apewer-dotnet/Apewer.Source/Externals/MySql.Data-6.10.9/MySqlClient/Authentication/AuthenticationManager.cs

#if MYSQL_6_10

// Copyright © 2012, 2018, Oracle and/or its affiliates. All rights reserved.
//
// MySQL Connector/NET is licensed under the terms of the GPLv2
// <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most 
// MySQL Connectors. There are special exceptions to the terms and 
// conditions of the GPLv2 as it is applied to this software, see the 
// FLOSS License Exception
// <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
//
// This program is free software; you can redistribute it and/or modify 
// it under the terms of the GNU General Public License as published 
// by the Free Software Foundation; version 2 of the License.
//
// This program 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 General Public License 
// for more details.
//
// You should have received a copy of the GNU General Public License along 
// with this program; if not, write to the Free Software Foundation, Inc., 
// 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA

using System;
using System.Collections.Generic;
using System.Reflection;
using Externals.MySql.Data.MySqlClient;


namespace Externals.MySql.Data.MySqlClient.Authentication
{
    internal partial class AuthenticationPluginManager
    {
        private static readonly Dictionary<string, PluginInfo> Plugins = new Dictionary<string, PluginInfo>();

        static partial void AuthenticationManagerCtorConfiguration();

        static AuthenticationPluginManager()
        {
            Plugins["mysql_native_password"] = new PluginInfo("Externals.MySql.Data.MySqlClient.Authentication.MySqlNativePasswordPlugin");
            Plugins["sha256_password"] = new PluginInfo("Externals.MySql.Data.MySqlClient.Authentication.Sha256AuthenticationPlugin");
            Plugins["authentication_windows_client"] = new PluginInfo("Externals.MySql.Data.MySqlClient.Authentication.MySqlWindowsAuthenticationPlugin");
            Plugins["caching_sha2_password"] = new PluginInfo("Externals.MySql.Data.MySqlClient.Authentication.CachingSha2AuthenticationPlugin");

            AuthenticationManagerCtorConfiguration();
        }

        public static MySqlAuthenticationPlugin GetPlugin(string method)
        {
            if (!Plugins.ContainsKey(method))
                throw new MySqlException(String.Format(Resources.AuthenticationMethodNotSupported, method));
            return CreatePlugin(method);
        }

        private static MySqlAuthenticationPlugin CreatePlugin(string method)
        {
            PluginInfo pi = Plugins[method];

            try
            {
                Type t = Type.GetType(pi.Type);
                MySqlAuthenticationPlugin o = (MySqlAuthenticationPlugin)Activator.CreateInstance(t);
                return o;
            }
            catch (Exception e)
            {
                throw new MySqlException(String.Format(Resources.UnableToCreateAuthPlugin, method), e);
            }
        }
    }

    struct PluginInfo
    {
        public string Type;
        public Assembly Assembly;

        public PluginInfo(string type)
        {
            Type = type;
            Assembly = null;
        }
    }
}

#endif