128 lines
6.4 KiB
Java
128 lines
6.4 KiB
Java
/*
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* Copyright 2020 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 org.springframework.security.oauth2.server.authorization.authentication;
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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.crypto.keygen.Base64StringKeyGenerator;
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import org.springframework.security.crypto.keygen.StringKeyGenerator;
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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.endpoint.OAuth2AuthorizationRequest;
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import org.springframework.security.oauth2.server.authorization.OAuth2Authorization;
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import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationAttributeNames;
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import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationService;
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import org.springframework.security.oauth2.server.authorization.TokenType;
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import org.springframework.security.oauth2.server.authorization.client.RegisteredClientRepository;
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import org.springframework.util.Assert;
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import org.springframework.util.StringUtils;
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import java.time.Instant;
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import java.time.temporal.ChronoUnit;
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import java.util.Base64;
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/**
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* An {@link AuthenticationProvider} implementation for the OAuth 2.0 Authorization Code Grant.
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*
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* @author Joe Grandja
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* @since 0.0.1
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* @see OAuth2AuthorizationCodeAuthenticationToken
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* @see OAuth2AccessTokenAuthenticationToken
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* @see RegisteredClientRepository
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* @see OAuth2AuthorizationService
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* @see <a target="_blank" href="https://tools.ietf.org/html/rfc6749#section-4.1">Section 4.1 Authorization Code Grant</a>
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* @see <a target="_blank" href="https://tools.ietf.org/html/rfc6749#section-4.1.3">Section 4.1.3 Access Token Request</a>
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*/
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public class OAuth2AuthorizationCodeAuthenticationProvider implements AuthenticationProvider {
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private final RegisteredClientRepository registeredClientRepository;
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private final OAuth2AuthorizationService authorizationService;
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private final StringKeyGenerator accessTokenGenerator = new Base64StringKeyGenerator(Base64.getUrlEncoder());
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/**
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* Constructs an {@code OAuth2AuthorizationCodeAuthenticationProvider} using the provided parameters.
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*
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* @param registeredClientRepository the repository of registered clients
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* @param authorizationService the authorization service
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*/
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public OAuth2AuthorizationCodeAuthenticationProvider(RegisteredClientRepository registeredClientRepository,
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OAuth2AuthorizationService authorizationService) {
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Assert.notNull(registeredClientRepository, "registeredClientRepository cannot be null");
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Assert.notNull(authorizationService, "authorizationService cannot be null");
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this.registeredClientRepository = registeredClientRepository;
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this.authorizationService = authorizationService;
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}
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@Override
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public Authentication authenticate(Authentication authentication) throws AuthenticationException {
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OAuth2AuthorizationCodeAuthenticationToken authorizationCodeAuthentication =
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(OAuth2AuthorizationCodeAuthenticationToken) authentication;
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OAuth2ClientAuthenticationToken clientPrincipal = null;
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if (OAuth2ClientAuthenticationToken.class.isAssignableFrom(authorizationCodeAuthentication.getPrincipal().getClass())) {
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clientPrincipal = (OAuth2ClientAuthenticationToken) authorizationCodeAuthentication.getPrincipal();
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}
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if (clientPrincipal == null || !clientPrincipal.isAuthenticated()) {
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throw new OAuth2AuthenticationException(new OAuth2Error(OAuth2ErrorCodes.INVALID_CLIENT));
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}
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// TODO Authenticate public client
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// A client MAY use the "client_id" request parameter to identify itself
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// when sending requests to the token endpoint.
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// In the "authorization_code" "grant_type" request to the token endpoint,
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// an unauthenticated client MUST send its "client_id" to prevent itself
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// from inadvertently accepting a code intended for a client with a different "client_id".
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// This protects the client from substitution of the authentication code.
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OAuth2Authorization authorization = this.authorizationService.findByTokenAndTokenType(
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authorizationCodeAuthentication.getCode(), TokenType.AUTHORIZATION_CODE);
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if (authorization == null) {
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throw new OAuth2AuthenticationException(new OAuth2Error(OAuth2ErrorCodes.INVALID_GRANT));
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}
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if (!clientPrincipal.getRegisteredClient().getId().equals(authorization.getRegisteredClientId())) {
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throw new OAuth2AuthenticationException(new OAuth2Error(OAuth2ErrorCodes.INVALID_GRANT));
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}
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OAuth2AuthorizationRequest authorizationRequest = authorization.getAttribute(
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OAuth2AuthorizationAttributeNames.AUTHORIZATION_REQUEST);
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if (StringUtils.hasText(authorizationRequest.getRedirectUri()) &&
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!authorizationRequest.getRedirectUri().equals(authorizationCodeAuthentication.getRedirectUri())) {
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throw new OAuth2AuthenticationException(new OAuth2Error(OAuth2ErrorCodes.INVALID_GRANT));
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}
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String tokenValue = this.accessTokenGenerator.generateKey();
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Instant issuedAt = Instant.now();
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Instant expiresAt = issuedAt.plus(1, ChronoUnit.HOURS); // TODO Allow configuration for access token lifespan
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OAuth2AccessToken accessToken = new OAuth2AccessToken(OAuth2AccessToken.TokenType.BEARER,
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tokenValue, issuedAt, expiresAt, authorizationRequest.getScopes());
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authorization = OAuth2Authorization.from(authorization)
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.accessToken(accessToken)
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.build();
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this.authorizationService.save(authorization);
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return new OAuth2AccessTokenAuthenticationToken(
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clientPrincipal.getRegisteredClient(), 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 OAuth2AuthorizationCodeAuthenticationToken.class.isAssignableFrom(authentication);
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}
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}
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