private Task<Credential> CreateCertificateCredentialAsync(CredentialRequestInfo credentialRequestInfo)
{
var tcs = new TaskCompletionSource<Credential>();
var store = new X509Store(StoreName.My, StoreLocation.CurrentUser);
X509Certificate2Collection certificates;
try
{
const string clientAuthOid = "1.3.6.1.5.5.7.3.2"; // Client Authentication OID
store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
// Find Client Authentication certificate
certificates = store.Certificates.Find(X509FindType.FindByApplicationPolicy, clientAuthOid, true);
}
catch (Exception)
{
certificates = null;
}
finally
{
store.Close();
}
string url = credentialRequestInfo.ServiceUri;
ServerInfo serverInfo = IdentityManager.Current.FindServerInfo(url);
if (certificates != null && certificates.Count >= 1)
{
// Let the user select/validate the certificate
string resourceName = GetResourceName(url);
string server = serverInfo == null ? Regex.Match(url, "http.?//[^/]*").ToString() : serverInfo.ServerUri;
string message = resourceName == null
? string.Format("certificate required to access to {0}", server)
: string.Format("certificate required to access {0} on {1}", resourceName, server);
certificates = X509Certificate2UI.SelectFromCollection(certificates, null, message, X509SelectionFlag.SingleSelection);
}
if (certificates != null && certificates.Count > 0)
{
var credential = new CertificateCredential(certificates[0]) { ServiceUri = serverInfo == null ? url : serverInfo.ServerUri };
if (AllowSaveCredentials)
CredentialManager.AddCredential(credential);
tcs.TrySetResult(credential);
}
else
{
// Note : Error type is not that important since the error returned to the user is the initial HTTP error (Authorization Error)
tcs.TrySetException(new System.Security.Authentication.AuthenticationException());
}
return tcs.Task;
}
/// <summary>
/// Retrieves all ArcGISRuntime credentials stored in the Credential Locker.
/// </summary>
/// <returns></returns>
internal IEnumerable <Credential> RetrieveAllSavedCredentials()
{
return(CredentialManager.RetrieveAll());
}
/// <summary>
/// Clears all ArcGISRuntime credentials from the Credential Locker.
/// </summary>
public void ClearCredentialsCache()
{
CredentialManager.RemoveAllCredentials();
}