1 files changed, 36 insertions, 0 deletions
diff --git a/api/image-proxy.ts b/api/image-proxy.ts
new file mode 100644
index 0000000..79c7d6e
--- /dev/null
+++ b/api/image-proxy.ts
@@ -0,0 +1,36 @@
+import { NowRequest, NowResponse } from "@now/node";
+import fetch from "node-fetch";
+
+export default async (request: NowRequest, response: NowResponse) => {
+  const { url } = request.query;
+  const imageURL = Array.isArray(url) ? url[0] : url;
+  if (!imageURL) {
+    return response.status(400).send("Error: No url from param");
+  }
+
+  try {
+    new URL(imageURL);
+  } catch (e) {
+    return response.status(400).send("Error: Invalid URL string");
+  }
+
+  const res = await fetch(imageURL, {
+    headers: {
+      "User-Agent": request.headers["user-agent"],
+      Referer: new URL(imageURL).origin,
+    },
+    redirect: "follow",
+  });
+
+  if (res.status >= 400) {
+    return response.status(res.status).send(await res.text());
+  }
+
+  if (res.headers.get("Content-Type").split("/")[0].toLowerCase() !== "image") {
+    return response.status(400).send("Error: Content-Type is not image");
+  }
+
+  response.setHeader("Content-Type", res.headers.get("Content-Type"));
+
+  return response.status(200).send(await res.buffer());
+};