iceshrimp/packages/backend/src/misc/check-word-mute.ts
Johann150 84c409a52b fix: regular expressions in word mutes (#8254)
* fix: handle regex exceptions for word mutes

* add i18n strings

Co-authored-by: rinsuki <428rinsuki+git@gmail.com>

* stricter input validation in backend

* add migration for hard mutes

* fix

* use correct regex library in migration

* use query builder to avoid SQL injection

Co-authored-by: Robin B <robflop98@outlook.com>
Co-authored-by: rinsuki <428rinsuki+git@gmail.com>
2022-02-10 19:47:46 +09:00

45 lines
1.0 KiB
TypeScript

const RE2 = require('re2');
import { Note } from '@/models/entities/note';
import { User } from '@/models/entities/user';
type NoteLike = {
userId: Note['userId'];
text: Note['text'];
};
type UserLike = {
id: User['id'];
};
export async function checkWordMute(note: NoteLike, me: UserLike | null | undefined, mutedWords: Array<string | string[]>): Promise<boolean> {
// 自分自身
if (me && (note.userId === me.id)) return false;
if (mutedWords.length > 0) {
if (note.text == null) return false;
const matched = mutedWords.some(filter => {
if (Array.isArray(filter)) {
return filter.every(keyword => note.text!.includes(keyword));
} else {
// represents RegExp
const regexp = filter.match(/^\/(.+)\/(.*)$/);
// This should never happen due to input sanitisation.
if (!regexp) return false;
try {
return new RE2(regexp[1], regexp[2]).test(note.text!);
} catch (err) {
// This should never happen due to input sanitisation.
return false;
}
}
});
if (matched) return true;
}
return false;
}