mirror of https://github.com/moparisthebest/mail
1324 lines
46 KiB
JavaScript
1324 lines
46 KiB
JavaScript
define(function(require) {
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'use strict';
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var util = require('cryptoLib/util'),
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_ = require('underscore'),
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str = require('js/app-config').string,
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config = require('js/app-config').config;
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var EmailDAO = function(keychain, crypto, devicestorage, pgpbuilder) {
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this._keychain = keychain;
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this._crypto = crypto;
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this._devicestorage = devicestorage;
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this._pgpbuilder = pgpbuilder;
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};
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//
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// External API
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//
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EmailDAO.prototype.init = function(options, callback) {
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var self = this,
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keypair;
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self._account = options.account;
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self._account.busy = false;
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self._account.online = false;
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// validate email address
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var emailAddress = self._account.emailAddress;
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if (!util.validateEmailAddress(emailAddress)) {
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callback({
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errMsg: 'The user email address must be specified!'
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});
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return;
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}
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// init keychain and then crypto module
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initKeychain();
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function initKeychain() {
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// init user's local database
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self._devicestorage.init(emailAddress, function() {
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// call getUserKeyPair to read/sync keypair with devicestorage/cloud
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self._keychain.getUserKeyPair(emailAddress, function(err, storedKeypair) {
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if (err) {
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callback(err);
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return;
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}
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keypair = storedKeypair;
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initFolders();
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});
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});
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}
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function initFolders() {
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// try init folders from memory, since imap client not initiated yet
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self._imapListFolders(function(err, folders) {
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// dont handle offline case this time
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if (err && err.code !== 42) {
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callback(err);
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return;
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}
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self._account.folders = folders;
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callback(null, keypair);
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});
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}
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};
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EmailDAO.prototype.onConnect = function(options, callback) {
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var self = this;
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self._imapClient = options.imapClient;
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self._pgpMailer = options.pgpMailer;
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// set private key
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if (self._crypto && self._crypto._privateKey) {
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self._pgpbuilder._privateKey = self._crypto._privateKey;
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}
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// delegation-esque pattern to mitigate between node-style events and plain js
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self._imapClient.onIncomingMessage = function(message) {
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if (typeof self.onIncomingMessage === 'function') {
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self.onIncomingMessage(message);
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}
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};
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// connect the pgpmailer
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self._pgpmailerLogin();
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// connect to newly created imap client
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self._imapLogin(function(err) {
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if (err) {
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callback(err);
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return;
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}
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// set status to online
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self._account.online = true;
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// check memory
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if (self._account.folders) {
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// no need to init folder again on connect... already in memory
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callback();
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return;
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}
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// init folders
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self._imapListFolders(function(err, folders) {
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if (err) {
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callback(err);
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return;
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}
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self._account.folders = folders;
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callback();
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});
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});
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};
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EmailDAO.prototype.onDisconnect = function(options, callback) {
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// set status to online
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this._account.online = false;
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this._imapClient = undefined;
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self._pgpMailer = undefined;
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callback();
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};
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EmailDAO.prototype.unlock = function(options, callback) {
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var self = this;
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if (options.keypair) {
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// import existing key pair into crypto module
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self._crypto.importKeys({
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passphrase: options.passphrase,
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privateKeyArmored: options.keypair.privateKey.encryptedKey,
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publicKeyArmored: options.keypair.publicKey.publicKey
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}, function(err) {
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if (err) {
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callback(err);
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return;
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}
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// set decrypted privateKey to pgpMailer
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self._pgpbuilder._privateKey = self._crypto._privateKey;
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callback();
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});
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return;
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}
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// no keypair for is stored for the user... generate a new one
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self._crypto.generateKeys({
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emailAddress: self._account.emailAddress,
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keySize: self._account.asymKeySize,
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passphrase: options.passphrase
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}, function(err, generatedKeypair) {
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if (err) {
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callback(err);
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return;
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}
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handleGenerated(generatedKeypair);
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});
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function handleGenerated(generatedKeypair) {
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// import the new key pair into crypto module
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self._crypto.importKeys({
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passphrase: options.passphrase,
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privateKeyArmored: generatedKeypair.privateKeyArmored,
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publicKeyArmored: generatedKeypair.publicKeyArmored
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}, function(err) {
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if (err) {
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callback(err);
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return;
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}
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// persist newly generated keypair
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var newKeypair = {
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publicKey: {
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_id: generatedKeypair.keyId,
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userId: self._account.emailAddress,
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publicKey: generatedKeypair.publicKeyArmored
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},
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privateKey: {
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_id: generatedKeypair.keyId,
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userId: self._account.emailAddress,
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encryptedKey: generatedKeypair.privateKeyArmored
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}
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};
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self._keychain.putUserKeyPair(newKeypair, function(err) {
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if (err) {
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callback(err);
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return;
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}
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// set decrypted privateKey to pgpMailer
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self._pgpbuilder._privateKey = self._crypto._privateKey;
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callback();
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});
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});
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}
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};
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EmailDAO.prototype.syncOutbox = function(options, callback) {
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var self = this;
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// make sure two syncs for the same folder don't interfere
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self._account.busy = true;
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var folder = _.findWhere(self._account.folders, {
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path: options.folder
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});
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folder.messages = folder.messages || [];
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self._localListMessages({
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folder: folder.path
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}, function(err, storedMessages) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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var storedIds = _.pluck(storedMessages, 'id'),
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inMemoryIds = _.pluck(folder.messages, 'id'),
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newIds = _.difference(storedIds, inMemoryIds),
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removedIds = _.difference(inMemoryIds, storedIds);
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var newMessages = _.filter(storedMessages, function(msg) {
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return _.contains(newIds, msg.id);
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});
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var removedMessages = _.filter(folder.messages, function(msg) {
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return _.contains(removedIds, msg.id);
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});
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newMessages.forEach(function(newMessage) {
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folder.messages.push(newMessage);
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});
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removedMessages.forEach(function(removedMessage) {
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var index = folder.messages.indexOf(removedMessage);
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folder.messages.splice(index, 1);
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});
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folder.count = folder.messages.length;
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self._account.busy = false;
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callback();
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});
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};
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EmailDAO.prototype.sync = function(options, callback) {
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/*
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* Here's how delta sync works:
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*
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* First, we sync the messages between memory and local storage, based on their uid
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* delta1: storage > memory => we deleted messages, remove from remote and memory
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* delta2: memory > storage => we added messages, push to remote <<< not supported yet
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*
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* Second, we check the delta for the flags
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* deltaF2: memory > storage => we changed flags, sync them to the remote and memory
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*
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* Third, we go on to sync between imap and memory, again based on uid
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* delta3: memory > imap => we deleted messages directly from the remote, remove from memory and storage
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* delta4: imap > memory => we have new messages available, fetch to memory and storage
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*
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* Fourth, we pull changes in the flags downstream
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* deltaF4: imap > memory => we changed flags directly on the remote, sync them to the storage and memory
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*/
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var self = this;
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// validate options
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if (!options.folder) {
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callback({
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errMsg: 'Invalid options!'
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});
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return;
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}
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// check busy status
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if (self._account.busy) {
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callback({
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errMsg: 'Sync aborted: Previous sync still in progress',
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code: 409
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});
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return;
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}
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// make sure two syncs for the same folder don't interfere
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self._account.busy = true;
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var folder = _.findWhere(self._account.folders, {
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path: options.folder
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});
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/*
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* if the folder is not initialized with the messages from the memory, we need to fill it first, otherwise the delta sync obviously breaks.
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* initial filling from local storage is an exception from the normal sync. after reading from local storage, do imap sync
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*/
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var isFolderInitialized = !! folder.messages;
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if (!isFolderInitialized) {
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initFolderMessages();
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return;
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}
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doLocalDelta();
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/*
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* pre-fill the memory with the messages stored on the hard disk
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*/
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function initFolderMessages() {
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folder.messages = [];
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self._localListMessages({
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folder: folder.path
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}, function(err, storedMessages) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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storedMessages.forEach(function(storedMessage) {
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// remove the body to not load unnecessary data to memory
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delete storedMessage.body;
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folder.messages.push(storedMessage);
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});
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callback();
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doImapDelta();
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});
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}
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/*
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* compares the messages in memory to the messages on the disk
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*/
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function doLocalDelta() {
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self._localListMessages({
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folder: folder.path
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}, function(err, storedMessages) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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doDelta1();
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/*
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* delta1:
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* storage contains messages that are not present in memory => we deleted messages from the memory, so remove the messages from the remote and the disk
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*/
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function doDelta1() {
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var inMemoryUids = _.pluck(folder.messages, 'uid'),
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storedMessageUids = _.pluck(storedMessages, 'uid'),
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delta1 = _.difference(storedMessageUids, inMemoryUids); // delta1 contains only uids
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// if we're we are done here
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if (_.isEmpty(delta1)) {
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doDeltaF2();
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return;
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}
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var after = _.after(delta1.length, function() {
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doDeltaF2();
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});
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// delta1 contains uids of messages on the disk
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delta1.forEach(function(inMemoryUid) {
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var deleteMe = {
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folder: folder.path,
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uid: inMemoryUid
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};
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self._imapDeleteMessage(deleteMe, function(err) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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self._localDeleteMessage(deleteMe, function(err) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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after();
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});
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});
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});
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}
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/*
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* deltaF2:
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* memory contains messages that have flags other than those in storage => we changed flags, sync them to the remote and memory
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*/
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function doDeltaF2() {
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var deltaF2 = checkFlags(folder.messages, storedMessages); // deltaF2 contains the message objects, we need those to sync the flags
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if (_.isEmpty(deltaF2)) {
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callback();
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doImapDelta();
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return;
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}
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var after = _.after(deltaF2.length, function() {
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callback();
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doImapDelta();
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});
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// deltaF2 contains references to the in-memory messages
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deltaF2.forEach(function(inMemoryMessage) {
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self._imapMark({
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folder: folder.path,
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uid: inMemoryMessage.uid,
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unread: inMemoryMessage.unread,
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answered: inMemoryMessage.answered
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}, function(err) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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var storedMessage = _.findWhere(storedMessages, {
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uid: inMemoryMessage.uid
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});
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storedMessage.unread = inMemoryMessage.unread;
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storedMessage.answered = inMemoryMessage.answered;
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self._localStoreMessages({
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folder: folder.path,
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emails: [storedMessage]
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}, function(err) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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after();
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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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/*
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* compare the messages on the imap server to the in memory messages
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*/
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function doImapDelta() {
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self._imapSearch({
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folder: folder.path
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}, function(err, inImapUids) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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doDelta3();
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/*
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* delta3:
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* memory contains messages that are not present on the imap => we deleted messages directly from the remote, remove from memory and storage
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*/
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function doDelta3() {
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var inMemoryUids = _.pluck(folder.messages, 'uid'),
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delta3 = _.difference(inMemoryUids, inImapUids);
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if (_.isEmpty(delta3)) {
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doDelta4();
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return;
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}
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var after = _.after(delta3.length, function() {
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doDelta4();
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});
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// delta3 contains uids of the in-memory messages that have been deleted from the remote
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delta3.forEach(function(inMemoryUid) {
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// remove from local storage
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self._localDeleteMessage({
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folder: folder.path,
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uid: inMemoryUid
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}, function(err) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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// remove from memory
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var inMemoryMessage = _.findWhere(folder.messages, function(msg) {
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return msg.uid === inMemoryUid;
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});
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folder.messages.splice(folder.messages.indexOf(inMemoryMessage), 1);
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after();
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});
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});
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}
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/*
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* delta4:
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* imap contains messages that are not present in memory => we have new messages available, fetch downstream to memory and storage
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*/
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function doDelta4() {
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var inMemoryUids = _.pluck(folder.messages, 'uid'),
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delta4 = _.difference(inImapUids, inMemoryUids);
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// eliminate uids smaller than the biggest local uid, i.e. just fetch everything
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// that came in AFTER the most recent email we have in memory. Keep in mind that
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// uids are strictly ascending, so there can't be a NEW mail in the mailbox with a
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// uid smaller than anything we've encountered before.
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if (!_.isEmpty(inMemoryUids)) {
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var maxInMemoryUid = Math.max.apply(null, inMemoryUids); // apply works with separate arguments rather than an array
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// eliminate everything prior to maxInMemoryUid, i.e. everything that was already synced
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delta4 = _.filter(delta4, function(uid) {
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return uid > maxInMemoryUid;
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});
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}
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// no delta, we're done here
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if (_.isEmpty(delta4)) {
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doDeltaF4();
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return;
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}
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self._imapListMessages({
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folder: folder.path,
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firstUid: Math.min.apply(null, delta4),
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lastUid: Math.max.apply(null, delta4)
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}, function(err, messages) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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// if there is a verification message in the synced messages, handle it
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var verificationMessage = _.findWhere(messages, {
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subject: str.subjectPrefix + str.verificationSubject
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});
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if (verificationMessage) {
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handleVerification(verificationMessage, function(err) {
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// TODO: show usable error when the verification failed
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
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storeHeaders();
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});
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return;
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}
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storeHeaders();
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function storeHeaders() {
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// eliminate non-whiteout mails
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messages = _.filter(messages, function(message) {
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// we don't want to display "[whiteout] "-prefixed mails for now
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return message.subject.indexOf(str.subjectPrefix) === 0 && message.subject !== (str.subjectPrefix + str.verificationSubject);
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});
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// no delta, we're done here
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if (_.isEmpty(messages)) {
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doDeltaF4();
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return;
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}
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// filter out the "[whiteout] " prefix
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messages.forEach(function(messages) {
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messages.subject = messages.subject.replace(/^\[whiteout\] /, '');
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});
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// persist the encrypted message to the local storage
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self._localStoreMessages({
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folder: folder.path,
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emails: messages
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}, function(err) {
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if (err) {
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self._account.busy = false;
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callback(err);
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return;
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}
|
|
|
|
// if persisting worked, add them to the messages array
|
|
folder.messages = folder.messages.concat(messages);
|
|
doDeltaF4();
|
|
});
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
/**
|
|
* deltaF4: imap > memory => we changed flags directly on the remote, sync them to the storage and memory
|
|
*/
|
|
function doDeltaF4() {
|
|
var answeredUids, unreadUids,
|
|
deltaF4 = [];
|
|
|
|
getUnreadUids();
|
|
|
|
// find all the relevant unread mails
|
|
function getUnreadUids() {
|
|
self._imapSearch({
|
|
folder: folder.path,
|
|
unread: true
|
|
}, function(err, uids) {
|
|
if (err) {
|
|
self._account.busy = false;
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
// we're done here, let's get all the answered mails
|
|
unreadUids = uids;
|
|
getAnsweredUids();
|
|
});
|
|
}
|
|
|
|
// find all the relevant answered mails
|
|
function getAnsweredUids() {
|
|
// find all the relevant answered mails
|
|
self._imapSearch({
|
|
folder: folder.path,
|
|
answered: true
|
|
}, function(err, uids) {
|
|
if (err) {
|
|
self._account.busy = false;
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
// we're done here, let's update what we have in memory and persist that!
|
|
answeredUids = uids;
|
|
updateFlags();
|
|
});
|
|
|
|
}
|
|
|
|
function updateFlags() {
|
|
folder.messages.forEach(function(msg) {
|
|
// if the message's uid is among the uids that should be unread,
|
|
// AND the message is not unread, we clearly have to change that
|
|
var shouldBeUnread = _.contains(unreadUids, msg.uid);
|
|
if (msg.unread === shouldBeUnread) {
|
|
// everything is in order, we're good here
|
|
return;
|
|
}
|
|
|
|
msg.unread = shouldBeUnread;
|
|
deltaF4.push(msg);
|
|
});
|
|
|
|
folder.messages.forEach(function(msg) {
|
|
// if the message's uid is among the uids that should be answered,
|
|
// AND the message is not answered, we clearly have to change that
|
|
var shouldBeAnswered = _.contains(answeredUids, msg.uid);
|
|
if (msg.answered === shouldBeAnswered) {
|
|
// everything is in order, we're good here
|
|
return;
|
|
}
|
|
|
|
msg.answered = shouldBeAnswered;
|
|
deltaF4.push(msg);
|
|
});
|
|
|
|
// maybe a mail had BOTH flags wrong, so let's create
|
|
// a duplicate-free version of deltaF4
|
|
deltaF4 = _.uniq(deltaF4);
|
|
|
|
// everything up to date? fine, we're done!
|
|
if (_.isEmpty(deltaF4)) {
|
|
finishSync();
|
|
return;
|
|
}
|
|
|
|
var after = _.after(deltaF4.length, function() {
|
|
// we're doing updating everything
|
|
finishSync();
|
|
});
|
|
|
|
// alright, so let's sync the corrected messages
|
|
deltaF4.forEach(function(inMemoryMessage) {
|
|
// do a short round trip to the database to avoid re-encrypting,
|
|
// instead use the encrypted object in the storage
|
|
self._localListMessages({
|
|
folder: folder.path,
|
|
uid: inMemoryMessage.uid
|
|
}, function(err, storedMessages) {
|
|
if (err) {
|
|
self._account.busy = false;
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
var storedMessage = storedMessages[0];
|
|
storedMessage.unread = inMemoryMessage.unread;
|
|
storedMessage.answered = inMemoryMessage.answered;
|
|
|
|
// persist the modified object
|
|
self._localStoreMessages({
|
|
folder: folder.path,
|
|
emails: [storedMessage]
|
|
}, function(err) {
|
|
if (err) {
|
|
self._account.busy = false;
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
// and we're done.
|
|
after();
|
|
});
|
|
});
|
|
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
function finishSync() {
|
|
// whereas normal folders show the unread messages count only,
|
|
// the outbox shows the total count
|
|
// after all the tags are up to date, let's adjust the unread mail count
|
|
folder.count = _.filter(folder.messages, function(msg) {
|
|
return msg.unread === true;
|
|
}).length;
|
|
|
|
// allow the next sync to take place
|
|
self._account.busy = false;
|
|
callback();
|
|
}
|
|
|
|
/*
|
|
* checks if there are some flags that have changed in a and b
|
|
*/
|
|
function checkFlags(a, b) {
|
|
var i, aI, bI,
|
|
delta = [];
|
|
|
|
// find the delta
|
|
for (i = a.length - 1; i >= 0; i--) {
|
|
aI = a[i];
|
|
bI = _.findWhere(b, {
|
|
uid: aI.uid
|
|
});
|
|
if (bI && (aI.unread !== bI.unread || aI.answered !== bI.answered)) {
|
|
delta.push(aI);
|
|
}
|
|
}
|
|
|
|
return delta;
|
|
}
|
|
|
|
function handleVerification(message, localCallback) {
|
|
self._imapStreamText({
|
|
folder: options.folder,
|
|
message: message
|
|
}, function(error) {
|
|
var verificationUrlPrefix = config.cloudUrl + config.verificationUrl,
|
|
uuid, isValidUuid, index;
|
|
|
|
if (error) {
|
|
localCallback(error);
|
|
return;
|
|
}
|
|
|
|
index = message.body.indexOf(verificationUrlPrefix);
|
|
if (index === -1) {
|
|
// there's no url in the message, so forget about that.
|
|
localCallback();
|
|
return;
|
|
}
|
|
|
|
uuid = message.body.substr(index + verificationUrlPrefix.length, config.verificationUuidLength);
|
|
isValidUuid = new RegExp('[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}').test(uuid);
|
|
if (!isValidUuid) {
|
|
// there's no valid uuid in the message, so forget about that, too.
|
|
localCallback();
|
|
return;
|
|
}
|
|
|
|
self._keychain.verifyPublicKey(uuid, function(err) {
|
|
if (err) {
|
|
localCallback({
|
|
errMsg: 'Verifying your public key failed: ' + err.errMsg
|
|
});
|
|
return;
|
|
}
|
|
|
|
// public key has been verified, delete the message
|
|
self._imapDeleteMessage({
|
|
folder: options.folder,
|
|
uid: message.uid
|
|
}, localCallback);
|
|
});
|
|
});
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Streams message content
|
|
* @param {Object} options.message The message for which to retrieve the body
|
|
* @param {Object} options.folder The IMAP folder
|
|
* @param {Function} callback(error, message) Invoked when the message is streamed, or provides information if an error occurred
|
|
*/
|
|
EmailDAO.prototype.getBody = function(options, callback) {
|
|
var self = this,
|
|
message = options.message,
|
|
folder = options.folder;
|
|
|
|
if (message.loadingBody) {
|
|
return;
|
|
}
|
|
|
|
// the message already has a body, so no need to become active here
|
|
if (message.body) {
|
|
return;
|
|
}
|
|
|
|
message.loadingBody = true;
|
|
|
|
// the mail does not have its content in memory
|
|
readFromDevice();
|
|
|
|
// if possible, read the message body from the device
|
|
function readFromDevice() {
|
|
self._localListMessages({
|
|
folder: folder,
|
|
uid: message.uid
|
|
}, function(err, localMessages) {
|
|
var localMessage;
|
|
|
|
if (err) {
|
|
message.loadingBody = false;
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
localMessage = localMessages[0];
|
|
|
|
if (!localMessage.body) {
|
|
streamFromImap();
|
|
return;
|
|
}
|
|
|
|
// attach the body to the mail object
|
|
message.body = localMessage.body;
|
|
handleEncryptedContent();
|
|
});
|
|
}
|
|
|
|
// if reading the message body from the device was unsuccessful,
|
|
// stream the message from the imap server
|
|
function streamFromImap() {
|
|
self._imapStreamText({
|
|
folder: folder,
|
|
message: message
|
|
}, function(error) {
|
|
if (error) {
|
|
message.loadingBody = false;
|
|
callback(error);
|
|
return;
|
|
}
|
|
|
|
message.loadingBody = false;
|
|
|
|
// do not write the object from the object used by angular to the disk, instead
|
|
// do a short round trip and write back the unpolluted object
|
|
self._localListMessages({
|
|
folder: folder,
|
|
uid: message.uid
|
|
}, function(error, storedMessages) {
|
|
if (error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
|
|
storedMessages[0].body = message.body;
|
|
|
|
self._localStoreMessages({
|
|
folder: folder,
|
|
emails: storedMessages
|
|
}, function(error) {
|
|
if (error) {
|
|
callback(error);
|
|
return;
|
|
}
|
|
|
|
handleEncryptedContent();
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
function handleEncryptedContent() {
|
|
// normally, the imap-client should already have set the message.encrypted flag. problem: if we have pgp/inline,
|
|
// we can't reliably determine if the message is encrypted before we have inspected the payload...
|
|
message.encrypted = containsArmoredCiphertext(message);
|
|
|
|
// cleans the message body from everything but the ciphertext
|
|
if (message.encrypted) {
|
|
message.decrypted = false;
|
|
extractCiphertext();
|
|
}
|
|
message.loadingBody = false;
|
|
callback(null, message);
|
|
}
|
|
|
|
function containsArmoredCiphertext() {
|
|
return message.body.indexOf(str.cryptPrefix) !== -1 && message.body.indexOf(str.cryptSuffix) !== -1;
|
|
}
|
|
|
|
function extractCiphertext() {
|
|
var start = message.body.indexOf(str.cryptPrefix),
|
|
end = message.body.indexOf(str.cryptSuffix) + str.cryptSuffix.length;
|
|
|
|
// parse message body for encrypted message block
|
|
message.body = message.body.substring(start, end);
|
|
}
|
|
|
|
};
|
|
|
|
EmailDAO.prototype.decryptBody = function(options, callback) {
|
|
var self = this,
|
|
message = options.message;
|
|
|
|
// the message has no body, is not encrypted or has already been decrypted
|
|
if (message.decryptingBody || !message.body || !message.encrypted || message.decrypted) {
|
|
return;
|
|
}
|
|
|
|
message.decryptingBody = true;
|
|
|
|
// get the sender's public key for signature checking
|
|
self._keychain.getReceiverPublicKey(message.from[0].address, function(err, senderPublicKey) {
|
|
if (err) {
|
|
message.decryptingBody = false;
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
if (!senderPublicKey) {
|
|
// this should only happen if a mail from another channel is in the inbox
|
|
message.body = 'Public key for sender not found!';
|
|
message.decryptingBody = false;
|
|
callback(null, message);
|
|
return;
|
|
}
|
|
|
|
// get the receiver's public key to check the message signature
|
|
self._crypto.decrypt(message.body, senderPublicKey.publicKey, function(err, decrypted) {
|
|
// if an error occurs during decryption, display the error message as the message content
|
|
decrypted = decrypted || err.errMsg || 'Error occurred during decryption';
|
|
|
|
// this is a very primitive detection if we have PGP/MIME or PGP/INLINE
|
|
if (decrypted.indexOf('Content-Transfer-Encoding:') === -1 && decrypted.indexOf('Content-Type:') === -1) {
|
|
message.body = decrypted;
|
|
message.decrypted = true;
|
|
message.decryptingBody = false;
|
|
callback(null, message);
|
|
return;
|
|
}
|
|
|
|
// parse the decrypted MIME message
|
|
self._imapParseMessageBlock({
|
|
message: message,
|
|
block: decrypted
|
|
}, function(error) {
|
|
if (error) {
|
|
message.decryptingBody = false;
|
|
callback(error);
|
|
return;
|
|
}
|
|
|
|
message.decrypted = true;
|
|
|
|
// remove the pgp-signature from the attachments
|
|
message.attachments = _.reject(message.attachments, function(attmt) {
|
|
return attmt.mimeType === "application/pgp-signature";
|
|
});
|
|
|
|
// we're done here!
|
|
message.decryptingBody = false;
|
|
callback(null, message);
|
|
});
|
|
});
|
|
});
|
|
};
|
|
|
|
EmailDAO.prototype.getAttachment = function(options, callback) {
|
|
if (!this._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
this._imapClient.getAttachment(options, callback);
|
|
};
|
|
|
|
EmailDAO.prototype.sendEncrypted = function(options, callback) {
|
|
var self = this;
|
|
|
|
if (!this._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
// add whiteout tag to subject
|
|
options.email.subject = str.subjectPrefix + options.email.subject;
|
|
|
|
// mime encode, sign, encrypt and send email via smtp
|
|
self._pgpMailer.send({
|
|
encrypt: true,
|
|
cleartextMessage: str.message,
|
|
mail: options.email,
|
|
publicKeysArmored: options.email.publicKeysArmored
|
|
}, callback);
|
|
};
|
|
|
|
EmailDAO.prototype.sendPlaintext = function(options, callback) {
|
|
if (!this._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
// add whiteout tag to subject
|
|
options.email.subject = str.subjectPrefix + options.email.subject;
|
|
|
|
// mime encode, sign and send email via smtp
|
|
this._pgpMailer.send({
|
|
mail: options.email
|
|
}, callback);
|
|
};
|
|
|
|
EmailDAO.prototype.encrypt = function(options, callback) {
|
|
this._pgpbuilder.encrypt(options, callback);
|
|
};
|
|
|
|
EmailDAO.prototype.reEncrypt = function(options, callback) {
|
|
this._pgpbuilder.reEncrypt(options, callback);
|
|
};
|
|
|
|
//
|
|
// Internal API
|
|
//
|
|
|
|
// Local Storage API
|
|
|
|
EmailDAO.prototype._localListMessages = function(options, callback) {
|
|
var dbType = 'email_' + options.folder;
|
|
if (typeof options.uid !== 'undefined') {
|
|
dbType = dbType + '_' + options.uid;
|
|
}
|
|
this._devicestorage.listItems(dbType, 0, null, callback);
|
|
};
|
|
|
|
EmailDAO.prototype._localStoreMessages = function(options, callback) {
|
|
var dbType = 'email_' + options.folder;
|
|
this._devicestorage.storeList(options.emails, dbType, callback);
|
|
};
|
|
|
|
EmailDAO.prototype._localDeleteMessage = function(options, callback) {
|
|
if (!options.folder || !options.uid) {
|
|
callback({
|
|
errMsg: 'Invalid options!'
|
|
});
|
|
return;
|
|
}
|
|
var dbType = 'email_' + options.folder + '_' + options.uid;
|
|
this._devicestorage.removeList(dbType, callback);
|
|
};
|
|
|
|
|
|
// PGP Mailer API
|
|
|
|
/**
|
|
* Login the smtp client
|
|
*/
|
|
EmailDAO.prototype._pgpmailerLogin = function() {
|
|
this._pgpMailer.login();
|
|
};
|
|
|
|
// IMAP API
|
|
|
|
/**
|
|
* Mark imap messages as un-/read or un-/answered
|
|
*/
|
|
EmailDAO.prototype._imapMark = function(options, callback) {
|
|
if (!this._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
this._imapClient.updateFlags({
|
|
path: options.folder,
|
|
uid: options.uid,
|
|
unread: options.unread,
|
|
answered: options.answered
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Login the imap client
|
|
*/
|
|
EmailDAO.prototype._imapLogin = function(callback) {
|
|
if (!this._imapClient) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
// login IMAP client if existent
|
|
this._imapClient.login(callback);
|
|
};
|
|
|
|
/**
|
|
* Cleanup by logging the user off.
|
|
*/
|
|
EmailDAO.prototype._imapLogout = function(callback) {
|
|
if (!this._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
this._imapClient.logout(callback);
|
|
};
|
|
|
|
/**
|
|
* Returns the relevant messages corresponding to the search terms in the options
|
|
* @param {String} options.folder The folder's path
|
|
* @param {Boolean} options.answered (optional) Mails with or without the \Answered flag set.
|
|
* @param {Boolean} options.unread (optional) Mails with or without the \Seen flag set.
|
|
* @param {Function} callback(error, uids) invoked with the uids of messages matching the search terms, or an error object if an error occurred
|
|
*/
|
|
EmailDAO.prototype._imapSearch = function(options, callback) {
|
|
if (!this._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
var o = {
|
|
path: options.folder,
|
|
subject: str.subjectPrefix
|
|
};
|
|
|
|
if (typeof options.answered !== 'undefined') {
|
|
o.answered = options.answered;
|
|
}
|
|
if (typeof options.unread !== 'undefined') {
|
|
o.unread = options.unread;
|
|
}
|
|
|
|
this._imapClient.search(o, callback);
|
|
};
|
|
|
|
EmailDAO.prototype._imapDeleteMessage = function(options, callback) {
|
|
if (!this._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
this._imapClient.deleteMessage({
|
|
path: options.folder,
|
|
uid: options.uid
|
|
}, callback);
|
|
};
|
|
|
|
EmailDAO.prototype._imapParseMessageBlock = function(options, callback) {
|
|
this._imapClient.parseDecryptedMessageBlock(options, callback);
|
|
};
|
|
|
|
/**
|
|
* Get an email messsage without the body
|
|
* @param {String} options.folder The folder
|
|
* @param {Number} options.firstUid The lower bound of the uid (inclusive)
|
|
* @param {Number} options.lastUid The upper bound of the uid range (inclusive)
|
|
* @param {Function} callback (error, messages) The callback when the imap client is done fetching message metadata
|
|
*/
|
|
EmailDAO.prototype._imapListMessages = function(options, callback) {
|
|
var self = this;
|
|
|
|
if (!this._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
self._imapClient.listMessagesByUid({
|
|
path: options.folder,
|
|
firstUid: options.firstUid,
|
|
lastUid: options.lastUid
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* Stream an email messsage's body
|
|
* @param {String} options.folder The folder
|
|
* @param {Object} options.message The message, as retrieved by _imapListMessages
|
|
* @param {Function} callback (error, message) The callback when the imap client is done streaming message text content
|
|
*/
|
|
EmailDAO.prototype._imapStreamText = function(options, callback) {
|
|
var self = this;
|
|
|
|
if (!this._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
self._imapClient.getBody({
|
|
path: options.folder,
|
|
message: options.message
|
|
}, callback);
|
|
};
|
|
|
|
/**
|
|
* List the folders in the user's IMAP mailbox.
|
|
*/
|
|
EmailDAO.prototype._imapListFolders = function(callback) {
|
|
var self = this,
|
|
dbType = 'folders';
|
|
|
|
// check local cache
|
|
self._devicestorage.listItems(dbType, 0, null, function(err, stored) {
|
|
if (err) {
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
if (!stored || stored.length < 1) {
|
|
// no folders cached... fetch from server
|
|
fetchFromServer();
|
|
return;
|
|
}
|
|
|
|
callback(null, stored[0]);
|
|
});
|
|
|
|
function fetchFromServer() {
|
|
var folders;
|
|
|
|
if (!self._account.online) {
|
|
callback({
|
|
errMsg: 'Client is currently offline!',
|
|
code: 42
|
|
});
|
|
return;
|
|
}
|
|
|
|
// fetch list from imap server
|
|
self._imapClient.listWellKnownFolders(function(err, wellKnownFolders) {
|
|
if (err) {
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
folders = [
|
|
wellKnownFolders.inbox,
|
|
wellKnownFolders.sent, {
|
|
type: 'Outbox',
|
|
path: 'OUTBOX'
|
|
},
|
|
wellKnownFolders.drafts,
|
|
wellKnownFolders.trash
|
|
];
|
|
|
|
// cache locally
|
|
// persist encrypted list in device storage
|
|
self._devicestorage.storeList([folders], dbType, function(err) {
|
|
if (err) {
|
|
callback(err);
|
|
return;
|
|
}
|
|
|
|
callback(null, folders);
|
|
});
|
|
});
|
|
}
|
|
};
|
|
|
|
return EmailDAO;
|
|
}); |