Saving

2023-02-19 00:43:43 +01:00
1 parent 9719a0c0fd
commit 1e66851113
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+using Microsoft.AspNetCore.Authorization;
+
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto.Generators;
+using Org.BouncyCastle.Crypto.Prng;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Security;
+using Org.BouncyCastle.X509;
+
+using PrivaPub.ClientModels;
+
+using System.Security.Cryptography.X509Certificates;
+using Org.BouncyCastle.Math;
+using PrivaPub.Models.User;
+using System.Security.Claims;
+
+namespace PrivaPub.Extensions
+{
+	public static class Extensions
+	{
+		public static string GetLogsConnectionString(this IConfiguration configuration) =>
+			configuration.GetSection("Serilog")
+						?.GetSection("WriteTo")
+						?.GetChildren()
+						?.First()
+						?.GetSection("Args")
+						?.GetSection("databaseUrl")
+						?.Value;
+
+		public static AuthorizationPolicy IsAdminPolicy() =>
+			new AuthorizationPolicyBuilder().RequireAuthenticatedUser()
+																			.RequireClaim(Policies.IsAdmin, true.ToString().ToLower())
+																			.RequireClaim(Policies.IsUser, true.ToString().ToLower())
+																			.RequireClaim(Policies.IsModerator, true.ToString().ToLower())
+																			.Build();
+
+		public static AuthorizationPolicy IsUserPolicy() =>
+			new AuthorizationPolicyBuilder().RequireAuthenticatedUser()
+																			.RequireClaim(Policies.IsUser, true.ToString().ToLower())
+																			.Build();
+
+		public static AuthorizationPolicy IsModeratorPolicy() =>
+		 new AuthorizationPolicyBuilder().RequireAuthenticatedUser()
+																			.RequireClaim(Policies.IsUser, true.ToString().ToLower())
+																			.RequireClaim(Policies.IsModerator, true.ToString().ToLower())
+																			.Build();
+
+		public static string GetHostWithPath(this HttpContext httpContext) =>
+			$"https://{httpContext.Request.Host}{httpContext.Request.Path}";
+
+		public static string GetHost(this HttpContext httpContext) =>
+			$"https://{httpContext.Request.Host}";
+
+		public static X509Certificate2 GetX509Certificate2(string certName)
+		{
+			var keypairgen = new RsaKeyPairGenerator();
+			keypairgen.Init(new KeyGenerationParameters(new SecureRandom(new CryptoApiRandomGenerator()), 512));
+
+			var keypair = keypairgen.GenerateKeyPair();
+
+			var gen = new X509V3CertificateGenerator();
+
+			var CN = new X509Name("CN=" + certName);
+			var SN = BigInteger.ProbablePrime(120, new Random());
+
+			gen.SetSerialNumber(SN);
+			gen.SetSubjectDN(CN);
+			gen.SetIssuerDN(CN);
+			gen.SetNotAfter(DateTime.MaxValue);
+			gen.SetNotBefore(DateTime.Now.Subtract(new TimeSpan(7, 0, 0, 0)));
+			gen.SetSignatureAlgorithm("MD5WithRSA");
+			gen.SetPublicKey(keypair.Public);
+
+			var newCert = gen.Generate(keypair.Private);
+
+			return new X509Certificate2(DotNetUtilities.ToX509Certificate((Org.BouncyCastle.X509.X509Certificate)newCert));
+		}
+
+		public static UserPolicyType GetHighestPolicy(this ClaimsPrincipal claimsPrincipal)
+		{
+			if (bool.Parse(claimsPrincipal.FindFirstValue(Policies.IsAdmin)))
+				return UserPolicyType.IsAdmin;
+
+			if (bool.Parse(claimsPrincipal.FindFirstValue(Policies.IsModerator)))
+				return UserPolicyType.IsModerator;
+
+			if (bool.Parse(claimsPrincipal.FindFirstValue(Policies.IsUser)))
+				return UserPolicyType.IsUser;
+
+			return UserPolicyType.IsUser;
+		}
+	}
+}