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<?php |
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namespace League\Glide\Manipulators; |
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use Intervention\Image\Image; |
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use League\Flysystem\FilesystemInterface; |
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use League\Glide\Filesystem\FilesystemException; |
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use League\Glide\Manipulators\Helpers\Dimension; |
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/** |
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* @property string $dpr |
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* @property string $mark |
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* @property string $markfit |
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* @property string $markh |
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* @property string $markpad |
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* @property string $markpos |
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* @property string $markw |
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* @property string $markx |
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* @property string $marky |
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*/ |
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class Watermark extends BaseManipulator |
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{ |
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/** |
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* The watermarks file system. |
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* @var FilesystemInterface|null |
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*/ |
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protected $watermarks; |
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/** |
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* The watermarks path prefix. |
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* @var string |
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*/ |
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protected $watermarksPathPrefix; |
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/** |
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* Create Watermark instance. |
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* @param FilesystemInterface $watermarks The watermarks file system. |
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*/ |
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public function __construct(FilesystemInterface $watermarks = null, $watermarksPathPrefix = '') |
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{ |
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$this->setWatermarks($watermarks); |
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$this->setWatermarksPathPrefix($watermarksPathPrefix); |
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} |
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/** |
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* Set the watermarks file system. |
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* @param FilesystemInterface $watermarks The watermarks file system. |
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*/ |
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public function setWatermarks(FilesystemInterface $watermarks = null) |
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{ |
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$this->watermarks = $watermarks; |
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} |
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/** |
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* Get the watermarks file system. |
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* @return FilesystemInterface The watermarks file system. |
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*/ |
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public function getWatermarks() |
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{ |
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return $this->watermarks; |
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} |
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/** |
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* Set the watermarks path prefix. |
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* @param string $watermarksPathPrefix The watermarks path prefix. |
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*/ |
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public function setWatermarksPathPrefix($watermarksPathPrefix = '') |
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{ |
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$this->watermarksPathPrefix = trim($watermarksPathPrefix, '/'); |
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} |
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/** |
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* Get the watermarks path prefix. |
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* @return string The watermarks path prefix. |
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*/ |
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public function getWatermarksPathPrefix() |
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{ |
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return $this->watermarksPathPrefix; |
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} |
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/** |
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* Perform watermark image manipulation. |
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* @param Image $image The source image. |
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* @return Image The manipulated image. |
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*/ |
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public function run(Image $image) |
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{ |
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if ($watermark = $this->getImage($image)) { |
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$markw = $this->getDimension($image, 'markw'); |
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$markh = $this->getDimension($image, 'markh'); |
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$markx = $this->getDimension($image, 'markx'); |
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$marky = $this->getDimension($image, 'marky'); |
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$markpad = $this->getDimension($image, 'markpad'); |
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$markfit = $this->getFit(); |
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$markpos = $this->getPosition(); |
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if ($markpad) { |
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$markx = $marky = $markpad; |
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} |
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$size = new Size(); |
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$size->setParams([ |
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'w' => $markw, |
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'h' => $markh, |
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'fit' => $markfit, |
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]); |
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$watermark = $size->run($watermark); |
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$image->insert($watermark, $markpos, intval($markx), intval($marky)); |
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} |
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return $image; |
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} |
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/** |
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* Get the watermark image. |
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* @param Image $image The source image. |
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* @return Image|null The watermark image. |
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*/ |
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public function getImage(Image $image) |
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{ |
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if (is_null($this->watermarks)) { |
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return; |
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} |
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if (!is_string($this->mark)) { |
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return; |
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} |
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if ($this->mark === '') { |
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return; |
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} |
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$path = $this->mark; |
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if ($this->watermarksPathPrefix) { |
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$path = $this->watermarksPathPrefix.'/'.$path; |
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} |
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if ($this->watermarks->has($path)) { |
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$source = $this->watermarks->read($path); |
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if ($source === false) { |
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throw new FilesystemException( |
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'Could not read the image `'.$path.'`.' |
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); |
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} |
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return $image->getDriver()->init($source); |
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} |
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} |
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/** |
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* Get a dimension. |
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* @param Image $image The source image. |
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* @param string $field The requested field. |
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* @return double|null The dimension. |
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*/ |
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public function getDimension(Image $image, $field) |
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{ |
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if ($this->{$field}) { |
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return (new Dimension($image, $this->getDpr()))->get($this->{$field}); |
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} |
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} |
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/** |
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* Resolve the device pixel ratio. |
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* @return double The device pixel ratio. |
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*/ |
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public function getDpr() |
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{ |
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if (!is_numeric($this->dpr)) { |
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return 1.0; |
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} |
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if ($this->dpr < 0 or $this->dpr > 8) { |
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return 1.0; |
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} |
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return (double) $this->dpr; |
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} |
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/** |
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* Get the fit. |
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* @return string The fit. |
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*/ |
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public function getFit() |
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{ |
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$fitMethods = [ |
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'contain', |
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'max', |
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'stretch', |
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'crop', |
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'crop-top-left', |
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'crop-top', |
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'crop-top-right', |
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'crop-left', |
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'crop-center', |
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'crop-right', |
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'crop-bottom-left', |
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'crop-bottom', |
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'crop-bottom-right', |
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]; |
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if (in_array($this->markfit, $fitMethods, true)) { |
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return $this->markfit; |
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} |
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} |
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/** |
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* Get the position. |
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* @return string The position. |
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*/ |
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public function getPosition() |
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{ |
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$positions = [ |
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'top-left', |
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'top', |
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'top-right', |
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'left', |
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'center', |
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'right', |
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'bottom-left', |
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'bottom', |
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'bottom-right', |
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]; |
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if (in_array($this->markpos, $positions, true)) { |
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return $this->markpos; |
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} |
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return 'bottom-right'; |
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} |
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} |
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thephpleague /
glide
