spring-authorization-server OAuth2AuthorizationCodeAuthenticationProvider 源码

spring-authorization-server OAuth2AuthorizationCodeAuthenticationProvider 代码

文件路径：/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/authentication/OAuth2AuthorizationCodeAuthenticationProvider.java

/*
 * Copyright 2020-2022 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.security.oauth2.server.authorization.authentication;

import java.security.Principal;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.oauth2.core.AuthorizationGrantType;
import org.springframework.security.oauth2.core.ClaimAccessor;
import org.springframework.security.oauth2.core.ClientAuthenticationMethod;
import org.springframework.security.oauth2.core.OAuth2AccessToken;
import org.springframework.security.oauth2.core.OAuth2AuthenticationException;
import org.springframework.security.oauth2.core.OAuth2Error;
import org.springframework.security.oauth2.core.OAuth2ErrorCodes;
import org.springframework.security.oauth2.core.OAuth2RefreshToken;
import org.springframework.security.oauth2.core.OAuth2Token;
import org.springframework.security.oauth2.core.endpoint.OAuth2AuthorizationRequest;
import org.springframework.security.oauth2.core.endpoint.OAuth2ParameterNames;
import org.springframework.security.oauth2.core.oidc.OidcIdToken;
import org.springframework.security.oauth2.core.oidc.OidcScopes;
import org.springframework.security.oauth2.core.oidc.endpoint.OidcParameterNames;
import org.springframework.security.oauth2.jwt.Jwt;
import org.springframework.security.oauth2.server.authorization.OAuth2Authorization;
import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationCode;
import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationService;
import org.springframework.security.oauth2.server.authorization.OAuth2TokenType;
import org.springframework.security.oauth2.server.authorization.client.RegisteredClient;
import org.springframework.security.oauth2.server.authorization.context.ProviderContextHolder;
import org.springframework.security.oauth2.server.authorization.token.DefaultOAuth2TokenContext;
import org.springframework.security.oauth2.server.authorization.token.OAuth2TokenContext;
import org.springframework.security.oauth2.server.authorization.token.OAuth2TokenGenerator;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;

import static org.springframework.security.oauth2.server.authorization.authentication.OAuth2AuthenticationProviderUtils.getAuthenticatedClientElseThrowInvalidClient;

/**
 * An {@link AuthenticationProvider} implementation for the OAuth 2.0 Authorization Code Grant.
 *
 * @author Joe Grandja
 * @author Daniel Garnier-Moiroux
 * @since 0.0.1
 * @see OAuth2AuthorizationCodeAuthenticationToken
 * @see OAuth2AccessTokenAuthenticationToken
 * @see OAuth2AuthorizationCodeRequestAuthenticationProvider
 * @see OAuth2AuthorizationService
 * @see OAuth2TokenGenerator
 * @see <a target="_blank" href="https://datatracker.ietf.org/doc/html/rfc6749#section-4.1">Section 4.1 Authorization Code Grant</a>
 * @see <a target="_blank" href="https://datatracker.ietf.org/doc/html/rfc6749#section-4.1.3">Section 4.1.3 Access Token Request</a>
 */
public final class OAuth2AuthorizationCodeAuthenticationProvider implements AuthenticationProvider {
	private static final String ERROR_URI = "https://datatracker.ietf.org/doc/html/rfc6749#section-5.2";
	private static final OAuth2TokenType AUTHORIZATION_CODE_TOKEN_TYPE =
			new OAuth2TokenType(OAuth2ParameterNames.CODE);
	private static final OAuth2TokenType ID_TOKEN_TOKEN_TYPE =
			new OAuth2TokenType(OidcParameterNames.ID_TOKEN);
	private final OAuth2AuthorizationService authorizationService;
	private final OAuth2TokenGenerator<? extends OAuth2Token> tokenGenerator;

	/**
	 * Constructs an {@code OAuth2AuthorizationCodeAuthenticationProvider} using the provided parameters.
	 *
	 * @param authorizationService the authorization service
	 * @param tokenGenerator the token generator
	 * @since 0.2.3
	 */
	public OAuth2AuthorizationCodeAuthenticationProvider(OAuth2AuthorizationService authorizationService,
			OAuth2TokenGenerator<? extends OAuth2Token> tokenGenerator) {
		Assert.notNull(authorizationService, "authorizationService cannot be null");
		Assert.notNull(tokenGenerator, "tokenGenerator cannot be null");
		this.authorizationService = authorizationService;
		this.tokenGenerator = tokenGenerator;
	}

	@Override
	public Authentication authenticate(Authentication authentication) throws AuthenticationException {
		OAuth2AuthorizationCodeAuthenticationToken authorizationCodeAuthentication =
				(OAuth2AuthorizationCodeAuthenticationToken) authentication;

		OAuth2ClientAuthenticationToken clientPrincipal =
				getAuthenticatedClientElseThrowInvalidClient(authorizationCodeAuthentication);
		RegisteredClient registeredClient = clientPrincipal.getRegisteredClient();

		OAuth2Authorization authorization = this.authorizationService.findByToken(
				authorizationCodeAuthentication.getCode(), AUTHORIZATION_CODE_TOKEN_TYPE);
		if (authorization == null) {
			throw new OAuth2AuthenticationException(OAuth2ErrorCodes.INVALID_GRANT);
		}
		OAuth2Authorization.Token<OAuth2AuthorizationCode> authorizationCode =
				authorization.getToken(OAuth2AuthorizationCode.class);

		OAuth2AuthorizationRequest authorizationRequest = authorization.getAttribute(
				OAuth2AuthorizationRequest.class.getName());

		if (!registeredClient.getClientId().equals(authorizationRequest.getClientId())) {
			if (!authorizationCode.isInvalidated()) {
				// Invalidate the authorization code given that a different client is attempting to use it
				authorization = OAuth2AuthenticationProviderUtils.invalidate(authorization, authorizationCode.getToken());
				this.authorizationService.save(authorization);
			}
			throw new OAuth2AuthenticationException(OAuth2ErrorCodes.INVALID_GRANT);
		}

		if (StringUtils.hasText(authorizationRequest.getRedirectUri()) &&
				!authorizationRequest.getRedirectUri().equals(authorizationCodeAuthentication.getRedirectUri())) {
			throw new OAuth2AuthenticationException(OAuth2ErrorCodes.INVALID_GRANT);
		}

		if (!authorizationCode.isActive()) {
			throw new OAuth2AuthenticationException(OAuth2ErrorCodes.INVALID_GRANT);
		}

		// @formatter:off
		DefaultOAuth2TokenContext.Builder tokenContextBuilder = DefaultOAuth2TokenContext.builder()
				.registeredClient(registeredClient)
				.principal(authorization.getAttribute(Principal.class.getName()))
				.providerContext(ProviderContextHolder.getProviderContext())
				.authorization(authorization)
				.authorizedScopes(authorization.getAuthorizedScopes())
				.authorizationGrantType(AuthorizationGrantType.AUTHORIZATION_CODE)
				.authorizationGrant(authorizationCodeAuthentication);
		// @formatter:on

		OAuth2Authorization.Builder authorizationBuilder = OAuth2Authorization.from(authorization);

		// ----- Access token -----
		OAuth2TokenContext tokenContext = tokenContextBuilder.tokenType(OAuth2TokenType.ACCESS_TOKEN).build();
		OAuth2Token generatedAccessToken = this.tokenGenerator.generate(tokenContext);
		if (generatedAccessToken == null) {
			OAuth2Error error = new OAuth2Error(OAuth2ErrorCodes.SERVER_ERROR,
					"The token generator failed to generate the access token.", ERROR_URI);
			throw new OAuth2AuthenticationException(error);
		}
		OAuth2AccessToken accessToken = new OAuth2AccessToken(OAuth2AccessToken.TokenType.BEARER,
				generatedAccessToken.getTokenValue(), generatedAccessToken.getIssuedAt(),
				generatedAccessToken.getExpiresAt(), tokenContext.getAuthorizedScopes());
		if (generatedAccessToken instanceof ClaimAccessor) {
			authorizationBuilder.token(accessToken, (metadata) ->
					metadata.put(OAuth2Authorization.Token.CLAIMS_METADATA_NAME, ((ClaimAccessor) generatedAccessToken).getClaims()));
		} else {
			authorizationBuilder.accessToken(accessToken);
		}

		// ----- Refresh token -----
		OAuth2RefreshToken refreshToken = null;
		if (registeredClient.getAuthorizationGrantTypes().contains(AuthorizationGrantType.REFRESH_TOKEN) &&
				// Do not issue refresh token to public client
				!clientPrincipal.getClientAuthenticationMethod().equals(ClientAuthenticationMethod.NONE)) {

			tokenContext = tokenContextBuilder.tokenType(OAuth2TokenType.REFRESH_TOKEN).build();
			OAuth2Token generatedRefreshToken = this.tokenGenerator.generate(tokenContext);
			if (!(generatedRefreshToken instanceof OAuth2RefreshToken)) {
				OAuth2Error error = new OAuth2Error(OAuth2ErrorCodes.SERVER_ERROR,
						"The token generator failed to generate the refresh token.", ERROR_URI);
				throw new OAuth2AuthenticationException(error);
			}
			refreshToken = (OAuth2RefreshToken) generatedRefreshToken;
			authorizationBuilder.refreshToken(refreshToken);
		}

		// ----- ID token -----
		OidcIdToken idToken;
		if (authorizationRequest.getScopes().contains(OidcScopes.OPENID)) {
			// @formatter:off
			tokenContext = tokenContextBuilder
					.tokenType(ID_TOKEN_TOKEN_TYPE)
					.authorization(authorizationBuilder.build())	// ID token customizer may need access to the access token and/or refresh token
					.build();
			// @formatter:on
			OAuth2Token generatedIdToken = this.tokenGenerator.generate(tokenContext);
			if (!(generatedIdToken instanceof Jwt)) {
				OAuth2Error error = new OAuth2Error(OAuth2ErrorCodes.SERVER_ERROR,
						"The token generator failed to generate the ID token.", ERROR_URI);
				throw new OAuth2AuthenticationException(error);
			}
			idToken = new OidcIdToken(generatedIdToken.getTokenValue(), generatedIdToken.getIssuedAt(),
					generatedIdToken.getExpiresAt(), ((Jwt) generatedIdToken).getClaims());
			authorizationBuilder.token(idToken, (metadata) ->
					metadata.put(OAuth2Authorization.Token.CLAIMS_METADATA_NAME, idToken.getClaims()));
		} else {
			idToken = null;
		}

		authorization = authorizationBuilder.build();

		// Invalidate the authorization code as it can only be used once
		authorization = OAuth2AuthenticationProviderUtils.invalidate(authorization, authorizationCode.getToken());

		this.authorizationService.save(authorization);

		Map<String, Object> additionalParameters = Collections.emptyMap();
		if (idToken != null) {
			additionalParameters = new HashMap<>();
			additionalParameters.put(OidcParameterNames.ID_TOKEN, idToken.getTokenValue());
		}

		return new OAuth2AccessTokenAuthenticationToken(
				registeredClient, clientPrincipal, accessToken, refreshToken, additionalParameters);
	}

	@Override
	public boolean supports(Class<?> authentication) {
		return OAuth2AuthorizationCodeAuthenticationToken.class.isAssignableFrom(authentication);
	}

}

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