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pascencio/01_lambda_edge_cookie.md

Last active June 16, 2020 16:39
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LambdaEdgeCookies
Raw
error.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Error Page</title>
</head>
<body>
<h1>Sorry your credentials are wrong...</h1>
</body>
</html>
Raw
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Home</title>
</head>
<body>
<h1>Login</h1>
<form method="POST" action="/login">
<input type="text" name="username" required placeholder="Username"><br>
<input type="password" name="password" required placeholder="Password"><br>
<button type="submit">Login</button>
</form>
</body>
</html>
Raw
index.js
const getDataDecoded = (data, encoding) => {
console.log('Getting data encoded with: ',encoding)
if(encoding === 'base64'){
return Buffer.from(data,'base64').toString('utf-8')
}
return data
}
module.exports.handle = async event => {
console.log('Event: ', JSON.stringify(event))
const request = event.Records[0].cf.request
let response = {
status: '302',
headers: {
location: [{
key:'Location',
value: '/error.html'
}]
}
}
if (request.method === 'POST' && request.body.data) {
console.log('Encoded login data: ', request.body.data)
const data = getDataDecoded(request.body.data,request.body.encoding)
console.log('Decoded login data: ', data)
const credentials = data.split('&')
const username = credentials[0].split('=')[1]
const password = credentials[1].split('=')[1]
if (username === 'foo' && password === 'bar') {
console.log('Login successfully')
const token = Buffer.from([username, password].join(':')).toString('base64')
response = {
status: '302',
headers: {
location: [{
key:'Location',
value: '/private.html'
}],
'set-cookie': [{
key: 'Set-Cookie',
value: [
['token', token].join('='),
'HttpOnly',
['Max-Age', (60 * 60)].join('=')
].join(';')
}]
}
}
}
}
console.log('Returning response: ',JSON.stringify(response))
return response
}
Raw
private.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Welcome</title>
</head>
<body>
<h1>This a private page content</h1>
</body>
</html>
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