/// <summary>
/// Loads the device's credentials from the file system
/// </summary>
/// <param name="issuerUri">URL for the current token issuer</param>
/// <returns>Device Credentials (if set) or null</returns>
/// <remarks>
/// The issuerUri can be retrieved from the IServiceConfiguration interface's CurrentIssuer property.
/// </remarks>
public static ClientCredentials LoadDeviceCredentials(Uri issuerUri)
{
//If the credentials should not be persisted to a file, then they won't be present on the disk.
if (!PersistToFile)
{
return(null);
}
EnvironmentConfiguration environment = DiscoverEnvironmentInternal(issuerUri);
LiveDevice device = ReadExistingDevice(environment);
if (null == device || null == device.User)
{
return(null);
}
return(device.User.ToClientCredentials());
}
private static ClientCredentials RegisterDevice(Guid applicationId, Uri issuerUri, LiveDevice device)
{
EnvironmentConfiguration environment = DiscoverEnvironmentInternal(issuerUri);
DeviceRegistrationRequest request = new DeviceRegistrationRequest(applicationId, device);
string url = string.Format(CultureInfo.InvariantCulture, LiveIdConstants.RegistrationEndpointUriFormat,
environment.HostName);
DeviceRegistrationResponse response = ExecuteRegistrationRequest(url, request);
if (!response.IsSuccess)
{
bool throwException = true;
if (DeviceRegistrationErrorCode.DeviceAlreadyExists == response.Error.RegistrationErrorCode)
{
if (!PersistToFile)
{
//If the file is not persisted, the registration will always occur (since the credentials are not
//persisted to the disk. However, the credentials may already exist. To avoid an exception being continually
//processed by the calling user, DeviceAlreadyExists will be ignored if the credentials are not persisted to the disk.
return(device.User.ToClientCredentials());
}
else if (PersistIfDeviceAlreadyExists)
{
// This flag indicates that the
throwException = false;
}
}
if (throwException)
{
throw new DeviceRegistrationFailedException(response.Error.RegistrationErrorCode, response.ErrorSubCode);
}
}
if (PersistToFile || PersistIfDeviceAlreadyExists)
{
WriteDevice(environment, device);
}
return(device.User.ToClientCredentials());
}