From bea57a25e89ea1ea6b3a1a7ce88e96bc976fc544 Mon Sep 17 00:00:00 2001
From: Developer 02 <developer02@didaloghe.onmicrosoft.com>
Date: Fri, 6 Dec 2024 15:12:21 +0100
Subject: [PATCH] =?UTF-8?q?feat(RSACryptographer)=20Init-Methode=20zur=20V?=
 =?UTF-8?q?erwaltung=20des=20pem-Importprozesses=20hinzugef=C3=BCgt?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Security/IRSACryptographer.cs             |  5 ++-
 .../Cryptographer/RSACryptographer.cs         | 38 ++++++-------------
 2 files changed, 16 insertions(+), 27 deletions(-)

diff --git a/DigitalData.Core.Abstractions/Security/IRSACryptographer.cs b/DigitalData.Core.Abstractions/Security/IRSACryptographer.cs
index 9bbeb98..4472344 100644
--- a/DigitalData.Core.Abstractions/Security/IRSACryptographer.cs
+++ b/DigitalData.Core.Abstractions/Security/IRSACryptographer.cs
@@ -1,8 +1,9 @@
 using System.Security.Cryptography;
+using System.Text.Json.Serialization;
 
 namespace DigitalData.Core.Abstractions.Security
 {
-    public interface IRSACryptographer
+    public interface IRSACryptographer : IJsonOnDeserialized
     {
         public string Pem { get; init; }
 
@@ -11,5 +12,7 @@ namespace DigitalData.Core.Abstractions.Security
         public string Issuer { get; init; }
 
         public string Audience { get; init; }
+
+        public void Init();
     }
 }
\ No newline at end of file
diff --git a/DigitalData.Core.Security/Cryptographer/RSACryptographer.cs b/DigitalData.Core.Security/Cryptographer/RSACryptographer.cs
index 3e08d47..06e53be 100644
--- a/DigitalData.Core.Security/Cryptographer/RSACryptographer.cs
+++ b/DigitalData.Core.Security/Cryptographer/RSACryptographer.cs
@@ -10,28 +10,9 @@ namespace DigitalData.Core.Security.Cryptographer
 
         private string? _pemPath;
 
-        public virtual string Pem
-        {
-            get => _pem!;
-            init
-            {
-                ValidatePemInit();
-                _pem = value;
-            }
-        }
+        public virtual string Pem { get => _pem; init => _pem = value; }
 
-        public string? PemPath
-        {
-            get => _pemPath;
-            init
-            {
-                _pemPath = value;
-                if (value is null)
-                    return;
-                ValidatePemInit();
-                _pem = File.ReadAllText(value);
-            }
-        }
+        public string? PemPath { get => _pemPath; init => _pemPath = value; }
 
         public RSAEncryptionPadding Padding { get; init; } = RSAEncryptionPadding.OaepSHA256;
 
@@ -45,14 +26,19 @@ namespace DigitalData.Core.Security.Cryptographer
 
         public void OnDeserialized()
         {
-            if (Pem is null)
-                throw new InvalidOperationException($"Pem must be initialized. Issuer: {Issuer} and Audience: {Audience}");
+            Init();
         }
 
-        private void ValidatePemInit()
+        // TODO: make file read asynchronous, consider multiple routing
+        public virtual void Init()
         {
-            if (_pem is not null)
-                throw new InvalidOperationException($"Pem can only be initilized once. Remove one of the Pem or Pem file initilizations. Issuer: {Issuer} and Audience: {Audience}");
+            if(_pem is null)
+            {
+                if (File.Exists(PemPath))
+                    _pem = File.ReadAllText(PemPath);
+                else
+                    throw new FileNotFoundException($"Pem is not assigned. Furthermore Pem file is not found in {PemPath}. Issuer is {Issuer} and audience {Audience}.");
+            }
         }
     }
 }
\ No newline at end of file