Plug-In Calling WebService with WebClient

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Posted on by Community Member

Hi all,

my solution is composed from a custom plug-in and a custom webservice.

The plugin (Async PostOperation) use WebClient class to call an external webService without authentication. This si the code:

localContext.Trace(json);

try
{
    localContext.Trace("Sleep at {0}", DateTime.Now.ToLongTimeString());
    Thread.Sleep(30000);
    localContext.Trace("Wakeup at {0}", DateTime.Now.ToLongTimeString());
    //var permission = new WebPermission(PermissionState.Unrestricted);
    //permission.Demand();
    localContext.Trace("Send to Wrapper");
    using (var wc = new WebClient())
    {
        wc.Headers.Add(HttpRequestHeader.Accept, "application/json");
        wc.Headers.Add(HttpRequestHeader.ContentType, "application/json");
        wc.UploadStringCompleted += wc_UploadStringCompleted;
        string wrapperResponse = string.Empty;
        try
        {
            var uri = new Uri(HttpUrl);
            localContext.Trace(string.Concat("Send to:", uri.ToString()));
            localContext.Trace(string.Concat("Protocol: ", System.Net.ServicePointManager.SecurityProtocol.ToString()));
            wc.UploadStringAsync(new Uri(HttpUrl), json);
            //wrapperResponse = wc.UploadString(new Uri(HttpUrl), json);
            //_localContext.Trace(string.Concat("Wrapper response: ", wrapperResponse));
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            wc.UploadStringCompleted -= wc_UploadStringCompleted;
        }
    }
}
catch (WebException exception)
{
    string str = string.Empty;
    if (exception.Response != null)
    {
        using (StreamReader reader =
            new StreamReader(exception.Response.GetResponseStream()))
        {
            str = reader.ReadToEnd();
        }
        exception.Response.Close();
    }
    var msg = string.Empty;
    if (exception.Status == WebExceptionStatus.Timeout)
    {
        msg = "The timeout elapsed while attempting to issue the request.";
        localContext.Trace(msg);
        throw new InvalidPluginExecutionException(msg, exception);
    }

    msg = String.Format(CultureInfo.InvariantCulture, "A Web exception occurred while attempting to issue the request\nException message: {0}\nResponse: {1}\n", 
        exception.Message, str);
    localContext.Trace(msg);
    throw new InvalidPluginExecutionException(msg, exception);
}
catch (Exception ex)
{
    localContext.Trace("Generic Exception");
    localContext.Trace(ex.Message);
    throw new InvalidPluginExecutionException("Generic Exception", ex);
}
finally
{
    localContext.Trace("Communication to Wrapper finished");
}

I've already deployed my solution on Dynamics 365 Version 1612 (8.2.3.114) and it's working fine.

Now Dynamics has been updated to new version Version 1710 (9.1.0.646) and plugin no longer work.

It's do not release any error, but the webservice is not called.

This is the trace log of plugin:

Entered PostDistributeCampaignActivity.Execute()
Plugin Invoked from 40.85.85.245
Plugin has started
Check which is the status reason:
The status reason code is 6
Get CampaignActivity
Get ChannelType
Check ChannelType
Create body object
Serialize body object
{"ActivityId":"c41bd0db-72f8-e811-a966-000d3ab496c3","FlowType":3}
Sleep at 9:48:23 AM
Wakeup at 9:48:53 AM
Send to Wrapper
Send to:myserver/.../PUBLISH_DISTRIBUTED
Protocol: Ssl3, Tls, Tls11, Tls12
Communication to Wrapper finished
Exiting PostDistributeCampaignActivity.Execute()

So, in production environment, old version of dynamics still exists, and plugin is still working, but in test environment dynamics has besn updated to the new versione and plugin seems to work, but no call comes to webservice.

Any idea?

Categories:

Customization / Solutions / SDK and API

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RE: Plug-In Calling WebService with WebClient

I've also tried a WebHook; the system job was filed with thi error:

Plugin Trace: [Microsoft.Crm.ServiceBus: Microsoft.Crm.ServiceBus.WebhookPlugin] [af507f2a-2ff9-e811-a969-000d3ab49476: Distribute Campaign Activity WebHook] Error Message: Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=9.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: The webhook call failed during http post. Please check the exception for more details.Detail: <OrganizationServiceFault xmlns:i="www.w3.org/.../XMLSchema-instance" xmlns="schemas.microsoft.com/.../Contracts"> <ActivityId>a04d707f-c496-41b5-b648-beb92aab9c6c</ActivityId> <ErrorCode>-2147155451</ErrorCode> <ErrorDetails xmlns:d2p1="schemas.datacontract.org/.../System.Collections.Generic" /> <Message>The webhook call failed during http post. Please check the exception for more details.</Message> <Timestamp>2018-12-06T14:31:05.2167038Z</Timestamp> <ExceptionRetriable>false</ExceptionRetriable> <ExceptionSource i:nil="true" /> <InnerFault> <ActivityId>a04d707f-c496-41b5-b648-beb92aab9c6c</ActivityId> <ErrorCode>-2147220970</ErrorCode> <ErrorDetails xmlns:d3p1="schemas.datacontract.org/.../System.Collections.Generic" /> <Message>Unhandled Exception: System.Net.WebException: Unable to connect to the remote server at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context) at System.Net.HttpWebRequest.GetRequestStream() at Microsoft.Crm.ServiceBus.WebhookClient.PrepareFullHttpRequest(HttpWebRequest baseHttpRequest, WebhookHttpRequestConfig httpConfig, String jsonPayload) at Microsoft.Crm.ServiceBus.WebhookClient.<SendAsync>d__20.MoveNext() Inner Exception: System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond xxx.xxx.xxx.xxx:80 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception) </Message> <Timestamp>2018-12-06T14:31:05.2167038Z</Timestamp> <ExceptionRetriable>false</ExceptionRetriable> <ExceptionSource i:nil="true" /> <InnerFault i:nil="true" /> <OriginalException i:nil="true" /> <TraceText i:nil="true" /> </InnerFault> <OriginalException i:nil="true" /> <TraceText> [Microsoft.Crm.ServiceBus: Microsoft.Crm.ServiceBus.WebhookPlugin] [af507f2a-2ff9-e811-a969-000d3ab49476: Distribute Campaign Activity WebHook] </TraceText> </OrganizationServiceFault>

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RE: Plug-In Calling WebService with WebClient

I've tried to delete and rebuild Plugin, with the same step and same post-image. Now I've this error:

Plugin Trace:

[CRM.Plugin.HU: CRM.Plugin.HU.PostDistributeCampaignActivity]
[93f62d2f-63f9-e811-a969-000d3ab49476: CRM.Plugin.HU.PostDistributeCampaignActivity: Update of campaignactivity]



Error Message:

Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=9.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
   at System.ComponentModel.Win32Exception.GetObjectData(SerializationInfo info, StreamingContext context)
   at System.Runtime.Serialization.ObjectCloneHelper.GetObjectData(Object serObj, String& typeName, String& assemName, String[]& fieldNames, Object[]& fieldValues)


   at Microsoft.Crm.Sandbox.SandboxAppDomainHelper.Execute(IOrganizationServiceFactory organizationServiceFactory, Dictionary`2 sandboxServices, String pluginTypeName, String pluginConfiguration, String pluginSecureConfig, IPluginExecutionContext requestContext, Boolean enablePluginStackTrace, Boolean chaosFailAppDomain)
   at Microsoft.Crm.Sandbox.SandboxWorker.Execute(SandboxCallInfo callInfo, SandboxPluginExecutionContext requestContext, Guid pluginAssemblyId, Int32 sourceHash, String assemblyName, Guid pluginTypeId, String pluginTypeName, String pluginConfiguration, String pluginSecureConfig, SandboxRequestCounter& workerCounter, Boolean returnTraceInfo)
The action that failed was:
Demand
The type of the first permission that failed was:
System.Security.Permissions.SecurityPermission
The first permission that failed was:
<IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Flags="SerializationFormatter"/>

The demand was for:
<PermissionSet class="System.Security.PermissionSet"
version="1">
<IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Flags="SerializationFormatter"/>
</PermissionSet>

The granted set of the failing assembly was:
<PermissionSet class="System.Security.PermissionSet"
version="1">
<IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Flags="Execution"/>
<IPermission class="System.Net.WebPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1">
<ConnectAccess>
<URI uri="^http[s]?://(?!((localhost[:/])|(\[.*\])|([0-9]+[:/])|(0x[0-9a-f]+[:/])|(((([0-9]+)|(0x[0-9A-F]+))\.){3}(([0-9]+)|(0x[0-9A-F]+))[:/]))).+"/>
</ConnectAccess>
</IPermission>
</PermissionSet>

The assembly or AppDomain that failed was:
mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #39CB4260Detail: 
<OrganizationServiceFault xmlns:i="www.w3.org/.../XMLSchema-instance" xmlns="schemas.microsoft.com/.../Contracts">
  <ActivityId>e9205edf-e66b-45f7-b98b-34acdcbd8f59</ActivityId>
  <ErrorCode>-2147220970</ErrorCode>
  <ErrorDetails xmlns:d2p1="schemas.datacontract.org/.../System.Collections.Generic" />
  <Message>System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
   at System.ComponentModel.Win32Exception.GetObjectData(SerializationInfo info, StreamingContext context)
   at System.Runtime.Serialization.ObjectCloneHelper.GetObjectData(Object serObj, String&amp; typeName, String&amp; assemName, String[]&amp; fieldNames, Object[]&amp; fieldValues)


   at Microsoft.Crm.Sandbox.SandboxAppDomainHelper.Execute(IOrganizationServiceFactory organizationServiceFactory, Dictionary`2 sandboxServices, String pluginTypeName, String pluginConfiguration, String pluginSecureConfig, IPluginExecutionContext requestContext, Boolean enablePluginStackTrace, Boolean chaosFailAppDomain)
   at Microsoft.Crm.Sandbox.SandboxWorker.Execute(SandboxCallInfo callInfo, SandboxPluginExecutionContext requestContext, Guid pluginAssemblyId, Int32 sourceHash, String assemblyName, Guid pluginTypeId, String pluginTypeName, String pluginConfiguration, String pluginSecureConfig, SandboxRequestCounter&amp; workerCounter, Boolean returnTraceInfo)
The action that failed was:
Demand
The type of the first permission that failed was:
System.Security.Permissions.SecurityPermission
The first permission that failed was:
&lt;IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Flags="SerializationFormatter"/&gt;

The demand was for:
&lt;PermissionSet class="System.Security.PermissionSet"
version="1"&gt;
&lt;IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Flags="SerializationFormatter"/&gt;
&lt;/PermissionSet&gt;

The granted set of the failing assembly was:
&lt;PermissionSet class="System.Security.PermissionSet"
version="1"&gt;
&lt;IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Flags="Execution"/&gt;
&lt;IPermission class="System.Net.WebPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"&gt;
&lt;ConnectAccess&gt;
&lt;URI uri="^http[s]?://(?!((localhost[:/])|(\[.*\])|([0-9]+[:/])|(0x[0-9a-f]+[:/])|(((([0-9]+)|(0x[0-9A-F]+))\.){3}(([0-9]+)|(0x[0-9A-F]+))[:/]))).+"/&gt;
&lt;/ConnectAccess&gt;
&lt;/IPermission&gt;
&lt;/PermissionSet&gt;

The assembly or AppDomain that failed was:
mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #39CB4260</Message>
  <Timestamp>2018-12-06T14:31:37.7538529Z</Timestamp>
  <ExceptionRetriable>false</ExceptionRetriable>
  <ExceptionSource>PluginExecution</ExceptionSource>
  <InnerFault i:nil="true" />
  <OriginalException>System.Security.SecurityException
   at System.ComponentModel.Win32Exception.GetObjectData(SerializationInfo info, StreamingContext context)
   at System.Runtime.Serialization.ObjectCloneHelper.GetObjectData(Object serObj, String&amp; typeName, String&amp; assemName, String[]&amp; fieldNames, Object[]&amp; fieldValues)


   at Microsoft.Crm.Sandbox.SandboxAppDomainHelper.Execute(IOrganizationServiceFactory organizationServiceFactory, Dictionary`2 sandboxServices, String pluginTypeName, String pluginConfiguration, String pluginSecureConfig, IPluginExecutionContext requestContext, Boolean enablePluginStackTrace, Boolean chaosFailAppDomain)
   at Microsoft.Crm.Sandbox.SandboxWorker.Execute(SandboxCallInfo callInfo, SandboxPluginExecutionContext requestContext, Guid pluginAssemblyId, Int32 sourceHash, String assemblyName, Guid pluginTypeId, String pluginTypeName, String pluginConfiguration, String pluginSecureConfig, SandboxRequestCounter&amp; workerCounter, Boolean returnTraceInfo)</OriginalException>
  <TraceText>
[CRM.Plugin.HU: CRM.Plugin.HU.PostDistributeCampaignActivity]
[93f62d2f-63f9-e811-a969-000d3ab49476: CRM.Plugin.HU.PostDistributeCampaignActivity: Update of campaignactivity]

</TraceText>
</OrganizationServiceFault>

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RE: Plug-In Calling WebService with WebClient

Hi @Andrew Butenko, I use standard port 80, and the service has not authentication

Hi @LeoAlt, the communication starts from server and goes to client, your note for communication limitation concerns the opposit.

Anyway, I will follow the advice for WebHooks, it's seems good.

Thanks for all
LeoAlt 16,331 Moderator on at

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RE: Plug-In Calling WebService with WebClient

Hi Glucolo,

According to "What's new for developers in D365 v9" ,we know that Microsoft has limited the API requeset.

You could also try WebHooks suggested by Microsoft to interact with external webService.

Hope it helps.

Best Regards

Leo
a33ik 84,331 Most Valuable Professional on at

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RE: Plug-In Calling WebService with WebClient

Hello,

Do you use 80/443 port or some custom?