api/controllers/UserController.ts

/**
* This file is part of SudoBot.
* 
* Copyright (C) 2021-2022 OSN Inc.
*
* SudoBot is free software; you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as published by 
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* 
* SudoBot is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of 
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License 
* along with SudoBot. If not, see <https://www.gnu.org/licenses/>.
*/

import Request from "../Request";
import User from "../../models/User";
import Controller from "../Controller";
import { body } from 'express-validator';
import bcrypt from 'bcrypt';
import jwt from 'jsonwebtoken';
import KeyValuePair from "../../types/KeyValuePair";
import Response from "../Response";
import { NextFunction, Response as ExpressResponse } from "express";
import ValidatorError from "../middleware/ValidatorError";
import RequireAuth from "../middleware/RequireAuth";

function RequireAdmin(request: Request, response: ExpressResponse, next: NextFunction) {
    if (!request.user?.isAdmin) {
        response.status(403).send({ error: "Forbidden", code: 403 });
        return;
    }

    next();
}

export default class UserController extends Controller {
    middleware(): KeyValuePair<Function[]> {
        return {
            index: [RequireAuth, RequireAdmin],
            create: [
                RequireAuth,
                RequireAdmin,
                body(["password"]).isLength({ min: 2 }), 
                body(["username"]).custom(async username => {
                    const user = await User.findOne({ username });

                    if (user) {
                        return Promise.reject("Username is already in use");
                    }

                    return username;
                }),
                body(["discord_id"]).custom(value => /\d+/g.test(value) ? value : Promise.reject("Invalid Snowflake Given"))
            ],
            login: [
                body(["username", "password"]).isLength({ min: 2 }),
            ],
            delete: [
                RequireAuth,
                body(["username", "password"]).isLength({ min: 2 }),
            ]
        };
    }

    globalMiddleware(): Function[] {
        return [ValidatorError];
    }

    public async index() {
        return await User.find().select(["_id", "username", "createdAt"]).limit(30);
    }

    public async create(request: Request) {
        const user = new User();

        user.username = request.body.username;
        user.discord_id = request.body.discord_id;
        user.createdAt = new Date();
        user.tokenUpdatedAt = new Date();

        try {
            await user.save();
        }
        catch (e) {
            return { error: "DB validation error", error_type: 'db_validation' };
        }

        const salt = await bcrypt.genSalt();
        user.password = await bcrypt.hash(request.body.password, salt);

        const token = await jwt.sign({
            username: user.username,
            discord_id: user.discord_id,
            _id: user.id
        }, process.env.JWT_SECRET!, {
            expiresIn: "2 days",
            issuer: "SudoBot API",
        });

        user.token = token;
        
        try {
            await user.save();
        }
        catch (e) {
            return { error: "Token signing error", error_type: 'token_signing' };
        }

        user.password = undefined;
        return user;
    }

    public async delete(request: Request) {
        const { username, password } = request.body;
        const user = await User.findOne({ username });

        if (!user) {
            return { error: "Username is incorrect." };
        }

        if (!(await bcrypt.compare(password, user.password!))) {
            return { error: "Password is incorrect." };
        }

        await user.delete();

        user.password = undefined;
        user.token = undefined;
        user.tokenUpdatedAt = undefined;

        return {
            message: "Account deletion successful",
            user
        };
    }

    public async login(request: Request) {
        const { username, password } = request.body;
        const user = await User.findOne({ username });

        if (!user) {
            return { error: "Username is incorrect." };
        }

        if (!(await bcrypt.compare(password, user.password!))) {
            return { error: "Password is incorrect." };
        }

        let { token } = user;

        try {
            if (!token) {
                throw new Error("Token is not set");
            }

            if (!jwt.verify(token, process.env.JWT_SECRET!)) {
                throw new Error("Token is not valid");
            }
        }
        catch (e) {
            console.log(e);    
            
            const newToken = await jwt.sign({
                username: user.username,
                discord_id: user.discord_id,
                _id: user.id
            }, process.env.JWT_SECRET!, {
                expiresIn: "2 days",
                issuer: "SudoBot API",
            });    

            token = newToken;
            user.tokenUpdatedAt = new Date();
            user.token = newToken;
            await user.save();
        }

        return {
            message: "Login successful",
            username,
            token,
            expires: new Date(user.tokenUpdatedAt!.getTime() + (2 * 24 * 60 * 60 * 1000)),
            guilds: this.client.guilds.cache.filter(g => user.guilds.includes(g.id) ?? false)
        };
    }
}
1	/**
2	* This file is part of SudoBot.
3	*
4	* Copyright (C) 2021-2022 OSN Inc.
5	*
6	* SudoBot is free software; you can redistribute it and/or modify it
7	* under the terms of the GNU Affero General Public License as published by
8	* the Free Software Foundation, either version 3 of the License, or
9	* (at your option) any later version.
10	*
11	* SudoBot is distributed in the hope that it will be useful, but
12	* WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU Affero General Public License for more details.
15	*
16	* You should have received a copy of the GNU Affero General Public License
17	* along with SudoBot. If not, see <https://www.gnu.org/licenses/>.
18	*/
19
20	import Request from "../Request";
21	import User from "../../models/User";
22	import Controller from "../Controller";
23	import { body } from 'express-validator';
24	import bcrypt from 'bcrypt';
25	import jwt from 'jsonwebtoken';
26	import KeyValuePair from "../../types/KeyValuePair";
27	import Response from "../Response";
28	import { NextFunction, Response as ExpressResponse } from "express";
29	import ValidatorError from "../middleware/ValidatorError";
30	import RequireAuth from "../middleware/RequireAuth";
31
32	function RequireAdmin(request: Request, response: ExpressResponse, next: NextFunction) {
33	if (!request.user?.isAdmin) {
34	response.status(403).send({ error: "Forbidden", code: 403 });
35	return;
36	}
37
38	next();
39	}
40
41	export default class UserController extends Controller {
42	middleware(): KeyValuePair<Function[]> {
43	return {
44	index: [RequireAuth, RequireAdmin],
45	create: [
46	RequireAuth,
47	RequireAdmin,
48	body(["password"]).isLength({ min: 2 }),
49	body(["username"]).custom(async username => {
50	const user = await User.findOne({ username });
51
52	if (user) {
53	return Promise.reject("Username is already in use");
54	}
55
56	return username;
57	}),
58	body(["discord_id"]).custom(value => /\d+/g.test(value) ? value : Promise.reject("Invalid Snowflake Given"))
59	],
60	login: [
61	body(["username", "password"]).isLength({ min: 2 }),
62	],
63	delete: [
64	RequireAuth,
65	body(["username", "password"]).isLength({ min: 2 }),
66	]
67	};
68	}
69
70	globalMiddleware(): Function[] {
71	return [ValidatorError];
72	}
73
74	public async index() {
75	return await User.find().select(["_id", "username", "createdAt"]).limit(30);
76	}
77
78	public async create(request: Request) {
79	const user = new User();
80
81	user.username = request.body.username;
82	user.discord_id = request.body.discord_id;
83	user.createdAt = new Date();
84	user.tokenUpdatedAt = new Date();
85
86	try {
87	await user.save();
88	}
89	catch (e) {
90	return { error: "DB validation error", error_type: 'db_validation' };
91	}
92
93	const salt = await bcrypt.genSalt();
94	user.password = await bcrypt.hash(request.body.password, salt);
95
96	const token = await jwt.sign({
97	username: user.username,
98	discord_id: user.discord_id,
99	_id: user.id
100	}, process.env.JWT_SECRET!, {
101	expiresIn: "2 days",
102	issuer: "SudoBot API",
103	});
104
105	user.token = token;
106
107	try {
108	await user.save();
109	}
110	catch (e) {
111	return { error: "Token signing error", error_type: 'token_signing' };
112	}
113
114	user.password = undefined;
115	return user;
116	}
117
118	public async delete(request: Request) {
119	const { username, password } = request.body;
120	const user = await User.findOne({ username });
121
122	if (!user) {
123	return { error: "Username is incorrect." };
124	}
125
126	if (!(await bcrypt.compare(password, user.password!))) {
127	return { error: "Password is incorrect." };
128	}
129
130	await user.delete();
131
132	user.password = undefined;
133	user.token = undefined;
134	user.tokenUpdatedAt = undefined;
135
136	return {
137	message: "Account deletion successful",
138	user
139	};
140	}
141
142	public async login(request: Request) {
143	const { username, password } = request.body;
144	const user = await User.findOne({ username });
145
146	if (!user) {
147	return { error: "Username is incorrect." };
148	}
149
150	if (!(await bcrypt.compare(password, user.password!))) {
151	return { error: "Password is incorrect." };
152	}
153
154	let { token } = user;
155
156	try {
157	if (!token) {
158	throw new Error("Token is not set");
159	}
160
161	if (!jwt.verify(token, process.env.JWT_SECRET!)) {
162	throw new Error("Token is not valid");
163	}
164	}
165	catch (e) {
166	console.log(e);
167
168	const newToken = await jwt.sign({
169	username: user.username,
170	discord_id: user.discord_id,
171	_id: user.id
172	}, process.env.JWT_SECRET!, {
173	expiresIn: "2 days",
174	issuer: "SudoBot API",
175	});
176
177	token = newToken;
178	user.tokenUpdatedAt = new Date();
179	user.token = newToken;
180	await user.save();
181	}
182
183	return {
184	message: "Login successful",
185	username,
186	token,
187	expires: new Date(user.tokenUpdatedAt!.getTime() + (2 * 24 * 60 * 60 * 1000)),
188	guilds: this.client.guilds.cache.filter(g => user.guilds.includes(g.id) ?? false)
189	};
190	}
191	}