「✨」 feat: added google auth

src/api/auth/gRegisterCallback.js

@@ -0,0 +1,64 @@
+import axios from 'axios'
+
+import authDB from '../../utils/authDB.js';
+
+var env = process.env.NODE_ENV || 'development';
+
+/**
+ *	@param {import("fastify").FastifyRequest} request
+ *	@param {import("fastify").FastifyReply} reply
+ *	@param {import("fastify").FastifyInstance} fastify
+ *
+ *	@returns {import('fastify').FastifyReply}
+ */
+export async function gRegisterCallback(request, reply, fastify) {
+	const { code } = request.query;
+
+	try {
+		const response = await axios.post('https://oauth2.googleapis.com/token', {
+			code,
+			client_id: process.env.GOOGLE_CLIENT_ID,
+			client_secret: process.env.GOOGLE_CLIENT_SECRET,
+			redirect_uri: process.env.GOOGLE_CALLBACK_URL + '/register/google/callback',
+			grant_type: 'authorization_code',
+		}, {
+			headers: {
+				'Content-Type': 'application/x-www-form-urlencoded'
+			}
+		});
+
+		const { access_token } = response.data;
+
+		const userInfoResponse = await axios.get('https://www.googleapis.com/oauth2/v3/userinfo', {
+			headers: { Authorization: `Bearer ${access_token}` },
+		});
+		const userProfile = userInfoResponse.data;
+		const user = {
+			username: userProfile.email, // Assuming email is used as the username
+		};
+
+		if (authDB.RESERVED_USERNAMES.includes(user)) {
+			return reply.code(400).send({ error: 'Reserved username' });
+		}
+		if (authDB.checkUser(user.username) === true) {
+			return reply.code(400).send({ error: "User already exist" });
+		}
+
+		authDB.addUser(user.username, '');
+
+		const token = fastify.jwt.sign(user);
+
+		return reply
+			.setCookie('token', token, {
+				httpOnly: true,
+				path: '/',
+				secure: env !== 'development',
+				sameSite: 'lax',
+			})
+			.code(200)
+			.send({ msg: "Register successful" });
+	} catch (error) {
+		fastify.log.error(error);
+		reply.code(500).send({ error: 'Internal server error' });
+	}
+}