if ($height === -1) {
				$height = $width * $ratio;
			}

			$ratioH = $height / $maxHeight;
			$ratioW = $width / $maxWidth;

			/*
			 * Fill means that the $height and $width are the max
			 * Cover means min.
			 */
			if ($mode === IPreview::MODE_FILL) {
				if ($ratioH > $ratioW) {
					$height = $width * $ratio;
				} else {
					$width = $height / $ratio;
				}
			} else if ($mode === IPreview::MODE_COVER) {
				if ($ratioH > $ratioW) {
					$width = $height / $ratio;
				} else {
					$height = $width * $ratio;
				}
			}
		}

		if ($height !== $maxHeight && $width !== $maxWidth) {
			/*
			 * Scale to the nearest power of two
			 */
			$pow2height = 2 ** ceil(log($height) / log(2));
			$pow2width = 2 ** ceil(log($width) / log(2));

			$ratioH = $height / $pow2height;
			$ratioW = $width / $pow2width;

			if ($ratioH < $ratioW) {
				$width = $pow2width;
				$height /= $ratioW;
			} else {
				$height = $pow2height;
				$width /= $ratioH;
			}
		}

		/*
 		 * Make sure the requested height and width fall within the max
 		 * of the preview.
 		 */
		if ($height > $maxHeight) {
			$ratio = $height / $maxHeight;
			$height = $maxHeight;
			$width /= $ratio;
		}
		if ($width > $maxWidth) {
			$ratio = $width / $maxWidth;
			$width = $maxWidth;
			$height /= $ratio;
		}

		return [(int)round($width), (int)round($height)];
	}

	/**
	 * @param ISimpleFolder $previewFolder
	 * @param ISimpleFile $maxPreview
	 * @param int $width
	 * @param int $height
	 * @param bool $crop
	 * @param int $maxWidth
	 * @param int $maxHeight
	 * @return ISimpleFile
	 * @throws NotFoundException
	 * @throws \InvalidArgumentException if the preview would be invalid (in case the original image is invalid)
	 */
	private function generatePreview(ISimpleFolder $previewFolder, ISimpleFile $maxPreview, $width, $height, $crop, $maxWidth, $maxHeight) {
		$preview = $this->helper->getImage($maxPreview);

		if (!$preview->valid()) {
			throw new \InvalidArgumentException('Failed to generate preview, failed to load image');
		}

		if ($crop) {
			if ($height !== $preview->height() && $width !== $preview->width()) {
				//Resize
				$widthR = $preview->width() / $width;
				$heightR = $preview->height() / $height;

				if ($widthR > $heightR) {
					$scaleH = $height;
					$scaleW = $maxWidth / $heightR;
				} else {
					$scaleH = $maxHeight / $widthR;
					$scaleW = $width;
				}
				$preview->preciseResize(round($scaleW), round($scaleH));
			}
			$cropX = floor(abs($width - $preview->width()) * 0.5);
			$cropY = 0;
			$preview->crop($cropX, $cropY, $width, $height);
		} else {
			$preview->resize(max($width, $height));
		}


		$path = $this->generatePath($width, $height, $crop, $preview->dataMimeType());
		try {
			$file = $previewFolder->newFile($path);
			$file->putContent($preview->data());
		} catch (NotPermittedException $e) {
			throw new NotFoundException();
		}

		return $file;
	}

	/**
	 * @param ISimpleFolder $previewFolder
	 * @param int $width
	 * @param int $height
	 * @param bool $crop
	 * @param string $mimeType
	 * @return ISimpleFile
	 *
	 * @throws NotFoundException
	 */
	private function getCachedPreview(ISimpleFolder $previewFolder, $width, $height, $crop, $mimeType) {
		$path = $this->generatePath($width, $height, $crop, $mimeType);

		return $previewFolder->getFile($path);
	}

	/**
	 * Get the specific preview folder for this file
	 *
	 * @param File $file
	 * @return ISimpleFolder
	 */
	private function getPreviewFolder(File $file) {
		try {
			$folder = $this->appData->getFolder($file->getId());
		} catch (NotFoundException $e) {
			$folder = $this->appData->newFolder($file->getId());
		}

		return $folder;
	}

	/**
	 * @param string $mimeType
	 * @return null|string
	 * @throws \InvalidArgumentException
	 */
	private function getExtention($mimeType) {
		switch ($mimeType) {
			case 'image/png':
				return 'png';
			case 'image/jpeg':
				return 'jpg';
			case 'image/gif':
				return 'gif';
			default:
				throw new \InvalidArgumentException('Not a valid mimetype');
		}
	}
}


1		<?php
2		/**
3		* @copyright Copyright (c) 2016, Roeland Jago Douma <[email protected]>
4		*
5		* @author Morris Jobke <[email protected]>
6		* @author Robin Appelman <[email protected]>
7		* @author Roeland Jago Douma <[email protected]>
8		*
9		* @license GNU AGPL version 3 or any later version
10		*
11		* This program is free software: you can redistribute it and/or modify
12		* it under the terms of the GNU Affero General Public License as
13		* published by the Free Software Foundation, either version 3 of the
14		* License, or (at your option) any later version.
15		*
16		* This program is distributed in the hope that it will be useful,
17		* but WITHOUT ANY WARRANTY; without even the implied warranty of
18		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19		* GNU Affero General Public License for more details.
20		*
21		* You should have received a copy of the GNU Affero General Public License
22		* along with this program. If not, see <http://www.gnu.org/licenses/>.
23		*
24		*/
25
26		namespace OC\Preview;
27
28		use OCP\Files\File;
29		use OCP\Files\IAppData;
30		use OCP\Files\NotFoundException;
31		use OCP\Files\NotPermittedException;
32		use OCP\Files\SimpleFS\ISimpleFile;
33		use OCP\Files\SimpleFS\ISimpleFolder;
34		use OCP\IConfig;
35		use OCP\IImage;
36		use OCP\IPreview;
37		use OCP\Preview\IProvider;
38		use Symfony\Component\EventDispatcher\EventDispatcherInterface;
39		use Symfony\Component\EventDispatcher\GenericEvent;
40
41		class Generator {
42
43		/** @var IPreview */
44		private $previewManager;
45		/** @var IConfig */
46		private $config;
47		/** @var IAppData */
48		private $appData;
49		/** @var GeneratorHelper */
50		private $helper;
51		/** @var EventDispatcherInterface */
52		private $eventDispatcher;
53
54		/**
55		* @param IConfig $config
56		* @param IPreview $previewManager
57		* @param IAppData $appData
58		* @param GeneratorHelper $helper
59		* @param EventDispatcherInterface $eventDispatcher
60		*/
61	View Code Duplication	public function __construct(
62		IConfig $config,
63		IPreview $previewManager,
64		IAppData $appData,
65		GeneratorHelper $helper,
66		EventDispatcherInterface $eventDispatcher
67		) {
68		$this->config = $config;
69		$this->previewManager = $previewManager;
70		$this->appData = $appData;
71		$this->helper = $helper;
72		$this->eventDispatcher = $eventDispatcher;
73		}
74
75		/**
76		* Returns a preview of a file
77		*
78		* The cache is searched first and if nothing usable was found then a preview is
79		* generated by one of the providers
80		*
81		* @param File $file
82		* @param int $width
83		* @param int $height
84		* @param bool $crop
85		* @param string $mode
86		* @param string $mimeType
87		* @return ISimpleFile
88		* @throws NotFoundException
89		* @throws \InvalidArgumentException if the preview would be invalid (in case the original image is invalid)
90		*/
91		public function getPreview(File $file, $width = -1, $height = -1, $crop = false, $mode = IPreview::MODE_FILL, $mimeType = null) {
92		$this->eventDispatcher->dispatch(
93		IPreview::EVENT,
94		new GenericEvent($file,[
95		'width' => $width,
96		'height' => $height,
97		'crop' => $crop,
98		'mode' => $mode
99		])
100		);
101
102		if ($mimeType === null) {
103		$mimeType = $file->getMimeType();
104		}
105		if (!$this->previewManager->isMimeSupported($mimeType)) {
106		throw new NotFoundException();
107		}
108
109		$previewFolder = $this->getPreviewFolder($file);
110
111		// Get the max preview and infer the max preview sizes from that
112		$maxPreview = $this->getMaxPreview($previewFolder, $file, $mimeType);
113		list($maxWidth, $maxHeight) = $this->getPreviewSize($maxPreview);
114
115		// If both width and heigth are -1 we just want the max preview
116		if ($width === -1 && $height === -1) {
117		$width = $maxWidth;
118		$height = $maxHeight;
119		}
120
121		// Calculate the preview size
122		list($width, $height) = $this->calculateSize($width, $height, $crop, $mode, $maxWidth, $maxHeight);
123
124		// No need to generate a preview that is just the max preview
125		if ($width === $maxWidth && $height === $maxHeight) {
126		return $maxPreview;
127		}
128
129		// Try to get a cached preview. Else generate (and store) one
130		try {
131		try {
132		$file = $this->getCachedPreview($previewFolder, $width, $height, $crop, $maxPreview->getMimeType());
133		} catch (NotFoundException $e) {
134		$file = $this->generatePreview($previewFolder, $maxPreview, $width, $height, $crop, $maxWidth, $maxHeight);
135		}
136		} catch (\InvalidArgumentException $e) {
137		throw new NotFoundException();
138		}
139
140		return $file;
141		}
142
143		/**
144		* @param ISimpleFolder $previewFolder
145		* @param File $file
146		* @param string $mimeType
147		* @return ISimpleFile
148		* @throws NotFoundException
149		*/
150		private function getMaxPreview(ISimpleFolder $previewFolder, File $file, $mimeType) {
151		$nodes = $previewFolder->getDirectoryListing();
152
153		foreach ($nodes as $node) {
154		if (strpos($node->getName(), 'max')) {
155		return $node;
156		}
157		}
158
159		$previewProviders = $this->previewManager->getProviders();
160		foreach ($previewProviders as $supportedMimeType => $providers) {
161		if (!preg_match($supportedMimeType, $mimeType)) {
162		continue;
163		}
164
165		foreach ($providers as $provider) {
166		$provider = $this->helper->getProvider($provider);
167		if (!($provider instanceof IProvider)) {
168		continue;
169		}
170
171		$maxWidth = (int)$this->config->getSystemValue('preview_max_x', 4096);
172		$maxHeight = (int)$this->config->getSystemValue('preview_max_y', 4096);
173
174		$preview = $this->helper->getThumbnail($provider, $file, $maxWidth, $maxHeight);
175
176		if (!($preview instanceof IImage)) {
177		continue;
178		}
179
180		// Try to get the extention.
181		try {
182		$ext = $this->getExtention($preview->dataMimeType());
183		} catch (\InvalidArgumentException $e) {
184		// Just continue to the next iteration if this preview doesn't have a valid mimetype
185		continue;
186		}
187
188		$path = (string)$preview->width() . '-' . (string)$preview->height() . '-max.' . $ext;
189		try {
190		$file = $previewFolder->newFile($path);
191		$file->putContent($preview->data());
192		} catch (NotPermittedException $e) {
193		throw new NotFoundException();
194		}
195
196		return $file;
197		}
198		}
199
200		throw new NotFoundException();
201		}
202
203		/**
204		* @param ISimpleFile $file
205		* @return int[]
206		*/
207		private function getPreviewSize(ISimpleFile $file) {
208		$size = explode('-', $file->getName());
209		return [(int)$size[0], (int)$size[1]];
210		}
211
212		/**
213		* @param int $width
214		* @param int $height
215		* @param bool $crop
216		* @param string $mimeType
217		* @return string
218		*/
219		private function generatePath($width, $height, $crop, $mimeType) {
220		$path = (string)$width . '-' . (string)$height;
221		if ($crop) {
222		$path .= '-crop';
223		}
224
225		$ext = $this->getExtention($mimeType);
226		$path .= '.' . $ext;
227		return $path;
228		}
229
230
231
232		/**
233		* @param int $width
234		* @param int $height
235		* @param bool $crop
236		* @param string $mode
237		* @param int $maxWidth
238		* @param int $maxHeight
239		* @return int[]
240		*/
241		private function calculateSize($width, $height, $crop, $mode, $maxWidth, $maxHeight) {
242
243		/*
244		* If we are not cropping we have to make sure the requested image
245		* respects the aspect ratio of the original.
246		*/
247		if (!$crop) {
248		$ratio = $maxHeight / $maxWidth;
249
250		if ($width === -1) {
251		$width = $height / $ratio;
252		}
253		if ($height === -1) {
254		$height = $width * $ratio;
255		}
256
257		$ratioH = $height / $maxHeight;
258		$ratioW = $width / $maxWidth;
259
260		/*
261		* Fill means that the $height and $width are the max
262		* Cover means min.
263		*/
264		if ($mode === IPreview::MODE_FILL) {
265		if ($ratioH > $ratioW) {
266		$height = $width * $ratio;
267		} else {
268		$width = $height / $ratio;
269		}
270		} else if ($mode === IPreview::MODE_COVER) {
271		if ($ratioH > $ratioW) {
272		$width = $height / $ratio;
273		} else {
274		$height = $width * $ratio;
275		}
276		}
277		}
278
279		if ($height !== $maxHeight && $width !== $maxWidth) {
280		/*
281		* Scale to the nearest power of two
282		*/
283		$pow2height = 2 ** ceil(log($height) / log(2));
284		$pow2width = 2 ** ceil(log($width) / log(2));
285
286		$ratioH = $height / $pow2height;
287		$ratioW = $width / $pow2width;
288
289		if ($ratioH < $ratioW) {
290		$width = $pow2width;
291		$height /= $ratioW;
292		} else {
293		$height = $pow2height;
294		$width /= $ratioH;
295		}
296		}
297
298		/*
299		* Make sure the requested height and width fall within the max
300		* of the preview.
301		*/
302		if ($height > $maxHeight) {
303		$ratio = $height / $maxHeight;
304		$height = $maxHeight;
305		$width /= $ratio;
306		}
307		if ($width > $maxWidth) {
308		$ratio = $width / $maxWidth;
309		$width = $maxWidth;
310		$height /= $ratio;
311		}
312
313		return [(int)round($width), (int)round($height)];
314		}
315
316		/**
317		* @param ISimpleFolder $previewFolder
318		* @param ISimpleFile $maxPreview
319		* @param int $width
320		* @param int $height
321		* @param bool $crop
322		* @param int $maxWidth
323		* @param int $maxHeight
324		* @return ISimpleFile
325		* @throws NotFoundException
326		* @throws \InvalidArgumentException if the preview would be invalid (in case the original image is invalid)
327		*/
328		private function generatePreview(ISimpleFolder $previewFolder, ISimpleFile $maxPreview, $width, $height, $crop, $maxWidth, $maxHeight) {
329		$preview = $this->helper->getImage($maxPreview);
330
331		if (!$preview->valid()) {
332		throw new \InvalidArgumentException('Failed to generate preview, failed to load image');
333		}
334
335		if ($crop) {
336		if ($height !== $preview->height() && $width !== $preview->width()) {
337		//Resize
338		$widthR = $preview->width() / $width;
339		$heightR = $preview->height() / $height;
340
341		if ($widthR > $heightR) {
342		$scaleH = $height;
343		$scaleW = $maxWidth / $heightR;
344		} else {
345		$scaleH = $maxHeight / $widthR;
346		$scaleW = $width;
347		}
348		$preview->preciseResize(round($scaleW), round($scaleH));
349		}
350		$cropX = floor(abs($width - $preview->width()) * 0.5);
351		$cropY = 0;
352		$preview->crop($cropX, $cropY, $width, $height);
353		} else {
354		$preview->resize(max($width, $height));
355		}
356
357
358		$path = $this->generatePath($width, $height, $crop, $preview->dataMimeType());
359		try {
360		$file = $previewFolder->newFile($path);
361		$file->putContent($preview->data());
362		} catch (NotPermittedException $e) {
363		throw new NotFoundException();
364		}
365
366		return $file;
367		}
368
369		/**
370		* @param ISimpleFolder $previewFolder
371		* @param int $width
372		* @param int $height
373		* @param bool $crop
374		* @param string $mimeType
375		* @return ISimpleFile
376		*
377		* @throws NotFoundException
378		*/
379		private function getCachedPreview(ISimpleFolder $previewFolder, $width, $height, $crop, $mimeType) {
380		$path = $this->generatePath($width, $height, $crop, $mimeType);
381
382		return $previewFolder->getFile($path);
383		}
384
385		/**
386		* Get the specific preview folder for this file
387		*
388		* @param File $file
389		* @return ISimpleFolder
390		*/
391		private function getPreviewFolder(File $file) {
392		try {
393		$folder = $this->appData->getFolder($file->getId());
394		} catch (NotFoundException $e) {
395		$folder = $this->appData->newFolder($file->getId());
396		}
397
398		return $folder;
399		}
400
401		/**
402		* @param string $mimeType
403		* @return null\|string
404		* @throws \InvalidArgumentException
405		*/
406		private function getExtention($mimeType) {
407		switch ($mimeType) {
408		case 'image/png':
409		return 'png';
410		case 'image/jpeg':
411		return 'jpg';
412		case 'image/gif':
413		return 'gif';
414		default:
415		throw new \InvalidArgumentException('Not a valid mimetype');
416		}
417		}
418		}
419

nextcloud / server

Pull Request — master (#7756)

Generator::getPreview() C

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