From b265d1f417ef80dbd53ea9fc4376f2156da223d5 Mon Sep 17 00:00:00 2001 From: Kayne Ruse Date: Wed, 17 Mar 2021 16:51:37 +1100 Subject: [PATCH] Chat is working --- .envdev | 1 + README.md | 26 ++ package-lock.json | 588 ++++++++++++++++++++++++++++++++++++++++--- package.json | 4 +- server/chat/index.js | 108 +++++++- server/server.js | 9 +- 6 files changed, 691 insertions(+), 45 deletions(-) diff --git a/.envdev b/.envdev index 2c9446a..1a8041c 100644 --- a/.envdev +++ b/.envdev @@ -6,3 +6,4 @@ DB_USERNAME=chat DB_PASSWORD=blastoise DB_TIMEZONE=Australia/Sydney +SECRET_ACCESS=access \ No newline at end of file diff --git a/README.md b/README.md index 60ce55a..1795977 100644 --- a/README.md +++ b/README.md @@ -10,3 +10,29 @@ TODO: document the chat server setup TODO: document the chat server api +socket.io + + +``` +on connection -> wait for "create user" event + +on create user -> join #general as @username; socket.roomName = 'general'; socket.username = 'username'; accept only JWTs, send "backlog" message + +on message -> socket.to(socket.roomName).emit('message'); //scan for commands via middleware + +on disconnect -> cleanup etc. + +regular user API: +/join #room -> room is set to #room, join and leave commands are issued (this can also "create" new rooms) +/whisper @username -> disallow if roomName is different between two users +``` + + +``` +//user count +let room = io.sockets.adapter.rooms['my_room']; +let count = room.length; +``` + +https://socket.io/docs/v3/middlewares/ + diff --git a/package-lock.json b/package-lock.json index 37bae72..0da98c4 100644 --- a/package-lock.json +++ b/package-lock.json @@ -12,8 +12,10 @@ "cors": "^2.8.5", "dotenv": "^8.2.0", "express": "^4.17.1", + "jsonwebtoken": "^8.5.1", "mariadb": "^2.5.2", - "sequelize": "^6.5.0" + "sequelize": "^6.5.0", + "socket.io": "^4.0.0" }, "devDependencies": { "nodemon": "^2.0.7" @@ -40,15 +42,30 @@ "node": ">=6" } }, + "node_modules/@types/component-emitter": { + "version": "1.2.10", + 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"integrity": "sha512-LL0OLyN6AnfV9xqGQpDBwedT2Rt63737LxvsRxbcwpa2aIeynBApG2Sm//F3TaLHIR1aJBN52DWklc06b94o5Q==", + "version": "4.2.2", + "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.2.tgz", + "integrity": "sha512-XBJbT3N4JhVumXE0eoLU9DCjcaF92KLNqTmFCnG1pf8duUxFGwtP6AD6nkjw9a3IdiRtL3E2w3JDiE/xi3vOeA==", "dev": true, "requires": { "emoji-regex": "^8.0.0", @@ -3556,6 +4064,12 @@ "typedarray-to-buffer": "^3.1.5" } }, + "ws": { + "version": "7.4.4", + "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.4.tgz", + "integrity": "sha512-Qm8k8ojNQIMx7S+Zp8u/uHOx7Qazv3Yv4q68MiWWWOJhiwG5W3x7iqmRtJo8xxrciZUY4vRxUTJCKuRnF28ZZw==", + "requires": {} + }, "xdg-basedir": { "version": "4.0.0", "resolved": "https://registry.npmjs.org/xdg-basedir/-/xdg-basedir-4.0.0.tgz", diff --git a/package.json b/package.json index 27fadcc..fbb4102 100644 --- a/package.json +++ b/package.json @@ -23,8 +23,10 @@ "cors": "^2.8.5", "dotenv": "^8.2.0", "express": "^4.17.1", + "jsonwebtoken": "^8.5.1", "mariadb": "^2.5.2", - "sequelize": "^6.5.0" + "sequelize": "^6.5.0", + "socket.io": "^4.0.0" }, "devDependencies": { "nodemon": "^2.0.7" diff --git a/server/chat/index.js b/server/chat/index.js index 594c3e8..88a2cba 100644 --- a/server/chat/index.js +++ b/server/chat/index.js @@ -1,7 +1,105 @@ -const express = require('express'); -const router = express.Router(); +const { request } = require('express'); +const jwt = require('jsonwebtoken'); -//basic route management -//TODO: import the routes +const chat = io => { + io.on('connection', socket => { + //middleware + socket.use((request, next) => { + //verify request format + if (!['open chat', 'message'].includes(request[0])) { + return next(`Invalid request to the chat server ${request[0]}`); + } + return next(); + }); -module.exports = router; + socket.use((request, next) => { + //authenticate the jwt + return jwt.verify(request[1].accessToken, process.env.SECRET_ACCESS, (err, user) => { + if (err) { + return next(err); + } + + const room = socket.user?.room; //save room, if any + socket.user = user; + socket.user.room = room; + + return next(); + }); + }); + + //handle errors + socket.on('error', err => { + console.log('socket error:', err); + socket.emit(err); + }); + + //from here, handles all normal messages + socket.on('open chat', message => { + //handle rooms - only in a room if you've opened chat + const newlyOpened = !socket.user.room; + socket.user.room = socket.user.room || 'general'; //default to general + + if (!newlyOpened) { + return; + } + + socket.join(socket.user.room); + + //broadcast to this room + socket.broadcast.to(socket.user.room).emit('message', { emphasis: true, text: `${socket.user.username} entered chat` }); + }); + + socket.on('message', message => { + //server commands begin with a '/' + if (message.text.startsWith('/')) { + return executeCommand(socket, message.text); + } + + //broadcast to this room + socket.broadcast.to(socket.user.room).emit('message', { username: socket.user.username, text: message.text }); + }); + + socket.on('disconnect', reason => { + //broadcast to this room + if (!socket.user) { + return; + } + + socket.broadcast.to(socket.user.room || '.error').emit('message', { emphasis: true, text: `${socket.user.username} left chat` }); + }); + }); +}; + +//handle commands +const executeCommand = (socket, command) => { + switch(command.split(' ')[0]) { + case '/room': + const room = command.split(' ')[1]; + + if (!room) { + socket.emit('no room argument'); + break; + } + + //broadcast to the old room + socket.broadcast.to(socket.user.room).emit('message', { emphasis: true, text: `${socket.user.username} left chat` }); + + socket.leave(socket.user.room); + socket.user.room = room; + socket.join(socket.user.room); + + //broadcast to the new room + socket.broadcast.to(socket.user.room).emit('message', { emphasis: true, text: `${socket.user.username} entered chat` }); + socket.emit('message', { emphasis: true, text: `Entered room ${socket.user.room}` }); + break; + + default: + socket.emit('message', { emphasis: true, text: 'Unknown command' }); + } +}; + +module.exports = chat; + +//TODO: record messages in a database +//TODO: handle message backlog on connection +//TODO: add banning and muting controls diff --git a/server/server.js b/server/server.js index fe1aa6b..f9c826b 100644 --- a/server/server.js +++ b/server/server.js @@ -5,6 +5,11 @@ require('dotenv').config(); const express = require('express'); const app = express(); const server = require('http').Server(app); +const io = require('socket.io')(server, { + cors: { + origin: '*' + } +}); const bodyParser = require('body-parser'); const cors = require('cors'); @@ -15,8 +20,8 @@ app.use(cors()); //database connection const database = require('./database'); -//access the news -app.use('/chat', require('./chat')); +//access the chat +require('./chat')(io.of('/chat')); //error on access app.get('*', (req, res) => {