dyno-bot/Dyno-streams-develop/lib/webhooks.js
2020-09-12 19:08:48 +01:00

92 lines
2.7 KiB
JavaScript

const EventEmitter = require('events').EventEmitter;
const axios = require('axios');
const url = require('url');
const config = require('../config.json');
const crypto = require('crypto');
class Webhooks extends EventEmitter {
constructor(app, models, manager) {
super();
this.app = app;
this.models = models;
this.manager = manager;
this.start();
}
start() {
this.app.post('/twitch/live/:id', this.twitch.bind(this));
this.app.get('/twitch/live/:id', this.twitchVerify.bind(this));
}
twitch(req, res) {
let userID = req.params.id;
let header = req.get('X-Hub-Signature').split('=');
let hash = crypto.createHmac(header[0], config.twitch.webhookSecret)
.update(JSON.stringify(req.body))
.digest('hex');
if (hash === header[1]) {
let isLive = req.body.data.length > 0 ? true : false;
this.emit('twitch', req.body.data[0], userID, isLive);
return res.status(202).end();
}
return res.status(401).end();
}
async twitchVerify(req, res) {
if (req.query && req.query['hub.challenge'] && req.query['hub.mode'] === 'subscribe') {
let userID = req.params.id;
let res1;
try {
res1 = await axios.get(`https://api.twitch.tv/helix/users?id=${userID}`, {
headers: {
'Authorization': `Bearer ${this.manager.twitchAccess}`
}
});
} catch (e) {
console.log(e);
}
let user = res1.data.data[0];
let subscription = await this.models.StreamSubscription.findOne({ id: user.id });
if (subscription) {
subscription.lastSub = new Date();
subscription.save();
} else {
this.models.StreamSubscription.create({
service: 'twitch',
handle: user.login,
id: user.id,
lastSub: new Date()
});
}
console.log(`Registered subscription for ${user.login}`);
return res.send(req.query['hub.challenge']);
} else if (req.query && req.query['hub.mode'] === 'denied') {
console.log(`Subscription denied for ${req.params.id}`);
} else {
await this.models.StreamSubscription.remove({
service: 'twitch',
id: req.params.id
});
console.log(`Deleted subscription for ${req.params.id}`);
return res.status(200).end();
}
}
}
module.exports = Webhooks;