151 lines
4.9 KiB
Python
151 lines
4.9 KiB
Python
"""
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User API Key Context Manager
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Provides user-specific API keys to backend services.
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In development: Uses .env file
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In production: Fetches from database per user
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"""
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import os
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from typing import Optional, Dict
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from loguru import logger
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from contextlib import contextmanager
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class UserAPIKeyContext:
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"""
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Context manager for user-specific API keys.
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Usage:
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with UserAPIKeyContext(user_id) as api_keys:
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gemini_key = api_keys.get('gemini')
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exa_key = api_keys.get('exa')
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# Use keys for this specific user
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"""
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def __init__(self, user_id: Optional[str] = None):
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"""
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Initialize with optional user_id.
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Args:
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user_id: User ID to fetch keys for. If None, uses .env keys (local mode)
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"""
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self.user_id = user_id
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self.keys: Dict[str, str] = {}
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self._is_local = os.getenv('DEPLOY_ENV', 'local') == 'local'
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def __enter__(self):
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"""Load API keys when entering context."""
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if self._is_local:
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# Local mode: Use .env file
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self.keys = self._load_from_env()
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logger.debug(f"[LOCAL] Loaded API keys from .env file")
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elif self.user_id:
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# Production mode: Fetch from database
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self.keys = self._load_from_database(self.user_id)
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logger.debug(f"[PRODUCTION] Loaded API keys from database for user {self.user_id}")
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else:
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logger.warning("No user_id provided in production mode - using empty keys")
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self.keys = {}
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return self.keys
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def __exit__(self, exc_type, exc_val, exc_tb):
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"""Clean up when exiting context."""
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self.keys.clear()
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return False # Don't suppress exceptions
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def _load_from_env(self) -> Dict[str, str]:
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"""Load API keys from environment variables (.env file)."""
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return {
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'gemini': os.getenv('GEMINI_API_KEY', ''),
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'exa': os.getenv('EXA_API_KEY', ''),
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'copilotkit': os.getenv('COPILOTKIT_API_KEY', ''),
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'openai': os.getenv('OPENAI_API_KEY', ''),
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'anthropic': os.getenv('ANTHROPIC_API_KEY', ''),
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'tavily': os.getenv('TAVILY_API_KEY', ''),
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'serper': os.getenv('SERPER_API_KEY', ''),
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'firecrawl': os.getenv('FIRECRAWL_API_KEY', ''),
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}
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def _load_from_database(self, user_id: str) -> Dict[str, str]:
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"""Load API keys from database for specific user."""
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try:
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from services.onboarding_database_service import OnboardingDatabaseService
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from services.database import SessionLocal
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db_service = OnboardingDatabaseService()
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db = SessionLocal()
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try:
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keys = db_service.get_api_keys(user_id, db)
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logger.info(f"Loaded {len(keys)} API keys from database for user {user_id}")
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return keys
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finally:
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db.close()
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except Exception as e:
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logger.error(f"Failed to load API keys from database for user {user_id}: {e}")
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return {}
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@staticmethod
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def get_user_key(user_id: Optional[str], provider: str) -> Optional[str]:
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"""
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Convenience method to get a single API key for a user.
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Args:
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user_id: User ID (None for development mode)
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provider: Provider name (e.g., 'gemini', 'exa')
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Returns:
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API key string or None
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"""
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with UserAPIKeyContext(user_id) as keys:
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return keys.get(provider)
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@contextmanager
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def user_api_keys(user_id: Optional[str] = None):
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"""
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Context manager function for easier usage.
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Usage:
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from services.user_api_key_context import user_api_keys
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with user_api_keys(user_id) as keys:
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gemini_key = keys.get('gemini')
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"""
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context = UserAPIKeyContext(user_id)
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try:
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yield context.__enter__()
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finally:
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context.__exit__(None, None, None)
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# Convenience function for FastAPI dependency injection
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def get_user_api_keys(user_id: str) -> Dict[str, str]:
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"""
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Get user-specific API keys for use in FastAPI endpoints.
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Args:
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user_id: User ID from current_user
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Returns:
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Dictionary of API keys for this user
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"""
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with UserAPIKeyContext(user_id) as keys:
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return keys
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def get_gemini_key(user_id: Optional[str] = None) -> Optional[str]:
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"""Get Gemini API key for user."""
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return UserAPIKeyContext.get_user_key(user_id, 'gemini')
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def get_exa_key(user_id: Optional[str] = None) -> Optional[str]:
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"""Get Exa API key for user."""
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return UserAPIKeyContext.get_user_key(user_id, 'exa')
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def get_copilotkit_key(user_id: Optional[str] = None) -> Optional[str]:
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"""Get CopilotKit API key for user."""
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return UserAPIKeyContext.get_user_key(user_id, 'copilotkit')
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