some dllsHEADmaster

1 files changed, 138 insertions, 0 deletions

diff --git a/Gestor.Common/Gestor.Common.Security/Token.cs b/Gestor.Common/Gestor.Common.Security/Token.cs
new file mode 100644
index 0000000..a988d6a
--- /dev/null
+++ b/Gestor.Common/Gestor.Common.Security/Token.cs
@@ -0,0 +1,138 @@
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text;
+using Gestor.Common.Helpers;
+
+namespace Gestor.Common.Security;
+
+public class Token
+{
+	private readonly byte[] _key = new byte[32]
+	{
+		45, 103, 73, 146, 210, 184, 220, 224, 94, 3,
+		114, 60, 211, 119, 21, 100, 18, 201, 230, 195,
+		119, 252, 73, 208, 209, 39, 222, 48, 47, 142,
+		94, 24
+	};
+
+	private readonly byte[] _initializationVector = new byte[16]
+	{
+		95, 17, 151, 243, 209, 243, 119, 80, 63, 252,
+		13, 180, 162, 13, 23, 218
+	};
+
+	private static readonly byte[] Salt = new byte[16]
+	{
+		38, 220, 255, 0, 173, 237, 122, 238, 197, 254,
+		7, 175, 77, 8, 34, 60
+	};
+
+	public bool VerifyToken(string authHeader)
+	{
+		try
+		{
+			if (!authHeader.Contains("Token"))
+			{
+				return false;
+			}
+			string ecryptedText = authHeader.Replace("Token ", "");
+			return DefaultDecryption(ecryptedText);
+		}
+		catch (Exception)
+		{
+			return false;
+		}
+	}
+
+	public string DefaultEncryption(long clientId, long providerId)
+	{
+		string plainText = $"{providerId}:{Functions.GetNetworkTime().ToUniversalTime().Ticks}";
+		return Encrypt(plainText);
+	}
+
+	public bool DefaultDecryption(string ecryptedText)
+	{
+		string[] textDecrypted = Decrypt(ecryptedText).Split(new char[1] { ':' });
+		return DefaultVerification(textDecrypted);
+	}
+
+	public bool DefaultVerification(string[] textDecrypted)
+	{
+		if (textDecrypted.Length < 2)
+		{
+			return false;
+		}
+		return new DateTime(long.Parse(textDecrypted[1]), DateTimeKind.Utc).Date.AddHours(5.0) >= Functions.GetNetworkTime().ToUniversalTime().Date;
+	}
+
+	public string Encrypt(string plainText)
+	{
+		byte[] inArray;
+		using (AesCryptoServiceProvider aesCryptoServiceProvider = new AesCryptoServiceProvider())
+		{
+			ICryptoTransform transform = aesCryptoServiceProvider.CreateEncryptor(_key, _initializationVector);
+			using MemoryStream memoryStream = new MemoryStream();
+			using CryptoStream stream = new CryptoStream(memoryStream, transform, CryptoStreamMode.Write);
+			using (StreamWriter streamWriter = new StreamWriter(stream))
+			{
+				streamWriter.Write(plainText);
+			}
+			inArray = memoryStream.ToArray();
+		}
+		return Convert.ToBase64String(inArray);
+	}
+
+	public string Decrypt(string plainText)
+	{
+		try
+		{
+			byte[] buffer = Convert.FromBase64String(plainText);
+			string result;
+			using (AesCryptoServiceProvider aesCryptoServiceProvider = new AesCryptoServiceProvider())
+			{
+				ICryptoTransform transform = aesCryptoServiceProvider.CreateDecryptor(_key, _initializationVector);
+				using MemoryStream stream = new MemoryStream(buffer);
+				using CryptoStream stream2 = new CryptoStream(stream, transform, CryptoStreamMode.Read);
+				using StreamReader streamReader = new StreamReader(stream2);
+				result = streamReader.ReadToEnd();
+			}
+			return result;
+		}
+		catch (Exception)
+		{
+			return null;
+		}
+	}
+
+	public string AggerEncrypt(string plain)
+	{
+		string password = "aGG3r" + Convert.ToString(1012) + "#w3BDz$";
+		byte[] bytes = Encoding.UTF8.GetBytes(plain);
+		Rijndael rijndael = Rijndael.Create();
+		Rfc2898DeriveBytes rfc2898DeriveBytes = new Rfc2898DeriveBytes(password, Salt);
+		rijndael.Key = rfc2898DeriveBytes.GetBytes(32);
+		rijndael.IV = rfc2898DeriveBytes.GetBytes(16);
+		MemoryStream memoryStream = new MemoryStream();
+		CryptoStream cryptoStream = new CryptoStream(memoryStream, rijndael.CreateEncryptor(), CryptoStreamMode.Write);
+		cryptoStream.Write(bytes, 0, bytes.Length);
+		cryptoStream.Close();
+		return Convert.ToBase64String(memoryStream.ToArray());
+	}
+
+	public string AggerDecrypt(string cipher)
+	{
+		string password = "aGG3r" + Convert.ToString(1012) + "#w3BDz$";
+		byte[] array = Convert.FromBase64String(cipher);
+		Rijndael rijndael = Rijndael.Create();
+		Rfc2898DeriveBytes rfc2898DeriveBytes = new Rfc2898DeriveBytes(password, Salt);
+		rijndael.Key = rfc2898DeriveBytes.GetBytes(32);
+		rijndael.IV = rfc2898DeriveBytes.GetBytes(16);
+		MemoryStream memoryStream = new MemoryStream();
+		CryptoStream cryptoStream = new CryptoStream(memoryStream, rijndael.CreateDecryptor(), CryptoStreamMode.Write);
+		cryptoStream.Write(array, 0, array.Length);
+		cryptoStream.Close();
+		byte[] bytes = memoryStream.ToArray();
+		return Encoding.UTF8.GetString(bytes);
+	}
+}