Merge remote-tracking branch 'origin/master'

backend/service-authentication/Dockerfile

@@ -1,8 +1,6 @@
-# syntax=docker/dockerfile:1
 FROM node:current-slim
-ENV NODE_ENV=production
 WORKDIR /app-authentication
 COPY ["package.json", "package-lock.json*", "./"]
-RUN npm install --production
+RUN npm install
 COPY . .
 CMD [ "node", "server.js" ]

backend/service-authentication/auth.js

@@ -0,0 +1,44 @@
+const sessionJwt = require ('./sessionJWT');
+const queries = require('./mongodbQueries');
+
+// ici, on récupère le contenu du cookie de session JWT.
+// celui-ci contient le userId mais également des informations
+// concernant sa date d'expiration.
+function getSession (req) {
+    return sessionJwt.decodeSessionCookie(req);
+}
+module.exports.getSession = getSession;
+
+// cette fonction ajoute le cookie de session au headers du
+// message qui sera renvoyé à Angular. Si le cookie actuel
+// est "vieux", on en recrée ici un nouveau.
+function setSessionCookie (req, res, session) {
+    sessionJwt.createSessionCookie(req, res, session);
+}
+module.exports.setSessionCookie = setSessionCookie;
+
+// fonction pour récupérer le userId provenant du cookie
+// de session. Si ce dernier n'existe pas, on renvoie
+// l'ID -1.
+function getUserId(session) {
+    if (typeof session.userId === 'undefined') return -1;
+    return session.userId;
+}
+module.exports.getUserId = getUserId;
+
+async function authenticate(req, res) {
+    const login = req.body.login;
+    const password = req.body.password;
+
+    const userList = await queries.checkLoginQuery(login, password);
+    if (userList !== undefined && userList[0] !== undefined && userList[0].idUtilisateur > 0){
+        console.log("check");
+        setSessionCookie (req, res, { username: login});
+        return userList[0].idUtilisateur;
+    } else {
+        setSessionCookie (req, res, {username: -1});
+        return -1;
+    }
+
+}
+module.exports.authenticate = authenticate;

backend/service-authentication/checkLogin.js

@@ -0,0 +1,21 @@
+const {sendError, sendMessage} = require ("./message");
+const auth = require ('./auth');
+
+async function checkLogin (req,res) {
+    if (typeof req.body.login === 'undefined')
+        return sendError(res, 'Vous n\'avez pas envoyé le champ login');
+    if (typeof req.body.password === 'undefined')
+        return sendError(res, 'Vous n\'avez pas envoyé le champ password');
+    
+    const result = await auth.authenticate(req, res);
+    if (result > 0){
+        return sendMessage(res, {
+            id: result,
+            username: req.body.login
+        });
+    }
+    else{
+        return sendError(res, 'Invalid username or password');
+    }
+}
+module.exports = checkLogin;

backend/service-authentication/config.js

@@ -0,0 +1,15 @@
+const config = {
+    // paramètres de connexion à la base de données
+    mongodbDatabase: 'chat',
+    mongodbHost:     'mongodb://mongodb-authentication:27017/',
+    charset:       'utf8',
+    mongodbLogin:  '',
+    mongodbPassword: '',
+
+    // les noms des tables
+    mongodbUtilisateurs: 'users'
+};
+module.exports = config;
+
+
+

backend/service-authentication/keys/jwtRS256.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----

backend/service-authentication/keys/jwtRS256.key.pub

@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvtgwBVQ26VNO1XD+PTZD
+dZJdWXufontRZIO/ev7OkvH8qM6gmZDJOZQRrbaMI2w3jGr/x1uDhIaafRtyRsQ9
+Jdjb2GVjQc9deiNMfeEvA1YJZjiCLDy4igtmitPup3WrG+xb9asNAuQUtn1bXKM/
+3ecVxIKq6j/wh1578ra9WGpcTZjx+1u+3LjviWehb9Gwu8FOIPBu9bcIf48JZLr3
+Zq/0Fv0Atw7gTJBDAb2B9Zsjxc59oKKyWguRQG6COUaxZ/Lsyczv0FIFFsfAKzui
+hqfI+EsVGJ1nsFBH3gAdeUW2RX7/z+7cmR305sf3cdN7kcK8ZwgrG7/lnszSUf79
+uQIDAQAB
+-----END PUBLIC KEY-----

backend/service-authentication/keys/jwtRS256.sh

@@ -0,0 +1,5 @@
+ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key
+# Don't add passphrase
+openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub
+cat jwtRS256.key
+cat jwtRS256.key.pub

backend/service-authentication/message.js

@@ -0,0 +1,13 @@
+// renvoie un message au format JSON. On a besoin de passer en paramètre
+// res, la réponse que l'on envoie au client (Angular). Le paramètre
+// data est un objet JavaScript. Globalement, cette fonction est
+// équivalente au "echo json_encode(data);" que vous utilisiez en PHP
+function sendMessage (res, data) {
+    res.json ({ status: 'ok', data: data });
+}
+
+function sendError (res, reason) {
+    res.json ({ status: 'error', data: {reason: reason }});
+}
+
+module.exports = { sendMessage, sendError };

backend/service-authentication/mongodbConnect.js

@@ -0,0 +1,22 @@
+const config = require('./config');
+const MongoClient = require( 'mongodb' ).MongoClient;
+const uri = config.mongodbHost;
+let db;
+
+module.exports = {
+    connectToServer: function( callback ) {
+        MongoClient.connect( uri,  { useNewUrlParser: true,  useUnifiedTopology: true }, function( err, client ) {
+            if(err) throw err;
+            console.log('mongodb-authentication-checkConnection'+client===undefined);
+            if (client !== undefined) console.log(client.isConnected());
+            db  = client.db(config.mongodbDatabase);
+
+            return callback( err );
+        });
+    },
+
+    getDB: function() {
+        return db;
+    }
+};
+

backend/service-authentication/mongodbQueries.js

@@ -0,0 +1,16 @@
+const config = require('./config');
+const mongoDB = require ('./mongodbConnect').getDB();
+
+function checkLoginQuery(login, password){
+    // SELECT idUtilisateurs
+    // FROM utilisateurs
+    // WHERE login = ? AND password = ?;
+    return new Promise((resolve, reject) => {
+        resolve(mongoDB.collection(config.mongodbUtilisateurs).find(
+            {login: login, password: password},
+            {projection: {idUtilisateur: 1, _id: 0}}).toArray());
+    });
+}
+module.exports.checkLoginQuery = checkLoginQuery;
+
+

backend/service-authentication/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "service-authentication",
+  "version": "1.0.0",
+  "description": "",
+  "main": "server.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "Van Khai PHAN",
+  "license": "ISC",
+  "dependencies": {
+    "body-parser": "^1.19.0",
+    "cookie-parser": "^1.4.5",
+    "cors": "^2.8.5",
+    "express": "^4.17.1",
+    "jsonwebtoken": "^8.5.1",
+    "mongodb": "^3.6.9"
+  }
+}

backend/service-authentication/server.js

@@ -0,0 +1,32 @@
+const express = require('express');
+const app = express();
+const port = process.env.PORT || 3000;
+
+const cookieParser = require('cookie-parser');
+app.use(cookieParser());
+
+const bodyParser = require('body-parser');
+app.use(bodyParser.urlencoded({extended:true}));
+app.use(bodyParser.json());
+
+const cors = require('cors');
+app.use(cors({origin: 'http://127.0.0.1:4200', credentials: true}));
+
+const mongoConnect = require('./mongodbConnect');
+
+mongoConnect.connectToServer(function( err, client ) {
+    if (err) 
+        console.log(err);
+
+    const checkLogin = require('./checkLogin');
+
+    app.post('/checkLogin', (req, res) => { 
+        checkLogin(req,res); 
+    });
+
+    app.listen(port, () => {
+        console.log (`listening on port ${port}`);
+    });
+});
+
+

backend/service-authentication/sessionJWT.js

@@ -0,0 +1,88 @@
+const sessionJWT = require ('jsonwebtoken');
+const fs = require ('fs');
+
+// renvoie un nouveau token JWT
+function createSessionJWT (userId) {
+    // ci-dessous, on met en place le cookie de session JWT :
+    // 1/ on recupere notre clef privee
+    const RSA_PRIVATE_KEY = fs.readFileSync('./keys/jwtRS256.key');
+
+    // 2/ on signe un token JWT. Le payload est l'identifiant de
+    // l'utilisateur ainsi qu'une date d'expiration à mi-parcours :
+    // on récupérra ultérieurement ces informations, qui permettront
+    // de savoir si le token est valide ou non et de connaître l'ID
+    // de l'utilisateur. Dans le token, le champ exp indique la date
+    // de validité du token (pas besoin de se relogguer tant que la
+    // date actuelle est inférieure à exp) et le champ midExp indique
+    // à partir de quel moment on doit recréer un nouveau cookie de
+    // session.
+    const jwtToken = sessionJWT.sign(
+        {
+            userId: userId,
+            midExp: Math.floor(Date.now() / 1000) + 1800 // validité: 30mn
+        },
+        RSA_PRIVATE_KEY,
+        {
+            algorithm: 'RS256',
+            expiresIn: '1h' // champ exp: validité 1h
+    });
+
+    return jwtToken;
+}
+
+
+// crée un cookie de session JWT (Si le JWT de la requête est encore valide,
+// on l'utilise, sinon on en recrée un nouveau)
+function createSessionCookie(req, res, payload) {
+    // on regarde si le payload contient les champs userId et midExp. Si c'est le
+    // cas, c'est qu'on a reçu dans la request un cookie. On va donc vérifier si
+    // ce cookie est encore valide ou non : si la date actuelle est inférieure à
+    // midExp, alors le cookie est encore valide et on peut le renvoyer. Sinon,
+    // on doit recalculer un nouveau cookie.
+    let jwtToken = '';
+    if ((typeof payload.userId !== 'undefined') && 
+        (typeof payload.midExp !== 'undefined') &&
+        (Math.floor(Date.now() / 1000) <= payload.midExp)) {
+        jwtToken = req.cookies.SESSIONID;
+    }
+    else {
+        // on crée un nouveau cookie
+        jwtToken = createSessionJWT(payload.userId);
+    }
+
+    // on renvoie le cookie au client
+    // on met le secure à false afin de pouvoir utiliser http plutôt que https
+    res.cookie('SESSIONID', jwtToken, {httpOnly:true, secure:false});
+}
+module.exports.createSessionCookie = createSessionCookie;
+
+
+// décode un cookie de session et renvoie les informations contenues dans ce
+// cookie, notamment le userId. Si le cookie n'existe pas, la fonction renvoie
+// juste un objet avec un userId égal à -1.
+function decodeSessionCookie(req) {
+    // si l'on n'a pas de cookie de session, on renvoie une session avec vide,
+    // avec juste un userId à -1
+    console.log(req.cookies);
+    if (typeof req.cookies.SESSIONID === 'undefined') {
+        return { userId: -1 };
+    }
+    const sessionid = req.cookies.SESSIONID;
+
+    // on lit la clef publique
+    const RSA_PUBLIC_KEY = fs.readFileSync('./keys/jwtRS256.key.pub');
+
+    // on récupère les données du cookie
+    try {
+        const token = sessionJWT.verify(
+            sessionid,
+            RSA_PUBLIC_KEY,
+            {algorithms: ['RS256']});
+        return token;
+    }
+    catch (err) {
+        return {userId: -1};
+    }
+}
+module.exports.decodeSessionCookie = decodeSessionCookie;
+

backend/service-message/Dockerfile

@@ -1,8 +1,6 @@
-# syntax=docker/dockerfile:1
 FROM node:current-slim
-ENV NODE_ENV=production
 WORKDIR /app-message
 COPY ["package.json", "package-lock.json*", "./"]
-RUN npm install --production
+RUN npm install --NODE_ENV
 COPY . .
 CMD [ "node", "server.js" ]

backend/service-message/auth.js

@@ -0,0 +1,26 @@
+const sessionJwt = require ('./sessionJWT');
+
+// ici, on récupère le contenu du cookie de session JWT.
+// celui-ci contient le userId mais également des informations
+// concernant sa date d'expiration.
+function getSession (req) {
+    return sessionJwt.decodeSessionCookie(req);
+}
+module.exports.getSession = getSession;
+
+// cette fonction ajoute le cookie de session au headers du
+// message qui sera renvoyé à Angular. Si le cookie actuel
+// est "vieux", on en recrée ici un nouveau.
+function setSessionCookie (req, res, session) {
+    sessionJwt.createSessionCookie(req, res, session);
+}
+module.exports.setSessionCookie = setSessionCookie;
+
+// fonction pour récupérer le userId provenant du cookie
+// de session. Si ce dernier n'existe pas, on renvoie
+// l'ID -1.
+function getUsername(session) {
+    if (typeof session.username === 'undefined') return -1;
+    return session.username;
+}
+module.exports.getUsername = getUsername;

backend/service-message/config.js

@@ -0,0 +1,13 @@
+const config = {
+    mongodbDatabase: 'chat',
+    mongodbHost:     'mongodb://mongodb-message:27020/',
+    charset:       'utf8',
+    mongodbLogin:  '',
+    mongodbPassword: '',
+
+    mongodbMessages: 'messages'
+};
+module.exports = config;
+
+
+

backend/service-message/message.js

@@ -0,0 +1,13 @@
+// renvoie un message au format JSON. On a besoin de passer en paramètre
+// res, la réponse que l'on envoie au client (Angular). Le paramètre
+// data est un objet JavaScript. Globalement, cette fonction est
+// équivalente au "echo json_encode(data);" que vous utilisiez en PHP
+function sendMessage (res, data) {
+    res.json ({ status: 'ok', data: data });
+}
+
+function sendError (res, reason) {
+    res.json ({ status: 'error', data: {reason: reason }});
+}
+
+module.exports = { sendMessage, sendError };

backend/service-message/mongodb-message.js

@@ -0,0 +1,34 @@
+const config = require('./config');
+const mongoose = require( 'mongoose' );
+const url = config.mongodbHost;
+
+mongoose.connect(url,({useNewUrlParser: true, useUnifiedTopology: true}));
+console.log(mongoose.connection.readyState);
+
+const schemaMessage = mongoose.Schema({
+    username:{
+        type: String,
+        required: true
+    },
+    date:{
+        type: Date,
+        required: true
+    },
+    channel:{
+        type: String,
+        required: true
+    },
+    message:{
+        type: String,
+        required: true
+    }
+});
+
+const messages = mongoose.model(config.mongodbMessages, schemaMessage);
+
+// messages.find({},(err, messages) => {
+//     if(err) throw  err;
+//     console.log(messages);
+// });
+
+module.exports = messages;

backend/service-message/package-lock.json

@@ -0,0 +1,849 @@
+{
+  "name": "service-message",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@types/bson": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/@types/bson/-/bson-4.0.3.tgz",
+      "integrity": "sha512-mVRvYnTOZJz3ccpxhr3wgxVmSeiYinW+zlzQz3SXWaJmD1DuL05Jeq7nKw3SnbKmbleW5qrLG5vdyWe/A9sXhw==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "@types/component-emitter": {
+      "version": "1.2.10",
+      "resolved": "https://registry.npmjs.org/@types/component-emitter/-/component-emitter-1.2.10.tgz",
+      "integrity": "sha512-bsjleuRKWmGqajMerkzox19aGbscQX5rmmvvXl3wlIp5gMG1HgkiwPxsN5p070fBDKTNSPgojVbuY1+HWMbFhg=="
+    },
+    "@types/cookie": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/@types/cookie/-/cookie-0.4.0.tgz",
+      "integrity": "sha512-y7mImlc/rNkvCRmg8gC3/lj87S7pTUIJ6QGjwHR9WQJcFs+ZMTOaoPrkdFA/YdbuqVEmEbb5RdhVxMkAcgOnpg=="
+    },
+    "@types/cors": {
+      "version": "2.8.10",
+      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.10.tgz",
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+    },
+    "@types/mongodb": {
+      "version": "3.6.16",
+      "resolved": "https://registry.npmjs.org/@types/mongodb/-/mongodb-3.6.16.tgz",
+      "integrity": "sha512-D3tM0iRUet3TiIMAdvovxAIRG9gYqFd4j7visGwmPNdQj8Fq/uFFfRxyGCgEwVXAs0NnJPMI/QGVTADxDwhmSQ==",
+      "requires": {
+        "@types/bson": "*",
+        "@types/node": "*"
+      }
+    },
+    "@types/node": {
+      "version": "15.6.1",
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+    },
+    "accepts": {
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+      "requires": {
+        "mime-types": "~2.1.24",
+        "negotiator": "0.6.2"
+      }
+    },
+    "array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+    },
+    "base64-arraybuffer": {
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+    },
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+        "readable-stream": "^2.3.5",
+        "safe-buffer": "^5.1.1"
+      }
+    },
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+}

backend/service-message/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "service-message",
+  "version": "1.0.0",
+  "description": "",
+  "main": "server.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "body-parser": "^1.19.0",
+    "cookie-parser": "^1.4.5",
+    "cors": "^2.8.5",
+    "express": "^4.17.1",
+    "fs": "0.0.1-security",
+    "jsonwebtoken": "^8.5.1",
+    "mongoose": "^5.12.11",
+    "socket.io": "^4.1.2"
+  }
+}

backend/service-message/server.js

@@ -0,0 +1,81 @@
+const express = require('express');
+const http = require('http');
+const { Server } = require("socket.io");
+const cors = require ('cors');
+const cookieParser = require('cookie-parser');
+const auth = require ('./auth');
+const bodyParser = require ('body-parser');
+const {sendError, sendMessage} = require ('./message');
+const messages = require('./mongodb-message');
+
+const app = express();
+const server = http.createServer(app);
+const io = new Server(server);
+const port = process.env.PORT || 3000;
+
+app.use(bodyParser.json());
+app.use(cors({origin: 'http://127.0.0.1:4200', credentials: true}));
+app.use(cookieParser());
+
+
+app.get('/', (req, res) => {
+    const session = auth.getSession(req);
+    const getUsername = auth.getUsername(session);
+    if (getUsername === -1) {
+        //sendError(res, 'not authenticated');
+    }
+    //auth.setSessionCookie(req, res, session);
+    res.sendFile(__dirname + '/index.html');
+
+});
+
+io.on('connection',socket => {
+    let users = {}
+
+    socket.on('user', (userData) => {
+        console.log(`${getUsername} joined the chat.`);
+        users[socket.id] = getUsername;
+        messages.find({},(err, res) => {
+            if(err) throw err;
+            if(res.length > 0){
+                const savedChat = res;
+                socket.emit('general',savedChat);
+            }
+        });
+    });
+
+    socket.on('general',function(data){
+        socket.broadcast.emit('general',data);
+
+        const username = data.username;
+        const date = Date.now();
+        const channel = 'general';
+        const message = data.message;
+
+        messages.insertMany([{
+                username: username,
+                date: date,
+                channel: channel,
+                message: message
+            }
+        ]).then(function(){
+            console.log(data, "inserted");
+        }).catch(function(error){
+            console.log("error",error);
+        });
+
+    });
+
+    socket.on('typing',(user)=>{
+        socket.broadcast.emit('notifyTyping',user)
+    })
+
+    socket.on("disconnect", function() {
+        console.log(`${socket.id} left the chat.`);
+    });
+
+});
+
+server.listen(port, () => {
+    console.log('listening on *:3000');
+});

backend/service-message/sessionJWT.js

@@ -0,0 +1,87 @@
+const sessionJWT = require ('jsonwebtoken');
+const fs = require ('fs');
+
+// renvoie un nouveau token JWT
+function createSessionJWT (userId) {
+    // ci-dessous, on met en place le cookie de session JWT :
+    // 1/ on recupere notre clef privee
+    const RSA_PRIVATE_KEY = fs.readFileSync('./keys/jwtRS256.key');
+
+    // 2/ on signe un token JWT. Le payload est l'identifiant de
+    // l'utilisateur ainsi qu'une date d'expiration à mi-parcours :
+    // on récupérra ultérieurement ces informations, qui permettront
+    // de savoir si le token est valide ou non et de connaître l'ID
+    // de l'utilisateur. Dans le token, le champ exp indique la date
+    // de validité du token (pas besoin de se relogguer tant que la
+    // date actuelle est inférieure à exp) et le champ midExp indique
+    // à partir de quel moment on doit recréer un nouveau cookie de
+    // session.
+    const jwtToken = sessionJWT.sign(
+        {
+            userId: userId,
+            midExp: Math.floor(Date.now() / 1000) + 1800 // validité: 30mn
+        },
+        RSA_PRIVATE_KEY,
+        {
+            algorithm: 'RS256',
+            expiresIn: '1h' // champ exp: validité 1h
+    });
+
+    return jwtToken;
+}
+
+
+// crée un cookie de session JWT (Si le JWT de la requête est encore valide,
+// on l'utilise, sinon on en recrée un nouveau)
+function createSessionCookie(req, res, payload) {
+    // on regarde si le payload contient les champs userId et midExp. Si c'est le
+    // cas, c'est qu'on a reçu dans la request un cookie. On va donc vérifier si
+    // ce cookie est encore valide ou non : si la date actuelle est inférieure à
+    // midExp, alors le cookie est encore valide et on peut le renvoyer. Sinon,
+    // on doit recalculer un nouveau cookie.
+    let jwtToken = '';
+    if ((typeof payload.userId !== 'undefined') && 
+        (typeof payload.midExp !== 'undefined') &&
+        (Math.floor(Date.now() / 1000) <= payload.midExp)) {
+        jwtToken = req.cookies.SESSIONID;
+    }
+    else {
+        // on crée un nouveau cookie
+        jwtToken = createSessionJWT(payload.userId);
+    }
+
+    // on renvoie le cookie au client
+    // on met le secure à false afin de pouvoir utiliser http plutôt que https
+    res.cookie('SESSIONID', jwtToken, {httpOnly:true, secure:false});
+}
+module.exports.createSessionCookie = createSessionCookie;
+
+
+// décode un cookie de session et renvoie les informations contenues dans ce
+// cookie, notamment le userId. Si le cookie n'existe pas, la fonction renvoie
+// juste un objet avec un userId égal à -1.
+function decodeSessionCookie(req) {
+    // si l'on n'a pas de cookie de session, on renvoie une session avec vide,
+    // avec juste un userId à -1
+    if (typeof req.cookies.SESSIONID === 'undefined') {
+        return { userId: -1 };
+    }
+    const sessionid = req.cookies.SESSIONID;
+
+    // on lit la clef publique
+    const RSA_PUBLIC_KEY = fs.readFileSync('./keys/jwtRS256.key.pub');
+
+    // on récupère les données du cookie
+    try {
+        const token = sessionJWT.verify(
+            sessionid,
+            RSA_PUBLIC_KEY,
+            {algorithms: ['RS256']});
+        return token;
+    }
+    catch (err) {
+        return {userId: -1};
+    }
+}
+module.exports.decodeSessionCookie = decodeSessionCookie;
+

docker-compose.yml

@@ -1,82 +1,51 @@
-version: '3.7'
-networks:
-  net:
+version: '3.8'
 
 services:
 
-  frontend:
-    image: frontend
-    environment:
-      SERVICE_ADRESS: frontend
-      SERVICE_PORT: 4200
-    ports:
-      - 4200:4200
-    networks:
-      - net
-
   service-authentication:
-    image: service-authentication
+    container_name: service-authentication
+    build: backend/service-authentication
+    command: node server.js
+    volumes:
+      - backend/service-authentication
+      - backend/service-authentication/node_modules
+    ports:
+      - 3000:3000
+    depends_on:
+      - mongodb-authentication
+    links:
+      - mongodb-authentication
     environment:
-      SERVICE_ADRESS: service-authentication
-      SERVICE_PORT: 3000
-      ports:
-        - 3000:3000
-    networks:
-      - net
+      NODE_ENV: development
 
   service-message:
-    image: service-message
+    container_name: service-message
+    build: backend/service-message
+    command: node server.js
+    volumes:
+      - backend/service-message
+      - backend/service-message/node_modules
+    ports:
+      - 3001:3000
+    depends_on:
+      - mongodb-message
+    links:
+      - mongodb-message
     environment:
-      SERVICE_ADRESS: service-message
-      SERVICE_PORT: 3000
-      ports:
-        - 3001:3000
-    networks:
-      - net
-  service-notification:
-    image: service-notification
-    environment:
-      SERVICE_ADRESS: service-notification
-      SERVICE_PORT: 3000
-      ports:
-        - 3002:3000
-    networks:
-      - net
-
-  service-privateroom:
-    image: service-privateroom
-    environment:
-      SERVICE_ADRESS: service-privateroom
-      SERVICE_PORT: 3000
-      ports:
-        - 3003:3000
-    networks:
-      - net
+      NODE_ENV: development
 
   mongodb-authentication:
     image: mongo
-    networks:
-      - net
+    container_name: mongodb-authentication
+    volumes:
+      - ./backend/service-authentication/database:/data/db
     ports:
-      -  27017:27017
+      - 27017:27017
 
   mongodb-message:
     image: mongo
-    networks:
-      - net
+    container_name: mongodb-message
+    volumes:
+      - ./backend/service-message/database:/data/db
     ports:
       - 27020:27017
-
-  mongodb-notification:
-    image: mongo
-    networks:
-      - net
-    ports:
-      - 27021:27017
-
-  mongodb-privateroom:
-    image: mongo
-    networks:
-      - net
-    ports:
-      - 27022:27017