fix: heuristic queries left outer join instead just left

perun/proxygui/api/heuristic_api.py

@@ -81,6 +81,8 @@ class AuthEventLoggingQueries:
 
     # Basic checker if MFA was performed based on upstream_acrs value
     def upstream_acr_status(self, acr):
+        if not acr:
+            return None
         mfa_status = next((mfa for mfa in self.MFA_CONTEXTS if mfa in acr), None)
         return mfa_status is not None
 
@@ -122,11 +124,18 @@ class AuthEventLoggingQueries:
                 .join(
                     requested_table,
                     requested_table.c.id == auth_table.c.requested_acrs_id,
+                    isouter=True,
+                )
+                .join(
+                    upstream_table,
+                    upstream_table.c.id == auth_table.c.upstream_acrs_id,
+                    isouter=True,
                 )
                 .join(
-                    upstream_table, upstream_table.c.id == auth_table.c.upstream_acrs_id
+                    services_table,
+                    services_table.c.id == auth_table.c.sp_id,
+                    isouter=True,
                 )
-                .join(services_table, services_table.c.id == auth_table.c.sp_id)
                 .where(auth_table.c.user_id == user_id)
                 .distinct(auth_table.c.ip_address)
             ).alias("inner_query")
@@ -146,7 +155,6 @@ class AuthEventLoggingQueries:
                 )
                 .select_from(inner_query)
                 .order_by(inner_query.c.day.desc())
-                .limit(self.few_time_logs)
             )
 
             response = cnxn.execute(outer_query).fetchall()
@@ -175,9 +183,12 @@ class AuthEventLoggingQueries:
                 .join(
                     agents_raw_table,
                     agents_raw_table.c.id == auth_table.c.user_agent_id,
+                    isouter=True,
                 )
                 .join(
-                    upstream_table, upstream_table.c.id == auth_table.c.upstream_acrs_id
+                    upstream_table,
+                    upstream_table.c.id == auth_table.c.upstream_acrs_id,
+                    isouter=True,
                 )
                 .where(auth_table.c.user_id == user_id)
                 .order_by(auth_table.c.day.desc())