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<?php
/**
* elFinder Plugin AutoRotate
*
* Auto rotation on file upload of JPEG file by EXIF Orientation.
*
* ex. binding, configure on connector options
* $opts = array(
* 'bind' => array(
* 'upload.presave' => array(
* 'Plugin.AutoRotate.onUpLoadPreSave'
* )
* ),
* // global configure (optional)
* 'plugin' => array(
* 'AutoRotate' => array(
* 'enable' => true, // For control by volume driver
* 'quality' => 95, // JPEG image save quality
* 'offDropWith' => null // To disable it if it is dropped with pressing the meta key
* // Alt: 8, Ctrl: 4, Meta: 2, Shift: 1 - sum of each value
* // In case of using any key, specify it as an array
* )
* ),
* // each volume configure (optional)
* 'roots' => array(
* array(
* 'driver' => 'LocalFileSystem',
* 'path' => '/path/to/files/',
* 'URL' => 'http://localhost/to/files/'
* 'plugin' => array(
* 'AutoRotate' => array(
* 'enable' => true, // For control by volume driver
* 'quality' => 95, // JPEG image save quality
* 'offDropWith' => null // To disable it if it is dropped with pressing the meta key
* // Alt: 8, Ctrl: 4, Meta: 2, Shift: 1 - sum of each value
* // In case of using any key, specify it as an array
* )
* )
* )
* )
* );
*
* @package elfinder
* @author Naoki Sawada
* @license New BSD
*/
class elFinderPluginAutoRotate extends elFinderPlugin {
public function __construct($opts) {
$defaults = array(
'enable' => true, // For control by volume driver
'quality' => 95, // JPEG image save quality
'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, $opts);
}
public function onUpLoadPreSave(&$thash, &$name, $src, $elfinder, $volume) {
$opts = $this->getCurrentOpts($volume);
if (! $this->iaEnabled($opts)) {
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);
} else {
$srcImgInfo = getimagesize($src);
if ($srcImgInfo === false) {
return false;
}
$imageType = $srcImgInfo[2];
}
// check target image type
if ($imageType !== IMAGETYPE_JPEG) {
return false;
}
if (! $srcImgInfo) {
$srcImgInfo = getimagesize($src);
}
return $this->rotate($volume, $src, $srcImgInfo, $opts['quality']);
}
private function rotate($volume, $src, $srcImgInfo, $quality) {
if (! function_exists('exif_read_data')) {
return false;
}
$degree = 0;
$exif = exif_read_data($src);
if($exif && !empty($exif['Orientation'])) {
switch($exif['Orientation']) {
case 8:
$degree = 270;
break;
case 3:
$degree = 180;
break;
case 6:
$degree = 90;
break;
}
}
$opts = array(
'degree' => $degree,
'jpgQuality' => $quality,
'checkAnimated' => true
);
return $volume->imageUtil('rotate', $src, $opts);
}
}
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