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/*
Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
Copyright (C) 2023 Spacebar and Spacebar 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 { Router, Response, Request } from "express";
import crypto from "node:crypto";
import { fileTypeFromBuffer } from "file-type";
import { HTTPError } from "lambert-server/HTTPError";
import { Config } from "@spacebar/util";
import { storage, multer, cache, cacheNotFound } from "@spacebar/cdn/util";
// 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({ mergeParams: true });
const pathPrefix = "splashes";
router.post("/:guild_id", 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 } = req.params as { [key: string]: string };
let hash = crypto.createHash("md5").update(buffer).digest("hex");
const type = await fileTypeFromBuffer(buffer);
if (!type || !ALLOWED_MIME_TYPES.includes(type.mime)) throw new HTTPError("Invalid file type");
if (ANIMATED_MIME_TYPES.includes(type.mime)) hash = `a_${hash}`; // animated icons have a_ infront of the hash
const path = `${pathPrefix}/${guild_id}/${hash}`;
const endpoint = Config.get().cdn.endpointPublic;
await storage.set(path, buffer);
return res.json({
id: hash,
content_type: type.mime,
size,
url: `${endpoint}${req.baseUrl}/${guild_id}/${hash}`,
});
});
router.get("/:guild_id", cache, async (req: Request, res: Response) => {
let { guild_id } = req.params as { [key: string]: string };
guild_id = guild_id.split(".")[0]; // remove .file extension
const path = `${pathPrefix}/${guild_id}`;
const file = await storage.get(path);
if (!file) return cacheNotFound(req, res);
const type = await fileTypeFromBuffer(file);
res.set("Content-Type", type?.mime);
return res.send(file);
});
export const getAvatar = async (req: Request, res: Response) => {
const { guild_id } = req.params as { [key: string]: string };
let { hash } = req.params as { [key: string]: string };
hash = hash.split(".")[0]; // remove .file extension
const path = `${pathPrefix}/${guild_id}/${hash}`;
const file = await storage.get(path);
if (!file) return cacheNotFound(req, res);
const type = await fileTypeFromBuffer(file);
res.set("Content-Type", type?.mime);
return res.send(file);
};
router.get("/:guild_id/:hash", cache, getAvatar);
router.delete("/:guild_id/:id", async (req: Request, res: Response) => {
if (req.headers.signature !== Config.get().security.requestSignature) throw new HTTPError("Invalid request signature");
const { guild_id, id } = req.params as { [key: string]: string };
const path = `${pathPrefix}/${guild_id}/${id}`;
await storage.delete(path);
return res.send({ success: true });
});
export default router;
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