node-red-bluemix-nodes/twilio/56-twilio-cf.js

A collection of extra Node-RED nodes for IBM Bluemix.

/**
 * Copyright 2013 Andrew D Lindsay @AndrewDLindsay
 * http://blog.thiseldo.co.uk
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/

module.exports = function(RED) {
     
    var cfenv = require("cfenv");
    var appEnv = cfenv.getAppEnv();
    
    var services = [];
    if (appEnv.services['user-provided']) {
        services = services.concat(appEnv.services['user-provided'].filter(function(v) {
            return v.credentials.url == "https://api.twilio.com" && v.credentials.accountSID && v.credentials.authToken;
        }).map(function(v) {
            return {name:v.name,label:v.label};
        }));
    }
     
    var util = require('util');
    var twilio = require('twilio');
    
    var querystring = require('querystring');
    
    RED.httpAdmin.get('/twilio-api/vcap',function(req,res) {
        res.send(JSON.stringify(services));
    });
    
    RED.httpAdmin.get('/twilio-api/:id',function(req,res) {
        var credentials = RED.nodes.getCredentials(req.params.id);
        if (credentials) {
            res.send(JSON.stringify({hasToken:(credentials.token&&credentials.token!="")}));
        } else {
            res.send(JSON.stringify({}));
        }
    });
    
    RED.httpAdmin.delete('/twilio-api/:id',function(req,res) {
        RED.nodes.deleteCredentials(req.params.id);
        res.send(200);
    });
    
    RED.httpAdmin.post('/twilio-api/:id',function(req,res) {
        var newCreds = req.body;
        var credentials = RED.nodes.getCredentials(req.params.id)||{};
        if (newCreds.token == "") {
            delete credentials.token;
        } else {
            credentials.token = newCreds.token;
        }
        RED.nodes.addCredentials(req.params.id,credentials);
        res.send(200);
    });
    
    function TwilioAPINode(n) {
        RED.nodes.createNode(this,n);
        this.sid = n.sid;
        this.from = n.from;
        this.name = n.name;
        var credentials = RED.nodes.getCredentials(n.id);
        if (credentials) {
            this.token = credentials.token;
        }
    }
    RED.nodes.registerType("twilio-api",TwilioAPINode);
    
        
    function TwilioOutNode(n) {
        RED.nodes.createNode(this,n);
        this.number = n.number;
        
        if (n.service == "_ext_") {
            this.api = RED.nodes.getNode(n.twilio);
            this.twilioClient = twilio(this.api.sid,this.api.token);
            this.fromNumber = this.api.from;
        } else if (n.service != "") {
            var twiliokey = appEnv.getService(n.service);
            if (twiliokey) {
                this.twilioClient = twilio(twiliokey.credentials.accountSID, twiliokey.credentials.authToken);
                this.fromNumber = n.from;
            }
        }
        if (!this.twilioClient) {
            this.error("missing twilio credentials");
            return;
        }
        
        var node = this;
        this.on("input",function(msg) {
            if (typeof(msg.payload) == 'object') {
                msg.payload = JSON.stringify(msg.payload);
            }
            try {
                // Send SMS
                var tonum = node.number || msg.topic;
                node.twilioClient.sendMessage( {to: tonum, from: node.fromNumber, body: msg.payload}, function(err, response) {
                    if (err) {
                        node.error(err);
                    }
                    //console.log(response);
                });
            } catch (err) {
                node.error(err);
            }
        });
    }
    RED.nodes.registerType("twilio out",TwilioOutNode);
}