02bbf6012f
- Remove contact references from system prompt, add language matching rule - Add copy-to-clipboard button on assistant messages with iframe fallback - Increase token lifetime to 24h/30d, add refresh queue, remove hard redirect - Fix adaptive layout for iframe/standalone, pin input at bottom - Fix CSS specificity conflict (8px→2px spacing), add markdown post-processing Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
134 lines
2.6 KiB
Python
134 lines
2.6 KiB
Python
"""
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Security utilities
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JWT token management and password hashing
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"""
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import logging
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from datetime import datetime, timedelta
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from typing import Optional, Dict
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import jwt
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import hashlib
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from app.config import get_settings
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logger = logging.getLogger(__name__)
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settings = get_settings()
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def create_access_token(
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data: Dict,
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expires_delta: Optional[timedelta] = None
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) -> str:
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"""
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Create JWT access token
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Args:
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data: Token payload data
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expires_delta: Optional expiration time delta
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Returns:
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Encoded JWT token
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"""
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to_encode = data.copy()
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if expires_delta:
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expire = datetime.utcnow() + expires_delta
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else:
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expire = datetime.utcnow() + timedelta(hours=24)
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to_encode.update({"exp": expire, "iat": datetime.utcnow()})
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encoded_jwt = jwt.encode(
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to_encode,
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settings.SECRET_KEY,
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algorithm="HS256"
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)
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return encoded_jwt
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def create_refresh_token(data: Dict) -> str:
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"""
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Create JWT refresh token (longer expiration)
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Args:
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data: Token payload data
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Returns:
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Encoded JWT refresh token
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"""
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return create_access_token(
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data,
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expires_delta=timedelta(days=30)
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)
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def decode_token(token: str) -> Optional[Dict]:
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"""
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Decode and verify JWT token
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Args:
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token: JWT token string
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Returns:
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Decoded token payload or None if invalid
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"""
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try:
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payload = jwt.decode(
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token,
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settings.SECRET_KEY,
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algorithms=["HS256"]
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)
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return payload
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except jwt.ExpiredSignatureError:
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logger.warning("Token has expired")
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return None
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except jwt.InvalidTokenError as e:
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logger.warning(f"Invalid token: {e}")
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return None
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def hash_token(token: str) -> str:
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"""
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Hash token for secure storage using SHA-256
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Args:
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token: Token string to hash
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Returns:
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Hashed token (hex digest)
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"""
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return hashlib.sha256(token.encode('utf-8')).hexdigest()
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def verify_token_hash(token: str, hashed: str) -> bool:
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"""
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Verify token against hash
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Args:
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token: Plain token string
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hashed: Hashed token
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Returns:
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True if token matches hash
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"""
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return hash_token(token) == hashed
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def get_token_subject(token: str) -> Optional[str]:
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"""
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Extract subject (user_id) from token
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Args:
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token: JWT token string
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Returns:
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User ID or None
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"""
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payload = decode_token(token)
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if payload:
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return payload.get("sub")
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return None
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