add: added pfps and user profile modification

back/api/users.js

@@ -1,6 +1,7 @@
 const express = require('express');
 const { getConnection, getUsers, getUserByUsername, getUserLastMessages, getMentions, deleteUser, deleteUserMessages, deleteUserMentions } = require('../libs/mysql');
 const { checkAuth } = require("../libs/middlewares")
+const path = require('path');
 
 const router = express.Router();
 
@@ -41,8 +42,26 @@ router.get('/:username/lastmessages', async (req, res) => {
     res.send(messages);
 });
 
-router.use("/:username/delete", checkAuth);
-router.post('/:username/delete', async (req, res) => {
+router.get('/:username/pfp', async (req, res) => {
+    const username = req.params.username;
+    const connection = await getConnection();
+    const user = await getUserByUsername(connection, username);
+    connection.end();
+
+    if (!user[0]) {
+        return res.status(400).send({ error: 'No user found' });
+    }
+
+    const pfp = user[0].pfp;
+
+    if (!pfp) {
+        return res.sendFile(path.join(__dirname, `../images/default-pfp.png`), { headers: { 'Content-Type': 'image' } });
+    }
+
+    res.sendFile(path.join(__dirname, `../data/pfps/${pfp}`), { headers: { 'Content-Type': 'image' } });
+});
+
+router.post('/:username/delete', checkAuth, async (req, res) => {
     const username = req.params.username;
     const user = req.user;