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1
18
19 package cowsultants.itracker.web.servlets;
20
21 import java.io.*;
22 import java.util.*;
23 import javax.servlet.*;
24 import javax.servlet.http.*;
25
26 import org.apache.struts.Globals;
27 import org.apache.struts.action.ActionErrors;
28
29 import cowsultants.itracker.ejb.client.models.*;
30 import cowsultants.itracker.ejb.client.util.*;
31 import cowsultants.itracker.web.util.*;
32
33 public abstract class GenericController extends HttpServlet {
34 protected void saveErrors(HttpServletRequest request, ActionErrors errors) {
35
36 if ((errors == null) || errors.isEmpty()) {
37 request.removeAttribute(Globals.ERROR_KEY);
38 return;
39 }
40 request.setAttribute(Globals.ERROR_KEY, errors);
41 }
42
43 protected boolean hasPermission(int[] permissionsNeeded, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
44 if(isLoggedIn(request, response)) {
45 HttpSession session = request.getSession(false);
46 HashMap permissions = (session == null ? null : (HashMap) session.getAttribute("permissions"));
47 if(! UserUtilities.hasPermission(permissions, permissionsNeeded)) {
48 forward("/unauthorized.jsp", request, response);
49 return false;
50 }
51 return true;
52 }
53 return false;
54 }
55
56 protected boolean hasPermission(int permissionNeeded, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
57 if(isLoggedIn(request, response)) {
58 HttpSession session = request.getSession(false);
59 HashMap permissions = (session == null ? null : (HashMap) session.getAttribute("permissions"));
60 if(! UserUtilities.hasPermission(permissions, permissionNeeded)) {
61 forward("/unauthorized.jsp", request, response);
62 return false;
63 }
64 return true;
65 }
66 return false;
67 }
68
69 protected boolean isLoggedIn(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
70 HttpSession session = request.getSession(false);
71 UserModel user = (session == null ? null : (UserModel) session.getAttribute("user"));
72 String  login = (user == null ? null : user.getLogin());
73
74 if(login == null || "".equals(login)) {
75 return false;
76 }
77 return true;
78 }
79
80 protected boolean isLoggedInWithRedirect(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
81 if(! isLoggedIn(request, response)) {
82 String requestPath = request.getRequestURI();
83 if(! requestPath.endsWith("/login.jsp")) {
84 String redirectURL = request.getRequestURI().substring(request.getContextPath().length());
85 forward("/login.jsp?" + Constants.AUTH_REDIRECT_KEY + "=" + redirectURL, request, response);
86 }
87 return false;
88 }
89 return true;
90 }
91
92 protected void forward(String url, HttpServletRequest request, HttpServletResponse response)
93 throws IOException, ServletException {
94 RequestDispatcher rd = request.getRequestDispatcher(url);
95 if(rd == null) {
96 throw new ServletException("RequestDispatcher is null. URL: " + url);
97 }
98
99 rd.forward(request, response);
100 }
101
102 protected void redirect(String url, HttpServletRequest request, HttpServletResponse response)
103 throws IOException, ServletException {
104
105 String baseURL = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() +
106 request.getContextPath();
107
108 response.sendRedirect(baseURL + url);
109 }
110
111 }
112 |
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