101 lines
2.9 KiB
Python
101 lines
2.9 KiB
Python
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import json
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import os
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import queue
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import threading
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from datetime import date
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from garminconnect import Garmin, GarminConnectAuthenticationError
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from mcp.server.fastmcp import FastMCP
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mcp = FastMCP("garmin")
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_client: Garmin | None = None
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_auth_state: str = "unauthenticated"
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_mfa_input_queue: queue.Queue = queue.Queue()
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_login_result_queue: queue.Queue = queue.Queue()
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def _today() -> str:
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return date.today().isoformat()
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def _check_auth() -> str | None:
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if _auth_state != "authenticated":
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return "Not authenticated. Ask Claude to call authenticate() first."
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return None
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def _prompt_mfa() -> str:
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return _mfa_input_queue.get(timeout=300)
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def _startup_login() -> None:
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global _client, _auth_state
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email = os.environ.get("GARMIN_EMAIL")
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password = os.environ.get("GARMIN_PASSWORD")
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if not email or not password:
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raise SystemExit(
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"GARMIN_EMAIL and GARMIN_PASSWORD environment variables are required."
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)
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try:
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_client = Garmin(email, password)
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_client.login()
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_auth_state = "authenticated"
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except Exception:
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_auth_state = "unauthenticated"
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@mcp.tool()
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def authenticate() -> str:
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"""Initiate Garmin authentication using credentials from environment variables."""
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global _client, _auth_state
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def _do_login() -> None:
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try:
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_client.login()
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_login_result_queue.put(("success", None))
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except Exception as exc:
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_login_result_queue.put(("error", str(exc)))
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_client = Garmin(os.environ.get("GARMIN_EMAIL", ""), os.environ.get("GARMIN_PASSWORD", ""))
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_client.prompt_mfa = _prompt_mfa
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threading.Thread(target=_do_login, daemon=True).start()
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try:
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status, err = _login_result_queue.get(timeout=10)
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if status == "success":
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_auth_state = "authenticated"
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return "Authenticated successfully."
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return f"Authentication failed: {err}"
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except queue.Empty:
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_auth_state = "mfa_pending"
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return (
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"MFA required. Garmin has sent a verification code to your registered "
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"email or phone. Call complete_mfa(code) with the code you received."
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)
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@mcp.tool()
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def complete_mfa(code: str) -> str:
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"""Provide the MFA verification code to complete Garmin authentication."""
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global _auth_state
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if _auth_state != "mfa_pending":
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return "No MFA in progress. Call authenticate() first."
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_mfa_input_queue.put(code)
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try:
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status, err = _login_result_queue.get(timeout=30)
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if status == "success":
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_auth_state = "authenticated"
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return "MFA accepted. Authenticated successfully."
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return f"Authentication failed after MFA: {err}"
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except queue.Empty:
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return "Timed out waiting for authentication to complete."
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if __name__ == "__main__":
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_startup_login()
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mcp.run()
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