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This commit is contained in:
syuilo
2018-04-13 06:06:18 +09:00
parent a3bd4ba426
commit 3368fe8552
20 changed files with 582 additions and 609 deletions
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117
src/server/api/bot/interfaces/line.ts
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@ -1,5 +1,5 @@
import * as EventEmitter from 'events';
import * as express from 'express';
import * as Router from 'koa-router';
import * as request from 'request';
import * as crypto from 'crypto';
import User from '../../../../models/user';
@ -158,82 +158,81 @@ class LineBot extends BotCore {
}
}
module.exports = async (app: express.Application) => {
if (config.line_bot == null) return;
const handler = new EventEmitter();
const handler = new EventEmitter();
handler.on('event', async (ev) => {
handler.on('event', async (ev) => {
const sourceId = ev.source.userId;
const sessionId = `line-bot-sessions:${sourceId}`;
const sourceId = ev.source.userId;
const sessionId = `line-bot-sessions:${sourceId}`;
const session = await redis.get(sessionId);
let bot: LineBot;
const session = await redis.get(sessionId);
let bot: LineBot;
if (session == null) {
const user = await User.findOne({
host: null,
'line': {
userId: sourceId
}
});
bot = new LineBot(user);
bot.on('signin', user => {
User.update(user._id, {
$set: {
'line': {
userId: sourceId
}
}
});
});
bot.on('signout', user => {
User.update(user._id, {
$set: {
'line': {
userId: null
}
}
});
});
redis.set(sessionId, JSON.stringify(bot.export()));
} else {
bot = LineBot.import(JSON.parse(session));
}
bot.on('updated', () => {
redis.set(sessionId, JSON.stringify(bot.export()));
if (session == null) {
const user = await User.findOne({
host: null,
'line': {
userId: sourceId
}
});
if (session != null) bot.refreshUser();
bot = new LineBot(user);
bot.react(ev);
bot.on('signin', user => {
User.update(user._id, {
$set: {
'line': {
userId: sourceId
}
}
});
});
bot.on('signout', user => {
User.update(user._id, {
$set: {
'line': {
userId: null
}
}
});
});
redis.set(sessionId, JSON.stringify(bot.export()));
} else {
bot = LineBot.import(JSON.parse(session));
}
bot.on('updated', () => {
redis.set(sessionId, JSON.stringify(bot.export()));
});
app.post('/hooks/line', (req, res, next) => {
// req.headers['x-line-signature'] は常に string ですが、型定義の都合上
// string | string[] になっているので string を明示しています
const sig1 = req.headers['x-line-signature'] as string;
if (session != null) bot.refreshUser();
bot.react(ev);
});
// Init router
const router = new Router();
if (config.line_bot) {
router.post('/hooks/line', ctx => {
const sig1 = ctx.headers['x-line-signature'];
const hash = crypto.createHmac('SHA256', config.line_bot.channel_secret)
.update((req as any).rawBody);
.update(ctx.request.rawBody);
const sig2 = hash.digest('base64');
// シグネチャ比較
if (sig1 === sig2) {
req.body.events.forEach(ev => {
ctx.body.events.forEach(ev => {
handler.emit('event', ev);
});
res.sendStatus(200);
} else {
res.sendStatus(400);
ctx.status = 400;
}
});
};
}
module.exports = router;