Spring Boot 1.3.3 #EnableResourceServer and #EnableOAuth2Sso at the same time - spring

Question

I want my server be a ResourceServer, which can accept a Bearer Access token
However, If such token doesn't exist, I want to use the OAuth2Server to authenticate my user.
I try to do like:
#Configuration
#EnableOAuth2Sso
#EnableResourceServer
public class SecurityConfiguration extends WebSecurityConfigurerAdapter{
#Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().anyRequest().authenticated();
}
}
However, in this case, only the #EnableResourceServer annotation works. It returns
Full authentication is required to access this resource
And do not redirect me to the login page
I mentioned that the #Order is important, if I add the #Order(0) annotation,
I will be redirect to the login page, however, I cannot access my resource with the access_token in Http header:
Authorization : Bearer 142042b2-342f-4f19-8f53-bea0bae061fc
How can I achieve my goal? I want it use Access token and SSO at the same time.
Thanks~

Answer 1

Using both configuration on same request would be ambiguous. There could be some solution for that, but more clear to define separate request groups:
OAuth2Sso: for users coming from a browser, we want to redirect them to the authentication provider for the token
ResourceServer: usually for api requests, coming with a token they got from somewhere (most probably from same authentication provider)
For achieving this, separate the configurations with request matcher:
#Configuration
#EnableResourceServer
public class ResourceServerConfiguration extends ResourceServerConfigurerAdapter {
#Bean("resourceServerRequestMatcher")
public RequestMatcher resources() {
return new AntPathRequestMatcher("/resources/**");
}
#Override
public void configure(final HttpSecurity http) throws Exception {
http
.requestMatcher(resources()).authorizeRequests()
.anyRequest().authenticated();
}
}
And exclude these from the sso filter chain:
#Configuration
#EnableOAuth2Sso
public class SsoSecurityConfiguration extends WebSecurityConfigurerAdapter {
#Autowired
#Qualifier("resourceServerRequestMatcher")
private RequestMatcher resources;
#Override
protected void configure(final HttpSecurity http) throws Exception {
RequestMatcher nonResoures = new NegatedRequestMatcher(resources);
http
.requestMatcher(nonResoures).authorizeRequests()
.anyRequest().authenticated();
}
}
And put all your resources under /resources/**
Of course in this case both will use the same oauth2 configuration (accessTokenUri, jwt.key-value, etc.)
UPDATE1:
Actually you can achieve your original goal by using this request matcher for the above configuration:
new RequestHeaderRequestMatcher("Authorization")
UPDATE2:
(Explanation of #sid-morad's comment)
Spring Security creates a filter chain for each configuration. The request matcher for each filter chain is evaluated in the order of the configurations.
WebSecurityConfigurerAdapter has default order 100, and ResourceServerConfiguration is ordered 3 by default. Which means ResourceServerConfiguration's request matcher evaluated first. This order can be overridden for these configurations like:
#Configuration
#EnableResourceServer
public class ResourceServerConfiguration extends ResourceServerConfigurerAdapter {
#Autowired
private org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfiguration configuration;
#PostConstruct
public void setSecurityConfigurerOrder() {
configuration.setOrder(3);
}
...
}
#Configuration
#EnableOAuth2Sso
#Order(100)
public class SsoSecurityConfiguration extends WebSecurityConfigurerAdapter {
...
}
So yes, request matcher is not needed for SsoSecurityConfiguration in the above sample. But good to know the reasons behind :)