Introduce processor

src/server/api/stream/home.ts

@@ -0,0 +1,95 @@
+import * as websocket from 'websocket';
+import * as redis from 'redis';
+import * as debug from 'debug';
+
+import User from '../models/user';
+import Mute from '../models/mute';
+import { pack as packPost } from '../models/post';
+import readNotification from '../common/read-notification';
+
+const log = debug('misskey');
+
+export default async function(request: websocket.request, connection: websocket.connection, subscriber: redis.RedisClient, user: any) {
+	// Subscribe Home stream channel
+	subscriber.subscribe(`misskey:user-stream:${user._id}`);
+
+	const mute = await Mute.find({
+		muter_id: user._id,
+		deleted_at: { $exists: false }
+	});
+	const mutedUserIds = mute.map(m => m.mutee_id.toString());
+
+	subscriber.on('message', async (channel, data) => {
+		switch (channel.split(':')[1]) {
+			case 'user-stream':
+				try {
+					const x = JSON.parse(data);
+
+					if (x.type == 'post') {
+						if (mutedUserIds.indexOf(x.body.user_id) != -1) {
+							return;
+						}
+						if (x.body.reply != null && mutedUserIds.indexOf(x.body.reply.user_id) != -1) {
+							return;
+						}
+						if (x.body.repost != null && mutedUserIds.indexOf(x.body.repost.user_id) != -1) {
+							return;
+						}
+					} else if (x.type == 'notification') {
+						if (mutedUserIds.indexOf(x.body.user_id) != -1) {
+							return;
+						}
+					}
+
+					connection.send(data);
+				} catch (e) {
+					connection.send(data);
+				}
+				break;
+			case 'post-stream':
+				const postId = channel.split(':')[2];
+				log(`RECEIVED: ${postId} ${data} by @${user.username}`);
+				const post = await packPost(postId, user, {
+					detail: true
+				});
+				connection.send(JSON.stringify({
+					type: 'post-updated',
+					body: {
+						post: post
+					}
+				}));
+				break;
+		}
+	});
+
+	connection.on('message', data => {
+		const msg = JSON.parse(data.utf8Data);
+
+		switch (msg.type) {
+			case 'api':
+				// TODO
+				break;
+
+			case 'alive':
+				// Update lastUsedAt
+				User.update({ _id: user._id }, {
+					$set: {
+						'account.last_used_at': new Date()
+					}
+				});
+				break;
+
+			case 'read_notification':
+				if (!msg.id) return;
+				readNotification(user._id, msg.id);
+				break;
+
+			case 'capture':
+				if (!msg.id) return;
+				const postId = msg.id;
+				log(`CAPTURE: ${postId} by @${user.username}`);
+				subscriber.subscribe(`misskey:post-stream:${postId}`);
+				break;
+		}
+	});
+}