56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
"""
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安全相关功能：密码加密、JWT等
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"""
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from datetime import datetime, timedelta
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from typing import Optional
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from jose import JWTError, jwt
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import bcrypt
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from app.core.config import settings
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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"""验证密码"""
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try:
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# bcrypt限制密码长度最多72字节
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password_bytes = plain_password.encode('utf-8')
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if len(password_bytes) > 72:
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password_bytes = password_bytes[:72]
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return bcrypt.checkpw(password_bytes, hashed_password.encode('utf-8'))
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except Exception:
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return False
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def get_password_hash(password: str) -> str:
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"""获取密码哈希"""
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# bcrypt限制密码长度最多72字节
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password_bytes = password.encode('utf-8')
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if len(password_bytes) > 72:
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password_bytes = password_bytes[:72]
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# 生成盐并哈希密码
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salt = bcrypt.gensalt()
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hashed = bcrypt.hashpw(password_bytes, salt)
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return hashed.decode('utf-8')
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def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
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"""创建访问令牌"""
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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(minutes=settings.JWT_ACCESS_TOKEN_EXPIRE_MINUTES)
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to_encode.update({"exp": expire})
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encoded_jwt = jwt.encode(to_encode, settings.JWT_SECRET_KEY or settings.SECRET_KEY, algorithm=settings.JWT_ALGORITHM)
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return encoded_jwt
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def decode_access_token(token: str) -> Optional[dict]:
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"""解码访问令牌"""
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try:
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payload = jwt.decode(token, settings.JWT_SECRET_KEY or settings.SECRET_KEY, algorithms=[settings.JWT_ALGORITHM])
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return payload
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except JWTError:
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return None
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