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Merge pull request #15 from waterloop/applicant-email-reply
Applicant email reply
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| const rootImportOpts = { | ||
| root: __dirname, | ||
| rootPathSuffix: 'src', | ||
| }; | ||
|
|
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| module.exports = { | ||
| presets: ['@babel/preset-env'], | ||
| plugins: [['babel-plugin-root-import', rootImportOpts]], | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| { | ||
| "compilerOptions": { | ||
| "baseUrl": "src" | ||
| }, | ||
| "include": ["src/frontend"] | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| const { google } = require('googleapis'); | ||
| const MailComposer = require('nodemailer/lib/mail-composer'); | ||
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|
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| const encodeMessage = (message) => | ||
| Buffer.from(message) | ||
| .toString('base64') | ||
| .replace(/\+/g, '-') | ||
| .replace(/\//g, '_') | ||
| .replace(/=+$/, ''); | ||
|
|
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| const createMail = async (options) => { | ||
| const mailComposer = new MailComposer(options); | ||
| const message = await mailComposer.compile().build(); | ||
| return encodeMessage(message); | ||
| }; | ||
|
|
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| export const sendEmail = async (message, token) => { | ||
| try { | ||
| const oAuth2Client = new google.auth.OAuth2(process.env.GOOGLE_CLIENT_ID); | ||
| oAuth2Client.setCredentials({ | ||
| access_token: token, | ||
| scope: 'https://www.googleapis.com/auth/gmail.send', | ||
| }); | ||
| const gmail = google.gmail({ version: 'v1', auth: oAuth2Client }); | ||
| const options = { | ||
| to: message.to, | ||
| subject: message.subject, | ||
| html: message.body, | ||
| textEncoding: 'base64', | ||
| headers: [ | ||
| { key: 'X-Application-Developer', value: 'Gordon Wang' }, | ||
| { key: 'X-Application-Version', value: 'v1.0.0.2' }, | ||
| ], | ||
| }; | ||
|
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| const rawMessage = await createMail(options); | ||
| const { data: { id } = {} } = await gmail.users.messages.send({ | ||
| userId: 'me', | ||
| requestBody: { | ||
| raw: rawMessage, | ||
| }, | ||
| }); | ||
| return id; | ||
| } catch (err) { | ||
| console.log('sendMail error', err); | ||
| return -1; | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,12 +1,19 @@ | ||
| import express from 'express'; | ||
|
|
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| import updateEmailSent from './update-email-sent'; | ||
| import updateEmailStatus from './update-email-sent'; | ||
| import validationCheck from '../../utils/validation-check'; | ||
| import { validateRequest } from '../../google-auth'; | ||
| import { body } from 'express-validator'; | ||
|
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| const router = express.Router(); | ||
|
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| // NOTE: status checks will be done on DB end. | ||
| router.patch('/', [body('id').isInt()], validationCheck, updateEmailSent); | ||
| router.patch( | ||
| '/', | ||
| [body('id').isInt()], | ||
| validationCheck, | ||
| validateRequest, | ||
| updateEmailStatus, | ||
| ); | ||
|
|
||
| export default router; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,45 +1,26 @@ | ||
| import db from '../../db'; | ||
| import db from '~/backend/db'; | ||
| import { sendEmail } from './helper'; | ||
|
|
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| export default (req, res) => { | ||
| export default async (req, res) => { | ||
| const appID = req.body.id; | ||
| // Try applications db first: | ||
| db.applications | ||
| .updateEmailSent(appID) | ||
| .then((response) => { | ||
| if (Array.isArray(response) && response.length !== 0) { | ||
| res.send(response[0]); | ||
| } else { | ||
| // If no entries matched criteria in db, then attempt to update interview table email_sent column | ||
| db.interviews.updateEmailSent(appID).then((resp2) => { | ||
| if (typeof resp2 === 'number') { | ||
| let errMsg; | ||
| switch (resp2) { | ||
| // TODO: We should have an error struct in the future to distinguish between these 2 errors more easily. | ||
| case -1: | ||
| errMsg = `Could not find application (and corresponding interview entry) with ID ${appID}.`; | ||
| break; | ||
| case -2: | ||
| errMsg = `Cannot modify application/interview entry with ID ${appID}: invalid status.`; | ||
| break; | ||
| default: | ||
| break; | ||
| } | ||
| console.error(errMsg); | ||
| res.status(403).send(errMsg); | ||
| } else if (Array.isArray(resp2) && resp2.length === 1) { | ||
| res.send(resp2[0]); | ||
| } else { | ||
| // We should never have more than 1 interview entry: | ||
| throw new Error( | ||
| 'Multiple interview entries detected for single application! Please sanitize the database.', | ||
| ); | ||
| } | ||
| }); | ||
| } | ||
| }) | ||
| .catch((err) => { | ||
| const errMsg = `Could not modify email-sent status: ${err}`; | ||
| console.error(errMsg); | ||
| res.status(500).send(errMsg); | ||
| }); | ||
|
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| // send the actual email, then check if email sent correctly | ||
| if (req.body.accessToken) { | ||
| await sendEmail(req.body, req.body.accessToken); // TODO: check if accessToken sent securely. | ||
| } | ||
|
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| try { | ||
| // if email sent correctly, proceed with code below, else abort procedure. | ||
| const response = await db.applications.updateEmailStatus(appID); | ||
| if (Array.isArray(response) && response.length !== 0) { | ||
| res.send({ ...response[0] }); | ||
| } else { | ||
| // invalid ID or cannot send email for application with the status: | ||
| res.sendStatus(403); | ||
| } | ||
| } catch (err) { | ||
| const errMsg = `Could not modify email-sent status: ${err}`; | ||
| console.error(errMsg); | ||
| res.status(500).send(errMsg); | ||
| } | ||
| }; |
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