Improve checking callsign validity by regex, and fix passing v1 type credentials into v2 APIs

core/call_lookup_helper.py

@@ -1,3 +1,4 @@
+from core.constants import CALL_ONLY_PATTERN
 from core.data_providers import DATA_PROVIDERS
 from data.callsign import Callsign
 
@@ -9,7 +10,8 @@ def get_call_info(callsign, lookup_credentials):
 
     callsign_data = Callsign(call=callsign)
 
-    if callsign:
+    # First check our input looks like a real callsign
+    if callsign and CALL_ONLY_PATTERN.match(callsign):
         # Sort callsign providers by priority order, so we query the highest priority (lowest numbers) first, and only
         # query other providers for data we are missing as we go along.
         for p in sorted(DATA_PROVIDERS.callsign_data_providers, key=lambda p2: p2.priority):