1 files changed, 99 insertions, 0 deletions
diff --git a/libs/VNLib.Plugins.Sessions.OAuth/src/OAuth2TokenFactory.cs b/libs/VNLib.Plugins.Sessions.OAuth/src/OAuth2TokenFactory.cs
new file mode 100644
index 0000000..b452e29
--- /dev/null
+++ b/libs/VNLib.Plugins.Sessions.OAuth/src/OAuth2TokenFactory.cs
@@ -0,0 +1,99 @@
+/*
+* Copyright (c) 2023 Vaughn Nugent
+* 
+* Library: VNLib
+* Package: VNLib.Plugins.Essentials.Sessions.OAuth
+* File: OAuth2TokenFactory.cs 
+*
+* OAuth2TokenFactory.cs is part of VNLib.Plugins.Essentials.Sessions.OAuth which is part of the larger 
+* VNLib collection of libraries and utilities.
+*
+* VNLib.Plugins.Essentials.Sessions.OAuth 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.Sessions.OAuth 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 VNLib.Hashing;
+using VNLib.Net.Http;
+using VNLib.Plugins.Sessions.Cache.Client;
+using VNLib.Plugins.Extensions.Loading;
+using VNLib.Plugins.Essentials.Extensions;
+
+
+namespace VNLib.Plugins.Sessions.OAuth
+{
+    [ConfigurationName(O2SessionProviderEntry.OAUTH2_CONFIG_KEY)]
+    internal sealed class OAuth2TokenFactory : ISessionIdFactory, IOauthSessionIdFactory
+    {
+        private readonly OAuth2SessionConfig _config;
+
+        public OAuth2TokenFactory(PluginBase plugin, IConfigScope config)
+        {
+            //Get the oauth2 config
+            _config = config.DeserialzeAndValidate<OAuth2SessionConfig>();
+        }
+
+        /*
+         * ID Regeneration is always false as OAuth2 sessions 
+         * do not allow dynamic ID updates, they require a 
+         * negotiation
+         */
+
+        bool ISessionIdFactory.RegenerationSupported => false;
+
+        /*
+         * Connections that do not identify themselves, via a token are 
+         * not valid. ID/Tokens must be created at once during 
+         * authentication stage.
+         */
+
+        bool ISessionIdFactory.RegenIdOnEmptyEntry => false;
+
+
+        ///<inheritdoc/>
+        int IOauthSessionIdFactory.MaxTokensPerApp => _config.MaxTokensPerApp;
+
+        ///<inheritdoc/>
+        TimeSpan IOauthSessionIdFactory.SessionValidFor => TimeSpan.FromSeconds(_config.TokenLifeTimeSeconds);
+
+        ///<inheritdoc/>
+        string IOauthSessionIdFactory.TokenType => "Bearer";
+
+        ///<inheritdoc/>
+        bool ISessionIdFactory.CanService(IHttpEvent entity)
+        {
+            return entity.Server.HasAuthorization(out _);
+        }
+
+        ///<inheritdoc/>
+        public GetTokenResult GenerateTokensAndId()
+        {
+            //Token is the raw value
+            string token =  RandomHash.GetRandomBase64(_config.AccessTokenSize);
+
+            //Return sessid result
+            return new(token, null);
+        }
+
+        string ISessionIdFactory.RegenerateId(IHttpEvent entity)
+        {
+            throw new NotSupportedException("Id regeneration is not supported for OAuth2 sessions");
+        }
+
+        string? ISessionIdFactory.TryGetSessionId(IHttpEvent entity)
+        {
+            return entity.Server.HasAuthorization(out string? token) ? token : null;
+        }
+    }
+}
+\ No newline at end of file