package com.util;

import org.apache.http.HttpHost;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.protocol.HTTP;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

public class HttpsClientUtil {
    private static HttpClientContext context = HttpClientContext.create();

    //如果訪問不了請使用代理,免費代理伺服器地址查詢：http://31f.cn/
    private static HttpHost proxy = new HttpHost("127.0.0.1", 63129, "http");

    //ConnectionRequestTimeout,從連線池中獲取可用連線超時
    //ConnectTimeout,連線目標超時
    //SocketTimeout,等待響應超時（讀取資料超時）
    private static RequestConfig requestConfig = RequestConfig.custom()
            .setProxy(proxy)
            .setConnectTimeout(120000)
            .setSocketTimeout(60000)
            .setConnectionRequestTimeout(60000).build();

    //https
    private static SSLConnectionSocketFactory socketFactory;
    private static TrustManager manager = new X509TrustManager() {
        @Override
        public void checkClientTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {

        }

        @Override
        public void checkServerTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {

        }

        @Override
        public X509Certificate[] getAcceptedIssuers() {
            return null;
        }
    };

    private static PoolingHttpClientConnectionManager connectionManager;

    static {
        try {
            SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(null, new TrustManager[]{manager}, null);
            socketFactory = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
            Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                    .register("http", PlainConnectionSocketFactory.INSTANCE)
                    .register("https", socketFactory).build();
            connectionManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (KeyManagementException e) {
            e.printStackTrace();
        }
    }

    public static CloseableHttpResponse doJsonPost(String url, String json) {
        CloseableHttpClient httpClient = HttpClients.custom()
                .setConnectionManager(connectionManager)
                .setDefaultRequestConfig(requestConfig).build();
        HttpPost httpPost = new HttpPost(url);
        //解決中文亂碼問題
        StringEntity entity = new StringEntity(json, "utf-8");
        httpPost.setEntity(entity);
        httpPost.addHeader(HTTP.CONTENT_TYPE, "application/json");
        httpPost.addHeader("charset", "utf-8");
        CloseableHttpResponse response = null;
        try {
            response = httpClient.execute(httpPost, context);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return response;
    }

}