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			48 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| [[oauth2-client-authorization-grants]]
 | ||
| = [[oauth2Client-auth-grant-support]]Authorization Grant Support
 | ||
| 
 | ||
| This section describes Spring Security's support for authorization grants.
 | ||
| 
 | ||
| [[oauth2-client-authorization-code]]
 | ||
| == [[oauth2Client-auth-code-grant]]Authorization Code
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the OAuth 2.0 Authorization Framework for further details on the https://tools.ietf.org/html/rfc6749#section-1.3.1[Authorization Code] grant.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-authorization-code-authorization]]
 | ||
| === Obtaining Authorization
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the https://tools.ietf.org/html/rfc6749#section-4.1.1[Authorization Request/Response] protocol flow for the Authorization Code grant.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-authorization-code-authorization-request]]
 | ||
| === Initiating the Authorization Request
 | ||
| 
 | ||
| The `OAuth2AuthorizationRequestRedirectWebFilter` uses a `ServerOAuth2AuthorizationRequestResolver` to resolve an `OAuth2AuthorizationRequest` and initiate the Authorization Code grant flow by redirecting the end-user's user-agent to the Authorization Server's Authorization Endpoint.
 | ||
| 
 | ||
| The primary role of the `ServerOAuth2AuthorizationRequestResolver` is to resolve an `OAuth2AuthorizationRequest` from the provided web request.
 | ||
| The default implementation `DefaultServerOAuth2AuthorizationRequestResolver` matches on the (default) path `+/oauth2/authorization/{registrationId}+` extracting the `registrationId` and using it to build the `OAuth2AuthorizationRequest` for the associated `ClientRegistration`.
 | ||
| 
 | ||
| Given the following Spring Boot properties for an OAuth 2.0 Client registration:
 | ||
| 
 | ||
| [source,yaml,attrs="-attributes"]
 | ||
| ----
 | ||
| spring:
 | ||
|   security:
 | ||
|     oauth2:
 | ||
|       client:
 | ||
|         registration:
 | ||
|           okta:
 | ||
|             client-id: okta-client-id
 | ||
|             client-secret: okta-client-secret
 | ||
|             authorization-grant-type: authorization_code
 | ||
|             redirect-uri: "{baseUrl}/authorized/okta"
 | ||
|             scope: read, write
 | ||
|         provider:
 | ||
|           okta:
 | ||
|             authorization-uri: https://dev-1234.oktapreview.com/oauth2/v1/authorize
 | ||
|             token-uri: https://dev-1234.oktapreview.com/oauth2/v1/token
 | ||
| ----
 | ||
| 
 | ||
| A request with the base path `/oauth2/authorization/okta` will initiate the Authorization Request redirect by the `OAuth2AuthorizationRequestRedirectWebFilter` and ultimately start the Authorization Code grant flow.
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| The `AuthorizationCodeReactiveOAuth2AuthorizedClientProvider` is an implementation of `ReactiveOAuth2AuthorizedClientProvider` for the Authorization Code grant,
 | ||
| which also initiates the Authorization Request redirect by the `OAuth2AuthorizationRequestRedirectWebFilter`.
 | ||
| ====
 | ||
| 
 | ||
| If the OAuth 2.0 Client is a https://tools.ietf.org/html/rfc6749#section-2.1[Public Client], then configure the OAuth 2.0 Client registration as follows:
 | ||
| 
 | ||
| [source,yaml,attrs="-attributes"]
 | ||
| ----
 | ||
| spring:
 | ||
|   security:
 | ||
|     oauth2:
 | ||
|       client:
 | ||
|         registration:
 | ||
|           okta:
 | ||
|             client-id: okta-client-id
 | ||
|             client-authentication-method: none
 | ||
|             authorization-grant-type: authorization_code
 | ||
|             redirect-uri: "{baseUrl}/authorized/okta"
 | ||
|             # ...
 | ||
| ----
 | ||
| 
 | ||
| Public Clients are supported using https://tools.ietf.org/html/rfc7636[Proof Key for Code Exchange] (PKCE).
 | ||
| If the client is running in an untrusted environment (eg. native application or web browser-based application) and therefore incapable of maintaining the confidentiality of it's credentials, PKCE will automatically be used when the following conditions are true:
 | ||
| 
 | ||
| . `client-secret` is omitted (or empty)
 | ||
| . `client-authentication-method` is set to "none" (`ClientAuthenticationMethod.NONE`)
 | ||
| 
 | ||
| [TIP]
 | ||
| ====
 | ||
| If the OAuth 2.0 Provider supports PKCE for https://tools.ietf.org/html/rfc6749#section-2.1[Confidential Clients], you may (optionally) configure it using `DefaultServerOAuth2AuthorizationRequestResolver.setAuthorizationRequestCustomizer(OAuth2AuthorizationRequestCustomizers.withPkce())`.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-authorization-code-redirect-uri]]
 | ||
| [[oauth2Client-auth-code-redirect-uri]]The `DefaultServerOAuth2AuthorizationRequestResolver` also supports `URI` template variables for the `redirect-uri` using `UriComponentsBuilder`.
 | ||
| 
 | ||
| The following configuration uses all the supported `URI` template variables:
 | ||
| 
 | ||
| [source,yaml,attrs="-attributes"]
 | ||
| ----
 | ||
| spring:
 | ||
|   security:
 | ||
|     oauth2:
 | ||
|       client:
 | ||
|         registration:
 | ||
|           okta:
 | ||
|             # ...
 | ||
|             redirect-uri: "{baseScheme}://{baseHost}{basePort}{basePath}/authorized/{registrationId}"
 | ||
|             # ...
 | ||
| ----
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| `+{baseUrl}+` resolves to `+{baseScheme}://{baseHost}{basePort}{basePath}+`
 | ||
| ====
 | ||
| 
 | ||
| Configuring the `redirect-uri` with `URI` template variables is especially useful when the OAuth 2.0 Client is running behind a xref:features/exploits/http.adoc#http-proxy-server[Proxy Server].
 | ||
| This ensures that the `X-Forwarded-*` headers are used when expanding the `redirect-uri`.
 | ||
| 
 | ||
| [[oauth2-client-authorization-code-authorization-request-resolver]]
 | ||
| === Customizing the Authorization Request
 | ||
| 
 | ||
| One of the primary use cases a `ServerOAuth2AuthorizationRequestResolver` can realize is the ability to customize the Authorization Request with additional parameters above the standard parameters defined in the OAuth 2.0 Authorization Framework.
 | ||
| 
 | ||
| For example, OpenID Connect defines additional OAuth 2.0 request parameters for the https://openid.net/specs/openid-connect-core-1_0.html#AuthRequest[Authorization Code Flow] extending from the standard parameters defined in the https://tools.ietf.org/html/rfc6749#section-4.1.1[OAuth 2.0 Authorization Framework].
 | ||
| One of those extended parameters is the `prompt` parameter.
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| The `prompt` parameter is optional. Space delimited, case sensitive list of ASCII string values that specifies whether the Authorization Server prompts the End-User for re-authentication and consent. The defined values are: `none`, `login`, `consent`, and `select_account`.
 | ||
| ====
 | ||
| 
 | ||
| The following example shows how to configure the `DefaultServerOAuth2AuthorizationRequestResolver` with a `Consumer<OAuth2AuthorizationRequest.Builder>` that customizes the Authorization Request for `oauth2Login()`, by including the request parameter `prompt=consent`.
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @Configuration
 | ||
| @EnableWebFluxSecurity
 | ||
| public class OAuth2LoginSecurityConfig {
 | ||
| 
 | ||
| 	@Autowired
 | ||
| 	private ReactiveClientRegistrationRepository clientRegistrationRepository;
 | ||
| 
 | ||
| 	@Bean
 | ||
| 	public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) {
 | ||
| 		http
 | ||
| 			.authorizeExchange(authorize -> authorize
 | ||
| 				.anyExchange().authenticated()
 | ||
| 			)
 | ||
| 			.oauth2Login(oauth2 -> oauth2
 | ||
| 				.authorizationRequestResolver(
 | ||
| 					authorizationRequestResolver(this.clientRegistrationRepository)
 | ||
| 				)
 | ||
| 			);
 | ||
| 		return http.build();
 | ||
| 	}
 | ||
| 
 | ||
| 	private ServerOAuth2AuthorizationRequestResolver authorizationRequestResolver(
 | ||
| 			ReactiveClientRegistrationRepository clientRegistrationRepository) {
 | ||
| 
 | ||
| 		DefaultServerOAuth2AuthorizationRequestResolver authorizationRequestResolver =
 | ||
| 				new DefaultServerOAuth2AuthorizationRequestResolver(
 | ||
| 						clientRegistrationRepository);
 | ||
| 		authorizationRequestResolver.setAuthorizationRequestCustomizer(
 | ||
| 				authorizationRequestCustomizer());
 | ||
| 
 | ||
| 		return  authorizationRequestResolver;
 | ||
| 	}
 | ||
| 
 | ||
| 	private Consumer<OAuth2AuthorizationRequest.Builder> authorizationRequestCustomizer() {
 | ||
| 		return customizer -> customizer
 | ||
| 					.additionalParameters(params -> params.put("prompt", "consent"));
 | ||
| 	}
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| @Configuration
 | ||
| @EnableWebFluxSecurity
 | ||
| class SecurityConfig {
 | ||
| 
 | ||
|     @Autowired
 | ||
|     private lateinit var customClientRegistrationRepository: ReactiveClientRegistrationRepository
 | ||
| 
 | ||
|     @Bean
 | ||
|     fun securityFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain {
 | ||
|         http {
 | ||
|             authorizeExchange {
 | ||
|                 authorize(anyExchange, authenticated)
 | ||
|             }
 | ||
|             oauth2Login {
 | ||
|                 authorizationRequestResolver = authorizationRequestResolver(customClientRegistrationRepository)
 | ||
|             }
 | ||
|         }
 | ||
| 
 | ||
|         return http.build()
 | ||
|     }
 | ||
| 
 | ||
|     private fun authorizationRequestResolver(
 | ||
|             clientRegistrationRepository: ReactiveClientRegistrationRepository): ServerOAuth2AuthorizationRequestResolver {
 | ||
|         val authorizationRequestResolver = DefaultServerOAuth2AuthorizationRequestResolver(
 | ||
|                 clientRegistrationRepository)
 | ||
|         authorizationRequestResolver.setAuthorizationRequestCustomizer(
 | ||
|                 authorizationRequestCustomizer())
 | ||
|         return authorizationRequestResolver
 | ||
|     }
 | ||
| 
 | ||
|     private fun authorizationRequestCustomizer(): Consumer<OAuth2AuthorizationRequest.Builder> {
 | ||
|         return Consumer { customizer ->
 | ||
|             customizer
 | ||
|                 .additionalParameters { params -> params["prompt"] = "consent" }
 | ||
|         }
 | ||
|     }
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| For the simple use case, where the additional request parameter is always the same for a specific provider, it may be added directly in the `authorization-uri` property.
 | ||
| 
 | ||
| For example, if the value for the request parameter `prompt` is always `consent` for the provider `okta`, than simply configure as follows:
 | ||
| 
 | ||
| [source,yaml]
 | ||
| ----
 | ||
| spring:
 | ||
|   security:
 | ||
|     oauth2:
 | ||
|       client:
 | ||
|         provider:
 | ||
|           okta:
 | ||
|             authorization-uri: https://dev-1234.oktapreview.com/oauth2/v1/authorize?prompt=consent
 | ||
| ----
 | ||
| 
 | ||
| The preceding example shows the common use case of adding a custom parameter on top of the standard parameters.
 | ||
| Alternatively, if your requirements are more advanced, you can take full control in building the Authorization Request URI by simply overriding the `OAuth2AuthorizationRequest.authorizationRequestUri` property.
 | ||
| 
 | ||
| [TIP]
 | ||
| ====
 | ||
| `OAuth2AuthorizationRequest.Builder.build()` constructs the `OAuth2AuthorizationRequest.authorizationRequestUri`, which represents the Authorization Request URI including all query parameters using the `application/x-www-form-urlencoded` format.
 | ||
| ====
 | ||
| 
 | ||
| The following example shows a variation of `authorizationRequestCustomizer()` from the preceding example, and instead overrides the `OAuth2AuthorizationRequest.authorizationRequestUri` property.
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| private Consumer<OAuth2AuthorizationRequest.Builder> authorizationRequestCustomizer() {
 | ||
| 	return customizer -> customizer
 | ||
| 			.authorizationRequestUri(uriBuilder -> uriBuilder
 | ||
| 					.queryParam("prompt", "consent").build());
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| private fun authorizationRequestCustomizer(): Consumer<OAuth2AuthorizationRequest.Builder> {
 | ||
|     return Consumer { customizer: OAuth2AuthorizationRequest.Builder ->
 | ||
|         customizer
 | ||
|                 .authorizationRequestUri { uriBuilder: UriBuilder ->
 | ||
|                     uriBuilder
 | ||
|                             .queryParam("prompt", "consent").build()
 | ||
|                 }
 | ||
|     }
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [[oauth2-client-authorization-code-authorization-request-repository]]
 | ||
| === Storing the Authorization Request
 | ||
| 
 | ||
| The `ServerAuthorizationRequestRepository` is responsible for the persistence of the `OAuth2AuthorizationRequest` from the time the Authorization Request is initiated to the time the Authorization Response is received (the callback).
 | ||
| 
 | ||
| [TIP]
 | ||
| ====
 | ||
| The `OAuth2AuthorizationRequest` is used to correlate and validate the Authorization Response.
 | ||
| ====
 | ||
| 
 | ||
| The default implementation of `ServerAuthorizationRequestRepository` is `WebSessionOAuth2ServerAuthorizationRequestRepository`, which stores the `OAuth2AuthorizationRequest` in the `WebSession`.
 | ||
| 
 | ||
| If you have a custom implementation of `ServerAuthorizationRequestRepository`, you may configure it as shown in the following example:
 | ||
| 
 | ||
| .ServerAuthorizationRequestRepository Configuration
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @Configuration
 | ||
| @EnableWebFluxSecurity
 | ||
| public class OAuth2ClientSecurityConfig {
 | ||
| 
 | ||
| 	@Bean
 | ||
| 	public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) {
 | ||
| 		http
 | ||
| 			.oauth2Client(oauth2 -> oauth2
 | ||
| 				.authorizationRequestRepository(this.authorizationRequestRepository())
 | ||
| 				// ...
 | ||
| 			);
 | ||
| 		return http.build();
 | ||
| 	}
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| @Configuration
 | ||
| @EnableWebFluxSecurity
 | ||
| class OAuth2ClientSecurityConfig {
 | ||
| 
 | ||
|     @Bean
 | ||
|     fun securityFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain {
 | ||
|         http {
 | ||
|             oauth2Client {
 | ||
|                 authorizationRequestRepository = authorizationRequestRepository()
 | ||
|             }
 | ||
|         }
 | ||
| 
 | ||
|         return http.build()
 | ||
|     }
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [[oauth2-client-authorization-code-access-token]]
 | ||
| === Requesting an Access Token
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the https://tools.ietf.org/html/rfc6749#section-4.1.3[Access Token Request/Response] protocol flow for the Authorization Code grant.
 | ||
| ====
 | ||
| 
 | ||
| The default implementation of `ReactiveOAuth2AccessTokenResponseClient` for the Authorization Code grant is `WebClientReactiveAuthorizationCodeTokenResponseClient`, which uses a `WebClient` for exchanging an authorization code for an access token at the Authorization Server’s Token Endpoint.
 | ||
| 
 | ||
| :section-id: authorization-code
 | ||
| :grant-type: Authorization Code
 | ||
| :class-name: WebClientReactiveAuthorizationCodeTokenResponseClient
 | ||
| :grant-request: OAuth2AuthorizationCodeGrantRequest
 | ||
| :leveloffset: +1
 | ||
| include::partial$reactive/oauth2/client/web-client-access-token-response-client.adoc[]
 | ||
| 
 | ||
| :leveloffset: -1
 | ||
| 
 | ||
| [[oauth2-client-authorization-code-access-token-response-client-dsl]]
 | ||
| === Customize using the DSL
 | ||
| 
 | ||
| Whether you customize `{class-name}` or provide your own implementation of `ReactiveOAuth2AccessTokenResponseClient`, you can configure it using the DSL (as an alternative to <<oauth2-client-authorization-code-access-token-response-client-bean,publishing a bean>>) as shown in the following example:
 | ||
| 
 | ||
| .Access Token Response Configuration via DSL
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @Configuration
 | ||
| @EnableWebFluxSecurity
 | ||
| public class OAuth2ClientSecurityConfig {
 | ||
| 
 | ||
| 	@Bean
 | ||
| 	public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) {
 | ||
| 		http
 | ||
| 			.oauth2Client(oauth2 -> oauth2
 | ||
| 				.authenticationManager(this.authorizationCodeAuthenticationManager())
 | ||
| 				// ...
 | ||
| 			);
 | ||
| 		return http.build();
 | ||
| 	}
 | ||
| 
 | ||
| 	private ReactiveAuthenticationManager authorizationCodeAuthenticationManager() {
 | ||
| 		WebClientReactiveAuthorizationCodeTokenResponseClient accessTokenResponseClient =
 | ||
| 				new WebClientReactiveAuthorizationCodeTokenResponseClient();
 | ||
| 		// ...
 | ||
| 
 | ||
| 		return new OAuth2AuthorizationCodeReactiveAuthenticationManager(accessTokenResponseClient);
 | ||
| 	}
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| @Configuration
 | ||
| @EnableWebFluxSecurity
 | ||
| class OAuth2ClientSecurityConfig {
 | ||
| 
 | ||
|     @Bean
 | ||
|     fun securityFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain {
 | ||
|         http {
 | ||
|             oauth2Client {
 | ||
|                 authenticationManager = authorizationCodeAuthenticationManager()
 | ||
|             }
 | ||
|         }
 | ||
| 
 | ||
|         return http.build()
 | ||
|     }
 | ||
| 
 | ||
|     private fun authorizationCodeAuthenticationManager(): ReactiveAuthenticationManager {
 | ||
|         val accessTokenResponseClient = WebClientReactiveAuthorizationCodeTokenResponseClient()
 | ||
|         // ...
 | ||
| 
 | ||
|         return OAuth2AuthorizationCodeReactiveAuthenticationManager(accessTokenResponseClient)
 | ||
|     }
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [[oauth2-client-refresh-token]]
 | ||
| == [[oauth2Client-refresh-token-grant]]Refresh Token
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the OAuth 2.0 Authorization Framework for further details on the https://tools.ietf.org/html/rfc6749#section-1.5[Refresh Token].
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-refresh-token-access-token]]
 | ||
| === Refreshing an Access Token
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the https://tools.ietf.org/html/rfc6749#section-6[Access Token Request/Response] protocol flow for the Refresh Token grant.
 | ||
| ====
 | ||
| 
 | ||
| The default implementation of `ReactiveOAuth2AccessTokenResponseClient` for the Refresh Token grant is `WebClientReactiveRefreshTokenTokenResponseClient`, which uses a `WebClient` when refreshing an access token at the Authorization Server’s Token Endpoint.
 | ||
| 
 | ||
| :section-id: refresh-token
 | ||
| :grant-type: Refresh Token
 | ||
| :class-name: WebClientReactiveRefreshTokenTokenResponseClient
 | ||
| :grant-request: OAuth2RefreshTokenGrantRequest
 | ||
| :leveloffset: +1
 | ||
| include::partial$reactive/oauth2/client/web-client-access-token-response-client.adoc[]
 | ||
| 
 | ||
| :leveloffset: -1
 | ||
| 
 | ||
| [[oauth2-client-refresh-token-authorized-client-provider-builder]]
 | ||
| === Customize using the Builder
 | ||
| 
 | ||
| Whether you customize `WebClientReactiveRefreshTokenTokenResponseClient` or provide your own implementation of `ReactiveOAuth2AccessTokenResponseClient`, you can configure it using the `ReactiveOAuth2AuthorizedClientProviderBuilder` (as an alternative to <<oauth2-client-refresh-token-access-token-response-client-bean,publishing a bean>>) as follows:
 | ||
| 
 | ||
| .Access Token Response Configuration via Builder
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| // Customize
 | ||
| ReactiveOAuth2AccessTokenResponseClient<OAuth2RefreshTokenGrantRequest> refreshTokenTokenResponseClient = ...
 | ||
| 
 | ||
| ReactiveOAuth2AuthorizedClientProvider authorizedClientProvider =
 | ||
| 		ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
| 				.authorizationCode()
 | ||
| 				.refreshToken(configurer -> configurer.accessTokenResponseClient(refreshTokenTokenResponseClient))
 | ||
| 				.build();
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| // Customize
 | ||
| val refreshTokenTokenResponseClient: ReactiveOAuth2AccessTokenResponseClient<OAuth2RefreshTokenGrantRequest> = ...
 | ||
| 
 | ||
| val authorizedClientProvider: ReactiveOAuth2AuthorizedClientProvider = ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
|         .authorizationCode()
 | ||
|         .refreshToken { it.accessTokenResponseClient(refreshTokenTokenResponseClient) }
 | ||
|         .build()
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider)
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| `ReactiveOAuth2AuthorizedClientProviderBuilder.builder().refreshToken()` configures a `RefreshTokenReactiveOAuth2AuthorizedClientProvider`,
 | ||
| which is an implementation of a `ReactiveOAuth2AuthorizedClientProvider` for the Refresh Token grant.
 | ||
| ====
 | ||
| 
 | ||
| The `OAuth2RefreshToken` may optionally be returned in the Access Token Response for the `authorization_code` and `password` grant types.
 | ||
| If the `OAuth2AuthorizedClient.getRefreshToken()` is available and the `OAuth2AuthorizedClient.getAccessToken()` is expired, it will automatically be refreshed by the `RefreshTokenReactiveOAuth2AuthorizedClientProvider`.
 | ||
| 
 | ||
| [[oauth2-client-client-credentials]]
 | ||
| == [[oauth2Client-client-creds-grant]]Client Credentials
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the OAuth 2.0 Authorization Framework for further details on the https://tools.ietf.org/html/rfc6749#section-1.3.4[Client Credentials] grant.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-client-credentials-access-token]]
 | ||
| === Requesting an Access Token
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the https://tools.ietf.org/html/rfc6749#section-4.4.2[Access Token Request/Response] protocol flow for the Client Credentials grant.
 | ||
| ====
 | ||
| 
 | ||
| The default implementation of `ReactiveOAuth2AccessTokenResponseClient` for the Client Credentials grant is `WebClientReactiveClientCredentialsTokenResponseClient`, which uses a `WebClient` when requesting an access token at the Authorization Server’s Token Endpoint.
 | ||
| 
 | ||
| :section-id: client-credentials
 | ||
| :grant-type: Client Credentials
 | ||
| :class-name: WebClientReactiveClientCredentialsTokenResponseClient
 | ||
| :grant-request: OAuth2ClientCredentialsGrantRequest
 | ||
| :leveloffset: +1
 | ||
| include::partial$reactive/oauth2/client/web-client-access-token-response-client.adoc[]
 | ||
| 
 | ||
| :leveloffset: -1
 | ||
| 
 | ||
| [[oauth2-client-client-credentials-authorized-client-provider-builder]]
 | ||
| === Customize using the Builder
 | ||
| 
 | ||
| Whether you customize `WebClientReactiveClientCredentialsTokenResponseClient` or provide your own implementation of `ReactiveOAuth2AccessTokenResponseClient`, you can configure it using the `ReactiveOAuth2AuthorizedClientProviderBuilder` (as an alternative to <<oauth2-client-client-credentials-access-token-response-client-bean,publishing a bean>>) as follows:
 | ||
| 
 | ||
| .Access Token Response Configuration via Builder
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| // Customize
 | ||
| ReactiveOAuth2AccessTokenResponseClient<OAuth2ClientCredentialsGrantRequest> clientCredentialsTokenResponseClient = ...
 | ||
| 
 | ||
| ReactiveOAuth2AuthorizedClientProvider authorizedClientProvider =
 | ||
| 		ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
| 				.clientCredentials(configurer -> configurer.accessTokenResponseClient(clientCredentialsTokenResponseClient))
 | ||
| 				.build();
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| // Customize
 | ||
| val clientCredentialsTokenResponseClient: ReactiveOAuth2AccessTokenResponseClient<OAuth2ClientCredentialsGrantRequest> = ...
 | ||
| 
 | ||
| val authorizedClientProvider: ReactiveOAuth2AuthorizedClientProvider = ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
|         .clientCredentials { it.accessTokenResponseClient(clientCredentialsTokenResponseClient) }
 | ||
|         .build()
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider)
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| `ReactiveOAuth2AuthorizedClientProviderBuilder.builder().clientCredentials()` configures a `ClientCredentialsReactiveOAuth2AuthorizedClientProvider`, which is an implementation of a `ReactiveOAuth2AuthorizedClientProvider` for the Client Credentials grant.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-client-credentials-authorized-client-manager]]
 | ||
| === Using the Access Token
 | ||
| 
 | ||
| Given the following Spring Boot properties for an OAuth 2.0 Client registration:
 | ||
| 
 | ||
| [source,yaml]
 | ||
| ----
 | ||
| spring:
 | ||
|   security:
 | ||
|     oauth2:
 | ||
|       client:
 | ||
|         registration:
 | ||
|           okta:
 | ||
|             client-id: okta-client-id
 | ||
|             client-secret: okta-client-secret
 | ||
|             authorization-grant-type: client_credentials
 | ||
|             scope: read, write
 | ||
|         provider:
 | ||
|           okta:
 | ||
|             token-uri: https://dev-1234.oktapreview.com/oauth2/v1/token
 | ||
| ----
 | ||
| 
 | ||
| ...and the `ReactiveOAuth2AuthorizedClientManager` `@Bean`:
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @Bean
 | ||
| public ReactiveOAuth2AuthorizedClientManager authorizedClientManager(
 | ||
| 		ReactiveClientRegistrationRepository clientRegistrationRepository,
 | ||
| 		ServerOAuth2AuthorizedClientRepository authorizedClientRepository) {
 | ||
| 
 | ||
| 	ReactiveOAuth2AuthorizedClientProvider authorizedClientProvider =
 | ||
| 			ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
| 					.clientCredentials()
 | ||
| 					.build();
 | ||
| 
 | ||
| 	DefaultReactiveOAuth2AuthorizedClientManager authorizedClientManager =
 | ||
| 			new DefaultReactiveOAuth2AuthorizedClientManager(
 | ||
| 					clientRegistrationRepository, authorizedClientRepository);
 | ||
| 	authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);
 | ||
| 
 | ||
| 	return authorizedClientManager;
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| @Bean
 | ||
| fun authorizedClientManager(
 | ||
|         clientRegistrationRepository: ReactiveClientRegistrationRepository,
 | ||
|         authorizedClientRepository: ServerOAuth2AuthorizedClientRepository): ReactiveOAuth2AuthorizedClientManager {
 | ||
|     val authorizedClientProvider: ReactiveOAuth2AuthorizedClientProvider = ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
|             .clientCredentials()
 | ||
|             .build()
 | ||
|     val authorizedClientManager = DefaultReactiveOAuth2AuthorizedClientManager(
 | ||
|             clientRegistrationRepository, authorizedClientRepository)
 | ||
|     authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider)
 | ||
|     return authorizedClientManager
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| You may obtain the `OAuth2AccessToken` as follows:
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @Controller
 | ||
| public class OAuth2ClientController {
 | ||
| 
 | ||
| 	@Autowired
 | ||
| 	private ReactiveOAuth2AuthorizedClientManager authorizedClientManager;
 | ||
| 
 | ||
| 	@GetMapping("/")
 | ||
| 	public Mono<String> index(Authentication authentication, ServerWebExchange exchange) {
 | ||
| 		OAuth2AuthorizeRequest authorizeRequest = OAuth2AuthorizeRequest.withClientRegistrationId("okta")
 | ||
| 				.principal(authentication)
 | ||
| 				.attribute(ServerWebExchange.class.getName(), exchange)
 | ||
| 				.build();
 | ||
| 
 | ||
| 		return this.authorizedClientManager.authorize(authorizeRequest)
 | ||
| 				.map(OAuth2AuthorizedClient::getAccessToken)
 | ||
| 				// ...
 | ||
| 				.thenReturn("index");
 | ||
| 	}
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| class OAuth2ClientController {
 | ||
| 
 | ||
|     @Autowired
 | ||
|     private lateinit var authorizedClientManager: ReactiveOAuth2AuthorizedClientManager
 | ||
| 
 | ||
|     @GetMapping("/")
 | ||
|     fun index(authentication: Authentication, exchange: ServerWebExchange): Mono<String> {
 | ||
|         val authorizeRequest = OAuth2AuthorizeRequest.withClientRegistrationId("okta")
 | ||
|                 .principal(authentication)
 | ||
|                 .attribute(ServerWebExchange::class.java.name, exchange)
 | ||
|                 .build()
 | ||
| 
 | ||
|         return authorizedClientManager.authorize(authorizeRequest)
 | ||
|                 .map { it.accessToken }
 | ||
|                 // ...
 | ||
|                 .thenReturn("index")
 | ||
|     }
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| `ServerWebExchange` is an OPTIONAL attribute.
 | ||
| If not provided, it will be obtained from the https://projectreactor.io/docs/core/release/reference/#context[Reactor's Context] via the key `ServerWebExchange.class`.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-password]]
 | ||
| == [[oauth2Client-password-grant]]Resource Owner Password Credentials
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the OAuth 2.0 Authorization Framework for further details on the https://tools.ietf.org/html/rfc6749#section-1.3.3[Resource Owner Password Credentials] grant.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-password-access-token]]
 | ||
| === Requesting an Access Token
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the https://tools.ietf.org/html/rfc6749#section-4.3.2[Access Token Request/Response] protocol flow for the Resource Owner Password Credentials grant.
 | ||
| ====
 | ||
| 
 | ||
| The default implementation of `ReactiveOAuth2AccessTokenResponseClient` for the Resource Owner Password Credentials grant is `WebClientReactivePasswordTokenResponseClient`, which uses a `WebClient` when requesting an access token at the Authorization Server’s Token Endpoint.
 | ||
| 
 | ||
| [CAUTION]
 | ||
| ====
 | ||
| The `WebClientReactivePasswordTokenResponseClient` class and support for the Resource Owner Password Credentials grant are deprecated.
 | ||
| This section will be removed in Spring Security 7.
 | ||
| ====
 | ||
| 
 | ||
| :section-id: password
 | ||
| :grant-type: Password
 | ||
| :class-name: WebClientReactivePasswordTokenResponseClient
 | ||
| :grant-request: OAuth2PasswordGrantRequest
 | ||
| :leveloffset: +1
 | ||
| include::partial$reactive/oauth2/client/web-client-access-token-response-client.adoc[]
 | ||
| 
 | ||
| :leveloffset: -1
 | ||
| 
 | ||
| [[oauth2-client-password-authorized-client-provider-builder]]
 | ||
| === Customize using the Builder
 | ||
| 
 | ||
| Whether you customize `WebClientReactivePasswordTokenResponseClient` or provide your own implementation of `ReactiveOAuth2AccessTokenResponseClient`, you can configure it using the `ReactiveOAuth2AuthorizedClientProviderBuilder` (as an alternative to <<oauth2-client-password-access-token-response-client-bean,publishing a bean>>) as follows:
 | ||
| 
 | ||
| .Access Token Response Configuration via Builder
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| // Customize
 | ||
| ReactiveOAuth2AccessTokenResponseClient<OAuth2PasswordGrantRequest> passwordTokenResponseClient = ...
 | ||
| 
 | ||
| ReactiveOAuth2AuthorizedClientProvider authorizedClientProvider =
 | ||
| 		ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
| 				.password(configurer -> configurer.accessTokenResponseClient(passwordTokenResponseClient))
 | ||
| 				.refreshToken()
 | ||
| 				.build();
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| val passwordTokenResponseClient: ReactiveOAuth2AccessTokenResponseClient<OAuth2PasswordGrantRequest> = ...
 | ||
| 
 | ||
| val authorizedClientProvider = ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
|         .password { it.accessTokenResponseClient(passwordTokenResponseClient) }
 | ||
|         .refreshToken()
 | ||
|         .build()
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider)
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| `ReactiveOAuth2AuthorizedClientProviderBuilder.builder().password()` configures a `PasswordReactiveOAuth2AuthorizedClientProvider`,
 | ||
| which is an implementation of a `ReactiveOAuth2AuthorizedClientProvider` for the Resource Owner Password Credentials grant.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-password-authorized-client-manager]]
 | ||
| === Using the Access Token
 | ||
| 
 | ||
| Given the following Spring Boot properties for an OAuth 2.0 Client registration:
 | ||
| 
 | ||
| [source,yaml]
 | ||
| ----
 | ||
| spring:
 | ||
|   security:
 | ||
|     oauth2:
 | ||
|       client:
 | ||
|         registration:
 | ||
|           okta:
 | ||
|             client-id: okta-client-id
 | ||
|             client-secret: okta-client-secret
 | ||
|             authorization-grant-type: password
 | ||
|             scope: read, write
 | ||
|         provider:
 | ||
|           okta:
 | ||
|             token-uri: https://dev-1234.oktapreview.com/oauth2/v1/token
 | ||
| ----
 | ||
| 
 | ||
| ...and the `ReactiveOAuth2AuthorizedClientManager` `@Bean`:
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @Bean
 | ||
| public ReactiveOAuth2AuthorizedClientManager authorizedClientManager(
 | ||
| 		ReactiveClientRegistrationRepository clientRegistrationRepository,
 | ||
| 		ServerOAuth2AuthorizedClientRepository authorizedClientRepository) {
 | ||
| 
 | ||
| 	ReactiveOAuth2AuthorizedClientProvider authorizedClientProvider =
 | ||
| 			ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
| 					.password()
 | ||
| 					.refreshToken()
 | ||
| 					.build();
 | ||
| 
 | ||
| 	DefaultReactiveOAuth2AuthorizedClientManager authorizedClientManager =
 | ||
| 			new DefaultReactiveOAuth2AuthorizedClientManager(
 | ||
| 					clientRegistrationRepository, authorizedClientRepository);
 | ||
| 	authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);
 | ||
| 
 | ||
| 	// Assuming the `username` and `password` are supplied as `ServerHttpRequest` parameters,
 | ||
| 	// map the `ServerHttpRequest` parameters to `OAuth2AuthorizationContext.getAttributes()`
 | ||
| 	authorizedClientManager.setContextAttributesMapper(contextAttributesMapper());
 | ||
| 
 | ||
| 	return authorizedClientManager;
 | ||
| }
 | ||
| 
 | ||
| private Function<OAuth2AuthorizeRequest, Mono<Map<String, Object>>> contextAttributesMapper() {
 | ||
| 	return authorizeRequest -> {
 | ||
| 		Map<String, Object> contextAttributes = Collections.emptyMap();
 | ||
| 		ServerWebExchange exchange = authorizeRequest.getAttribute(ServerWebExchange.class.getName());
 | ||
| 		ServerHttpRequest request = exchange.getRequest();
 | ||
| 		String username = request.getQueryParams().getFirst(OAuth2ParameterNames.USERNAME);
 | ||
| 		String password = request.getQueryParams().getFirst(OAuth2ParameterNames.PASSWORD);
 | ||
| 		if (StringUtils.hasText(username) && StringUtils.hasText(password)) {
 | ||
| 			contextAttributes = new HashMap<>();
 | ||
| 
 | ||
| 			// `PasswordReactiveOAuth2AuthorizedClientProvider` requires both attributes
 | ||
| 			contextAttributes.put(OAuth2AuthorizationContext.USERNAME_ATTRIBUTE_NAME, username);
 | ||
| 			contextAttributes.put(OAuth2AuthorizationContext.PASSWORD_ATTRIBUTE_NAME, password);
 | ||
| 		}
 | ||
| 		return Mono.just(contextAttributes);
 | ||
| 	};
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| @Bean
 | ||
| fun authorizedClientManager(
 | ||
|         clientRegistrationRepository: ReactiveClientRegistrationRepository,
 | ||
|         authorizedClientRepository: ServerOAuth2AuthorizedClientRepository): ReactiveOAuth2AuthorizedClientManager {
 | ||
|     val authorizedClientProvider: ReactiveOAuth2AuthorizedClientProvider = ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
|             .password()
 | ||
|             .refreshToken()
 | ||
|             .build()
 | ||
|     val authorizedClientManager = DefaultReactiveOAuth2AuthorizedClientManager(
 | ||
|             clientRegistrationRepository, authorizedClientRepository)
 | ||
|     authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider)
 | ||
| 
 | ||
|     // Assuming the `username` and `password` are supplied as `ServerHttpRequest` parameters,
 | ||
|     // map the `ServerHttpRequest` parameters to `OAuth2AuthorizationContext.getAttributes()`
 | ||
|     authorizedClientManager.setContextAttributesMapper(contextAttributesMapper())
 | ||
|     return authorizedClientManager
 | ||
| }
 | ||
| 
 | ||
| private fun contextAttributesMapper(): Function<OAuth2AuthorizeRequest, Mono<MutableMap<String, Any>>> {
 | ||
|     return Function { authorizeRequest ->
 | ||
|         var contextAttributes: MutableMap<String, Any> = mutableMapOf()
 | ||
|         val exchange: ServerWebExchange = authorizeRequest.getAttribute(ServerWebExchange::class.java.name)!!
 | ||
|         val request: ServerHttpRequest = exchange.request
 | ||
|         val username: String? = request.queryParams.getFirst(OAuth2ParameterNames.USERNAME)
 | ||
|         val password: String? = request.queryParams.getFirst(OAuth2ParameterNames.PASSWORD)
 | ||
|         if (StringUtils.hasText(username) && StringUtils.hasText(password)) {
 | ||
|             contextAttributes = hashMapOf()
 | ||
| 
 | ||
|             // `PasswordReactiveOAuth2AuthorizedClientProvider` requires both attributes
 | ||
|             contextAttributes[OAuth2AuthorizationContext.USERNAME_ATTRIBUTE_NAME] = username!!
 | ||
|             contextAttributes[OAuth2AuthorizationContext.PASSWORD_ATTRIBUTE_NAME] = password!!
 | ||
|         }
 | ||
|         Mono.just(contextAttributes)
 | ||
|     }
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| You may obtain the `OAuth2AccessToken` as follows:
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @Controller
 | ||
| public class OAuth2ClientController {
 | ||
| 
 | ||
| 	@Autowired
 | ||
| 	private ReactiveOAuth2AuthorizedClientManager authorizedClientManager;
 | ||
| 
 | ||
| 	@GetMapping("/")
 | ||
| 	public Mono<String> index(Authentication authentication, ServerWebExchange exchange) {
 | ||
| 		OAuth2AuthorizeRequest authorizeRequest = OAuth2AuthorizeRequest.withClientRegistrationId("okta")
 | ||
| 				.principal(authentication)
 | ||
| 				.attribute(ServerWebExchange.class.getName(), exchange)
 | ||
| 				.build();
 | ||
| 
 | ||
| 		return this.authorizedClientManager.authorize(authorizeRequest)
 | ||
| 				.map(OAuth2AuthorizedClient::getAccessToken)
 | ||
| 				// ...
 | ||
| 				.thenReturn("index");
 | ||
| 	}
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| @Controller
 | ||
| class OAuth2ClientController {
 | ||
|     @Autowired
 | ||
|     private lateinit var authorizedClientManager: ReactiveOAuth2AuthorizedClientManager
 | ||
| 
 | ||
|     @GetMapping("/")
 | ||
|     fun index(authentication: Authentication, exchange: ServerWebExchange): Mono<String> {
 | ||
|         val authorizeRequest = OAuth2AuthorizeRequest.withClientRegistrationId("okta")
 | ||
|                 .principal(authentication)
 | ||
|                 .attribute(ServerWebExchange::class.java.name, exchange)
 | ||
|                 .build()
 | ||
| 
 | ||
|         return authorizedClientManager.authorize(authorizeRequest)
 | ||
|                 .map { it.accessToken }
 | ||
|                 // ...
 | ||
|                 .thenReturn("index")
 | ||
|     }
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| `ServerWebExchange` is an OPTIONAL attribute.
 | ||
| If not provided, it will be obtained from the https://projectreactor.io/docs/core/release/reference/#context[Reactor's Context] via the key `ServerWebExchange.class`.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-jwt-bearer]]
 | ||
| == [[oauth2Client-jwt-bearer-grant]]JWT Bearer
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to JSON Web Token (JWT) Profile for OAuth 2.0 Client Authentication and Authorization Grants for further details on the https://datatracker.ietf.org/doc/html/rfc7523[JWT Bearer] grant.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-jwt-bearer-access-token]]
 | ||
| === Requesting an Access Token
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the https://datatracker.ietf.org/doc/html/rfc7523#section-2.1[Access Token Request/Response] protocol flow for the JWT Bearer grant.
 | ||
| ====
 | ||
| 
 | ||
| The default implementation of `ReactiveOAuth2AccessTokenResponseClient` for the JWT Bearer grant is `WebClientReactiveJwtBearerTokenResponseClient`, which uses a `WebClient` when requesting an access token at the Authorization Server’s Token Endpoint.
 | ||
| 
 | ||
| :section-id: jwt-bearer
 | ||
| :grant-type: JWT Bearer
 | ||
| :class-name: WebClientReactiveJwtBearerTokenResponseClient
 | ||
| :grant-request: JwtBearerGrantRequest
 | ||
| :leveloffset: +1
 | ||
| include::partial$reactive/oauth2/client/web-client-access-token-response-client.adoc[]
 | ||
| 
 | ||
| :leveloffset: -1
 | ||
| 
 | ||
| [[oauth2-client-jwt-bearer-authorized-client-provider-builder]]
 | ||
| === Customize using the Builder
 | ||
| 
 | ||
| Whether you customize `WebClientReactiveJwtBearerTokenResponseClient` or provide your own implementation of `ReactiveOAuth2AccessTokenResponseClient`, you can configure it using the `ReactiveOAuth2AuthorizedClientProviderBuilder` (as an alternative to <<oauth2-client-jwt-bearer-access-token-response-client-bean,publishing a bean>>) as follows:
 | ||
| 
 | ||
| .Access Token Response Configuration via Builder
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| // Customize
 | ||
| ReactiveOAuth2AccessTokenResponseClient<JwtBearerGrantRequest> jwtBearerTokenResponseClient = ...
 | ||
| 
 | ||
| JwtBearerReactiveOAuth2AuthorizedClientProvider jwtBearerAuthorizedClientProvider = new JwtBearerReactiveOAuth2AuthorizedClientProvider();
 | ||
| jwtBearerAuthorizedClientProvider.setAccessTokenResponseClient(jwtBearerTokenResponseClient);
 | ||
| 
 | ||
| ReactiveOAuth2AuthorizedClientProvider authorizedClientProvider =
 | ||
| 		ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
| 				.provider(jwtBearerAuthorizedClientProvider)
 | ||
| 				.build();
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| // Customize
 | ||
| val jwtBearerTokenResponseClient: ReactiveOAuth2AccessTokenResponseClient<JwtBearerGrantRequest> = ...
 | ||
| 
 | ||
| val jwtBearerAuthorizedClientProvider = JwtBearerReactiveOAuth2AuthorizedClientProvider()
 | ||
| jwtBearerAuthorizedClientProvider.setAccessTokenResponseClient(jwtBearerTokenResponseClient)
 | ||
| 
 | ||
| val authorizedClientProvider = ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
|         .provider(jwtBearerAuthorizedClientProvider)
 | ||
|         .build()
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider)
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [[oauth2-client-jwt-bearer-authorized-client-manager]]
 | ||
| === Using the Access Token
 | ||
| 
 | ||
| Given the following Spring Boot properties for an OAuth 2.0 Client registration:
 | ||
| 
 | ||
| [source,yaml]
 | ||
| ----
 | ||
| spring:
 | ||
|   security:
 | ||
|     oauth2:
 | ||
|       client:
 | ||
|         registration:
 | ||
|           okta:
 | ||
|             client-id: okta-client-id
 | ||
|             client-secret: okta-client-secret
 | ||
|             authorization-grant-type: urn:ietf:params:oauth:grant-type:jwt-bearer
 | ||
|             scope: read
 | ||
|         provider:
 | ||
|           okta:
 | ||
|             token-uri: https://dev-1234.oktapreview.com/oauth2/v1/token
 | ||
| ----
 | ||
| 
 | ||
| ...and the `OAuth2AuthorizedClientManager` `@Bean`:
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @Bean
 | ||
| public ReactiveOAuth2AuthorizedClientManager authorizedClientManager(
 | ||
| 		ReactiveClientRegistrationRepository clientRegistrationRepository,
 | ||
| 		ServerOAuth2AuthorizedClientRepository authorizedClientRepository) {
 | ||
| 
 | ||
| 	JwtBearerReactiveOAuth2AuthorizedClientProvider jwtBearerAuthorizedClientProvider =
 | ||
| 			new JwtBearerReactiveOAuth2AuthorizedClientProvider();
 | ||
| 
 | ||
| 	ReactiveOAuth2AuthorizedClientProvider authorizedClientProvider =
 | ||
| 			ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
| 					.provider(jwtBearerAuthorizedClientProvider)
 | ||
| 					.build();
 | ||
| 
 | ||
| 	DefaultReactiveOAuth2AuthorizedClientManager authorizedClientManager =
 | ||
| 			new DefaultReactiveOAuth2AuthorizedClientManager(
 | ||
| 					clientRegistrationRepository, authorizedClientRepository);
 | ||
| 	authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);
 | ||
| 
 | ||
| 	return authorizedClientManager;
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| @Bean
 | ||
| fun authorizedClientManager(
 | ||
|         clientRegistrationRepository: ReactiveClientRegistrationRepository,
 | ||
|         authorizedClientRepository: ServerOAuth2AuthorizedClientRepository): ReactiveOAuth2AuthorizedClientManager {
 | ||
|     val jwtBearerAuthorizedClientProvider = JwtBearerReactiveOAuth2AuthorizedClientProvider()
 | ||
|     val authorizedClientProvider = ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
|             .provider(jwtBearerAuthorizedClientProvider)
 | ||
|             .build()
 | ||
|     val authorizedClientManager = DefaultReactiveOAuth2AuthorizedClientManager(
 | ||
|             clientRegistrationRepository, authorizedClientRepository)
 | ||
|     authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider)
 | ||
|     return authorizedClientManager
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| You may obtain the `OAuth2AccessToken` as follows:
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @RestController
 | ||
| public class OAuth2ResourceServerController {
 | ||
| 
 | ||
| 	@Autowired
 | ||
| 	private ReactiveOAuth2AuthorizedClientManager authorizedClientManager;
 | ||
| 
 | ||
| 	@GetMapping("/resource")
 | ||
| 	public Mono<String> resource(JwtAuthenticationToken jwtAuthentication, ServerWebExchange exchange) {
 | ||
| 		OAuth2AuthorizeRequest authorizeRequest = OAuth2AuthorizeRequest.withClientRegistrationId("okta")
 | ||
| 				.principal(jwtAuthentication)
 | ||
| 				.build();
 | ||
| 
 | ||
| 		return this.authorizedClientManager.authorize(authorizeRequest)
 | ||
| 				.map(OAuth2AuthorizedClient::getAccessToken)
 | ||
| 				// ...
 | ||
| 				.thenReturn("index");
 | ||
| 	}
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| class OAuth2ResourceServerController {
 | ||
| 
 | ||
|     @Autowired
 | ||
|     private lateinit var authorizedClientManager: ReactiveOAuth2AuthorizedClientManager
 | ||
| 
 | ||
|     @GetMapping("/resource")
 | ||
|     fun resource(jwtAuthentication: JwtAuthenticationToken, exchange: ServerWebExchange): Mono<String> {
 | ||
|         val authorizeRequest = OAuth2AuthorizeRequest.withClientRegistrationId("okta")
 | ||
|                 .principal(jwtAuthentication)
 | ||
|                 .build()
 | ||
|         return authorizedClientManager.authorize(authorizeRequest)
 | ||
|                 .map { it.accessToken }
 | ||
|                 // ...
 | ||
|                 .thenReturn("index")
 | ||
|     }
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| `JwtBearerReactiveOAuth2AuthorizedClientProvider` resolves the `Jwt` assertion via `OAuth2AuthorizationContext.getPrincipal().getPrincipal()` by default, hence the use of `JwtAuthenticationToken` in the preceding example.
 | ||
| ====
 | ||
| 
 | ||
| [TIP]
 | ||
| ====
 | ||
| If you need to resolve the `Jwt` assertion from a different source, you can provide `JwtBearerReactiveOAuth2AuthorizedClientProvider.setJwtAssertionResolver()` with a custom `Function<OAuth2AuthorizationContext, Mono<Jwt>>`.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-token-exchange]]
 | ||
| == [[oauth2Client-token-exchange-grant]]Token Exchange
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to OAuth 2.0 Token Exchange for further details on the https://datatracker.ietf.org/doc/html/rfc8693[Token Exchange] grant.
 | ||
| ====
 | ||
| 
 | ||
| [[oauth2-client-token-exchange-access-token]]
 | ||
| === Requesting an Access Token
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| Please refer to the https://datatracker.ietf.org/doc/html/rfc8693#section-2[Token Exchange Request and Response] protocol flow for the Token Exchange grant.
 | ||
| ====
 | ||
| 
 | ||
| The default implementation of `ReactiveOAuth2AccessTokenResponseClient` for the Token Exchange grant is `WebClientReactiveTokenExchangeTokenResponseClient`, which uses a `WebClient` when requesting an access token at the Authorization Server’s Token Endpoint.
 | ||
| 
 | ||
| :section-id: token-exchange
 | ||
| :grant-type: Token Exchange
 | ||
| :class-name: WebClientReactiveTokenExchangeTokenResponseClient
 | ||
| :grant-request: TokenExchangeGrantRequest
 | ||
| :leveloffset: +1
 | ||
| include::partial$reactive/oauth2/client/web-client-access-token-response-client.adoc[]
 | ||
| 
 | ||
| :leveloffset: -1
 | ||
| 
 | ||
| [[oauth2-client-token-exchange-authorized-client-provider-builder]]
 | ||
| === Customize using the Builder
 | ||
| 
 | ||
| Whether you customize `WebClientReactiveTokenExchangeTokenResponseClient` or provide your own implementation of `ReactiveOAuth2AccessTokenResponseClient`, you can configure it using the `ReactiveOAuth2AuthorizedClientProviderBuilder` (as an alternative to <<oauth2-client-token-exchange-access-token-response-client-bean,publishing a bean>>) as follows:
 | ||
| 
 | ||
| .Access Token Response Configuration via Builder
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| // Customize
 | ||
| ReactiveOAuth2AccessTokenResponseClient<TokenExchangeGrantRequest> tokenExchangeTokenResponseClient = ...
 | ||
| 
 | ||
| TokenExchangeReactiveOAuth2AuthorizedClientProvider tokenExchangeAuthorizedClientProvider = new TokenExchangeReactiveOAuth2AuthorizedClientProvider();
 | ||
| tokenExchangeAuthorizedClientProvider.setAccessTokenResponseClient(tokenExchangeTokenResponseClient);
 | ||
| 
 | ||
| ReactiveOAuth2AuthorizedClientProvider authorizedClientProvider =
 | ||
| 		ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
| 				.provider(tokenExchangeAuthorizedClientProvider)
 | ||
| 				.build();
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| // Customize
 | ||
| val tokenExchangeTokenResponseClient: ReactiveOAuth2AccessTokenResponseClient<TokenExchangeGrantRequest> = ...
 | ||
| 
 | ||
| val tokenExchangeAuthorizedClientProvider = TokenExchangeReactiveOAuth2AuthorizedClientProvider()
 | ||
| tokenExchangeAuthorizedClientProvider.setAccessTokenResponseClient(tokenExchangeTokenResponseClient)
 | ||
| 
 | ||
| val authorizedClientProvider = ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
|         .provider(tokenExchangeAuthorizedClientProvider)
 | ||
|         .build()
 | ||
| 
 | ||
| // ...
 | ||
| 
 | ||
| authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider)
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [[oauth2-client-token-exchange-authorized-client-manager]]
 | ||
| === Using the Access Token
 | ||
| 
 | ||
| Given the following Spring Boot properties for an OAuth 2.0 Client registration:
 | ||
| 
 | ||
| [source,yaml]
 | ||
| ----
 | ||
| spring:
 | ||
|   security:
 | ||
|     oauth2:
 | ||
|       client:
 | ||
|         registration:
 | ||
|           okta:
 | ||
|             client-id: okta-client-id
 | ||
|             client-secret: okta-client-secret
 | ||
|             authorization-grant-type: urn:ietf:params:oauth:grant-type:token-exchange
 | ||
|             scope: read
 | ||
|         provider:
 | ||
|           okta:
 | ||
|             token-uri: https://dev-1234.oktapreview.com/oauth2/v1/token
 | ||
| ----
 | ||
| 
 | ||
| ...and the `OAuth2AuthorizedClientManager` `@Bean`:
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @Bean
 | ||
| public ReactiveOAuth2AuthorizedClientManager authorizedClientManager(
 | ||
| 		ReactiveClientRegistrationRepository clientRegistrationRepository,
 | ||
| 		ServerOAuth2AuthorizedClientRepository authorizedClientRepository) {
 | ||
| 
 | ||
| 	TokenExchangeReactiveOAuth2AuthorizedClientProvider tokenExchangeAuthorizedClientProvider =
 | ||
| 			new TokenExchangeReactiveOAuth2AuthorizedClientProvider();
 | ||
| 
 | ||
| 	ReactiveOAuth2AuthorizedClientProvider authorizedClientProvider =
 | ||
| 			ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
| 					.provider(tokenExchangeAuthorizedClientProvider)
 | ||
| 					.build();
 | ||
| 
 | ||
| 	DefaultReactiveOAuth2AuthorizedClientManager authorizedClientManager =
 | ||
| 			new DefaultReactiveOAuth2AuthorizedClientManager(
 | ||
| 					clientRegistrationRepository, authorizedClientRepository);
 | ||
| 	authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);
 | ||
| 
 | ||
| 	return authorizedClientManager;
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| @Bean
 | ||
| fun authorizedClientManager(
 | ||
|         clientRegistrationRepository: ReactiveClientRegistrationRepository,
 | ||
|         authorizedClientRepository: ServerOAuth2AuthorizedClientRepository): ReactiveOAuth2AuthorizedClientManager {
 | ||
|     val tokenExchangeAuthorizedClientProvider = TokenExchangeReactiveOAuth2AuthorizedClientProvider()
 | ||
|     val authorizedClientProvider = ReactiveOAuth2AuthorizedClientProviderBuilder.builder()
 | ||
|             .provider(tokenExchangeAuthorizedClientProvider)
 | ||
|             .build()
 | ||
|     val authorizedClientManager = DefaultReactiveOAuth2AuthorizedClientManager(
 | ||
|             clientRegistrationRepository, authorizedClientRepository)
 | ||
|     authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider)
 | ||
|     return authorizedClientManager
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| You may obtain the `OAuth2AccessToken` as follows:
 | ||
| 
 | ||
| [tabs]
 | ||
| ======
 | ||
| Java::
 | ||
| +
 | ||
| [source,java,role="primary"]
 | ||
| ----
 | ||
| @RestController
 | ||
| public class OAuth2ResourceServerController {
 | ||
| 
 | ||
| 	@Autowired
 | ||
| 	private ReactiveOAuth2AuthorizedClientManager authorizedClientManager;
 | ||
| 
 | ||
| 	@GetMapping("/resource")
 | ||
| 	public Mono<String> resource(JwtAuthenticationToken jwtAuthentication) {
 | ||
| 		OAuth2AuthorizeRequest authorizeRequest = OAuth2AuthorizeRequest.withClientRegistrationId("okta")
 | ||
| 				.principal(jwtAuthentication)
 | ||
| 				.build();
 | ||
| 
 | ||
| 		return this.authorizedClientManager.authorize(authorizeRequest)
 | ||
| 				.map(OAuth2AuthorizedClient::getAccessToken)
 | ||
| 				// ...
 | ||
| 				.thenReturn("index");
 | ||
| 	}
 | ||
| }
 | ||
| ----
 | ||
| 
 | ||
| Kotlin::
 | ||
| +
 | ||
| [source,kotlin,role="secondary"]
 | ||
| ----
 | ||
| class OAuth2ResourceServerController {
 | ||
| 
 | ||
|     @Autowired
 | ||
|     private lateinit var authorizedClientManager: ReactiveOAuth2AuthorizedClientManager
 | ||
| 
 | ||
|     @GetMapping("/resource")
 | ||
|     fun resource(jwtAuthentication: JwtAuthenticationToken): Mono<String> {
 | ||
|         val authorizeRequest = OAuth2AuthorizeRequest.withClientRegistrationId("okta")
 | ||
|                 .principal(jwtAuthentication)
 | ||
|                 .build()
 | ||
|         return authorizedClientManager.authorize(authorizeRequest)
 | ||
|                 .map { it.accessToken }
 | ||
|                 // ...
 | ||
|                 .thenReturn("index")
 | ||
|     }
 | ||
| }
 | ||
| ----
 | ||
| ======
 | ||
| 
 | ||
| [NOTE]
 | ||
| ====
 | ||
| `TokenExchangeReactiveOAuth2AuthorizedClientProvider` resolves the subject token (as an `OAuth2Token`) via `OAuth2AuthorizationContext.getPrincipal().getPrincipal()` by default, hence the use of `JwtAuthenticationToken` in the preceding example.
 | ||
| An actor token is not resolved by default.
 | ||
| ====
 | ||
| 
 | ||
| [TIP]
 | ||
| ====
 | ||
| If you need to resolve the subject token from a different source, you can provide `TokenExchangeReactiveOAuth2AuthorizedClientProvider.setSubjectTokenResolver()` with a custom `Function<OAuth2AuthorizationContext, Mono<OAuth2Token>>`.
 | ||
| ====
 | ||
| 
 | ||
| [TIP]
 | ||
| ====
 | ||
| If you need to resolve an actor token, you can provide `TokenExchangeReactiveOAuth2AuthorizedClientProvider.setActorTokenResolver()` with a custom `Function<OAuth2AuthorizationContext, Mono<OAuth2Token>>`.
 | ||
| ====
 |