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mailer.js
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mailer.js
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/**
* Created by championswimmer on 1/8/16.
* Modified by uttpal.
*/
'use strict';
const config = require('../../config.json');
/**
* Set these before requiring aws-sdk for all ENV vars to be loaded properly
*/
process.env.AWS_ACCESS_KEY_ID = process.env.AWS_ACCESS_KEY_ID || config.AWS_ACCESS_KEY_ID;
process.env.AWS_SECRET_ACCESS_KEY = process.env.AWS_SECRET_ACCESS_KEY || config.AWS_SECRET_ACCESS_KEY;
process.env.AWS_BUCKET = process.env.AWS_BUCKET || config.AWS_BUCKET;
process.env.CLOUD_STORAGE = process.env.CLOUD_STORAGE || config.CLOUD_STORAGE;
const promise = require('bluebird');
const helper = require('sendgrid').mail;
const sg = require('sendgrid')(process.env.SENDGRID_API_KEY || config.SENDGRID_API_KEY);
const distHelper = require('./dist.js');
const logger = require('./buildlogger.js');
const aws = require('aws-sdk');
const fs = require('fs');
const uuid = require('node-uuid');
const appUrl = process.env.HEROKU_URL;
const nodemailer = require('nodemailer');
const smtpTransport = require('nodemailer-smtp-transport');
const moment = require('moment');
aws.config.setPromisesDependency(promise);
let s3 = new aws.S3();
/**
* Support Google Cloud Store too using the same AWS SDK via Google Cloud Storage interoperability keys
*/
if (process.env.CLOUD_STORAGE === 'google_cloud') {
s3 = new aws.S3({endpoint: new aws.Endpoint('https://storage.googleapis.com')});
}
process.env.DEFAULT_MAIL_STRATEGY = process.env.DEFAULT_MAIL_STRATEGY || config.DEFAULT_MAIL_STRATEGY;
process.env.DEFAULT_FROM_EMAIL = process.env.DEFAULT_FROM_EMAIL || config.DEFAULT_FROM_EMAIL;
function uploadToS3(file, fileName, socket) {
const uploadParams = {
Bucket: process.env.AWS_BUCKET,
Key: fileName
};
const fileStream = fs.createReadStream(file);
fileStream.on('error', function(err) {
console.log('File Error');
logger.addLog('Error', 'Error during upload to S3', socket, err);
});
uploadParams.Body = fileStream;
return s3.upload(uploadParams).promise();
}
function emailSend(toEmail, url, appName) {
const subject = 'Your webapp ' + appName + ' is Ready';
let downloadUrl = url;
const previewUrl = appUrl + 'live/preview/' + toEmail + '/' + encodeURIComponent(appName);
const currDate = new Date();
let previewExpiryDate = new Date();
let downloadLinkExpiryDate = new Date();
let mailSendStatus = 0; // boolean to indicate the success and failure of email send
let chanChannelLink = 'https://gitter.im/fossasia/open-event-webapp';
let githubIssueLink = 'https://github.com/fossasia/open-event-webapp/issues';
var emailContent = '';
previewExpiryDate.setTime(currDate.getTime() + 7200000); // corresponds to current date + 2 hours
previewExpiryDate = moment.utc(previewExpiryDate).local().format('dddd, h A');
downloadLinkExpiryDate.setTime(currDate.getTime() + 259200000); // corresponds to current date + 3 days
downloadLinkExpiryDate = moment.utc(downloadLinkExpiryDate).local().format('dddd, MMMM Do YYYY');
var successMesg = 'Hi ! <br>' +
' Your webapp has been generated <br>' +
'You can preview it live on ' + ' link'.link(previewUrl) + '. This link expires on ' + previewExpiryDate + '<br>' +
'You can download a zip of your website from ' + ' here'.link(downloadUrl) + '. The download link for zip expires on ' + downloadLinkExpiryDate + '<br><br><br>' + 'Thank you for using Open Event Webapp Generator :)';
var errorMesg = 'Hi ! <br> The cloud upload of the webapp failed. Please inform us about it on our ' + 'chat channel'.link(chanChannelLink) + ' or file an issue on our ' + 'Github repo'.link(githubIssueLink) + '. Sorry for the inconvenience :(';
// The Cloud upload fails so download link point to the event folder on Heroku itself which will be purged in a few hours
if(!url) {
downloadUrl = appUrl + 'download/' + toEmail + '/' + appName;
emailContent = errorMesg;
} else {
emailContent = successMesg;
}
if(process.env.DEFAULT_MAIL_STRATEGY === 'SMTP') {
const smtpConfig = {
host: process.env.SMTP_HOST || config.SMTP_HOST,
port: process.env.SMTP_PORT || config.SMTP_PORT,
auth: {
user: process.env.SMTP_USERNAME || config.SMTP_USERNAME,
pass: process.env.SMTP_PASSWORD || config.SMTP_PASSWORD
}
};
const transporter = nodemailer.createTransport(smtpTransport(smtpConfig));
return transporter.sendMail({
from: process.env.DEFAULT_FROM_EMAIL,
to: toEmail,
subject: subject,
html: emailContent
}).then((response) => {
mailSendStatus = 1;
console.log('Successfully sent Email');
console.log(response);
return {'url': url, 'mail': mailSendStatus};
}).catch((err) => {
console.log('Error sending Email', err);
return {'url': url, 'mail': mailSendStatus};
});
}
const fromEmail = new helper.Email(process.env.DEFAULT_FROM_EMAIL);
const recipientEmail = new helper.Email(toEmail);
const content = new helper.Content('text/html', emailContent);
const mail = new helper.Mail(fromEmail, subject, recipientEmail, content);
const requestBody = mail.toJSON();
const request = sg.emptyRequest();
request.host = 'api.sendgrid.com';
request.method = 'POST';
request.path = '/v3/mail/send';
request.body = requestBody;
console.log(request);
return sg.API(request)
.then((response) => {
mailSendStatus = 1;
console.log(response.statusCode);
console.log(response.body);
console.log(response.headers);
return {'url': url, 'mail': mailSendStatus};
})
.catch((err) => {
console.log('Error sending Email', err);
return {'url': url, 'mail': mailSendStatus};
});
}
function uploadAndsendMail(toEmail, appName, socket, done) {
const file = distHelper.distPath + '/' + toEmail + '/event.zip';
appName = appName.split(' ').join('_');
const fileName = uuid.v4() + '/' + appName + '.zip';
uploadToS3(file, fileName, socket)
.then((data) => {
logger.addLog('Success', 'Upload successful to s3', socket);
data.Location = decodeURIComponent(data.Location);
console.log('Upload Success', data.Location);
return emailSend(toEmail, data.Location, appName);
})
.catch((err) => {
console.log('Error', err);
logger.addLog('Info', 'Failed while uploading the zip. No Amazon S3 keys found', socket);
return emailSend(toEmail, null, appName);
})
.then((obj) => {
return done(obj);
});
}
module.exports = {
uploadAndsendMail
};