app.js
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var express = require('express');
const request = require('request');
const TARGET_URL = 'https://api.line.me/v2/bot/message/reply'
const TOKEN = 'LFi+FvOOFOydz0EKN22WRnQyiilnEiyxe2HVV1WrI54Jnght6+Gga07m7pxqSQltBJG2AV2lYnYOAk4TqxzZFKW9R36CJcQs+NaNEiNKJtgBfT/t3tEta/J6GtXxGz/DqdHnfZqSSfLFpXzun/ITTwdB04t89/1O/w1cDnyilFU='
const PAPAGO_URL = 'https://openapi.naver.com/v1/papago/n2mt'
const PAPAGO_ID = 'r_kuebFKCqBeL3SI_dFb'
const PAPAGO_SECRET = 'Wdz2tudrzB'
const fs = require('fs');
const path = require('path');
const HTTPS = require('https');
const domain = "www.chatbotshin.tk"
const sslport = 23023;
const bodyParser = require('body-parser');
// target language verification
var trans_dest = undefined;
var app = express();
app.use(bodyParser.json());
app.post('/hook', function (req, res) {
var eventObj = req.body.events[0];
var source = eventObj.source;
var message = eventObj.message;
// request log
console.log('======================', new Date() ,'======================');
console.log('[request]', req.body);
console.log('[request source] ', eventObj.source);
console.log('[request message]', eventObj.message);
// language identification & translation
if(eventObj.message.text=='영어' || eventObj.message.text=='프랑스어' || eventObj.message.text=='일본어'){
trans_change(eventObj.message.text);
console.log('[trans_dest]', trans_dest);
}
else if(trans_dest != undefined){
trans(eventObj.replyToken, eventObj.message.text);
}
res.sendStatus(200);
});
function trans(replyToken, message) {
request.post(
{
url: PAPAGO_URL,
headers: {
'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
'X-Naver-Client-Id': `${PAPAGO_ID}`,
'X-Naver-Client-Secret': `${PAPAGO_SECRET}`
},
body: 'source=ko&' + trans_dest + '&text=' + message,
json:true
},(error, response, body) => {
if(!error && response.statusCode == 200) {
console.log(body.message);
var transMessage = body.message.result.translatedText;
request.post(
{
url: TARGET_URL,
headers: {
'Authorization': `Bearer ${TOKEN}`
},
json: {
"replyToken":replyToken,
"messages":[
{
"type":"text",
"text":transMessage
}
]
}
},(error, response, body) => {
console.log(body)
});
}
});
}
// language index identification
function trans_change(index){
if(index == '영어'){
trans_dest = 'target=en';
}
else if(index == '일본어'){
trans_dest = 'target=ja';
}
else if(index == '프랑스어'){
trans_dest = 'target=fr';
}
}
try {
const option = {
ca: fs.readFileSync('/etc/letsencrypt/live/' + domain +'/fullchain.pem'),
key: fs.readFileSync(path.resolve(process.cwd(), '/etc/letsencrypt/live/' + domain +'/privkey.pem'), 'utf8').toString(),
cert: fs.readFileSync(path.resolve(process.cwd(), '/etc/letsencrypt/live/' + domain +'/cert.pem'), 'utf8').toString(),
};
HTTPS.createServer(option, app).listen(sslport, () => {
console.log(`[HTTPS] Server is started on port ${sslport}`);
});
} catch (error) {
console.log('[HTTPS] HTTPS 오류가 발생하였습니다. HTTPS 서버는 실행되지 않습니다.');
console.log(error);
}