refactor(DigitalData.Core.Security.RSAKey.Base): Ordnerverzeichnisse und Namespaces geordnet

DigitalData.Core.Abstractions.Security/Extensions/SecurityExtensions.cs

@@ -0,0 +1,64 @@
+using DigitalData.Core.Abstractions.Security.Common;
+using DigitalData.Core.Abstractions.Security.Key;
+using DigitalData.Core.Abstractions.Security.Services;
+using Microsoft.IdentityModel.Tokens;
+using System.Text;
+
+namespace DigitalData.Core.Abstractions.Security.Extensions;
+
+public static class SecurityExtensions
+{
+    #region Unique Security Context
+    public static IEnumerable<TUniqueSecurityContext> GetByIssuer<TUniqueSecurityContext>(this IEnumerable<TUniqueSecurityContext> contextes, string issuer) where TUniqueSecurityContext : IUniqueSecurityContext
+        => contextes.Where(c => c.Issuer == issuer);
+
+    public static IEnumerable<TUniqueSecurityContext> GetByAudience<TUniqueSecurityContext>(this IEnumerable<TUniqueSecurityContext> contextes, string audience) where TUniqueSecurityContext : IUniqueSecurityContext
+        => contextes.Where(c => c.Audience == audience);
+
+    public static TUniqueSecurityContext Get<TUniqueSecurityContext>(this IEnumerable<TUniqueSecurityContext> contextes, string issuer, string audience) where TUniqueSecurityContext : IUniqueSecurityContext
+        => contextes.Where(c => c.Issuer == issuer && c.Audience == audience).SingleOrDefault()
+        ?? throw new InvalidOperationException($"Exactly one {typeof(TUniqueSecurityContext).Name} must exist with Issuer: '{issuer}' and Audience: '{audience}'.");
+
+    public static bool TryGet<TUniqueSecurityContext>(this IEnumerable<TUniqueSecurityContext> contextes, string issuer, string audience, out TUniqueSecurityContext context) where TUniqueSecurityContext : IUniqueSecurityContext
+    {
+#pragma warning disable CS8601 // Possible null reference assignment.
+        context = contextes.SingleOrDefault(c => c.Issuer == issuer && c.Audience == audience);
+#pragma warning restore CS8601 // Possible null reference assignment.
+        return context is not null;
+    }
+
+    public static TUniqueSecurityContext Match<TUniqueSecurityContext>(this IEnumerable<TUniqueSecurityContext> contextes, IUniqueSecurityContext lookupContext) where TUniqueSecurityContext : IUniqueSecurityContext
+        => contextes.Get(lookupContext.Issuer, lookupContext.Audience);
+
+    public static bool TryMatch<TUniqueSecurityContext>(this IEnumerable<TUniqueSecurityContext> contextes, IUniqueSecurityContext lookupContext, out TUniqueSecurityContext context) where TUniqueSecurityContext : IUniqueSecurityContext
+        => contextes.TryGet(lookupContext.Issuer, lookupContext.Audience, out context);
+    #endregion Unique Security Context
+
+    #region De/serilization
+    internal static byte[] Base64ToByte(this string base64String) => Convert.FromBase64String(base64String);
+
+    internal static string BytesToString(this byte[] bytes) => Encoding.UTF8.GetString(bytes);
+
+    internal static string ToBase64String(this byte[] bytes) => Convert.ToBase64String(bytes);
+
+    internal static byte[] ToBytes(this string str) => Encoding.UTF8.GetBytes(str);
+
+    public static string Decrypt(this IAsymmetricDecryptor decryptor, string data) => decryptor
+        .Decrypt(data.Base64ToByte()).BytesToString();
+    #endregion De/serilization
+
+    #region Asymmetric Encryptor
+    public static string Encrypt(this IAsymmetricEncryptor encryptor, string data) => encryptor.Encrypt(data.ToBytes()).ToBase64String();
+    #endregion Asymmetric Encryptor
+
+    #region Jwt Signature Handler
+    public static string WriteToken<TPrincipal>(this IJwtSignatureHandler<TPrincipal> handler, SecurityTokenDescriptor descriptor)
+        => handler.WriteToken(handler.CreateToken(descriptor));
+
+    public static string WriteToken<TPrincipal>(this IJwtSignatureHandler<TPrincipal> handler, TPrincipal subject, IAsymmetricTokenDescriptor descriptor)
+        => handler.WriteToken(handler.CreateToken(subject: subject, descriptor: descriptor));
+
+    public static string WriteToken<TPrincipal>(this IJwtSignatureHandler<TPrincipal> handler, TPrincipal subject, string issuer, string audience)
+        => handler.WriteToken(handler.CreateToken(subject: subject, issuer: issuer, audience: audience));
+    #endregion Jwt Signature Handler
+}