diff --git a/src/cdn/routes/attachments.ts b/src/cdn/routes/attachments.ts
new file mode 100644
index 00000000..723a6c03
--- /dev/null
+++ b/src/cdn/routes/attachments.ts
@@ -0,0 +1,100 @@
+import { Router, Response, Request } from "express";
+import { Config, Snowflake } from "@fosscord/util";
+import { storage } from "../util/Storage";
+import FileType from "file-type";
+import { HTTPError } from "@fosscord/util";
+import { multer } from "../util/multer";
+import imageSize from "image-size";
+
+const router = Router();
+
+const SANITIZED_CONTENT_TYPE = [
+ "text/html",
+ "text/mhtml",
+ "multipart/related",
+ "application/xhtml+xml",
+];
+
+router.post(
+ "/:channel_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("file missing");
+
+ const { buffer, mimetype, size, originalname, fieldname } = req.file;
+ const { channel_id } = req.params;
+ const filename = originalname
+ .replaceAll(" ", "_")
+ .replace(/[^a-zA-Z0-9._]+/g, "");
+ const id = Snowflake.generate();
+ const path = `attachments/${channel_id}/${id}/${filename}`;
+
+ const endpoint =
+ Config.get()?.cdn.endpointPublic || "http://localhost:3003";
+
+ await storage.set(path, buffer);
+ let width;
+ let height;
+ if (mimetype.includes("image")) {
+ const dimensions = imageSize(buffer);
+ if (dimensions) {
+ width = dimensions.width;
+ height = dimensions.height;
+ }
+ }
+
+ const file = {
+ id,
+ content_type: mimetype,
+ filename: filename,
+ size,
+ url: `${endpoint}/${path}`,
+ width,
+ height,
+ };
+
+ return res.json(file);
+ }
+);
+
+router.get(
+ "/:channel_id/:id/:filename",
+ async (req: Request, res: Response) => {
+ const { channel_id, id, filename } = req.params;
+
+ const file = await storage.get(
+ `attachments/${channel_id}/${id}/${filename}`
+ );
+ if (!file) throw new HTTPError("File not found");
+ const type = await FileType.fromBuffer(file);
+ let content_type = type?.mime || "application/octet-stream";
+
+ if (SANITIZED_CONTENT_TYPE.includes(content_type)) {
+ content_type = "application/octet-stream";
+ }
+
+ res.set("Content-Type", content_type);
+ res.set("Cache-Control", "public, max-age=31536000");
+
+ return res.send(file);
+ }
+);
+
+router.delete(
+ "/:channel_id/:id/:filename",
+ async (req: Request, res: Response) => {
+ if (req.headers.signature !== Config.get().security.requestSignature)
+ throw new HTTPError("Invalid request signature");
+
+ const { channel_id, id, filename } = req.params;
+ const path = `attachments/${channel_id}/${id}/${filename}`;
+
+ await storage.delete(path);
+
+ return res.send({ success: true });
+ }
+);
+
+export default router;
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