* Change how hashids are generated for web file area: include a 'type'

* Add support for web *batch* downloads via streaming zip file creation
* Add new web download manager and batch mode display
* Add extra info to 'standard' downloads mod/menu

core/file_area_web.js

@@ -22,14 +22,7 @@ const paths			= require('path');
 const async			= require('async');
 const fs			= require('graceful-fs');
 const mimeTypes		= require('mime-types');
-const _				= require('lodash');
+const yazl			= require('yazl');
-
-	/*
-		:TODO:
-		* Load temp download URLs @ startup & set expire timers via scheduler.
-		* At creation, set expire timer via scheduler
-		* 
-	*/
 
 function notEnabledError() {
 	return Errors.General('Web server is not enabled', ErrNotEnabled);
@@ -59,7 +52,7 @@ class FileAreaWebAccess {
 						const routeAdded = self.webServer.instance.addRoute({
 							method	: 'GET',
 							path	: Config.fileBase.web.routePath,
-							handler	: self.routeWebRequestForFile.bind(self),
+							handler	: self.routeWebRequest.bind(self),
 						});
 						return callback(routeAdded ? null : Errors.General('Failed adding route'));
 					} else {
@@ -81,6 +74,13 @@ class FileAreaWebAccess {
 		return this.webServer.instance.isEnabled();
 	}
 
+	static getHashIdTypes() {
+		return {
+			SingleFile		: 0,
+			BatchArchive	: 1,
+		};
+	}
+
 	load(cb) {
 		//
 		//	Load entries, register expiration timers
@@ -141,12 +141,14 @@ class FileAreaWebAccess {
 			WHERE hash_id = ?`,
 			[ hashId ],
 			(err, result) => {
-				if(err) {
+				if(err || !result) {
-					return cb(err);
+					return cb(err ? err : Errors.DoesNotExist('Invalid or missing hash ID'));
 				}
 
 				const decoded = this.hashids.decode(hashId);
-				if(!result || 2 !== decoded.length) {
+
+				//	decode() should provide an array of [ userId, hashIdType, id, ... ]
+				if(!Array.isArray(decoded) || decoded.length < 3) {
 					return cb(Errors.Invalid('Invalid or unknown hash ID'));
 				}
 
@@ -155,7 +157,8 @@ class FileAreaWebAccess {
 					{
 						hashId			: hashId,
 						userId			: decoded[0],
-						fileId			: decoded[1],
+						hashIdType		: decoded[1],
+						fileIds			: decoded.slice(2),
 						expireTimestamp	: moment(result.expire_timestamp),
 					}
 				);
@@ -163,46 +166,26 @@ class FileAreaWebAccess {
 		);
 	}
 
-	getHashId(client, fileEntry) {
+	getSingleFileHashId(client, fileEntry) {
-		//
+		return this.getHashId(client, FileAreaWebAccess.getHashIdTypes().SingleFile, [ fileEntry.fileId ] );
-		//	Hashid is a unique combination of userId & fileId
-		//
-		return this.hashids.encode(client.user.userId, fileEntry.fileId);
 	}
 
-	buildTempDownloadLink(client, fileEntry, hashId) {		
+	getBatchArchiveHashId(client, batchId) {
-		hashId = hashId || this.getHashId(client, fileEntry);
+		return this.getHashId(client, FileAreaWebAccess.getHashIdTypes().BatchArchive, batchId);
+	}
+
+	getHashId(client, hashIdType, identifier) {
+		return this.hashids.encode(client.user.userId, hashIdType, identifier);
+	}
+
+	buildSingleFileTempDownloadLink(client, fileEntry, hashId) {
+		hashId = hashId || this.getSingleFileHashId(client, fileEntry);
 
 		return this.webServer.instance.buildUrl(`${Config.fileBase.web.path}${hashId}`);
-		/*
-			
-		//
-		//	Create a URL such as
-		//	https://l33t.codes:44512/f/qFdxyZr
-		//
-		//	Prefer HTTPS over HTTP. Be explicit about the port
-		//	only if non-standard.
-		//		
-		let schema;
-		let port;
-		if(_.isString(Config.contentServers.web.overrideUrlPrefix)) {
-			return `${Config.contentServers.web.overrideUrlPrefix}${Config.fileBase.web.path}${hashId}`;
-		} else {
-			if(Config.contentServers.web.https.enabled) {
-				schema	= 'https://';
-				port	=  (443 === Config.contentServers.web.https.port) ?
-					'' :
-					`:${Config.contentServers.web.https.port}`;
-			} else {
-				schema	= 'http://';
-				port	= (80 === Config.contentServers.web.http.port) ?
-					'' :
-					`:${Config.contentServers.web.http.port}`;
 	}
 
-			return `${schema}${Config.contentServers.web.domain}${port}${Config.fileBase.web.path}${hashId}`;
+	buildBatchArchiveTempDownloadLink(client, hashId) {
-		}
+		return this.webServer.instance.buildUrl(`${Config.fileBase.web.path}${hashId}`);
-		*/
 	}
 
 	getExistingTempDownloadServeItem(client, fileEntry, cb) {
@@ -210,49 +193,95 @@ class FileAreaWebAccess {
 			return cb(notEnabledError());
 		}	
 
-		const hashId = this.getHashId(client, fileEntry);
+		const hashId = this.getSingleFileHashId(client, fileEntry);
 		this.loadServedHashId(hashId, (err, servedItem) => {
 			if(err) {
 				return cb(err);
 			}
 
-			servedItem.url = this.buildTempDownloadLink(client, fileEntry); 
+			servedItem.url = this.buildSingleFileTempDownloadLink(client, fileEntry); 
 
 			return cb(null, servedItem);
 		});		
 	}
 
+	_addOrUpdateHashIdRecord(dbOrTrans, hashId, expireTime, cb) {
+		//	add/update rec with hash id and (latest) timestamp
+		dbOrTrans.run(
+			`REPLACE INTO file_web_serve (hash_id, expire_timestamp)
+			VALUES (?, ?);`,
+			[ hashId, getISOTimestampString(expireTime) ],
+			err => {
+				if(err) {
+					return cb(err);
+				}
+
+				this.scheduleExpire(hashId, expireTime);
+				
+				return cb(null);
+			}
+		);
+	}
+
 	createAndServeTempDownload(client, fileEntry, options, cb) {
 		if(!this.isEnabled()) {
 			return cb(notEnabledError());
 		}
 
-		const hashId		= this.getHashId(client, fileEntry);
+		const hashId		= this.getSingleFileHashId(client, fileEntry);
-		const url			= this.buildTempDownloadLink(client, fileEntry, hashId);		
+		const url			= this.buildSingleFileTempDownloadLink(client, fileEntry, hashId);
 		options.expireTime	= options.expireTime || moment().add(2, 'days');
 
-		//	add/update rec with hash id and (latest) timestamp
+		this._addOrUpdateHashIdRecord(FileDb, hashId, options.expireTime, err => {
-		FileDb.run(
+			return cb(err, url);
-			`REPLACE INTO file_web_serve (hash_id, expire_timestamp)
+		});
-			VALUES (?, ?);`,
+	}
-			[ hashId, getISOTimestampString(options.expireTime) ],
+
-			err => {
+	createAndServeTempBatchDownload(client, fileEntries, options, cb) {
+		if(!this.isEnabled()) {
+			return cb(notEnabledError());
+		}
+
+		const batchId		= moment().utc().unix();
+		const hashId		= this.getBatchArchiveHashId(client, batchId);
+		const url			= this.buildBatchArchiveTempDownloadLink(client, hashId);
+		options.expireTime	= options.expireTime || moment().add(2, 'days');
+
+		FileDb.beginTransaction( (err, trans) => {
 			if(err) {
 				return cb(err);
 			}
 
-				this.scheduleExpire(hashId, options.expireTime);
+			this._addOrUpdateHashIdRecord(trans, hashId, options.expireTime, err => {
+				if(err) {
+					return trans.rollback( () => {
+						return cb(err);
+					});
+				}
 
-				return cb(null, url);
+				async.eachSeries(fileEntries, (entry, nextEntry) => {
+					trans.run(
+						`INSERT INTO file_web_serve_batch (hash_id, file_id)
+						VALUES (?, ?);`,
+						[ hashId, entry.fileId ],
+						err => {
+							return nextEntry(err);
 						}
 					);
+				}, err => {
+					trans[err ? 'rollback' : 'commit']( () => {
+						return cb(err, url);
+					});
+				});
+			});
+		});
 	}
 
 	fileNotFound(resp) {
 		return this.webServer.instance.fileNotFound(resp);
 	}
 
-	routeWebRequestForFile(req, resp) {
+	routeWebRequest(req, resp) {
 		const hashId = paths.basename(req.url);
 
 		this.loadServedHashId(hashId, (err, servedItem) => {
@@ -261,7 +290,25 @@ class FileAreaWebAccess {
 				return this.fileNotFound(resp);
 			}
 
+			const hashIdTypes = FileAreaWebAccess.getHashIdTypes();
+			switch(servedItem.hashIdType) {
+				case hashIdTypes.SingleFile :
+					return this.routeWebRequestForSingleFile(servedItem, req, resp);
+
+				case hashIdTypes.BatchArchive :
+					return this.routeWebRequestForBatchArchive(servedItem, req, resp);
+
+				default :
+					return this.fileNotFound(resp);
+			}
+		});
+	}
+
+	routeWebRequestForSingleFile(servedItem, req, resp) {
 		const fileEntry = new FileEntry();
+
+		servedItem.fileId = servedItem.fileIds[0];
+
 		fileEntry.load(servedItem.fileId, err => {
 			if(err) {
 				return this.fileNotFound(resp);
@@ -298,7 +345,102 @@ class FileAreaWebAccess {
 				return readStream.pipe(resp);
 			});
 		});
+	}
+
+	routeWebRequestForBatchArchive(servedItem, req, resp) {
+		//
+		//	We are going to build an on-the-fly zip file stream of 1:n
+		//	files in the batch.
+		//
+		//	First, collect all file IDs
+		//
+		const self = this;
+
+		async.waterfall(
+			[
+				function fetchFileIds(callback) {
+					FileDb.all(
+						`SELECT file_id
+						FROM file_web_serve_batch
+						WHERE hash_id = ?;`,
+						[ servedItem.hashId ],
+						(err, fileIdRows) => {
+							if(err || !Array.isArray(fileIdRows) || 0 === fileIdRows.length) {
+								return callback(Errors.DoesNotExist('Could not get file IDs for batch'));
+							}
+
+							return callback(null, fileIdRows.map(r => r.file_id));
+						}
+					);
+				},
+				function loadFileEntries(fileIds, callback) {
+					const filePaths = [];
+					async.eachSeries(fileIds, (fileId, nextFileId) => {
+						const fileEntry = new FileEntry();
+						fileEntry.load(fileId, err => {
+							if(!err) {
+								filePaths.push(fileEntry.filePath);
+							}
+							return nextFileId(err);
 						});
+					}, err => {
+						if(err) {
+							return callback(Errors.DoesNotExist('Coudl not load file IDs for batch'));
+						}
+
+						return callback(null, filePaths);
+					});
+				},
+				function createAndServeStream(filePaths, callback) {
+					const zipFile = new yazl.ZipFile();
+
+					filePaths.forEach(fp => {
+						zipFile.addFile(
+							fp,					//	path to physical file
+							paths.basename(fp),	//	filename/path *stored in archive*
+							{
+								compress : false,	//	:TODO: do this smartly - if ext is in set = false, else true via isArchive() or such... mimeDB has this for us.
+							}
+						);
+					});
+
+					zipFile.end( finalZipSize => {
+						if(-1 === finalZipSize) {
+							return callback(Errors.UnexpectedState('Unable to acquire final zip size'));
+						}
+
+						resp.on('close', () => {
+							//	connection closed *before* the response was fully sent
+							//	:TODO: Log and such
+						});
+
+						resp.on('finish', () => {
+							//	transfer completed fully
+							self.updateDownloadStatsForUserIdAndSystem(servedItem.userId, finalZipSize);
+						});
+
+						const batchFileName = `batch_${servedItem.hashId}.zip`;
+
+						const headers = {
+							'Content-Type'			: mimeTypes.contentType(batchFileName) || mimeTypes.contentType('.bin'),
+							'Content-Length'		: finalZipSize,
+							'Content-Disposition'	: `attachment; filename="${batchFileName}"`,
+						};
+
+						resp.writeHead(200, headers);
+						return zipFile.outputStream.pipe(resp);
+					});
+				}
+			],
+			err => {
+				if(err) {
+					//	:TODO: Log me!
+					return this.fileNotFound(resp);
+				}
+
+				//	...otherwise, we would have called resp() already.
+			}
+		);
 	}
 
 	updateDownloadStatsForUserIdAndSystem(userId, dlBytes, cb) {

mods/file_base_download_manager.js

@@ -9,10 +9,12 @@ const theme					= require('../core/theme.js');
 const ansi					= require('../core/ansi_term.js');
 const Errors				= require('../core/enig_error.js').Errors;
 const stringFormat			= require('../core/string_format.js');
+const FileAreaWeb			= require('../core/file_area_web.js');
 
 //	deps
 const async					= require('async');
 const _						= require('lodash');
+const moment				= require('moment');
 
 exports.moduleInfo = {
 	name		: 'File Base Download Queue Manager',
@@ -22,17 +24,15 @@ exports.moduleInfo = {
 
 const FormIds = {
 	queueManager	: 0,
-	details			: 1,
 };
 
 const MciViewIds = {
 	queueManager : {
 		queue				: 1,
 		navMenu				: 2,
-	},
-	details : {
 
-	}
+		customRangeStart	: 10,
+	},
 };
 
 exports.getModule = class FileBaseDownloadQueueManager extends MenuModule {
@@ -126,6 +126,26 @@ exports.getModule = class FileBaseDownloadQueueManager extends MenuModule {
 		return cb(null);
 	}
 
+	displayWebDownloadLinkForFileEntry(fileEntry) {
+		FileAreaWeb.getExistingTempDownloadServeItem(this.client, fileEntry, (err, serveItem) => {
+			if(serveItem && serveItem.url) {
+				const webDlExpireTimeFormat = this.menuConfig.config.webDlExpireTimeFormat || 'YYYY-MMM-DD @ h:mm';
+
+				fileEntry.webDlLink 	= ansi.vtxHyperlink(this.client, serveItem.url) + serveItem.url;
+				fileEntry.webDlExpire	= moment(serveItem.expireTimestamp).format(webDlExpireTimeFormat);
+			} else {
+				fileEntry.webDlLink		= '';
+				fileEntry.webDlExpire	= '';
+			}
+
+			this.updateCustomViewTextsWithFilter(
+				'queueManager',
+				MciViewIds.queueManager.customRangeStart, fileEntry,
+				{ filter : [ '{webDlLink}', '{webDlExpire}' ] }
+			);
+		});
+	}
+
 	updateDownloadQueueView(cb) {
 		const queueView = this.viewControllers.queueManager.getView(MciViewIds.queueManager.queue);
 		if(!queueView) {
@@ -138,7 +158,13 @@ exports.getModule = class FileBaseDownloadQueueManager extends MenuModule {
 		queueView.setItems(this.dlQueue.items.map( queueItem => stringFormat(queueListFormat, queueItem) ) );
 		queueView.setFocusItems(this.dlQueue.items.map( queueItem => stringFormat(focusQueueListFormat, queueItem) ) );
 
+		queueView.on('index update', idx => {
+			const fileEntry = this.dlQueue.items[idx];
+			this.displayWebDownloadLinkForFileEntry(fileEntry);
+		});
+
 		queueView.redraw();
+		this.displayWebDownloadLinkForFileEntry(this.dlQueue.items[0]);
 
 		return cb(null);
 	}

mods/file_base_web_download_manager.js

@@ -0,0 +1,287 @@
+/* jslint node: true */
+'use strict';
+
+//	ENiGMA½
+const MenuModule			= require('../core/menu_module.js').MenuModule;
+const ViewController		= require('../core/view_controller.js').ViewController;
+const DownloadQueue			= require('../core/download_queue.js');
+const theme					= require('../core/theme.js');
+const ansi					= require('../core/ansi_term.js');
+const Errors				= require('../core/enig_error.js').Errors;
+const stringFormat			= require('../core/string_format.js');
+const FileAreaWeb			= require('../core/file_area_web.js');
+const ErrNotEnabled			= require('../core/enig_error.js').ErrorReasons.NotEnabled;
+const Config				= require('../core/config.js').config;
+
+//	deps
+const async					= require('async');
+const _						= require('lodash');
+const moment				= require('moment');
+
+exports.moduleInfo = {
+	name		: 'File Base Download Web Queue Manager',
+	desc		: 'Module for interacting with web backed download queue/batch',
+	author		: 'NuSkooler',
+};
+
+const FormIds = {
+	queueManager	: 0
+};
+
+const MciViewIds = {
+	queueManager : {
+		queue				: 1,
+		navMenu				: 2,
+		
+		customRangeStart	: 10,
+	}
+};
+
+exports.getModule = class FileBaseWebDownloadQueueManager extends MenuModule {
+	
+	constructor(options) {
+		super(options);
+
+		this.dlQueue = new DownloadQueue(this.client);
+
+		this.menuMethods = {
+			removeItem : (formData, extraArgs, cb) => {
+				const selectedItem = this.dlQueue.items[formData.value.queueItem];
+				if(!selectedItem) {
+					return cb(null);
+				}
+
+				this.dlQueue.removeItems(selectedItem.fileId);
+
+				//	:TODO: broken: does not redraw menu properly - needs fixed!
+				return this.removeItemsFromDownloadQueueView(formData.value.queueItem, cb);
+			},
+			clearQueue : (formData, extraArgs, cb) => {
+				this.dlQueue.clear();
+								
+				//	:TODO: broken: does not redraw menu properly - needs fixed!
+				return this.removeItemsFromDownloadQueueView('all', cb);
+			},
+			getBatchLink : (formData, extraArgs, cb) => {
+				return this.generateAndDisplayBatchLink(cb);
+			}
+		};
+	}
+
+	initSequence() {
+		if(0 === this.dlQueue.items.length) {
+			return this.gotoMenu(this.menuConfig.config.emptyQueueMenu || 'fileBaseDownloadManagerEmptyQueue');
+		}
+
+		const self = this;
+
+		async.series(
+			[
+				function beforeArt(callback) {
+					return self.beforeArt(callback);
+				},
+				function display(callback) {
+					return self.displayQueueManagerPage(false, callback);
+				}
+			],
+			() => {
+				return self.finishedLoading();
+			}
+		);
+	}
+
+	removeItemsFromDownloadQueueView(itemIndex, cb) {
+		const queueView = this.viewControllers.queueManager.getView(MciViewIds.queueManager.queue);
+		if(!queueView) {
+			return cb(Errors.DoesNotExist('Queue view does not exist'));
+		}
+
+		if('all' === itemIndex) {
+			queueView.setItems([]);
+			queueView.setFocusItems([]);
+		} else {
+			queueView.removeItem(itemIndex);
+		}
+
+		queueView.redraw();
+		return cb(null);
+	}
+
+	displayFileInfoForFileEntry(fileEntry) {
+		this.updateCustomViewTextsWithFilter(
+			'queueManager', 
+			MciViewIds.queueManager.customRangeStart, fileEntry,
+			{ filter : [ '{webDlLink}', '{webDlExpire}', '{fileName}' ] }	//	:TODO: Others....
+		);
+	}
+
+	updateDownloadQueueView(cb) {
+		const queueView = this.viewControllers.queueManager.getView(MciViewIds.queueManager.queue);
+		if(!queueView) {
+			return cb(Errors.DoesNotExist('Queue view does not exist'));
+		}
+
+		const queueListFormat		= this.menuConfig.config.queueListFormat || '{webDlLink}';
+		const focusQueueListFormat	= this.menuConfig.config.focusQueueListFormat || queueListFormat;
+
+		queueView.setItems(this.dlQueue.items.map( queueItem => stringFormat(queueListFormat, queueItem) ) );
+		queueView.setFocusItems(this.dlQueue.items.map( queueItem => stringFormat(focusQueueListFormat, queueItem) ) );
+
+		queueView.on('index update', idx => {
+			const fileEntry = this.dlQueue.items[idx];
+			this.displayFileInfoForFileEntry(fileEntry);
+		});
+
+		queueView.redraw();
+		this.displayFileInfoForFileEntry(this.dlQueue.items[0]);
+
+		return cb(null);
+	}
+
+	generateAndDisplayBatchLink(cb) {
+		const expireTime = moment().add(Config.fileBase.web.expireMinutes, 'minutes');
+
+		FileAreaWeb.createAndServeTempBatchDownload(
+			this.client, 
+			this.dlQueue.items,
+			{
+				expireTime : expireTime
+			},
+			(err, webBatchDlLink) => {
+				//	:TODO: handle not enabled -> display such
+				if(err) {
+					return cb(err);
+				}
+
+				const webDlExpireTimeFormat = this.menuConfig.config.webDlExpireTimeFormat || 'YYYY-MMM-DD @ h:mm';
+
+				const formatObj = {
+					webBatchDlLink		: ansi.vtxHyperlink(this.client, webBatchDlLink) + webBatchDlLink,
+					webBatchDlExpire	: expireTime.format(webDlExpireTimeFormat),
+				};
+
+				this.updateCustomViewTextsWithFilter(
+					'queueManager',
+					MciViewIds.queueManager.customRangeStart, 
+					formatObj,
+					{ filter : Object.keys(formatObj).map(k => '{' + k + '}' ) }
+				);
+
+				return cb(null);
+			}
+		);
+	}
+
+	displayQueueManagerPage(clearScreen, cb) {
+		const self = this;
+
+		async.series(
+			[
+				function prepArtAndViewController(callback) {
+					return self.displayArtAndPrepViewController('queueManager', { clearScreen : clearScreen }, callback);
+				},
+				function prepareQueueDownloadLinks(callback) {
+					const webDlExpireTimeFormat = self.menuConfig.config.webDlExpireTimeFormat || 'YYYY-MMM-DD @ h:mm';
+
+					async.each(self.dlQueue.items, (fileEntry, nextFileEntry) => {
+						FileAreaWeb.getExistingTempDownloadServeItem(self.client, fileEntry, (err, serveItem) => {
+							if(err) {
+								if(ErrNotEnabled === err.reasonCode) {
+									return nextFileEntry(err);	//	we should have caught this prior	
+								}
+
+								const expireTime = moment().add(Config.fileBase.web.expireMinutes, 'minutes');
+								
+								FileAreaWeb.createAndServeTempDownload(
+									self.client, 
+									fileEntry,
+									{ expireTime : expireTime },
+									(err, url) => {
+										if(err) {
+											return nextFileEntry(err);
+										}
+
+										fileEntry.webDlLinkRaw	= url;
+										fileEntry.webDlLink		= ansi.vtxHyperlink(self.client, url) + url;										
+										fileEntry.webDlExpire	= expireTime.format(webDlExpireTimeFormat);
+
+										return nextFileEntry(null);
+									}
+								);
+							} else {								
+								fileEntry.webDlLinkRaw	= serveItem.url;
+								fileEntry.webDlLink		= ansi.vtxHyperlink(self.client, serveItem.url) + serveItem.url;
+								fileEntry.webDlExpire	= moment(serveItem.expireTimestamp).format(webDlExpireTimeFormat);
+								return nextFileEntry(null);
+							}
+						});
+					}, err => {
+						return callback(err);
+					});
+				},
+				function populateViews(callback) {
+					return self.updateDownloadQueueView(callback);
+				}
+			],
+			err => {
+				if(cb) {
+					return cb(err);
+				}
+			}
+		);
+	}
+
+	displayArtAndPrepViewController(name, options, cb) {
+		const self		= this;
+		const config	= this.menuConfig.config;
+
+		async.waterfall(
+			[
+				function readyAndDisplayArt(callback) {
+					if(options.clearScreen) {
+						self.client.term.rawWrite(ansi.resetScreen());
+					}
+
+					theme.displayThemedAsset(
+						config.art[name],
+						self.client,
+						{ font : self.menuConfig.font, trailingLF : false },
+						(err, artData) => {
+							return callback(err, artData);
+						}
+					);
+				},
+				function prepeareViewController(artData, callback) {
+					if(_.isUndefined(self.viewControllers[name])) {
+						const vcOpts = {
+							client		: self.client,
+							formId		: FormIds[name],
+						};
+
+						if(!_.isUndefined(options.noInput)) {
+							vcOpts.noInput = options.noInput;
+						}
+
+						const vc = self.addViewController(name, new ViewController(vcOpts));
+
+						const loadOpts = {
+							callingMenu		: self,
+							mciMap			: artData.mciMap,
+							formId			: FormIds[name],
+						};
+
+						return vc.loadFromMenuConfig(loadOpts, callback);
+					}
+					
+					self.viewControllers[name].setFocus(true);
+					return callback(null);
+										
+				},
+			],
+			err => {
+				return cb(err);
+			}
+		);
+	}
+};
+	

package.json

@@ -47,7 +47,8 @@
     "temptmp": "^1.0.0",
     "uuid": "^3.1.0",
     "uuid-parse": "^1.0.0",
-    "ws": "^3.1.0"
+    "ws": "^3.1.0",
+    "yazl" : "^2.4.2"
   },
   "devDependencies": {},
   "engines": {