/// <summary>
/// Called when a prompt dialog is the active dialog and the user replied with a new activity.
/// </summary>
/// <param name="dc">The dialog context for the current turn of conversation.</param>
/// <param name="cancellationToken">A cancellation token that can be used by other objects
/// or threads to receive notice of cancellation.</param>
/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
/// <remarks>If the task is successful, the result indicates whether the dialog is still
/// active after the turn has been processed by the dialog.
/// <para>The prompt generally continues to receive the user's replies until it accepts the
/// user's reply as valid input for the prompt.</para></remarks>
public override async Task <DialogTurnResult> ContinueDialogAsync(DialogContext dc, CancellationToken cancellationToken = default(CancellationToken))
{
if (dc == null)
{
throw new ArgumentNullException(nameof(dc));
}
// Perform base recognition
var instance = dc.ActiveDialog;
var state = (IDictionary <string, object>)instance.State[PersistedState];
var options = (PromptOptions)instance.State[PersistedOptions];
var recognized = await OnRecognizeAsync(dc.Context, state, options, cancellationToken).ConfigureAwait(false);
// Increment attempt count
// Convert.ToInt32 For issue https://github.com/Microsoft/botbuilder-dotnet/issues/1859
state[Prompt <int> .AttemptCountKey] = Convert.ToInt32(state[Prompt <int> .AttemptCountKey]) + 1;
// Validate the return value
var isValid = false;
if (_validator != null)
{
var promptContext = new PromptValidatorContext <Activity>(dc.Context, recognized, state, options);
isValid = await _validator(promptContext, cancellationToken).ConfigureAwait(false);
}
else if (recognized.Succeeded)
{
isValid = true;
}
// Return recognized value or re-prompt
if (isValid)
{
return(await dc.EndDialogAsync(recognized.Value, cancellationToken).ConfigureAwait(false));
}
else
{
await OnPromptAsync(dc.Context, state, options, true, cancellationToken).ConfigureAwait(false);
}
return(EndOfTurn);
}
private static async Task <bool> CheckValidatorAsync(DialogContext dc, PromptValidator <TokenResponse> validator, TokenResponse tokenResponse, CancellationToken cancellationToken)
{
const string AttemptCount = "AttemptCount";
if (validator != null)
{
// Increment attempt count.
var promptState = dc.ActiveDialog.State[OAuthHelper.PersistedState].CastTo <IDictionary <string, object> >();
promptState[AttemptCount] = Convert.ToInt32(promptState[AttemptCount], CultureInfo.InvariantCulture) + 1;
// Call the custom validator.
var recognized = new PromptRecognizerResult <TokenResponse> {
Succeeded = tokenResponse != null, Value = tokenResponse
};
var promptOptions = dc.ActiveDialog.State[OAuthHelper.PersistedOptions].CastTo <PromptOptions>();
var promptContext = new PromptValidatorContext <TokenResponse>(dc.Context, recognized, promptState, promptOptions);
return(await validator(promptContext, cancellationToken).ConfigureAwait(false));
}
else
{
return(tokenResponse != null);
}
}
/// <summary>
/// Called when a prompt dialog is the active dialog and the user replied with a new activity.
/// </summary>
/// <param name="dc">The dialog context for the current turn of conversation.</param>
/// <param name="cancellationToken">A cancellation token that can be used by other objects
/// or threads to receive notice of cancellation.</param>
/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
/// <remarks>If the task is successful, the result indicates whether the dialog is still
/// active after the turn has been processed by the dialog.
/// <para>The prompt generally continues to receive the user's replies until it accepts the
/// user's reply as valid input for the prompt.</para></remarks>
public override async Task <DialogTurnResult> ContinueDialogAsync(DialogContext dc, CancellationToken cancellationToken = default)
{
if (dc == null)
{
throw new ArgumentNullException(nameof(dc));
}
// Check for timeout
var state = dc.ActiveDialog.State;
var expires = (DateTime)state[PersistedExpires];
var isMessage = dc.Context.Activity.Type == ActivityTypes.Message;
// If the incoming Activity is a message, or an Activity Type normally handled by OAuthPrompt,
// check to see if this OAuthPrompt Expiration has elapsed, and end the dialog if so.
var isTimeoutActivityType = isMessage ||
IsTokenResponseEvent(dc.Context) ||
IsTeamsVerificationInvoke(dc.Context) ||
IsTokenExchangeRequestInvoke(dc.Context);
var hasTimedOut = isTimeoutActivityType && DateTime.Compare(DateTime.UtcNow, expires) > 0;
if (hasTimedOut)
{
// if the token fetch request times out, complete the prompt with no result.
return(await dc.EndDialogAsync(cancellationToken : cancellationToken).ConfigureAwait(false));
}
// Recognize token
var recognized = await RecognizeTokenAsync(dc, cancellationToken).ConfigureAwait(false);
var promptState = state[PersistedState].CastTo <IDictionary <string, object> >();
var promptOptions = state[PersistedOptions].CastTo <PromptOptions>();
// Increment attempt count
// Convert.ToInt32 For issue https://github.com/Microsoft/botbuilder-dotnet/issues/1859
promptState[Prompt <int> .AttemptCountKey] = Convert.ToInt32(promptState[Prompt <int> .AttemptCountKey], CultureInfo.InvariantCulture) + 1;
// Validate the return value
var isValid = false;
if (_validator != null)
{
var promptContext = new PromptValidatorContext <TokenResponse>(dc.Context, recognized, promptState, promptOptions);
isValid = await _validator(promptContext, cancellationToken).ConfigureAwait(false);
}
else if (recognized.Succeeded)
{
isValid = true;
}
// Return recognized value or re-prompt
if (isValid)
{
return(await dc.EndDialogAsync(recognized.Value, cancellationToken).ConfigureAwait(false));
}
else if (isMessage && _settings.EndOnInvalidMessage)
{
// If EndOnInvalidMessage is set, complete the prompt with no result.
return(await dc.EndDialogAsync(cancellationToken : cancellationToken).ConfigureAwait(false));
}
if (!dc.Context.Responded && isMessage && promptOptions?.RetryPrompt != null)
{
await dc.Context.SendActivityAsync(promptOptions.RetryPrompt, cancellationToken).ConfigureAwait(false);
}
return(EndOfTurn);
}
