Hide DoH client http header "User-Agent", fix #446 (#518)

0xERR0R · May 17, 2022 · 4690ed8 · 4690ed8
1 parent 688dae8
commit 4690ed8
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/resolver/upstream_resolver.go b/resolver/upstream_resolver.go
@@ -119,7 +119,15 @@ func (r *httpUpstreamClient) callExternal(msg *dns.Msg,
 		return nil, 0, fmt.Errorf("can't pack message: %w", err)
 	}
 
-	httpResponse, err := r.client.Post(upstreamURL, dnsContentType, bytes.NewReader(rawDNSMessage))
+	req, err := http.NewRequest("POST", upstreamURL, bytes.NewReader(rawDNSMessage))
+
+	if err != nil {
+		return nil, 0, fmt.Errorf("can't create the new request %w", err)
+	}
+
+	req.Header.Set("User-Agent", "")
+	req.Header.Set("Content-Type", dnsContentType)
+	httpResponse, err := r.client.Do(req)
 
 	if err != nil {
 		return nil, 0, fmt.Errorf("can't perform https request: %w", err)