private async Task <ProcessConsentResult> ProcessConsent(DeviceAuthorizationInputModel model)
{
var result = new ProcessConsentResult();
var request = await _interaction.GetAuthorizationContextAsync(model.UserCode);
if (request == null)
{
return(result);
}
ConsentResponse grantedConsent = null;
// user clicked 'no' - send back the standard 'access_denied' response
if (model.Button == "no")
{
grantedConsent = ConsentResponse.Denied;
// emit event
await _events.RaiseAsync(new ConsentDeniedEvent(User.GetSubjectId(), request.ClientId, request.ScopesRequested));
}
// user clicked 'yes' - validate the data
else if (model.Button == "yes")
{
// if the user consented to some scope, build the response model
if (model.ScopesConsented != null && model.ScopesConsented.Any())
{
var scopes = model.ScopesConsented;
if (ConsentOptions.EnableOfflineAccess == false)
{
scopes = scopes.Where(x => x != IdentityServer4.IdentityServerConstants.StandardScopes.OfflineAccess);
}
grantedConsent = new ConsentResponse
{
RememberConsent = model.RememberConsent,
ScopesConsented = scopes.ToArray()
};
// emit event
await _events.RaiseAsync(new ConsentGrantedEvent(User.GetSubjectId(), request.ClientId, request.ScopesRequested, grantedConsent.ScopesConsented, grantedConsent.RememberConsent));
}
else
{
result.ValidationError = ConsentOptions.MustChooseOneErrorMessage;
}
}
else
{
result.ValidationError = ConsentOptions.InvalidSelectionErrorMessage;
}
if (grantedConsent != null)
{
// communicate outcome of consent back to identityserver
await _interaction.HandleRequestAsync(model.UserCode, grantedConsent);
// indicate that's it ok to redirect back to authorization endpoint
result.RedirectUri = model.ReturnUrl;
result.ClientId = request.ClientId;
}
else
{
// we need to redisplay the consent UI
result.ViewModel = await BuildViewModelAsync(model.UserCode, model);
}
return(result);
}
private async Task <DeviceAuthorizationViewModel> BuildViewModelAsync(string userCode, DeviceAuthorizationInputModel model = null)
{
var request = await _interaction.GetAuthorizationContextAsync(userCode);
if (request != null)
{
var client = await _clientStore.FindEnabledClientByIdAsync(request.ClientId);
if (client != null)
{
var resources = await _resourceStore.FindEnabledResourcesByScopeAsync(request.ScopesRequested);
if (resources != null && (resources.IdentityResources.Any() || resources.ApiResources.Any()))
{
return(CreateConsentViewModel(userCode, model, client, resources));
}
else
{
_logger.LogError("No scopes matching: {0}", request.ScopesRequested.Aggregate((x, y) => x + ", " + y));
}
}
else
{
_logger.LogError("Invalid client id: {0}", request.ClientId);
}
}
return(null);
}