✨ feat: 新增LDAP认证

backend/apps/utils/crypto.py

@@ -0,0 +1,44 @@
+import base64
+from cryptography.fernet import Fernet
+from django.conf import settings
+import hashlib
+
+class CryptoUtils:
+    """加密解密工具类"""
+    
+    @staticmethod
+    def _get_key():
+        """获取加密密钥"""
+        key_material = settings.SECRET_KEY.encode('utf-8')
+        digest = hashlib.sha256(key_material).digest()
+        key = base64.urlsafe_b64encode(digest)
+        return key
+    
+    @staticmethod
+    def encrypt_password(password):
+        """加密密码"""
+        if not password:
+            return password
+            
+        try:
+            key = CryptoUtils._get_key()
+            fernet = Fernet(key)
+            encrypted = fernet.encrypt(password.encode('utf-8'))
+            return base64.urlsafe_b64encode(encrypted).decode('utf-8')
+        except Exception:
+            return password
+    
+    @staticmethod
+    def decrypt_password(encrypted_password):
+        """解密密码"""
+        if not encrypted_password:
+            return encrypted_password
+            
+        try:
+            key = CryptoUtils._get_key()
+            fernet = Fernet(key)
+            encrypted_data = base64.urlsafe_b64decode(encrypted_password.encode('utf-8'))
+            decrypted = fernet.decrypt(encrypted_data)
+            return decrypted.decode('utf-8')
+        except Exception:
+            return encrypted_password