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307 lines
9.4 KiB
307 lines
9.4 KiB
<?php |
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/** |
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* elFinder Plugin Watermark |
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* |
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* Print watermark on file upload. |
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* |
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* ex. binding, configure on connector options |
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* $opts = array( |
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* 'bind' => array( |
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* 'upload.presave' => array( |
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* 'Plugin.Watermark.onUpLoadPreSave' |
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* ) |
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* ), |
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* // global configure (optional) |
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* 'plugin' => array( |
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* 'Watermark' => array( |
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* 'enable' => true, // For control by volume driver |
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* 'source' => 'logo.png', // Path to Water mark image |
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* 'marginRight' => 5, // Margin right pixel |
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* 'marginBottom' => 5, // Margin bottom pixel |
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* 'quality' => 95, // JPEG image save quality |
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* 'transparency' => 70, // Water mark image transparency ( other than PNG ) |
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* 'targetType' => IMG_GIF|IMG_JPG|IMG_PNG|IMG_WBMP, // Target image formats ( bit-field ) |
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* 'targetMinPixel' => 200, // Target image minimum pixel size |
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* 'offDropWith' => null // To disable it if it is dropped with pressing the meta key |
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* // Alt: 8, Ctrl: 4, Meta: 2, Shift: 1 - sum of each value |
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* // In case of using any key, specify it as an array |
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* ) |
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* ), |
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* // each volume configure (optional) |
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* 'roots' => array( |
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* array( |
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* 'driver' => 'LocalFileSystem', |
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* 'path' => '/path/to/files/', |
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* 'URL' => 'http://localhost/to/files/' |
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* 'plugin' => array( |
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* 'Watermark' => array( |
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* 'enable' => true, // For control by volume driver |
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* 'source' => 'logo.png', // Path to Water mark image |
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* 'marginRight' => 5, // Margin right pixel |
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* 'marginBottom' => 5, // Margin bottom pixel |
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* 'quality' => 95, // JPEG image save quality |
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* 'transparency' => 70, // Water mark image transparency ( other than PNG ) |
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* 'targetType' => IMG_GIF|IMG_JPG|IMG_PNG|IMG_WBMP, // Target image formats ( bit-field ) |
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* 'targetMinPixel' => 200, // Target image minimum pixel size |
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* 'offDropWith' => null // To disable it if it is dropped with pressing the meta key |
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* // Alt: 8, Ctrl: 4, Meta: 2, Shift: 1 - sum of each value |
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* // In case of using any key, specify it as an array |
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* ) |
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* ) |
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* ) |
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* ) |
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* ); |
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* |
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* @package elfinder |
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* @author Naoki Sawada |
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* @license New BSD |
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*/ |
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class elFinderPluginWatermark extends elFinderPlugin { |
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private $watermarkImgInfo = null; |
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public function __construct($opts) { |
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$defaults = array( |
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'enable' => true, // For control by volume driver |
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'source' => 'logo.png', // Path to Water mark image |
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'marginRight' => 5, // Margin right pixel |
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'marginBottom' => 5, // Margin bottom pixel |
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'quality' => 95, // JPEG image save quality |
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'transparency' => 70, // Water mark image transparency ( other than PNG ) |
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'targetType' => IMG_GIF|IMG_JPG|IMG_PNG|IMG_WBMP, // Target image formats ( bit-field ) |
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'targetMinPixel' => 200, // Target image minimum pixel size |
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'offDropWith' => null // To disable it if it is dropped with pressing the meta key |
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// Alt: 8, Ctrl: 4, Meta: 2, Shift: 1 - sum of each value |
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// In case of using any key, specify it as an array |
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); |
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$this->opts = array_merge($defaults, $opts); |
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} |
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public function onUpLoadPreSave(&$path, &$name, $src, $elfinder, $volume) { |
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$opts = $this->getCurrentOpts($volume); |
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if (! $this->iaEnabled($opts)) { |
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return false; |
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} |
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$mime = mime_content_type($src); |
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if (substr($mime, 0, 5) !== 'image') { |
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return false; |
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} |
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$srcImgInfo = getimagesize($src); |
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if ($srcImgInfo === false) { |
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return false; |
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} |
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// check Animation Gif |
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if (elFinder::isAnimationGif($src)) { |
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return false; |
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} |
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// check water mark image |
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if (! file_exists($opts['source'])) { |
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$opts['source'] = dirname(__FILE__) . "/" . $opts['source']; |
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} |
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if (is_readable($opts['source'])) { |
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$watermarkImgInfo = getimagesize($opts['source']); |
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if (! $watermarkImgInfo) { |
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return false; |
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} |
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} else { |
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return false; |
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} |
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$watermark = $opts['source']; |
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$marginLeft = $opts['marginRight']; |
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$marginBottom = $opts['marginBottom']; |
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$quality = $opts['quality']; |
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$transparency = $opts['transparency']; |
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// check target image type |
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$imgTypes = array( |
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IMAGETYPE_GIF => IMG_GIF, |
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IMAGETYPE_JPEG => IMG_JPEG, |
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IMAGETYPE_PNG => IMG_PNG, |
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IMAGETYPE_BMP => IMG_WBMP, |
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IMAGETYPE_WBMP => IMG_WBMP |
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); |
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if (! isset($imgTypes[$srcImgInfo[2]]) || ! ($opts['targetType'] & $imgTypes[$srcImgInfo[2]])) { |
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return false; |
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} |
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// check target image size |
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if ($opts['targetMinPixel'] > 0 && $opts['targetMinPixel'] > min($srcImgInfo[0], $srcImgInfo[1])) { |
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return false; |
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} |
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$watermark_width = $watermarkImgInfo[0]; |
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$watermark_height = $watermarkImgInfo[1]; |
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$dest_x = $srcImgInfo[0] - $watermark_width - $marginLeft; |
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$dest_y = $srcImgInfo[1] - $watermark_height - $marginBottom; |
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if (class_exists('Imagick', false)) { |
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return $this->watermarkPrint_imagick($src, $watermark, $dest_x, $dest_y, $quality, $transparency, $watermarkImgInfo); |
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} else { |
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return $this->watermarkPrint_gd($src, $watermark, $dest_x, $dest_y, $quality, $transparency, $watermarkImgInfo, $srcImgInfo); |
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} |
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} |
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private function watermarkPrint_imagick($src, $watermark, $dest_x, $dest_y, $quality, $transparency, $watermarkImgInfo) { |
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try { |
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// Open the original image |
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$img = new Imagick($src); |
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// Open the watermark |
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$watermark = new Imagick($watermark); |
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// Set transparency |
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if (strtoupper($watermark->getImageFormat()) !== 'PNG') { |
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$watermark->setImageOpacity($transparency/100); |
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} |
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// Overlay the watermark on the original image |
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$img->compositeImage($watermark, imagick::COMPOSITE_OVER, $dest_x, $dest_y); |
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// Set quality |
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if (strtoupper($img->getImageFormat()) === 'JPEG') { |
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$img->setImageCompression(imagick::COMPRESSION_JPEG); |
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$img->setCompressionQuality($quality); |
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} |
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$result = $img->writeImage($src); |
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$img->clear(); |
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$img->destroy(); |
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$watermark->clear(); |
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$watermark->destroy(); |
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return $result ? true : false; |
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} catch (Exception $e) { |
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return false; |
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} |
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} |
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private function watermarkPrint_gd($src, $watermark, $dest_x, $dest_y, $quality, $transparency, $watermarkImgInfo, $srcImgInfo) { |
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$watermark_width = $watermarkImgInfo[0]; |
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$watermark_height = $watermarkImgInfo[1]; |
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$ermsg = ''; |
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switch ($watermarkImgInfo['mime']) { |
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case 'image/gif': |
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if (imagetypes() & IMG_GIF) { |
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$oWatermarkImg = imagecreatefromgif($watermark); |
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} else { |
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$ermsg = 'GIF images are not supported'; |
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} |
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break; |
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case 'image/jpeg': |
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if (imagetypes() & IMG_JPG) { |
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$oWatermarkImg = imagecreatefromjpeg($watermark) ; |
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} else { |
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$ermsg = 'JPEG images are not supported'; |
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} |
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break; |
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case 'image/png': |
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if (imagetypes() & IMG_PNG) { |
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$oWatermarkImg = imagecreatefrompng($watermark) ; |
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} else { |
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$ermsg = 'PNG images are not supported'; |
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} |
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break; |
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case 'image/wbmp': |
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if (imagetypes() & IMG_WBMP) { |
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$oWatermarkImg = imagecreatefromwbmp($watermark); |
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} else { |
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$ermsg = 'WBMP images are not supported'; |
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} |
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break; |
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default: |
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$oWatermarkImg = false; |
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$ermsg = $watermarkImgInfo['mime'].' images are not supported'; |
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break; |
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} |
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if (! $ermsg) { |
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switch ($srcImgInfo['mime']) { |
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case 'image/gif': |
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if (imagetypes() & IMG_GIF) { |
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$oSrcImg = imagecreatefromgif($src); |
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} else { |
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$ermsg = 'GIF images are not supported'; |
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} |
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break; |
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case 'image/jpeg': |
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if (imagetypes() & IMG_JPG) { |
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$oSrcImg = imagecreatefromjpeg($src) ; |
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} else { |
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$ermsg = 'JPEG images are not supported'; |
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} |
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break; |
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case 'image/png': |
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if (imagetypes() & IMG_PNG) { |
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$oSrcImg = imagecreatefrompng($src) ; |
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} else { |
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$ermsg = 'PNG images are not supported'; |
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} |
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break; |
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case 'image/wbmp': |
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if (imagetypes() & IMG_WBMP) { |
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$oSrcImg = imagecreatefromwbmp($src); |
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} else { |
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$ermsg = 'WBMP images are not supported'; |
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} |
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break; |
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default: |
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$oSrcImg = false; |
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$ermsg = $srcImgInfo['mime'].' images are not supported'; |
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break; |
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} |
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} |
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if ($ermsg || false === $oSrcImg || false === $oWatermarkImg) { |
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return false; |
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} |
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if ($srcImgInfo['mime'] === 'image/png') { |
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if (function_exists('imagecolorallocatealpha')) { |
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$bg = imagecolorallocatealpha($oSrcImg, 255, 255, 255, 127); |
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imagefill($oSrcImg, 0, 0 , $bg); |
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} |
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} |
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if ($watermarkImgInfo['mime'] === 'image/png') { |
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imagecopy($oSrcImg, $oWatermarkImg, $dest_x, $dest_y, 0, 0, $watermark_width, $watermark_height); |
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} else { |
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imagecopymerge($oSrcImg, $oWatermarkImg, $dest_x, $dest_y, 0, 0, $watermark_width, $watermark_height, $transparency); |
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} |
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switch ($srcImgInfo['mime']) { |
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case 'image/gif': |
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imagegif($oSrcImg, $src); |
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break; |
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case 'image/jpeg': |
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imagejpeg($oSrcImg, $src, $quality); |
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break; |
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case 'image/png': |
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if (function_exists('imagesavealpha') && function_exists('imagealphablending')) { |
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imagealphablending($oSrcImg, false); |
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imagesavealpha($oSrcImg, true); |
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} |
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imagepng($oSrcImg, $src); |
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break; |
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case 'image/wbmp': |
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imagewbmp($oSrcImg, $src); |
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break; |
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} |
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imageDestroy($oSrcImg); |
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imageDestroy($oWatermarkImg); |
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return true; |
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} |
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}
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