Let the config allow packages, optionally by version

core/src/policies/mod.rs

@@ -72,9 +72,6 @@ pub async fn screen(url: &str, firewall: &Firewall) -> Option<String> {
         Some((_, Verdict::Deny(reason))) => {
             Some(format!("{} {reason}", pkg.label()))
         }
-        Some((filter, Verdict::Unknown(e))) if !firewall.config.fail_open => {
-            Some(format!("{} could not be checked by {filter} ({e})", pkg.label()))
-        }
         _ => None,
     }
 }

core/tests/config.rs

@@ -1,6 +1,6 @@
 use firewall::config::path;
 use firewall::policies::filters::consult;
-use firewall::policies::{screen, Package};
+use firewall::policies::Package;
 use firewall::{Firewall, FirewallConfig};
 
 #[test]
@@ -32,12 +32,3 @@ async fn an_allowed_version_skips_the_filters() {
     assert!(consult(&firewall, registry, &pkg("0.20.0")).await.is_none());
     assert!(consult(&firewall, registry, &pkg("0.21.0")).await.is_some());
 }
-
-#[tokio::test]
-async fn failing_closed_blocks_what_could_not_be_checked() {
-    let config = r#"{"fail_open": false, "denylist": {"base": "http://127.0.0.1:1"}}"#;
-    let firewall = Firewall::new(serde_json::from_str(config).expect("parses"));
-    let url = "https://registry.npmjs.org/left-pad/-/left-pad-1.3.0.tgz";
-    let blocked = screen(url, &firewall).await.unwrap_or_default();
-    assert!(blocked.contains("could not be checked"), "{blocked:?}");
-}