Merge pull request #2 from adnanrahic/develop

Added sending an email with a simple form POST request

getParamsFromUrl.js

@@ -0,0 +1,8 @@
+module.exports = (url) =>
+  decodeURIComponent(url)
+    .split('&')
+    .reduce((acc, curr) => {
+      const [key, value] = curr.split('=')
+      acc[key] = value
+      return acc
+    }, {})

handler.js

@@ -2,5 +2,6 @@ const options = {
   myEmail: process.env.EMAIL,
   myDomain: process.env.DOMAIN
 }
-const lambdaMailer = require('./lambdaMailer')(options)
-module.exports.send = lambdaMailer
+const { sendJSON, sendFormEncoded } = require('./lambdaMailer')(options)
+module.exports.sendJSON = sendJSON
+module.exports.sendFormEncoded = sendFormEncoded

lambdaMailer.js

@@ -1,5 +1,6 @@
 const aws = require('aws-sdk')
 const ses = new aws.SES()
+const getParamsFromUrl = require('./getParamsFromUrl')
 
 module.exports = (options) => {
   const { myEmail, myDomain } = options
@@ -15,7 +16,6 @@ module.exports = (options) => {
       body: JSON.stringify(payload)
     }
   }
-
   function generateError (code, err) {
     console.log(err)
     return {
@@ -28,8 +28,18 @@ module.exports = (options) => {
       body: JSON.stringify(err.message)
     }
   }
-
-  function generateEmailParams (body) {
+  function generateRedirect (code, redirectUrl) {
+    return {
+      statusCode: code,
+      headers: {
+        'Access-Control-Allow-Origin': myDomain,
+        'Access-Control-Allow-Headers': 'x-requested-with',
+        'Access-Control-Allow-Credentials': true,
+        'Location': redirectUrl
+      }
+    }
+  }
+  function generateEmailParamsFromJSON (body) {
     const { email, name, content } = JSON.parse(body)
     console.log(email, name, content)
     if (!(email && name && content)) {
@@ -54,16 +64,55 @@ module.exports = (options) => {
       }
     }
   }
+  function generateEmailParamsFromUriEncoded (body) {
+    const { email, name, content } = getParamsFromUrl(body)
+    if (!(email && name && content)) {
+      throw new Error('Missing parameters! Make sure to add parameters \'email\', \'name\', \'content\'.')
+    }
 
-  async function lambdaMailer (event) {
+    const replacedName = name.replace(/\+/g, ' ')
+    const replacedContent = content.replace(/\+/g, ' ')
+    return {
+      Source: myEmail,
+      Destination: { ToAddresses: [myEmail] },
+      ReplyToAddresses: [email],
+      Message: {
+        Body: {
+          Text: {
+            Charset: 'UTF-8',
+            Data: `Message sent from email ${email} by ${replacedName} \nContent: ${replacedContent}`
+          }
+        },
+        Subject: {
+          Charset: 'UTF-8',
+          Data: `You received a message from ${myDomain}!`
+        }
+      }
+    }
+  }
+
+  async function sendJSON (event) {
     try {
-      const emailParams = generateEmailParams(event.body)
+      const emailParams = generateEmailParamsFromJSON(event.body)
       const data = await ses.sendEmail(emailParams).promise()
       return generateResponse(200, data)
     } catch (err) {
       return generateError(500, err)
     }
   }
+  async function sendFormEncoded (event) {
+    try {
+      const redirectUrl = event.queryStringParameters ? event.queryStringParameters.redirectUrl : event.headers.Referer
+      const emailParams = generateEmailParamsFromUriEncoded(event.body)
+      await ses.sendEmail(emailParams).promise()
+      return generateRedirect(302, redirectUrl)
+    } catch (err) {
+      return generateError(500, err)
+    }
+  }
 
-  return lambdaMailer
+  return {
+    sendJSON,
+    sendFormEncoded
+  }
 }