From 36afcdf0988e753ae2178fb8220b02f2c4d0b2b2 Mon Sep 17 00:00:00 2001
From: ivarlovlie <git@ivarlovlie.no>
Date: Sun, 30 Jan 2022 01:41:08 +0100
Subject: refactor: Convert solution for file-scoped namespaces

---
 src/IOL.VippsEcommerce/Helpers.cs | 129 +++++++++++++++++++-------------------
 1 file changed, 64 insertions(+), 65 deletions(-)

(limited to 'src/IOL.VippsEcommerce/Helpers.cs')

diff --git a/src/IOL.VippsEcommerce/Helpers.cs b/src/IOL.VippsEcommerce/Helpers.cs
index f7645a5..7e61181 100644
--- a/src/IOL.VippsEcommerce/Helpers.cs
+++ b/src/IOL.VippsEcommerce/Helpers.cs
@@ -4,82 +4,81 @@ using System.Linq;
 using System.Security.Cryptography;
 using System.Text;
 
-namespace IOL.VippsEcommerce
+namespace IOL.VippsEcommerce;
+
+internal static class Helpers
 {
-	internal static class Helpers
-	{
-		private const int AES_BLOCK_BYTE_SIZE = 128 / 8;
-		private static readonly RandomNumberGenerator _random = RandomNumberGenerator.Create();
-
-		public static bool IsNullOrWhiteSpace(this string value) => string.IsNullOrWhiteSpace(value);
-		public static bool IsPresent(this string value) => !string.IsNullOrWhiteSpace(value);
-
-		public static bool IsDirectoryWritable(this string dirPath, bool throwIfFails = false) {
-			try {
-				using (var fs = File.Create(Path.Combine(dirPath, Path.GetRandomFileName()),
-											1,
-											FileOptions.DeleteOnClose)
-				) { }
-
-				return true;
-			} catch {
-				if (throwIfFails)
-					throw;
-
-				return false;
-			}
+	private const int AES_BLOCK_BYTE_SIZE = 128 / 8;
+	private static readonly RandomNumberGenerator _random = RandomNumberGenerator.Create();
+
+	public static bool IsNullOrWhiteSpace(this string value) => string.IsNullOrWhiteSpace(value);
+	public static bool IsPresent(this string value) => !string.IsNullOrWhiteSpace(value);
+
+	public static bool IsDirectoryWritable(this string dirPath, bool throwIfFails = false) {
+		try {
+			using (var fs = File.Create(Path.Combine(dirPath, Path.GetRandomFileName()),
+										1,
+										FileOptions.DeleteOnClose)
+				  ) { }
+
+			return true;
+		} catch {
+			if (throwIfFails)
+				throw;
+
+			return false;
 		}
+	}
 
-		//https://tomrucki.com/posts/aes-encryption-in-csharp/
-		public static string EncryptWithAes(this string toEncrypt, string password) {
-			var key = GetKey(password);
+	//https://tomrucki.com/posts/aes-encryption-in-csharp/
+	public static string EncryptWithAes(this string toEncrypt, string password) {
+		var key = GetKey(password);
 
-			using var aes = CreateAes();
-			var iv = GenerateRandomBytes(AES_BLOCK_BYTE_SIZE);
-			var plainText = Encoding.UTF8.GetBytes(toEncrypt);
+		using var aes = CreateAes();
+		var iv = GenerateRandomBytes(AES_BLOCK_BYTE_SIZE);
+		var plainText = Encoding.UTF8.GetBytes(toEncrypt);
 
-			using var encryptor = aes.CreateEncryptor(key, iv);
-			var cipherText = encryptor
-					.TransformFinalBlock(plainText, 0, plainText.Length);
+		using var encryptor = aes.CreateEncryptor(key, iv);
+		var cipherText = encryptor
+				.TransformFinalBlock(plainText, 0, plainText.Length);
 
-			var result = new byte[iv.Length + cipherText.Length];
-			iv.CopyTo(result, 0);
-			cipherText.CopyTo(result, iv.Length);
+		var result = new byte[iv.Length + cipherText.Length];
+		iv.CopyTo(result, 0);
+		cipherText.CopyTo(result, iv.Length);
 
-			return Convert.ToBase64String(result);
-		}
+		return Convert.ToBase64String(result);
+	}
 
-		private static Aes CreateAes() {
-			var aes = Aes.Create();
-			aes.Mode = CipherMode.CBC;
-			aes.Padding = PaddingMode.PKCS7;
-			return aes;
-		}
+	private static Aes CreateAes() {
+		var aes = Aes.Create();
+		aes.Mode = CipherMode.CBC;
+		aes.Padding = PaddingMode.PKCS7;
+		return aes;
+	}
 
-		public static string DecryptWithAes(this string input, string password) {
-			var key = GetKey(password);
-			var encryptedData = Convert.FromBase64String(input);
+	public static string DecryptWithAes(this string input, string password) {
+		var key = GetKey(password);
+		var encryptedData = Convert.FromBase64String(input);
 
-			using var aes = CreateAes();
-			var iv = encryptedData.Take(AES_BLOCK_BYTE_SIZE).ToArray();
-			var cipherText = encryptedData.Skip(AES_BLOCK_BYTE_SIZE).ToArray();
+		using var aes = CreateAes();
+		var iv = encryptedData.Take(AES_BLOCK_BYTE_SIZE).ToArray();
+		var cipherText = encryptedData.Skip(AES_BLOCK_BYTE_SIZE).ToArray();
 
-			using var decryptor = aes.CreateDecryptor(key, iv);
-			var decryptedBytes = decryptor
-					.TransformFinalBlock(cipherText, 0, cipherText.Length);
-			return Encoding.UTF8.GetString(decryptedBytes);
-		}
+		using var decryptor = aes.CreateDecryptor(key, iv);
+		var decryptedBytes = decryptor
+				.TransformFinalBlock(cipherText, 0, cipherText.Length);
+		return Encoding.UTF8.GetString(decryptedBytes);
+	}
 
-		private static byte[] GetKey(string password) {
-			var keyBytes = Encoding.UTF8.GetBytes(password);
-			using var md5 = MD5.Create();
-			return md5.ComputeHash(keyBytes);
-		}
+	private static byte[] GetKey(string password) {
+		var keyBytes = Encoding.UTF8.GetBytes(password);
+		using var md5 = MD5.Create();
+		return md5.ComputeHash(keyBytes);
+	}
 
-		private static byte[] GenerateRandomBytes(int numberOfBytes) {
-			var randomBytes = new byte[numberOfBytes];
-			_random.GetBytes(randomBytes);
-			return randomBytes;
-		}
+	private static byte[] GenerateRandomBytes(int numberOfBytes) {
+		var randomBytes = new byte[numberOfBytes];
+		_random.GetBytes(randomBytes);
+		return randomBytes;
 	}
-}
+}
\ No newline at end of file
-- 
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