From ec99d0c948733ea379065e0ae37ab7702a1e4727 Mon Sep 17 00:00:00 2001
From: vnugent <public@vaughnnugent.com>
Date: Thu, 9 Mar 2023 01:48:39 -0500
Subject: Omega cache, session, and account provider complete overhaul

---
 .../src/UserManager.cs                             | 138 +++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 lib/VNLib.Plugins.Extensions.Loading/src/UserManager.cs

(limited to 'lib/VNLib.Plugins.Extensions.Loading/src/UserManager.cs')

diff --git a/lib/VNLib.Plugins.Extensions.Loading/src/UserManager.cs b/lib/VNLib.Plugins.Extensions.Loading/src/UserManager.cs
new file mode 100644
index 0000000..a3d667d
--- /dev/null
+++ b/lib/VNLib.Plugins.Extensions.Loading/src/UserManager.cs
@@ -0,0 +1,138 @@
+/*
+* Copyright (c) 2023 Vaughn Nugent
+* 
+* Library: VNLib
+* Package: VNLib.Plugins.Extensions.Loading
+* File: UserManager.cs 
+*
+* UserManager.cs is part of VNLib.Plugins.Extensions.Loading which is part of the larger 
+* VNLib collection of libraries and utilities.
+*
+* VNLib.Plugins.Extensions.Loading 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.Extensions.Loading 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.Threading;
+using System.Threading.Tasks;
+using System.Runtime.CompilerServices;
+
+using VNLib.Utils;
+using VNLib.Utils.Memory;
+using VNLib.Utils.Logging;
+using VNLib.Plugins.Essentials.Users;
+
+namespace VNLib.Plugins.Extensions.Loading.Users
+{
+    /// <summary>
+    /// Provides a singleton <see cref="IUserManager"/> service that dynamically loads 
+    /// a user manager for the plugin.
+    /// </summary>
+    [ConfigurationName("users", Required = false)]
+    public class UserManager : IUserManager
+    {
+        public const string USER_CUSTOM_ASSEMBLY = "custom_assembly";
+        public const string DEFAULT_USER_ASM = "VNLib.Plugins.Essentials.Users.dll";
+        public const string ONLOAD_METHOD_NAME = "OnPluginLoading";
+
+        private readonly IUserManager _dynamicLoader;
+
+        public UserManager(PluginBase plugin)
+        {
+            _dynamicLoader = LoadUserAssembly(plugin, DEFAULT_USER_ASM);
+        }
+
+        public UserManager(PluginBase plugin, IConfigScope config)
+        {
+            //Get the service configuration
+            string customAsm = config[USER_CUSTOM_ASSEMBLY].GetString() ?? DEFAULT_USER_ASM;
+            //Load the assembly
+            _dynamicLoader = LoadUserAssembly(plugin, customAsm);
+        }
+
+        private static IUserManager LoadUserAssembly(PluginBase plugin, string customAsm)
+        {
+            //Try to load a custom assembly
+            AssemblyLoader<IUserManager> loader = plugin.LoadAssembly<IUserManager>(customAsm);
+            try
+            {
+                //Try to get the onload method
+                Action<object>? onLoadMethod = loader.TryGetMethod<Action<object>>(ONLOAD_METHOD_NAME);
+
+                //Call the onplugin load method
+                onLoadMethod?.Invoke(plugin);
+
+                if (plugin.IsDebug())
+                {
+                    plugin.Log.Debug("Loading user manager from assembly {name}", loader.Resource.GetType().AssemblyQualifiedName);
+                }
+
+                //Return the loaded instance (may raise exception)
+                return loader.Resource;
+            }
+            catch
+            {
+                loader.Dispose();
+                throw;
+            }
+        }
+
+        ///<inheritdoc/>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public Task<IUser> CreateUserAsync(string userid, string emailAddress, ulong privilages, PrivateString passHash, CancellationToken cancellation = default)
+        {
+            return _dynamicLoader.CreateUserAsync(userid, emailAddress, privilages, passHash, cancellation);
+        }
+
+        ///<inheritdoc/>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public Task<IUser?> GetUserAndPassFromEmailAsync(string emailAddress, CancellationToken cancellationToken = default)
+        {
+            return _dynamicLoader.GetUserAndPassFromEmailAsync(emailAddress, cancellationToken);
+        }
+
+        ///<inheritdoc/>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public Task<IUser?> GetUserAndPassFromIDAsync(string userid, CancellationToken cancellation = default)
+        {
+            return _dynamicLoader.GetUserAndPassFromIDAsync(userid, cancellation);
+        }
+
+        ///<inheritdoc/>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public Task<long> GetUserCountAsync(CancellationToken cancellation = default)
+        {
+            return _dynamicLoader.GetUserCountAsync(cancellation);
+        }
+
+        ///<inheritdoc/>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public Task<IUser?> GetUserFromEmailAsync(string emailAddress, CancellationToken cancellationToken = default)
+        {
+            return _dynamicLoader.GetUserFromEmailAsync(emailAddress, cancellationToken);
+        }
+
+        ///<inheritdoc/>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public Task<IUser?> GetUserFromIDAsync(string userId, CancellationToken cancellationToken = default)
+        {
+            return _dynamicLoader.GetUserFromIDAsync(userId, cancellationToken);
+        }
+        ///<inheritdoc/>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public Task<ERRNO> UpdatePassAsync(IUser user, PrivateString newPass, CancellationToken cancellation = default)
+        {
+            return _dynamicLoader.UpdatePassAsync(user, newPass, cancellation);
+        }
+    }
+}
\ No newline at end of file
-- 
cgit