Subversion Repositories SmartDukaan

package in.shop2020.serving.controllers;

import in.shop2020.serving.services.UserSessionInfo;
import in.shop2020.serving.utils.DesEncrypter;
import in.shop2020.serving.utils.Utils;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.struts2.interceptor.CookiesAware;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

import com.opensymphony.xwork2.ValidationAware;
import com.opensymphony.xwork2.ValidationAwareSupport;

/**
 * Base class for all user action handlers i.e. controllers
 * 
 * @author rajveer
 */
public abstract class BaseController extends ValidationAwareSupport implements  CookiesAware, ServletResponseAware, ServletRequestAware {
        /**
         * 
         */
        private static final long serialVersionUID = 1L;
        protected Map<String, Cookie> cookiesMap = null;
    protected HttpServletResponse response;
    protected HttpServletRequest request;
    protected HttpSession session;
    protected UserSessionInfo userinfo = null;
        private static Log log = LogFactory.getLog(BaseController.class);
        
    private DesEncrypter desEncrypter = new DesEncrypter("shop2020");
    
    protected Cookie userCookie = null;
        
        public BaseController() {
        }
        
        public Map getCookiesMap() {
                return cookiesMap;
        }
        
        @Override
        public void setCookiesMap(Map cookiesMap) {
                log.info("Received cookiesMap and it is " + cookiesMap);
                this.cookiesMap = cookiesMap;
        }
        
        @Override
        public void setServletResponse(HttpServletResponse response)
        {
                this.response = response;
                if(userCookie!=null)
                        response.addCookie(userCookie);
        }
        
        @Override
        public void setServletRequest(HttpServletRequest request){
                this.request = request;
                this.session = request.getSession();    // Get the existing session or create a new one
                getCookiesMap(request);
                String requestedSessionId = request.getRequestedSessionId();
                
                // Check if this is a brand new request with no prior cookies set; OR
                // If the request is for an active session.
                if(requestedSessionId == null || request.isRequestedSessionIdValid()){
                        log.info("Request received for valid session: " + requestedSessionId);
                        // Set the userinfo and the uid cookie if they're not already set.
                        this.session = request.getSession();
                        setUserSessionInfo(this.session.getId());
                        createUserCookie(this.userinfo.getUserId(), false);
                } else {
                        log.info("Request received for invalid session: " + requestedSessionId);
                        // If the requested session is inactive, do the following:
                        // 1. Retrieve the user for the requested session from the user cookie
                        // 2. Add the retrieved user to the newly created session above.
                        // 3. Update the uid cookie to ensure that a valid user is set in the session
                        recreateSessionFromUIDCookie(this.session.getId());
                        createUserCookie(this.userinfo.getUserId(), true);
                }
        }

        private void getCookiesMap(HttpServletRequest request) {
                cookiesMap  = new HashMap<String, Cookie>();
                Cookie[] cookies = request.getCookies();
                // This check is necessary for the first request when no cookies are
                // sent.
                if(cookies==null)
                        return;
                for (Cookie cookie : cookies)
                        cookiesMap.put(cookie.getName(), cookie);
        }

        private void setUserSessionInfo(String jsessionid){
                this.userinfo = (UserSessionInfo) this.session.getAttribute("userinfo");
                if(this.userinfo == null || this.userinfo.getUserId() == -1){
                        this.userinfo = new UserSessionInfo(jsessionid);
                        this.session.setAttribute("userinfo", this.userinfo);
                }
        }

        protected void createUserCookie(long userId, boolean force) {
                userCookie = (Cookie) cookiesMap.get("uid");
                if(force || userCookie == null || !(userId + "").equals(userCookie.getValue())){
                        String encryptedUserId = desEncrypter.encrypt(userId + "");  
                        userCookie = new Cookie("uid", encryptedUserId);
                }
        }
        
        private void recreateSessionFromUIDCookie(String jsessionid) {
                Cookie userCookie = (Cookie) cookiesMap.get("uid");
                if(userCookie != null){
                        String uidString = userCookie.getValue();
                        if(uidString != null){
                                try {
                                        Long receivedUID = Long.parseLong(desEncrypter.decrypt(uidString));
                                        this.userinfo = new UserSessionInfo(receivedUID, jsessionid);
                                        this.session.setAttribute("userinfo", this.userinfo);
                                } catch (NumberFormatException nfe) {
                                        log.error("The UID cookie contains an unparseable userID");
                                }
                        }
                }
                if(this.userinfo==null)
                        setUserSessionInfo(jsessionid);
        }
        
//      private void processCookiesInfo(){
//              Cookie[] cookies = this.request.getCookies();
//              boolean foundUserIdCookie = false;
//              boolean foundSessionIdCookie = false;
//              long userId = 0 ;
//              long sessionId = 0;
//              
//              if(cookies != null){
//                  for(int loopIndex = 0; loopIndex < cookies.length; loopIndex++) { 
//                      Cookie cookie1 = cookies[loopIndex];
//                      if (cookie1.getName().equals("userid")) {
//                          System.out.println("User Id is = " + cookie1.getValue());
//                          userId = Long.parseLong(cookie1.getValue());
//                          foundUserIdCookie = true;
//                      }
//                      if (cookie1.getName().equals("sessionid")) {
//                          System.out.println("Session Id is = " + cookie1.getValue());
//                          sessionId = Long.parseLong(cookie1.getValue());
//                          foundSessionIdCookie = true;
//                      }
//              }
//              }
//      
//              if(foundUserIdCookie){
//                      if(Utils.isUserLoggedIn(userId)){
//                              userinfo = new UserSessionInfo(userId, false);
//                              
//                      }
//                      else{
//                              if(foundSessionIdCookie){
//                                      userinfo = new UserSessionInfo(sessionId, true);        
//                              }else{
//                                      userinfo = new UserSessionInfo();
//                                  for(int loopIndex = 0; loopIndex < cookies.length; loopIndex++) { 
//                                      Cookie cookie1 = cookies[loopIndex];
//                                      if (cookie1.getName().equals("userid")) {
//                                              cookie1.setMaxAge(0);
//                                              //cookie1.setPath(cookie1.getPath());
//                                                      //cookie1.setDomain(cookie1.getDomain());
//                                              tempCookie = cookie1;
//                                      }
//                                      }
//                              }
//                      }
//              }                       
//              else{  
//                      if(foundSessionIdCookie){
//                              userinfo = new UserSessionInfo(sessionId, true);                        
//                      }
//                      else{
//                              userinfo = new UserSessionInfo();
//                              //Cookie cookie1 = new Cookie("sessionid", userinfo.getSessionId()+"");
//                      //tempCookie = cookie1;
//                      }
//              }
//      }

        private String getEmail(){
                return userinfo.getEmail();
        }

        private String getNameOfUser(){
                return userinfo.getNameOfUser();
        }

}