private static void CreateAlexaCardFromAttachment(Activity activity, AlexaResponseBody response)
{
var attachment = activity.Attachments != null && activity.Attachments.Any()
? activity.Attachments[0]
: null;
if (attachment != null)
{
switch (attachment.ContentType)
{
case HeroCard.ContentType:
case ThumbnailCard.ContentType:
if (attachment.Content is HeroCard)
{
response.Response.Card = CreateAlexaCardFromHeroCard(attachment);
}
break;
case SigninCard.ContentType:
response.Response.Card = new AlexaCard()
{
Type = AlexaCardType.LinkAccount
};
break;
}
}
}
private void AddCardToResponse(ITurnContext context, AlexaResponseBody response, Activity activity)
{
if (context.TurnState.ContainsKey("AlexaCard") && context.TurnState["AlexaCard"] is AlexaCard)
{
response.Response.Card = context.TurnState.Get <AlexaCard>("AlexaCard");
}
else if (Options.TryConvertFirstActivityAttachmentToAlexaCard)
{
CreateAlexaCardFromAttachment(activity, response);
}
}
public async Task <AlexaResponseBody> ProcessActivity(AlexaRequestBody alexaRequest, AlexaOptions alexaOptions, BotCallbackHandler callback)
{
TurnContext context = null;
try
{
Options = alexaOptions;
var activity = RequestToActivity(alexaRequest);
BotAssert.ActivityNotNull(activity);
context = new TurnContext(this, activity);
if (alexaRequest.Session.Attributes != null && alexaRequest.Session.Attributes.Any())
{
context.TurnState.Add("AlexaSessionAttributes", alexaRequest.Session.Attributes);
}
else
{
context.TurnState.Add("AlexaSessionAttributes", new Dictionary <string, string>());
}
context.TurnState.Add("AlexaResponseDirectives", new List <IAlexaDirective>());
Responses = new Dictionary <string, List <Activity> >();
await base.RunPipelineAsync(context, callback, default(CancellationToken)).ConfigureAwait(false);
var key = $"{activity.Conversation.Id}:{activity.Id}";
try
{
AlexaResponseBody response = null;
var activities = Responses.ContainsKey(key) ? Responses[key] : new List <Activity>();
response = CreateResponseFromLastActivity(activities, context);
response.SessionAttributes = context.AlexaSessionAttributes();
return(response);
}
finally
{
if (Responses.ContainsKey(key))
{
Responses.Remove(key);
}
}
}
catch (Exception ex)
{
await alexaOptions.OnTurnError(context, ex);
throw;
}
}
private void AddCardToResponse(ITurnContext context, AlexaResponseBody response, Activity activity)
{
if (activity.Attachments != null &&
activity.Attachments.Any(a => a.ContentType == SigninCard.ContentType))
{
response.Response.Card = new AlexaCard()
{
Type = AlexaCardType.LinkAccount
};
}
else
{
if (context.TurnState.ContainsKey("AlexaCard") && context.TurnState["AlexaCard"] is AlexaCard)
{
response.Response.Card = context.TurnState.Get <AlexaCard>("AlexaCard");
}
else if (ConvertBotBuilderCardsToAlexaCards)
{
CreateAlexaCardFromAttachment(activity, response);
}
}
}
private static void AddDirectivesToResponse(ITurnContext context, AlexaResponseBody response)
{
response.Response.Directives = context.AlexaResponseDirectives().Select(a => a).ToArray();
}
private AlexaResponseBody CreateResponseFromLastActivity(IEnumerable <Activity> activities, ITurnContext context)
{
var response = new AlexaResponseBody()
{
Version = "1.0",
Response = new AlexaResponse()
{
ShouldEndSession = context.GetAlexaRequestBody().Request.Type ==
AlexaRequestTypes.SessionEndedRequest ||
ShouldEndSessionByDefault
}
};
if (context.GetAlexaRequestBody().Request.Type == AlexaRequestTypes.SessionEndedRequest &&
(activities == null || !activities.Any()))
{
response.Response.OutputSpeech = new AlexaOutputSpeech()
{
Type = AlexaOutputSpeechType.PlainText,
Text = string.Empty
};
return(response);
}
var activity = activities.First();
// https://github.com/alexa/alexa-skills-kit-sdk-for-nodejs/issues/25
// https://stackoverflow.com/questions/53019696/special-characters-not-supported-by-aws-polly/53020501#53020501
// Fixed the above issues
if (!SecurityElement.IsValidText(activity.Text))
{
activity.Text = SecurityElement.Escape(activity.Text);
}
if (activity.Type == ActivityTypes.EndOfConversation)
{
response.Response.ShouldEndSession = true;
}
if (!string.IsNullOrEmpty(activity.Speak))
{
response.Response.OutputSpeech = new AlexaOutputSpeech()
{
Type = AlexaOutputSpeechType.SSML,
Ssml = activity.Speak.Contains("<speak>")
? activity.Speak
: $"<speak>{activity.Speak}</speak>",
};
if (!string.IsNullOrEmpty(activity.Text))
{
response.Response.OutputSpeech.Text = $"{activity.Text} ";
}
}
else if (!string.IsNullOrEmpty(activity.Text))
{
if (response.Response.OutputSpeech == null)
{
response.Response.OutputSpeech = new AlexaOutputSpeech()
{
Type = AlexaOutputSpeechType.PlainText,
Text = activity.Text
};
}
}
if (context.TurnState.ContainsKey("AlexaReprompt"))
{
var repromptSpeech = context.TurnState.Get <string>("AlexaReprompt");
response.Response.Reprompt = new Reprompt()
{
OutputSpeech = new AlexaOutputSpeech()
{
Type = AlexaOutputSpeechType.SSML,
Ssml = repromptSpeech.Contains("<speak>")
? repromptSpeech
: $"<speak>{repromptSpeech}</speak>"
}
};
}
AddDirectivesToResponse(context, response);
AddCardToResponse(context, response, activity);
switch (activity.InputHint)
{
case InputHints.IgnoringInput:
response.Response.ShouldEndSession = true;
break;
case InputHints.ExpectingInput:
response.Response.ShouldEndSession = false;
break;
case InputHints.AcceptingInput:
default:
break;
}
return(response);
}
private AlexaResponseBody CreateResponseFromLastActivity(IEnumerable <Activity> activities, ITurnContext context)
{
var response = new AlexaResponseBody()
{
Version = "1.0",
Response = new AlexaResponse()
{
ShouldEndSession = context.GetAlexaRequestBody().Request.Type ==
AlexaRequestTypes.SessionEndedRequest ||
ShouldEndSessionByDefault
}
};
if (context.GetAlexaRequestBody().Request.Type == AlexaRequestTypes.SessionEndedRequest ||
activities == null || !activities.Any())
{
response.Response.OutputSpeech = new AlexaOutputSpeech()
{
Type = AlexaOutputSpeechType.PlainText,
Text = string.Empty
};
return(response);
}
var activity = activities.First();
if (activity.Type == ActivityTypes.EndOfConversation)
{
response.Response.ShouldEndSession = true;
}
if (!string.IsNullOrEmpty(activity.Speak))
{
response.Response.OutputSpeech = new AlexaOutputSpeech()
{
Type = AlexaOutputSpeechType.SSML,
Ssml = activity.Speak.Contains("<speak>")
? activity.Speak
: $"<speak>{activity.Speak}</speak>",
};
if (!string.IsNullOrEmpty(activity.Text))
{
response.Response.OutputSpeech.Text = $"{activity.Text} ";
}
}
else if (!string.IsNullOrEmpty(activity.Text))
{
if (response.Response.OutputSpeech == null)
{
response.Response.OutputSpeech = new AlexaOutputSpeech()
{
Type = AlexaOutputSpeechType.PlainText,
Text = activity.Text
};
}
}
if (context.TurnState.ContainsKey("AlexaReprompt"))
{
var repromptSpeech = context.TurnState.Get <string>("AlexaReprompt");
response.Response.Reprompt = new Reprompt()
{
OutputSpeech = new AlexaOutputSpeech()
{
Type = AlexaOutputSpeechType.SSML,
Ssml = repromptSpeech.Contains("<speak>")
? repromptSpeech
: $"<speak>{repromptSpeech}</speak>"
}
};
}
AddDirectivesToResponse(context, response);
AddCardToResponse(context, response, activity);
switch (activity.InputHint)
{
case InputHints.IgnoringInput:
response.Response.ShouldEndSession = true;
break;
case InputHints.ExpectingInput:
response.Response.ShouldEndSession = false;
break;
case InputHints.AcceptingInput:
default:
break;
}
return(response);
}
