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Auth optimization

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This commit is contained in:
Andre Beging
2022-04-04 15:19:58 +02:00
parent 83fb4a3c5e
commit 1513ed9169
8 changed files with 100 additions and 44 deletions
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133
FoodsharingSiegen.Server/Auth/AuthHelper.cs
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@@ -1,133 +0,0 @@
using System.IdentityModel.Tokens.Jwt;
using System.Security.Cryptography;
using System.Text;
using Microsoft.IdentityModel.Tokens;
namespace FoodsharingSiegen.Server.Auth
{
/// <summary>
/// The auth helper class (a. beging, 04.04.2022)
/// </summary>
public static class AuthHelper
{
#region Public Method Decrypt
/// <summary>
/// Decrypts the crypted text (a. beging, 04.04.2022)
/// </summary>
/// <param name="cryptedText">The crypted text</param>
/// <returns>The string</returns>
public static string Decrypt(string cryptedText)
{
CreateAlgorithm(out var tripleDes);
var toEncryptArray = Convert.FromBase64String(cryptedText);
var cTransform = tripleDes.CreateDecryptor();
var resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tripleDes.Clear();
return Encoding.UTF8.GetString(resultArray);
}
#endregion
#region Public Method Encrypt
/// <summary>
/// Encrypts the plain text (a. beging, 04.04.2022)
/// </summary>
/// <param name="plainText">The plain text</param>
/// <returns>The string</returns>
public static string Encrypt(string plainText)
{
CreateAlgorithm(out var tripleDes);
var toEncryptArray = Encoding.UTF8.GetBytes(plainText );
var cTransform = tripleDes.CreateEncryptor();
var resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tripleDes.Clear();
return Convert.ToBase64String(resultArray, 0, resultArray.Length);
}
#endregion
#region Public Method GetSigningKey
/// <summary>
/// Gets the signing key (a. beging, 04.04.2022)
/// </summary>
/// <returns>The security key</returns>
public static SecurityKey GetSigningKey() => new SymmetricSecurityKey(Encoding.ASCII.GetBytes(SigningKey));
#endregion
#region Public Method ValidateToken
/// <summary>
/// Validates the token using the specified token (a. beging, 04.04.2022)
/// </summary>
/// <param name="token">The token</param>
/// <returns>A task containing the bool</returns>
public static async Task<bool> ValidateToken(string? token)
{
try
{
var tokenHandler = new JwtSecurityTokenHandler();
var result = await tokenHandler.ValidateTokenAsync(token, new TokenValidationParameters
{
ValidateIssuerSigningKey = true,
IssuerSigningKey = GetSigningKey(),
ValidateAudience = true,
ValidAudience = "FS-Siegen",
ValidateIssuer = true,
ValidIssuer = "FS-Siegen"
});
return result.IsValid;
}
catch (Exception e)
{
return false;
}
}
#endregion
#region Private Method CreateAlgorithm
/// <summary>
/// Creates the algorithm using the specified triple des (a. beging, 04.04.2022)
/// </summary>
/// <param name="tripleDes">The triple des</param>
private static void CreateAlgorithm(out TripleDES tripleDes)
{
var md5 = MD5.Create();
var keyArray = md5.ComputeHash(Encoding.UTF8.GetBytes(SigningKey));
md5.Clear();
tripleDes = TripleDES.Create();
tripleDes.Key = keyArray;
tripleDes.Mode = CipherMode.ECB;
tripleDes.Padding = PaddingMode.PKCS7;
}
#endregion
/// <summary>
/// The signing key
/// </summary>
public const string SigningKey = "2uasw2§$%1nd47n9s43&%Zs3529s23&/%AW";
}
}

21
FoodsharingSiegen.Server/Auth/AuthService.cs
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@@ -5,6 +5,7 @@ using FoodsharingSiegen.Contracts.Entity;
using FoodsharingSiegen.Server.Data;
using FoodsharingSiegen.Server.Data.Service;
using FoodsharingSiegen.Server.Service;
using FoodsharingSiegen.Shared.Helper;
using Microsoft.AspNetCore.Components.Authorization;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;
@@ -92,25 +93,7 @@ namespace FoodsharingSiegen.Server.Auth
if (User != null)
{
// Daten korrekt
var tokenHandler = new JwtSecurityTokenHandler();
var tokenDescriptor = new SecurityTokenDescriptor
{
Subject = new ClaimsIdentity(new[]
{
new Claim(ClaimTypes.NameIdentifier, User.Id.ToString()),
}),
Expires = DateTime.UtcNow.AddDays(30),
Issuer = "FS-Siegen",
Audience = "FS-Siegen",
SigningCredentials = new SigningCredentials(AuthHelper.GetSigningKey(), SecurityAlgorithms.HmacSha256Signature)
};
var token = tokenHandler.CreateToken(tokenDescriptor);
var serializedToken = tokenHandler.WriteToken(token);
var serializedToken = AuthHelper.CreateToken(User.Id);
await _localStorageService.SetItem(StorageKeys.TokenKey, serializedToken);
return new OperationResult();

1
FoodsharingSiegen.Server/Auth/TokenAuthStateProvider.cs
View File

@@ -1,6 +1,7 @@
using System.Security.Claims;
using FoodsharingSiegen.Contracts;
using FoodsharingSiegen.Server.Auth;
using FoodsharingSiegen.Shared.Helper;
using Microsoft.AspNetCore.Components.Authorization;
namespace FoodsharingSiegen.Server.Service