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/misc/check-hit-antenna.ts

@@ -0,0 +1,53 @@
+import { Antenna } from '../models/entities/antenna';
+import { Note } from '../models/entities/note';
+import { User } from '../models/entities/user';
+import { UserListJoinings } from '../models';
+import parseAcct from './acct/parse';
+import { getFullApAccount } from './convert-host';
+
+export async function checkHitAntenna(antenna: Antenna, note: Note, noteUser: User, followers: User['id'][]): Promise<boolean> {
+	if (note.visibility === 'specified') return false;
+
+	if (note.visibility === 'followers') {
+		if (!followers.includes(antenna.userId)) return false;
+	}
+
+	if (!antenna.withReplies && note.replyId != null) return false;
+
+	if (antenna.src === 'home') {
+		if (!followers.includes(antenna.userId)) return false;
+	} else if (antenna.src === 'list') {
+		const listUsers = (await UserListJoinings.find({
+			userListId: antenna.userListId!
+		})).map(x => x.userId);
+
+		if (!listUsers.includes(note.userId)) return false;
+	} else if (antenna.src === 'users') {
+		const accts = antenna.users.map(x => {
+			const { username, host } = parseAcct(x);
+			return getFullApAccount(username, host).toLowerCase();
+		});
+		if (!accts.includes(getFullApAccount(noteUser.username, noteUser.host).toLowerCase())) return false;
+	}
+
+	if (antenna.keywords.length > 0) {
+		if (note.text == null) return false;
+
+		const matched = antenna.keywords.some(keywords =>
+			keywords.every(keyword =>
+				antenna.caseSensitive
+					? note.text!.includes(keyword)
+					: note.text!.toLowerCase().includes(keyword.toLowerCase())
+			));
+		
+		if (!matched) return false;
+	}
+
+	if (antenna.withFile) {
+		if (note.fileIds.length === 0) return false;
+	}
+
+	// TODO: eval expression
+
+	return true;
+}