2 files changed, 189 insertions, 0 deletions
diff --git a/lib/VNLib.Plugins.Extensions.Loading/src/Users/UserManager.cs b/lib/VNLib.Plugins.Extensions.Loading/src/Users/UserManager.cs
new file mode 100644
index 0000000..3e9dbde
--- /dev/null
+++ b/lib/VNLib.Plugins.Extensions.Loading/src/Users/UserManager.cs
@@ -0,0 +1,137 @@
+/*
+* 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 VNLib.Utils;
+using VNLib.Utils.Memory;
+using VNLib.Utils.Logging;
+using VNLib.Plugins.Essentials.Users;
+using VNLib.Plugins.Essentials.Accounts;
+
+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";
+
+        private readonly IUserManager _dynamicLoader;
+
+        public UserManager(PluginBase plugin)
+        {
+            //Load the default user assembly
+            _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
+            IUserManager externManager = plugin.CreateServiceExternal<IUserManager>(customAsm);    
+
+            if (plugin.IsDebug())
+            {
+                plugin.Log.Debug("Loading user manager from assembly {name}", externManager.GetType().AssemblyQualifiedName);
+            }
+
+            return externManager;
+        }
+
+        /// <summary>
+        /// Gets the underlying <see cref="IUserManager"/> that was dynamically loaded.
+        /// </summary>
+        /// <returns>The user manager instance</returns>
+        public IUserManager InternalManager => _dynamicLoader;
+
+        ///<inheritdoc/>
+        public Task<IUser> CreateUserAsync(IUserCreationRequest creation, string? userId, CancellationToken cancellation = default)
+        {
+            return _dynamicLoader.CreateUserAsync(creation, userId, cancellation);
+        }
+
+        ///<inheritdoc/>
+        public IPasswordHashingProvider? GetHashProvider()
+        {
+            return _dynamicLoader.GetHashProvider();
+        }
+
+        ///<inheritdoc/>
+        public Task<long> GetUserCountAsync(CancellationToken cancellation = default)
+        {
+            return _dynamicLoader.GetUserCountAsync(cancellation);
+        }
+
+        ///<inheritdoc/>
+        public Task<IUser?> GetUserFromEmailAsync(string emailAddress, CancellationToken cancellationToken = default)
+        {
+            return _dynamicLoader.GetUserFromEmailAsync(emailAddress, cancellationToken);
+        }
+
+        ///<inheritdoc/>
+        public Task<IUser?> GetUserFromIDAsync(string userId, CancellationToken cancellationToken = default)
+        {
+            return _dynamicLoader.GetUserFromIDAsync(userId, cancellationToken);
+        }
+
+        ///<inheritdoc/>
+        public Task<PrivateString?> RecoverPasswordAsync(IUser user, CancellationToken cancellation = default)
+        {
+            return _dynamicLoader.RecoverPasswordAsync(user, cancellation);
+        }
+
+        ///<inheritdoc/>
+        public Task<ERRNO> UpdatePasswordAsync(IUser user, PrivateString newPass, CancellationToken cancellation = default)
+        {
+            return _dynamicLoader.UpdatePasswordAsync(user, newPass, cancellation);
+        }
+
+        ///<inheritdoc/>
+        public Task<ERRNO> ValidatePasswordAsync(IUser user, PrivateString password, PassValidateFlags flags, CancellationToken cancellation = default)
+        {
+            return _dynamicLoader.ValidatePasswordAsync(user, password, flags, cancellation);
+        }
+
+        ///<inheritdoc/>
+        public string ComputeSafeUserId(string input)
+        {
+            return _dynamicLoader.ComputeSafeUserId(input);
+        }
+    }
+}
+\ No newline at end of file
diff --git a/lib/VNLib.Plugins.Extensions.Loading/src/Users/UserPassValResult.cs b/lib/VNLib.Plugins.Extensions.Loading/src/Users/UserPassValResult.cs
new file mode 100644
index 0000000..ccfc62d
--- /dev/null
+++ b/lib/VNLib.Plugins.Extensions.Loading/src/Users/UserPassValResult.cs
@@ -0,0 +1,52 @@
+/*
+* Copyright (c) 2023 Vaughn Nugent
+* 
+* Library: VNLib
+* Package: VNLib.Plugins.Extensions.Loading
+* File: UserPassValResult.cs 
+*
+* UserPassValResult.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.Threading;
+
+using VNLib.Utils.Memory;
+using VNLib.Plugins.Essentials.Users;
+
+namespace VNLib.Plugins.Extensions.Loading.Users
+{
+    /// <summary>
+    /// Result codes for <see cref="IUserManager.ValidatePasswordAsync(IUser, PrivateString, PassValidateFlags, CancellationToken)"/>
+    /// </summary>
+    public static class UserPassValResult
+    {
+        /// <summary>
+        /// The passwords matched
+        /// </summary>
+        public const int Success = 1;
+
+        /// <summary>
+        /// Failed because the user did not have a password stored
+        /// </summary>
+        public const int Null = 0;
+
+        /// <summary>
+        /// Failed because the passwords did not match
+        /// </summary>
+        public const int Failed = -1;
+    }
+}
+\ No newline at end of file