dudinii :
I have a spring boot rest api with jwt authentication. The problem is i cannot get rid of default 403 Access Denied rest response which looks like this:
{
"timestamp": 1516206966541,
"status": 403,
"error": "Forbidden",
"message": "Access Denied",
"path": "/api/items/2"
}
I created custom AccessDeniedHandler:
public class CustomAccessDeniedHandler implements AccessDeniedHandler {
@Override
public void handle(HttpServletRequest req,
HttpServletResponse res,
AccessDeniedException accessDeniedException) throws IOException, ServletException {
ObjectMapper mapper = new ObjectMapper();
res.setContentType("application/json;charset=UTF-8");
res.setStatus(403);
res.getWriter().write(mapper.writeValueAsString(new JsonResponse()
.add("timestamp", System.currentTimeMillis())
.add("status", 403)
.add("message", "Access denied")));
}
}
and added it to WebConfig class
@EnableWebSecurity
public class WebSecurity extends WebSecurityConfigurerAdapter {
private UserDetailsService userDetailsService;
private BCryptPasswordEncoder bCryptPasswordEncoder;
@Autowired
public WebSecurity(UserDetailsService userDetailsService, BCryptPasswordEncoder bCryptPasswordEncoder) {
this.userDetailsService = userDetailsService;
this.bCryptPasswordEncoder = bCryptPasswordEncoder;
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.sessionManagement()
.sessionCreationPolicy(SessionCreationPolicy.NEVER)
.and()
.csrf().disable()
.authorizeRequests()
.antMatchers(HttpMethod.POST, REGISTER_URL).permitAll()
.anyRequest().authenticated()
.and()
.exceptionHandling().accessDeniedHandler(accessDeniedHandler())
.and()
.addFilter(new JWTAuthenticationFilter(authenticationManager(), tokenProvider()))
.addFilter(new JWTAuthorizationFilter(authenticationManager(), tokenProvider()));
}
@Override
public void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder);
}
@Bean
public TokenProvider tokenProvider(){
return new TokenProvider();
}
@Bean
public AccessDeniedHandler accessDeniedHandler(){
return new CustomAccessDeniedHandler();
}
}
Despite this i'm still getting the default Access Denied response. When debugging i realized that the handle method from custom handler isn't even called. What is the case here?
dudinii :
I think i resolved the problem. Instead of creating an implementation of AccessDeniedHandler i had to create a custom AuthenticationEntryPoint and set it in exception handling.
WebConfig now looks like this:
@EnableWebSecurity
public class WebSecurity extends WebSecurityConfigurerAdapter {
private UserDetailsService userDetailsService;
private BCryptPasswordEncoder bCryptPasswordEncoder;
@Autowired
public WebSecurity(UserDetailsService userDetailsService, BCryptPasswordEncoder bCryptPasswordEncoder) {
this.userDetailsService = userDetailsService;
this.bCryptPasswordEncoder = bCryptPasswordEncoder;
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and()
.csrf().disable()
.authorizeRequests()
.antMatchers(HttpMethod.POST, REGISTER_URL).permitAll()
.anyRequest().authenticated()
.and()
.exceptionHandling().authenticationEntryPoint(authenticationEntryPoint())
.and()
.addFilter(new JWTAuthenticationFilter(authenticationManager(), tokenProvider()))
.addFilter(new JWTAuthorizationFilter(authenticationManager(), tokenProvider()));
}
@Override
public void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder);
}
@Bean
public TokenProvider tokenProvider(){
return new TokenProvider();
}
@Bean
public AuthenticationEntryPoint authenticationEntryPoint(){
return new CustomAuthenticationEntryPoint();
}
}
and the CustomAuthenticationEntryPoint:
public class CustomAuthenticationEntryPoint implements AuthenticationEntryPoint {
@Override
public void commence(HttpServletRequest req, HttpServletResponse res, AuthenticationException authException) throws IOException, ServletException {
res.setContentType("application/json;charset=UTF-8");
res.setStatus(403);
res.getWriter().write(JsonBuilder //my util class for creating json strings
.put("timestamp", DateGenerator.getDate())
.put("status", 403)
.put("message", "Access denied")
.build());
}
}
Now everything works as i wanted.
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