/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.keycloak.common.util;
/**
* @author pedroigor
*/
public class HtmlUtils {
/**
* <p>Escapes the value for a HTML element attribute.</p>
*
* @param value
* @return
*/
public static String escapeAttribute(String value) {
StringBuilder escaped = new StringBuilder();
for (int i = 0; i < value.length(); i++) {
char chr = value.charAt(i);
if (chr == '<') {
escaped.append("<");
} else if (chr == '>') {
escaped.append(">");
} else if (chr == '"') {
escaped.append(""");
} else if (chr == '\'') {
escaped.append("'");
} else if (chr == '&') {
escaped.append("&");
} else {
escaped.append(chr);
}
}
return escaped.toString();
}
}