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/*
* Vencord, a modification for Discord's desktop app
* Copyright (c) 2022 Vendicated and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { ApplicationCommandOptionType, sendBotMessage } from "@api/Commands";
import { findOption } from "@api/Commands/commandHelpers";
import { ApplicationCommandInputType } from "@api/Commands/types";
import { Devs } from "@utils/constants";
import definePlugin from "@utils/types";
import { findByCode, findByProps } from "@webpack";
const DRAFT_TYPE = 0;
export default definePlugin({
name: "CorruptMp4s",
description: "Create corrupt mp4s with extremely high or negative duration",
authors: [Devs.Ven],
dependencies: ["CommandsAPI"],
commands: [{
name: "corrupt",
description: "Create a corrupt mp4 with extremely high or negative duration",
inputType: ApplicationCommandInputType.BUILT_IN,
options: [
{
name: "mp4",
description: "the video to corrupt",
type: ApplicationCommandOptionType.ATTACHMENT,
required: true
},
{
name: "kind",
description: "the kind of corruption",
type: ApplicationCommandOptionType.STRING,
choices: [
{
name: "infinite",
value: "infinite",
label: "Very high duration"
},
{
name: "negative",
value: "negative",
label: "Negative duration"
}
]
}
],
execute: async (args, ctx) => {
const UploadStore = findByProps("getUploads");
const upload = UploadStore.getUploads(ctx.channel.id, DRAFT_TYPE)[0];
const video = upload?.item?.file as File | undefined;
if (video?.type !== "video/mp4")
return void sendBotMessage(ctx.channel.id, {
content: "Please upload a mp4 file"
});
const corruption = findOption<string>(args, "kind", "infinite");
const buf = new Uint8Array(await video.arrayBuffer());
let found = false;
// adapted from https://github.com/GeopJr/exorcism/blob/c9a12d77ccbcb49c987b385eafae250906efc297/src/App.svelte#L41-L48
for (let i = 0; i < buf.length; i++) {
if (buf[i] === 0x6d && buf[i + 1] === 0x76 && buf[i + 2] === 0x68 && buf[i + 3] === 0x64) {
let start = i + 18;
buf[start++] = 0x00;
buf[start++] = 0x01;
buf[start++] = corruption === "negative" ? 0xff : 0x7f;
buf[start++] = 0xff;
buf[start++] = 0xff;
buf[start++] = corruption === "negative" ? 0xf0 : 0xff;
found = true;
break;
}
}
if (!found) {
return void sendBotMessage(ctx.channel.id, {
content: "Could not find signature. Is this even a mp4?"
});
}
const newName = video.name.replace(/\.mp4$/i, ".corrupt.mp4");
const promptToUpload = findByCode("UPLOAD_FILE_LIMIT_ERROR");
const file = new File([buf], newName, { type: "video/mp4" });
setImmediate(() => promptToUpload([file], ctx.channel, DRAFT_TYPE));
}
}]
});
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