mirror of
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118 lines
4.6 KiB
TypeScript
118 lines
4.6 KiB
TypeScript
/*
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Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
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Copyright (C) 2023 Spacebar and Spacebar Contributors
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import { Router, Response, Request } from "express";
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import { Config, Snowflake } from "@spacebar/util";
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import { storage } from "@spacebar/cdn";
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import { fileTypeFromBuffer } from "file-type";
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import { HTTPError } from "lambert-server";
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import crypto from "crypto";
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import { multer } from "../util/multer";
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// TODO: check premium and animated pfp are allowed in the config
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// TODO: generate different sizes of icon
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// TODO: generate different image types of icon
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// TODO: delete old icons
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const ANIMATED_MIME_TYPES = ["image/apng", "image/gif", "image/gifv"];
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const STATIC_MIME_TYPES = ["image/png", "image/jpeg", "image/webp", "image/svg+xml", "image/svg"];
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const ALLOWED_MIME_TYPES = [...ANIMATED_MIME_TYPES, ...STATIC_MIME_TYPES];
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export class BasicCrdFileRouterOptions {
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public pathPrefix: string;
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public fallbackToAvatarPath: boolean = true;
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constructor(data: Partial<BasicCrdFileRouterOptions> = {}) {
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Object.assign(this, data);
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}
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}
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export function createBasicCrdFileRouter(opts: BasicCrdFileRouterOptions) {
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const router = Router({ mergeParams: true });
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router.post("/:user_id", multer.single("file"), async (req: Request, res: Response) => {
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if (req.headers.signature !== Config.get().security.requestSignature) throw new HTTPError("Invalid request signature");
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if (!req.file) throw new HTTPError("Missing file");
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const { buffer, size } = req.file;
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const { user_id } = req.params as { [key: string]: string };
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let hash = crypto.createHash("md5").update(buffer).digest("hex");
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const type = await fileTypeFromBuffer(buffer);
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if (!type || !ALLOWED_MIME_TYPES.includes(type.mime)) throw new HTTPError("Invalid file type");
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if (ANIMATED_MIME_TYPES.includes(type.mime)) hash = `a_${hash}`; // animated icons have a_ infront of the hash
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const path = `${opts.pathPrefix}/${user_id}/${hash}`;
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const endpoint = Config.get().cdn.endpointPublic;
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await storage.set(path, buffer);
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return res.json({
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id: hash,
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content_type: type.mime,
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size,
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url: `${endpoint}${req.baseUrl}/${user_id}/${hash}`,
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});
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});
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router.get("/:user_id", async (req: Request, res: Response) => {
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let { user_id } = req.params as { [key: string]: string };
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user_id = user_id.split(".")[0]; // remove .file extension
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const path = `${opts.pathPrefix}/${user_id}`;
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const file = await storage.get(path);
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if (!file) throw new HTTPError("not found", 404);
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const type = await fileTypeFromBuffer(file);
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res.set("Content-Type", type?.mime);
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res.set("Cache-Control", "public, max-age=31536000");
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return res.send(file);
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});
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const getAvatar = async (req: Request, res: Response) => {
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const { user_id } = req.params as { [key: string]: string };
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let { hash } = req.params as { [key: string]: string };
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hash = hash.split(".")[0]; // remove .file extension
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const path = `${opts.pathPrefix}/${user_id}/${hash}`;
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const file = await storage.get(path);
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if (!file) throw new HTTPError("not found", 404);
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const type = await fileTypeFromBuffer(file);
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res.set("Content-Type", type?.mime);
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res.set("Cache-Control", "public, max-age=31536000");
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return res.send(file);
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};
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router.get("/:user_id/:hash", getAvatar);
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router.delete("/:user_id/:hash", async (req: Request, res: Response) => {
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if (req.headers.signature !== Config.get().security.requestSignature) throw new HTTPError("Invalid request signature");
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const { user_id, hash } = req.params as { [key: string]: string };
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const path = `${opts.pathPrefix}/${user_id}/${hash}`;
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await storage.delete(path);
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return res.send({ success: true });
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});
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return router;
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}
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