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Add a voice message protection to easily redact unwanted messages

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This commit is contained in:
Travis Ralston 2021-08-16 20:32:00 -06:00
parent 43da763bb2
commit 453784d7ef
2 changed files with 52 additions and 2 deletions
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45
src/protections/MessageIsVoice.ts Normal file
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@ -0,0 +1,45 @@
/*
Copyright 2021 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import { IProtection } from "./IProtection";
import { Mjolnir } from "../Mjolnir";
import { LogLevel, Permalinks, UserID } from "matrix-bot-sdk";
import { logMessage } from "../LogProxy";
import config from "../config";
export class MessageIsVoice implements IProtection {
constructor() {
}
public get name(): string {
return 'MessageIsVoiceProtection';
}
public async handleEvent(mjolnir: Mjolnir, roomId: string, event: any): Promise<any> {
if (event['type'] === 'm.room.message' && event['content']) {
if (event['content']['msgtype'] !== 'm.audio') return;
if (event['content']['org.matrix.msc3245.voice'] === undefined) return;
await logMessage(LogLevel.INFO, "MessageIsVoice", `Redacting event from ${event['sender']} for posting a voice message. ${Permalinks.forEvent(roomId, event['event_id'], [new UserID(await mjolnir.client.getUserId()).domain])}`);
// Redact the event
if (!config.noop) {
await mjolnir.client.redactEvent(roomId, event['event_id'], "Voice messages are not permitted here");
} else {
await logMessage(LogLevel.WARN, "FirstMessageIsImage", `Tried to redact ${event['event_id']} in ${roomId} but Mjolnir is running in no-op mode`, roomId);
}
}
}
}

9
src/protections/protections.ts
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@ -1,5 +1,5 @@
/*
Copyright 2019 The Matrix.org Foundation C.I.C.
Copyright 2019 - 2021 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@ -18,6 +18,7 @@ import { FirstMessageIsImage } from "./FirstMessageIsImage";
import { IProtection } from "./IProtection";
import { BasicFlooding, MAX_PER_MINUTE } from "./BasicFlooding";
import { WordList } from "./WordList";
import { MessageIsVoice } from "./MessageIsVoice";
export const PROTECTIONS: PossibleProtections = {
[new FirstMessageIsImage().name]: {
@ -34,7 +35,11 @@ export const PROTECTIONS: PossibleProtections = {
description: "If a user posts a monitored word a set amount of time after joining, they " +
"will be banned from that room. This will not publish the ban to a ban list.",
factory: () => new WordList(),
}
},
[new MessageIsVoice().name]: {
description: "If a user posts a voice message, that message will be redacted. No bans are issued.",
factory: () => new MessageIsVoice(),
},
};
export interface PossibleProtections {