iceshrimp/packages/backend/src/const.ts

import config from "@/config/index.js";

export const MAX_NOTE_TEXT_LENGTH =
	config.maxNoteLength != null ? config.maxNoteLength : 3000;

export const SECOND = 1000;
export const SEC = 1000;
export const MINUTE = 60 * SEC;
export const MIN = 60 * SEC;
export const HOUR = 60 * MIN;
export const DAY = 24 * HOUR;

export const USER_ONLINE_THRESHOLD = 1000 * 60 * 10; // 10min
export const USER_ACTIVE_THRESHOLD = 1000 * 60 * 60 * 24 * 3; // 3days

// ブラウザで直接表示することを許可するファイルの種類のリスト
// ここに含まれないものは application/octet-stream としてレスポンスされる
// SVGはXSSを生むので許可しない
export const FILE_TYPE_BROWSERSAFE = [
	// Images
	"image/png",
	"image/gif",
	"image/jpeg",
	"image/webp",
	"image/apng",
	"image/bmp",
	"image/tiff",
	"image/x-icon",

	// OggS
	"audio/opus",
	"video/ogg",
	"audio/ogg",
	"application/ogg",

	// ISO/IEC base media file format
	"video/quicktime",
	"video/mp4",
	"audio/mp4",
	"video/x-m4v",
	"audio/x-m4a",
	"video/3gpp",
	"video/3gpp2",

	"video/mpeg",
	"audio/mpeg",

	"video/webm",
	"audio/webm",

	"audio/aac",
	"audio/x-flac",
	"audio/vnd.wave",
];
/*
https://github.com/sindresorhus/file-type/blob/main/supported.js
https://github.com/sindresorhus/file-type/blob/main/core.js
https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Containers
*/