Spring Boot OAuth2 manually create new JWT token - spring

Question

At my Spring Boot application I have configured Spring OAuth2 server with JWT tokens.
Also I have added Spring Social configuration in order to be able authenticate users via various Social Networks like Twitter, Facebook and so on.
This is my SpringSocial config:
#Configuration
#EnableSocial
public class SocialConfig extends SocialConfigurerAdapter {
#Bean
public ProviderSignInController providerSignInController(ConnectionFactoryLocator connectionFactoryLocator, UsersConnectionRepository usersConnectionRepository) {
return new ProviderSignInController(connectionFactoryLocator, usersConnectionRepository, new SimpleSignInAdapter(authTokenServices, "client_id", userService));
}
...
}
Also, based on the folksinging answer Integrate Spring Security OAuth2 and Spring Social I have implemented SimpleSignInAdapter in order to handle successful authentication with 3rdparty Social Networks:
public class SimpleSignInAdapter implements SignInAdapter {
final static Logger logger = LoggerFactory.getLogger(SimpleSignInAdapter.class);
public static final String REDIRECT_PATH_BASE = "/#/login";
public static final String FIELD_TOKEN = "access_token";
public static final String FIELD_EXPIRATION_SECS = "expires_in";
private final AuthorizationServerTokenServices authTokenServices;
private final String localClientId;
private final UserService userService;
public SimpleSignInAdapter(AuthorizationServerTokenServices authTokenServices, String localClientId, UserService userService){
this.authTokenServices = authTokenServices;
this.localClientId = localClientId;
this.userService = userService;
}
#Override
public String signIn(String userId, Connection<?> connection, NativeWebRequest request) {
UserDetails userDetails = loadUserById(Long.parseLong(userId));
OAuth2AccessToken oauth2Token = authTokenServices.createAccessToken(convertAuthentication(userDetails));
String redirectUrl = new StringBuilder(REDIRECT_PATH_BASE)
.append("?").append(FIELD_TOKEN).append("=")
.append(encode(oauth2Token.getValue()))
.append("&").append(FIELD_EXPIRATION_SECS).append("=")
.append(oauth2Token.getExpiresIn())
.toString();
return redirectUrl;
}
private OAuth2Authentication convertAuthentication(UserDetails userDetails) {
OAuth2Request request = new OAuth2Request(null, localClientId, null, true, null, null, null, null, null);
return new OAuth2Authentication(request, new UsernamePasswordAuthenticationToken(userDetails, "N/A", userDetails.getAuthorities()));
}
private String encode(String in) {
String res = in;
try {
res = UriUtils.encode(in, "UTF-8");
} catch(UnsupportedEncodingException e){
logger.error("ERROR: unsupported encoding: " + "UTF-8", e);
}
return res;
}
public UserDetails loadUserById(Long id) throws UsernameNotFoundException {
User user = userService.findUserById(id);
if (user == null) {
throw new UsernameNotFoundException("User " + id + " not found.");
}
Set<Permission> permissions = userService.getUserPermissions(user);
return new DBUserDetails(user, permissions);
}
}
Everything works fine except one thing - the following line of code produces plain OAuth2 access token:
OAuth2AccessToken oauth2Token = authTokenServices.createAccessToken(convertAuthentication(userDetails));
but I need to create JWT token instead.
How to create or convert this token to JWT based ? I suppose I can use JwtAccessTokenConverter class for this purpose but don't know how at this moment.

Answer 1

This worked for me, after i wanted my own Custom JWT token.
DefaultTokenServices service = new DefaultTokenServices();
service.setTokenStore(jwtAccessTokenConverter);
service.setTokenEnhancer(jwtAccessTokenConverter);
OAuth2AccessToken token = service.createAccessToken(authentication);
Autowire the jwtAccessTokenConverter
#Autowired
private JwtAccessTokenConverter jwtAccessTokenConverter;

Answer 2

After debugging I have found a solution:
private final TokenEnhancer tokenEnhancer;
...
OAuth2Authentication authentication = convertAuthentication(userDetails);
OAuth2AccessToken accessToken = authTokenServices.createAccessToken(authentication);
accessToken = tokenEnhancer.enhance(accessToken, authentication);