Introduced fernet to credential manager. Closes #183

src/cpl-core/cpl/core/configuration/configuration.py

@@ -7,7 +7,6 @@ from typing import Any
 from cpl.core.configuration.configuration_model_abc import ConfigurationModelABC
 from cpl.core.console.console import Console
 from cpl.core.console.foreground_color_enum import ForegroundColorEnum
-from cpl.core.environment.environment import Environment
 from cpl.core.typing import D, T
 from cpl.core.utils.json_processor import JSONProcessor
 
@@ -88,6 +87,8 @@ class Configuration:
         if os.path.isabs(name):
             file_path = name
         else:
+            from cpl.core.environment import Environment
+
             path_root = Environment.get_cwd()
             if path is not None:
                 path_root = path

src/cpl-core/cpl/core/environment/environment.py

@@ -1,6 +1,6 @@
 import os
 from socket import gethostname
-from typing import Optional, Type
+from typing import Type
 
 from cpl.core.environment.environment_enum import EnvironmentEnum
 from cpl.core.typing import T, D

src/cpl-core/cpl/core/utils/credential_manager.py

@@ -1,12 +1,40 @@
-import base64
+import os
 
+from cryptography.fernet import Fernet
+
+from cpl.core.log.logger import Logger
+
+_logger = Logger(__name__)
 
 class CredentialManager:
     r"""Handles credential encryption and decryption"""
+    _secret: str = None
 
-    @staticmethod
-    def encrypt(string: str) -> str:
-        r"""Encode with base64
+    @classmethod
+    def with_secret(cls, file: str = None):
+        if file is None:
+            file = ".secret"
+
+        if not os.path.isfile(file):
+            dirname = os.path.dirname(file)
+            if dirname != "":
+                os.makedirs(dirname, exist_ok=True)
+
+            with open(file, "w") as secret_file:
+                secret_file.write(Fernet.generate_key().decode())
+                secret_file.close()
+            _logger.warning("Secret file not found, regenerating")
+
+        with open(file, "r") as secret_file:
+            secret = secret_file.read().strip()
+            if secret == "" or secret is None:
+                _logger.fatal("No secret found in .secret file.")
+
+            cls._secret = str(secret)
+
+    @classmethod
+    def encrypt(cls, string: str) -> str:
+        r"""Encode with Fernet
 
         Parameter:
             string: :class:`str`
@@ -15,11 +43,11 @@ class CredentialManager:
         Returns:
             Encoded string
         """
-        return base64.b64encode(string.encode("utf-8")).decode("utf-8")
+        return Fernet(cls._secret).encrypt(string.encode()).decode()
 
-    @staticmethod
-    def decrypt(string: str) -> str:
-        r"""Decode with base64
+    @classmethod
+    def decrypt(cls, string: str) -> str:
+        r"""Decode with Fernet
 
         Parameter:
             string: :class:`str`
@@ -28,19 +56,4 @@ class CredentialManager:
         Returns:
             Decoded string
         """
-        return base64.b64decode(string).decode("utf-8")
-
-    @staticmethod
-    def build_string(string: str, credentials: str):
-        r"""Builds string with credentials in it
-
-        Parameter:
-            string: :class:`str`
-                String in which the variable is replaced by credentials
-            credentials: :class:`str`
-                String to encode
-
-        Returns:
-            Decoded string
-        """
-        return string.replace("$credentials", CredentialManager.decrypt(credentials))
+        return Fernet(cls._secret).decrypt(string).decode()

src/cpl-core/cpl/core/utils/get_value.py

@@ -51,7 +51,7 @@ def get_value(
                 return cast_type[value]
             except KeyError:
                 pass
-            
+
             return default
 
         if (cast_type if not hasattr(cast_type, "__origin__") else cast_type.__origin__) == list: