Equivalent to phpinfo() in ASP.NET

Costas

Administrator
Staff member

1st solution



An empty page with this header should do the trick:

JavaScript:
<!--http://stackoverflow.com/a/3220701 
test.aspx
-->
<%@ Page Trace="true"  Language="C#" 
    ContentType="text/html" ResponseEncoding="utf-8" %>




2nd solution



aspnetsysinfo - https://code.google.com/p/aspnetsysinfo/

JavaScript:
//test.aspx
<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Runtime.InteropServices" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Reflection" %>
<%@ Import Namespace="System.Collections" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>System Information</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <style type="text/css">
      a:link {color: #000099; text-decoration: none; background-color: #ffffff;}
      a:hover {text-decoration: underline;}
      body {font-family: Georgia, "Times New Roman", Times, serif; text-align: center}
      table {margin-left: auto; margin-right: auto; text-align: left; border-collapse: collapse; border:0;}
      td, th {border: 1px solid #000000; font-size: 75%; vertical-align: baseline;}
      .title {font-size: 150%;}
      .section {text-align: center;}
      .header {text-align: center; background-color: #9999cc; font-weight: bold; color: #000000;}
      .name {background-color: #ccccff; font-weight: bold; color: #000000;}
      .value {background-color: #cccccc; color: #000000;}
      .value_true {background-color: #cccccc; color: #00ff00;}
      .value_false {background-color: #cccccc; color: #ff0000;}
    </style>
</head>
<body>
    <div id="divCenter" class="center" runat="server"></div>
</body>
</html>
<script runat="server">
    #region Assistance Class
    public class SystemInfo
    {
        [DllImport("kernel32", CharSet = CharSet.Auto, SetLastError = true)]
        internal static extern void GetSystemInfo(ref CpuInfo cpuinfo);
        [DllImport("kernel32", CharSet = CharSet.Auto, SetLastError = true)]
        internal static extern void GlobalMemoryStatus(ref MemoryInfo meminfo);

        [StructLayout(LayoutKind.Sequential)]
        public struct CpuInfo
        {
            public uint dwOemId;
            public uint dwPageSize;
            public uint lpMinimumApplicationAddress;
            public uint lpMaximumApplicationAddress;
            public uint dwActiveProcessorMask;
            public uint dwNumberOfProcessors;
            public uint dwProcessorType;
            public uint dwAllocationGranularity;
            public uint dwProcessorLevel;
            public uint dwProcessorRevision;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct MemoryInfo
        {
            public uint dwLength;
            public uint dwMemoryLoad;
            public uint dwTotalPhys;
            public uint dwAvailPhys;
            public uint dwTotalPageFile;
            public uint dwAvailPageFile;
            public uint dwTotalVirtual;
            public uint dwAvailVirtual;
        }

        public static MemoryInfo Memory
        {
            get
            {
                MemoryInfo obj = new MemoryInfo();
                GlobalMemoryStatus(ref obj);
                return obj;
            }
        }

        public static CpuInfo Cpu
        {
            get
            {
                CpuInfo obj = new CpuInfo();
                GetSystemInfo(ref obj);
                return obj;
            }
        }

    }
    #endregion

    #region Get Information Function

    private DataTable GetSystemInfo()
    {
        DataTable table = GenerateDataTable("System Information");
        //	Server Name
        Assign(table, "Server Name", Server.MachineName);
        Assign(table, "Server IP", Request.ServerVariables["LOCAl_ADDR"]);
        Assign(table, "Server Domain", Request.ServerVariables["Server_Name"]);
        Assign(table, "Server Port", Request.ServerVariables["Server_Port"]);
        //	Web Server
        Assign(table, "Web Server Version", Request.ServerVariables["Server_SoftWare"]);
        //	Path
        Assign(table, "Virtual Request Path", Request.FilePath);
        Assign(table, "Physical Request Path", Request.PhysicalPath);
        Assign(table, "Virtual Application Root Path", Request.ApplicationPath);
        Assign(table, "Physical Application Root Path", Request.PhysicalApplicationPath);
        //	Platform
        OperatingSystem os = Environment.OSVersion;
        string text = string.Empty;
        switch (os.Platform)
        {
            case PlatformID.Win32Windows:
                switch (os.Version.Minor)
                {
                    case 0:
                        text = "Microsoft Windows 95";
                        break;
                    case 10:
                        text = "Microsoft Windows 98";
                        break;
                    case 90:
                        text = "Microsoft Windows Millennium Edition";
                        break;
                    default:
                        text = "Microsoft Windows 95 or later";
                        break;
                }
                break;
            case PlatformID.Win32NT:
                switch (os.Version.Major)
                {
                    case 3:
                        text = "Microsoft Windows NT 3.51";
                        break;
                    case 4:
                        text = "Microsoft Windows NT 4.0";
                        break;
                    case 5:
                        switch (os.Version.Minor)
                        {
                            case 0:
                                text = "Microsoft Windows 2000";
                                break;
                            case 1:
                                text = "Microsoft Windows XP";
                                break;
                            case 2:
                                text = "Microsoft Windows 2003";
                                break;
                            default:
                                text = "Microsoft NT 5.x";
                                break;
                        }
                        break;
                    case 6:
                        text = "Microsoft Windows Vista or 2008 Server";
                        break;
                }
                break;
            default:
                if ((int)os.Platform > 3)
                {
                    string name = "/proc/version";
                    if (File.Exists(name))
                    {
                        using (StreamReader reader = new StreamReader(name))
                        {
                            text = reader.ReadToEnd().Trim();
                        }
                    }
                }
                break;
        }
        text = string.Format("{0} -- {1}", text, os.ToString());
        Assign(table, "Operating System", text);
        Assign(table, "Operating System Installation Directory", Environment.SystemDirectory);
        Assign(table, ".Net Version", Environment.Version.ToString());
        Assign(table, ".Net Language", System.Globalization.CultureInfo.InstalledUICulture.EnglishName);
        Assign(table, "Server Current Time", DateTime.Now.ToString());
        Assign(table, "System Uptime", TimeSpan.FromMilliseconds(Environment.TickCount).ToString());
        Assign(table, "Script Timeout", TimeSpan.FromSeconds(Server.ScriptTimeout).ToString());
        return table;
    }

    private void GetSystemStorageInfo_DriveInfo(DataTable table)
    {
        try
        {
            Type typeDriveInfo = Type.GetType("System.IO.DriveInfo");
            MethodInfo get_drives = typeDriveInfo.GetMethod("GetDrives");
            object result = get_drives.Invoke(null, null);

            foreach (object o in (IEnumerable)result)
            {
                try
                {
                    //  Use reflection to call DriveInfo.GetProperties() to make 1.x compiler don't complain.
                    PropertyInfo[] props = typeDriveInfo.GetProperties();
                    bool is_ready = (bool)typeDriveInfo.GetProperty("IsReady").GetValue(o, null);
                    string name = string.Empty;
                    string volume_label = string.Empty;
                    string drive_format = string.Empty;
                    string drive_type = string.Empty;
                    ulong total_free_space = 0;
                    ulong total_space = 0;
                    foreach (PropertyInfo prop in props)
                    {
                        switch (prop.Name)
                        {
                            case "Name":
                                name = (string)prop.GetValue(o, null);
                                break;
                            case "VolumeLabel":
                                if (is_ready)
                                    volume_label = (string)prop.GetValue(o, null);
                                break;
                            case "DriveFormat":
                                if (is_ready)
                                    drive_format = (string)prop.GetValue(o, null);
                                break;
                            case "DriveType":
                                drive_type = prop.GetValue(o, null).ToString();
                                break;
                            case "TotalFreeSpace":
                                if (is_ready)
                                    total_free_space = (ulong)(long)prop.GetValue(o, null);
                                break;
                            case "TotalSize":
                                if (is_ready)
                                    total_space = (ulong)(long)prop.GetValue(o, null);
                                break;
                        }
                    }

                    string label = string.Empty;
                    string size = string.Empty;

                    if (is_ready)
                    {
                        label = string.Format("{0} - <{1}> [{2}] - {3,-10}", name, volume_label, drive_format, drive_type);
                        if (total_space > 0 && total_space != ulong.MaxValue && total_space != int.MaxValue)
                        {
                            size = string.Format("Free {0} / Total {1}", FormatNumber(total_free_space), FormatNumber(total_space));
                        }
                    }
                    else
                    {
                        label = string.Format("{0} {1,-10}", name, drive_type);
                    }

                    Assign(table, label, size);
                }
                catch (Exception) { }
            }
        }
        catch (Exception) { }
    }
    private void GetSystemStorageInfo_WMI(DataTable table)
    {
        try
        {
            //  Use reflection to call WMI to make Mono compiler don't complain about assembly reference
            Assembly dSystemManangement = Assembly.Load("System.Management, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A");
            if (dSystemManangement == null) return;

            Type tManagementObjectSearcher = dSystemManangement.GetType("System.Management.ManagementObjectSearcher");
            if (dSystemManangement == null) return;

            MethodInfo mGet = tManagementObjectSearcher.GetMethod("Get", new Type[] { });

            ConstructorInfo ctor = tManagementObjectSearcher.GetConstructor(new Type[] { typeof(string) });

            object searcher = ctor.Invoke(new object[] { "Select * From Win32_LogicalDisk" });
            if (dSystemManangement == null) return;

            object disks = mGet.Invoke(searcher, null);

            //  ManagementObject
            Type tManagementObject = dSystemManangement.GetType("System.Management.ManagementObject");

            foreach (object disk in (IEnumerable)disks)
            {
                try
                {
                    PropertyInfo prop = tManagementObject.GetProperty("Item", new Type[] { typeof(string) });
                    uint i_drive_type = (uint)prop.GetValue(disk, new object[] { "DriveType" });
                    string drive_type = string.Empty;
                    switch (i_drive_type)
                    {
                        case 1:
                            drive_type = "No Root Directory";
                            break;
                        case 2:
                            drive_type = "Removable Disk";
                            break;
                        case 3:
                            drive_type = "Local Disk";
                            break;
                        case 4:
                            drive_type = "Network Drive";
                            break;
                        case 5:
                            drive_type = "Compact Disc";
                            break;
                        case 6:
                            drive_type = "RAM Disk";
                            break;
                        default:
                            drive_type = "Unknown";
                            break;
                    }
                    string name = prop.GetValue(disk, new object[] { "Name" }) as string;
                    string volume_label = prop.GetValue(disk, new object[] { "VolumeName" }) as string;
                    string filesystem = prop.GetValue(disk, new object[] { "FileSystem" }) as string;

                    string free_space = string.Empty;
                    try { free_space = FormatNumber((ulong)prop.GetValue(disk, new object[] { "FreeSpace" })); }
                    catch (Exception) { }

                    string total_space = string.Empty;
                    try { total_space = FormatNumber((ulong)prop.GetValue(disk, new object[] { "Size" })); }
                    catch (Exception) { }

                    string left = string.Format("{0} - <{1}> [{2}] - {3,-10}",
							name,
							volume_label,
							filesystem,
							drive_type
						);

                    string right = ((free_space == null || free_space == "") ? string.Empty : string.Format("Free {0} / Total {1}", free_space, total_space));

                    Assign(table, left, right);
                }
                catch (Exception exception) { Assign(table, "Exception Occurs", exception.ToString()); }
            }
        }
        catch (Exception exception) { Assign(table, "Exception Occurs", exception.ToString()); }
    }
    private DataTable GetSystemStorageInfo()
    {
        DataTable table = GenerateDataTable("Storage Information");

        try { Assign(table, "Logical Driver Information", string.Join(", ", Directory.GetLogicalDrives())); }
        catch (Exception) { }

        if (Environment.Version.Major >= 2)
        {
            GetSystemStorageInfo_DriveInfo(table);
        }
        else
        {
            if (Environment.OSVersion.Platform == PlatformID.Win32NT)
            {
                GetSystemStorageInfo_WMI(table);
            }
        }

        return table;
    }
    private void GetSystemMemoryInfo_proc(DataTable table)
    {
        string name = "/proc/meminfo";
        if (File.Exists(name))
        {
            using (StreamReader reader = new StreamReader(name, Encoding.ASCII))
            {
                Hashtable ht = new Hashtable();
                string line = string.Empty;
                while ((line = reader.ReadLine()) != null)
                {
                    string[] item = line.Split(":".ToCharArray());
                    if (item.Length == 2)
                    {
                        string k = item[0].Trim();
                        string v = item[1].Trim();
                        ht.Add(k, v);
                    }
                }
                Assign(table, "Physical Memory Size", string.Format("{0}", ht["MemTotal"]));
                Assign(table, "Physical Free Memory Size", string.Format("{0}", ht["MemFree"]));
                Assign(table, "Swap Total Size", string.Format("{0}", ht["SwapTotal"]));
                Assign(table, "Swap Free Size", string.Format("{0}", ht["SwapFree"]));
            }
        }
    }
    private DataTable GetSystemMemoryInfo()
    {
        DataTable table = GenerateDataTable("Memory Information"); ;
        Assign(table, "Current Working Set", FormatNumber((ulong)Environment.WorkingSet));
        try
        {
            if (Environment.OSVersion.Platform == PlatformID.Win32NT)
            {
                SystemInfo.MemoryInfo memory = SystemInfo.Memory;
                Assign(table, "Physical Memory Size", FormatNumber(memory.dwTotalPhys));
                Assign(table, "Physical Free Memory Size", FormatNumber(memory.dwAvailPhys));
                Assign(table, "PageFile Size", FormatNumber(memory.dwTotalPageFile));
                Assign(table, "Available PageFile Size", FormatNumber(memory.dwAvailPageFile));
                Assign(table, "Virtual Memory Size", FormatNumber(memory.dwTotalVirtual));
                Assign(table, "Available Memory Size", FormatNumber(memory.dwAvailVirtual));
                Assign(table, "Memory Load", string.Format("{0} %", memory.dwMemoryLoad.ToString("N")));
            }
            else if ((int)Environment.OSVersion.Platform > 3)
            {
                GetSystemMemoryInfo_proc(table);
            }
        }
        catch (Exception) { }
        return table;
    }
    private void GetSystemProcessorInfo_WMI(DataTable table)
    {
        //  Use reflection to call WMI to make Mono compiler don't complain about assembly reference
        Assembly dSystemManangement = Assembly.Load("System.Management, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A");
        if (dSystemManangement == null) return;

        Type tManagementObjectSearcher = dSystemManangement.GetType("System.Management.ManagementObjectSearcher");
        if (dSystemManangement == null) return;

        MethodInfo mGet = tManagementObjectSearcher.GetMethod("Get", new Type[] { });

        ConstructorInfo ctor = tManagementObjectSearcher.GetConstructor(new Type[] { typeof(string) });

        object searcher = ctor.Invoke(new object[] { "Select * From Win32_Processor" });
        if (dSystemManangement == null) return;

        object processors = mGet.Invoke(searcher, null);

        //  ManagementObject
        Type tManagementObject = dSystemManangement.GetType("System.Management.ManagementObject");
        foreach (object processor in (IEnumerable)processors)
        {
            try
            {
                try
                {
                    PropertyInfo prop = tManagementObject.GetProperty("Item", new Type[] { typeof(string) });
                    StringBuilder sb = new StringBuilder();
                    //  Unique ID
                    string name = (string)prop.GetValue(processor, new object[] { "Name" });
                    sb.Append(name);
                    //  Clock Speed
                    uint clock_speed = (uint)prop.GetValue(processor, new object[] { "CurrentClockSpeed" });
                    //  Max Clock Speed
                    uint max_clock_speed = (uint)prop.GetValue(processor, new object[] { "MaxClockSpeed" });
                    sb.AppendFormat(" - {0} MHz / {1} MHz", clock_speed, max_clock_speed);
                    //  Current Voltage
                    ushort i_current_voltage = (ushort)prop.GetValue(processor, new object[] { "CurrentVoltage" });
                    double current_voltage = 0;
                    if (((uint)i_current_voltage & 0x80) == 0)
                    {
                        current_voltage = (double)(i_current_voltage & 0x7F) / 10.0;
                    }
                    else
                    {
                        try
                        {
                            uint caps = (uint)prop.GetValue(processor, new object[] { "VoltageCaps" });
                            switch (caps & 0xF)
                            {
                                case 1:
                                    current_voltage = 5;
                                    break;
                                case 2:
                                    current_voltage = 3.3;
                                    break;
                                case 3:
                                    current_voltage = 2.9;
                                    break;
                            }
                        }
                        catch (Exception) { }
                    }
                    if (current_voltage > 0)
                    {
                        sb.AppendFormat(" - {0}v", current_voltage);
                    }
                    //  Load Percentage 
                    ushort load_percentage = (ushort)prop.GetValue(processor, new object[] { "LoadPercentage" });
                    sb.AppendFormat(" - Load = {0} %", load_percentage);
                    Assign(table, "Processor", sb.ToString());
                }
                catch (Exception exception) { Assign(table, "Exception Occurs", exception.ToString()); }
            }
            catch (Exception) { }
        }
    }
    private void GetSystemProcessorInfo_proc(DataTable table)
    {
        string name = "/proc/cpuinfo";
        if (File.Exists(name))
        {
            using (StreamReader reader = new StreamReader(name, Encoding.ASCII))
            {
                ArrayList processors = new ArrayList();
                Hashtable ht = new Hashtable();
                string line = string.Empty;
                while ((line = reader.ReadLine()) != null)
                {
                    if (line.Trim().Length == 0)
                    {
                        processors.Add(ht);
                        ht = new Hashtable();
                    }
                    string[] item = line.Split(":".ToCharArray());
                    if (item.Length == 2)
                    {
                        string k = item[0].Trim();
                        string v = item[1].Trim();
                        ht.Add(k, v);
                    }
                }

                foreach (Hashtable processor in processors)
                {
                    string n = string.Format("Processor {0}", processor["processor"]);
                    string v = string.Format("{0}{1}", processor["model name"],
											 (processor["cpu MHz"] != null) ? string.Format(" - {0} MHz", processor["cpu MHz"]) : string.Empty);
                    Assign(table, n, v);
                }
            }
        }
    }
    private DataTable GetSystemProcessorInfo()
    {
        DataTable table = GenerateDataTable("Processor Information");
        try
        {
            if (Environment.OSVersion.Platform == PlatformID.Win32NT)
            {
                Assign(table, "Number of Processors", Environment.GetEnvironmentVariable("NUMBER_OF_PROCESSORS"));
                Assign(table, "Processor Id", Environment.GetEnvironmentVariable("PROCESSOR_IDENTIFIER"));
                SystemInfo.CpuInfo cpu = SystemInfo.Cpu;
                Assign(table, "Processor Type", cpu.dwProcessorType.ToString());
                Assign(table, "Processor Level", cpu.dwProcessorLevel.ToString());
                Assign(table, "Processor OEM Id", cpu.dwOemId.ToString());
                Assign(table, "Page Size", cpu.dwPageSize.ToString());
                GetSystemProcessorInfo_WMI(table);
            }
            else if ((int)Environment.OSVersion.Platform > 3)
            {
                GetSystemProcessorInfo_proc(table);
            }
        }
        catch (Exception) { }
        return table;
    }

    private DataTable GetServerVariables()
    {
        DataTable table = GenerateDataTable("Server Variables");
        foreach (string key in Request.ServerVariables.AllKeys)
        {
            Assign(table, key, Request.ServerVariables[key]);
        }
        return table;
    }
    private DataTable GetEnvironmentVariables()
    {
        DataTable table = GenerateDataTable("Environment Variables");
        foreach (DictionaryEntry de in System.Environment.GetEnvironmentVariables())
        {
            Assign(table, de.Key.ToString(), de.Value.ToString());
        }
        return table;
    }

    private DataTable GetSystemObjectInfo()
    {
        DataTable table = GenerateDataTable("System COM Component Information");
        Assign(table, "Adodb.Connection", TestObject("Adodb.Connection").ToString());
        Assign(table, "Adodb.RecordSet", TestObject("Adodb.RecordSet").ToString());
        Assign(table, "Adodb.Stream", TestObject("Adodb.Stream").ToString());
        Assign(table, "Scripting.FileSystemObject", TestObject("Scripting.FileSystemObject").ToString());
        Assign(table, "Microsoft.XMLHTTP", TestObject("Microsoft.XMLHTTP").ToString());
        Assign(table, "WScript.Shell", TestObject("WScript.Shell").ToString());
        Assign(table, "MSWC.AdRotator", TestObject("MSWC.AdRotator").ToString());
        Assign(table, "MSWC.BrowserType", TestObject("MSWC.BrowserType").ToString());
        Assign(table, "MSWC.NextLink", TestObject("MSWC.NextLink").ToString());
        Assign(table, "MSWC.Tools", TestObject("MSWC.Tools").ToString());
        Assign(table, "MSWC.Status", TestObject("MSWC.Status").ToString());
        Assign(table, "MSWC.Counters", TestObject("MSWC.Counters").ToString());
        Assign(table, "IISSample.ContentRotator", TestObject("IISSample.ContentRotator").ToString());
        Assign(table, "IISSample.PageCounter", TestObject("IISSample.PageCounter").ToString());
        Assign(table, "MSWC.PermissionChecker", TestObject("MSWC.PermissionChecker").ToString());
        return table;
    }
    private DataTable GetMailObjectInfo()
    {
        DataTable table = GenerateDataTable("Mail COM Component Information");
        Assign(table, "JMail.SMTPMail", TestObject("JMail.SMTPMail").ToString());
        Assign(table, "JMail.Message", TestObject("JMail.Message").ToString());
        Assign(table, "CDONTS.NewMail", TestObject("CDONTS.NewMail").ToString());
        Assign(table, "CDO.Message", TestObject("CDO.Message").ToString());
        Assign(table, "Persits.MailSender", TestObject("Persits.MailSender").ToString());
        Assign(table, "SMTPsvg.Mailer", TestObject("SMTPsvg.Mailer").ToString());
        Assign(table, "DkQmail.Qmail", TestObject("DkQmail.Qmail").ToString());
        Assign(table, "SmtpMail.SmtpMail.1", TestObject("SmtpMail.SmtpMail.1").ToString());
        Assign(table, "Geocel.Mailer.1", TestObject("Geocel.Mailer.1").ToString());
        return table;
    }
    private DataTable GetUploadObjectInfo()
    {
        DataTable table = GenerateDataTable("Upload COM Component Information");
        Assign(table, "LyfUpload.UploadFile", TestObject("LyfUpload.UploadFile").ToString());
        Assign(table, "Persits.Upload", TestObject("Persits.Upload").ToString());
        Assign(table, "Ironsoft.UpLoad", TestObject("Ironsoft.UpLoad").ToString());
        Assign(table, "aspcn.Upload", TestObject("aspcn.Upload").ToString());
        Assign(table, "SoftArtisans.FileUp", TestObject("SoftArtisans.FileUp").ToString());
        Assign(table, "SoftArtisans.FileManager", TestObject("SoftArtisans.FileManager").ToString());
        Assign(table, "Dundas.Upload", TestObject("Dundas.Upload").ToString());
        Assign(table, "w3.upload", TestObject("w3.upload").ToString());
        return table;
    }
    private DataTable GetGraphicsObjectInfo()
    {
        DataTable table = GenerateDataTable("Graphics COM Component Information");
        Assign(table, "SoftArtisans.ImageGen", TestObject("SoftArtisans.ImageGen").ToString());
        Assign(table, "W3Image.Image", TestObject("W3Image.Image").ToString());
        Assign(table, "Persits.Jpeg", TestObject("Persits.Jpeg").ToString());
        Assign(table, "XY.Graphics", TestObject("XY.Graphics").ToString());
        Assign(table, "Ironsoft.DrawPic", TestObject("Ironsoft.DrawPic").ToString());
        Assign(table, "Ironsoft.FlashCapture", TestObject("Ironsoft.FlashCapture").ToString());
        return table;
    }
    private DataTable GetOtherObjectInfo()
    {
        DataTable table = GenerateDataTable("Other COM Component Information");
        Assign(table, "dyy.zipsvr", TestObject("dyy.zipsvr").ToString());
        Assign(table, "hin2.com_iis", TestObject("hin2.com_iis").ToString());
        Assign(table, "Socket.TCP", TestObject("Socket.TCP").ToString());
        return table;
    }

    private DataTable GetSessionInfo()
    {
        DataTable table = GenerateDataTable("Session Information");
        Assign(table, "Session Count", Session.Contents.Count.ToString());
        Assign(table, "Application Count", Application.Contents.Count.ToString());
        return table;
    }
    private DataTable GetRequestHeaderInfo()
    {
        DataTable table = GenerateDataTable("Request Headers");
        foreach (string key in Request.Headers.AllKeys)
        {
            Assign(table, key, Request.Headers[key]);
        }
        return table;
    }

    #endregion

    #region Helper Methods

    private string FormatNumber(ulong value)
    {
        if (value < 4*1024){
            return string.Format("{0} Bytes", value);
        }
        else if (value < (long)4 * 1024 * 1024)
        {
            return string.Format("{0} KB", (value / (double)((long)1024)).ToString("N"));
        }
        else if (value < (long)4 * 1024 * 1024 * 1024)
        {
            return string.Format("{0} MB", (value / (double)((long)1024 * 1024)).ToString("N"));
        }
        else if (value < (long)4 * 1024 * 1024 * 1024 * 1024)
        {
            return string.Format("{0} GB", (value / (double)((long)1024 * 1024 * 1024)).ToString("N"));
        }
        else
        {
            return string.Format("{0} TB", (value / (double)((long)1024 * 1024 * 1024 * 1024)).ToString("N"));
        }
    }

    private DataTable GenerateDataTable(string name)
    {
        DataTable table = new DataTable(name);
        table.Columns.Add("Name", typeof(string));
        table.Columns.Add("Value", typeof(string));
        return table;
    }

    private bool TestObject(string progID)
    {
        try
        {
            Server.CreateObject(progID);
            return true;
        }
        catch (Exception)
        {
            return false;
        }
    }

    private void Assign(DataTable table, string name, string value)
    {
        DataRow row = table.NewRow();
        row["Name"] = name;
        row["Value"] = value;
        table.Rows.Add(row);
    }

    private void LoadInformation(DataTable table)
    {
        DataGrid grid = new DataGrid();
        BoundColumn col;

        col = new BoundColumn();
        col.DataField = "Name";
        col.HeaderText = "Name";
        col.ItemStyle.CssClass = "name";
        grid.Columns.Add(col);

        col = new BoundColumn();
        col.DataField = "Value";
        col.HeaderText = "Value";
        col.ItemStyle.CssClass = "value";
        grid.Columns.Add(col);

        grid.AutoGenerateColumns = false;
        grid.HeaderStyle.CssClass = "header";
        grid.DataSource = new DataView(table);
        grid.DataBind();
        
        
        foreach(DataGridItem item in grid.Items)
        {
            if(item.Cells.Count == 2){
                TableCell cell = item.Cells[1];
                //  change true/false style
                switch (cell.Text.ToLower())
                {
                    case "true":
                        cell.CssClass = "value_true";
                        break;
                    case "false":
                        cell.CssClass = "value_false";
                        break;
                }
                //  wrap 
 for text contain newline.
                if (cell.Text.IndexOf(Environment.NewLine) >= 0)
                {
                    cell.Text = string.Format("
{0}</pre>", cell.Text);
                }
            }
        }
        

        HtmlGenericControl title = new HtmlGenericControl("h1");
        title.InnerText = Server.HtmlEncode(table.TableName);
        title.Attributes.Add("class", "title");

        HtmlGenericControl div = new HtmlGenericControl("div");
        div.Attributes.Add("class", "section");
        div.Controls.Add(new HtmlGenericControl("p"));
        div.Controls.Add(title);
        div.Controls.Add(grid);
        div.Controls.Add(new HtmlGenericControl("p"));

        divCenter.Controls.Add(div);
    }

    #endregion

    protected void Page_Load(object sender, EventArgs e)
    {
        LoadInformation(GetSystemInfo());
        LoadInformation(GetSystemProcessorInfo());
        LoadInformation(GetSystemMemoryInfo());
        LoadInformation(GetSystemStorageInfo());
        LoadInformation(GetRequestHeaderInfo());
        LoadInformation(GetServerVariables());
        LoadInformation(GetEnvironmentVariables());
        LoadInformation(GetSessionInfo());
        LoadInformation(GetSystemObjectInfo());
        LoadInformation(GetMailObjectInfo());
        LoadInformation(GetUploadObjectInfo());
        LoadInformation(GetGraphicsObjectInfo());
        LoadInformation(GetOtherObjectInfo());
    }
</script>
 
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