606 lines
20 KiB
JavaScript
606 lines
20 KiB
JavaScript
/*
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Copyright 2008-2015 Clipperz Srl
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This file is part of Clipperz, the online password manager.
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For further information about its features and functionalities please
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refer to http://www.clipperz.com.
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* Clipperz is free software: you can redistribute it and/or modify it
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under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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* Clipperz is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Affero General Public License for more details.
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* You should have received a copy of the GNU Affero General Public
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License along with Clipperz. If not, see http://www.gnu.org/licenses/.
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*/
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"use strict";
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Clipperz.Base.module('Clipperz.PM.UI');
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Clipperz.PM.UI.AttachmentController = function(someParameters) {
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this.MAX_SIMULTANEOUS_READ = 1;
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this.MAX_SIMULTANEOUS_UPLOAD = 1;
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this.MAX_SIMULTANEOUS_DOWNLOAD = 1;
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this.MAX_SIMULTANEOUS_ENCRYPT = 1;
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this.MAX_SIMULTANEOUS_DECRYPT = 1;
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this.LATEST_ENCRYPTION_VERSION = '1.0'; // Versions aren't handled completely yet!
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this.fileQueue = [];
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// this.notifications = [];
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this.operationsCount = null;
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this.encryptedDocument = null;
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this.uploadMessageCallback = someParameters['uploadMessageCallback'];
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this.downloadMessageCallback = someParameters['downloadMessageCallback'];
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this.reloadServerStatusCallback = someParameters['reloadServerStatusCallback'];
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// this.cryptoObject = window.crypto || window.msCrypto; // Not needed anymore because of polyfill
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this.cryptoObject = window.crypto
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return this;
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}
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MochiKit.Base.update(Clipperz.PM.UI.AttachmentController.prototype, {
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toString: function () {
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return "Clipperz.PM.UI.AttachmentController";
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},
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//-------------------------------------------------------------------------
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/*
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notifyUpdate: function() {
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// MochiKit.Signal.signal(Clipperz.Signal.NotificationCenter, 'updateAttachmentQueueInfo', this.getQueueInfo(), this.getNotificationsInfo());
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MochiKit.Signal.signal(Clipperz.Signal.NotificationCenter, 'updateNotifications');
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},
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*/
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getQueueInfo: function() {
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return this.fileQueue;
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},
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/*
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getNotificationsInfo: function() {
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return this.notifications;
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},
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*/
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//=========================================================================
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// Entry points
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//=========================================================================
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addAttachment: function (anAttachment) {
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var deferredResult;
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var actualDeferredResult;
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actualDeferredResult = new Clipperz.Async.Deferred("Clipperz.PM.UI.AttachmentController.uploadAttachment-result", {trace:false});
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actualDeferredResult.addMethod(anAttachment, 'setValue', 'hash');
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deferredResult = new Clipperz.Async.Deferred("Clipperz.PM.UI.AttachmentController.uploadAttachment", {trace:false});
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deferredResult.collectResults({
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'_attachment': MochiKit.Base.partial(MochiKit.Async.succeed, anAttachment),
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'_record': MochiKit.Base.method(anAttachment, 'record'),
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'reference': MochiKit.Base.method(anAttachment, 'reference'),
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'meta': MochiKit.Base.method(anAttachment, 'metadata'),
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'key': MochiKit.Base.method(anAttachment, 'key'),
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'nonce': MochiKit.Base.method(anAttachment, 'nonce'),
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'status': MochiKit.Base.partial(MochiKit.Async.succeed, 'WAITING_READ'),
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'file': MochiKit.Base.method(anAttachment, 'file'),
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'recordReference': MochiKit.Base.method(anAttachment.record(), 'reference'),
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'process': MochiKit.Base.partial(MochiKit.Async.succeed, 'UPLOAD'), // Used only to differentiate notifications
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}, {trace: false});
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deferredResult.addCallback(function (someInfo) { someInfo['deferredResult'] = actualDeferredResult; return someInfo; });
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deferredResult.addMethod(this, 'addFileToQueue');
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deferredResult.callback();
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// return deferredResult;
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return actualDeferredResult;
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},
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getAttachment: function(anAttachment, aMessageCallback) {
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if (this.getQueuePosition(anAttachment.reference()) >= 0) {
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this.removeFileFromQueue(anAttachment.reference());
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}
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var deferredResult;
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deferredResult = new Clipperz.Async.Deferred("Clipperz.PM.UI.AttachmentController.downloadAttachment", {trace:false});
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deferredResult.collectResults({
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'_attachment': MochiKit.Base.partial(MochiKit.Async.succeed, anAttachment),
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'_record': MochiKit.Base.method(anAttachment, 'record'),
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'reference': MochiKit.Base.method(anAttachment, 'reference'),
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'meta': MochiKit.Base.method(anAttachment, 'metadata'),
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'key': MochiKit.Base.method(anAttachment, 'key'),
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'nonce': MochiKit.Base.method(anAttachment, 'nonce'),
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'status': MochiKit.Base.partial(MochiKit.Async.succeed, 'WAITING_DOWNLOAD'),
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'messageCallback': MochiKit.Async.succeed(aMessageCallback),
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'process': MochiKit.Base.partial(MochiKit.Async.succeed, 'DOWNLOAD'), // Used only to differentiate notifications
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}, {trace: false});
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deferredResult.addCallback(function(aResult){
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MochiKit.Base.update(aResult, {'messageCallback': aMessageCallback});
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return aResult;
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});
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deferredResult.addMethod(this, 'addFileToQueue');
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deferredResult.callback();
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return deferredResult;
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},
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cancelAttachment: function(anAttachment) {
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var deferredResult;
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var reference = anAttachment.reference()
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var queueElement = this.getQueueElement(reference);
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var isElementInProgress = (queueElement && queueElement['status'] != 'DONE' && queueElement['status'] != 'CANCELED' && queueElement['status'] != 'FAILED');
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if (isElementInProgress) {
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deferredResult = new Clipperz.Async.Deferred("Clipperz.PM.UI.AttachmentController.cancelAttachment", {trace:false});
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deferredResult.addMethod(this, 'updateFileInQueue', reference, {'status': 'CANCELED'});
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if (queueElement['deferredRequest']) {
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deferredResult.addMethod(queueElement['deferredRequest'], 'cancel');
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}
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deferredResult.callback();
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// TODO: We may also want do delete stuff in the queue element
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} else {
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deferredResult = MochiKit.Async.succeed();
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}
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return deferredResult;
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},
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//=========================================================================
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// Queue management
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//=========================================================================
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dispatchQueueOperations: function() {
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var currentElement;
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var processNextElements;
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var count = this.updateOperationsCount();
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// this.notifyUpdate();
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processNextElements = true;
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for (i in this.fileQueue) {
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if (processNextElements) {
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currentElement = this.fileQueue[i];
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switch (currentElement['status']) {
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case 'WAITING_READ':
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if ((count['READING']) < this.MAX_SIMULTANEOUS_READ) {
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this.readFile(currentElement['reference'], currentElement['file']);
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processNextElements = false;
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}
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break;
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case 'WAITING_ENCRYPT':
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if (count['ENCRYPTING'] < this.MAX_SIMULTANEOUS_ENCRYPT) {
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this.encryptFile(currentElement['reference'], currentElement['originalArray'], currentElement['key'], currentElement['nonce']);
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processNextElements = false;
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}
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break;
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case 'WAITING_UPLOAD':
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if (count['UPLOADING'] < this.MAX_SIMULTANEOUS_UPLOAD) {
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this.uploadFile(currentElement['reference'], currentElement['encryptedArray']);
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processNextElements = false;
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}
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break;
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case 'WAITING_DOWNLOAD':
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if (count['DOWNLOADING'] < this.MAX_SIMULTANEOUS_DOWNLOAD) {
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this.downloadFile(currentElement['reference'], currentElement['messageCallback']);
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processNextElements = false;
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}
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break;
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case 'WAITING_DECRYPT':
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if (count['DECRYPTING'] < this.MAX_SIMULTANEOUS_DECRYPT) {
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this.decryptFile(currentElement['reference'], currentElement['encryptedArray'], currentElement['key'], currentElement['nonce']);
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processNextElements = false;
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}
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break;
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case 'WAITING_SAVE':
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this.saveFile(currentElement['reference'], currentElement['decryptedArray'], currentElement['meta']['name'], currentElement['meta']['type']);
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processNextElements = false;
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// Clipperz.Sound.beep();
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break;
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}
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}
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}
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},
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updateOperationsCount: function() {
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var count;
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count = {
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'WAITING_READ': 0,
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'READING': 0,
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'WAITING_ENCRYPT': 0,
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'ENCRYPTING': 0,
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'WAITING_UPLOAD': 0,
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'UPLOADING': 0,
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'WAITING_DOWNLOAD': 0,
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'DOWNLOADING': 0,
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'WAITING_DECRYPT': 0,
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'DECRYPTING': 0,
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'WAITING_SAVE': 0,
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'DONE': 0,
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'CANCELED': 0,
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'FAILED': 0,
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};
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for (var i in this.fileQueue) {
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count[this.fileQueue[i]['status']]++;
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}
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this.operationsCount = count;
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return this.operationsCount;
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},
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addFileToQueue: function(someParameters) {
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this.fileQueue.push(someParameters);
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this.dispatchQueueOperations();
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},
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removeFileFromQueue: function(aFileReference) {
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this.fileQueue.splice(this.getQueuePosition(aFileReference), 1);
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this.dispatchQueueOperations();
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},
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getQueueElement: function(aFileReference) {
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var i = this.getQueuePosition(aFileReference);
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return this.fileQueue[i];
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},
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updateFileInQueue: function(aFileReference, someParameters) {
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var queuePosition = this.getQueuePosition(aFileReference);
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MochiKit.Base.update(this.fileQueue[queuePosition], someParameters);
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if ((someParameters['status'] == 'DONE') || (someParameters['status'] == 'FAILED')) {
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this.addNotification(this.fileQueue[queuePosition], someParameters['status']);
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}
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this.dispatchQueueOperations();
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},
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appendResult: function(aFileReference, anArray) {
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var queueElement = this.getQueueElement(aFileReference);
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queueElement['result'].set(anArray, queueElement['currentByte']);
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},
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getQueuePosition: function(aFileReference) {
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var result;
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result = -1;
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for (var i in this.fileQueue) {
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if (this.fileQueue[i].reference == aFileReference) {
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result = i;
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}
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}
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return result;
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},
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//=========================================================================
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// Notifications
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//=========================================================================
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addNotification: function(aQueueElement, aStatus) {
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//console.log("ADD ATTACHMENT NOTIFICATION", aQueueElement);
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var messagePrefix = "";
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var message;
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var filename;
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var level;
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if (aStatus == 'DONE') {
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level = 'info';
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if (aQueueElement['process'] == 'DOWNLOAD') {
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messagePrefix = "downloaded attachment ";
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} else if (aQueueElement['process'] == 'UPLOAD') {
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messagePrefix = "uploaded attachment ";
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}
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} else if (aStatus == 'FAILED') {
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level = 'error';
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if (aQueueElement['process'] == 'DOWNLOAD') {
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messagePrefix = "error downloading attachment ";
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} else if (aQueueElement['process'] == 'UPLOAD') {
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messagePrefix = "error uploading attachment ";
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}
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} else {
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level = 'warning';
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messagePrefix = "???";
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}
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filename = aQueueElement['meta']['name'];
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message = messagePrefix + filename;
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MochiKit.Signal.signal(Clipperz.Signal.NotificationCenter, 'addNotification', {'message':message, 'level':level});
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},
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/*
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removeNotification: function(aNotificationId) {
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var i, position;
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position = -1;
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for (i in this.notifications) {
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if (this.notifications[i]['id'] == aNotificationId) {
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position = i;
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}
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}
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if (position >= 0) {
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this.notifications.splice(position, 1);
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}
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// this.notifyUpdate();
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},
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*/
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/*
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randomId: function() {
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return Clipperz.Crypto.randomKey();
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// return Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32).toHexString().substring(2);
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},
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*/
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//=========================================================================
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// Queue Processing: READ
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//=========================================================================
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readFile: function(aFileReference, aFile) {
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var reader = new FileReader();
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this.updateFileInQueue(aFileReference, {
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'status': 'READING',
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});
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reader.onload = MochiKit.Base.method(this, 'readFileOnload', aFileReference);
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reader.readAsArrayBuffer(aFile);
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},
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readFileOnload: function(aFileReference, anEvent) {
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var fileContent;
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var fileContentSha256Hash;
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fileContent = new Uint8Array(anEvent.target.result);
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fileContentSha256Hash = npm.bitcoin.crypto.sha256(fileContent).toString('hex');
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this.getQueueElement(aFileReference)['deferredResult'].callback(fileContentSha256Hash);
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this.updateFileInQueue(aFileReference, {
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'status': 'WAITING_ENCRYPT',
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'originalArray': fileContent,
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})
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},
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//=========================================================================
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// Queue Processing: ENCRYPT
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//=========================================================================
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encryptFile: function(aFileReference, anArrayBuffer, aKey, aNonce) {
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this.updateFileInQueue(aFileReference, {
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'status': 'ENCRYPTING',
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});
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this.cryptoObject.subtle.importKey(
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"raw",
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aKey, //this is an example jwk key, "raw" would be an ArrayBuffer
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{ name: "AES-CBC" }, //this is the algorithm options
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false, //whether the key is extractable (i.e. can be used in exportKey)
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["encrypt"] //can be "encrypt", "decrypt", "wrapKey", or "unwrapKey"
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)
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// .then(MochiKit.Base.method(this, 'doEncrypt', aFileReference, anArrayBuffer, aNonce))
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.then(this.doEncrypt.bind(this,aFileReference, anArrayBuffer, aNonce))
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.catch(MochiKit.Base.method(this, 'handleException', aFileReference, 'encryptFile(): encryption failed'));
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},
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doEncrypt: function(aFileReference, anArrayBuffer, anIV, aWebcryptoKey) {
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this.cryptoObject.subtle.encrypt(
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{
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name: "AES-CBC",
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iv: anIV,
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},
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aWebcryptoKey,
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anArrayBuffer
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)
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.then(MochiKit.Base.method(this, 'doneEncrypt', aFileReference))
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.catch(MochiKit.Base.method(this, 'handleException', aFileReference, 'doEncrypt(): encryption failed'));
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},
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doneEncrypt: function(aFileReference, anArrayBuffer) {
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this.updateFileInQueue(aFileReference, {
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'status': 'WAITING_UPLOAD',
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'encryptedArray': new Uint8Array(anArrayBuffer),
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});
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},
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//=========================================================================
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// Queue Processing: UPLOAD
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//=========================================================================
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uploadFile: function(aFileReference, anEncryptedArray) {
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this.updateFileInQueue(aFileReference, {
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'status': 'UPLOADING',
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'deferredRequest': this.uploadFileRequest(aFileReference, anEncryptedArray),
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'requestProgress': 0,
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});
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},
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uploadFileRequest: function(aFileReference, anEncryptedArray) {
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var deferredResult;
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var queueElement = this.getQueueElement(aFileReference);
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deferredResult = new Clipperz.Async.Deferred("Clipperz.PM.UI.AttachmentController.uploadFileRequest", {trace:false});
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deferredResult.addCallback(this.uploadMessageCallback, {
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'attachmentReference': queueElement['_attachment'].reference(),
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'recordReference': queueElement['_attachment'].record().reference(),
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'arrayBufferData': anEncryptedArray,
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'version': this.LATEST_ENCRYPTION_VERSION,
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}, MochiKit.Base.method(this, 'uploadFileProgress', aFileReference));
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deferredResult.addMethod(this, 'uploadFileDone', aFileReference);
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deferredResult.addErrback(MochiKit.Base.method(this, 'handleException', aFileReference, 'uploadFileRequest(): request failed or canceled'));
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deferredResult.callback();
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return deferredResult;
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},
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uploadFileDone: function(aFileReference, aResult){
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var record = this.getQueueElement(aFileReference)['_record'];
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return Clipperz.Async.callbacks("AttachmentController.uploadFileDone", [
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MochiKit.Base.partial(this.reloadServerStatusCallback, record),
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MochiKit.Base.method(this, 'updateFileInQueue', aFileReference, {
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'status': 'DONE',
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'requestProgress': 1,
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}),
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// add notification
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], {trace:false});
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},
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uploadFileProgress: function(aFileReference, anEvent) {
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var newProgress = (anEvent.lengthComputable) ? (anEvent.loaded / anEvent.total) : -1;
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this.updateFileInQueue(aFileReference, {
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'requestProgress': newProgress,
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});
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},
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//=========================================================================
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// Queue Processing: DOWNLOAD
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//=========================================================================
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downloadFile: function(aFileReference) {
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var deferredRequest;
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var queueElement = this.getQueueElement(aFileReference);
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deferredRequest = new Clipperz.Async.Deferred("Clipperz.PM.UI.AttachmentController.downloadFile", {trace:false});
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deferredRequest.addCallback(this.downloadMessageCallback, queueElement['_attachment'], MochiKit.Base.method(this, 'downloadFileProgress', aFileReference));
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deferredRequest.addMethod(this, 'downloadFileDone', aFileReference);
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deferredRequest.addErrback(MochiKit.Base.method(this, 'handleException', aFileReference, 'downloadFile(): download filed or canceled'));
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deferredRequest.callback();
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this.updateFileInQueue(aFileReference, {
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'status': 'DOWNLOADING',
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'deferredRequest': deferredRequest,
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'requestProgress': 0,
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});
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},
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downloadFileDone: function(aFileReference, aResult){
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var queueElement = this.getQueueElement(aFileReference);
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var encryptedArray = new Uint8Array(aResult);
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this.updateFileInQueue(aFileReference, {
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'status': 'WAITING_DECRYPT',
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'key': queueElement['key'],
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'nonce': queueElement['nonce'],
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'encryptedArray': encryptedArray,
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'requestProgress': 1,
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});
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|
|
},
|
|
|
|
downloadFileProgress: function(aFileReference, anEvent) {
|
|
var newProgress = (anEvent.lengthComputable) ? (anEvent.loaded / anEvent.total) : -1;
|
|
|
|
this.updateFileInQueue(aFileReference, {
|
|
'requestProgress': newProgress,
|
|
});
|
|
},
|
|
|
|
|
|
//=========================================================================
|
|
// Queue Processing: DECRYPT
|
|
//=========================================================================
|
|
|
|
decryptFile: function(aFileReference, anArrayBuffer, aKey, aNonce) {
|
|
this.updateFileInQueue(aFileReference, {
|
|
'status': 'DECRYPTING',
|
|
});
|
|
|
|
this.cryptoObject.subtle.importKey(
|
|
"raw",
|
|
aKey, //this is an example jwk key, "raw" would be an ArrayBuffer
|
|
{name: "AES-CBC"}, //this is the algorithm options
|
|
false, //whether the key is extractable (i.e. can be used in exportKey)
|
|
["decrypt"] //can be "encrypt", "decrypt", "wrapKey", or "unwrapKey"
|
|
)
|
|
.then(MochiKit.Base.method(this, 'doDecrypt', aFileReference, anArrayBuffer, aNonce))
|
|
.catch(MochiKit.Base.method(this, 'handleException', aFileReference, 'decryptFile(): decryption failed'));
|
|
},
|
|
|
|
doDecrypt: function(aFileReference, anArrayBuffer, anIV, aWebcryptoKey) {
|
|
this.cryptoObject.subtle.decrypt(
|
|
{name: "AES-CBC", iv: anIV},
|
|
aWebcryptoKey,
|
|
anArrayBuffer
|
|
)
|
|
.then(MochiKit.Base.method(this, 'doneDecrypt', aFileReference))
|
|
.catch(MochiKit.Base.method(this, 'handleException', aFileReference, 'doDecrypt(): decryption failed'));
|
|
},
|
|
|
|
doneDecrypt: function(aFileReference, anArrayBuffer) {
|
|
this.updateFileInQueue(aFileReference, {
|
|
'status': 'WAITING_SAVE',
|
|
'decryptedArray': new Uint8Array(anArrayBuffer),
|
|
});
|
|
},
|
|
|
|
|
|
//=========================================================================
|
|
// Queue Processing: SAVE
|
|
//=========================================================================
|
|
|
|
saveFile: function(aFileReference, anArray, aFileName, aFileType) {
|
|
var blob = new Blob([anArray], {type: aFileType});
|
|
saveAs(blob, aFileName);
|
|
|
|
this.updateFileInQueue(aFileReference, {
|
|
'status': 'DONE',
|
|
});
|
|
},
|
|
|
|
|
|
//=========================================================================
|
|
// Exceptions
|
|
//=========================================================================
|
|
|
|
/** Handles exceptions for upload/download and encrypt/decrypt. Note that
|
|
* an exception is thrown also when the user manually cancels the file
|
|
* processing. In this case the status remains 'CANCELED'.
|
|
*/
|
|
handleException: function(aFileReference, aMessage, anException) {
|
|
var queueElement = this.getQueueElement(aFileReference);
|
|
var messageString = aMessage ? " (" + aMessage + ")" : "";
|
|
|
|
try {
|
|
if (Clipperz.Base.evalJSON(anException['req']['response'])['message'] == "not enough space available for uploading the attachment") {
|
|
console.log("NOT ENOUGH ATTACHMENT QUOTA EXCEPTION");
|
|
}
|
|
} catch (exception) {
|
|
}
|
|
|
|
if (queueElement['status'] != 'CANCELED') {
|
|
this.updateFileInQueue(aFileReference, {
|
|
'status': 'FAILED',
|
|
});
|
|
}
|
|
|
|
if (aMessage) {
|
|
console.log("AttachmentController: caught exception" + messageString + ":", anException);
|
|
}
|
|
},
|
|
|
|
//=========================================================================
|
|
|
|
__syntaxFix__: "syntax fix"
|
|
}); |