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Advanced Configuration
HttpSecurity.oauth2Login()
provides a number of configuration options for customizing OAuth 2.0 Login.
The main configuration options are grouped into their protocol endpoint counterparts.
For example, oauth2Login().authorizationEndpoint()
allows configuring the Authorization Endpoint, whereas oauth2Login().tokenEndpoint()
allows configuring the Token Endpoint.
The following code shows an example:
-
Java
-
Kotlin
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2Login(oauth2 -> oauth2
.authorizationEndpoint(authorization -> authorization
...
)
.redirectionEndpoint(redirection -> redirection
...
)
.tokenEndpoint(token -> token
...
)
.userInfoEndpoint(userInfo -> userInfo
...
)
);
return http.build();
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
oauth2Login {
authorizationEndpoint {
...
}
redirectionEndpoint {
...
}
tokenEndpoint {
...
}
userInfoEndpoint {
...
}
}
}
return http.build()
}
}
The main goal of the oauth2Login()
DSL was to closely align with the naming, as defined in the specifications.
The OAuth 2.0 Authorization Framework defines the Protocol Endpoints as follows:
The authorization process utilizes two authorization server endpoints (HTTP resources):
-
Authorization Endpoint: Used by the client to obtain authorization from the resource owner via user-agent redirection.
-
Token Endpoint: Used by the client to exchange an authorization grant for an access token, typically with client authentication.
As well as one client endpoint:
-
Redirection Endpoint: Used by the authorization server to return responses containing authorization credentials to the client via the resource owner user-agent.
The OpenID Connect Core 1.0 specification defines the UserInfo Endpoint as follows:
The UserInfo Endpoint is an OAuth 2.0 Protected Resource that returns claims about the authenticated end-user. To obtain the requested claims about the end-user, the client makes a request to the UserInfo Endpoint by using an access token obtained through OpenID Connect Authentication. These claims are normally represented by a JSON object that contains a collection of name-value pairs for the claims.
The following code shows the complete configuration options available for the oauth2Login()
DSL:
-
Java
-
Kotlin
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2Login(oauth2 -> oauth2
.clientRegistrationRepository(this.clientRegistrationRepository())
.authorizedClientRepository(this.authorizedClientRepository())
.authorizedClientService(this.authorizedClientService())
.loginPage("/login")
.authorizationEndpoint(authorization -> authorization
.baseUri(this.authorizationRequestBaseUri())
.authorizationRequestRepository(this.authorizationRequestRepository())
.authorizationRequestResolver(this.authorizationRequestResolver())
)
.redirectionEndpoint(redirection -> redirection
.baseUri(this.authorizationResponseBaseUri())
)
.tokenEndpoint(token -> token
.accessTokenResponseClient(this.accessTokenResponseClient())
)
.userInfoEndpoint(userInfo -> userInfo
.userAuthoritiesMapper(this.userAuthoritiesMapper())
.userService(this.oauth2UserService())
.oidcUserService(this.oidcUserService())
)
);
return http.build();
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
oauth2Login {
clientRegistrationRepository = clientRegistrationRepository()
authorizedClientRepository = authorizedClientRepository()
authorizedClientService = authorizedClientService()
loginPage = "/login"
authorizationEndpoint {
baseUri = authorizationRequestBaseUri()
authorizationRequestRepository = authorizationRequestRepository()
authorizationRequestResolver = authorizationRequestResolver()
}
redirectionEndpoint {
baseUri = authorizationResponseBaseUri()
}
tokenEndpoint {
accessTokenResponseClient = accessTokenResponseClient()
}
userInfoEndpoint {
userAuthoritiesMapper = userAuthoritiesMapper()
userService = oauth2UserService()
oidcUserService = oidcUserService()
}
}
}
return http.build()
}
}
In addition to the oauth2Login()
DSL, XML configuration is also supported.
The following code shows the complete configuration options available in the security namespace:
<http>
<oauth2-login client-registration-repository-ref="clientRegistrationRepository"
authorized-client-repository-ref="authorizedClientRepository"
authorized-client-service-ref="authorizedClientService"
authorization-request-repository-ref="authorizationRequestRepository"
authorization-request-resolver-ref="authorizationRequestResolver"
access-token-response-client-ref="accessTokenResponseClient"
user-authorities-mapper-ref="userAuthoritiesMapper"
user-service-ref="oauth2UserService"
oidc-user-service-ref="oidcUserService"
login-processing-url="/login/oauth2/code/*"
login-page="/login"
authentication-success-handler-ref="authenticationSuccessHandler"
authentication-failure-handler-ref="authenticationFailureHandler"
jwt-decoder-factory-ref="jwtDecoderFactory"/>
</http>
The following sections go into more detail on each of the configuration options available:
OAuth 2.0 Login Page
By default, the OAuth 2.0 Login Page is auto-generated by the DefaultLoginPageGeneratingFilter
.
The default login page shows each configured OAuth Client with its ClientRegistration.clientName
as a link, which is capable of initiating the Authorization Request (or OAuth 2.0 Login).
In order for DefaultLoginPageGeneratingFilter to show links for configured OAuth Clients, the registered ClientRegistrationRepository needs to also implement Iterable<ClientRegistration> .
See InMemoryClientRegistrationRepository for reference.
|
The link’s destination for each OAuth Client defaults to the following:
OAuth2AuthorizationRequestRedirectFilter.DEFAULT_AUTHORIZATION_REQUEST_BASE_URI + "/{registrationId}"
The following line shows an example:
<a href="/oauth2/authorization/google">Google</a>
To override the default login page, configure oauth2Login().loginPage()
and (optionally) oauth2Login().authorizationEndpoint().baseUri()
.
The following listing shows an example:
-
Java
-
Kotlin
-
Xml
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2Login(oauth2 -> oauth2
.loginPage("/login/oauth2")
...
.authorizationEndpoint(authorization -> authorization
.baseUri("/login/oauth2/authorization")
...
)
);
return http.build();
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
oauth2Login {
loginPage = "/login/oauth2"
authorizationEndpoint {
baseUri = "/login/oauth2/authorization"
}
}
}
return http.build()
}
}
<http>
<oauth2-login login-page="/login/oauth2"
...
/>
</http>
You need to provide a @Controller with a @RequestMapping("/login/oauth2") that is capable of rendering the custom login page.
|
As noted earlier, configuring The following line shows an example:
|
Redirection Endpoint
The Redirection Endpoint is used by the Authorization Server for returning the Authorization Response (which contains the authorization credentials) to the client via the Resource Owner user-agent.
OAuth 2.0 Login leverages the Authorization Code Grant. Therefore, the authorization credential is the authorization code. |
The default Authorization Response baseUri
(redirection endpoint) is /login/oauth2/code/*
, which is defined in OAuth2LoginAuthenticationFilter.DEFAULT_FILTER_PROCESSES_URI
.
If you would like to customize the Authorization Response baseUri
, configure it as shown in the following example:
-
Java
-
Kotlin
-
Xml
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2Login(oauth2 -> oauth2
.redirectionEndpoint(redirection -> redirection
.baseUri("/login/oauth2/callback/*")
...
)
);
return http.build();
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
oauth2Login {
redirectionEndpoint {
baseUri = "/login/oauth2/callback/*"
}
}
}
return http.build()
}
}
<http>
<oauth2-login login-processing-url="/login/oauth2/callback/*"
...
/>
</http>
You also need to ensure the The following listing shows an example:
|
UserInfo Endpoint
The UserInfo Endpoint includes a number of configuration options, as described in the following sub-sections:
Mapping User Authorities
After the user successfully authenticates with the OAuth 2.0 Provider, the OAuth2User.getAuthorities()
(or OidcUser.getAuthorities()
) may be mapped to a new set of GrantedAuthority
instances, which will be supplied to OAuth2AuthenticationToken
when completing the authentication.
OAuth2AuthenticationToken.getAuthorities() is used for authorizing requests, such as in hasRole('USER') or hasRole('ADMIN') .
|
There are a couple of options to choose from when mapping user authorities:
Using a GrantedAuthoritiesMapper
Provide an implementation of GrantedAuthoritiesMapper
and configure it as shown in the following example:
-
Java
-
Kotlin
-
Xml
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2Login(oauth2 -> oauth2
.userInfoEndpoint(userInfo -> userInfo
.userAuthoritiesMapper(this.userAuthoritiesMapper())
...
)
);
return http.build();
}
private GrantedAuthoritiesMapper userAuthoritiesMapper() {
return (authorities) -> {
Set<GrantedAuthority> mappedAuthorities = new HashSet<>();
authorities.forEach(authority -> {
if (OidcUserAuthority.class.isInstance(authority)) {
OidcUserAuthority oidcUserAuthority = (OidcUserAuthority)authority;
OidcIdToken idToken = oidcUserAuthority.getIdToken();
OidcUserInfo userInfo = oidcUserAuthority.getUserInfo();
// Map the claims found in idToken and/or userInfo
// to one or more GrantedAuthority's and add it to mappedAuthorities
} else if (OAuth2UserAuthority.class.isInstance(authority)) {
OAuth2UserAuthority oauth2UserAuthority = (OAuth2UserAuthority)authority;
Map<String, Object> userAttributes = oauth2UserAuthority.getAttributes();
// Map the attributes found in userAttributes
// to one or more GrantedAuthority's and add it to mappedAuthorities
}
});
return mappedAuthorities;
};
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
oauth2Login {
userInfoEndpoint {
userAuthoritiesMapper = userAuthoritiesMapper()
}
}
}
return http.build()
}
private fun userAuthoritiesMapper(): GrantedAuthoritiesMapper = GrantedAuthoritiesMapper { authorities: Collection<GrantedAuthority> ->
val mappedAuthorities = emptySet<GrantedAuthority>()
authorities.forEach { authority ->
if (authority is OidcUserAuthority) {
val idToken = authority.idToken
val userInfo = authority.userInfo
// Map the claims found in idToken and/or userInfo
// to one or more GrantedAuthority's and add it to mappedAuthorities
} else if (authority is OAuth2UserAuthority) {
val userAttributes = authority.attributes
// Map the attributes found in userAttributes
// to one or more GrantedAuthority's and add it to mappedAuthorities
}
}
mappedAuthorities
}
}
<http>
<oauth2-login user-authorities-mapper-ref="userAuthoritiesMapper"
...
/>
</http>
Alternatively, you may register a GrantedAuthoritiesMapper
@Bean
to have it automatically applied to the configuration, as shown in the following example:
-
Java
-
Kotlin
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2Login(withDefaults());
return http.build();
}
@Bean
public GrantedAuthoritiesMapper userAuthoritiesMapper() {
...
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
oauth2Login { }
}
return http.build()
}
@Bean
fun userAuthoritiesMapper(): GrantedAuthoritiesMapper {
...
}
}
Delegation-based strategy with OAuth2UserService
This strategy is advanced compared to using a GrantedAuthoritiesMapper
, however, it’s also more flexible as it gives you access to the OAuth2UserRequest
and OAuth2User
(when using an OAuth 2.0 UserService) or OidcUserRequest
and OidcUser
(when using an OpenID Connect 1.0 UserService).
The OAuth2UserRequest
(and OidcUserRequest
) provides you access to the associated OAuth2AccessToken
, which is very useful in the cases where the delegator needs to fetch authority information from a protected resource before it can map the custom authorities for the user.
The following example shows how to implement and configure a delegation-based strategy using an OpenID Connect 1.0 UserService:
-
Java
-
Kotlin
-
Xml
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2Login(oauth2 -> oauth2
.userInfoEndpoint(userInfo -> userInfo
.oidcUserService(this.oidcUserService())
...
)
);
return http.build();
}
private OAuth2UserService<OidcUserRequest, OidcUser> oidcUserService() {
final OidcUserService delegate = new OidcUserService();
return (userRequest) -> {
// Delegate to the default implementation for loading a user
OidcUser oidcUser = delegate.loadUser(userRequest);
OAuth2AccessToken accessToken = userRequest.getAccessToken();
Set<GrantedAuthority> mappedAuthorities = new HashSet<>();
// TODO
// 1) Fetch the authority information from the protected resource using accessToken
// 2) Map the authority information to one or more GrantedAuthority's and add it to mappedAuthorities
// 3) Create a copy of oidcUser but use the mappedAuthorities instead
oidcUser = new DefaultOidcUser(mappedAuthorities, oidcUser.getIdToken(), oidcUser.getUserInfo());
return oidcUser;
};
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
oauth2Login {
userInfoEndpoint {
oidcUserService = oidcUserService()
}
}
}
return http.build()
}
@Bean
fun oidcUserService(): OAuth2UserService<OidcUserRequest, OidcUser> {
val delegate = OidcUserService()
return OAuth2UserService { userRequest ->
// Delegate to the default implementation for loading a user
var oidcUser = delegate.loadUser(userRequest)
val accessToken = userRequest.accessToken
val mappedAuthorities = HashSet<GrantedAuthority>()
// TODO
// 1) Fetch the authority information from the protected resource using accessToken
// 2) Map the authority information to one or more GrantedAuthority's and add it to mappedAuthorities
// 3) Create a copy of oidcUser but use the mappedAuthorities instead
oidcUser = DefaultOidcUser(mappedAuthorities, oidcUser.idToken, oidcUser.userInfo)
oidcUser
}
}
}
<http>
<oauth2-login oidc-user-service-ref="oidcUserService"
...
/>
</http>
OAuth 2.0 UserService
DefaultOAuth2UserService
is an implementation of an OAuth2UserService
that supports standard OAuth 2.0 Provider’s.
OAuth2UserService obtains the user attributes of the end-user (the resource owner) from the UserInfo Endpoint (by using the access token granted to the client during the authorization flow) and returns an AuthenticatedPrincipal in the form of an OAuth2User .
|
DefaultOAuth2UserService
uses a RestOperations
when requesting the user attributes at the UserInfo Endpoint.
If you need to customize the pre-processing of the UserInfo Request, you can provide DefaultOAuth2UserService.setRequestEntityConverter()
with a custom Converter<OAuth2UserRequest, RequestEntity<?>>
.
The default implementation OAuth2UserRequestEntityConverter
builds a RequestEntity
representation of a UserInfo Request that sets the OAuth2AccessToken
in the Authorization
header by default.
On the other end, if you need to customize the post-handling of the UserInfo Response, you will need to provide DefaultOAuth2UserService.setRestOperations()
with a custom configured RestOperations
.
The default RestOperations
is configured as follows:
RestTemplate restTemplate = new RestTemplate();
restTemplate.setErrorHandler(new OAuth2ErrorResponseErrorHandler());
OAuth2ErrorResponseErrorHandler
is a ResponseErrorHandler
that can handle an OAuth 2.0 Error (400 Bad Request).
It uses an OAuth2ErrorHttpMessageConverter
for converting the OAuth 2.0 Error parameters to an OAuth2Error
.
Whether you customize DefaultOAuth2UserService
or provide your own implementation of OAuth2UserService
, you’ll need to configure it as shown in the following example:
-
Java
-
Kotlin
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2Login(oauth2 -> oauth2
.userInfoEndpoint(userInfo -> userInfo
.userService(this.oauth2UserService())
...
)
);
return http.build();
}
private OAuth2UserService<OAuth2UserRequest, OAuth2User> oauth2UserService() {
...
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
oauth2Login {
userInfoEndpoint {
userService = oauth2UserService()
// ...
}
}
}
return http.build()
}
private fun oauth2UserService(): OAuth2UserService<OAuth2UserRequest, OAuth2User> {
// ...
}
}
OpenID Connect 1.0 UserService
OidcUserService
is an implementation of an OAuth2UserService
that supports OpenID Connect 1.0 Provider’s.
The OidcUserService
leverages the DefaultOAuth2UserService
when requesting the user attributes at the UserInfo Endpoint.
If you need to customize the pre-processing of the UserInfo Request and/or the post-handling of the UserInfo Response, you will need to provide OidcUserService.setOauth2UserService()
with a custom configured DefaultOAuth2UserService
.
Whether you customize OidcUserService
or provide your own implementation of OAuth2UserService
for OpenID Connect 1.0 Provider’s, you’ll need to configure it as shown in the following example:
-
Java
-
Kotlin
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.oauth2Login(oauth2 -> oauth2
.userInfoEndpoint(userInfo -> userInfo
.oidcUserService(this.oidcUserService())
...
)
);
return http.build();
}
private OAuth2UserService<OidcUserRequest, OidcUser> oidcUserService() {
...
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
oauth2Login {
userInfoEndpoint {
oidcUserService = oidcUserService()
// ...
}
}
}
return http.build()
}
private fun oidcUserService(): OAuth2UserService<OidcUserRequest, OidcUser> {
// ...
}
}
ID Token Signature Verification
OpenID Connect 1.0 Authentication introduces the ID Token, which is a security token that contains Claims about the Authentication of an End-User by an Authorization Server when used by a Client.
The ID Token is represented as a JSON Web Token (JWT) and MUST be signed using JSON Web Signature (JWS).
The OidcIdTokenDecoderFactory
provides a JwtDecoder
used for OidcIdToken
signature verification. The default algorithm is RS256
but may be different when assigned during client registration.
For these cases, a resolver may be configured to return the expected JWS algorithm assigned for a specific client.
The JWS algorithm resolver is a Function
that accepts a ClientRegistration
and returns the expected JwsAlgorithm
for the client, eg. SignatureAlgorithm.RS256
or MacAlgorithm.HS256
The following code shows how to configure the OidcIdTokenDecoderFactory
@Bean
to default to MacAlgorithm.HS256
for all ClientRegistration
:
-
Java
-
Kotlin
@Bean
public JwtDecoderFactory<ClientRegistration> idTokenDecoderFactory() {
OidcIdTokenDecoderFactory idTokenDecoderFactory = new OidcIdTokenDecoderFactory();
idTokenDecoderFactory.setJwsAlgorithmResolver(clientRegistration -> MacAlgorithm.HS256);
return idTokenDecoderFactory;
}
@Bean
fun idTokenDecoderFactory(): JwtDecoderFactory<ClientRegistration?> {
val idTokenDecoderFactory = OidcIdTokenDecoderFactory()
idTokenDecoderFactory.setJwsAlgorithmResolver { MacAlgorithm.HS256 }
return idTokenDecoderFactory
}
For MAC based algorithms such as HS256 , HS384 or HS512 , the client-secret corresponding to the client-id is used as the symmetric key for signature verification.
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If more than one ClientRegistration is configured for OpenID Connect 1.0 Authentication, the JWS algorithm resolver may evaluate the provided ClientRegistration to determine which algorithm to return.
|
OpenID Connect 1.0 Logout
OpenID Connect Session Management 1.0 allows the ability to log out the End-User at the Provider using the Client. One of the strategies available is RP-Initiated Logout.
If the OpenID Provider supports both Session Management and Discovery, the client may obtain the end_session_endpoint
URL
from the OpenID Provider’s Discovery Metadata.
This can be achieved by configuring the ClientRegistration
with the issuer-uri
, as in the following example:
spring:
security:
oauth2:
client:
registration:
okta:
client-id: okta-client-id
client-secret: okta-client-secret
...
provider:
okta:
issuer-uri: https://dev-1234.oktapreview.com
…and the OidcClientInitiatedLogoutSuccessHandler
, which implements RP-Initiated Logout, may be configured as follows:
-
Java
-
Kotlin
@EnableWebSecurity
public class OAuth2LoginSecurityConfig {
@Autowired
private ClientRegistrationRepository clientRegistrationRepository;
@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http
.authorizeHttpRequests(authorize -> authorize
.anyRequest().authenticated()
)
.oauth2Login(withDefaults())
.logout(logout -> logout
.logoutSuccessHandler(oidcLogoutSuccessHandler())
);
return http.build();
}
private LogoutSuccessHandler oidcLogoutSuccessHandler() {
OidcClientInitiatedLogoutSuccessHandler oidcLogoutSuccessHandler =
new OidcClientInitiatedLogoutSuccessHandler(this.clientRegistrationRepository);
// Sets the location that the End-User's User Agent will be redirected to
// after the logout has been performed at the Provider
oidcLogoutSuccessHandler.setPostLogoutRedirectUri("{baseUrl}");
return oidcLogoutSuccessHandler;
}
}
@EnableWebSecurity
class OAuth2LoginSecurityConfig {
@Autowired
private lateinit var clientRegistrationRepository: ClientRegistrationRepository
@Bean
open fun filterChain(http: HttpSecurity): SecurityFilterChain {
http {
authorizeRequests {
authorize(anyRequest, authenticated)
}
oauth2Login { }
logout {
logoutSuccessHandler = oidcLogoutSuccessHandler()
}
}
return http.build()
}
private fun oidcLogoutSuccessHandler(): LogoutSuccessHandler {
val oidcLogoutSuccessHandler = OidcClientInitiatedLogoutSuccessHandler(clientRegistrationRepository)
// Sets the location that the End-User's User Agent will be redirected to
// after the logout has been performed at the Provider
oidcLogoutSuccessHandler.setPostLogoutRedirectUri("{baseUrl}")
return oidcLogoutSuccessHandler
}
}
OidcClientInitiatedLogoutSuccessHandler supports the {baseUrl} placeholder.
If used, the application’s base URL, like app.example.org , will replace it at request time.
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