private async Task <bool> SendSMS(string fromNumber, string toNumber, string message, ILambdaLogger logger)
{
bool result;
try
{
dynamic smsResource = await _twilioApi.MessagingApi.SendSMS(_twilioApi.AccountSid,
new System.Collections.Generic.Dictionary <string, string>
{
{ "From", fromNumber },
{ "To", toNumber },
{ "Body", message.EndsWith("phone=")
? message + IVRWorkflow.SwitchCallerId(toNumber)
: message }
});
string status = smsResource.status;
result = status.Equals("queued");
if (result)
{
logger.LogLine("SMS message queued for sending to " + toNumber);
logger.LogLine("Twilio SMS message resource: " + JsonConvert.SerializeObject(smsResource));
}
else
{
logger.LogLine("SMS message not queued");
}
}
catch (ApiException ex)
{
logger.LogLine("Cannot send SMS: " + ex.Message);
result = false;
}
return(result);
}
public override async Task <JObject> Process(JObject connectEvent, ILambdaContext context)
{
var fromNumber = Environment.GetEnvironmentVariable("TWILIO_PHONENUMBER");
var customerNumber =
(string)connectEvent.SelectToken("Details.ContactData.CustomerEndpoint.Address");
var customerNumberType = (string)connectEvent.SelectToken("Details.ContactData.CustomerEndpoint.Type");
var systemNumber = string.IsNullOrWhiteSpace(fromNumber) ?
(string)connectEvent.SelectToken("Details.ContactData.SystemEndpoint.Address") : fromNumber;
var message = (string)connectEvent.SelectToken("Details.Parameters.SmsMessage");
var systemNumberType = (string)connectEvent.SelectToken("Details.ContactData.SystemEndpoint.Type");
bool result;
if (customerNumberType.Equals("TELEPHONE_NUMBER") &&
(!string.IsNullOrWhiteSpace(fromNumber) || systemNumberType.Equals("TELEPHONE_NUMBER")))
{
var requestName = (string)connectEvent.SelectToken("Details.Parameters.RequestName") ?? "(null)";
if (requestName.Equals("CreateSessionWithSms"))
{
var phoneNumber = $"phone={IVRWorkflow.SwitchCallerId(customerNumber)}";
try
{
var clientUrl = new UriBuilder(Environment.GetEnvironmentVariable("CHOICEVIEW_CLIENTURL") ??
"https://choiceview.com/secure.html")
{
Query = phoneNumber
};
if (string.IsNullOrWhiteSpace(message))
{
message = $"Tap this link to start ChoiceView: {clientUrl.Uri}";
}
if (!message.Contains(phoneNumber) && !message.EndsWith("phone="))
{
message += $" Tap this link to start ChoiceView: {clientUrl.Uri}";
}
}
catch (UriFormatException e)
{
context.Logger.LogLine($"Cannot create the ChoiceView client uri: {e.Message}");
if (string.IsNullOrWhiteSpace(message) ||
(!message.Contains(phoneNumber) && !message.EndsWith("phone=")))
{
return(new JObject(new JProperty("LambdaResult", false)));
}
}
}
else
{
if (string.IsNullOrWhiteSpace(message))
{
context.Logger.LogLine("No SMS message to send.");
return(new JObject(new JProperty("LambdaResult", false)));
}
}
var numberType = await GetPhoneNumberType(customerNumber, context.Logger);
if (numberType.Equals("mobile"))
{
result = await SendSMS(systemNumber, customerNumber, message, context.Logger);
}
else
{
context.Logger.LogLine("Cannot send SMS to a landline or VOIP telephone number.");
result = false;
}
}
else
{
var errorMessage = !customerNumberType.Equals("TELEPHONE_NUMBER")
? "Customer address"
: "System address";
context.Logger.LogLine($"Cannot send SMS: {errorMessage} is not a valid telephone number.");
result = false;
}
return(new JObject(new JProperty("LambdaResult", result)));
}
