v2.5.0: compact traffic history retention

admin-web/server.py

@@ -691,9 +691,26 @@ def load_user_stats_history(name: str | None = None, limit: int | None = 240) ->
 
 def latest_user_stats() -> dict[str, dict[str, Any]]:
     latest: dict[str, dict[str, Any]] = {}
-    for row in load_user_stats_history(limit=None):
-        if row["epoch"] >= latest.get(row["user"], {}).get("epoch", 0):
-            latest[row["user"]] = row
+    if not USER_HISTORY_FILE.exists():
+        return latest
+    try:
+        with USER_HISTORY_FILE.open("r", encoding="utf-8", newline="") as fh:
+            for row in csv.DictReader(fh):
+                user = str(row.get("user") or "").strip()
+                if not USER_RE.match(user):
+                    continue
+                item = {
+                    "epoch": _int_value(row.get("epoch")),
+                    "user": user,
+                    "total_octets": _int_value(row.get("total_octets")),
+                    "current_connections": _int_value(row.get("current_connections")),
+                    "active_unique_ips": _int_value(row.get("active_unique_ips")),
+                    "recent_unique_ips": _int_value(row.get("recent_unique_ips")),
+                }
+                if item["epoch"] >= latest.get(user, {}).get("epoch", 0):
+                    latest[user] = item
+    except OSError:
+        return {}
     return latest