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/*
Fosscord: A FOSS re-implementation and extension of the Discord.com backend.
Copyright (C) 2023 Fosscord and Fosscord Contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { Request, Response, Router } from "express";
import FileType from "file-type";
import fs from "fs/promises";
import { HTTPError } from "lambert-server";
import { join } from "path";
const defaultAvatarHashMap = new Map([
["0", "1f0bfc0865d324c2587920a7d80c609b"],
["1", "c09a43a372ba81e3018c3151d4ed4773"],
["2", "7c8f476123d28d103efe381543274c25"],
["3", "6f26ddd1bf59740c536d2274bb834a05"],
["4", "3c6ccb83716d1e4fb91d3082f6b21d77"],
["5", "4c1b599b1ef5b9f1874fdb9933f3e03b"],
]);
const defaultGroupDMAvatarHashMap = new Map([
["0", "3b70bb66089c60f8be5e214bf8574c9d"],
["1", "9581acd31832465bdeaa5385b0e919a3"],
["2", "a8a4727cf2dc2939bd3c657fad4463fa"],
["3", "2e46fe14586f8e95471c0917f56726b5"],
["4", "fac7e78de9753d4a37083bba74c1d9ef"],
["5", "4ab900144b0865430dc9be825c838faa"],
["6", "1276374a404452756f3c9cc2601508a5"],
["7", "904bf9f1b61f53ef4a3b7a893afeabe3"],
]);
const router = Router();
async function getFile(path: string) {
try {
return fs.readFile(path);
} catch (error) {
try {
const files = await fs.readdir(path);
if (!files.length) return null;
return fs.readFile(join(path, files[0]));
} catch (error) {
return null;
}
}
}
router.get("/avatars/:id", async (req: Request, res: Response) => {
let { id } = req.params;
id = id.split(".")[0]; // remove .file extension
const hash = defaultAvatarHashMap.get(id);
if (!hash) throw new HTTPError("not found", 404);
const path = join(process.cwd(), "assets", "public", `${hash}.png`);
const file = await getFile(path);
if (!file) throw new HTTPError("not found", 404);
const type = await FileType.fromBuffer(file);
res.set("Content-Type", type?.mime);
res.set("Cache-Control", "public, max-age=31536000");
return res.send(file);
});
router.get("/group-avatars/:id", async (req: Request, res: Response) => {
let { id } = req.params;
id = id.split(".")[0]; // remove .file extension
const hash = defaultGroupDMAvatarHashMap.get(id);
if (!hash) throw new HTTPError("not found", 404);
const path = join(process.cwd(), "assets", "public", `${hash}.png`);
const file = await getFile(path);
if (!file) throw new HTTPError("not found", 404);
const type = await FileType.fromBuffer(file);
res.set("Content-Type", type?.mime);
res.set("Cache-Control", "public, max-age=31536000");
return res.send(file);
});
export default router;
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