115 lines
3.6 KiB
JavaScript
115 lines
3.6 KiB
JavaScript
/**
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* pusher.js
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* Subscription module for the Pusher service (www.pusher.com)
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* Requires 'pusher' and 'pusher-client' modules.
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*
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* Copyright 2014, 2015 Charalampos Doukas, @BuildingIoT
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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module.exports = function(RED) {
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"use strict";
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var Pusher = require('pusher');
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var PusherClient = require('pusher-client');
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//node for subscribing to an event/channel
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function PusherNode(n) {
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// Create a RED node
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RED.nodes.createNode(this,n);
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var node = this;
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var credentials = this.credentials;
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if ((credentials) && (credentials.hasOwnProperty("pusherappkey_sub"))) { this.appkey = credentials.pusherappkey_sub; }
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else { this.error("No Pusher app key set for input node"); }
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//get parameters from user
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this.channel = n.channel;
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this.eventname = n.eventname;
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//create a subscription to the channel and event defined by user
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var socket = new PusherClient(''+this.appkey);
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var my_channel = socket.subscribe(''+this.channel);
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socket.bind(''+this.eventname,
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function(data) {
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var msg = {};
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if (data.hasOwnProperty("payload")) { msg.payload = data.payload; }
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else { msg.payload = data; }
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node.send(msg);
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}
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);
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this.on("close", function() {
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socket.disconnect();
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});
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}
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//Node for sending Pusher events
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function PusherNodeSend(n) {
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// Create a RED node
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RED.nodes.createNode(this,n);
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var node = this;
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var credentials = this.credentials;
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if ((credentials) && (credentials.hasOwnProperty("pusherappid"))) { this.appid = credentials.pusherappid; }
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else { this.error("No Pusher api token set"); }
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if ((credentials) && (credentials.hasOwnProperty("pusherappsecret"))) { this.appsecret = credentials.pusherappsecret; }
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else { this.error("No Pusher user secret set"); }
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if ((credentials) && (credentials.hasOwnProperty("pusherappkey"))) { this.appkey = credentials.pusherappkey; }
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else { this.error("No Pusher user key set"); }
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//get parameters from user
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this.channel = n.channel;
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this.eventname = n.eventname;
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var pusher = new Pusher({
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appId: this.appid,
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key: this.appkey,
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secret: this.appsecret
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});
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this.on("input", function(msg){
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pusher.trigger(this.channel, this.eventname, {
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"payload": msg.payload
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});
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});
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this.on("close", function() {
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});
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}
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//debugging on the output:
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var displayResult = function(result) {
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node.log(result);
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};
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var displayError = function(err) {
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node.log("Error: "+err);
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};
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RED.nodes.registerType("pusher in",PusherNode,{
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credentials: {
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pusherappkey_sub: "text"
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}
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});
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RED.nodes.registerType("pusher out",PusherNodeSend,{
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credentials: {
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pusherappid: {type:"text"},
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pusherappkey: {type:"text"},
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pusherappsecret: {type:"password"}
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}
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});
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}
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