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using DS.Module.Core.Extensions;
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using DS.Module.Core.Helpers;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using System.Net.Security;
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using System.Security.Cryptography.X509Certificates;
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using System.Text;
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using System.Threading.Tasks;
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using static System.Net.Mime.MediaTypeNames;
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namespace DS.Module.DjyServiceStatus
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{
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/// <summary>
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/// 大简云服务封装请求工具类
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/// </summary>
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public class DjyHttpUtillib
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{
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/// 平台ip
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/// </summary>
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private static string _ip;
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/// <summary>
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/// 平台端口
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/// </summary>
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private static int _port = 443;
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/// <summary>
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/// 平台APPKey
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/// </summary>
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private static string _appkey;
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/// <summary>
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/// 平台APPSecret
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/// </summary>
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private static string _secret;
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/// <summary>
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/// 是否使用HTTPS协议
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/// </summary>
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private static bool _isHttps = true;
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/// <summary>
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/// 设置信息参数
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/// </summary>
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/// <param name="appkey">合作方APPKey</param>
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/// <param name="secret">合作方APPSecret</param>
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/// <param name="ip">平台IP</param>
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/// <param name="port">平台端口,默认HTTPS的443端口</param>
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/// <param name="isHttps">是否启用HTTPS协议,默认HTTPS</param>
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/// <return></return>
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public static void SetPlatformInfo(string appkey, string secret, string ip, int port = 443, bool isHttps = true)
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{
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_appkey = appkey;
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_secret = secret;
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_ip = ip;
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_port = port;
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_isHttps = isHttps;
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// 设置并发数,如不设置默认为2
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ServicePointManager.DefaultConnectionLimit = 512;
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}
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/// <summary>
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/// HTTP GET请求
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/// </summary>
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/// <param name="uri">HTTP接口Url,不带协议和端口,如/artemis/api/resource/v1/cameras/indexCode?cameraIndexCode=a10cafaa777c49a5af92c165c95970e0</param>
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/// <param name="timeout">请求超时时间,单位:秒</param>
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/// <returns></returns>
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public static string HttpGet(string uri, int timeout)
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{
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Dictionary<string, string> header = new Dictionary<string, string>();
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// 初始化请求:组装请求头,设置远程证书自动验证通过
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initRequest(header, uri, "", false);
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// build web request object
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StringBuilder sb = new StringBuilder();
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sb.Append(_isHttps ? "https://" : "http://").Append(_ip).Append(":").Append(_port.ToString()).Append(uri);
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HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(sb.ToString());
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req.KeepAlive = false;
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req.ProtocolVersion = HttpVersion.Version11;
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req.AllowAutoRedirect = false; // 不允许自动重定向
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req.Method = "GET";
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req.Timeout = timeout * 1000; // 传入是秒,需要转换成毫秒
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req.Accept = header["Accept"];
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req.ContentType = header["Content-Type"];
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foreach (string headerKey in header.Keys)
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{
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if (headerKey.Contains("USER_KEY"))
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{
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req.Headers.Add(headerKey + ":" + header[headerKey]);
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}
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if (headerKey.Contains("USER_SECRET"))
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{
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req.Headers.Add(headerKey + ":" + header[headerKey]);
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}
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//if (headerKey.Contains("sign"))
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//{
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// req.Headers.Add(headerKey + ":" + header[headerKey]);
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//}
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}
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HttpWebResponse rsp = null;
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try
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{
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rsp = (HttpWebResponse)req.GetResponse();
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if (HttpStatusCode.OK == rsp.StatusCode)
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{
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Stream rspStream = rsp.GetResponseStream(); // 响应内容字节流
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StreamReader sr = new StreamReader(rspStream);
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string strStream = sr.ReadToEnd();
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long streamLength = strStream.Length;
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byte[] response = System.Text.Encoding.UTF8.GetBytes(strStream);
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rsp.Close();
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return System.Text.Encoding.UTF8.GetString(response);
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}
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else if (HttpStatusCode.Found == rsp.StatusCode || HttpStatusCode.Moved == rsp.StatusCode) // 302/301 redirect
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{
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string reqUrl = rsp.Headers["Location"].ToString(); // 获取重定向URL
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WebRequest wreq = WebRequest.Create(reqUrl); // 重定向请求对象
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WebResponse wrsp = wreq.GetResponse(); // 重定向响应
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long streamLength = wrsp.ContentLength; // 重定向响应内容长度
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Stream rspStream = wrsp.GetResponseStream(); // 响应内容字节流
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byte[] response = new byte[streamLength];
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rspStream.Read(response, 0, (int)streamLength); // 读取响应内容至byte数组
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rspStream.Close();
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rsp.Close();
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return System.Text.Encoding.UTF8.GetString(response);
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}
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rsp.Close();
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}
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catch (WebException e)
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{
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if (rsp != null)
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{
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rsp.Close();
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}
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}
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return null;
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}
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/// <summary>
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/// HTTP Post请求
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/// </summary>
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/// <param name="uri">HTTP接口Url,不带协议和端口,如/artemis/api/resource/v1/org/advance/orgList</param>
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/// <param name="body">请求参数</param>
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/// <param name="timeout">请求超时时间,单位:秒</param>
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/// <return>请求结果</return>
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public static string HttpPost(string uri, string body, int timeout)
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{
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Dictionary<string, string> header = new Dictionary<string, string>();
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// 初始化请求:组装请求头,设置远程证书自动验证通过
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initRequest(header, uri, body, true);
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// build web request object
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StringBuilder sb = new StringBuilder();
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sb.Append(_isHttps ? "https://" : "http://").Append(_ip).Append(":").Append(_port.ToString()).Append(uri);
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// 创建POST请求
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HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(sb.ToString());
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req.KeepAlive = false;
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req.ProtocolVersion = HttpVersion.Version11;
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req.AllowAutoRedirect = false; // 不允许自动重定向
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req.Method = "POST";
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req.Timeout = timeout * 1000; // 传入是秒,需要转换成毫秒
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req.Accept = header["Accept"];
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req.ContentType = header["Content-Type"];
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req.UserAgent = "PostmanRuntime/7.26.8";
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foreach (string headerKey in header.Keys)
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{
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if (headerKey.Contains("USER_KEY"))
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{
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req.Headers.Add(headerKey + ":" + header[headerKey]);
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}
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if (headerKey.Contains("USER_SECRET"))
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{
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req.Headers.Add(headerKey + ":" + header[headerKey]);
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}
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//if (headerKey.Contains("sign"))
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//{
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// req.Headers.Add(headerKey + ":" + header[headerKey]);
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//}
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}
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byte[] data = Encoding.UTF8.GetBytes(body);
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req.ContentLength = data.Length;
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using (Stream reqStream = req.GetRequestStream())
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{
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reqStream.Write(data, 0, data.Length);
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reqStream.Close();
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}
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HttpWebResponse response = (HttpWebResponse)req.GetResponse();
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Stream stream = response.GetResponseStream();
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Encoding encode = Encoding.UTF8;
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StreamReader reader = new StreamReader(stream, encode);
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string content = reader.ReadToEnd();
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stream.Close();
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reader.Close();
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return content;
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}
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/// <summary>
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/// 远程证书验证
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="cert"></param>
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/// <param name="chain"></param>
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/// <param name="error"></param>
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/// <returns>验证是否通过,始终通过</returns>
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private static bool remoteCertificateValidate(object sender, X509Certificate cert, X509Chain chain,
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SslPolicyErrors error)
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{
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return true;
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}
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private static void initRequest(Dictionary<string, string> header, string url, string body, bool isPost)
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{
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// Accept
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// string accept = "application/json"; // "*/*";
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string accept = "*/*"; // "*/*";
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header.Add("Accept", accept);
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// ContentType
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string contentType = "application/json";
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header.Add("Content-Type", contentType);
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// appId
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header.Add("appId", _appkey);
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var timestamp = DateTime.Now.DateToTimeStamp();
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// build string to sign
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string signedStr = MD5Helper.Md5EncryptLowerCase(timestamp + _secret);
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// timestamp
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header.Add("timestamp", DateTime.Now.DateToTimeStamp());
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// sign
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header.Add("sign", signedStr);
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if (_isHttps)
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{
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// set remote certificate Validation auto pass
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ServicePointManager.ServerCertificateValidationCallback =
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new System.Net.Security.RemoteCertificateValidationCallback(remoteCertificateValidate);
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// FIX:修复不同.Net版对一些SecurityProtocolType枚举支持情况不一致导致编译失败等问题,这里统一使用数值
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// ServicePointManager.SecurityProtocol = (SecurityProtocolType)48 | (SecurityProtocolType)3072 |
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// (SecurityProtocolType)768 | (SecurityProtocolType)192 ;
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// ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
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}
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}
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}
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}
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