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package com.founder.sdk.utils;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.security.SecureRandom;
import java.security.cert.X509Certificate;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import com.founder.sdk.FsiServer;
import com.founder.sdk.model.FsiBaseHeader;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpHeaders;

public class HttpUtils {
    private static final Logger LOG = LoggerFactory.getLogger(HttpUtils.class);

    public static byte[] post(String requestUrl, String outputStr, int connectTimeout, int readTimeout, HttpHeaders httpHeaders, boolean isFile) {
        try {
            TrustManager[] tm = { new MyX509TrustManager() };
            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
            sslContext.init(null, tm, new SecureRandom());

            SSLSocketFactory ssf = sslContext.getSocketFactory();

            URL url = new URL(requestUrl);
            HttpURLConnection httpUrlConn;
            if (FsiServer.URL.PROXY_HOST.length() > 0) {
                Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(FsiServer.URL.PROXY_HOST, Integer.valueOf(FsiServer.URL.PROXY_PORT).intValue()));
                httpUrlConn = (HttpURLConnection)url.openConnection(proxy);
            } else {
                httpUrlConn = (HttpURLConnection)url.openConnection();
            }
            InputStream inputStream = new ByteArrayInputStream(new byte[]{});
            try {
                if ((httpUrlConn instanceof HttpsURLConnection)) {
                    HttpsURLConnection httpsConn = (HttpsURLConnection)httpUrlConn;
                    httpsConn.setSSLSocketFactory(ssf);
                }
                httpUrlConn.setRequestProperty("Charset", "UTF-8");
                if (isFile) {
                    httpUrlConn.setRequestProperty("Content-Type", "application/octet-stream");
                    httpUrlConn.setRequestProperty("Connection", "Keep-Alive");// 维持长连接
                } else {
                    httpUrlConn.setRequestProperty("Content-type", "application/json");
                }
                httpUrlConn.setDoOutput(true);
                httpUrlConn.setDoInput(true);
                httpUrlConn.setUseCaches(false);
                httpUrlConn.setReadTimeout(readTimeout);
                httpUrlConn.setConnectTimeout(connectTimeout);
                if (httpHeaders.containsKey("x-tif-paasid")) {
                    httpUrlConn.setRequestProperty("x-tif-paasid", httpHeaders.getFirst("x-tif-paasid"));
                }
                if (httpHeaders.containsKey("x-tif-signature")) {
                    httpUrlConn.setRequestProperty("x-tif-signature", httpHeaders.getFirst("x-tif-signature"));
                }
                if (httpHeaders.containsKey("x-tif-timestamp")) {
                    httpUrlConn.setRequestProperty("x-tif-timestamp", httpHeaders.getFirst("x-tif-timestamp"));
                }
                if (httpHeaders.containsKey("x-tif-nonce")) {
                    httpUrlConn.setRequestProperty("x-tif-nonce", httpHeaders.getFirst("x-tif-nonce"));
                }
                if (httpHeaders.containsKey("x-rio-paasid")) {
                    httpUrlConn.setRequestProperty("x-rio-paasid", httpHeaders.getFirst("x-rio-paasid"));
                }
                if (httpHeaders.containsKey("x-rio-signature")) {
                    httpUrlConn.setRequestProperty("x-rio-signature", httpHeaders.getFirst("x-rio-signature"));
                }
                if (httpHeaders.containsKey("x-rio-timestamp")) {
                    httpUrlConn.setRequestProperty("x-rio-timestamp", httpHeaders.getFirst("x-rio-timestamp"));
                }
                if (httpHeaders.containsKey("x-rio-nonce")) {
                    httpUrlConn.setRequestProperty("x-rio-nonce", httpHeaders.getFirst("x-rio-nonce"));
                }
                httpUrlConn.setRequestMethod("POST");
                if (null != outputStr) {
                    OutputStream outputStream = httpUrlConn.getOutputStream();
                    outputStream.write(outputStr.getBytes(StandardCharsets.UTF_8));
                    outputStream.close();
                }
                int code = httpUrlConn.getResponseCode();//判断响应码getResponseCode()不是200,201,202的话,使用getErrorStream()而不是直接getInputStream()
                LOG.info("打印响应码：" + code);           //https://www.it610.com/article/1295747089854177280.htm
                if (code == HttpURLConnection.HTTP_OK || code == HttpURLConnection.HTTP_CREATED || code == HttpURLConnection.HTTP_ACCEPTED) {
                    inputStream = httpUrlConn.getInputStream();
                } else {
                    inputStream = httpUrlConn.getErrorStream();
                    byte[] buffer = IOUtils.toByteArray(inputStream);
                    String result = IOUtils.toString(buffer,"UTF-8");
                    throw new RuntimeException(result);
                }
                return IOUtils.toByteArray(inputStream);
            } finally {
                inputStream.close();
                httpUrlConn.disconnect();
            }
        } catch (Exception e) {
            LOG.error("http request error url:" + requestUrl, e);
            throw new RuntimeException("http request error url:" + requestUrl + "," + e.getMessage());
        }
    }

    private static class MyX509TrustManager implements X509TrustManager {
        public void checkClientTrusted(X509Certificate[] chain, String authType) {}

        public void checkServerTrusted(X509Certificate[] chain, String authType) {}

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