Cheng Zhou
86 lines
2.8 KiB
Python
86 lines
2.8 KiB
Python
from datetime import datetime, timedelta, timezone
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from typing import Any, Dict, Optional
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from fastapi import HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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from app.core.config import settings
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ALGORITHM = "HS256"
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login", scheme_name="Bearer")
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def create_access_token(
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*,
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user_id: str,
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expires_minutes: Optional[int] = None,
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session_start: Optional[datetime] = None,
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max_age_seconds: Optional[int] = None,
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issued_at: Optional[datetime] = None,
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client_type: Optional[str] = None,
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session_id: Optional[str] = None,
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) -> str:
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now = issued_at or datetime.now(timezone.utc)
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if now.tzinfo is None:
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now = now.replace(tzinfo=timezone.utc)
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expire = now + timedelta(minutes=expires_minutes or settings.JWT_EXPIRE_MINUTES)
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session_start_time = session_start or now
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if session_start_time.tzinfo is None:
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session_start_time = session_start_time.replace(tzinfo=timezone.utc)
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if max_age_seconds is not None:
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session_expire = session_start_time + timedelta(seconds=max_age_seconds)
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if expire > session_expire:
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expire = session_expire
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to_encode: Dict[str, Any] = {
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"sub": user_id,
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"exp": expire,
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"iat": int(now.timestamp()),
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"orig_iat": int(session_start_time.timestamp()),
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}
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if client_type:
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to_encode["client_type"] = client_type
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if session_id:
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to_encode["sid"] = session_id
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return jwt.encode(to_encode, settings.JWT_SECRET_KEY, algorithm=ALGORITHM)
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def decode_token(token: str) -> Dict[str, Any]:
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try:
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payload = jwt.decode(token, settings.JWT_SECRET_KEY, algorithms=[ALGORITHM])
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except JWTError as exc:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="无法验证登录凭据",
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headers={"WWW-Authenticate": "Bearer"},
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) from exc
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return payload
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def decode_token_allow_expired(token: str) -> Dict[str, Any]:
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try:
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payload = jwt.decode(
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token,
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settings.JWT_SECRET_KEY,
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algorithms=[ALGORITHM],
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options={"verify_exp": False},
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)
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except JWTError as exc:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="无法验证登录凭据",
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headers={"WWW-Authenticate": "Bearer"},
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) from exc
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return payload
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def hash_password(plain_password: str) -> str:
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return pwd_context.hash(plain_password)
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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return pwd_context.verify(plain_password, hashed_password)
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