v12 (#5712)

Co-authored-by: MeiMei <30769358+mei23@users.noreply.github.com>
Co-authored-by: Satsuki Yanagi <17376330+u1-liquid@users.noreply.github.com>

src/server/api/stream/channels/antenna.ts

@@ -0,0 +1,41 @@
+import autobind from 'autobind-decorator';
+import Channel from '../channel';
+import { Notes } from '../../../../models';
+import shouldMuteThisNote from '../../../../misc/should-mute-this-note';
+
+export default class extends Channel {
+	public readonly chName = 'antenna';
+	public static shouldShare = false;
+	public static requireCredential = false;
+	private antennaId: string;
+
+	@autobind
+	public async init(params: any) {
+		this.antennaId = params.antennaId as string;
+
+		// Subscribe stream
+		this.subscriber.on(`antennaStream:${this.antennaId}`, this.onEvent);
+	}
+
+	@autobind
+	private async onEvent(data: any) {
+		const { type, body } = data;
+
+		if (type === 'note') {
+			const note = await Notes.pack(body.id, this.user, { detail: true });
+
+			// 流れてきたNoteがミュートしているユーザーが関わるものだったら無視する
+			if (shouldMuteThisNote(note, this.muting)) return;
+
+			this.send('note', note);
+		} else {
+			this.send(type, body);
+		}
+	}
+
+	@autobind
+	public dispose() {
+		// Unsubscribe events
+		this.subscriber.off(`antennaStream:${this.antennaId}`, this.onEvent);
+	}
+}