From 49f70049caffe9ead47b32b227a0408b66f49177 Mon Sep 17 00:00:00 2001
From: Mark <mark@dev.haus>
Date: Mon, 22 Feb 2021 11:44:06 +0900
Subject: [PATCH] Refactoring

---
 .../DecryptorTests.cs                           | 17 ++++++++++++++++-
 src/QnapBackupDecryptor.Core/OpenSsl.cs         | 17 +++++++++++++++--
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/src/QnapBackupDecryptor.Core.Tests/DecryptorTests.cs b/src/QnapBackupDecryptor.Core.Tests/DecryptorTests.cs
index d014a81..a662845 100644
--- a/src/QnapBackupDecryptor.Core.Tests/DecryptorTests.cs
+++ b/src/QnapBackupDecryptor.Core.Tests/DecryptorTests.cs
@@ -11,13 +11,28 @@ public class DecryptorTests
     {
         private const string PASSWORD = "wisLUBIMyBNcnvo3eDMS";
 
+        [Test]
+        public void OpenSSLDecrypt_ValidPassword_OkResult()
+        {
+            // Arrange
+            var encryptedFile = new FileInfo(Path.Combine("TestFiles", "encrypted.txt"));
+            var outputFile = new FileInfo("decrypted.txt");
+
+            // Act 
+            var passwordBytes = Encoding.UTF8.GetBytes(PASSWORD);
+            var sslDecrypt = OpenSsl.Decrypt(encryptedFile, passwordBytes, outputFile);
+
+            // Assert
+            sslDecrypt.IsSuccess.ShouldBeTrue();
+        }
+
 
         [Test]
         public void OpenSSLDecrypt_Text()
         {
             // Arrange
             var encryptedFile = new FileInfo(Path.Combine("TestFiles", "encrypted.txt"));
-            var outputFile = new FileInfo(Path.Combine("TestFiles", "decrypted.txt"));
+            var outputFile = new FileInfo("decrypted.txt");
 
             // Act 
             var passwordBytes = Encoding.UTF8.GetBytes(PASSWORD);
diff --git a/src/QnapBackupDecryptor.Core/OpenSsl.cs b/src/QnapBackupDecryptor.Core/OpenSsl.cs
index 5e3728c..8c42659 100644
--- a/src/QnapBackupDecryptor.Core/OpenSsl.cs
+++ b/src/QnapBackupDecryptor.Core/OpenSsl.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Runtime.InteropServices;
 using System.Security.Cryptography;
 
 namespace QnapBackupDecryptor.Core
@@ -108,11 +109,11 @@ private static Result<FileInfo> DecryptFile(FileInfo encryptedFile, byte[] key,
                 using (var destination = outputFile.OpenWrite())
                 using (var cryptoStream = new CryptoStream(encryptedFileStream, decryptor, CryptoStreamMode.Read))
                 {
-                    outputFile.Attributes |= FileAttributes.Hidden;
+                    HideFile(outputFile);
                     cryptoStream.CopyTo(destination);
                 }
 
-                outputFile.Attributes -= FileAttributes.Hidden;
+                ShowFile(outputFile);
 
                 return Result<FileInfo>.OkResult(outputFile);
             }
@@ -129,5 +130,17 @@ private static Result<FileInfo> DecryptFile(FileInfo encryptedFile, byte[] key,
                 rijndaelManaged.Dispose();
             }
         }
+
+        private static void HideFile(FileSystemInfo file)
+        {
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+                file.Attributes |= FileAttributes.Hidden;
+        }
+
+        private static void ShowFile(FileSystemInfo file)
+        {
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+                file.Attributes -= FileAttributes.Hidden;
+        }
     }
 }