v0.29.0

src/cache/policy/request.rs

@@ -92,6 +92,31 @@ fn pragma_no_cache(headers: &HeaderMap) -> bool {
                 .any(|token| token.trim().eq_ignore_ascii_case("no-cache"))
         })
 }
+pub fn forced_request_policy(
+    method: &Method,
+    headers: &HeaderMap,
+    empty_body: bool,
+) -> RequestPolicy {
+    if method != Method::GET && method != Method::HEAD {
+        return RequestPolicy::Bypass("request_method");
+    }
+    if !empty_body {
+        return RequestPolicy::Bypass("request_body");
+    }
+    if matches!(request_range(method, headers), RangeSelection::Unsupported) {
+        return RequestPolicy::Bypass("request_range_unsupported");
+    }
+    if headers.contains_key("if-range") && !headers.contains_key("range") {
+        return RequestPolicy::Bypass("request_precondition");
+    }
+    for key in ["if-match", "if-unmodified-since", "upgrade"] {
+        if headers.contains_key(key) {
+            return RequestPolicy::Bypass(if key == "upgrade" { "request_upgrade" } else { "request_precondition" });
+        }
+    }
+    RequestPolicy::Use
+}
+
 pub fn request_policy(
     method: &Method,
     headers: &HeaderMap,