From 90f8fe7e538bb7e52d2558152a0390e693f39b11 Mon Sep 17 00:00:00 2001
From: Akihiko Odaki <nekomanma@pixiv.co.jp>
Date: Thu, 29 Mar 2018 01:20:40 +0900
Subject: Introduce processor

---
 src/server/api/streaming.ts | 118 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 src/server/api/streaming.ts

(limited to 'src/server/api/streaming.ts')

diff --git a/src/server/api/streaming.ts b/src/server/api/streaming.ts
new file mode 100644
index 0000000000..95f444e00b
--- /dev/null
+++ b/src/server/api/streaming.ts
@@ -0,0 +1,118 @@
+import * as http from 'http';
+import * as websocket from 'websocket';
+import * as redis from 'redis';
+import config from '../../conf';
+import { default as User, IUser } from './models/user';
+import AccessToken from './models/access-token';
+import isNativeToken from './common/is-native-token';
+
+import homeStream from './stream/home';
+import driveStream from './stream/drive';
+import messagingStream from './stream/messaging';
+import messagingIndexStream from './stream/messaging-index';
+import othelloGameStream from './stream/othello-game';
+import othelloStream from './stream/othello';
+import serverStream from './stream/server';
+import requestsStream from './stream/requests';
+import channelStream from './stream/channel';
+
+module.exports = (server: http.Server) => {
+	/**
+	 * Init websocket server
+	 */
+	const ws = new websocket.server({
+		httpServer: server
+	});
+
+	ws.on('request', async (request) => {
+		const connection = request.accept();
+
+		if (request.resourceURL.pathname === '/server') {
+			serverStream(request, connection);
+			return;
+		}
+
+		if (request.resourceURL.pathname === '/requests') {
+			requestsStream(request, connection);
+			return;
+		}
+
+		// Connect to Redis
+		const subscriber = redis.createClient(
+			config.redis.port, config.redis.host);
+
+		connection.on('close', () => {
+			subscriber.unsubscribe();
+			subscriber.quit();
+		});
+
+		if (request.resourceURL.pathname === '/channel') {
+			channelStream(request, connection, subscriber);
+			return;
+		}
+
+		const user = await authenticate(request.resourceURL.query.i);
+
+		if (request.resourceURL.pathname === '/othello-game') {
+			othelloGameStream(request, connection, subscriber, user);
+			return;
+		}
+
+		if (user == null) {
+			connection.send('authentication-failed');
+			connection.close();
+			return;
+		}
+
+		const channel =
+			request.resourceURL.pathname === '/' ? homeStream :
+			request.resourceURL.pathname === '/drive' ? driveStream :
+			request.resourceURL.pathname === '/messaging' ? messagingStream :
+			request.resourceURL.pathname === '/messaging-index' ? messagingIndexStream :
+			request.resourceURL.pathname === '/othello' ? othelloStream :
+			null;
+
+		if (channel !== null) {
+			channel(request, connection, subscriber, user);
+		} else {
+			connection.close();
+		}
+	});
+};
+
+/**
+ * 接続してきたユーザーを取得します
+ * @param token 送信されてきたトークン
+ */
+function authenticate(token: string): Promise<IUser> {
+	if (token == null) {
+		return Promise.resolve(null);
+	}
+
+	return new Promise(async (resolve, reject) => {
+		if (isNativeToken(token)) {
+			// Fetch user
+			const user: IUser = await User
+				.findOne({
+					host: null,
+					'account.token': token
+				});
+
+			resolve(user);
+		} else {
+			const accessToken = await AccessToken.findOne({
+				hash: token
+			});
+
+			if (accessToken == null) {
+				return reject('invalid signature');
+			}
+
+			// Fetch user
+			const user: IUser = await User
+				.findOne({ _id: accessToken.user_id });
+
+			resolve(user);
+		}
+	});
+}
-- 
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