add: added homepage

back/api/auth.js

@@ -0,0 +1,46 @@
+const express = require('express');
+const sha256 = require("sha256");
+const jwt = require('jsonwebtoken');
+const { getConnection, getUserByUsername, addUser, getUser } = require('../libs/mysql');
+
+const router = express.Router();
+
+router.post('/login', async (req, res) => {
+    const { username, password } = req.body;
+    const connection = await getConnection();
+    const users = await getUserByUsername(connection, username);
+    connection.end();
+    if (users[0]) {
+        if (users[0].password === sha256(password)) {
+            const token = jwt.sign({ id: users[0].id }, process.env.JWT_SECRET, {
+                expiresIn: 1000 * 60 * 60 * 24 * 7,
+            });
+            return res.send({ token: token });
+        }
+    }
+    res.status(401).send({ error: 'Invalid username or password' });
+});
+
+router.post('/register', async (req, res) => {
+    const { username, password } = req.body;
+    const connection = await getConnection();
+    const hash = sha256(password);
+    await addUser(connection, username, hash);
+    connection.end();
+    res.send({ message: 'User added' });
+});
+
+router.post('/me', async (req, res) => {
+    const { token } = req.body;
+    const decoded = jwt.verify(token, process.env.JWT_SECRET);
+    const connection = await getConnection();
+    const users = await getUser(connection, decoded.id);
+    connection.end();
+    if (users[0]) {
+        res.send({ id: users[0].id, username: users[0].username });
+    } else {
+        res.status(401).send({ error: 'Invalid token' });
+    }
+});
+
+module.exports = router;

back/api/channels.js

@@ -11,10 +11,10 @@ router.get('/', async (req, res) => {
     res.send(channels);
 });
 
-router.get('/:id', async (req, res) => {
-    const id = req.params.id;
+router.get('/:name', async (req, res) => {
+    const name = req.params.name;
     const connection = await getConnection();
-    const channel = await getChannel(connection, id);
+    const channel = await getChannel(connection, name);
     connection.end();
     if (channel[0]) {
         res.send(channel[0]);
@@ -23,22 +23,22 @@ router.get('/:id', async (req, res) => {
     }
 });
 
-router.get('/:id/messages', async (req, res) => {
-    const id = req.params.id;
+router.get('/:name/messages', async (req, res) => {
+    const name = req.params.name;
     const connection = await getConnection();
-    const channel = await getChannel(connection, id);
+    const channel = await getChannel(connection, name);
     if (!channel[0]) {
         connection.end();
         return res.send('No channel found');
     }
-    const messages = await getMessages(connection, id);
+    const messages = await getMessages(connection, channel[0].id);
     connection.end();
     res.send(messages);
 });
 
-router.post('/:id/messages/send', async (req, res) => {
+router.post('/:name/messages/send', async (req, res) => {
     const { token, message } = req.body;
-    const id = req.params.id;
+    const name = req.params.name;
     const connection = await getConnection();
 
     const decoded = jwt.verify(token, process.env.JWT_SECRET);
@@ -48,7 +48,13 @@ router.post('/:id/messages/send', async (req, res) => {
         return res.status(401).send({ error: 'Invalid token' });
     }
 
-    await addMessage(connection, id, user[0].id, message.replace("\"", "'"));
+    const channel = await getChannel(connection, name);
+    if (!channel[0]) {
+        connection.end();
+        return res.send('No channel found');
+    }
+
+    await addMessage(connection, channel[0].id, user[0].id, message.replace("\"", "'"));
     connection.end();
     res.send({ message: 'Message sent' });
 });

back/api/connect.js

@@ -1,24 +0,0 @@
-const express = require('express');
-const sha256 = require("sha256");
-const jwt = require('jsonwebtoken');
-const { getConnection, getUserByUsername } = require('../libs/mysql');
-
-const router = express.Router();
-
-router.post('/', async (req, res) => {
-    const { username, password } = req.body;
-    const connection = await getConnection();
-    const users = await getUserByUsername(connection, username);
-    connection.end();
-    if (users[0]) {
-        if (users[0].password === sha256(password)) {
-            const token = jwt.sign({ id: users[0].id }, process.env.JWT_SECRET, {
-                expiresIn: 1000 * 60 * 60 * 24 * 7,
-            });
-            res.send({ token: token });
-        }
-    }
-    res.status(401).send({ error: 'Invalid username or password' });
-});
-
-module.exports = router;

back/api/users.js

@@ -10,19 +10,10 @@ router.get('/:id', async (req, res) => {
     const users = await getUser(connection, id);
     connection.end();
     if (users[0]) {
-        res.send(users[0]);
+        res.send({id: users[0].id, username: users[0].username});
     } else {
         res.send('No user found');
     }
 });
 
-router.post('/add', async (req, res) => {
-    const { username, password } = req.body;
-    const connection = await getConnection();
-    const hash = sha256(password);
-    await addUser(connection, username, hash);
-    connection.end();
-    res.send({ message: 'User added' });
-});
-
 module.exports = router;

back/libs/mysql.js

@@ -65,10 +65,10 @@ function getChannels(connection) {
   });
 }
 
-function getChannel(connection, id) {
+function getChannel(connection, name) {
   return new Promise((resolve, reject) => {
     connection.query(
-      `SELECT * FROM channels WHERE id = ${id}`,
+      `SELECT * FROM channels WHERE name = "${name}"`,
       (error, result) => {
         if (error) {
           reject(new Error(error));

front/src/main.tsx

@@ -4,12 +4,16 @@ import './index.css'
 
 import Home from './pages/Home'
 import Channel from './pages/Channel'
+import Login from './pages/Login'
+import Register from './pages/Register'
 
 createRoot(document.getElementById('root')!).render(
   <BrowserRouter>
     <Routes>
       <Route path="/" element={<Home />} />
-      <Route path="/channels/:id" element={<Channel />} />
+      <Route path="/channels/:name" element={<Channel />} />
+      <Route path="/login" element={<Login />} />
+      <Route path="/register" element={<Register />} />
     </Routes>
   </BrowserRouter>
 )

front/src/pages/Channel.tsx

@@ -1,37 +1,22 @@
 import { useParams } from "react-router-dom";
 import { useEffect, useState } from "react";
+import { Channel_type, Messages } from "../types";
 import axios from "axios";
 
-type Channel ={
-    id: number,
-    name: string
-    description: string
-}
-
-type Message = {
-    id: number,
-    user_id: number,
-    username: string,
-    content: string,
-    date: number
-}
-
-type Messages = Message[]
-
 export default function Channel() {
-    const { id } = useParams();
-    const [channel, setChannel] = useState<Channel>();
+    const { name } = useParams();
+    const [channel, setChannel] = useState<Channel_type>();
     const [messages, setMessages] = useState<Messages>();
 
     useEffect(() => {
-        axios.get(`/api/channels/${id}`).then((res) => {
+        axios.get(`/api/channels/${name}`).then((res) => {
             setChannel(res.data);
         });
 
-        axios.get(`/api/channels/${id}/messages`).then((res) => {
+        axios.get(`/api/channels/${name}/messages`).then((res) => {
             setMessages(res.data);
         });
-    }, [id]);
+    }, [name]);
 
     if (!channel || !messages) {
         return <div>Loading...</div>;

front/src/pages/Home.tsx

@@ -1,7 +1,56 @@
+import { useState, useEffect } from "react"
+import { Link } from "react-router-dom"
+import { Channels, User } from "../types"
+import axios from "axios"
+
 export default function Home() {
+    const [user, setUser] = useState<User>();
+    const [channels, setChannels] = useState<Channels>();
+
+    useEffect(() => {
+        const token = localStorage.getItem("token")
+        if (token) {
+            axios.post("/api/auth/me", {
+                token: token
+            }).then((res) => {
+                setUser(res.data)
+            }).catch((err) => {
+                console.error(err)
+            })
+        } 
+
+        axios.get("/api/channels").then((res) => {
+            setChannels(res.data)
+        }).catch((err) => {
+            console.error(err)
+        })
+    }, [])
+
     return (
         <div>
             <h1>Home</h1>
+            {user ? (
+                <div>
+                    <p>Welcome {user.username}</p>
+                    <button onClick={() => {
+                        localStorage.removeItem("token")
+                        window.location.reload()
+                    }}>Logout</button>
+                </div>
+            ) : (
+                <div>
+                    <Link to="/login">Login</Link>
+                    <Link to="/register">Register</Link>
+                </div>
+            )}
+            <h2>Channels</h2>
+            <ul>
+                {channels?.map((channel) => (
+                    <li key={channel.id}>
+                        <Link to={`/channels/${channel.name}`}>{channel.name}</Link>
+                    </li>
+                ))}
+            </ul>
         </div>
     )
 }

front/src/pages/Login.tsx

@@ -0,0 +1,45 @@
+import axios from "axios";
+import { useState } from "react";
+import { useNavigate, Link } from "react-router-dom";
+
+export default function Login() {
+    const [username, setUsername] = useState("");
+    const [password, setPassword] = useState("");
+    const navigate = useNavigate();
+
+    function handleSubmit(e: React.FormEvent) {
+        e.preventDefault();
+        axios
+            .post("/api/auth/login", { username, password })
+            .then((res) => {
+                localStorage.setItem("token", res.data.token);
+                navigate("/");
+            })
+            .catch((err) => {
+                alert(err.response.data.message);
+            });
+    }
+
+    return (
+        <div>
+            <Link to="/">Home</Link>
+            <h1>Login</h1>
+            <form onSubmit={handleSubmit}>
+                <input
+                    type="text"
+                    placeholder="Username"
+                    value={username}
+                    onChange={(e) => setUsername(e.target.value)}
+                />
+                <input
+                    type="password"
+                    placeholder="Password"
+                    value={password}
+                    onChange={(e) => setPassword(e.target.value)}
+                />
+                <button type="submit">Login</button>
+            </form>
+            <Link to="/register">Register</Link>
+        </div>
+    );
+}

front/src/pages/Register.tsx

@@ -0,0 +1,47 @@
+import axios from "axios";
+import { useState } from "react";
+import { useNavigate, Link } from "react-router-dom";
+
+export default function Register () {
+    const [username, setUsername] = useState("");
+    const [password, setPassword] = useState("");
+    const navigate = useNavigate();
+
+    function handleSubmit(e: React.FormEvent) {
+        e.preventDefault();
+        axios.post("/api/auth/register", { username, password });
+        axios
+            .post("/api/auth/login", { username, password })
+            .then((res) => {
+                localStorage.setItem("token", res.data.token);
+                navigate("/");
+            })
+            .catch((err) => {
+                alert(err.response.data.message);
+            }
+        );
+    }
+
+    return (
+        <div>
+            <Link to="/">Home</Link>
+            <h1>Register</h1>
+            <form onSubmit={handleSubmit}>
+                <input
+                    type="text"
+                    placeholder="Username"
+                    value={username}
+                    onChange={(e) => setUsername(e.target.value)}
+                />
+                <input
+                    type="password"
+                    placeholder="Password"
+                    value={password}
+                    onChange={(e) => setPassword(e.target.value)}
+                />
+                <button type="submit">Register</button>
+            </form>
+            <Link to="/login">Login</Link>
+        </div>
+    );
+}

front/src/types.tsx

@@ -0,0 +1,22 @@
+export type Channel_type ={
+    id: number,
+    name: string
+    description: string
+}
+
+export type Channels = Channel_type[]
+
+export type Message = {
+    id: number,
+    user_id: number,
+    username: string,
+    content: string,
+    date: number
+}
+
+export type Messages = Message[]
+
+export type User = {
+    id: number,
+    username: string
+}