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index.js
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index.js
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'use strict';
const line = require('@line/bot-sdk');
const express = require('express');
const signin = require('./sign_in.js');
const bodyParser = require('body-parser');
const firebase = require("firebase-admin");
const https = require('https');
const fs = require('fs');
// create LINE SDK config from env variables
const config = {
enablePushMessages: !!process.env.ENABLE_PUSH_MESSAGES,
channelAccessToken: process.env.CHANNEL_ACCESS_TOKEN,
channelSecret: process.env.CHANNEL_SECRET,
firebase: {
databaseURL: `https://${process.env.FIREBASE_PROJECT_ID}.firebaseio.com`,
credential: firebase.credential.cert(require(process.env.FIREBASE_SERVICE_ACCOUNT_KEY)),
},
credentials: {
cert: process.env.CERT_PATH,
key: process.env.PRIVATE_KEY_PATH,
ca: process.env.CA_PATH,
},
};
/**
* user {
* account: String,
* password: String,
* workMorning: Boolean,
* workAfternoon: Boolean
* }
*/
firebase.initializeApp(config.firebase);
// Get a reference to the database service
const database = firebase.database();
// create LINE SDK client
const client = new line.Client(config);
// create Express app
// about Express itself: https://expressjs.com/
const app = express();
// static files
app.use('/liff', express.static(__dirname + '/liff'));
// register a webhook handler with middleware
// about the middleware, please refer to doc
app.post('/callback', line.middleware(config), (req, res) => {
Promise
.all(req.body.events.map(handleEvent))
.then((result) => res.json(result))
.catch((err) => {
console.error(err);
res.status(500).end();
});
});
app.get('/ping', (req, res) => {
res.send('done');
});
app.get('/action', (req, res) => {
let type = req.query.type;
switch (type) {
case 'goWorkMorning':
console.log('執行早上自動上班打卡');
autoSignIn(true, false);
res.sendStatus(200);
break;
case 'goWorkAfternoon':
console.log('執行下午自動上班打卡');
autoSignIn(false, false);
res.sendStatus(200);
break;
case 'offWorkMorning':
console.log('執行早上自動下班打卡');
autoSignIn(true, true);
res.sendStatus(200);
break;
case 'offWorkAfternoon':
console.log('執行下午自動下班打卡');
autoSignIn(false, true);
res.sendStatus(200);
break;
case 'resetWorkState':
console.log('重置請假狀態');
resetWorkState();
res.sendStatus(200);
break;
default:
res.status(500);
break;
}
});
app.post('/setting', bodyParser.json(), (req, res) => {
if (!req.body.userId) {
res.status(500).send('userId is empty.');
return;
}
if (!req.body.account) {
res.status(500).send('account is empty.');
return;
}
if (!req.body.password) {
res.status(500).send('password is empty.');
return;
}
signin.login(req.body.account, req.body.password)
.then(saveUser.bind(null, req.body.userId, {
account: req.body.account,
password: req.body.password,
workMorning: true,
workAfternoon: true
})).then(() => ({ status: 200, message: `${req.body.account} 帳號綁定成功` }))
.catch(() => {
return deleteUser(req.body.userId)
.then(() => ({ status: 500, message: `帳號綁定失敗,${req.body.account} 登入測試發生錯誤` }))
.catch(e => ({ status: 500, message: `帳號綁定失敗,${req.body.account} 登入測試發生錯誤` }));
}).then(data => {
pushMessage(req.body.userId, data.message);
res.status(data.status).send(data.message);
});
});
app.get('/setting', (req, res) => {
if (!req.query.userId) {
res.status(500).send('userId is empty.');
return;
}
readUser(req.query.userId)
.then(user => res.send(user))
.catch((e) => res.status(500).send(e));
});
app.post('/cancel', bodyParser.json(), (req, res) => {
if (!req.body.userId) {
res.status(500).send('userId is empty.');
return;
}
deleteUser(req.body.userId)
.then(() => ({ status: 200, message: '帳號取消綁定成功'}))
.catch(() => ({ status: 500, message: '帳號取消綁定失敗'}))
.then(data => {
pushMessage(req.body.userId, data.message);
res.sendStatus(data.status);
});
});
app.post('/reset', bodyParser.json(), (req, res) => {
if (!req.body.userId) {
res.status(500).send('userId is empty.');
return;
}
takeLeave(req.body.userId, true, true)
.then(() => ({ status: 200, message: '重置請假狀態成功'}))
.catch(() => ({ status: 500, message: '重置請假狀態失敗'}))
.then(data => {
pushMessage(req.body.userId, data.message);
res.sendStatus(data.status);
});
});
app.get('/signin', (req, res) => {
if (!req.query.userId) {
res.status(500).send('userId is empty.');
return;
}
if (!req.query.time) {
res.status(500).send('time is empty.');
return;
}
readUser(req.body.userId).then((user) => {
return signin.signin(user.account, user.password, req.query.time);
}).then(message => { res.send(message); }).catch(e => {
res.status(500).send(e);
});
});
// event handler
function handleEvent(event) {
if (event.type !== 'message' || event.message.type !== 'text') {
// ignore non-text-message event
return Promise.resolve(null);
}
let userId = event.source.userId;
let text = event.message.text;
if (text === '登入測試') {
return checkAccountPassword(userId)
.then(readUser.bind(null, userId))
.then(user => signin.login(user.account, user.password))
.then(() => '登入成功')
.catch(e => '登入失敗: ' + e)
.then(message => replyMessage(event.replyToken, message));
} else if (text === '打卡') {
return checkAccountPassword(userId)
.then(readUser.bind(null, userId))
.then(user => signin.signin(user.account, user.password, getTime()))
.catch(e => '打卡失敗: ' + e)
.then(message => replyMessage(event.replyToken, message));
} else if (text === '請整天') {
return checkAccountPassword(userId)
.then(takeLeave.bind(null, userId, false, false))
.then(() => '已標記請整天,今天將不自動打卡')
.catch(e => '標記請整天失敗: ' + e)
.then(message => replyMessage(event.replyToken, message));
} else if (text === '請早上') {
return checkAccountPassword(userId)
.then(takeLeave.bind(null, userId, false, true))
.then(() => '已標記請早上,今天早上將不自動打卡')
.catch(e => '標記請早上失敗: ' + e)
.then(message => replyMessage(event.replyToken, message));
} else if (text === '請下午') {
return checkAccountPassword(userId)
.then(takeLeave.bind(null, userId, true, false))
.then(() => '已標記請下午,今天下午將不自動打卡')
.catch(e => '標記請下午失敗: ' + e)
.then(message => replyMessage(event.replyToken, message));
} else {
return readHelp()
.catch(() => `help:\n測試帳號連線:登入測試\n立即打卡:打卡\n或使用選單功能。`)
.then(message => replyMessage(event.replyToken, message));
}
}
function checkAccountPassword(userId) {
return readUser(userId).then(user => {
if (!user || !user.account) {
throw new Error('未設定帳號');
} else if (!user || !user.password) {
throw new Error('未設定密碼');
}
});
}
function takeLeave(userId, morning, afternoon) {
return readUser(userId).then((user) => {
user.workMorning = morning;
user.workAfternoon = afternoon;
return user;
}).then(saveUser.bind(null, userId));
}
function getRandom(min, max) {
return Math.floor(Math.random()*max)+min;
}
function getTime() {
let date = new Date();
date.setTime(date.getTime() - 60000);
let hour = `${date.getHours()}`.padStart(2, '0');
let minute = `${date.getMinutes()}`.padStart(2, '0');
let time = `${hour}${minute}`;
return time;
}
function autoSignIn(isMorning, isOffWork) {
readUsers()
.then(users => {
users.forEach(user => {
let offset = getRandom(0, 20) * 60 * 1000;
console.log(`enqeeue auto Sign In for ${user.account} , wait ${offset / 60000} mins`);
if (!(!isMorning && !isOffWork && !user.workMorning && user.workAfternoon ||
!isMorning && isOffWork && !user.workMorning && user.workAfternoon ||
!isMorning && isOffWork && user.workMorning && user.workAfternoon ||
isMorning && !isOffWork && user.workMorning && !user.workAfternoon ||
isMorning && !isOffWork && user.workMorning && user.workAfternoon ||
isMorning && isOffWork && user.workMorning && !user.workAfternoon)) {
console.log(`${user.account} take a leave, so cancel auto Sign In`);
return;
}
setTimeout(function(user) {
console.log(`auto Sign In for ${user.account}`);
signin.signin(user.account, user.password, getTime())
.then(message => {
console.log(`auto Sign In for ${user.account}, ${message}`);
return message;
})
.catch(e => '打卡失敗: ' + e)
.then(message => pushMessage(user.userId, message));
}.bind(null, user), offset);
});
});
}
function readHelp() {
return firebase.database().ref('/help').once('value')
.then(snapshot => snapshot.val())
.then(help => {
if (!help) throw new Error('Help not found');
return help;
});
}
function readUser(userId) {
return firebase.database().ref(`/users/${userId}`).once('value')
.then(snapshot => snapshot.val())
.then(user => {
if (!user) throw new Error('User not exist');
return user;
});
}
function readUsers() {
return firebase.database().ref('/users').once('value')
.then(snapshot => snapshot.val())
.then(users => {
return Object.keys(users)
.filter(userId => { return users[userId] && users[userId].account && users[userId].password; })
.map(userId => ({ userId, ...users[userId] }));
})
}
function resetWorkState() {
readUsers()
.then(users => {
return Promise.all(users.map(user => takeLeave(user.userId, true, true).catch(e => {
console.log(`重置 ${user.userId} 請假狀態失敗: ${e}`);
})));
})
.then(() => {
console.log(`重置請假狀態完成`);
});
}
function saveUser(userId, user) {
return database.ref('users/' + userId).set(user);
}
function deleteUser(userId) {
return saveUser(userId, null);
}
function pushMessage(userId, message) {
if (!config.enablePushMessages) return;
let reply = { type: 'text', text: message };
client.pushMessage(userId, reply);
}
function replyMessage(replyToken, message) {
let reply = { type: 'text', text: message };
return client.replyMessage(replyToken, reply);
}
// listen on port
const port = process.env.PORT || 8080;
let server = app;
if (config.credentials.cert && config.credentials.key && config.credentials.ca) {
let credentials = {
cert: fs.readFileSync(config.credentials.cert, 'utf-8'),
key: fs.readFileSync(config.credentials.key, 'utf-8'),
ca: fs.readFileSync(config.credentials.ca, 'utf-8'),
}
server = https.createServer(credentials, app);
}
server.listen(port, () => {
console.log(`listening on ${port}`);
});