sam/Foxchat.NET
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add a bunch of authentication stuff

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sam 2024-05-19 17:20:45 +02:00
parent 996e59f49a
commit aca83fa1ef
Signed by: sam
GPG key ID: B4EF20DDE721CAA1
22 changed files with 681 additions and 28 deletions
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10
Foxchat.Core/Federation/RequestSigningService.cs
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@ -2,7 +2,7 @@ using System.Globalization;
using System.Security.Cryptography;
using System.Text;
using Foxchat.Core.Database;
using Microsoft.AspNetCore.WebUtilities;
using Foxchat.Core.Utils;
using NodaTime;
using NodaTime.Text;
using Serilog;
@ -28,7 +28,7 @@ public partial class RequestSigningService(ILogger logger, IClock clock, IDataba
var signature = formatter.CreateSignature(hash);
_logger.Debug("Generated signature for {Host} {RequestPath}", data.Host, data.RequestPath);
return WebEncoders.Base64UrlEncode(signature);
return Convert.ToBase64String(signature);
}
public bool VerifySignature(
@ -51,7 +51,11 @@ public partial class RequestSigningService(ILogger logger, IClock clock, IDataba
var plaintext = GeneratePlaintext(new SignatureData(time, host, requestPath, contentLength, userId));
var plaintextBytes = Encoding.UTF8.GetBytes(plaintext);
var hash = SHA256.HashData(plaintextBytes);
var signature = WebEncoders.Base64UrlDecode(encodedSignature);
if (!CryptoUtils.TryFromBase64String(encodedSignature, out var signature))
{
throw new FoxchatError.IncomingFederationError("Invalid base64 signature");
}
var deformatter = new RSAPKCS1SignatureDeformatter(rsa);
deformatter.SetHashAlgorithm(nameof(SHA256));