first commit

app/core/security.py

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+# core/security.py
+from passlib.context import CryptContext
+from datetime import datetime, timedelta
+from typing import Optional
+#
+import os
+import jwt
+import logging
+
+
+logger = logging.getLogger(__name__)
+
+# Configuración de hashing de contraseñas
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+# Configuración de JWT
+SECRET_KEY = os.getenv("SECRET_KEY", "xma-secret-key-change-in-production")
+ALGORITHM = "HS256"
+ACCESS_TOKEN_EXPIRE_HOURS = int(os.getenv("ACCESS_TOKEN_EXPIRE_HOURS", "1"))
+
+
+def get_password_hash(password: str) -> str:
+    """Genera hash de contraseña con bcrypt"""
+
+    if password.startswith("$2b$") or password.startswith("$2a$"):
+        raise ValueError("La contrasena ya esta hasheada")
+    
+    password_bytes = password.encode('utf-8')
+    if len(password_bytes) > 72:
+        password = password[:72]
+
+    return pwd_context.hash(password)
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    try:
+        return pwd_context.verify(plain_password, hashed_password)
+    except Exception as e:
+        logger.error(f"Error verifying password: {e}")
+        return False
+
+
+def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
+    """Crea token JWT"""
+    to_encode = data.copy()
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(hours=ACCESS_TOKEN_EXPIRE_HOURS)
+    
+    to_encode.update({"exp": expire, "iat": datetime.utcnow()})
+    encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
+    return encoded_jwt
+
+
+def decode_access_token(token: str) -> dict:
+    """Decodifica token JWT"""
+    try:
+        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
+        return payload
+    except jwt.ExpiredSignatureError:
+        raise ValueError("Token expirado")
+    except jwt.InvalidTokenError:
+        raise ValueError("Token inválido")