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node-red-nodes/social/pusher/pusher.js

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module.exports = function(RED) {
"use strict";
var Pusher = require('pusher');
var PusherClient = require('pusher-client');
//node for subscribing to an event/channel
function PusherNode(n) {
// Create a RED node
RED.nodes.createNode(this,n);
var node = this;
var credentials = this.credentials;
if ((credentials) && (credentials.hasOwnProperty("pusherappkey_sub"))) { this.appkey = credentials.pusherappkey_sub; }
else { this.error("No Pusher app key set for input node"); }
//get parameters from user
this.channel = n.channel;
this.eventname = n.eventname;
//create a subscription to the channel and event defined by user
var socket = new PusherClient(''+this.appkey);
node.channel = socket.subscribe(''+this.channel);
socket.bind(''+this.eventname,
function(data) {
var msg = {topic:this.eventname};
if (data.hasOwnProperty("payload")) { msg.payload = data.payload; }
else { msg.payload = data; }
node.send(msg);
}
);
this.on("close", function() {
socket.disconnect();
});
}
//Node for sending Pusher events
function PusherNodeSend(n) {
// Create a RED node
RED.nodes.createNode(this,n);
var node = this;
var credentials = this.credentials;
if ((credentials) && (credentials.hasOwnProperty("pusherappid"))) { this.appid = credentials.pusherappid; }
else { this.error("No Pusher api token set"); }
if ((credentials) && (credentials.hasOwnProperty("pusherappsecret"))) { this.appsecret = credentials.pusherappsecret; }
else { this.error("No Pusher user secret set"); }
if ((credentials) && (credentials.hasOwnProperty("pusherappkey"))) { this.appkey = credentials.pusherappkey; }
else { this.error("No Pusher user key set"); }
//get parameters from user
this.channel = n.channel;
this.eventname = n.eventname;
var pusher = new Pusher({
appId: this.appid,
key: this.appkey,
secret: this.appsecret
});
node.on("input", function(msg) {
pusher.trigger(this.channel, this.eventname, {
"payload": msg.payload
});
});
node.on("close", function() {
});
}
RED.nodes.registerType("pusher in",PusherNode,{
credentials: {
pusherappkey_sub: "text"
}
});
RED.nodes.registerType("pusher out",PusherNodeSend,{
credentials: {
pusherappid: {type:"text"},
pusherappkey: {type:"text"},
pusherappsecret: {type:"password"}
}
});
}