#!/usr/bin/env python3
"""Manual OAuth authentication script for Google Calendar API.
This script doesn't require a local server - you manually copy the auth code.
"""
import json
from pathlib import Path
from google_auth_oauthlib.flow import InstalledAppFlow
SCOPES = [
'https://www.googleapis.com/auth/calendar',
'https://www.googleapis.com/auth/calendar.events'
]
def main():
credentials_dir = Path(__file__).parent / "credentials"
client_secrets = credentials_dir / "client_secrets.json"
token_file = credentials_dir / "token.json"
if not client_secrets.exists():
print(f"Error: {client_secrets} not found!")
return
flow = InstalledAppFlow.from_client_secrets_file(
str(client_secrets),
SCOPES
)
# Use OOB-style flow but with localhost redirect
# This generates a URL you can visit, then paste the code from the redirect URL
flow.redirect_uri = 'http://localhost:8080/'
auth_url, _ = flow.authorization_url(
prompt='consent',
access_type='offline'
)
print("\n" + "=" * 70)
print("STEP 1: Open this URL in your browser:")
print("=" * 70)
print(f"\n{auth_url}\n")
print("=" * 70)
print("\nSTEP 2: After authorizing, you'll be redirected to a page that")
print(" may show an error. That's OK! Look at the URL bar.")
print("\nSTEP 3: Copy the 'code' parameter from the URL.")
print(" It looks like: http://localhost:8080/?...&code=4/0ATX87l...")
print(" Copy everything after 'code=' until the next '&'")
print("=" * 70)
code = input("\nPaste the authorization code here: ").strip()
# Exchange the code for credentials
flow.fetch_token(code=code)
credentials = flow.credentials
# Save token in the format expected by google-auth
token_data = {
'token': credentials.token,
'refresh_token': credentials.refresh_token,
'token_uri': credentials.token_uri,
'client_id': credentials.client_id,
'client_secret': credentials.client_secret,
'scopes': list(credentials.scopes),
'universe_domain': 'googleapis.com',
'account': ''
}
with open(token_file, 'w') as f:
json.dump(token_data, f, indent=2)
print(f"\n✅ Token saved to {token_file}")
print("\nNow copy this file to your server:")
print(f" scp {token_file} murphy360@192.168.68.82:~/Software/mcp_google_calendar/credentials/")
if __name__ == "__main__":
main()
