org.springframework.cloud.config.server.support.HttpClientSupport.java Source code

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Here is the source code for org.springframework.cloud.config.server.support.HttpClientSupport.java

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/*
 * Copyright 2018-2019 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.cloud.config.server.support;

import java.net.ProxySelector;
import java.security.GeneralSecurityException;

import org.apache.http.client.config.RequestConfig;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.client.SystemDefaultCredentialsProvider;
import org.apache.http.impl.conn.SystemDefaultRoutePlanner;
import org.apache.http.ssl.SSLContextBuilder;

import org.springframework.cloud.config.server.proxy.ProxyHostCredentialsProvider;
import org.springframework.cloud.config.server.proxy.ProxyHostProperties;
import org.springframework.cloud.config.server.proxy.SchemeBasedRoutePlanner;
import org.springframework.util.CollectionUtils;

/**
 * @author Dylan Roberts
 */
public final class HttpClientSupport {

    private HttpClientSupport() {
        throw new IllegalStateException("Can't instantiate a utility class");
    }

    public static HttpClientBuilder builder(HttpEnvironmentRepositoryProperties environmentProperties)
            throws GeneralSecurityException {
        SSLContextBuilder sslContextBuilder = new SSLContextBuilder();
        HttpClientBuilder httpClientBuilder = HttpClients.custom();

        if (environmentProperties.isSkipSslValidation()) {
            sslContextBuilder.loadTrustMaterial(null, (certificate, authType) -> true);
            httpClientBuilder.setSSLHostnameVerifier(new NoopHostnameVerifier());
        }

        if (!CollectionUtils.isEmpty(environmentProperties.getProxy())) {
            ProxyHostProperties httpsProxy = environmentProperties.getProxy()
                    .get(ProxyHostProperties.ProxyForScheme.HTTPS);
            ProxyHostProperties httpProxy = environmentProperties.getProxy()
                    .get(ProxyHostProperties.ProxyForScheme.HTTP);

            httpClientBuilder.setRoutePlanner(new SchemeBasedRoutePlanner(httpsProxy, httpProxy));
            httpClientBuilder
                    .setDefaultCredentialsProvider(new ProxyHostCredentialsProvider(httpProxy, httpsProxy));
        } else {
            httpClientBuilder.setRoutePlanner(new SystemDefaultRoutePlanner(ProxySelector.getDefault()));
            httpClientBuilder.setDefaultCredentialsProvider(new SystemDefaultCredentialsProvider());
        }

        int timeout = environmentProperties.getTimeout() * 1000;
        return httpClientBuilder.setSSLContext(sslContextBuilder.build()).setDefaultRequestConfig(
                RequestConfig.custom().setSocketTimeout(timeout).setConnectTimeout(timeout).build());
    }

}