wehub-resource-sync
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93 lines
2.9 KiB
Python
93 lines
2.9 KiB
Python
"""Before running, specify running MCP RS server URL.
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To spin up RS server locally, see
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examples/servers/simple-auth/README.md
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cd to the `examples/snippets` directory and run:
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uv run oauth-client
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"""
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import asyncio
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from urllib.parse import parse_qs, urlparse
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import httpx
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from pydantic import AnyUrl
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from mcp import ClientSession
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from mcp.client.auth import AuthorizationCodeResult, OAuthClientProvider, TokenStorage
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from mcp.client.streamable_http import streamable_http_client
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from mcp.shared.auth import OAuthClientInformationFull, OAuthClientMetadata, OAuthToken
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class InMemoryTokenStorage(TokenStorage):
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"""Demo In-memory token storage implementation."""
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def __init__(self):
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self.tokens: OAuthToken | None = None
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self.client_info: OAuthClientInformationFull | None = None
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async def get_tokens(self) -> OAuthToken | None:
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"""Get stored tokens."""
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return self.tokens
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async def set_tokens(self, tokens: OAuthToken) -> None:
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"""Store tokens."""
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self.tokens = tokens
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async def get_client_info(self) -> OAuthClientInformationFull | None:
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"""Get stored client information."""
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return self.client_info
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async def set_client_info(self, client_info: OAuthClientInformationFull) -> None:
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"""Store client information."""
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self.client_info = client_info
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async def handle_redirect(auth_url: str) -> None:
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print(f"Visit: {auth_url}")
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async def handle_callback() -> AuthorizationCodeResult:
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callback_url = input("Paste callback URL: ")
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params = parse_qs(urlparse(callback_url).query)
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return AuthorizationCodeResult(
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code=params["code"][0],
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state=params.get("state", [None])[0],
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iss=params.get("iss", [None])[0],
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)
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async def main():
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"""Run the OAuth client example."""
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oauth_auth = OAuthClientProvider(
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server_url="http://localhost:8001",
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client_metadata=OAuthClientMetadata(
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client_name="Example MCP Client",
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redirect_uris=[AnyUrl("http://localhost:3000/callback")],
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grant_types=["authorization_code", "refresh_token"],
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response_types=["code"],
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scope="user",
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),
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storage=InMemoryTokenStorage(),
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redirect_handler=handle_redirect,
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callback_handler=handle_callback,
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)
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async with httpx.AsyncClient(auth=oauth_auth, follow_redirects=True) as custom_client:
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async with streamable_http_client("http://localhost:8001/mcp", http_client=custom_client) as (read, write):
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async with ClientSession(read, write) as session:
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await session.initialize()
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tools = await session.list_tools()
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print(f"Available tools: {[tool.name for tool in tools.tools]}")
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resources = await session.list_resources()
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print(f"Available resources: {[r.uri for r in resources.resources]}")
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def run():
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asyncio.run(main())
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if __name__ == "__main__":
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run()
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