Isuru Bimsara
92 lines
2.1 KiB
JavaScript
92 lines
2.1 KiB
JavaScript
// app/utils/emailVerification.util.js
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const crypto = require("crypto");
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const { sendMail } = require("../utils/mail.util");
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const redis = require("../config/redisClient");
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const EMAIL_VERIFICATION_TTL =
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Number(process.env.EMAIL_VERIFICATION_TTL_SECONDS) || 1800;
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const generateEmailVerificationToken = () => {
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return crypto.randomBytes(32).toString("hex");
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};
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const hashEmailVerificationToken = (token) => {
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return crypto.createHash("sha256").update(token).digest("hex");
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};
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const createEmailVerification = async (userId) => {
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// 1. Generate raw token
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const token = generateEmailVerificationToken();
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// 2. Hash token
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const tokenHash = hashEmailVerificationToken(token);
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// 3. Create Redis key
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const redisKey = `email-verification:${tokenHash}`;
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await redis.set(redisKey, userId, "EX", EMAIL_VERIFICATION_TTL);
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return token;
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};
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/**
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* Check a verification token.
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*/
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const verifyEmailVerificationToken = async (token) => {
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if (!token || typeof token !== "string") {
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return null;
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}
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// 1. Hash token received from user
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const tokenHash = hashEmailVerificationToken(token);
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// 2. Build same Redis key
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const redisKey = `email-verification:${tokenHash}`;
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// 3. Search Redis
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const userId = await redis.get(redisKey);
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if (!userId) {
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return null;
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}
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return {
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userId,
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redisKey,
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};
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};
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//send verification email to user
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const sendVerificationEmail = async (email, firstName, verificationToken) => {
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const confirmationLink = `${process.env.FRONTEND_URL}/verify-email?token=${verificationToken}`;
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// Send email
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await sendMail({
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to: email,
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subject: "Confirm Your ZUMRI Account",
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templateName: "emailVerification",
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templateVars: {
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customer_name: firstName,
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confirmation_link: confirmationLink,
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},
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text: `Hello ${firstName}, please verify your ZUMRI account using this link: ${confirmationLink}`,
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});
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};
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const deleteEmailVerification = async (redisKey) => {
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await redis.del(redisKey);
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};
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module.exports = {
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createEmailVerification,
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verifyEmailVerificationToken,
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sendVerificationEmail,
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deleteEmailVerification,
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hashEmailVerificationToken,
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};
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