Synchronize edit to secure services

RobertMEIER

I have code that works with unsecure services, but when I add the secure stuff and try to sync to a secure service I am getting a NullReferenceException error.

I think the only part I have to add for security is setting the TokenCredential property on the MobileServiceConnection object, is that right??

Code:
MobileServiceConnection connection = new MobileServiceConnection();
            connection.TokenCredential = new ESRI.ArcGIS.Mobile.CatalogServices.TokenCredential("UserName", "Password");
            connection.Url = frmMap.staticMapForm._dataURL;

            tbxSyncMsg.Text = tbxSyncMsg.Text + "Synchronize Starting...";

            int totalBytesSent = 0;
            foreach (Layer l in frmMap.staticMobileCache.Layers)
            {
                FeatureLayer fl = l as FeatureLayer;
                //if ((fl != null))
                //{

                FeatureLayerSyncAgent agent = new FeatureLayerSyncAgent(fl);

                agent.MapDocumentConnection = connection;
                agent.SynchronizationDirection = SyncDirection.UploadOnly;
                SyncResults sr = agent.Synchronize();
                string msg = string.Empty;
                if (sr.Exception == null)
                {
                    msg = tbxSyncMsg.Text + String.Format("{0} Synchronizing{1} bytes sent", fl.Name, sr.DataSizeSent);

                    //tbxSyncMsg.Text = String.IsNullOrEmpty(tbxSyncMsg.Text) ? msg : tbxSyncMsg.Text + "/r/n" + msg;
                    tbxSyncMsg.Text = msg;
                    tbxSyncMsg.SelectionStart = tbxSyncMsg.Text.Length;
                    tbxSyncMsg.ScrollToCaret();
                    Application.DoEvents();
                    totalBytesSent += sr.DataSizeSent;
                    //crPosted = true;
                }
                else
                {
                    msg = tbxSyncMsg.Text + String.Format("{0} Failed to SynchronizeError: {1}", fl.Name, sr.Exception.Message);
                    tbxSyncMsg.Text = msg;
                    tbxSyncMsg.SelectionStart = tbxSyncMsg.Text.Length;
                    tbxSyncMsg.ScrollToCaret();
                    //tbxSyncMsg.Text = String.IsNullOrEmpty(tbxSyncMsg.Text) ? msg : tbxSyncMsg.Text + "/r/n" + msg;
                    Application.DoEvents();
                }
                //}
            }

Also, when this runs I can see in the Immediate window the following:

A first chance exception of type 'System.UriFormatException' occurred in System.dll
A first chance exception of type 'System.Net.Sockets.SocketException' occurred in System.dll
A first chance exception of type 'System.Net.Sockets.SocketException' occurred in System.dll
A first chance exception of type 'System.Net.WebException' occurred in System.dll
A first chance exception of type 'System.NullReferenceException' occurred in ESRI.ArcGIS.Mobile.dll

Any help is appreciated!

-bert

CiprianLazar

The simplest way to accept any untrusted certificate is to create a class like this

public class TrustAllCertificatePolicy : System.Net.ICertificatePolicy         {             public TrustAllCertificatePolicy()             {             }              public bool CheckValidationResult(ServicePoint sp,                 System.Security.Cryptography.X509Certificates.X509Certificate cert,                  WebRequest req,                  int problem)             {                 return true;             }         }

and before accessing the MobileServiceConnection you should issue this

System.Net.ServicePointManager.CertificatePolicy = new TrustAllCertificatePolicy();

Obviously, this is not the safest way to go, because this will accept ANY certificate  and this could be a problem.

You could pass the responsability to the user and ask him if he wishes to continue using this class:

public class QueryTrustCertificatePolicy : System.Net.ICertificatePolicy         {             private const uint CERT_E_UNTRUSTEDROOT = 0x800B0109;              public QueryTrustCertificatePolicy()             {             }              public bool CheckValidationResult(ServicePoint sp,                 System.Security.Cryptography.X509Certificates.X509Certificate cert, WebRequest req, int problem)             {                 bool returnValue = problem == 0;                  if ((uint)problem == CERT_E_UNTRUSTEDROOT)                 {                     if (System.Windows.Forms.MessageBox.Show("The security cetificate is not from a trusted certification authority (" + cert.GetIssuerName() + "). Do you want to proceed?",                         "Security Alert",                         System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question,                         System.Windows.Forms.MessageBoxDefaultButton.Button2) == System.Windows.Forms.DialogResult.Yes)                         returnValue = true;                 }                 return returnValue;             }         }

and issue this command before accessing the MobileServiceConnection

System.Net.ServicePointManager.CertificatePolicy = new QueryTrustCertificatePolicy();

Hope this helps