test fix import ndpi

backend/src/utilities/ndpi_classifier.py

@@ -8,6 +8,7 @@ This module keeps nDPI integration optional:
 from __future__ import annotations
 
 import logging
+import importlib
 import time
 from dataclasses import dataclass
 from typing import Any, Dict, Optional, Tuple
@@ -16,10 +17,14 @@ from scapy.all import IP, IPv6, TCP, UDP  # type: ignore
 
 logger = logging.getLogger("ndpi_classifier")
 
-try:
-    import ndpi  # type: ignore
-except Exception:  # pragma: no cover - optional dependency
-    ndpi = None
+ndpi = None  # type: ignore
+_ndpi_import_error: Optional[str] = None
+for _module_name in ("ndpi", "pyndpi"):
+    try:  # pragma: no cover - import depends on host runtime
+        ndpi = importlib.import_module(_module_name)  # type: ignore
+        break
+    except Exception as exc:
+        _ndpi_import_error = f"{_module_name}: {exc!r}"
 
 
 def _is_jsonable_scalar(value: Any) -> bool:
@@ -63,13 +68,21 @@ class NDPIClassifier:
         self._initialized = True
 
         if ndpi is None:
-            logger.warning("nDPI Python bindings not installed; DPI enrichment disabled")
+            logger.warning(
+                "nDPI Python bindings unavailable; DPI enrichment disabled (%s)",
+                _ndpi_import_error or "no ndpi module found",
+            )
             return
 
         try:
             engine_cls = getattr(ndpi, "NDPI", None)
             if engine_cls is None:
-                logger.warning("nDPI bindings found but NDPI class missing; DPI enrichment disabled")
+                exported = [name for name in dir(ndpi) if name.lower().startswith("ndpi")]
+                logger.warning(
+                    "nDPI bindings imported but NDPI class missing (module=%s, ndpi* exports=%s); DPI enrichment disabled",
+                    getattr(ndpi, "__name__", "unknown"),
+                    exported[:20],
+                )
                 return
             self._engine = engine_cls()
             logger.info("nDPI classifier initialized")