Fix file uploading for infractions

functions/api/infractions/new.ts

@@ -77,6 +77,12 @@ export async function onRequestPost(context: RequestContext) {
   // @ts-expect-error
   const files: File[] = body.keys().find((key) => key.match(/^files\[\d]$/));
   const urlPromises = [];
+  const origin = context.request.headers.get("Origin");
+
+  if (!origin)
+    return new Response('{"error":"Origin header missing"}', {
+      status: 400,
+    });
 
   for (const file of files) {
     if (!allowedFileTypes.includes(file.type))
@@ -97,6 +103,7 @@ export async function onRequestPost(context: RequestContext) {
         attachmentKey,
         file.size,
         (allowedFileTypes.find((t) => t === file.type) as string).split("/")[1],
+        origin,
       ),
     );
   }