从CRM沙盒化插件OnPremise调用外部WCF服务（使用生成的客户端）失败

Question

如何在插件中调用HTTPS WCF Web服务，插件程序集以沙箱模式注册。我收到System.Security.SecurityException异常，有人可以提供通往所有https Web服务的方法。我的代码如下：

BasicHttpBinding myBinding = new BasicHttpBinding();
myBinding.MaxReceivedMessageSize = Int32.MaxValue;
myBinding.Name = “basicHttpBinding”;
if (EndPoint.ToLower().Contains(“https://”))
{
//Throwing exception here – System.Security.SecurityException exception,
ServicePointManager.ServerCertificateValidationCallback += (sendr, cert, chain, sslPolicyErrors) => true;
ServicePointManager.SecurityProtocol = (SecurityProtocolType)768 | (SecurityProtocolType)3072 | (SecurityProtocolType)192;
myBinding.Security.Mode = BasicHttpSecurityMode.Transport;
}
else
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
myBinding.Security.Mode = BasicHttpSecurityMode.None;
}
myBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None;
myBinding.Security.Transport.ProxyCredentialType = HttpProxyCredentialType.None;
myBinding.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.UserName;
EndpointAddress endPointAddress = new EndpointAddress(EndPoint);
WebIALClient myClient = new WebIALClient(myBinding, endPointAddress)

Answer 1

由于您使用的是本地版本，因此可以在非沙盒模式下注册插件程序集。即Isolation mode = none以克服此类错误。

[如果要使用沙箱模式，请尝试使用WebClient类来调用WCF服务调用。 Read more

using (WebClient client = new WebClient())
                {
                    byte[] responseBytes = client.DownloadData(webAddress);
                    string response = Encoding.UTF8.GetString(responseBytes);
                    tracingService.Trace(response);

                    // For demonstration purposes, throw an exception so that the response
                    // is shown in the trace dialog of the Microsoft Dynamics CRM user interface.
                    throw new InvalidPluginExecutionException("WebClientPlugin completed successfully.");
                }

Answer 2

您可以尝试并且还包括：使用System.Web.Http.Cors;

[EnableCors（来源：“ ”，标题：“”，方法：“ *”）]

[Route（“ api / ConvertUpload / {env} / {id}”）]

公共字符串Get（字符串env，字符串id）{

  return "hi";

}

您可能必须使用@Arun提到的WebClient。