mirror of
https://github.com/silverstripe/silverstripe-cms
synced 2024-10-22 08:05:56 +02:00
e79dd5558b
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/trunk@66506 467b73ca-7a2a-4603-9d3b-597d59a354a9
260 lines
8.7 KiB
PHP
260 lines
8.7 KiB
PHP
<?php
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/**
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* This Controller handles all operation needed for ImageEditor to work(expect for GD operations).
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* @package cms
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* @subpackage assets
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*/
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class ImageEditor extends Controller {
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public $fileToEdit = "";
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public $fileToEditOnlyName = "";
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/**
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* Includes all JS required for ImageEditor. This method requires setting
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* a fileToEdit URL in POST.
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*
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* @return String
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*/
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public function index() {
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Requirements::clear();
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Requirements::javascript(THIRDPARTY_DIR . '/prototype.js');
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Requirements::javascript(THIRDPARTY_DIR . '/scriptaculous/scriptaculous.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/Utils.js');
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//Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/ImageHistory.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/Image.js');
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//Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/ImageTransformation.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/Resizeable.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/Effects.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/Environment.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/Crop.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/Resize.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/ImageBox.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/ImageEditor.js');
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Requirements::javascript(CMS_DIR . '/javascript/ImageEditor/DocumentBody.js');
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Requirements::javascript(THIRDPARTY_DIR . '/loader.js');
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Requirements::javascript(THIRDPARTY_DIR . '/behaviour.js');
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Requirements::javascript(CMS_DIR . '/javascript/LeftAndMain.js');
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Requirements::css(CMS_DIR . 'css/ImageEditor/ImageEditor.css');
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if(!isset($this->requestParams['fileToEdit'])) $this->raiseError();
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$fileWithPath = $this->requestParams['fileToEdit'];
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$this->fileToEdit = $this->file2Origin($fileWithPath);
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$this->fileToEditOnlyName = $this->urlToFilename($this->fileToEdit);
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return $this->renderWith(__CLASS__);
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}
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/**
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* Method is used for manipulating photos.
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* Method requires two params set in POST
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* file - file on which operation will be performed
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* command - name of operation(crop|rotate|resize)
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*
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* Each operation requires additional parameters.
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*
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* @return String - JSON array with image properties (width,height,url).
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*/
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public function manipulate() {
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$fileName = $this->requestParams['file'];
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if(strpos($fileName,'?') !== false) $fileName = substr($fileName,0,strpos($fileName,'?'));
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$command = $this->requestParams['command'];
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$this->checkFileExists($fileName);
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$fileInfo = pathinfo($fileName);
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$gd = new GD($this->url2File($fileName));
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switch($command) {
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case 'rotate':
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$gd = $gd->rotate(90);
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break;
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case 'resize':
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$imageNewWidth = $_POST['newImageWidth'];
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$imageNewHeight = $_POST['newImageHeight'];
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$gd = $gd->resize($imageNewWidth,$imageNewHeight);
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break;
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case 'crop':
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$top = $_POST['top'];
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$left = $_POST['left'];
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$width = $_POST['width'];
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$height = $_POST['height'];
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$gd = $gd->crop($top,$left,$width,$height);
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break;
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case 'greyscale':
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$gd = $gd->greyscale();
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break;
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case 'sepia':
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$gd = $gd->sepia();
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break;
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case 'blur':
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$gd = $gd->blur();
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break;
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case 'adjust-contrast':
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$value = intval($_POST['value']);
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$gd = $gd->contrast($value);
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break;
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case 'adjust-brightness':
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$value = intval($_POST['value']);
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$gd = $gd->brightness($value);
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break;
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case 'adjust-gamma':
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$value = floatval($_POST['value']);
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$gd = $gd->gamma($value);
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break;
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}
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$rand = md5(rand(1,100000));
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$gd->writeTo(ASSETS_PATH . '/_tmp/' . $rand . '.' . $fileInfo['extension']);
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return $this->getImageInfoInJSON($gd,ASSETS_PATH . '/_tmp/' . $rand . '.' . $fileInfo['extension']);
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}
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/**
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* Method is used for saving photos.
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* Method requires two params set in POST
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* originalFile - this file will be replaced by second file
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* editedFile - this file will replace first file.
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*
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* After replacing original file all thumbnails created from it are removed.
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*
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* @return String - Message that everything went ok.
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*/
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public function save() {
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if(isset($this->requestParams['originalFile']) && isset($this->requestParams['editedFile'])) {
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$originalFile = $this->requestParams['originalFile'];
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$editedFile = $this->requestParams['editedFile'];
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if(strpos($originalFile,'?') !== false) $originalFile = substr($originalFile,0,strpos($originalFile,'?'));
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if($this->checkFileExists($originalFile) && $this->checkFileExists($editedFile)) {
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if($editedFile != $originalFile && copy($this->url2File($editedFile),$this->url2File($originalFile))) {
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$image = DataObject::get_one('File','"Filename" = \'' . substr($this->url2File($originalFile),3) . '\'');
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$image->deleteFormattedImages();
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$image->generateFormattedImage('AssetLibraryPreview');
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} else {
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$this->raiseError();
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}
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} else {
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$this->raiseError();
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}
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} else {
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$this->raiseError();
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}
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return 'parent.parent.parent.statusMessage(\'Image saved\',\'good\',false);';
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}
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/**
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* Method is invoked when ImageEditor is closed whether image is saved or not.
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*
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* /assets/tmp is folder where we store temporary images created during editing so
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* after closing they are no necessity to keep them.
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*
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* @return null
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*/
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public function close() {
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$tmpDir = ASSETS_PATH . '/_tmp';
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if(file_exists($tmpDir)) {
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Filesystem::removeFolder($tmpDir);
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mkdir($tmpDir, Filesystem::$folder_create_mask);
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}
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}
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/**
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* Method return JSON array containing info about image.
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*
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* @param gd - GD object used for retrieving info about image
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* @param file
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*
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* @return string JSON array explained in manipulate method comment
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*/
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private function getImageInfoInJSON(GD $gd,$file) {
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return '{"fileName":"' . $file . '","width":' . $gd->getWidth() . ',"height":' . $gd->getHeight() . '}';
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}
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/**
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* Method converts thumbnail file name to file name of it's "parent"
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*
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* @param file - name of thumbnail file
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*
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* @return string name of parent file.
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*/
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private function file2Origin($file) {
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$file = str_replace('_resampled/','',$file);
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$file = str_replace('_resampled/','',$file);
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$file = str_replace('AssetLibraryPreview-','',$file);
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$this->checkFileExists($file);
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return $file;
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}
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/**
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* Method converts URL of file to file path in file system.
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*
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* @param url - url of file
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*
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* @return string path of file in file system
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*/
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private function url2File($url) {
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return '..' . substr($url,strpos($url,'/assets'));
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}
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/**
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* Method checks if file exists and have proper name and extension.
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*
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* If any of constraints aren't fulfilled method will generate error.
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*
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* @param url - url of file
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*
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* @return boolean
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*/
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private function checkFileExists($url) {
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if(strpos($url,'?') !== false) $url = substr($url,0,strpos($url,'?'));
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$pathInfo = pathinfo($url);
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if(count($pathInfo) < 3) $this->raiseError();
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if(!in_array($pathInfo['extension'],array('jpeg','jpg','jpe','png','gif','JPEG','JPG','JPE','PNG','GIF'))) $this->raiseError();
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$path = explode('/',$pathInfo['dirname']);
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if(count($path) > 1) {
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$assetId = array_search('assets',$path);
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if($assetId > 0) {
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$realPath = '../' . implode('/',array_slice($path,$assetId,count($path) - $assetId));
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if(strpos($pathInfo['basename'],'AssetLibraryPreview') !== false) {
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$realPath .= '/' . substr($pathInfo['basename'],strpos($pathInfo['basename'],'-'));
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} else {
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$realPath .= '/' . $pathInfo['basename'];
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}
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} else {
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$this->raiseError();
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}
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if(file_exists($realPath)) {
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return true;
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} else {
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$this->raiseError();
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}
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} else {
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$this->raiseError();
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}
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}
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/**
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* Method raiser error. Error is showed using statusMessage function.
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*
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* @param message - error message
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*
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*/
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private function raiseError($message = "") {
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echo "parent.parent.parent.statusMessage('Error: " . $message . "','bad',false);";
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exit();
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}
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/**
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* Method converts retrieves filename from url
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*
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* @param url
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*
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*/
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private function urlToFilename($url) {
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$path = pathinfo($url);
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return $path['filename'] . "." . substr($path['extension'],0,strpos($path['extension'],'?'));
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}
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}
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