Fix keep challenge

example-config.yaml

@@ -36,6 +36,6 @@ policy-groups:
   - name: robots.txt
     first-line: "^GET /robots.txt "
     action: allow
-  - name: Favicon
-    first-line: "^GET /favicon.ico "
-    action: allow
+  - name: Test
+    first-line: "^GET /test/[a-z]+/"
+    action: challenge

src/main.rs

@@ -143,10 +143,9 @@ async fn main() {
 						}
 					}
 
-					let mut allow = false;
 					let mut valid_challenge = false;
-
-					if let (Some(req_challenge), Some(req_proof)) = (req_challenge, req_proof) {
+					let mut allow = false;
+					if let Some(req_challenge) = req_challenge {
 						valid_challenge = challenge::verify_challenge_cookie(
 							req_challenge,
 							&secret,
@@ -154,8 +153,15 @@ async fn main() {
 							req_ip,
 							config.challenge_timeout,
 						);
-						allow = valid_challenge
-							&& challenge::check_challenge(req_challenge, req_proof, TARGET_ZEROS);
+
+						if let Some(req_proof) = req_proof {
+							allow = valid_challenge
+								&& challenge::check_challenge(
+									req_challenge,
+									req_proof,
+									TARGET_ZEROS,
+								);
+						}
 					}
 
 					if allow {