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app.js
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'use strict';
const builder = require('botbuilder');
const restify = require('restify');
const passport = require('passport-restify');
const OIDCStrategy = require('passport-azure-ad').OIDCStrategy;
const expressSession = require('express-session');
const crypto = require('crypto');
const querystring = require('querystring');
const emoji = require('node-emoji');
const refresh = require('./helpers/token');
require('dotenv').config();
var telemetryModule = require('./helpers/telemetry-module');
var appInsights = require("applicationinsights");
appInsights.setup(process.env.APPINSIGHTS_INSTRUMENTATIONKEY).start();
var appInsightsClient = appInsights.getClient();
//=========================================================
// Bot Setup
//=========================================================
// Setup Restify Server
var server = restify.createServer();
server.listen(process.env.port || process.env.PORT || 3979, function () {
console.log('%s listening to %s', server.name, server.url);
});
// Create chat bot
var connector = new builder.ChatConnector({
appId: process.env.MICROSOFT_APP_ID,
appPassword: process.env.MICROSOFT_APP_PASSWORD,
gzipData: true
});
var bot = new builder.UniversalBot(connector, {
persistConversationData: true
});
bot.use(builder.Middleware.sendTyping());
server.post('/api/messages', connector.listen());
server.get('/', restify.serveStatic({
'directory': __dirname,
'default': 'index.html'
}));
//=========================================================
// Auth Setup
//=========================================================
server.use(restify.queryParser());
server.use(restify.bodyParser());
server.use(expressSession({ secret: process.env.SESSION_SECRET, resave: true, saveUninitialized: false }));
server.use(passport.initialize());
server.get('/login', function (req, res, next) {
passport.authenticate('azuread-openidconnect', { failureRedirect: '/login', customState: req.query.address, resourceURL: process.env.MICROSOFT_RESOURCE_GRAPH },
function (err, user, info) {
if (err) {
console.log(err);
return next(err);
}
if (!user) {
return res.redirect('/login');
}
req.logIn(user, function (err) {
if (err) {
return next(err);
} else {
return res.send('Welcome ' + req.user.displayName);
}
});
})(req, res, next);
});
server.get('/api/OAuthCallback/',
passport.authenticate('azuread-openidconnect', { failureRedirect: '/login', resourceURL: process.env.MICROSOFT_RESOURCE_GRAPH }),
(req, res) => {
const address = JSON.parse(req.query.state);
const magicCode = crypto.randomBytes(4).toString('hex');
const messageData = { magicCode: magicCode, accessToken: req.authInfo.accessToken, refreshToken: req.authInfo.refreshToken, name: req.user.displayName };
var continueMsg = new builder.Message().address(address).text(JSON.stringify(messageData));
bot.receive(continueMsg.toMessage());
var page = "<!doctype html><style>body{text-align: center; padding: 150px;}h1{font-size: 40px;}body{font: 20px Helvetica, sans-serif; color: #333;}article{display: block; text-align: left; width: 650px; margin: 0 auto;}code{font-family:Consolas,monaco,monospace;}</style><article> <h1>Welcome " + req.user.displayName + "!</h1> <div> <p>Please copy this code and paste it back to your chat so your authentication can complete:</p><code>" + magicCode + "</code></div></article>";
res.end(page);
});
passport.serializeUser(function(user, done) {
done(null, user);
});
passport.deserializeUser(function(id, done) {
done(null, id);
});
let strategy = {
redirectUrl: process.env.AUTHBOT_CALLBACKHOST +'/api/OAuthCallback',
realm: process.env.MICROSOFT_REALM,
clientID: process.env.MICROSOFT_CLIENT_ID,
clientSecret: process.env.MICROSOFT_CLIENT_SECRET,
validateIssuer: false,
allowHttpForRedirectUrl: true,
issuer: null,
identityMetadata: 'https://login.microsoftonline.com/' + process.env.MICROSOFT_REALM + '/.well-known/openid-configuration',
skipUserProfile: true,
scope: null,
loggingLevel: 'error',
nonceLifetime: null,
responseType: 'code id_token',
responseMode: 'query',
passReqToCallback: true,
};
passport.use(new OIDCStrategy(strategy,
(req, iss, sub, profile, accessToken, refreshToken, done) => {
if (!profile.oid) {
return done(new Error("No oid found"), null);
}
// asynchronous verification, for effect...
process.nextTick(() => {
var tokens = { accessToken: accessToken, refreshToken: refreshToken };
return done(null, profile, tokens);
});
}
));
//=========================================================
// Bots Dialogs
//=========================================================
function login(session) {
var telemetryData = telemetryModule.createTelemetry(session);
appInsightsClient.trackEvent("botLaunched", telemetryData);
// Generate signin link
const address = session.message.address;
// TODO: Encrypt the address string
const link = process.env.AUTHBOT_CALLBACKHOST + '/login?address=' + querystring.escape(JSON.stringify(address));
var msg = new builder.Message(session)
.attachments([
new builder.SigninCard(session)
.text("Let's get started! " + emoji.get('smiley') + " Please sign-in below...")
.button("Sign-In", link)
]);
session.send(msg);
builder.Prompts.text(session, "You must first sign into your account.");
}
// Dialogs
var Account = require('./dialogs/account');
var Find = require('./dialogs/find');
var Winwire = require('./dialogs/winwire');
var Logout = require('./dialogs/logout');
var backToMenu = require('./dialogs/backToMenu');
// Setup dialogs
bot.dialog('/account', Account.Dialog);
bot.dialog('/find', Find.Dialog);
bot.dialog('/winwire', Winwire.Dialog);
bot.dialog('/logout', Logout.Dialog);
bot.dialog('/backToMenu', backToMenu.Dialog);
bot.dialog('signin', [
(session, results) => {
session.endDialog();
}
]);
bot.dialog('/', [
(session, args, next) => {
if (!session.userData.userName) {
session.beginDialog('signinPrompt');
} else {
next();
}
},
(session, results, next) => {
if (session.userData.userName) { // They're logged in
refresh(session.userData.refreshToken, (err, body, res) => {
if (err || body.error) {
session.send("Something happened " + emoji.get('thunder_cloud_and_rain'));
session.endDialog();
}
session.userData.accessTokenCRM = body.accessToken;
session.send("Welcome " + session.userData.userName + "! " + emoji.get('smiley'));
session.beginDialog('workPrompt');
});
} else {
session.endConversation("Goodbye! " + emoji.get('wave'));
}
},
(session, results) => {
if (!session.userData.userName) {
session.endConversation("Goodbye! " + emoji.get('wave') + " You have been logged out.");
}
}
]);
bot.dialog('workPrompt', [
(session) => {
var msg = new builder.Message(session)
.attachmentLayout(builder.AttachmentLayout.list)
.attachments([
new builder.HeroCard(session)
.title("What would you like to do?")
.buttons([
builder.CardAction.imBack(session, Account.Label, Account.Label),
builder.CardAction.imBack(session, Find.Label, Find.Label),
builder.CardAction.imBack(session, Winwire.Label, Winwire.Label),
builder.CardAction.imBack(session, Logout.Label, Logout.Label)
]),
]);
builder.Prompts.choice(
session,
msg,
[Account.Label, Find.Label, Winwire.Label, Logout.Label],
{
maxRetries: 3,
retryPrompt: 'Not a valid option'
});
},
function (session, result) {
if (!result.response) {
// exhausted attemps and no selection, start over
session.send('Ooops! Too many attemps ' + emoji.get("slightly_frowning_face") + ' But don\'t worry, I\'m handling that exception and you can try again!');
return session.endDialog();
}
// on error, start over
session.on('error', function (err) {
session.send('Failed with message: %s', err.message);
session.endDialog();
});
// continue on proper dialog
var selection = result.response.entity;
switch (selection) {
case Account.Label:
return session.beginDialog('/account');
case Find.Label:
return session.beginDialog('/find');
case Winwire.Label:
return session.beginDialog('/winwire');
case Logout.Label:
return session.beginDialog('/logout');
}
}
]);
bot.dialog('signinPrompt', [
(session, args) => {
if (args && args.invalid) {
// Re-prompt the user to click the link
builder.Prompts.text(session, "Please click the signin link.");
} else {
if (session.userData.refreshToken) {
// TODO: Authorization
//get access token from refresh token
} else {
login(session);
}
}
},
(session, results) => {
//resuming
session.userData.loginData = JSON.parse(results.response);
if (session.userData.loginData && session.userData.loginData.magicCode) {
session.beginDialog('validateCode');
} else {
session.replaceDialog('signinPrompt', { invalid: true });
}
},
(session, results) => {
if (results.response) {
//code validated
session.userData.userName = session.userData.loginData.name;
session.endDialogWithResult({ response: true });
} else {
session.endDialogWithResult({ response: false });
}
}
]);
bot.dialog('validateCode', [
(session) => {
builder.Prompts.text(session, "Please enter the code you received or type 'quit' to end. ");
},
(session, results) => {
const code = results.response;
if (code === 'quit') {
session.endDialogWithResult({ response: false });
} else {
if (code === session.userData.loginData.magicCode) {
var telemetryData = telemetryModule.createTelemetry(session);
appInsightsClient.trackEvent("userLoggedIn");
// Authenticated, save
session.userData.accessToken = session.userData.loginData.accessToken;
session.userData.refreshToken = session.userData.loginData.refreshToken;
// getting access token for CRM
refresh(session.userData.refreshToken, (err, body, res) => {
if (err || body.error) {
session.send("Something happened " + emoji.get('thunder_cloud_and_rain'));
session.endDialog();
}
session.userData.accessTokenCRM = body.accessToken;
session.endDialogWithResult({ response: true });
});
} else {
var telemetryData = telemetryModule.createTelemetry(session);
appInsightsClient.trackEvent("invalidCode", telemetryData);
session.send("hmm... Looks like that was an invalid code. Please try again.");
session.replaceDialog('validateCode');
}
}
}
]);