DEVNET3002 - Step 2 - SMS Bridge

devnet3002-step2.js

//
// Cisco Spark Client Library for Tropo
//

// Factory for the Spark Library, with 1 parameter
//    - the Spark API token
function SparkClient(spark_token) {

    if (!spark_token) {
        log("SPARK_CLIENT : bad configuration, no API token, exiting...");
        throw createError("SparkClient configuration error: no API token specified");
    }
    this.token = spark_token;

    log("SPARK_CLIENT: all set; ready to invoke spark");
}

// Returns a status code
SparkClient.prototype.createMemberShip = function(roomID, email) {

    // Robustify
    if (!roomID) {
        return 400;
    }
    if (!email) {
        return 400;
    }

    var result;
    try {
        // Open Connection
        var url = "https://api.ciscospark.com/v1/memberships";
        var connection = new java.net.URL(url).openConnection();

        // Set timeout to 10s
        connection.setReadTimeout(10000);
        connection.setConnectTimeout(10000);

        // Method == POST
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "application/json");
        connection.setRequestProperty("Authorization", "Bearer " + this.token);

        // Prepare payload
        var payload = '{ "roomId": "' + roomID + '", "personEmail": "' + email + '", "isModerator": "false" }'

        // [TODO] Check if this cannot be removed
        connection.setRequestProperty("Content-Length", payload.length);
        connection.setUseCaches(false);
        connection.setDoInput(true);
        connection.setDoOutput(true);

        //Send Post Data
        var bodyWriter = new java.io.DataOutputStream(connection.getOutputStream());
        log("SPARK_CLIENT: posting: " + payload + " to: " + url);
        bodyWriter.writeBytes(payload);
        bodyWriter.flush();
        bodyWriter.close();

        result = connection.getResponseCode();
        log("SPARK_CLIENT: read response code: " + result);

    }
    catch (e) {
        log("SPARK_CLIENT: could not log to Spark, socket Exception or Server Timeout");
        return 500;
    }

    if (result < 200 || result > 299) {
        log("SPARK_CLIENT: could not add user with email: " + email + " to room:" + roomID);
    }
    else {
        log("SPARK_CLIENT: user with email: " + email + " added to room:" + roomID);
    }

    return result; // success
}


//
// Custom Tropo script logic starts here
//

// 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;
}

// Adds the user with email to the room,
// Returns an HTTP status referenced here: https://developer.ciscospark.com/endpoint-memberships-post.html
function addToQuizRoom(email) {
    var client = new SparkClient("SPARK_TOKEN");
    var result = client.createMemberShip("ROOM_ID", email);
    return result;
}


// STARTS TROPO SESSION
if (currentCall) { // SMS
    var input = currentCall.initialText;
    var extractedEmail = extractEmail(input);
    if (!extractedEmail) { // send Welcome message
        say("Welcome to the DevNet Quiz. Text your email to join the Quiz room");
    }
    else { // register to the Sandbox Room
        var statusCode = addToQuizRoom(extractedEmail);
        switch (statusCode) {
            case 200:
                say("Thanks for joining, " + extractedEmail + " is now part of the 'DevNet Quiz' room");
                break;
            case 409:
                say("You're all set, " + extractedEmail + " is already a member of the 'DevNet Quiz' room");
                break;
            default:
                say("sorry but we could not add " + extractedEmail + " to the 'DevNet Quiz' room, try again...");
                break;
        }
    }
}
// END