/*
 * Created on Feb 22, 2005
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package webraveler.plugin;

import java.util.Hashtable;

import webraveler.http.HTTPRequest;
import webraveler.http.HTTPResponse;
import webraveler.ravel.RavelerPlugin;

/**
 * @author schmitzc
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class W3CValidatorPlugin extends RavelerPlugin {

	static final String validationHTML = "<p><a href=\"http://validator.w3.org/check?uri=referer\"><img src=\"http://www.w3.org/Icons/valid-html401\"alt=\"Valid HTML 4.01!\" height=\"31\" width=\"88\"></a></p>";
	
	public W3CValidatorPlugin() {
		name = "W3CValidator";
		mimeTypes.add("text/html");
	}
	
	/**
	 * 
	 */
	public boolean initialize() {
		return true;
	}
	
	/**
	 *
	 */
	public HTTPRequest execute(HTTPRequest request, Hashtable attributes) {
		return request;
	} // execute(HTTPRequest)
	
	/**
	 *
	 */
	public HTTPResponse execute(HTTPResponse response, Hashtable attributes) {
		//Insert a link to the W3C Validator at the top of the page
		String insertHtml = "<h4>Validate this document's HTML: </h4>";
		
		response.getHtmlPage().insertAtTop(insertHtml+validationHTML);
		
		response.correctContentLength();
		
		return response;
		
	} //execute(HTTPResponse)
	
	/**
	 *
	 */
	public void terminate() {
		
	} // terminate()
	
	
	/**
	 * Return the default configuration for this plugin as a hash table. 
	 *
	 */
	public void setDefaultAttributes() {
		attributes = new Hashtable();
	}
}