/*
 * Copyright 2012-2018 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
 *
 *      http://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.boot.autoconfigure.security.oauth2.client.servlet;

import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.oauth2.client.InMemoryOAuth2AuthorizedClientService;
import org.springframework.security.oauth2.client.OAuth2AuthorizedClientService;
import org.springframework.security.oauth2.client.registration.ClientRegistrationRepository;
import org.springframework.security.oauth2.client.web.AuthenticatedPrincipalOAuth2AuthorizedClientRepository;
import org.springframework.security.oauth2.client.web.OAuth2AuthorizedClientRepository;

/**
 * {@link WebSecurityConfigurerAdapter} to add OAuth client support.
 *
 * @author Madhura Bhave
 * @author Phillip Webb
 * @since 2.0.0
 */
@Configuration
@ConditionalOnBean(ClientRegistrationRepository.class)
class OAuth2WebSecurityConfiguration {

	@Bean
	@ConditionalOnMissingBean
	public OAuth2AuthorizedClientService authorizedClientService(
			ClientRegistrationRepository clientRegistrationRepository) {
		return new InMemoryOAuth2AuthorizedClientService(clientRegistrationRepository);
	}

	@Bean
	@ConditionalOnMissingBean
	public OAuth2AuthorizedClientRepository authorizedClientRepository(
			OAuth2AuthorizedClientService authorizedClientService) {
		return new AuthenticatedPrincipalOAuth2AuthorizedClientRepository(
				authorizedClientService);
	}

	@Configuration
	@ConditionalOnMissingBean(WebSecurityConfigurerAdapter.class)
	static class OAuth2WebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {

		@Override
		protected void configure(HttpSecurity http) throws Exception {
			http.authorizeRequests().anyRequest().authenticated().and().oauth2Login()
					.and().oauth2Client().authorizationCodeGrant();
		}

	}

}

/*
 * Copyright 2012-2018 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
 *
 *      http://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.boot.autoconfigure.security.oauth2.client.servlet;

import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.oauth2.client.InMemoryOAuth2AuthorizedClientService;
import org.springframework.security.oauth2.client.OAuth2AuthorizedClientService;
import org.springframework.security.oauth2.client.registration.ClientRegistrationRepository;
import org.springframework.security.oauth2.client.web.AuthenticatedPrincipalOAuth2AuthorizedClientRepository;
import org.springframework.security.oauth2.client.web.OAuth2AuthorizedClientRepository;

/**
 * {@link WebSecurityConfigurerAdapter} to add OAuth client support.
 *
 * @author Madhura Bhave
 * @author Phillip Webb
 * @since 2.0.0
 */
@Configuration
@ConditionalOnBean(ClientRegistrationRepository.class)
class OAuth2WebSecurityConfiguration {

	@Bean
	@ConditionalOnMissingBean
	public OAuth2AuthorizedClientService authorizedClientService(
			ClientRegistrationRepository clientRegistrationRepository) {
		return new InMemoryOAuth2AuthorizedClientService(clientRegistrationRepository);
	}

	@Bean
	@ConditionalOnMissingBean
	public OAuth2AuthorizedClientRepository authorizedClientRepository(
			OAuth2AuthorizedClientService authorizedClientService) {
		return new AuthenticatedPrincipalOAuth2AuthorizedClientRepository(
				authorizedClientService);
	}

	@Configuration
	@ConditionalOnMissingBean(WebSecurityConfigurerAdapter.class)
	static class OAuth2WebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {

		@Override
		protected void configure(HttpSecurity http) throws Exception {
			http.authorizeRequests().anyRequest().authenticated().and().oauth2Login()
					.and().oauth2Client();
		}

	}

}

Remove explicit call to `authorizationCodeGrant`