관측성 리뷰 지적 사항 수정

Author: Neibce

backend/utils/json_logging.py

@@ -5,7 +5,7 @@
 from utils.observability_context import get_request_id
 
 
-SENSITIVE_FIELDS = {
+SENSITIVE_EXACT_FIELDS = {
     "authorization",
     "cookie",
     "password",
@@ -14,6 +14,17 @@
     "code",
     "src",
 }
+SENSITIVE_SUBSTRINGS = {
+    "authorization",
+    "cookie",
+    "password",
+    "token",
+    "secret",
+    "source_code",
+    "sourcecode",
+    "spj_code",
+    "src",
+}
 
 
 class CodePlaceJsonFormatter(logging.Formatter):
@@ -56,4 +67,4 @@ def _redact(self, value):
     @staticmethod
     def _is_sensitive_key(key):
         normalized = str(key).lower()
-        return any(field in normalized for field in SENSITIVE_FIELDS)
+        return normalized in SENSITIVE_EXACT_FIELDS or any(field in normalized for field in SENSITIVE_SUBSTRINGS)

backend/utils/observability_metrics.py

@@ -130,9 +130,11 @@ def _judge_server_metrics(self):
             logger.warning("Failed to collect judge-server metrics: %s", e)
             servers = []
         for server in servers:
+            if server.is_disabled:
+                continue
             hostname = server.hostname or "unknown"
             heartbeat_age = max((now - server.last_heartbeat).total_seconds(), 0)
-            available = 1 if not server.is_disabled and server.status == "normal" else 0
+            available = 1 if server.status == "normal" else 0
             available_metric.add_metric([hostname], available)
             heartbeat_metric.add_metric([hostname], heartbeat_age)
             task_metric.add_metric([hostname], server.task_number)