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113 lines
3.2 KiB
PHP
113 lines
3.2 KiB
PHP
<?php
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/**
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* elFinder Plugin AutoRotate
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*
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* Auto rotation on file upload of JPEG file by EXIF Orientation.
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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.AutoRotate.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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* 'AutoRotate' => array(
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* 'enable' => true, // For control by volume driver
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* 'quality' => 95, // JPEG image save quality
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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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* 'AutoRotate' => array(
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* 'enable' => true, // For control by volume driver
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* 'quality' => 95, // JPEG image save quality
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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 elFinderPluginAutoRotate extends elFinderPlugin {
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public function __construct($opts) {
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$defaults = array(
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'enable' => true, // For control by volume driver
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'quality' => 95, // JPEG image save quality
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'offDropWith' => null // To disable it if it is dropped with pressing the meta key
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// Alt: 8, Ctrl: 4, Meta: 2, Shift: 1 - sum of each value
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// In case of using any key, specify it as an array
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);
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$this->opts = array_merge($defaults, $opts);
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}
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public function onUpLoadPreSave(&$thash, &$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 target image type
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if ($srcImgInfo[2] !== IMAGETYPE_JPEG) {
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return false;
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}
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return $this->rotate($volume, $src, $srcImgInfo, $opts['quality']);
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}
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private function rotate($volume, $src, $srcImgInfo, $quality) {
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if (! function_exists('exif_read_data')) {
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return false;
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}
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$degree = 0;
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$exif = exif_read_data($src);
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if($exif && !empty($exif['Orientation'])) {
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switch($exif['Orientation']) {
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case 8:
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$degree = 270;
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break;
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case 3:
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$degree = 180;
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break;
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case 6:
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$degree = 90;
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break;
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}
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}
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$opts = array(
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'degree' => $degree,
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'jpgQuality' => $quality
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);
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return $volume->imageUtil('rotate', $src, $opts);
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}
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}
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