Add should_default_ccid helper

Author: sosthene-nitrokey

src/nitrokey/should_use_ccid.py

@@ -0,0 +1,21 @@
+import ctypes
+import sys
+
+
+def should_default_ccid() -> bool:
+    try:
+        import smartcard
+    except ImportError:
+        return False
+
+    if sys.platform != "win32" and sys.platform != "cygwin":
+        # Linux or MacOS don't need admin to access with CTAPHID
+        return False
+
+    try:
+        if ctypes.windll.shell32.IsUserAnAdmin():
+            return False
+        else:
+            return True
+    except Exception:
+        return False