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authorRory& <root@rory.gay>2025-12-19 04:26:25 +0100
committerRory& <root@rory.gay>2025-12-19 04:26:25 +0100
commit52a82b6dbac0cb546b1c6510949f96ecd0b100af (patch)
tree6b585a73b7ae7e1dc8764d077da58f306e129de9 /src/cdn/util/basicCrdFileRouter.ts
parentDrop blockProxies from config - fixup for #1444 / b54e86d (diff)
downloadserver-ts-52a82b6dbac0cb546b1c6510949f96ecd0b100af.tar.xz
WIP CDN stuff
Diffstat (limited to 'src/cdn/util/basicCrdFileRouter.ts')
-rw-r--r--src/cdn/util/basicCrdFileRouter.ts117
1 files changed, 117 insertions, 0 deletions
diff --git a/src/cdn/util/basicCrdFileRouter.ts b/src/cdn/util/basicCrdFileRouter.ts
new file mode 100644

index 00000000..46fcf882 --- /dev/null +++ b/src/cdn/util/basicCrdFileRouter.ts
@@ -0,0 +1,117 @@ +/* + 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 { Config, Snowflake } from "@spacebar/util"; +import { storage } from "../util/Storage"; +import { fileTypeFromBuffer } from "file-type"; +import { HTTPError } from "lambert-server"; +import crypto from "crypto"; +import { multer } from "../util/multer"; + +// 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]; + +export class BasicCrdFileRouterOptions { + public pathPrefix: string; + public fallbackToAvatarPath: boolean = true; + + constructor(data: Partial<BasicCrdFileRouterOptions> = {}) { + Object.assign(this, data); + } +} + +export function createBasicCrdFileRouter(opts: BasicCrdFileRouterOptions) { + const router = Router({ mergeParams: true }); + + router.post("/:user_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 { user_id } = req.params; + + let hash = crypto.createHash("md5").update(Snowflake.generate()).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_${hash}`; // animated icons have a_ infront of the hash + + const path = `${opts.pathPrefix}/${user_id}/${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}/${user_id}/${hash}`, + }); + }); + + router.get("/:user_id", async (req: Request, res: Response) => { + let { user_id } = req.params; + user_id = user_id.split(".")[0]; // remove .file extension + const path = `${opts.pathPrefix}/${user_id}`; + + const file = await storage.get(path); + if (!file) throw new HTTPError("not found", 404); + const type = await fileTypeFromBuffer(file); + + res.set("Content-Type", type?.mime); + res.set("Cache-Control", "public, max-age=31536000"); + + return res.send(file); + }); + + const getAvatar = async (req: Request, res: Response) => { + const { user_id } = req.params; + let { hash } = req.params; + hash = hash.split(".")[0]; // remove .file extension + const path = `${opts.pathPrefix}/${user_id}/${hash}`; + + const file = await storage.get(path); + if (!file) throw new HTTPError("not found", 404); + const type = await fileTypeFromBuffer(file); + + res.set("Content-Type", type?.mime); + res.set("Cache-Control", "public, max-age=31536000"); + + return res.send(file); + }; + + router.get("/:user_id/:hash", getAvatar); + + router.delete("/:user_id/:hash", async (req: Request, res: Response) => { + if (req.headers.signature !== Config.get().security.requestSignature) throw new HTTPError("Invalid request signature"); + const { user_id, hash } = req.params; + const path = `${opts.pathPrefix}/${user_id}/${hash}`; + + await storage.delete(path); + + return res.send({ success: true }); + }); + + return router; +}