130 lines
6.1 KiB
Java
130 lines
6.1 KiB
Java
/*
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* Copyright 2020-2025 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample.extgrant;
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import org.springframework.security.authentication.AuthenticationProvider;
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import org.springframework.security.core.Authentication;
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import org.springframework.security.core.AuthenticationException;
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import org.springframework.security.oauth2.core.ClaimAccessor;
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import org.springframework.security.oauth2.core.OAuth2AccessToken;
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import org.springframework.security.oauth2.core.OAuth2AuthenticationException;
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import org.springframework.security.oauth2.core.OAuth2Error;
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import org.springframework.security.oauth2.core.OAuth2ErrorCodes;
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import org.springframework.security.oauth2.core.OAuth2Token;
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import org.springframework.security.oauth2.server.authorization.OAuth2Authorization;
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import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationService;
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import org.springframework.security.oauth2.server.authorization.OAuth2TokenType;
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import org.springframework.security.oauth2.server.authorization.authentication.OAuth2AccessTokenAuthenticationToken;
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import org.springframework.security.oauth2.server.authorization.authentication.OAuth2ClientAuthenticationToken;
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import org.springframework.security.oauth2.server.authorization.client.RegisteredClient;
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import org.springframework.security.oauth2.server.authorization.context.AuthorizationServerContextHolder;
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import org.springframework.security.oauth2.server.authorization.token.DefaultOAuth2TokenContext;
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import org.springframework.security.oauth2.server.authorization.token.OAuth2TokenContext;
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import org.springframework.security.oauth2.server.authorization.token.OAuth2TokenGenerator;
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import org.springframework.util.Assert;
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public class CustomCodeGrantAuthenticationProvider implements AuthenticationProvider {
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// @fold:on
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private final OAuth2AuthorizationService authorizationService;
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private final OAuth2TokenGenerator<? extends OAuth2Token> tokenGenerator;
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public CustomCodeGrantAuthenticationProvider(OAuth2AuthorizationService authorizationService,
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OAuth2TokenGenerator<? extends OAuth2Token> tokenGenerator) {
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Assert.notNull(authorizationService, "authorizationService cannot be null");
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Assert.notNull(tokenGenerator, "tokenGenerator cannot be null");
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this.authorizationService = authorizationService;
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this.tokenGenerator = tokenGenerator;
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}
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// @fold:off
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@Override
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public Authentication authenticate(Authentication authentication) throws AuthenticationException {
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CustomCodeGrantAuthenticationToken customCodeGrantAuthentication =
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(CustomCodeGrantAuthenticationToken) authentication;
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// Ensure the client is authenticated
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OAuth2ClientAuthenticationToken clientPrincipal =
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getAuthenticatedClientElseThrowInvalidClient(customCodeGrantAuthentication);
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RegisteredClient registeredClient = clientPrincipal.getRegisteredClient();
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// Ensure the client is configured to use this authorization grant type
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if (!registeredClient.getAuthorizationGrantTypes().contains(customCodeGrantAuthentication.getGrantType())) {
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throw new OAuth2AuthenticationException(OAuth2ErrorCodes.UNAUTHORIZED_CLIENT);
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}
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// TODO Validate the code parameter
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// Generate the access token
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OAuth2TokenContext tokenContext = DefaultOAuth2TokenContext.builder()
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.registeredClient(registeredClient)
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.principal(clientPrincipal)
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.authorizationServerContext(AuthorizationServerContextHolder.getContext())
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.tokenType(OAuth2TokenType.ACCESS_TOKEN)
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.authorizationGrantType(customCodeGrantAuthentication.getGrantType())
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.authorizationGrant(customCodeGrantAuthentication)
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.build();
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OAuth2Token generatedAccessToken = this.tokenGenerator.generate(tokenContext);
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if (generatedAccessToken == null) {
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OAuth2Error error = new OAuth2Error(OAuth2ErrorCodes.SERVER_ERROR,
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"The token generator failed to generate the access token.", null);
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throw new OAuth2AuthenticationException(error);
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}
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OAuth2AccessToken accessToken = new OAuth2AccessToken(OAuth2AccessToken.TokenType.BEARER,
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generatedAccessToken.getTokenValue(), generatedAccessToken.getIssuedAt(),
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generatedAccessToken.getExpiresAt(), null);
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// Initialize the OAuth2Authorization
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OAuth2Authorization.Builder authorizationBuilder = OAuth2Authorization.withRegisteredClient(registeredClient)
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.principalName(clientPrincipal.getName())
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.authorizationGrantType(customCodeGrantAuthentication.getGrantType());
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if (generatedAccessToken instanceof ClaimAccessor claimAccessor) {
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authorizationBuilder.token(accessToken, (metadata) ->
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metadata.put(
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OAuth2Authorization.Token.CLAIMS_METADATA_NAME,
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claimAccessor.getClaims())
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);
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} else {
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authorizationBuilder.accessToken(accessToken);
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}
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OAuth2Authorization authorization = authorizationBuilder.build();
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// Save the OAuth2Authorization
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this.authorizationService.save(authorization);
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return new OAuth2AccessTokenAuthenticationToken(registeredClient, clientPrincipal, accessToken);
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}
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@Override
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public boolean supports(Class<?> authentication) {
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return CustomCodeGrantAuthenticationToken.class.isAssignableFrom(authentication);
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}
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// @fold:on
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private static OAuth2ClientAuthenticationToken getAuthenticatedClientElseThrowInvalidClient(Authentication authentication) {
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OAuth2ClientAuthenticationToken clientPrincipal = null;
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if (OAuth2ClientAuthenticationToken.class.isAssignableFrom(authentication.getPrincipal().getClass())) {
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clientPrincipal = (OAuth2ClientAuthenticationToken) authentication.getPrincipal();
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}
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if (clientPrincipal != null && clientPrincipal.isAuthenticated()) {
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return clientPrincipal;
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}
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throw new OAuth2AuthenticationException(OAuth2ErrorCodes.INVALID_CLIENT);
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}
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// @fold:off
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}
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