/// <summary>
/// HTTP Post请求
/// </summary>
/// <param name="uri">HTTP接口Url，不带协议和端口，如/artemis/api/resource/v1/org/advance/orgList</param>
/// <param name="body">请求参数</param>
/// <return>请求结果</return>
public async Task <byte[]> PostByteAsync(string uri, string body)
{
Dictionary <string, string> header = new Dictionary <string, string>();
if (HikSecurityContext.Address.IsNotWhiteSpace())
{
//sb.Append("/" + HikSecurityContext.Address);
uri = "/" + HikSecurityContext.Address + uri;
}
// 初始化请求：组装请求头，设置远程证书自动验证通过
InitRequest(header, uri, body, HikSecurityContext.IsHttps);
// build web request object
string compluteUrl = (HikSecurityContext.IsHttps ? "https://" : "http://") + (HikSecurityContext.Ip + ":") +
(HikSecurityContext.Port.ToString()) + uri;
StringBuilder sbHeader = new StringBuilder();
// 创建POST请求
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(compluteUrl);
req.KeepAlive = false;
req.ProtocolVersion = HttpVersion.Version11;
req.AllowAutoRedirect = false; // 不允许自动重定向
req.Method = "POST";
req.Timeout = HikSecurityContext.TimeOut * 1000; // 传入是秒，需要转换成毫秒
req.Accept = header["Accept"];
req.ContentType = header["Content-Type"];
foreach (string headerKey in header.Keys)
{
if (headerKey.Contains("x-ca-"))
{
req.Headers.Add(headerKey + ":" + header[headerKey]);
}
}
foreach (var reqHeader in header)
{
sbHeader.Append($"{reqHeader.Key}:{reqHeader.Value} \n ");
}
//解决远程证书无效
if (HikSecurityContext.IsHttps)
{
//req.ServerCertificateValidationCallback = (s, c, h, e) => true;
ServicePointManager.ServerCertificateValidationCallback =
new RemoteCertificateValidationCallback(CheckValidationResult);
}
if (!string.IsNullOrWhiteSpace(body))
{
byte[] postBytes = Encoding.UTF8.GetBytes(body);
req.ContentLength = postBytes.Length;
Stream reqStream = null;
reqStream = req.GetRequestStream();
reqStream.Write(postBytes, 0, postBytes.Length);
reqStream.Close();
}
HttpWebResponse rsp = null;
try
{
rsp = (HttpWebResponse)(await req.GetResponseAsync());
if (HttpStatusCode.OK == rsp.StatusCode)
{
Stream rspStream = rsp.GetResponseStream();
StreamReader sr = new StreamReader(rspStream);
string strStream = sr.ReadToEnd();
long streamLength = strStream.Length;
byte[] response = System.Text.Encoding.UTF8.GetBytes(strStream);
rsp.Close();
WriteClientLog(uri, "Post" + compluteUrl, sbHeader + req.GetSerializeObject() + "; body" + body, Encoding.Default.GetString(response));
return(response);
}
else if (HttpStatusCode.Found == rsp.StatusCode || HttpStatusCode.Moved == rsp.StatusCode) // 302/301 redirect
{
WriteClientLog(uri, "Post" + compluteUrl, req.GetSerializeObject() + "; header:" + sbHeader + "; body" + body, rsp.GetSerializeObject());
}
rsp.Close();
}
catch (Exception ex)
{
WriteClientLog(uri, "Post" + compluteUrl, req.GetSerializeObject() + "; header:" + sbHeader + "; body" + body, ex.GetSerializeObject());
throw new MyException("请求外部接口异常");
}
return(null);
}