1 | package edu.gjoko.schedlr.config;
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2 |
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3 | import edu.gjoko.schedlr.services.PostgresUserDetailsService;
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4 | import lombok.RequiredArgsConstructor;
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5 | import org.springframework.security.core.GrantedAuthority;
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6 | import org.springframework.security.core.context.SecurityContextImpl;
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7 | import org.springframework.security.core.userdetails.UserDetails;
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8 | import org.springframework.util.StringUtils;
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9 | import org.springframework.web.bind.annotation.RequestBody;
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10 | import org.springframework.web.filter.GenericFilterBean;
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11 |
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12 | import javax.servlet.*;
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13 | import javax.servlet.http.HttpServletRequest;
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14 | import javax.servlet.http.HttpServletResponse;
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15 | import javax.servlet.http.HttpSession;
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16 | import java.io.IOException;
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17 | import java.util.Collection;
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18 | import java.util.HashMap;
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19 | import java.util.Map;
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20 |
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21 | @RequiredArgsConstructor
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22 | public class AppFilter extends GenericFilterBean {
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23 |
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24 | private final PostgresUserDetailsService userDetailsService;
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25 | @Override
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26 | public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
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27 | HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
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28 | HttpSession session = httpServletRequest.getSession(false);
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29 | HttpServletResponse response = (HttpServletResponse) servletResponse;
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30 |
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31 | if(httpServletRequest.getRequestURI().endsWith(".js")
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32 | || httpServletRequest.getRequestURI().endsWith(".css")) {
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33 | filterChain.doFilter(servletRequest, servletResponse);
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34 | return;
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35 | }
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36 |
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37 | if(httpServletRequest.getRequestURI().startsWith("/api")) {
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38 | session = ((HttpServletRequest) servletRequest).getSession(true);
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39 | SecurityContextImpl sci = (SecurityContextImpl) session.getAttribute("SPRING_SECURITY_CONTEXT");
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40 |
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41 | if(sci != null && session.getAttribute("stakeholderId") == null) {
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42 | UserDetails userDetails = (UserDetails) sci.getAuthentication().getPrincipal();
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43 | Long stakeholderId = userDetailsService.loadStakeholderId(userDetails.getUsername());
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44 | session.setAttribute("stakeholderId", stakeholderId);
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45 | }
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46 | filterChain.doFilter(servletRequest, servletResponse);
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47 | return;
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48 | }
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49 |
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50 | if(session != null) {
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51 | SecurityContextImpl sci = (SecurityContextImpl) session.getAttribute("SPRING_SECURITY_CONTEXT");
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52 | if(sci != null) {
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53 | UserDetails userDetails = (UserDetails) sci.getAuthentication().getPrincipal();
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54 | Long stakeholderId = userDetailsService.loadStakeholderId(userDetails.getUsername());
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55 | session.setAttribute("stakeholderId", stakeholderId);
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56 |
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57 | final Collection<? extends GrantedAuthority> authorities = userDetails.getAuthorities();
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58 | for (final GrantedAuthority grantedAuthority : authorities) {
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59 | String authorityName = grantedAuthority.getAuthority();
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60 | String page = "";
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61 | switch (authorityName) {
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62 | case "ADMIN":
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63 | page = "/admin";
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64 | break;
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65 | case "CUSTOMER":
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66 | if ("/customer_admin".equals(httpServletRequest.getRequestURI())) {
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67 | page = "/customer_admin";
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68 | } else {
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69 | page = "/homepage";
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70 | }
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71 | break;
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72 | case "BUSINESS_OWNER":
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73 | page = "/business_admin";
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74 | break;
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75 | default:
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76 | break;
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77 | }
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78 | if(page != null && !page.trim().isEmpty() && !DispatcherType.ERROR.equals(servletRequest.getDispatcherType())) {
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79 | servletRequest.getRequestDispatcher(page).forward(servletRequest, servletResponse);
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80 | return;
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81 | }
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82 | }
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83 | }
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84 | }
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85 | filterChain.doFilter(servletRequest, servletResponse);
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86 | }
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87 | }
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