Completed Image Editor

libs/uploads.js

@@ -6,6 +6,7 @@ const path = require('path'),
 			multer  = require('multer'),
 			request = require('request'),
 			url = require('url'),
+			farmhash = require('farmhash'),
 			_ = require('lodash');
 
 var regFolderName = new RegExp("^[a-z0-9][a-z0-9\-]*[a-z0-9]$");
@@ -231,6 +232,78 @@ module.exports = {
 
 		});
 
+	},
+
+	/**
+	 * Move/Rename a file
+	 *
+	 * @param      {String}   uid        The file ID
+	 * @param      {String}   fld        The destination folder
+	 * @param      {String}   nFilename  The new filename (optional)
+	 * @return     {Promise}  Promise of the operation
+	 */
+	moveUploadsFile(uid, fld, nFilename) {
+
+		let self = this;
+
+		return db.UplFolder.findById('f:' + fld).then((folder) => {
+			if(folder) {
+				return db.UplFile.findById(uid).then((originFile) => {
+
+					//-> Check if rename is valid
+
+					let nameCheck = null;
+					if(nFilename) {
+						let originFileObj = path.parse(originFile.filename);
+						nameCheck = lcdata.validateUploadsFilename(nFilename + originFileObj.ext, folder.name);
+					} else {
+						nameCheck = Promise.resolve(originFile.filename);
+					}
+
+					return nameCheck.then((destFilename) => {
+
+						let originFolder = (originFile.folder && originFile.folder !== 'f:') ? originFile.folder.slice(2) : './';
+						let sourceFilePath = path.resolve(self._uploadsPath, originFolder, originFile.filename);
+						let destFilePath = path.resolve(self._uploadsPath, folder.name, destFilename);
+						let preMoveOps = [];
+
+						//-> Check for invalid operations
+
+						if(sourceFilePath === destFilePath) {
+							return Promise.reject(new Error('Invalid Operation!'));
+						}
+
+						//-> Delete DB entry
+
+						preMoveOps.push(db.UplFile.findByIdAndRemove(uid));
+
+						//-> Move thumbnail ahead to avoid re-generation
+
+						if(originFile.category === 'image') {
+							let fUid = farmhash.fingerprint32(folder.name + '/' + destFilename);
+							let sourceThumbPath = path.resolve(self._uploadsThumbsPath, originFile._id + '.png');
+							let destThumbPath = path.resolve(self._uploadsThumbsPath, fUid + '.png');
+							preMoveOps.push(fs.moveAsync(sourceThumbPath, destThumbPath));
+						} else {
+							preMoveOps.push(Promise.resolve(true));
+						}
+
+						//-> Proceed to move actual file
+
+						return Promise.all(preMoveOps).then(() => {
+							return fs.moveAsync(sourceFilePath, destFilePath, {
+								clobber: false
+							});
+						});
+
+					})
+
+				});
+			} else {
+				return Promise.reject(new Error('Invalid Destination Folder'));
+			}
+		});
+
 	}
 
 };