Sharkey/src/server/api/streaming.ts

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import * as http from 'http';
import * as websocket from 'websocket';
import * as redis from 'redis';
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import Xev from 'xev';
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import MainStreamConnection from './stream';
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import { ParsedUrlQuery } from 'querystring';
import authenticate from './authenticate';
import { EventEmitter } from 'events';
import config from '../../config';
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module.exports = (server: http.Server) => {
// Init websocket server
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const ws = new websocket.server({
httpServer: server
});
ws.on('request', async (request) => {
const connection = request.accept();
const q = request.resourceURL.query as ParsedUrlQuery;
const [user, app] = await authenticate(q.i as string);
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let ev: EventEmitter;
if (config.redis) {
// Connect to Redis
const subscriber = redis.createClient(
config.redis.port, config.redis.host);
subscriber.subscribe('misskey');
ev = new EventEmitter();
subscriber.on('message', async (_, data) => {
const obj = JSON.parse(data);
ev.emit(obj.channel, obj.message);
});
connection.once('close', () => {
subscriber.unsubscribe();
subscriber.quit();
});
} else {
ev = new Xev();
}
const main = new MainStreamConnection(connection, ev, user, app);
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// 後方互換性のため
if (request.resourceURL.pathname !== '/streaming') {
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main.sendMessageToWsOverride = (type: string, payload: any) => {
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if (type == 'channel') {
type = payload.type;
payload = payload.body;
}
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if (type.startsWith('api:')) {
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type = type.replace('api:', 'api-res:');
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}
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connection.send(JSON.stringify({
type: type,
body: payload
}));
};
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main.connectChannel(Math.random().toString(), null,
request.resourceURL.pathname === '/' ? 'homeTimeline' :
request.resourceURL.pathname === '/local-timeline' ? 'localTimeline' :
request.resourceURL.pathname === '/hybrid-timeline' ? 'hybridTimeline' :
request.resourceURL.pathname === '/global-timeline' ? 'globalTimeline' : null);
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if (request.resourceURL.pathname === '/') {
main.connectChannel(Math.random().toString(), null, 'main');
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}
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}
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connection.once('close', () => {
ev.removeAllListeners();
main.dispose();
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});
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connection.on('message', async (data) => {
if (data.utf8Data == 'ping') {
connection.send('pong');
}
});
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});
};