Add support for EXTERNAL auth without uid

Bluetooth-Devices · Jan 4, 2023 · e3f1bd9 · e3f1bd9
1 parent 4c9a8fe
commit e3f1bd9
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Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/src/dbus_fast/auth.py b/src/dbus_fast/auth.py
@@ -68,6 +68,8 @@ def __init__(self, uid: int = None) -> None:
     def _authentication_start(self, negotiate_unix_fd: bool = False) -> str:
         self.negotiate_unix_fd = negotiate_unix_fd
         uid = self.uid
+        if uid == -1:
+            return "AUTH EXTERNAL"
         if uid is None:
             uid = os.getuid()
         hex_uid = str(uid).encode().hex()
@@ -86,6 +88,9 @@ def _receive_line(self, line: str) -> str:
         if response is _AuthResponse.AGREE_UNIX_FD:
             return "BEGIN"
 
+        if response is _AuthResponse.DATA and self.uid == -1:
+            return _AuthResponse.DATA
+
         raise AuthError(f"authentication failed: {response.value}: {args}")
 
 

diff --git a/tests/test_auth.py b/tests/test_auth.py
@@ -9,3 +9,8 @@
 def test_uid_is_set():
     auth = AuthExternal(uid=999)
     assert auth._authentication_start() == "AUTH EXTERNAL 393939"
+
+
+def test_no_uid():
+    auth = AuthExternal(uid=-1)
+    assert auth._authentication_start() == "AUTH EXTERNAL"