Merge !1504: kresctl: timeout for http request

Author: vcunat

NEWS

@@ -1,9 +1,14 @@
 Knot Resolver 6.0.7 (2024-0m-dd)
 ================================
 
+Improvements
+------------
+- manager: clear the cache via management HTTP API (#876,!1491)
+
 Bugfixes
 --------
 - fix listening by interface name containing dashes (#900, !1500)
+- fix kresctl http request timeout (!1505)
 
 
 Knot Resolver 6.0.6 (2024-02-13)

manager/knot_resolver_manager/utils/requests.py

@@ -70,8 +70,9 @@ def request(
     )
     # req.add_header("Authorization", _authorization_header)
 
+    timeout_m = 5  # minutes
     try:
-        with urlopen(req) as response:
+        with urlopen(req, timeout=timeout_m * 60) as response:
             return Response(response.status, response.read().decode("utf8"))
     except HTTPError as err:
         return Response(err.code, err.read().decode("utf8"))
@@ -83,6 +84,15 @@ def request(
         else:
             _print_conn_error(str(err), url, socket_desc.source)
         sys.exit(1)
+    except (TimeoutError, socket.timeout):
+        _print_conn_error(
+            f"Connection timed out after {timeout_m} minutes."
+            "\nIt does not mean that the operation necessarily failed."
+            "\nSee Knot Resolver's log for more information.",
+            url,
+            socket_desc.source,
+        )
+        sys.exit(1)
 
 
 # Code heavily inspired by requests-unixsocket