diff options
author | vman <public@vaughnnugent.com> | 2022-11-20 15:27:58 -0500 |
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committer | vman <public@vaughnnugent.com> | 2022-11-20 15:27:58 -0500 |
commit | e4ce3ae25802471bea0ea99698fbb3f6ffdf7953 (patch) | |
tree | 03761a12731538e365cc46dcddf886991809dda2 /VNLib.Plugins.Essentials.SocialOauth/ClientRequestState.cs | |
parent | 7b3c8209eb78029ca74c1bac781409c0d6dd50ce (diff) |
Fix SocialOauth
Diffstat (limited to 'VNLib.Plugins.Essentials.SocialOauth/ClientRequestState.cs')
-rw-r--r-- | VNLib.Plugins.Essentials.SocialOauth/ClientRequestState.cs | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/VNLib.Plugins.Essentials.SocialOauth/ClientRequestState.cs b/VNLib.Plugins.Essentials.SocialOauth/ClientRequestState.cs new file mode 100644 index 0000000..2f35e48 --- /dev/null +++ b/VNLib.Plugins.Essentials.SocialOauth/ClientRequestState.cs @@ -0,0 +1,81 @@ +/* +* Copyright (c) 2022 Vaughn Nugent +* +* Library: VNLib +* Package: VNLib.Plugins.Essentials.SocialOauth +* File: ClientRequestState.cs +* +* ClientRequestState.cs is part of VNLib.Plugins.Essentials.SocialOauth which is part of the larger +* VNLib collection of libraries and utilities. +* +* VNLib.Plugins.Essentials.SocialOauth is free software: you can redistribute it and/or modify +* it under the terms of the GNU Affero General Public License as +* published by the Free Software Foundation, either version 3 of the +* License, or (at your option) any later version. +* +* VNLib.Plugins.Essentials.SocialOauth is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU Affero General Public License for more details. +* +* You should have received a copy of the GNU Affero General Public License +* along with this program. If not, see https://www.gnu.org/licenses/. +*/ + +using System; +using System.Security.Cryptography; + +using VNLib.Hashing; +using VNLib.Utils; +using VNLib.Utils.Memory; +using VNLib.Utils.Memory.Caching; + +namespace VNLib.Plugins.Essentials.SocialOauth +{ + internal sealed class ClientRequestState : ICacheable + { + private readonly ReadOnlyMemory<byte> _rawKey; + + /// <summary> + /// The raw nonce state bytes + /// </summary> + public ReadOnlyMemory<byte> State { get; private set; } + + public ClientRequestState(ReadOnlySpan<char> keyChar, int nonceBytes) + { + //Get browser id + _rawKey = Convert.FromHexString(keyChar); + RecomputeState(nonceBytes); + } + + /// <summary> + /// Recomputes a nonce state and signature for the current + /// connection + /// </summary> + /// <param name="nonceBytes">The size of the nonce (in bytes) to generate</param> + public void RecomputeState(int nonceBytes) + { + //Get random nonce buffer + State = RandomHash.GetRandomBytes(nonceBytes); + } + /// <summary> + /// Computes the signature of the supplied data based on the original + /// client state for this connection + /// </summary> + /// <param name="data"></param> + /// <returns></returns> + public ERRNO ComputeSignatureForClient(ReadOnlySpan<byte> data, Span<byte> output) + { + return HMACSHA512.TryHashData(_rawKey.Span, data, output, out int count) ? count : ERRNO.E_FAIL; + } + + public DateTime Expires { get; set; } + bool IEquatable<ICacheable>.Equals(ICacheable other) => ReferenceEquals(this, other); + void ICacheable.Evicted() + { + //Zero secrets on eviction + Memory.UnsafeZeroMemory(State); + Memory.UnsafeZeroMemory(_rawKey); + } + } +}
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