fix(intune): restore service retry logic and tests

Reverts the accidental removal of intune_service.py retry logic and
its corresponding tests in intune_service_test.py.

prowler/providers/m365/services/intune/intune_service.py

@@ -125,6 +125,15 @@ class Intune(M365Service):
                 request_configuration=request_configuration
             )
             settings = getattr(device_management, "settings", None)
+            secure_by_default = getattr(settings, "secure_by_default", None)
+
+            # Some tenants/API responses omit nested settings when $select is used.
+            # Retry without query parameters before concluding the value is unavailable.
+            if settings is None or secure_by_default is None:
+                device_management = await self.client.device_management.get()
+                settings = getattr(device_management, "settings", None)
+                secure_by_default = getattr(settings, "secure_by_default", None)
+
             if settings is None:
                 return (
                     IntuneSettings(secure_by_default=None),
@@ -132,9 +141,7 @@ class Intune(M365Service):
                 )
 
             return (
-                IntuneSettings(
-                    secure_by_default=getattr(settings, "secure_by_default", None)
-                ),
+                IntuneSettings(secure_by_default=secure_by_default),
                 None,
             )
         except Exception as error:

tests/providers/m365/services/intune/intune_service_test.py

@@ -349,6 +349,60 @@ def test_intune_get_settings_null_settings():
     assert settings.secure_by_default is None
 
 
+def test_intune_get_settings_retries_without_select_when_settings_missing():
+    """Test _get_settings retries without $select when settings are omitted."""
+    intune = Intune.__new__(Intune)
+
+    selected_response = SimpleNamespace(settings=None)
+    full_response = SimpleNamespace(settings=SimpleNamespace(secure_by_default=True))
+
+    mock_client = mock.MagicMock()
+    mock_client.device_management.get = AsyncMock(
+        side_effect=[selected_response, full_response]
+    )
+
+    intune.client = mock_client
+
+    loop = asyncio.new_event_loop()
+    try:
+        settings, error = loop.run_until_complete(intune._get_settings())
+    finally:
+        loop.close()
+
+    assert error is None
+    assert settings is not None
+    assert settings.secure_by_default is True
+    assert mock_client.device_management.get.await_count == 2
+
+
+def test_intune_get_settings_retries_without_select_when_value_missing():
+    """Test _get_settings retries without $select when secure_by_default is omitted."""
+    intune = Intune.__new__(Intune)
+
+    selected_response = SimpleNamespace(
+        settings=SimpleNamespace(secure_by_default=None)
+    )
+    full_response = SimpleNamespace(settings=SimpleNamespace(secure_by_default=False))
+
+    mock_client = mock.MagicMock()
+    mock_client.device_management.get = AsyncMock(
+        side_effect=[selected_response, full_response]
+    )
+
+    intune.client = mock_client
+
+    loop = asyncio.new_event_loop()
+    try:
+        settings, error = loop.run_until_complete(intune._get_settings())
+    finally:
+        loop.close()
+
+    assert error is None
+    assert settings is not None
+    assert settings.secure_by_default is False
+    assert mock_client.device_management.get.await_count == 2
+
+
 def test_intune_get_settings_exception():
     """Test _get_settings handles exceptions gracefully."""
     intune = Intune.__new__(Intune)