HTMLTagFilterRequestWrapper.java

/*
 * Copyright 2008-2009 MOPAS(Ministry of Public Administration and Security).
 *
 * 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 egovframework.rte.ptl.mvc.filter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
/**
 * HTMLTagFilterRequestWrapper.java
 * 
 * @author 실행환경 개발팀 함철
 * @since 2009.06.01
 * @version 1.0
 * @see
 *
 * <pre>
 * << 개정이력(Modification Information) >>
 *   
 *   수정일      수정자           수정내용
 *  -------    --------    ---------------------------
 *   2009.05.30  함철            최초 생성
 *
 * </pre>
 */
public class HTMLTagFilterRequestWrapper extends HttpServletRequestWrapper {

	public HTMLTagFilterRequestWrapper(HttpServletRequest request) {
		super(request);
	}

	public String[] getParameterValues(String parameter) {

		String[] values = super.getParameterValues(parameter);

		if (values == null) {
			return null;
		}

		for (int i = 0; i < values.length; i++) {
			if (values[i] != null) {
				StringBuffer strBuff = new StringBuffer();
				for (int j = 0; j < values[i].length(); j++) {
					char c = values[i].charAt(j);
					switch (c) {
						case '<':
							strBuff.append("<");
							break;
						case '>':
							strBuff.append(">");
							break;
						case '&':
							strBuff.append("&");
							break;
						case '"':
							strBuff.append(""");
							break;
						case '\'':
							strBuff.append("'");
							break;
						default:
							strBuff.append(c);
							break;
					}
				}
				values[i] = strBuff.toString();
			} else {
				values[i] = null;
			}
		}

		return values;
	}

	public String getParameter(String parameter) {

		String value = super.getParameter(parameter);

		if (value == null) {
			return null;
		}

		StringBuffer strBuff = new StringBuffer();

		for (int i = 0; i < value.length(); i++) {
			char c = value.charAt(i);
			switch (c) {
				case '<':
					strBuff.append("<");
					break;
				case '>':
					strBuff.append(">");
					break;
				case '&':
					strBuff.append("&");
					break;
				case '"':
					strBuff.append(""");
					break;
				case '\'':
					strBuff.append("'");
					break;
				default:
					strBuff.append(c);
					break;
			}
		}

		value = strBuff.toString();

		return value;
	}

}