Update asgi_app.py

This commit is contained in:
saidsurucu
2025-07-21 17:51:29 +03:00
parent ebefe22a4c
commit 515347e29c
+46 -134
View File
@@ -19,6 +19,7 @@ from fastapi.exception_handlers import http_exception_handler
from starlette.middleware import Middleware
from starlette.middleware.cors import CORSMiddleware
from starlette.responses import Response
from starlette.requests import Request as StarletteRequest
# Import the fully configured MCP app with all tools
from mcp_server_main import app as mcp_server
@@ -36,22 +37,60 @@ BASE_URL = os.getenv("BASE_URL", "https://yargimcp.com")
# Setup logging
logger = logging.getLogger(__name__)
# Configure CORS middleware
# Configure CORS and Auth middleware
cors_origins = os.getenv("ALLOWED_ORIGINS", "*").split(",")
# Custom JWT authentication middleware for MCP endpoints
class JWTAuthMiddleware:
def __init__(self, app):
self.app = app
async def __call__(self, scope, receive, send):
if scope["type"] == "http" and scope["path"].startswith("/mcp"):
# Only apply auth to MCP endpoints
request = StarletteRequest(scope, receive)
auth_header = request.headers.get("authorization")
if not auth_header or not auth_header.startswith("Bearer "):
# Return 401 for missing auth
response = JSONResponse(
status_code=401,
content={"detail": "Missing or invalid Authorization header. Bearer token required."}
)
await response(scope, receive, send)
return
# Add user info to scope for downstream processing
token = auth_header.split(" ")[1]
if token.startswith("eyJ"):
import jwt
try:
decoded = jwt.decode(token, options={"verify_signature": False})
scope["user"] = {
"user_id": decoded.get("user_id") or decoded.get("sub"),
"email": decoded.get("email"),
"scopes": decoded.get("scopes", ["read", "search"])
}
except:
pass
await self.app(scope, receive, send)
custom_middleware = [
Middleware(
CORSMiddleware,
allow_origins=cors_origins,
allow_credentials=True,
allow_methods=["GET", "POST", "OPTIONS"],
allow_methods=["GET", "POST", "OPTIONS", "DELETE"],
allow_headers=["Content-Type", "Authorization", "X-Request-ID"],
),
Middleware(JWTAuthMiddleware),
]
# Create MCP Starlette sub-application (without auth wrapper)
# Create MCP Starlette sub-application with proper middleware
mcp_app = mcp_server.http_app(
path="/",
middleware=custom_middleware
path="/mcp",
custom_middleware=custom_middleware
)
# Configure JSON encoder for proper Turkish character support
@@ -107,135 +146,8 @@ async def custom_401_handler(request: Request, exc: HTTPException):
return response
# Mount MCP app as sub-application at /mcp-server to avoid path conflicts
app.mount("/mcp-server", mcp_app)
# Add custom route to handle /mcp requests and forward to mounted app
@app.api_route("/mcp", methods=["POST", "DELETE", "OPTIONS"])
@app.api_route("/mcp/", methods=["POST", "DELETE", "OPTIONS"])
async def mcp_protocol_handler(request: Request):
"""Handle MCP protocol requests by forwarding to mounted app"""
# Handle DELETE requests for session termination
if request.method == "DELETE":
logger.info("DELETE request received for session termination")
# For session termination, we just return 200 OK
# The actual session cleanup is handled by the underlying MCP transport
from starlette.responses import Response
return Response(
status_code=200,
content="Session terminated successfully"
)
# REQUIRED: Validate Bearer JWT tokens for all MCP requests
auth_header = request.headers.get("Authorization")
if not auth_header or not auth_header.startswith("Bearer "):
logger.error("Missing or invalid Authorization header")
raise HTTPException(
status_code=401,
detail="Missing or invalid Authorization header. Bearer token required."
)
token = auth_header.split(" ")[1]
try:
# Check if this is a mock token for development/testing
if token.startswith("mock_clerk_jwt_"):
logger.info(f"Using mock JWT token for development: {token[:30]}...")
# For mock tokens, we'll allow access with a mock user
request.state.user_id = "mock_user_dev"
request.state.session_id = "mock_session_dev"
request.state.token_scopes = ["read", "search"]
logger.info("Mock JWT token accepted for development")
elif token.startswith("eyJ"):
# This looks like a real JWT token (starts with eyJ which is base64 encoded '{"')
logger.info(f"Processing real JWT token: {token[:30]}...")
# Validate real Clerk JWT token
from clerk_backend_api import Clerk, models
import jwt
# Decode JWT token and extract user info
try:
decoded_token = jwt.decode(token, options={"verify_signature": False})
user_id = decoded_token.get("user_id") or decoded_token.get("sub")
user_email = decoded_token.get("email")
token_scopes = decoded_token.get("scopes", ["read", "search"])
session_id = decoded_token.get("sid", "jwt_session")
logger.info(f"JWT token claims - user_id: {user_id}, email: {user_email}, scopes: {token_scopes}")
if user_id and user_email:
# JWT token is signed by Clerk and contains valid user info
request.state.user_id = user_id
request.state.user_email = user_email
request.state.session_id = session_id
request.state.token_scopes = token_scopes
logger.info(f"Real JWT token accepted for user: {user_id}")
else:
logger.error(f"Missing required fields in JWT token - user_id: {bool(user_id)}, email: {bool(user_email)}")
raise HTTPException(
status_code=401,
detail="Invalid token - missing user_id or email in claims"
)
except Exception as e:
logger.error(f"JWT token decoding failed: {e}")
raise HTTPException(
status_code=401,
detail="Invalid JWT token format"
)
else:
# Invalid token format - doesn't start with expected patterns
logger.error(f"Invalid token format: {token[:30]}...")
raise HTTPException(
status_code=401,
detail="Invalid token format - must be a valid JWT token"
)
except HTTPException:
# Re-raise HTTPException as-is
raise
except Exception as e:
logger.error(f"Bearer token validation failed: {str(e)}")
raise HTTPException(
status_code=401,
detail=f"Token validation failed: {str(e)}"
)
# Forward the request to the mounted MCP app
async def receive():
return await request.receive()
# Create new scope for the mounted app
scope = request.scope.copy()
scope["path"] = "/" # Root path for mounted app
scope["path_info"] = "/"
# Capture the response
response_parts = {"status": 200, "headers": [], "body": b""}
async def send(message):
if message["type"] == "http.response.start":
response_parts["status"] = message["status"]
response_parts["headers"] = message["headers"]
elif message["type"] == "http.response.body":
response_parts["body"] += message.get("body", b"")
# Call the mounted MCP app
await mcp_app(scope, receive, send)
# Return the response
from starlette.responses import Response
# Convert ASGI headers to dict
headers = {}
for name, value in response_parts["headers"]:
headers[name.decode()] = value.decode()
return Response(
content=response_parts["body"],
status_code=response_parts["status"],
headers=headers
)
# Mount MCP app directly at /mcp path
app.mount("/mcp", mcp_app)
# SSE transport deprecated - removed