1 files changed, 58 insertions, 0 deletions
diff --git a/src/cdn/routes/external.ts b/src/cdn/routes/external.ts
new file mode 100644
index 00000000..c9441fc2
--- /dev/null
+++ b/src/cdn/routes/external.ts
@@ -0,0 +1,58 @@
+import { Router, Response, Request } from "express";
+import fetch from "node-fetch";
+import { HTTPError } from "@fosscord/util";
+import { Snowflake, Config } from "@fosscord/util";
+import { storage } from "../util/Storage";
+import FileType from "file-type";
+
+// TODO: somehow handle the deletion of images posted to the /external route
+
+const router = Router();
+const DEFAULT_FETCH_OPTIONS: any = {
+	redirect: "follow",
+	follow: 1,
+	headers: {
+		"user-agent":
+			"Mozilla/5.0 (compatible Fosscordbot/0.1; +https://fosscord.com)",
+	},
+	size: 1024 * 1024 * 8,
+	compress: true,
+	method: "GET",
+};
+
+router.post("/", async (req: Request, res: Response) => {
+	if (req.headers.signature !== Config.get().security.requestSignature)
+		throw new HTTPError("Invalid request signature");
+
+	if (!req.body) throw new HTTPError("Invalid Body");
+
+	const { url } = req.body;
+	if (!url || typeof url !== "string") throw new HTTPError("Invalid url");
+
+	const id = Snowflake.generate();
+
+	try {
+		const response = await fetch(url, DEFAULT_FETCH_OPTIONS);
+		const buffer = await response.buffer();
+
+		await storage.set(`/external/${id}`, buffer);
+
+		res.send({ id });
+	} catch (error) {
+		throw new HTTPError("Couldn't fetch website");
+	}
+});
+
+router.get("/:id", async (req: Request, res: Response) => {
+	const { id } = req.params;
+
+	const file = await storage.get(`/external/${id}`);
+	if (!file) throw new HTTPError("File not found");
+	const result = await FileType.fromBuffer(file);
+
+	res.set("Content-Type", result?.mime);
+
+	return res.send(file);
+});
+
+export default router;