mirror of
https://github.com/node-red/node-red-nodes.git
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188 lines
5.5 KiB
JavaScript
188 lines
5.5 KiB
JavaScript
/**
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* pusher_send.js
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* Subscription module for the Pusher service (www.pusher.com)
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* Requires 'pusher' module
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* Copyright 2014 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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var Pusher = require('pusher');
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var PusherClient = require('pusher-client');
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// Require main module
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var RED = require(process.env.NODE_RED_HOME+"/red/red");
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// The main node definition - most things happen in here
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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 = RED.nodes.getCredentials(n.id);
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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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"message": ""+msg.payload
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});
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});
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this.on("close", function() {
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// Called when the node is shutdown - eg on redeploy.
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// Allows ports to be closed, connections dropped etc.
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// eg: this.client.disconnect();
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});
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}
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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 = RED.nodes.getCredentials(n.id);
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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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msg.payload = data;
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node.send(msg);
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}
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);
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this.on("input", function(msg){
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});
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this.on("close", function() {
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// Called when the node is shutdown - eg on redeploy.
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// Allows ports to be closed, connections dropped etc.
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// eg: this.client.disconnect();
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socket.disconnect();
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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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console.log(result);
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};
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var displayError = function(err) {
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console.error(err);
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};
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// Register the node by name. This must be called before overriding any of the
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// Node functions.
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RED.nodes.registerType("pusher out",PusherNodeSend);
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RED.nodes.registerType("pusher in",PusherNode);
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var querystring = require('querystring');
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RED.httpAdmin.get('/pusher/:id',function(req,res) {
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var credentials = RED.nodes.getCredentials(req.params.id);
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if (credentials) {
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res.send(JSON.stringify({pusherappid:credentials.pusherappid,pusherappsecret:credentials.pusherappsecret, pusherappkey:credentials.pusherappkey, pusherappkey_sub:credentials.pusherappkey_sub}));
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} else {
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res.send(JSON.stringify({}));
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}
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});
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RED.httpAdmin.delete('/pusher/:id',function(req,res) {
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RED.nodes.deleteCredentials(req.params.id);
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res.send(200);
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});
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RED.httpAdmin.post('/pusher/:id',function(req,res) {
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var body = "";
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req.on('data', function(chunk) {
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body+=chunk;
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});
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req.on('end', function(){
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var newCreds = querystring.parse(body);
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var credentials = RED.nodes.getCredentials(req.params.id)||{};
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if (newCreds.pusherappid == null || newCreds.pusherappid == "") {
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delete credentials.pusherappid;
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} else {
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credentials.pusherappid = newCreds.pusherappid;
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}
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if (newCreds.pusherappkey == "") {
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delete credentials.pusherappkey;
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} else {
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credentials.pusherappkey = newCreds.pusherappkey||credentials.pusherappkey;
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}
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if (newCreds.pusherappsecret == "") {
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delete credentials.pusherappsecret;
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} else {
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credentials.pusherappsecret = newCreds.pusherappsecret||credentials.pusherappsecret;
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}
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if (newCreds.pusherappkey_sub == "") {
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delete credentials.pusherappkey_sub;
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} else {
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credentials.pusherappkey_sub = newCreds.pusherappkey_sub||credentials.pusherappkey_sub;
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}
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RED.nodes.addCredentials(req.params.id,credentials);
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res.send(200);
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});
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});
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