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index.js
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const AWS = require('aws-sdk')
const config = require('./src/configs/service.config')
const checkSentEmail = async (
dynamoDBClient,
trackUserEmailDynamoDBTable,
email
) => {
const params = {
TableName: trackUserEmailDynamoDBTable,
Key: {
Email: email,
},
}
const data = await dynamoDBClient.get(params).promise()
console.log('Data:', data)
if (data.Item) return true
return false
}
const logSentEmail = async (
dynamoDBClient,
trackUserEmailDynamoDBTable,
email
) => {
const params = {
TableName: trackUserEmailDynamoDBTable,
Item: {
Email: email,
},
}
const data = await dynamoDBClient.put(params).promise()
console.log('User data added', data)
}
const handler = async (event, context, callback) => {
console.log(`Received event ${JSON.stringify(event, null, 4)}`)
const trackUserEmailDynamoDBTable = config.TrackUserEmailDynamoDBTable
const trackUserEmailDynamoDBRegion =
config.TrackUserEmailDynamoDBRegion || 'us-east-1'
const domainEnvironment = config.DomainEnvironment || 'prod'
console.log('Setting AWS region to:', trackUserEmailDynamoDBRegion)
AWS.config.update({ region: 'us-east-1' })
const dynamoDBClient = new AWS.DynamoDB.DocumentClient({
region: 'us-east-1',
})
const message = event.Records[0].Sns.Message
const parsedMessage = JSON.parse(message)
console.log('Parsed message:', parsedMessage)
const email = parsedMessage.username
const { first_name, last_name, token } = parsedMessage
const emailAlreadySent = await checkSentEmail(
dynamoDBClient,
trackUserEmailDynamoDBTable,
email
)
if (!emailAlreadySent) {
console.log(`Sending email to ${email}`)
const ses = new AWS.SES()
const mailbody = `
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Verify your account!</title>
<style type="text/css">
/* reset */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
nav,
section,
summary {
display: block
}
audio,
canvas,
video {
display: inline-block;
*display: inline;
*zoom: 1
}
audio:not([controls]) {
display: none;
height: 0
}
[hidden] {
display: none
}
html {
font-size: 100%;
-webkit-text-size-adjust: 100%;
-ms-text-size-adjust: 100%
}
html,
button,
input,
select,
textarea {
font-family: sans-serif
}
body {
margin: 0
}
a:focus {
outline: thin dotted
}
a:active,
a:hover {
outline: 0
}
h1 {
font-size: 2em;
margin: 0 0.67em 0
}
h2 {
font-size: 1.5em;
margin: 0 0 .83em 0
}
h3 {
font-size: 1.17em;
margin: 1em 0
}
h4 {
font-size: 1em;
margin: 1.33em 0
}
h5 {
font-size: .83em;
margin: 1.67em 0
}
h6 {
font-size: .75em;
margin: 2.33em 0
}
abbr[title] {
border-bottom: 1px dotted
}
b,
strong {
font-weight: bold
}
blockquote {
margin: 1em 40px
}
dfn {
font-style: italic
}
mark {
background: #ff0;
color: #000
}
p,
pre {
margin: 1em 0
}
code,
kbd,
pre,
samp {
font-family: monospace, serif;
_font-family: 'courier new', monospace;
font-size: 1em
}
pre {
white-space: pre;
white-space: pre-wrap;
word-wrap: break-word
}
q {
quotes: none
}
q:before,
q:after {
content: '';
content: none
}
small {
font-size: 75%
}
sub,
sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline
}
sup {
top: -0.5em
}
sub {
bottom: -0.25em
}
dl,
menu,
ol,
ul {
margin: 1em 0
}
dd {
margin: 0 0 0 40px
}
menu,
ol,
ul {
padding: 0 0 0 40px
}
nav ul,
nav ol {
list-style: none;
list-style-image: none
}
img {
border: 0;
-ms-interpolation-mode: bicubic
}
svg:not(:root) {
overflow: hidden
}
figure {
margin: 0
}
form {
margin: 0
}
fieldset {
border: 1px solid #c0c0c0;
margin: 0 2px;
padding: .35em .625em .75em
}
legend {
border: 0;
padding: 0;
white-space: normal;
*margin-left: -7px
}
button,
input,
select,
textarea {
font-size: 100%;
margin: 0;
vertical-align: baseline;
*vertical-align: middle
}
button,
input {
line-height: normal
}
button,
html input[type="button"],
input[type="reset"],
input[type="submit"] {
-webkit-appearance: button;
cursor: pointer;
*overflow: visible
}
button[disabled],
input[disabled] {
cursor: default
}
input[type="checkbox"],
input[type="radio"] {
box-sizing: border-box;
padding: 0;
*height: 13px;
*width: 13px
}
input[type="search"] {
-webkit-appearance: textfield;
-moz-box-sizing: content-box;
-webkit-box-sizing: content-box;
box-sizing: content-box
}
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
-webkit-appearance: none
}
button::-moz-focus-inner,
input::-moz-focus-inner {
border: 0;
padding: 0
}
textarea {
overflow: auto;
vertical-align: top
}
table {
border-collapse: collapse;
border-spacing: 0
}
/* custom client-specific styles including styles for different online clients */
.ReadMsgBody {
width: 100%;
}
.ExternalClass {
width: 100%;
}
/* hotmail / outlook.com */
.ExternalClass,
.ExternalClass p,
.ExternalClass span,
.ExternalClass font,
.ExternalClass td,
.ExternalClass div {
line-height: 100%;
}
/* hotmail / outlook.com */
table,
td {
mso-table-lspace: 0pt;
mso-table-rspace: 0pt;
}
/* Outlook */
#outlook a {
padding: 0;
}
/* Outlook */
img {
-ms-interpolation-mode: bicubic;
display: block;
outline: none;
text-decoration: none;
}
/* IExplorer */
body,
table,
td,
p,
a,
li,
blockquote {
-ms-text-size-adjust: 100%;
-webkit-text-size-adjust: 100%;
font-weight: normal !important;
}
.ExternalClass td[class="ecxflexibleContainerBox"] h3 {
padding-top: 10px !important;
}
/* hotmail */
/* email template styles */
h1 {
display: block;
font-size: 26px;
font-style: normal;
font-weight: normal;
line-height: 100%;
}
h2 {
display: block;
font-size: 20px;
font-style: normal;
font-weight: normal;
line-height: 120%;
}
h3 {
display: block;
font-size: 17px;
font-style: normal;
font-weight: normal;
line-height: 110%;
}
h4 {
display: block;
font-size: 18px;
font-style: italic;
font-weight: normal;
line-height: 100%;
}
.flexibleImage {
height: auto;
}
table[class=flexibleContainerCellDivider] {
padding-bottom: 0 !important;
padding-top: 0 !important;
}
body,
#bodyTbl {
background-color: #E1E1E1;
}
#emailHeader {
background-color: #E1E1E1;
}
#emailBody {
background-color: #FFFFFF;
}
#emailFooter {
background-color: #E1E1E1;
}
.textContent {
color: #8B8B8B;
font-family: Helvetica;
font-size: 16px;
line-height: 125%;
text-align: Left;
}
.textContent a {
color: #205478;
text-decoration: underline;
}
.emailButton {
background-color: #205478;
border-collapse: separate;
}
.buttonContent {
color: #FFFFFF;
font-family: Helvetica;
font-size: 18px;
font-weight: bold;
line-height: 100%;
padding: 15px;
text-align: center;
}
.buttonContent a {
color: #FFFFFF;
display: block;
text-decoration: none !important;
border: 0 !important;
}
#invisibleIntroduction {
display: none;
display: none !important;
}
/* hide the introduction text */
/* other framework hacks and overrides */
span[class=ios-color-hack] a {
color: #275100 !important;
text-decoration: none !important;
}
/* Remove all link colors in IOS (below are duplicates based on the color preference) */
span[class=ios-color-hack2] a {
color: #205478 !important;
text-decoration: none !important;
}
span[class=ios-color-hack3] a {
color: #8B8B8B !important;
text-decoration: none !important;
}
/* phones and sms */
.a[href^="tel"],
a[href^="sms"] {
text-decoration: none !important;
color: #606060 !important;
pointer-events: none !important;
cursor: default !important;
}
.mobile_link a[href^="tel"],
.mobile_link a[href^="sms"] {
text-decoration: none !important;
color: #606060 !important;
pointer-events: auto !important;
cursor: default !important;
}
/* responsive styles */
@media only screen and (max-width: 480px) {
body {
width: 100% !important;
min-width: 100% !important;
}
table[id="emailHeader"],
table[id="emailBody"],
table[id="emailFooter"],
table[class="flexibleContainer"] {
width: 100% !important;
}
td[class="flexibleContainerBox"],
td[class="flexibleContainerBox"] table {
display: block;
width: 100%;
text-align: left;
}
td[class="imageContent"] img {
height: auto !important;
width: 100% !important;
max-width: 100% !important;
}
img[class="flexibleImage"] {
height: auto !important;
width: 100% !important;
max-width: 100% !important;
}
img[class="flexibleImageSmall"] {
height: auto !important;
width: auto !important;
}
table[class="flexibleContainerBoxNext"] {
padding-top: 10px !important;
}
table[class="emailButton"] {
width: 100% !important;
}
td[class="buttonContent"] {
padding: 0 !important;
}
td[class="buttonContent"] a {
padding: 15px !important;
}
}
</style>
</head>
<body bgcolor="#E1E1E1" leftmargin="0" marginwidth="0" topmargin="0" marginheight="0" offset="0">
<center style="background-color:#E1E1E1;">
<table border="0" cellpadding="0" cellspacing="0" height="100%" width="100%" id="bodyTbl" style="table-layout: fixed;max-width:100% !important;width: 100% !important;min-width: 100% !important;">
<tr>
<td align="center" valign="top" id="bodyCell">
<table bgcolor="#E1E1E1" border="0" cellpadding="0" cellspacing="0" width="500" id="emailHeader">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="10" cellspacing="0" width="500" class="flexibleContainer">
<tr>
<td valign="top" width="500" class="flexibleContainerCell">
<table align="left" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td align="left" valign="middle" id="invisibleIntroduction" class="flexibleContainerBox" style="display:none;display:none !important;">
<table border="0" cellpadding="0" cellspacing="0" width="100%" style="max-width:100%;">
<tr>
<td align="left" class="textContent">
<div style="font-family:Helvetica,Arial,sans-serif;font-size:13px;color:#828282;text-align:center;line-height:120%;">
A new user who's consuming our REST API will have to verify their account by clicking on their unique link.
</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
<table bgcolor="#FFFFFF" border="0" cellpadding="0" cellspacing="0" width="500" id="emailBody">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="100%" style="color:#FFFFFF;" bgcolor="#2E7D32">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="500" class="flexibleContainer">
<tr>
<td align="center" valign="top" width="500" class="flexibleContainerCell">
<table border="0" cellpadding="30" cellspacing="0" width="100%">
<tr>
<td align="center" valign="top" class="textContent">
<h1 style="color:#FFFFFF;line-height:100%;font-family:Helvetica,Arial,sans-serif;font-size:35px;font-weight:normal;margin-bottom:5px;text-align:center;">Account Verification</h1>
<h2 style="text-align:center;font-weight:normal;font-family:Helvetica,Arial,sans-serif;font-size:23px;margin-bottom:10px;color:#C9BC20;line-height:135%;">CSYE6225 REST API Activation</h2>
<div style="text-align:center;font-family:Helvetica,Arial,sans-serif;font-size:15px;margin-bottom:0;color:#FFFFFF;line-height:135%;">This is an auto-generated system email. Do not reply to this email as it cannot accept incoming e-mails. </div>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="500" class="flexibleContainer">
<tr>
<td align="center" valign="top" width="500" class="flexibleContainerCell">
<table border="0" cellpadding="30" cellspacing="0" width="100%">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td valign="top" class="textContent">
<h3 style="color:#5F5F5F;line-height:125%;font-family:Helvetica,Arial,sans-serif;font-size:20px;font-weight:normal;margin-top:0;margin-bottom:3px;text-align:left;">Hello ${first_name} ${last_name},</h3>
<div style="text-align:left;font-family:Helvetica,Arial,sans-serif;font-size:15px;margin-bottom:0;margin-top:3px;color:#5F5F5F;line-height:135%;">Thank you for registering with Network Structures and Cloud Computing coursework for this semester!
While we have you registered to use our REST API service, we need to verify your account.</div><br>
<div style="text-align:left;font-family:Helvetica,Arial,sans-serif;font-size:15px;margin-bottom:0;margin-top:3px;color:#5F5F5F;line-height:135%;">The below link will redirect you to verify your email and allow your to consume our REST API. <br><br>
<b>Please note that this link will be valid only for 5 minutes:</b></div>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="100%" bgcolor="#F8F8F8">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="500" class="flexibleContainer">
<tr>
<td align="center" valign="top" width="500" class="flexibleContainerCell">
<table border="0" cellpadding="30" cellspacing="0" width="100%">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="50%" class="emailButton" style="background-color: #2E7D32;">
<tr>
<td align="center" valign="middle" class="buttonContent" style="padding-top:15px;padding-bottom:15px;padding-right:15px;padding-left:15px;">
<a style="color:#FFFFFF;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:20px;line-height:135%;" href="https://${domainEnvironment}.sydrawat.me/v2/verifyUserEmail?token=${token}&email=${email}" target="_blank">Verify</a>
</td>
</tr>
</table>
<br>
<div style="text-align:left;font-family:Helvetica,Arial,sans-serif;font-size:13px;margin-bottom:0;margin-top:3px;color:#5F5F5F;line-height:120%;"> If you did not create a account with us, it is possible that someone else is trying to access our service by using your email <a href="mailto:${email}">${email}.</a><br> <b>Do not forward or share this link with anyone.</b>
<br><br>
You received this email because you require access to use our REST API services. If you think this is incorrect, please contact our support team. </div><br>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
<!-- footer -->
<table bgcolor="#E1E1E1" border="0" cellpadding="0" cellspacing="0" width="500" id="emailFooter">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td align="center" valign="top">
<table border="0" cellpadding="0" cellspacing="0" width="500" class="flexibleContainer">
<tr>
<td align="center" valign="top" width="500" class="flexibleContainerCell">
<table border="0" cellpadding="30" cellspacing="0" width="100%">
<tr>
<td valign="top" bgcolor="#E1E1E1">
<div style="font-family:Helvetica,Arial,sans-serif;font-size:13px;color:#828282;text-align:center;line-height:120%;">
<div>© 2022 <a href="https://sydrawat.netlify.app" target="_blank" style="text-decoration:none;color:#828282;">sydrawat</a>. All rights reserved.</div>
<div>If you don't want to receive these emails from us in the future, please <a href="https://sydrawat.netlify.app/unsubscribe" target="_blank" style="text-decoration:none;color:#828282;"><span style="color:#828282;">unsubscribe</span></a></div>
</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
<!-- // end of footer -->
</td>
</tr>
</table>
</center>
</body>
</html>
`
const params = {
Destination: {
ToAddresses: [email],
},
Message: {
Body: {
Html: {
Charset: 'UTF-8',
Data: mailbody,
},
},
Subject: {
Charset: 'UTF-8',
Data: `Account verification for ${domainEnvironment} CSYE6225 REST API: Action required`,
},
},
Source: `noreply@${domainEnvironment}.sydrawat.me`,
}
try {
const data = await ses.sendEmail(params).promise()
console.log(data)
console.log('Email successfully sent to:', { email })
} catch (err) {
console.log(`Could not send the email: `, err)
}
// Log this email to track sent emails to prevent duplicate verification email-link generation
try {
await logSentEmail(dynamoDBClient, trackUserEmailDynamoDBTable, email)
console.log('Email successfully logged to trackUserEmailDynamoDBTable')
} catch (err) {
console.log(
`Could not store the email to trackUserEmailDynamoDBTable: `,
err
)
}
} else {
console.log(`Email already sent to user: ${email}. No need to send again`)
}
}
module.exports = {
handler,
}