Custom actions allow you to extend the UrlRewriter.NET component with your own actions.

Follow these steps to create your custom action:

  1. Create a class that implements the IRewriteAction interface. This class will be executed when the action is required. 
    public class SetStatusAction : IRewriteAction
{
/// <summary>
/// Default constructor.
/// </summary>
/// <param name=”statusCode”>The status code to set.</param>
public SetStatusAction(HttpStatusCode statusCode)
{
_statusCode = statusCode;
}

/// <summary>
/// The status code.
/// </summary>
public HttpStatusCode StatusCode
{
get
{
return _statusCode;
}
set
{
_statusCode = value;
}
}

/// <summary>
/// Executes the action.
/// </summary>
/// <param name=”context”>The rewriting context.</param>
public void Execute(RewriteContext context)
{
context.StatusCode = StatusCode;
}

/// <summary>
/// The Processing directive.
/// </summary>
public RewriteProcessing Processing
{
get
{
if ((int)StatusCode >= 300)
{
return RewriteProcessing.StopProcessing;
}
else
{
return RewriteProcessing.ContinueProcessing;
}
}
}

private HttpStatusCode _statusCode;
}
  2. Create an action parser class that implements the IRewriteActionParser interface. This class will be called by UrlRewriter.NET when reading the rewriting rules and it recognises your action name. 
    /// <summary>
/// Action parser for the set-status action.
/// </summary>
public class SetStatusActionParser : IRewriteActionParser
{
/// <summary>
/// Default constructor.
/// </summary>
public SetStatusActionParser()
{
}

/// <summary>
/// Parses the node.
/// </summary>
/// <param name=”node”>The node to parse.</param>
/// <param name=”config”>The rewriter configuration.
</param>
/// <returns>The parsed action, or null if no action 
parsed.</returns>
public IRewriteAction Parse(XmlNode node, object config)
{
XmlNode statusCodeNode = node.Attributes. 
GetNamedItem(”status”);
if (statusCodeNode == null)
{
return null;
}

return new SetStatusAction((HttpStatusCode) 
Convert.ToInt32(statusCodeNode.Value));
}

/// <summary>
/// Whether the action allows nested actions.
/// </summary>
public override bool AllowsNestedActions
{
get
{
return false;
}
}

/// <summary>
/// Whether the action allows attributes.
/// </summary>
public override bool AllowsAttributes
{
get
{
return true;
}
}

public string Name
{
get
{
return “myaction”;
}
}
}
  3. Register your custom action parser. 
    <register parser="MyNamespace.Parsers.SetStatusActionParser,
MyAssembly" />
  4. Use your custom action. 
    <myaction status="405" />

See Also