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-rw-r--r--cdn/src/routes/avatars.ts72
1 files changed, 72 insertions, 0 deletions
diff --git a/cdn/src/routes/avatars.ts b/cdn/src/routes/avatars.ts
new file mode 100644

index 00000000..60befe2c --- /dev/null +++ b/cdn/src/routes/avatars.ts
@@ -0,0 +1,72 @@ +import { Router, Response, Request } from "express"; +import { Config, Snowflake } from "@fosscord/server-util"; +import { storage } from "../util/Storage"; +import FileType from "file-type"; +import { HTTPError } from "lambert-server"; +import { multer } from "../util/multer"; +import crypto from "crypto"; + +// 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("/: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, mimetype, size, originalname, fieldname } = req.file; + const { user_id } = req.params; + + var 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_${hash}`; // animated icons have a_ infront of the hash + + const path = `avatars/${user_id}/${hash}`; + const endpoint = Config.get().cdn.endpoint || "http://localhost:3003"; + + await storage.set(path, buffer); + + return res.json({ + id: hash, + content_type: type.mime, + size, + url: `${endpoint}${req.baseUrl}/${user_id}/${hash}`, + }); +}); + +router.get("/:user_id/:hash", async (req: Request, res: Response) => { + var { user_id, hash } = req.params; + hash = hash.split(".")[0]; // remove .file extension + const path = `avatars/${user_id}/${hash}`; + + const file = await storage.get(path); + if (!file) throw new HTTPError("not found", 404); + const type = await FileType.fromBuffer(file); + + res.set("Content-Type", type?.mime); + res.set("Cache-Control", "public, max-age=31536000"); + + return res.send(file); +}); + +router.delete("/:user_id/:id", async (req: Request, res: Response) => { + if (req.headers.signature !== Config.get().security.requestSignature) + throw new HTTPError("Invalid request signature"); + const { user_id, id } = req.params; + const path = `avatars/${user_id}/${id}`; + + await storage.delete(path); + + return res.send({ success: true }); +}); + +export default router;