copilot-swe-agent[bot]
5be2794c95
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
132 lines
4.7 KiB
Python
132 lines
4.7 KiB
Python
"""
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OAuth2 authentication service for Google and other providers.
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"""
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from typing import Dict, Any, Optional
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from datetime import datetime
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import httpx
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from authlib.integrations.starlette_client import OAuth
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from fastapi import HTTPException, status
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import logging
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from app.core.config import settings
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from app.core.security import create_access_token, create_refresh_token
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from app.models.database_models import User
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logger = logging.getLogger(__name__)
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class OAuthService:
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"""OAuth2 authentication service"""
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def __init__(self):
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self.oauth = OAuth()
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self._register_google()
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def _register_google(self):
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"""Register Google OAuth2 provider"""
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if settings.GOOGLE_CLIENT_ID and settings.GOOGLE_CLIENT_SECRET:
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self.oauth.register(
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name='google',
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client_id=settings.GOOGLE_CLIENT_ID,
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client_secret=settings.GOOGLE_CLIENT_SECRET,
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server_metadata_url='https://accounts.google.com/.well-known/openid-configuration',
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client_kwargs={'scope': 'openid email profile'}
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)
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async def get_google_user_info(self, code: str, redirect_uri: str) -> Dict[str, Any]:
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"""
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Exchange Google authorization code for user information.
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Args:
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code: Authorization code from Google
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redirect_uri: Redirect URI used in OAuth flow
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Returns:
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Dict with user information (email, name, google_id)
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"""
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try:
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# Exchange code for token
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async with httpx.AsyncClient() as client:
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token_response = await client.post(
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'https://oauth2.googleapis.com/token',
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data={
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'code': code,
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'client_id': settings.GOOGLE_CLIENT_ID,
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'client_secret': settings.GOOGLE_CLIENT_SECRET,
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'redirect_uri': redirect_uri,
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'grant_type': 'authorization_code'
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}
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)
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if token_response.status_code != 200:
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logger.error(f"Google token exchange failed: {token_response.text}")
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Failed to exchange authorization code"
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)
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token_data = token_response.json()
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access_token = token_data.get('access_token')
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if not access_token:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="No access token received"
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)
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# Get user info
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user_info_response = await client.get(
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'https://www.googleapis.com/oauth2/v2/userinfo',
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headers={'Authorization': f'Bearer {access_token}'}
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)
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if user_info_response.status_code != 200:
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logger.error(f"Google user info fetch failed: {user_info_response.text}")
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="Failed to get user information"
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)
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user_info = user_info_response.json()
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return {
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'email': user_info.get('email'),
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'full_name': user_info.get('name'),
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'google_id': user_info.get('id'),
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'picture': user_info.get('picture'),
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'verified_email': user_info.get('verified_email', False)
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}
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except HTTPException:
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raise
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except Exception as e:
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logger.error(f"OAuth error: {e}")
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail="OAuth authentication failed"
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)
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@staticmethod
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def create_tokens_for_user(user: User) -> Dict[str, str]:
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"""
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Create access and refresh tokens for a user.
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Args:
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user: User database model
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Returns:
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Dict with access_token, refresh_token, and token_type
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"""
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access_token = create_access_token(data={"sub": user.id})
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refresh_token = create_refresh_token(data={"sub": user.id})
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return {
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"access_token": access_token,
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"refresh_token": refresh_token,
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"token_type": "bearer"
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}
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# Global OAuth service instance
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oauth_service = OAuthService()
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