I am trying to build a Spring MVC application and securing it with Spring Security OAuth2 and the provider is Google. I was able to get the web app working without security and with form login. However, I am not able to get OAuth with google to work. Google app setup is fine as I can get the call backs etc to work with a non Spring Security app.
My security config is as follows:
<?xml version="1.0" encoding="UTF-8"?>
<b:beans xmlns:sec="http://www.springframework.org/schema/security"
xmlns:b="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd">
<sec:http use-expressions="true" entry-point-ref="clientAuthenticationEntryPoint">
<sec:http-basic/>
<sec:logout/>
<sec:anonymous enabled="false"/>
<sec:intercept-url pattern="/**" access="isFullyAuthenticated()"/>
<sec:custom-filter ref="oauth2ClientContextFilter" after="EXCEPTION_TRANSLATION_FILTER"/>
<sec:custom-filter ref="googleAuthenticationFilter" before="FILTER_SECURITY_INTERCEPTOR"/>
</sec:http>
<b:bean id="clientAuthenticationEntryPoint" class="org.springframework.security.oauth2.provider.error.OAuth2AuthenticationEntryPoint"/>
<sec:authentication-manager alias="alternateAuthenticationManager">
<sec:authentication-provider>
<sec:user-service>
<sec:user name="user" password="password" authorities="DOMAIN_USER"/>
</sec:user-service>
</sec:authentication-provider>
</sec:authentication-manager>
</b:beans>
The OAuth2 protected resource is as follows:
@Configuration
@EnableOAuth2Client
class ResourceConfiguration {
@Autowired
private Environment env;
@Resource
@Qualifier("accessTokenRequest")
private AccessTokenRequest accessTokenRequest;
@Bean
public OAuth2ProtectedResourceDetails googleResource() {
AuthorizationCodeResourceDetails details = new AuthorizationCodeResourceDetails();
details.setId("google-app");
details.setClientId(env.getProperty("google.client.id"));
details.setClientSecret(env.getProperty("google.client.secret"));
details.setAccessTokenUri(env.getProperty("google.accessTokenUri"));
details.setUserAuthorizationUri(env.getProperty("google.userAuthorizationUri"));
details.setTokenName(env.getProperty("google.authorization.code"));
String commaSeparatedScopes = env.getProperty("google.auth.scope");
details.setScope(parseScopes(commaSeparatedScopes));
details.setPreEstablishedRedirectUri(env.getProperty("google.preestablished.redirect.url"));
details.setUseCurrentUri(false);
details.setAuthenticationScheme(AuthenticationScheme.query);
details.setClientAuthenticationScheme(AuthenticationScheme.form);
return details;
}
private List<String> parseScopes(String commaSeparatedScopes) {
List<String> scopes = newArrayList();
Collections.addAll(scopes, commaSeparatedScopes.split(","));
return scopes;
}
@Bean
public OAuth2RestTemplate googleRestTemplate() {
return new OAuth2RestTemplate(googleResource(), new DefaultOAuth2ClientContext(accessTokenRequest));
}
@Bean
public AbstractAuthenticationProcessingFilter googleAuthenticationFilter() {
return new GoogleOAuthentication2Filter(new GoogleAppsDomainAuthenticationManager(), googleRestTemplate(), "https://accounts.google.com/o/oauth2/auth", "http://localhost:9000");
}
}
The custom authentication filter which I have written to throw a Redirect exception to get the OAuth2 authorization is as follows:
@Override
public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException, IOException, ServletException {
try {
logger.info("OAuth2 Filter Triggered!! for path {} {}", request.getRequestURI(), request.getRequestURL().toString());
logger.info("OAuth2 Filter hashCode {} request hashCode {}", this.hashCode(), request.hashCode());
String code = request.getParameter("code");
Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
logger.info("Code is {} and authentication is {}", code, authentication == null ? null : authentication.isAuthenticated());
// not authenticated
if (requiresRedirectForAuthentication(code)) {
URI authURI = new URI(googleAuthorizationUrl);
logger.info("Posting to {} to trigger auth redirect", authURI);
String url = "https://www.googleapis.com/oauth2/v2/userinfo?access_token=" + oauth2RestTemplate.getAccessToken();
logger.info("Getting profile data from {}", url);
// Should throw RedirectRequiredException
oauth2RestTemplate.getForEntity(url, GoogleProfile.class);
// authentication in progress
return null;
} else {
logger.info("OAuth callback received");
// get user profile and prepare the authentication token object.
String url = "https://www.googleapis.com/oauth2/v2/userinfo?access_token=" + oauth2RestTemplate.getAccessToken();
logger.info("Getting profile data from {}", url);
ResponseEntity<GoogleProfile> forEntity = oauth2RestTemplate.getForEntity(url, GoogleProfile.class);
GoogleProfile profile = forEntity.getBody();
CustomOAuth2AuthenticationToken authenticationToken = getOAuth2Token(profile.getEmail());
authenticationToken.setAuthenticated(false);
Authentication authenticate = getAuthenticationManager().authenticate(authenticationToken);
logger.info("Final authentication is {}", authenticate == null ? null : authenticate.isAuthenticated());
return authenticate;
}
} catch (URISyntaxException e) {
Throwables.propagate(e);
}
return null;
}
The filter chain sequence from the Spring web app is as follows:
o.s.b.c.e.ServletRegistrationBean - Mapping servlet: 'dispatcherServlet' to [/]
o.s.b.c.e.FilterRegistrationBean - Mapping filter: 'metricFilter' to: [/*]
o.s.b.c.e.FilterRegistrationBean - Mapping filter: 'oauth2ClientContextFilter' to: [/*]
o.s.b.c.e.FilterRegistrationBean - Mapping filter: 'googleOAuthFilter' to: [/*]
o.s.b.c.e.FilterRegistrationBean - Mapping filter: 'org.springframework.security.filterChainProxy' to: [/*]
o.s.b.c.e.FilterRegistrationBean - Mapping filter: 'org.springframework.security.web.access.intercept.FilterSecurityInterceptor#0' to: [/*]
o.s.b.c.e.FilterRegistrationBean - Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
o.s.b.c.e.FilterRegistrationBean - Mapping filter: 'applicationContextIdFilter' to: [/*]
o.s.b.c.e.FilterRegistrationBean - Mapping filter: 'webRequestLoggingFilter' to: [/*]
The redirect to Google works fine and I get the callback to the filter and the authentication is successful. However after that, the request results in a redirect and it invokes the filter again (the request is the same, I have checked the hasCode). On the second call the authentication in the SecurityContext is null. As part of the first authentication call the Authentication object was populated in the security context, so why does it disappear?
I am working with Spring Security for the first time so may have made newbie mistake.
