Create Leaderboard.py

Leaderboard.py

@@ -0,0 +1,38 @@
+"""Leaderboard — persiste ataques detectados em JSON local"""
+
+import json
+import os
+from datetime import datetime
+
+LEADERBOARD_FILE = "leaderboard.json"
+
+
+def load_leaderboard() -> list:
+    if not os.path.exists(LEADERBOARD_FILE):
+        return []
+    try:
+        with open(LEADERBOARD_FILE, "r") as f:
+            return json.load(f)
+    except Exception:
+        return []
+
+
+def save_attack(result) -> None:
+    data = load_leaderboard()
+    data.append({
+        "timestamp": datetime.utcnow().isoformat(),
+        "threat_level": result.threat_level.value,
+        "risk_score": result.risk_score,
+        "threats": result.threats_found,
+        "blocked_reason": result.blocked_reason or "",
+        "trace_id": result.trace_id,
+        "chars": result.char_count_original,
+        "processing_ms": result.processing_ms,
+    })
+    # manter apenas os últimos 500 registros
+    data = data[-500:]
+    try:
+        with open(LEADERBOARD_FILE, "w") as f:
+            json.dump(data, f)
+    except Exception:
+        pass