/// <summary>
///
/// </summary>
/// <param name="requestEnvelope"></param>
/// <returns></returns>
private string DoProcessRequest(SpeechletRequestEnvelope requestEnvelope) {
Session session = requestEnvelope.Session;
SpeechletResponse response = null;
// verify timestamp is within tolerance
var diff = DateTime.UtcNow - requestEnvelope.Request.Timestamp;
Debug.WriteLine("Request was timestamped {0:0.00} seconds ago.", diff.TotalSeconds);
if (Math.Abs((decimal)diff.TotalSeconds) > Sdk.TIMESTAMP_TOLERANCE_SEC) {
return String.Empty;
}
// process launch request
if (requestEnvelope.Request is LaunchRequest) {
var request = requestEnvelope.Request as LaunchRequest;
if (requestEnvelope.Session.IsNew) {
OnSessionStarted(
new SessionStartedRequest(request.RequestId, request.Timestamp), session);
}
response = OnLaunch(request, session);
}
// process intent request
else if (requestEnvelope.Request is IntentRequest) {
var request = requestEnvelope.Request as IntentRequest;
// Do session management prior to calling OnSessionStarted and OnIntentAsync
// to allow dev to change session values if behavior is not desired
DoSessionManagement(request, session);
if (requestEnvelope.Session.IsNew) {
OnSessionStarted(
new SessionStartedRequest(request.RequestId, request.Timestamp), session);
}
response = OnIntent(request, session);
}
// process session ended request
else if (requestEnvelope.Request is SessionEndedRequest) {
var request = requestEnvelope.Request as SessionEndedRequest;
OnSessionEnded(request, session);
}
var responseEnvelope = new SpeechletResponseEnvelope {
Version = requestEnvelope.Version,
Response = response,
SessionAttributes = requestEnvelope.Session.Attributes
};
return responseEnvelope.ToJson();
}
/// <summary>
///
/// </summary>
/// <param name="requestEnvelope"></param>
/// <returns></returns>
private string DoProcessRequest(SpeechletRequestEnvelope requestEnvelope) {
Session session = requestEnvelope.Session;
SpeechletResponse response = null;
// process launch request
if (requestEnvelope.Request is LaunchRequest) {
var request = requestEnvelope.Request as LaunchRequest;
if (requestEnvelope.Session.IsNew) {
OnSessionStarted(
new SessionStartedRequest(request.RequestId, request.Timestamp), session);
}
response = OnLaunch(request, session);
}
// process intent request
else if (requestEnvelope.Request is IntentRequest) {
var request = requestEnvelope.Request as IntentRequest;
// Do session management prior to calling OnSessionStarted and OnIntentAsync
// to allow dev to change session values if behavior is not desired
DoSessionManagement(request, session);
if (requestEnvelope.Session.IsNew) {
OnSessionStarted(
new SessionStartedRequest(request.RequestId, request.Timestamp), session);
}
response = OnIntent(request, session);
}
// process session ended request
else if (requestEnvelope.Request is SessionEndedRequest) {
var request = requestEnvelope.Request as SessionEndedRequest;
OnSessionEnded(request, session);
}
var responseEnvelope = new SpeechletResponseEnvelope {
Version = requestEnvelope.Version,
Response = response,
SessionAttributes = requestEnvelope.Session.Attributes
};
return responseEnvelope.ToJson();
}
/// <summary>
/// Opportunity to set policy for handling requests with invalid signatures and/or timestamps
/// </summary>
/// <returns>true if request processing should continue, otherwise false</returns>
public virtual bool OnRequestValidation(
SpeechletRequestValidationResult result, DateTime referenceTimeUtc, SpeechletRequestEnvelope requestEnvelope) {
return result == SpeechletRequestValidationResult.OK;
}
/// <summary>
/// Verifies request timestamp
/// </summary>
public static bool VerifyRequestTimestamp(SpeechletRequestEnvelope requestEnvelope, DateTime referenceTimeUtc) {
// verify timestamp is within tolerance
var diff = referenceTimeUtc - requestEnvelope.Request.Timestamp;
Debug.WriteLine("Request was timestamped {0:0.00} seconds ago.", diff.TotalSeconds);
return (Math.Abs((decimal)diff.TotalSeconds) <= Sdk.TIMESTAMP_TOLERANCE_SEC);
}