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