email service
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39b254b163
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12232dbe16
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'use strict';
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var _ = require('lodash');
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var $ = require('preconditions').singleton();
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var async = require('async');
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var log = require('npmlog');
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log.debug = log.verbose;
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var fs = require('fs');
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var Model = require('./model');
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var EMAIL_TYPES = {
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'NewTxProposal': {
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filename: 'new_tx_proposal',
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notifyCreator: false,
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notifyDoer: false,
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},
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'NewOutgoingTx': {
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filename: 'new_outgoing_tx',
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notifyCreator: true,
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notifyDoer: true,
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},
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'NewIncomingTx': {
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filename: 'new_incoming_tx',
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notifyCreator: true,
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notifyDoer: true,
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},
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'TxProposalFinallyRejected': {
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filename: 'txp_finally_rejected',
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notifyCreator: true,
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notifyDoer: false,
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},
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};
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function EmailService(opts) {
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this.storage = opts.storage;
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this.lock = opts.lock;
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};
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EmailService.prototype._readTemplate = function(filename, cb) {
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fs.readFile(__dirname + '/templates/' + filename + '.plain', 'utf8', function(err, template) {
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var lines = template.split('\n');
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return cb(null, {
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subject: _.template(lines[0]),
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body: _.template(_.rest(lines).join('\n')),
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});
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});
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};
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EmailService.prototype._applyTemplate = function(template, data, cb) {
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var result = _.mapValues(template, function(t) {
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// TODO: If this throws exception, log and abort email generation
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return t(data);
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});
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return cb(null, result);
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};
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EmailService.prototype._generateFromNotification = function(notification, cb) {
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var self = this;
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var emailType = EMAIL_TYPES[notification.type];
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if (!emailType) return cb();
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self.storage.fetchPreferences(notification.walletId, null, function(err, preferences) {
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if (_.isEmpty(preferences)) return cb();
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var addressesByCopayer = _.reduce(preferences, function(memo, p) {
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if (p.email) {
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memo[p.copayerId] = p.email;
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}
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return memo;
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}, {});
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if (_.isEmpty(addressesByCopayer)) return cb();
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self._readTemplate(emailType.filename, function(err, template) {
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if (err) return cb(err);
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self._applyTemplate(template, notification.data, function(err, content) {
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if (err) return cb(err);
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_.each(addressesByCopayer, function(emailAddress, copayerId) {
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var email = Model.Email.create({
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walletId: notification.walletId,
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copayerId: copayerId,
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to: emailAddress,
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subject: content.subject,
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body: content.body,
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});
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self.storage.storeEmail(email, function(err) {
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return cb(err);
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});
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});
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});
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});
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});
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return cb();
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};
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EmailService.prototype._send = function(cb) {
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var self = this;
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this.lock.runLocked('emails', cb, function() {
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//self._fetchUnsentEmails();
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});
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};
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module.exports = EmailService;
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@ -18,13 +18,19 @@ var Lock = require('./lock');
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var Storage = require('./storage');
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var MessageBroker = require('./messagebroker');
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var BlockchainExplorer = require('./blockchainexplorer');
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var EmailService = require('./emailservice');
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var Model = require('./model');
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var Wallet = Model.Wallet;
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var initialized = false;
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var lock, storage, blockchainExplorer, blockchainExplorerOpts;
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var lock;
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var storage;
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var blockchainExplorer;
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var blockchainExplorerOpts;
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var messageBroker;
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var emailService;
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/**
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@ -41,6 +47,7 @@ function WalletService() {
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this.blockchainExplorerOpts = blockchainExplorerOpts;
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this.messageBroker = messageBroker;
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this.notifyTicker = 0;
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this.emailService = emailService;
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};
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/**
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@ -58,20 +65,28 @@ WalletService.initialize = function(opts, cb) {
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blockchainExplorer = opts.blockchainExplorer;
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blockchainExplorerOpts = opts.blockchainExplorerOpts;
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if (initialized)
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return cb();
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if (initialized) return cb();
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function initStorage(cb) {
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if (opts.storage) {
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storage = opts.storage;
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return cb();
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} else {
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var newStorage = new Storage();
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newStorage.connect(opts.storageOpts, function(err) {
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if (err) return cb(err);
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storage = newStorage;
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return cb();
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});
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}
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var newStorage = new Storage();
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newStorage.connect(opts.storageOpts, function(err) {
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if (err) return cb(err);
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storage = newStorage;
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return cb();
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};
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function initEmailService(cb) {
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emailService = new EmailService({
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lock: lock,
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storage: storage,
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});
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return cb();
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};
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function initMessageBroker(cb) {
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@ -91,11 +106,15 @@ WalletService.initialize = function(opts, cb) {
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function(next) {
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initMessageBroker(next);
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},
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function(next) {
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initEmailService(next);
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},
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], function(err) {
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if (err) {
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log.error('Could not initialize', err);
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throw err;
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}
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], function() {
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initialized = true;
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return cb();
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});
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@ -331,9 +350,12 @@ WalletService.prototype._notify = function(type, data, opts, cb) {
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creatorId: opts.isGlobal ? null : copayerId,
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walletId: walletId,
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});
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this.storage.storeNotification(walletId, n, function() {
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self.messageBroker.send(n);
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if (cb) return cb();
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this.storage.storeNotification(walletId, notification, function() {
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self.messageBroker.send(notification);
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self.emailService._generateFromNotification(notification, function() {
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if (cb) return cb();
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});
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});
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};
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@ -356,13 +356,25 @@ Storage.prototype.fetchAddress = function(address, cb) {
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};
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Storage.prototype.fetchPreferences = function(walletId, copayerId, cb) {
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this.db.collection(collections.PREFERENCES).findOne({
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this.db.collection(collections.PREFERENCES).find({
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walletId: walletId,
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copayerId: copayerId,
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}, function(err, result) {
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}).toArray(function(err, result) {
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if (err) return cb(err);
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if (copayerId) {
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result = _.find(result, {
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copayerId: copayerId
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});
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}
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if (!result) return cb();
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return cb(null, Model.Preferences.fromObj(result));
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var preferences = _.map([].concat(result), function(r) {
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return Model.Preferences.fromObj(r);
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});
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if (copayerId) {
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preferences = preferences[0];
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}
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return cb(null, preferences);
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});
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};
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@ -379,7 +391,7 @@ Storage.prototype.storePreferences = function(preferences, cb) {
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Storage.prototype.storeEmail = function(email, cb) {
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this.db.collection(collections.EMAIL_QUEUE).update({
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id: email.id,
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}, txp, {
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}, email, {
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w: 1,
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upsert: true,
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}, cb);
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@ -388,7 +400,7 @@ Storage.prototype.storeEmail = function(email, cb) {
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Storage.prototype.fetchUnsentEmails = function(cb) {
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this.db.collection(collections.EMAIL_QUEUE).find({
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status: 'pending',
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}, function(err, result) {
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}).toArray(function(err, result) {
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if (err) return cb(err);
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if (!result) return cb();
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return cb(null, Model.Email.fromObj(result));
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@ -0,0 +1,2 @@
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New transaction proposal!
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A new transaction proposal has been created by another copayer.
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