Override the render function of the SharePoint content editor WebPart

Had you come across on Bug of the SharePoint Content Editor WebPart

So there is interesting problem

If using external links and internal links – you will get the bug

An example to the bug:
Try This - Internal links, external links and internal links again

What we get is the first two links work correctly, but the third link will link us to link the internal server name we have created the site. This is big bug for CEWP.

Hope you understood the bug.

How do we solve it? You can not inherit the WebPart - then shall we do?

Built Control Adapter performs render the code.
Create a small project in Visual Studio that contains the following code

using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Web.UI;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Administration;
namespace Roi.Moss.ControlAdapter.ContentEditorWebPart
{
  public class ContentEditorWebPartAdapter : System.Web.UI.Adapters.ControlAdapter
  {
    /// <summary>
    /// Override the render function off the CEWP
    /// </summary>
    /// <param name="writer">HtmlTextWriter write</param>
    protected override void Render(HtmlTextWriter writer)
    {
      //Create a new stringbuilder
      StringBuilder sb = new StringBuilder();
      //create a HtmlTextWriter
      HtmlTextWriter htw = new HtmlTextWriter(new StringWriter(sb));
      //Preform the base Render Method
      base.Render(htw);
      //Get the output string
      string output = sb.ToString();
      //Create a list with the alternate access urls
      List<Uri> alternateUrls = GetCurrentAlternateAccessMappingsUrls();
      //Read out the list with alternate access urls
      foreach (Uri alternateUrl in alternateUrls)
      {
        //Replace the url's with /
        output = output.Replace(alternateUrl.ToString(), "/");
      }
      //write the output to the page
      writer.Write(output);
    }
  }
}

The function GetCurrentAlternateAccessMappingsUrls has been showed last month.

Now pass the code to the GAC. On the folder of IIS which at App_Browsers folder.

For example C: \ Inetpub \ wwwroot \ wss \ VirtualDirectories \ 80 \ App_Browsers

Now you need to add the following code in a file compat.browser

<browsers>
  ...
  <browser refID="Default">
    <controlAdapters>      <adapter controlType="Microsoft.SharePoint.WebPartPages.ContentEditorWebPart"                 adapterType="Roi.Moss.ControlAdapter.ContentEditorWebPart.ContentEditorWebPartAdapter, Roi.Moss.ControlAdapter.ContentEditorWebPart, Version=1.0.0.0, Culture=neutral, PublicKeyToken=3f86d098a47bbaa6" /&amp;gt;
    </controlAdapters>
  </browser>
  ...
</browsers>

Hope I helped

Roi