GwtSafeHtmlUtils.java

/*******************************************************************************
 * Copyright (c) 2011, 2016 Eurotech and/or its affiliates
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Eurotech
 *******************************************************************************/
package org.eclipse.kura.web.client.util;

import com.google.gwt.safehtml.shared.SafeHtmlUtils;

public class GwtSafeHtmlUtils {

	public static String htmlEscape(String unsafeHtml)
	{
		if (unsafeHtml == null){
			return null;
		}
		return SafeHtmlUtils.htmlEscape(unsafeHtml);
	}
	
	public static String inputSanitize(String unsafeHtml)
	{
		if (unsafeHtml == null){
			return null;
//		} else if (!unsafeHtml.matches("[0-9A-Za-z/.@*#:\\ \\_\\-]+")){
//			return "";
		}
		return SafeHtmlUtils.htmlEscape(unsafeHtml);
	}

	public static String htmlUnescape(String safeHtml)
	{
		if (safeHtml == null)
			return null;

		if (safeHtml.indexOf("<") != -1) {
			safeHtml = safeHtml.replace("<", "<");
		}
		if (safeHtml.indexOf(">") != -1) {
			safeHtml = safeHtml.replace(">", ">");
		}
		if (safeHtml.indexOf(""") != -1) {
			safeHtml = safeHtml.replace(""", "\"");
		}
		if (safeHtml.indexOf("'") != -1) {
			safeHtml = safeHtml.replace("'", "'");
		}
		if (safeHtml.indexOf("&") != -1) {
			safeHtml = safeHtml.replace("&", "&");
		}
		return safeHtml;
	}
}