init

app/core/security.py

@@ -0,0 +1,49 @@
+from datetime import datetime, timedelta
+from typing import Any, Union, Optional
+import jwt
+from fastapi.security import OAuth2PasswordBearer
+from passlib.context import CryptContext
+from app.core.config import settings
+from cryptography.fernet import Fernet
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+ALGORITHM = "HS256"
+
+# Token认证
+reusable_oauth2 = OAuth2PasswordBearer(
+    tokenUrl=f"{settings.API_V1_STR}/login/access-token"
+)
+
+
+def create_access_token(
+        subject: Union[str, Any], expires_delta: timedelta = None
+) -> str:
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(
+            minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES
+        )
+    to_encode = {"exp": expire, "sub": str(subject)}
+    encoded_jwt = jwt.encode(to_encode, settings.SECRET_KEY, algorithm=ALGORITHM)
+    return encoded_jwt
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password)
+
+
+def decrypt(data, key) -> Optional[bytes]:
+    """
+    解密二进制数据
+    """
+    fernet = Fernet(key)
+    try:
+        return fernet.decrypt(data)
+    except Exception as e:
+        print(str(e))
+        return None