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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 { Config, Snowflake } from "@fosscord/util";
import crypto from "crypto";
import { Request, Response, Router } from "express";
import FileType from "file-type";
import { HTTPError } from "lambert-server";
import { multer } from "../util/multer";
import { storage } from "../util/Storage";
// TODO: check premium and animated pfp are allowed in the config
// TODO: generate different sizes of icon
// TODO: generate different image types of icon
// TODO: delete old icons
const ANIMATED_MIME_TYPES = ["image/apng", "image/gif", "image/gifv"];
const STATIC_MIME_TYPES = [
"image/png",
"image/jpeg",
"image/webp",
"image/svg+xml",
"image/svg",
];
const ALLOWED_MIME_TYPES = [...ANIMATED_MIME_TYPES, ...STATIC_MIME_TYPES];
const router = Router();
router.post("/", multer.single("file"), async (req: Request, res: Response) => {
if (req.headers.signature !== Config.get().security.requestSignature)
throw new HTTPError("Invalid request signature");
if (!req.file) throw new HTTPError("Missing file");
const { buffer, size } = req.file;
const { guild_id, user_id } = req.params;
let hash = crypto
.createHash("md5")
.update(Snowflake.generate())
.digest("hex");
const type = await FileType.fromBuffer(buffer);
if (!type || !ALLOWED_MIME_TYPES.includes(type.mime))
throw new HTTPError("Invalid file type");
if (ANIMATED_MIME_TYPES.includes(type.mime)) hash = `a_${hash}`; // animated icons have a_ infront of the hash
const path = `guilds/${guild_id}/users/${user_id}/avatars/${hash}`;
const endpoint = Config.get().cdn.endpointPublic || "http://localhost:3001";
await storage.set(path, buffer);
return res.json({
id: hash,
content_type: type.mime,
size,
url: `${endpoint}${req.baseUrl}/${user_id}/${hash}`,
});
});
router.get("/", async (req: Request, res: Response) => {
const { guild_id } = req.params;
let { user_id } = req.params;
user_id = user_id.split(".")[0]; // remove .file extension
const path = `guilds/${guild_id}/users/${user_id}/avatars`;
const file = await storage.get(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("/:hash", async (req: Request, res: Response) => {
const { guild_id, user_id } = req.params;
let { hash } = req.params;
hash = hash.split(".")[0]; // remove .file extension
const path = `guilds/${guild_id}/users/${user_id}/avatars/${hash}`;
const file = await storage.get(path);
if (!file) throw new HTTPError("not found", 404);
const type = await FileType.fromBuffer(file);
res.set("Content-Type", type?.mime);
res.set("Cache-Control", "public, max-age=31536000");
return res.send(file);
});
router.delete("/:id", async (req: Request, res: Response) => {
if (req.headers.signature !== Config.get().security.requestSignature)
throw new HTTPError("Invalid request signature");
const { guild_id, user_id, id } = req.params;
const path = `guilds/${guild_id}/users/${user_id}/avatars/${id}`;
await storage.delete(path);
return res.send({ success: true });
});
export default router;
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