oauth2.1 working - quick flow in mcp inspector

auth/oauth21/__init__.py

@@ -0,0 +1,92 @@
+"""
+OAuth 2.1 Authentication for MCP Server
+
+A comprehensive OAuth 2.1 implementation with Bearer token support, session management,
+and multi-user capabilities for Model Context Protocol servers.
+
+Key Features:
+- OAuth 2.1 compliant authorization flow with PKCE
+- Bearer token authentication (JWT and opaque tokens)
+- Multi-user session management with proper isolation
+- Authorization server discovery (RFC9728 & RFC8414)
+- Backward compatibility with existing authentication
+
+Usage:
+    # Basic setup
+    from auth.oauth21 import create_auth_config, AuthCompatibilityLayer
+
+    config = create_auth_config()
+    auth_layer = AuthCompatibilityLayer(config)
+
+    # Initialize
+    await auth_layer.start()
+
+    # Use with FastAPI
+    middleware = auth_layer.create_enhanced_middleware()
+    app.add_middleware(type(middleware), **middleware.__dict__)
+"""
+
+from .config import (
+    OAuth2Config,
+    AuthConfig,
+    create_auth_config,
+    create_default_oauth2_config,
+    load_config_from_file,
+    get_config_summary,
+)
+
+from .handler import OAuth2Handler
+
+from .compat import (
+    AuthCompatibilityLayer,
+    create_compatible_auth_handler,
+    get_enhanced_credentials,
+)
+
+from .middleware import (
+    AuthenticationMiddleware,
+    AuthContext,
+    get_auth_context,
+    require_auth,
+    require_scopes,
+)
+
+from .sessions import Session, SessionStore
+
+from .tokens import TokenValidator, TokenValidationError
+
+
+__version__ = "1.0.0"
+
+__all__ = [
+    # Configuration
+    "OAuth2Config",
+    "AuthConfig",
+    "create_auth_config",
+    "create_default_oauth2_config",
+    "load_config_from_file",
+    "get_config_summary",
+
+    # Main handlers
+    "OAuth2Handler",
+    "AuthCompatibilityLayer",
+    "create_compatible_auth_handler",
+
+    # Middleware and context
+    "AuthenticationMiddleware",
+    "AuthContext",
+    "get_auth_context",
+    "require_auth",
+    "require_scopes",
+
+    # Session management
+    "Session",
+    "SessionStore",
+
+    # Token handling
+    "TokenValidator",
+    "TokenValidationError",
+
+    # Enhanced credential function
+    "get_enhanced_credentials"
+]