Backend finished

Co-authored-by: Álvaro <alvaro6gv@users.noreply.github.com>

backend/app/core/config.py

@@ -0,0 +1,22 @@
+from pydantic_settings import BaseSettings
+from dotenv import load_dotenv
+import os
+
+load_dotenv()
+
+class Settings(BaseSettings):
+    DB_URL: str = os.getenv('DB_URL')
+    SECRET_KEY: str = os.getenv('SECRET_KEY')
+    ALGORITHM: str = os.getenv('ALGORITHM', 'HS256')
+    EXPIRATION: int = int(os.getenv('EXPIRATION', 86400))
+    
+    TOTP_INTERVAL: int = int(os.getenv('TOTP_INTERVAL', 30))
+    TOTP_DIGITS: int = int(os.getenv('TOTP_DIGITS', 6))
+    TOTP_ALGORITHM: str = os.getenv('TOTP_ALGORITHM', 'SHA1')
+    TOTP_ISSUER: str = os.getenv('TOTP_ISSUER', 'SSII2FA')
+    TOTP_NAME_PREFIX: str = os.getenv('TOTP_NAME_PREFIX', 'user')
+    
+    class Config:
+        env_file = ".env"
+        
+settings = Settings()

backend/app/core/security.py

@@ -0,0 +1,35 @@
+from passlib.context import CryptContext
+from datetime import datetime, timedelta, timezone
+from app.core.config import settings
+import jwt
+from fastapi import HTTPException, status
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+def hash_password(password: str) -> str:
+    return pwd_context.hash(password)
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+def generate_jwt(data: dict, expires: timedelta | None = None):
+    to_encode = data.copy()
+    if expires:
+        expire = datetime.now(timezone.utc) + expires
+    else:
+        expire = datetime.now(timezone.utc) + timedelta(minutes=15)
+    to_encode.update({"exp": expire})
+    encoded_jwt = jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
+    return encoded_jwt
+
+
+def verify_jwt(token: str):
+    try:
+        payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
+        return payload
+    except jwt.PyJWTError:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Token inválido o expirado",
+            headers={"WWW-Authenticate": "Bearer"},
+        )