Added subsonic server config for salt auth logic

Allows users to toggle between the plain password auth and the salted
auth. Salted auth is turned off by default since its only supported
after Subsonic API 1.13.0

tests/adapter_tests/adapter_manager_tests.py

@@ -16,6 +16,7 @@ def adapter_manager(tmp_path: Path):
         server_address="https://subsonic.example.com",
         username="test",
         verify_cert=True,
+        salt_auth=False,
     )
     subsonic_config_store.set_secret("password", "testpass")
 

tests/adapter_tests/subsonic_adapter_tests.py

@@ -24,11 +24,31 @@ def adapter(tmp_path: Path):
         server_address="https://subsonic.example.com",
         username="test",
         verify_cert=True,
+        salt_auth=False,
     )
     config.set_secret("password", "testpass")
 
     adapter = SubsonicAdapter(config, tmp_path)
     adapter._is_mock = True
+
+    yield adapter
+    adapter.shutdown()
+
+
+@pytest.fixture
+def salt_auth_adapter(tmp_path: Path):
+    ConfigurationStore.MOCK = True
+    config = ConfigurationStore(
+        server_address="https://subsonic.example.com",
+        username="test",
+        verify_cert=True,
+        salt_auth=True,
+    )
+    config.set_secret("password", "testpass")
+
+    adapter = SubsonicAdapter(config, tmp_path)
+    adapter._is_mock = True
+
     yield adapter
     adapter.shutdown()
 
@@ -82,7 +102,7 @@ def test_config_form():
     SubsonicAdapter.get_configuration_form(config_store)
 
 
-def test_request_making_methods(adapter: SubsonicAdapter):
+def test_plain_auth_logic(adapter: SubsonicAdapter):
     expected = {
         "u": "test",
         "p": "testpass",
@@ -92,6 +112,23 @@ def test_request_making_methods(adapter: SubsonicAdapter):
     }
     assert sorted(expected.items()) == sorted(adapter._get_params().items())
 
+
+def test_salt_auth_logic(salt_auth_adapter: SubsonicAdapter):
+    expected = {
+        "u": "test",
+        "c": "Sublime Music",
+        "f": "json",
+        "v": "1.15.0",
+    }
+
+    params = salt_auth_adapter._get_params()
+    assert "p" not in params
+    assert "s" in params
+    assert "t" in params
+    assert all(key in params and params[key] == expected[key] for key in expected)
+
+
+def test_make_url(adapter: SubsonicAdapter):
     assert adapter._make_url("foo") == "https://subsonic.example.com/rest/foo.view"