119 lines
3.3 KiB
TypeScript
119 lines
3.3 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 "@fosscord/util";
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import { storage } from "../util/Storage";
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import FileType from "file-type";
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import { HTTPError } from "lambert-server";
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import { multer } from "../util/multer";
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import imageSize from "image-size";
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const router = Router();
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const SANITIZED_CONTENT_TYPE = [
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"text/html",
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"text/mhtml",
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"multipart/related",
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"application/xhtml+xml",
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];
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router.post(
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"/:channel_id",
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multer.single("file"),
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async (req: Request, res: Response) => {
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if (req.headers.signature !== Config.get().security.requestSignature)
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throw new HTTPError("Invalid request signature");
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if (!req.file) throw new HTTPError("file missing");
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const { buffer, mimetype, size, originalname } = req.file;
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const { channel_id } = req.params;
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const filename = originalname
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.replaceAll(" ", "_")
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.replace(/[^a-zA-Z0-9._]+/g, "");
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const id = Snowflake.generate();
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const path = `attachments/${channel_id}/${id}/${filename}`;
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const endpoint =
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Config.get()?.cdn.endpointPublic || "http://localhost:3001";
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await storage.set(path, buffer);
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let width;
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let height;
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if (mimetype.includes("image")) {
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const dimensions = imageSize(buffer);
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if (dimensions) {
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width = dimensions.width;
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height = dimensions.height;
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}
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}
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const file = {
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id,
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content_type: mimetype,
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filename: filename,
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size,
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url: `${endpoint}/${path}`,
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width,
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height,
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};
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return res.json(file);
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},
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);
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router.get(
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"/:channel_id/:id/:filename",
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async (req: Request, res: Response) => {
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const { channel_id, id, filename } = req.params;
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// const { format } = req.query;
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const path = `attachments/${channel_id}/${id}/${filename}`;
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const file = await storage.get(path);
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if (!file) throw new HTTPError("File not found");
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const type = await FileType.fromBuffer(file);
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let content_type = type?.mime || "application/octet-stream";
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if (SANITIZED_CONTENT_TYPE.includes(content_type)) {
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content_type = "application/octet-stream";
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}
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res.set("Content-Type", content_type);
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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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);
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router.delete(
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"/:channel_id/:id/:filename",
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async (req: Request, res: Response) => {
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if (req.headers.signature !== Config.get().security.requestSignature)
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throw new HTTPError("Invalid request signature");
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const { channel_id, id, filename } = req.params;
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const path = `attachments/${channel_id}/${id}/${filename}`;
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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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);
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export default router;
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