move oauth utils to ovos-utils and deprecate backend-client (#299)

ovos_utils/oauth.py

@@ -0,0 +1,70 @@
+from json_database import JsonStorageXDG
+from ovos_config.locations import get_xdg_cache_save_path
+
+
+class OAuthTokenDatabase(JsonStorageXDG):
+    """ This helper class creates ovos-config-assistant/ovos-backend-manager compatible json databases
+        This allows users to use oauth even when not using a backend"""
+
+    def __init__(self):
+        super().__init__("ovos_oauth", xdg_folder=get_xdg_cache_save_path())
+
+    def add_token(self, token_id, token_data):
+        self[token_id] = token_data
+
+    def update_token(self, token_id, token_data):
+        self.add_token(token_id, token_data)
+
+    def get_token(self, token_id):
+        return self.get(token_id)
+
+    def delete_token(self, token_id):
+        if token_id in self:
+            self.pop(token_id)
+            return True
+        return False
+
+    def total_tokens(self):
+        return len(self)
+
+
+class OAuthApplicationDatabase(JsonStorageXDG):
+    """ This helper class creates ovos-config-assistant/ovos-backend-manager compatible json databases
+        This allows users to use oauth even when not using a backend"""
+
+    def __init__(self):
+        super().__init__("ovos_oauth_apps", xdg_folder=get_xdg_cache_save_path())
+
+    def add_application(self, oauth_service,
+                        client_id, client_secret,
+                        auth_endpoint, token_endpoint, callback_endpoint, scope,
+                        shell_integration=True):
+        self[oauth_service] = {"oauth_service": oauth_service,
+                               "client_id": client_id,
+                               "client_secret": client_secret,
+                               "auth_endpoint": auth_endpoint,
+                               "token_endpoint": token_endpoint,
+                               "callback_endpoint": callback_endpoint,
+                               "scope": scope,
+                               "shell_integration": shell_integration}
+
+    def get_application(self, oauth_service):
+        return self.get(oauth_service)
+
+    def update_application(self, oauth_service,
+                           client_id, client_secret,
+                           auth_endpoint, token_endpoint,
+                           callback_endpoint, scope, shell_integration=True):
+        self.add_application(oauth_service,
+                             client_id, client_secret,
+                             auth_endpoint, token_endpoint,
+                             callback_endpoint, scope, shell_integration)
+
+    def delete_application(self, oauth_service):
+        if oauth_service in self:
+            self.pop(oauth_service)
+            return True
+        return False
+
+    def total_apps(self):
+        return len(self)