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Calling External WCF Service (using generated client) from CRM sandboxed plugin OnPremise is failing

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Posted on by Shubh_K

Working on CRM 365 - Version 1612 (9.0.11.9) (DB 9.0.11.9) on-premises.

How to call HTTPS WCF web service in Plugin, plugin assembly is registered in sandbox mode. I am getting System.Security.SecurityException exception, Can somebody please provide the way to all https web service.

I have also tried after changing isolation mode to None, but getting following exception:-

{"Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."}

My code is below :

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)
CompanyDetailsResponse response = myClient.GetCompanyDetails(request);

Can anyone please suggest how to call the external wcf service in SSL.

Thanks

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Gilmeyer on at

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Hi,

That's a generic Security Exception.

Could you please add the below try-catch statement to your plugin, so that we can get the real exception.

                try

                {

                    // Your code

                }

                catch (System.Security.SecurityException secEx)

                {

                    throw new InvalidPluginExecutionException(String.Format("An error occurred in the plug-in: {0} \n {1}.", secEx.Message, secEx.StackTrace);

                    tracingService.Trace(String.Format("Plug-in failed: {0} {1}", secEx.Message, secEx.StackTrace));

                }

                catch (Exception ex)

                {

                    throw new InvalidPluginExecutionException(String.Format("An error occurred in the plug-in: {0} \n {1}.", ex.Message, ex.InnerException);

                    tracingService.Trace(String.Format("Plug-in failed: {0} {1}", ex.Message, ex.InnerException));

                }

Thanks

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Shubh_K 80 on at

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Thanks Gilmeyer for suggestion.

Following the input I captured from exception getting Line7 :-

//Message

Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

//StackTrace

at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)

at System.Security.CodeAccessSecurityEngine.Check(CodeAccessPermission cap, StackCrawlMark& stackMark)

at System.Security.CodeAccessPermission.Demand()

at System.Net.ServicePointManager.set_ServerCertificateValidationCallback(RemoteCertificateValidationCallback value)

at myNamespace.Plugins.GetResponceFromCompany.CreateCompanyRequest.GetCompanyResponse(String EndPoint, String Number, Tracer tracer)

Thanks

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Gilmeyer on at

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Still the same message? That's strange!

Could you please validate the certificate on your service?

What is the output of www.sslshopper.com/ssl-checker.html=[yourservice url] ?

or also,to see if it works, try to ignore this certificate error by adding the following code:

ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };

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Naveen Ganeshe 3,397 User Group Leader on at

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Hi Shubh,

Please go through the below links which states the same issue as yours:

community.dynamics.com/.../465047

social.microsoft.com/.../securityexception-when-calling-custom-webservice-from-crm-plugin

I hope it will be helpful

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Gilmeyer on at

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Also, please have a look in the following sample too eax360.com/.../

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Shubh_K 80 on at

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Hi Gilmeyer,

1. My server is internal so cannot validate the SSL using - www.sslshopper.com/ssl-checker.html

2. Getting the same exception on the shared code line also.

{"Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."}

Thanks

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Shubh_K 80 on at

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Hi,

I went through the Sample code - eax360.com/.../, it is the same which I am already using and doesn't contain have any sample for SSL Endpoint.

Thanks

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