.NET General

DotNetNuke Password Decrypting with Code

Wayne Larimore — Mon, 12 Sep 2011 16:18:10 GMT

Recently, I had to decrypt a password that had been forgotten on a DotNetNuke 4.9.5 installation. Thanks to this post I was able to whip out a quick and dirty web app that provides a clear text value of the encrypted passwords found in the database.

Step 1 - Add necessary web.config settings

Inside the system.web tag add the exact machinekey and membership tags found in the DotNetNuke web.config installation (copy and paste it).

<system.web>

<machineKeyvalidationKey="####################################" decryptionKey="###########################" decryption="3DES" validation="SHA1" />
<membership defaultProvider="AspNetSqlMembershipProvider" userIsOnlineTimeWindow="15">
<providers>
<clear />
<addname="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="SiteSqlServer" enablePasswordRetrieval="true" enablePasswordReset="true" requiresQuestionAndAnswer="false" minRequiredPasswordLength="7" minRequiredNonalphanumericCharacters="0" requiresUniqueEmail="false" passwordFormat="Encrypted" applicationName="DotNetNuke" description="Stores and retrieves membership data from the local Microsoft SQL Server database" />
</providers>
</membership>
</system.web>

Step 2 - Add necessary assembly settings

using System.Web.Security;
using System.Text;

Step 3 - Add Label to web form

<div>

DNN Clear Password<br />

<asp:LabelID="DNNPwdLabel" runat="server" />

</div>

Step 4 - Add necessary code methods

protected void Page_Load(object sender, EventArgs e)

{

var passwordManager = new NetFourMembershipProvider();

var clearPwd = "admin="+passwordManager.GetClearTextPassword("ABCDiH5i5yrD8FTPMNSJLJS0+YHiHBv5sVf1/VMZYXW=");

clearPwd += "<br/>host=" + passwordManager.GetClearTextPassword("ABCD1u+u8jDMYLTNEeD4QUzu31vicO1F1fgDnd5ZYXW=");

clearPwd += "<br/>1hunglow=" + passwordManager.GetClearTextPassword("ABCDFqVv6ty++9ZFbcyYTSF5Wrtqa2IRNWSi8qDZYXW=");

}

public class NetFourMembershipProvider : SqlMembershipProvider

{

public string GetClearTextPassword(string encryptedPwd)

{

byte[] encodedPassword = Convert.FromBase64String(encryptedPwd);

byte[] bytes = this.DecryptPassword(encodedPassword);

if (bytes == null)

{

return null;

}

return Encoding.Unicode.GetString(bytes, 0x10, bytes.Length - 0x10);

}

Move Cursor to Next Field When Pressing Hitting Enter Key

Wayne Larimore — Mon, 09 May 2011 13:35:27 GMT

The built-in behavior of a .Net Form when pressing or hitting the Enter key is a postback. I worked on a web application project about a year ago that required the Enter key behavior move to the next TextBox or field. Basically, making the Enter key behave like a Tab key.

Here is how I accomplished this:

Introduce some javascript inside your ASPX file or js resource.

<script type="text/javascript">

  function document.onkeydown() {

    var e = document.activeElement;

    if ((e.tagName == "INPUT" && (

          e.type == "text" ||

          e.type == "password" ||

          e.type == "checkbox" ||

          e.type == "radio") ||

          e.tagName == "SELECT") &&

          window.event.keyCode == 13)  {

              window.event.keyCode = 9;

</script>

From there you can take it and customize it to your liking. Hope this helps.

Inserting Null Values For DateTime Sql Server Type

Wayne Larimore — Wed, 12 Jan 2011 05:04:32 GMT

Here's how I return a null value for a sql data type of datetime:

newExpense.AMEXStatementDate = ConvertToDateTime(AMEXStatementDateTextBox.Text);

private DateTime ConvertToDateTime(string value)
{
if (!value.Equals(string.Empty))
return Convert.ToDateTime(value);
else
return (DateTime)System.Data.SqlTypes.SqlDateTime.Null;
}

SSIS Package DTS Property Key not valid error

Wayne Larimore — Thu, 06 Jan 2011 14:44:10 GMT

I recently built a SSIS package that included a web task and script task. The web task called a remote web service to pull in needed data. The script task wrote text files based on the data. All worked great on my development environment. However, once deployed it started throwing this error:

Code: 0xC0016016 Source: Description: Failed to decrypt protected XML node "DTS:Property" with error 0x8009000B "Key not valid for use in specified state.". You may not be authorized to access this information. This error occurs when there is a cryptographic error. Verify that the correct key is available. End Error

Thanks to this blog entry I found the solution. You basically need to set the Package Level Security to DontSaveSensitive. To accomplish this, right-click on the Package and choose properies. Inside the Security section you'll find the ProtectionLevel attribute. Set it to DontSaveSensitive.

Multiple connections to a server or shared resource by the same user

Wayne Larimore — Fri, 09 Jul 2010 17:04:51 GMT

Have you ever received this error message and scratched your head?

Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again

Since I run multiple virtual environments with the same logon credentials it used to happen to me all the time.

The solution is to use the IP Address or the full domain as demonstrated here:

Instead of \\SERVER1\Websites

Try this \\SERVER1.net\Websites OR \\192.168.30.1\Websites

Works like a charm.

"The unattend answer file contains an invalid product key" VMWare Windows Server 2008 Install

Wayne Larimore — Thu, 27 May 2010 12:43:37 GMT

I was prepping a virtual environment within VMWare Workstation 6.5 (EZInstall approach) for Microsoft SharePoint 2010. I encountered the following challenge when booting from a Windows Server 2008 R2 x64 ISO:

"The unattend answer file contains an invalid product key..."

To get rid of this show-stopper I simply disabled the floppy drive connection it had created. It worked like a charm.

How to get Eval ItemTemplate value from TemplateField

Wayne Larimore — Tue, 06 Apr 2010 15:07:38 GMT

If you want to retrieve a value produced by an Eval within an TemplateField within an ItemTemplate, this is how...

Here's the code:

string _id = ((DataBoundLiteralControl)GridView1.Cells[0].Controls[0]).Text;

Here's the Design View:

<asp:GridView ID="GridView1" runat="server" DataSourceID="sdsDataSource" DataKeyNames="ID">

  <Columns>

    <asp:TemplateField HeaderText="ID">

      <ItemTemplate> <%#Eval("ID") %></ItemTemplate>

    </asp:TemplateField>

  </Columns>

</asp:GridView>

It's Official - Upgraded Blog & New Diggs

Wayne Larimore — Mon, 16 Nov 2009 22:02:03 GMT

This past weekend I upgraded this blog. I run my blog on subText, a fork of the old .TEXT blogging platform. I went from version 1.9.3 to 2.1.2 and it wasn't a smooth migration path, let me tell you.

At the same time, I moved all of my websites (including this blog) from webhost4life to the fairly new WinHost.com. These guys are doing it all right. It fits exactly what I was needing and has cut my hosting cost in half. They bill on a monthly basis and have top quality support. The control panel is very simple but yet powerful. I went with the basic plan. However, they do provide an advanced plan as well. Some of the issues I ran across with my subText upgrade dealt with going from an IIS 6 platform to an IIS 7 platform. If anyone else is looking to do the same leave a comment and I'll fill you in on what I had to do to make it happen.

Anyways, I'm a happy camper now. Glad to have the migration behind me.

Telerik online VB C# Code Converter Translator

Wayne Larimore — Wed, 16 Sep 2009 15:21:30 GMT

It appears that Telerik has published a Visual Basic and C# code translation online. Nice.

http://converter.telerik.com/

How To Upgrade Windows 7 RC to Windows 7 RTM

Wayne Larimore — Sat, 08 Aug 2009 16:05:44 GMT

[via intowindows.com]

"If you have been running Windows 7 RC, then you might want to upgrade from Windows 7 RC to Windows 7 RTM. Although Windows 7 RC to Windows 7 RTM in-place upgrade is not supported officially, you can upgrade from Windows 7 RC to RTM with a simple trick."

http://www.intowindows.com/how-to-upgrade-windows-7-rc-to-rtm