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<?php
/**
* elFinder Plugin AutoResize
* Auto resize on file upload.
* ex. binding, configure on connector options
* $opts = array(
* 'bind' => array(
* 'upload.presave' => array(
* 'Plugin.AutoResize.onUpLoadPreSave'
* )
* ),
* // global configure (optional)
* 'plugin' => array(
* 'AutoResize' => array(
* 'enable' => true, // For control by volume driver
* 'maxWidth' => 1024, // Path to Water mark image
* 'maxHeight' => 1024, // Margin right pixel
* 'quality' => 95, // JPEG image save quality
* 'preserveExif' => false, // Preserve EXIF data (Imagick only)
* 'forceEffect' => false, // For change quality or make progressive JPEG of small images
* 'targetType' => IMG_GIF|IMG_JPG|IMG_PNG|IMG_WBMP, // Target image formats ( bit-field )
* 'offDropWith' => null, // Enabled by default. 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
* 'onDropWith' => null // Disabled by default. To enable 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(
* 'AutoResize' => array(
* 'enable' => true, // For control by volume driver
* 'maxWidth' => 1024, // Path to Water mark image
* 'maxHeight' => 1024, // Margin right pixel
* 'quality' => 95, // JPEG image save quality
* 'preserveExif' => false, // Preserve EXIF data (Imagick only)
* 'forceEffect' => false, // For change quality or make progressive JPEG of small images
* 'targetType' => IMG_GIF|IMG_JPG|IMG_PNG|IMG_WBMP, // Target image formats ( bit-field )
* 'offDropWith' => null, // Enabled by default. 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
* 'onDropWith' => null // Disabled by default. To enable 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 elFinderPluginAutoResize extends elFinderPlugin
{
public function __construct($opts)
{
$defaults = array(
'enable' => true, // For control by volume driver
'maxWidth' => 1024, // Path to Water mark image
'maxHeight' => 1024, // Margin right pixel
'quality' => 95, // JPEG image save quality
'preserveExif' => false, // Preserve EXIF data (Imagick only)
'forceEffect' => false, // For change quality or make progressive JPEG of small images
'targetType' => IMG_GIF | IMG_JPG | IMG_PNG | IMG_WBMP, // Target image formats ( bit-field )
'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
'disableWithContentSaveId' => true // Disable on URL upload with post data "contentSaveId"
);
$this->opts = array_merge($defaults, $opts);
}
public function onUpLoadPreSave(&$thash, &$name, $src, $elfinder, $volume)
{
if (!$src) {
return false;
}
$opts = $this->getCurrentOpts($volume);
if (!$this->iaEnabled($opts, $elfinder)) {
return false;
}
$imageType = null;
$srcImgInfo = null;
if (extension_loaded('fileinfo') && function_exists('mime_content_type')) {
$mime = mime_content_type($src);
if (substr($mime, 0, 5) !== 'image') {
return false;
}
}
if (extension_loaded('exif') && function_exists('exif_imagetype')) {
$imageType = exif_imagetype($src);
if ($imageType === false) {
return false;
}
} else {
$srcImgInfo = getimagesize($src);
if ($srcImgInfo === false) {
return false;
}
$imageType = $srcImgInfo[2];
}
// 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[$imageType]) || !($opts['targetType'] & $imgTypes[$imageType])) {
return false;
}
if (!$srcImgInfo) {
$srcImgInfo = getimagesize($src);
}
if ($opts['forceEffect'] || $srcImgInfo[0] > $opts['maxWidth'] || $srcImgInfo[1] > $opts['maxHeight']) {
return $this->resize($volume, $src, $srcImgInfo, $opts['maxWidth'], $opts['maxHeight'], $opts['quality'], $opts['preserveExif']);
}
return false;
}
private function resize($volume, $src, $srcImgInfo, $maxWidth, $maxHeight, $jpgQuality, $preserveExif)
{
$zoom = min(($maxWidth / $srcImgInfo[0]), ($maxHeight / $srcImgInfo[1]));
$width = round($srcImgInfo[0] * $zoom);
$height = round($srcImgInfo[1] * $zoom);
$unenlarge = true;
$checkAnimated = true;
return $volume->imageUtil('resize', $src, compact('width', 'height', 'jpgQuality', 'preserveExif', 'unenlarge', 'checkAnimated'));
}
}
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