/*
 * Copyright 2006-2025 www.anyline.org
 *
 * 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.anyline.web.tag.des;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;

import org.anyline.util.BasicUtil;
import org.anyline.util.encrypt.DESUtil;
import org.anyline.web.tag.BaseBodyTag;
/** 
 * http request 请求参数名=参数名加密 
 * 逐个加密 
 * @author zh 
 * 
 */ 
public class DESHttpRequestParam extends BaseBodyTag implements Cloneable{
	private static final long serialVersionUID = 1L; 
	private String value;		// 被加密数据
 
	public int doEndTag() throws JspException {
		try{
			value = BasicUtil.nvl(value,body,"").toString().trim(); 
			if(null != value && !"".equals(value)) {
				String result = ""; 
				String url = ""; 
				String split = ""; 
				if(value.contains("?")) {
					url = value.substring(0, value.indexOf("?")); 
					value = value.substring(value.indexOf("?")+1); 
					split = "?"; 
				} 
				if(value.startsWith("&")) {
					split = "&"; 
				} 
				String[] params = value.split("&"); 
				int size = params.length; 
				for(int i=0; i<size; i++) {
					String param = params[i]; 
					String[] keys = param.split("="); 
					if(keys.length == 2) {
						result += DESUtil.encryptParamKey(keys[0]) + "=" + DESUtil.encryptParamValue(keys[1]); 
						if(i<size-1) {
							result += "&"; 
						} 
					} 
				} 
				result = url + split + result; 
				JspWriter out = pageContext.getOut(); 
				out.print(result); 
			} 
		}catch(Exception e) {
			e.printStackTrace(); 
		}finally{
			release(); 
		} 
		return EVAL_PAGE;    
	} 
	@Override 
	public void release() {
		super.release();
		body = null; 
		value = null; 
	} 
	public String getValue() {
		return value; 
	} 
 
	public void setValue(String value) {
		this.value = value; 
	} 
 
	@Override 
	protected Object clone() throws CloneNotSupportedException {
		return super.clone(); 
	} 
} 
