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Authorization failure in Springboot returns empty body with 403 status message

I have implemented a custom exception handler that handles all the exception that I am throwing:
#ControllerAdvice
public class AppExceptionHandler {
#ExceptionHandler(value = {UserServiceException.class})
public ResponseEntity<Object>handleUserServiceException(
UserServiceException ex, WebRequest request){
ErrorMessage errorMessage = new ErrorMessage(new Date(), ex.getMessage());
return new ResponseEntity<>(errorMessage, new HttpHeaders(), HttpStatus.INTERNAL_SERVER_ERROR );
}
//A universal exception handling method
#ExceptionHandler(value = {Exception.class})
public ResponseEntity<Object>handleUserOtherExceptions(Exception ex, WebRequest request){
ErrorMessage errorMessage = new ErrorMessage(new Date(), ex.getMessage());
return new ResponseEntity<>(errorMessage, new HttpHeaders(), HttpStatus.INTERNAL_SERVER_ERROR );
}
}
The Universal exception handler method doesn't gets called for 403 status response, the response body is empty but I want to see a response body.
Below is my Security class:
#EnableWebSecurity
public class WebSecurity extends WebSecurityConfigurerAdapter{
private final UserService userService;
private final BCryptPasswordEncoder bCryptPasswordEncoder;
// #Autowired
// AuthenticationFailureHandler authenticationFailureHandler;
public WebSecurity(UserService userService, BCryptPasswordEncoder bCryptPasswordEncoder) {
this.userService = userService;
this.bCryptPasswordEncoder = bCryptPasswordEncoder;
}
#Override
protected void configure(HttpSecurity http) throws Exception {
http.csrf().disable().authorizeRequests()
.antMatchers(HttpMethod.POST, SecurityConstants.SIGN_UP_URL)
.permitAll()
.anyRequest()
.authenticated()
.and()
.addFilter(getAuthenticationFilter())
.addFilter(new AuthorizationFilter(authenticationManager()))
.sessionManagement()
.sessionCreationPolicy(SessionCreationPolicy.STATELESS);
}
#Override
public void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userService)
.passwordEncoder(bCryptPasswordEncoder);
}
public AuthenticationFilter getAuthenticationFilter() throws Exception{
final AuthenticationFilter filter = new AuthenticationFilter(authenticationManager());
filter.setFilterProcessesUrl("/users/login");
return filter;
}
Below is my AuthenticationFilter:
public class AuthenticationFilter extends UsernamePasswordAuthenticationFilter{
private final AuthenticationManager authenticationManager;
public AuthenticationFilter(AuthenticationManager authenticationManager) {
this.authenticationManager = authenticationManager;
}
#Override
public Authentication attemptAuthentication(HttpServletRequest req, HttpServletResponse res)
throws AuthenticationException {
try {
UserLoginRequestModel creds = new ObjectMapper()
.readValue(req.getInputStream(), UserLoginRequestModel.class);
return authenticationManager.authenticate(
new UsernamePasswordAuthenticationToken(
creds.getEmail(), creds.getPassword(), new ArrayList<>()));
}
catch (IOException e) {
throw new RuntimeException(e);
}
}
#Override
protected void successfulAuthentication(HttpServletRequest req
, HttpServletResponse res
, FilterChain chain
, Authentication auth)
throws IOException, ServletException {
String userName = ((User) auth.getPrincipal()).getUsername();
String token = Jwts.builder()
.setSubject(userName)
.setExpiration(new Date(System.currentTimeMillis() + SecurityConstants.EXPIRATION_TIME))
.signWith(SignatureAlgorithm.HS512, SecurityConstants.getTokenSecret())
.compact();
UserService userService = (UserService) SpringApplicationContext.getBean("userServiceImpl");
UserDto userDto = userService.getUser(userName);
res.addHeader(SecurityConstants.HEADER_STRING, SecurityConstants.TOKEN_PREFIX + token);
res.addHeader(SecurityConstants.USER_ID, userDto.getUserId());
}
}
Below is my AuthorizationFilter:
public class AuthorizationFilter extends BasicAuthenticationFilter {
public AuthorizationFilter(AuthenticationManager authenticationManager) {
super(authenticationManager);
}
#Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
throws IOException, ServletException {
String header = request.getHeader(SecurityConstants.HEADER_STRING);
if(header == null || !header.startsWith(SecurityConstants.TOKEN_PREFIX)) {
chain.doFilter(request, response);
return;
}
UsernamePasswordAuthenticationToken authentication = getAuthentication(request);
SecurityContextHolder.getContext().setAuthentication(authentication);
chain.doFilter(request, response);
}
private UsernamePasswordAuthenticationToken getAuthentication(HttpServletRequest request) {
String token = request.getHeader(SecurityConstants.HEADER_STRING);
if(token != null) {
token = token.replace(SecurityConstants.TOKEN_PREFIX, "");
String user = Jwts.parser()
.setSigningKey(SecurityConstants.getTokenSecret())
.parseClaimsJws(token)
.getBody()
.getSubject();
if(user != null) {
return new UsernamePasswordAuthenticationToken(user, null, new ArrayList<>());
}
}
return null;
}
}
Below is my postman response (As you can see the body is empty
I want Spring to handle all other exceptions by calling the overriding #ExceptionHandler I have written in the above AppExceptionHandler class.
As you can see the response body is empty. How do I return the default or custom object for response body?

Im not quite sure if this is what you are looking for, but If you want to somehow customize the messages from failed authentication have a look on AuthenticationEntryPoint like in https://www.baeldung.com/spring-security-basic-authentication. There you can react on the thrown exception and customize what message and codes to return.

Spring Boot #PreAuthorize hasAuthority not working

I have implemented SpringSecurity with JWT, all working nicely except one thing
#PreAuthorize("hasAuthority('admin:read')") isnt working, it gives
403 FORBIDDEN error
I will share parts of important codes. The token return all authorities properly which I added as SimpleGrantedAuthority
SecurityConfig
#Configuration
#EnableWebSecurity
#EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
...logic
}
AccountController
#RestController
#RequestMapping("/api")
public class AccountController {
//this works
#RequestMapping(value = "/accounts", method = RequestMethod.GET)
#PreAuthorize("hasAnyRole('ROLE_ADMIN')")
public ResponseEntity<?> loadAll() {
List<AccountDTO> res = accountService.loadAll();
return new ResponseEntity(new ResponseWrapper(res), HttpStatus.OK);
}
//this doesn't work
#RequestMapping(value = "/accounts/{uid}", method = RequestMethod.GET)
#PreAuthorize("hasAuthority('admin:read')")
ResponseEntity<?> findByUId(#PathVariable String uid) throws Exception {
AccountDTO dto = this.accountService.findByUid(uid);
return new ResponseEntity<>(new ResponseWrapper(dto), HttpStatus.OK);
}
}
Token
{
"sub": "nenad.arbutina",
"authorities": [
{
"authority": "ROLE_ADMIN"
},
{
"authority": "admin:read"
},
{
"authority": "admin:create"
},
{
"authority": "admin:update"
},
{
"authority": "admin:delete"
}
],
"iat": 1631111042,
"exp": 1632261600
}
update on code. When debugged I am getting only ROLE_ADMIN, so I am confused
SecurityConfig
#Configuration
#EnableWebSecurity
#EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
private final MyUserDetailService myUserDetailService;
private final SecretKey secretKey;
private final JwtConfig jwtConfig;
#Autowired
public SecurityConfig(
MyUserDetailService myUserDetailService,
SecretKey secretKey,
JwtConfig jwtConfig) {
this.myUserDetailService = myUserDetailService;
this.secretKey = secretKey;
this.jwtConfig = jwtConfig;
}
#Bean
PasswordEncoder getEncoder() {
return new BCryptPasswordEncoder();
}
#Override
protected void configure(HttpSecurity http) throws Exception {
http
.csrf().disable()
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and()
.addFilter(new JwtUsernameAndPasswordAuthenticationFilter(authenticationManager(), jwtConfig, secretKey))
.addFilterAfter(new JwtTokenVerifier(secretKey, jwtConfig), JwtUsernameAndPasswordAuthenticationFilter.class)
.authorizeRequests()
.antMatchers("/", "index","/css/*", "/js/*").permitAll()
.anyRequest()
.authenticated();
}
#Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.authenticationProvider(daoAuthenticationProvider());
}
#Bean
public DaoAuthenticationProvider daoAuthenticationProvider() {
DaoAuthenticationProvider provider = new
DaoAuthenticationProvider();
provider.setPasswordEncoder(getEncoder());
provider.setUserDetailsService(myUserDetailService);
return provider;
}
}
JwtTokenVerifier
public class JwtTokenVerifier extends OncePerRequestFilter {
private final SecretKey secretKey;
private final JwtConfig jwtConfig;
public JwtTokenVerifier(SecretKey secretKey,
JwtConfig jwtConfig) {
this.secretKey = secretKey;
this.jwtConfig = jwtConfig;
}
#Override
protected void doFilterInternal(HttpServletRequest request,
HttpServletResponse response,
FilterChain filterChain) throws ServletException, IOException {
String authorizationHeader = request.getHeader(jwtConfig.getAuthorizationHeader());
if (Strings.isNullOrEmpty(authorizationHeader) || !authorizationHeader.startsWith(jwtConfig.getTokenPrefix())) {
filterChain.doFilter(request, response);
return;
}
String token = authorizationHeader.replace(jwtConfig.getTokenPrefix(), "");
try {
Jws<Claims> claimsJws = Jwts.parser()
.setSigningKey(secretKey)
.parseClaimsJws(token);
Claims body = claimsJws.getBody();
String username = body.getSubject();
List<Map<String, String>> authorities = (List<Map<String, String>>) body.get("authorities");
Set<SimpleGrantedAuthority> simpleGrantedAuthorities = authorities.stream()
.map(m -> new SimpleGrantedAuthority(m.get("authority")))
.collect(Collectors.toSet());
Authentication authentication = new UsernamePasswordAuthenticationToken(
username,
null,
simpleGrantedAuthorities
);
SecurityContextHolder.getContext().setAuthentication(authentication);
filterChain.doFilter(request, response);
} catch (JwtException e ){
throw new IllegalStateException(String.format("Token %s is not to be trusted", token));
}
}
}

Spring REST Api respond with empty body + 403 Forbidden on runtime exceptions

I created a Spring Boot Rest Api with custom JWT authentication.
My problem is that when I'm sending for example a request with an expired, or invalid JWT token, I'm getting an exception like this:
com.auth0.jwt.exceptions.SignatureVerificationException: The Token's Signature resulted invalid when verified using the Algorithm: HmacSHA512
Which is obvoiusly OK, but the response body is empty and therefore the client has no clue why is the 403 error.
Problem is same with Spring's BadCredentials Exception etc...
How do I convert these exceptions into custom error responses instead of "403 forbidden"?
Spring Web Config:
#Configuration
#EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
private final UserDetailsServiceImpl userDetailsService;
#Autowired
public WebSecurityConfig(UserDetailsServiceImpl userDetailsService) {
this.userDetailsService = userDetailsService;
}
#Override
protected void configure(HttpSecurity http) throws Exception {
JWTAuthenticationFilter filter = new JWTAuthenticationFilter(authenticationManager());
filter.setFilterProcessesUrl(AUTH_URL);
http.cors().and().csrf().disable().authorizeRequests()
.antMatchers(HttpMethod.POST, SIGN_UP_URL).permitAll()
.anyRequest().authenticated()
.and()
.addFilter(filter)
.addFilter(new JWTAuthorizationFilter(authenticationManager()))
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
}
#Override
public void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder());
}
#Bean
public BCryptPasswordEncoder bCryptPasswordEncoder() {
return new BCryptPasswordEncoder();
}
#Bean
CorsConfigurationSource corsConfigurationSource() {
final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
source.registerCorsConfiguration("/**", new CorsConfiguration().applyPermitDefaultValues());
return source;
}
}
JWTAuthenticationFilter
private final AuthenticationManager authenticationManager;
#Autowired
public JWTAuthenticationFilter(AuthenticationManager authenticationManager) {
this.authenticationManager = authenticationManager;
}
#Override
public Authentication attemptAuthentication(HttpServletRequest req,
HttpServletResponse res) throws AuthenticationException {
try {
String decoded = new String(Base64.getDecoder().decode(new String(req.getInputStream().readAllBytes())));
AuthenticationDetails details = new Gson().fromJson(decoded, AuthenticationDetails.class);
return authenticationManager.authenticate(
new UsernamePasswordAuthenticationToken(
details.getUsername(),
details.getPassword(),
new ArrayList<>()));
} catch (TokenExpiredException e) {
req.setAttribute("expired", e.getMessage());
throw new TokenExpiredException(e.getMessage());
} catch (Exception e){
throw new RuntimeException(e);
}
}
#Override
protected void successfulAuthentication(HttpServletRequest req,
HttpServletResponse res,
FilterChain chain,
Authentication auth) throws IOException, ServletException {
String token = JWT.create()
.withSubject(((User) auth.getPrincipal()).getUsername())
.withExpiresAt(new Date(System.currentTimeMillis() + EXPIRATION_TIME))
.sign(Algorithm.HMAC512(SECRET.getBytes()));
res.addHeader(HEADER_STRING, TOKEN_PREFIX + token);
}
}
JWTAuthorizationFilter
public JWTAuthorizationFilter(AuthenticationManager authManager) {
super(authManager);
}
#Override
protected void doFilterInternal(HttpServletRequest req,
HttpServletResponse res,
FilterChain chain) throws IOException, ServletException {
String header = req.getHeader(HEADER_STRING);
if (header == null || !header.startsWith(TOKEN_PREFIX)) {
chain.doFilter(req, res);
return;
}
UsernamePasswordAuthenticationToken authentication = getAuthentication(req);
SecurityContextHolder.getContext().setAuthentication(authentication);
chain.doFilter(req, res);
}
private UsernamePasswordAuthenticationToken getAuthentication(HttpServletRequest request) {
String token = request.getHeader(HEADER_STRING);
if (token != null) {
String user = JWT.require(Algorithm.HMAC512(SECRET.getBytes()))
.build()
.verify(token.replace(TOKEN_PREFIX, ""))
.getSubject();
if (user != null) {
return new UsernamePasswordAuthenticationToken(user, null, new ArrayList<>());
}
return null;
}
return null;
}
}

If you are extending your JWTAuthenticationFilter from AbstractAuthenticationProcessingFilter, you can override unsuccessfulAuthenticationlike below:
#Override
protected void unsuccessfulAuthentication(
HttpServletRequest request, HttpServletResponse response, AuthenticationException failed)
throws IOException, ServletException {
SecurityContextHolder.clearContext();
failureHandler.onAuthenticationFailure(request, response, failed);
}
Now, as you can see, I've delegated the failure processing to my failureHandler which is of type org.springframework.security.web.authentication.AuthenticationFailureHandler.
For this you need to register your custom failure handler. You can do that by implementing your handler from org.springframework.security.web.authentication.AuthenticationFailureHandler and override onAuthenticationFailure, with checking the instance of your exception thrown from JWTAuthenticationFilter, like this:
#Component
public class MyAuthFailureHandler implements AuthenticationFailureHandler {
private final ObjectMapper mapper;
#Autowired
public MyAuthFailureHandler(ObjectMapper mapper) {
this.mapper = mapper;
}
#Override
public void onAuthenticationFailure(
HttpServletRequest request, HttpServletResponse response, AuthenticationException e)
throws IOException, ServletException {
response.setStatus(HttpStatus.UNAUTHORIZED.value());
response.setContentType(MediaType.APPLICATION_JSON_VALUE);
if (e instanceof BadCredentialsException) {
mapper.writeValue(
response.getWriter(),
ErrorResponse.of(
"Invalid username or password", ErrorCode.AUTHENTICATION, HttpStatus.UNAUTHORIZED));
} else if (e instanceof JwtExpiredTokenException) {
mapper.writeValue(
response.getWriter(),
ErrorResponse.of(
"Token has expired", ErrorCode.JWT_TOKEN_EXPIRED, HttpStatus.UNAUTHORIZED));
} else if (e instanceof AuthMethodNotSupportedException) {
mapper.writeValue(
response.getWriter(),
ErrorResponse.of(e.getMessage(), ErrorCode.AUTHENTICATION, HttpStatus.UNAUTHORIZED));
} else if (e instanceof TokenEncryptionException) {
mapper.writeValue(
response.getWriter(),
ErrorResponse.of(e.getMessage(), ErrorCode.AUTHENTICATION, HttpStatus.UNAUTHORIZED));
} else if (e instanceof InvalidJwtAuthenticationTokenException) {
mapper.writeValue(
response.getWriter(),
ErrorResponse.of(e.getMessage(), ErrorCode.AUTHENTICATION, HttpStatus.UNAUTHORIZED));
}
mapper.writeValue(
response.getWriter(),
ErrorResponse.of(
"Authentication failed", ErrorCode.AUTHENTICATION, HttpStatus.UNAUTHORIZED));
}

Springboot how to validate token on Zuul microservice

I am new to Springboot and im trying to filter requests through a Zuul API gateway however i get the error below :
AnonymousAuthenticationToken cannot be cast to org.aacctt.ms.auth.security.JWTAuthentication
When i put a breakpoint i get a null header/token string value when the request reaches the authentication service from zuul gateway, this happens for protected requests that require an authorization token.
My aim is to be able to verify the token sent by clients so that i can allow the client's request to protected endpoints or reject it.
Im not sure what im doing wrong here is my code:
Auth Service
#Component
public class JWTAuthorizationFilter extends GenericFilterBean {
private static final Logger LOG = LoggerFactory.getLogger(JWTAuthorizationFilter.class);
private static final String HEADER_STRING = "Authorization";
public static final String TOKEN_PREFIX = "Bearer ";
#Value("${jwt.encryption.secret}")
private String SECRET;
#Value("${jwt.access.token.expiration.seconds}")
private long EXPIRATION_TIME_IN_SECONDS;
public String generateAccessToken(long userId) {
return JWT.create()
.withSubject(String.valueOf(userId))
.withIssuedAt(new Date())
.withExpiresAt(new Date(System.currentTimeMillis() + EXPIRATION_TIME_IN_SECONDS * 1000))
.sign(Algorithm.HMAC256(SECRET.getBytes()));
}
#Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
HttpServletRequest httpRequest = (HttpServletRequest) request;
HttpServletResponse httpResponse = (HttpServletResponse) response;
String header = httpRequest.getHeader(HEADER_STRING); // this is null
if (header == null || !header.startsWith(TOKEN_PREFIX)) {
chain.doFilter(httpRequest, httpResponse);
return;
}
SecurityContextHolder.getContext().setAuthentication(getAuthentication(header));
chain.doFilter(httpRequest, httpResponse);
}
private Authentication getAuthentication(String token) {
final String username;
try {
DecodedJWT jwt = JWT.require(Algorithm.HMAC256(SECRET.getBytes()))
.build()
.verify(token.replace(TOKEN_PREFIX, ""));
username = jwt.getSubject();
} catch (JWTVerificationException e) {
LOG.debug("Invalid JWT", e);
return null;
}
final Long userId;
try {
userId = Long.valueOf(username);
} catch (NumberFormatException e) {
LOG.debug("Invalid JWT. Username is not an user ID");
return null;
}
LOG.debug("Valid JWT. User ID: " + userId);
return new JWTAuthentication(userId);
}
}
WebSecurityConfig
#Configuration
#EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
private final JWTAuthorizationFilter jwtAuthorizationFilter;
public WebSecurityConfig(JWTAuthorizationFilter jwtAuthorizationFilter) {
this.jwtAuthorizationFilter = jwtAuthorizationFilter;
}
#Bean
public AuthenticationEntryPoint authenticationEntryPoint() {
return (request, response, authException) -> response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
}
#Override
protected void configure(HttpSecurity http) throws Exception {
http.cors().disable();
http.csrf().disable();
http.addFilterAfter(jwtAuthorizationFilter, BasicAuthenticationFilter.class);
http.authorizeRequests()
.antMatchers("/**").permitAll()
.antMatchers(AccountController.PATH_POST_SIGN_UP).permitAll()
.antMatchers(AccountController.PATH_POST_REFRESH).permitAll()
.antMatchers(AccountController.PATH_POST_LOGIN).permitAll()
.antMatchers("/v2/api-docs",
"/swagger-resources/configuration/ui",
"/swagger-resources",
"/swagger-resources/configuration/security",
"/swagger-ui.html",
"/webjars/**").permitAll()
.anyRequest().authenticated()
;
http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
}
#Bean
public PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
}
JWTAuthentication
public class JWTAuthentication implements Authentication {
private final long userId;
public JWTAuthentication(long userId) {
this.userId = userId;
}
#Override public Collection<? extends GrantedAuthority> getAuthorities() {
return Collections.emptySet();
}
#Override public Object getCredentials() {
return null;
}
#Override public Object getDetails() {
return null;
}
public long getUserId() {
return userId;
}
#Override public Long getPrincipal() {
return userId;
}
#Override public boolean isAuthenticated() {
return true;
}
#Override public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException {
throw new UnsupportedOperationException("JWT authentication is always authenticated");
}
#Override public String getName() {
return String.valueOf(userId);
}
}
SecurityService
#Service
public class SecurityService {
public long getLoggedUserId() {
JWTAuthentication authentication = (JWTAuthentication) SecurityContextHolder.getContext().getAuthentication();
return authentication.getUserId();
}
}
Zuul Gateway
public class AuthorizationFilter extends BasicAuthenticationFilter {
private static final Logger LOG = LoggerFactory.getLogger(AuthorizationFilter.class);
private static final String HEADER_STRING = "Authorization";
public static final String TOKEN_PREFIX = "Bearer ";
Environment environment;
public AuthorizationFilter(AuthenticationManager authManager, Environment environment) {
super(authManager);
this.environment = environment;
}
#Override
protected void doFilterInternal(HttpServletRequest req,
HttpServletResponse res,
FilterChain chain) throws IOException, ServletException {
String authorizationHeader = req.getHeader(environment.getProperty("authorization.token.header.name"));
if (authorizationHeader == null || !authorizationHeader.startsWith(environment.getProperty("authorization.token.header.prefix"))) {
chain.doFilter(req, res);
return;
}
UsernamePasswordAuthenticationToken authentication = getAuthentication(req);
SecurityContextHolder.getContext().setAuthentication(authentication);
chain.doFilter(req, res);
}
private UsernamePasswordAuthenticationToken getAuthentication(HttpServletRequest req) {
String token = req.getHeader(HEADER_STRING);
final String username;
try {
DecodedJWT jwt = JWT.require(Algorithm.HMAC256(environment.getProperty("token.secret").getBytes()))
.build()
.verify(token.replace(TOKEN_PREFIX, ""));
username = jwt.getSubject();
} catch (JWTVerificationException e) {
LOG.debug("Invalid JWT", e);
return null;
}
final Long userId;
try {
userId = Long.valueOf(username);
} catch (NumberFormatException e) {
LOG.debug("Invalid JWT. Username is not an user ID");
return null;
}
LOG.debug("Valid JWT. User ID: " + userId);
return new UsernamePasswordAuthenticationToken(userId, null, new ArrayList<>());
}
}

The issue is the sensitive header, Authorization is sensitive header by default in Zuul, you just need to override the sensitive headers.
zuul:
sensitive-headers:
-
By setting this property in Zuul gateway application.yml it route request to auth service with the Authorization header
Reference only:
Auth Service reference
JWT based authentication
https://github.com/nikhilmalavia/SpringBootJWT.git

JWT authentication without database access

I am new to JWT. I create my own microservice and want to introduce JWT authentication. I have one website that issues a token and in the other I want to check the correctness of this token. I want to do this without connecting the second site to db. This approach seems to me appropriate and best for user data.
I have following payload of token:
{
"sub": "Marek",
"auth": [
{
"authority": "ROLE_USER"
}
],
"iat": 1574091010,
"exp": 1574091210
}
Its my code:
WebSecurityConfig
#Autowired
private JwtTockenCreator jwtTockenCreator;
#Override
protected void configure(HttpSecurity http) throws Exception {
http.csrf().disable();
http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
http.authorizeRequests()
.antMatchers("/user/login").permitAll()
.antMatchers("/user/addUser").permitAll()
.anyRequest()
.authenticated();
http.exceptionHandling().accessDeniedPage("/login");
http.apply(new JWTConfigurer(jwtTockenCreator));
}
#Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
}
#Bean
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
JwtTokenFilter
public class JwtTokenFilter extends OncePerRequestFilter {
private JwtTockenCreator jwtTockenCreator;
public JwtTokenFilter(JwtTockenCreator jwtTockenCreator) {
this.jwtTockenCreator = jwtTockenCreator;
}
#Override
protected void doFilterInternal(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse,
FilterChain filterChain) throws ServletException, IOException {
String token = jwtTockenCreator.resolveToken(httpServletRequest);
try {
if (token != null && jwtTockenCreator.validateToken(token)) {
Authentication auth = jwtTockenCreator.getAuthentication(token);
SecurityContextHolder.getContext().setAuthentication(auth);
}
} catch (CustomException ex) {
// this is very important, since it guarantees the user is not authenticated at
// all
SecurityContextHolder.clearContext();
httpServletResponse.sendError(ex.getHttpStatus().value(), ex.getMessage());
return;
}
filterChain.doFilter(httpServletRequest, httpServletResponse);
}
}
JwtTockenCreator
public class JwtTockenCreator {
#Value("${security.secretKey}")
private String secretKey;
#PostConstruct
protected void init() {
secretKey = Base64.getEncoder().encodeToString(secretKey.getBytes());
}
public Authentication getAuthentication(String token) {
Claims claims = Jwts.parser()
.setSigningKey(secretKey)
.parseClaimsJws(token)
.getBody();
Collection<? extends GrantedAuthority> authorities = Arrays.asList(claims.get(secretKey).toString().split(",")).stream()
.map(authority -> new SimpleGrantedAuthority(authority)).collect(Collectors.toList());
User principal = new User(claims.getSubject(), "", authorities);
return new UsernamePasswordAuthenticationToken( principal,"",authorities);
}
public String getUsernameFromToken(String token) {
return Jwts.parser().setSigningKey(secretKey).parseClaimsJws(token).getBody().getSubject();
}
public String resolveToken(HttpServletRequest req) {
String bearerToken = req.getHeader("Authorization");
if (bearerToken != null && bearerToken.startsWith("Bearer ")) {
return bearerToken.substring(7);
}
return null;
}
public boolean validateToken(String token) {
try {
Jwts.parser().setSigningKey(secretKey).parseClaimsJws(token);
return true;
} catch (JwtException | IllegalArgumentException e) {
throw new CustomException("Expired or invalid JWT token", HttpStatus.INTERNAL_SERVER_ERROR);
}
}
}
JWTConfigurer
public class JWTConfigurer extends SecurityConfigurerAdapter<DefaultSecurityFilterChain, HttpSecurity> {
private JwtTockenCreator jwtTockenCreator;
public JWTConfigurer(JwtTockenCreator jwtTockenCreator) {
this.jwtTockenCreator = jwtTockenCreator;
}
#Override
public void configure(HttpSecurity http) throws Exception {
JwtTokenFilter customFilter = new JwtTokenFilter(jwtTockenCreator);
http.addFilterBefore(customFilter, UsernamePasswordAuthenticationFilter.class);
}
}
UserController
#CrossOrigin
#RestController
#RequestMapping("/user")
public class UserController {
#Autowired
RestTemplate restTemplate;
#Value("${hostname}")
public String hostname;
#Value("${user.port}")
public String userPort;
#PostMapping("/login")
public ResponseEntity<String> login(#RequestBody User user) {
String urlUser = hostname + userPort + "/user/login";
String token = restTemplate.postForObject(urlUser, user, String.class);
return ResponseEntity.ok(token);
}
#PreAuthorize("hasRole('USER')")
#PostMapping("/addUser")
public ResponseEntity<String> registerAction(#RequestBody User user) {
String urlUser = hostname + userPort + "/user/addUser";
String token = restTemplate.postForObject(urlUser, user, String.class);
return ResponseEntity.ok(token);
}
}
In Eclipse doesn't give any errors. That's why I don't know what I'm doing wrong
when I want to call / user / addUser and add a new user nothing happens. In the User service I call, I have a function responsible for adding users and it works correctly when I refer to it directly. And if I want to do it through my Rest Api it doesn't work anymore. And it is my problem that I do not know what can happen because I have no mistake. I remind you that I am still learning and I am asking for understanding