com.compliance.webapp.filter.LicenseFilter.java Source code

Introduction

Here is the source code for com.compliance.webapp.filter.LicenseFilter.java

Source

package com.compliance.webapp.filter;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;

import com.compliance.model.about.Serial;
import com.util.DiskUtils;
import com.util.EncodeUtil;
import com.util.Encrypt;
import com.util.StringUtil;

public class LicenseFilter implements Filter {

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
        HttpServletRequest hRequest = (HttpServletRequest) request;

        String url = hRequest.getRequestURI();

        // ????
        if (url.contains("/serial/initSerial.action") || url.contains("/serial/initRegister.action")) {
            chain.doFilter(request, response);
            return;
        } else {

            String script = "";

            if (resolve(hRequest)) {
                if (!"compliance".equals(Serial.SERIAL_NAME)) {
                    script = "<script language=javascript>top.location.href='/compliance/serial/initSerial.action' </script>";
                }

                // licence
                if (!Encrypt.md5AndSha(DiskUtils.getSerialNumber("C")).equals(Encrypt.sha(Serial.SERIAL_SIGN))) {
                    script = "<script language=javascript>top.location.href='/compliance/serial/initSerial.action' </script>";
                }

                if (new Date().getTime() / 1000
                        - Serial.SERIAL_GEN_TIME > (Serial.SERIAL_AUTH_DAY * 24 * 60 * 60)) {
                    script = "<script language=javascript>top.location.href='/compliance/serial/initSerial.action' </script>";
                }
            } else {
                script = "<script language=javascript>top.location.href='/compliance/serial/initSerial.action' </script>";
            }

            if (StringUtil.isNotBlank(script)) {
                try {
                    response.setContentType("text/html;charset=utf-8");
                    response.getWriter().print(script);
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return;
            } else {
                chain.doFilter(request, response);
                return;
            }
        }
    }

    public void destroy() {
        // TODO Auto-generated method stub

    }

    public void init(FilterConfig filterConfig) throws ServletException {
        // TODO Auto-generated method stub

    }

    // ?XML
    public Boolean resolve(HttpServletRequest hRequest) {
        Boolean fileIsExist = false;
        try {
            String path = hRequest.getSession().getServletContext().getRealPath("/");
            File file = new File(path + "compliance.licence");
            if (file.exists()) {
                fileIsExist = true;
                FileInputStream in = null;

                in = new FileInputStream(file);
                byte[] buf = new byte[4096];
                int len = in.read(buf, 0, 4096);
                in.close();

                byte[] buffer = new byte[len];
                for (int i = 0; i < len; i++) {
                    buffer[i] = buf[i];
                }

                char[] key1 = { 0x3F, 0xEE, 0x3F, 0x5A, 0xAE, 0xFA, 0x1F, 0x0A };
                char[] key2 = { 0x3D, 0xAE, 0x3A, 0x5B, 0x3F, 0x6A, 0x11, 0xAA };
                char[] key3 = { 0x0B, 0x9E, 0xDF, 0x2A, 0xAA, 0xF0, 0x7D, 0x6E };

                buffer = EncodeUtil.xorDecode(buffer, key3);

                buffer = EncodeUtil.xorDecode(buffer, key2);

                buffer = EncodeUtil.xorDecode(buffer, key1);

                // ?XML
                Document document = DocumentHelper.parseText(new String(buffer));
                Element root = document.getRootElement();
                if (root.getName().equals("reginfo")) {
                    List<Element> elementsList = root.elements();
                    Iterator<Element> iterator = elementsList.iterator();
                    while (iterator.hasNext()) {
                        Element element = (Element) iterator.next();
                        if (element.getName().equals("name")) {
                            Serial.SERIAL_NAME = element.getText();
                        } else if (element.getName().equals("versions")) {
                            Serial.SERIAL_VERSIONS = element.getText();
                        } else if (element.getName().equals("auth_day")) {
                            Serial.SERIAL_AUTH_DAY = Integer.parseInt(element.getText());
                        } else if (element.getName().equals("gen_time")) {
                            Serial.SERIAL_GEN_TIME = Long.parseLong(element.getText());
                        } else if (element.getName().equals("resource_num")) {
                            Serial.SERIAL_RESOURCE_NUM = Integer.parseInt(element.getText());
                        } else if (element.getName().equals("sign")) {
                            Serial.SERIAL_SIGN = element.getText();
                        }
                    }
                }
            }
        } catch (Exception e) {
            fileIsExist = false;
            e.printStackTrace();

        }
        return fileIsExist;
    }
}