gists-can-help-for-tropo-dev.js

// DO NOT DELETE : this gist is referenced by https://www.tropo.com/2016/06/gists-can-help-tropo-scripting-development/
// and https://www.tropo.com/2016/06/devops-follow-tropo-spark/

// returns true or false
function isEmail(email) {
    // extract from http://stackoverflow.com/questions/46155/validate-email-address-in-javascript
    var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(email);
}

// returns an email address if found in the phrase specified
function extractEmail(phrase) {
    if (phrase) {
        var parts = phrase.split(" ");
        for (var i = 0; i < parts.length ; i++) {
            if (isEmail(parts[i])) {
                return parts[i];
            }
        }
    }
    return null;
}

// You may check currentCall features here : https://www.tropo.com/docs/scripting/currentcall
if (currentCall) {
  if (currentCall.network == "SMS") {
    var input = currentCall.initialText;
    log("DEBUG: received: " + input  + ", from: " + currentCall.callerID );
    
    // check we received a valid email address
    var email = extractEmail(input);
    if (email) {
      log("INFO: New subscription for email: " + email);
      say ("Thanks for suscribing to our service.");  
    }
    else {
      log("DEBUG: could not extract email from: " + input  + ", for: " + currentCall.callerID );
      say ("Sorry we could not read your email");  
    }
  }
  else {
    // Speak a welcome message if the incoming call is not a SMS
    log("INFO: incoming call from: " + currentCall.callerID );
    say("Please text your email to this number.");
  }
}
else {
  log("DEBUG: no outgoing call support here");
}