org.trustedanalytics.servicecatalog.service.ServiceConfig.java Source code

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Here is the source code for org.trustedanalytics.servicecatalog.service.ServiceConfig.java

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/**
 * Copyright (c) 2015 Intel Corporation
 *
 * 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.trustedanalytics.servicecatalog.service;

import static org.springframework.context.annotation.ScopedProxyMode.TARGET_CLASS;
import static org.springframework.web.context.WebApplicationContext.SCOPE_REQUEST;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.context.annotation.Scope;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.security.oauth2.client.DefaultOAuth2ClientContext;
import org.springframework.security.oauth2.client.OAuth2ClientContext;
import org.springframework.security.oauth2.client.OAuth2RestTemplate;
import org.springframework.security.oauth2.client.token.DefaultAccessTokenRequest;
import org.springframework.security.oauth2.client.token.grant.client.ClientCredentialsAccessTokenProvider;
import org.springframework.security.oauth2.client.token.grant.client.ClientCredentialsResourceDetails;
import org.springframework.web.client.RestTemplate;

import org.trustedanalytics.cloud.auth.OAuth2TokenRetriever;

@Configuration
@Profile({ "default", "cloud" })
public class ServiceConfig {

    /**
     * This RestTemplate is injected into ccClient bean in {@link org.trustedanalytics.servicecatalog.cf.CcConfig}
     * which is being created with scope per-request and each time alters this RestTamplate by setting
     * authorization token. Although RestTemplate is thread-safe and in general case can be injected as singleton, in
     * this case it MUST also be created with per-request scope to avoid security risk.
     * @return
     */
    @Bean
    @Scope(value = SCOPE_REQUEST, proxyMode = TARGET_CLASS)
    protected RestTemplate restTemplateWithOAuth2Token() {
        /*Default SimpleClientHttpRequestFactory caused random "Unexpected end of file" errors while createing
        requests to Clound Controller*/
        HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
        return new RestTemplate(factory);
    }

    @Bean
    protected OAuth2TokenRetriever tokenRetriever() {
        return new OAuth2TokenRetriever();
    }

    @Bean
    public OAuth2ClientContext clientContext() {
        return new DefaultOAuth2ClientContext(new DefaultAccessTokenRequest());
    }

    @Bean
    @ConfigurationProperties("spring.oauth2.client")
    public ClientCredentialsResourceDetails clientCredentials() {
        return new ClientCredentialsResourceDetails();
    }

    @Bean
    @Scope(value = SCOPE_REQUEST, proxyMode = TARGET_CLASS)
    public OAuth2RestTemplate clientRestTemplate(OAuth2ClientContext clientContext,
            ClientCredentialsResourceDetails clientCredentials) {
        OAuth2RestTemplate template = new OAuth2RestTemplate(clientCredentials, clientContext);
        ClientCredentialsAccessTokenProvider provider = new ClientCredentialsAccessTokenProvider();
        template.setAccessTokenProvider(provider);
        return template;
    }
}