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node-red/test/red/comms_spec.js

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/**
* Copyright 2014, 2015 IBM Corp.
*
* 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.
**/
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var should = require("should");
var sinon = require("sinon");
var when = require("when");
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var http = require('http');
var express = require('express');
var app = express();
var WebSocket = require('ws');
var comms = require("../../red/comms.js");
var Users = require("../../red/api/auth/users");
var Tokens = require("../../red/api/auth/tokens");
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var address = '127.0.0.1';
var listenPort = 0; // use ephemeral port
describe("comms", function() {
describe("with default keepalive", function() {
var server;
var url;
var port;
before(function(done) {
server = http.createServer(function(req,res){app(req,res)});
comms.init(server, {});
server.listen(listenPort, address);
server.on('listening', function() {
port = server.address().port;
url = 'http://' + address + ':' + port + '/comms';
comms.start();
done();
});
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});
after(function() {
comms.stop();
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});
it('accepts connection', function(done) {
var ws = new WebSocket(url);
ws.on('open', function() {
ws.close();
done();
});
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});
it('publishes message after subscription', function(done) {
var ws = new WebSocket(url);
ws.on('open', function() {
ws.send('{"subscribe":"topic1"}');
comms.publish('topic1', 'foo');
});
ws.on('message', function(msg) {
msg.should.equal('{"topic":"topic1","data":"foo"}');
ws.close();
done();
});
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});
it('publishes retained message for subscription', function(done) {
comms.publish('topic2', 'bar', true);
var ws = new WebSocket(url);
ws.on('open', function() {
ws.send('{"subscribe":"topic2"}');
});
ws.on('message', function(msg) {
msg.should.equal('{"topic":"topic2","data":"bar"}');
ws.close();
done();
});
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});
it('retained message is deleted by non-retained message', function(done) {
comms.publish('topic3', 'retained', true);
comms.publish('topic3', 'non-retained');
var ws = new WebSocket(url);
ws.on('open', function() {
ws.send('{"subscribe":"topic3"}');
comms.publish('topic3', 'new');
});
ws.on('message', function(msg) {
msg.should.equal('{"topic":"topic3","data":"new"}');
ws.close();
done();
});
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});
it('malformed messages are ignored',function(done) {
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var ws = new WebSocket(url);
ws.on('open', function() {
ws.send('not json');
ws.send('[]');
ws.send('{"subscribe":"topic3"}');
comms.publish('topic3', 'correct');
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});
ws.on('message', function(msg) {
msg.should.equal('{"topic":"topic3","data":"correct"}');
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ws.close();
done();
});
});
// The following test currently fails due to minimum viable
// implementation. More test should be written to test topic
// matching once this one is passing
if (0) {
it('receives message on correct topic', function(done) {
var ws = new WebSocket(url);
ws.on('open', function() {
ws.send('{"subscribe":"topic4"}');
comms.publish('topic5', 'foo');
comms.publish('topic4', 'bar');
});
ws.on('message', function(msg) {
msg.should.equal('{"topic":"topic4","data":"bar"}');
ws.close();
done();
});
});
}
});
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describe("disabled editor", function() {
var server;
var url;
var port;
before(function(done) {
server = http.createServer(function(req,res){app(req,res)});
comms.init(server, {disableEditor:true});
server.listen(listenPort, address);
server.on('listening', function() {
port = server.address().port;
url = 'http://' + address + ':' + port + '/comms';
comms.start();
done();
});
});
after(function() {
comms.stop();
});
it('rejects websocket connections',function(done) {
var ws = new WebSocket(url);
ws.on('open', function() {
done(new Error("Socket connection unexpectedly accepted"));
ws.close();
});
ws.on('error', function() {
done();
});
});
});
describe("non-default httpAdminRoot set: /adminPath", function() {
var server;
var url;
var port;
before(function(done) {
server = http.createServer(function(req,res){app(req,res)});
comms.init(server, {httpAdminRoot:"/adminPath"});
server.listen(listenPort, address);
server.on('listening', function() {
port = server.address().port;
url = 'http://' + address + ':' + port + '/adminPath/comms';
comms.start();
done();
});
});
after(function() {
comms.stop();
});
it('accepts connections',function(done) {
var ws = new WebSocket(url);
ws.on('open', function() {
ws.close();
done();
});
ws.on('error', function() {
done(new Error("Socket connection failed"));
});
});
});
describe("non-default httpAdminRoot set: /adminPath/", function() {
var server;
var url;
var port;
before(function(done) {
server = http.createServer(function(req,res){app(req,res)});
comms.init(server, {httpAdminRoot:"/adminPath/"});
server.listen(listenPort, address);
server.on('listening', function() {
port = server.address().port;
url = 'http://' + address + ':' + port + '/adminPath/comms';
comms.start();
done();
});
});
after(function() {
comms.stop();
});
it('accepts connections',function(done) {
var ws = new WebSocket(url);
ws.on('open', function() {
ws.close();
done();
});
ws.on('error', function() {
done(new Error("Socket connection failed"));
});
});
});
describe("non-default httpAdminRoot set: adminPath", function() {
var server;
var url;
var port;
before(function(done) {
server = http.createServer(function(req,res){app(req,res)});
comms.init(server, {httpAdminRoot:"adminPath"});
server.listen(listenPort, address);
server.on('listening', function() {
port = server.address().port;
url = 'http://' + address + ':' + port + '/adminPath/comms';
comms.start();
done();
});
});
after(function() {
comms.stop();
});
it('accepts connections',function(done) {
var ws = new WebSocket(url);
ws.on('open', function() {
ws.close();
done();
});
ws.on('error', function() {
done(new Error("Socket connection failed"));
});
});
});
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describe("keep alives", function() {
var server;
var url;
var port;
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before(function(done) {
server = http.createServer(function(req,res){app(req,res)});
comms.init(server, {webSocketKeepAliveTime: 100});
server.listen(listenPort, address);
server.on('listening', function() {
port = server.address().port;
url = 'http://' + address + ':' + port + '/comms';
comms.start();
done();
});
});
after(function() {
comms.stop();
});
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it('are sent', function(done) {
var ws = new WebSocket(url);
var count = 0;
ws.on('message', function(data) {
var msg = JSON.parse(data);
msg.should.have.property('topic','hb');
msg.should.have.property('data').be.a.Number;
count++;
if (count == 3) {
ws.close();
done();
}
});
});
it('are not sent if other messages are sent', function(done) {
var ws = new WebSocket(url);
var count = 0;
var interval;
ws.on('open', function() {
ws.send('{"subscribe":"foo"}');
interval = setInterval(function() {
comms.publish('foo', 'bar');
}, 50);
});
ws.on('message', function(data) {
var msg = JSON.parse(data);
// It is possible a heartbeat message may arrive - so ignore them
if (msg.topic != "hb") {
msg.should.have.property('topic', 'foo');
msg.should.have.property('data', 'bar');
count++;
if (count == 5) {
clearInterval(interval);
ws.close();
done();
}
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}
});
});
});
describe('authentication required, no anonymous',function() {
var server;
var url;
var port;
var getDefaultUser;
var getUser;
var getToken;
before(function(done) {
getDefaultUser = sinon.stub(Users,"default",function() { return when.resolve(null);});
getUser = sinon.stub(Users,"get", function(username) {
if (username == "fred") {
return when.resolve({permissions:"read"});
} else {
return when.resolve(null);
}
});
getToken = sinon.stub(Tokens,"get",function(token) {
if (token == "1234") {
return when.resolve({user:"fred"});
} else if (token == "5678") {
return when.resolve({user:"barney"});
} else {
return when.resolve(null);
}
});
server = http.createServer(function(req,res){app(req,res)});
comms.init(server, {adminAuth:{}});
server.listen(listenPort, address);
server.on('listening', function() {
port = server.address().port;
url = 'http://' + address + ':' + port + '/comms';
comms.start();
done();
});
});
after(function() {
getDefaultUser.restore();
getUser.restore();
getToken.restore();
comms.stop();
});
it('prevents connections that do not authenticate',function(done) {
var ws = new WebSocket(url);
var count = 0;
var interval;
ws.on('open', function() {
ws.send('{"subscribe":"foo"}');
});
ws.on('close', function() {
done();
});
});
it('allows connections that do authenticate',function(done) {
var ws = new WebSocket(url);
var received = 0;
ws.on('open', function() {
ws.send('{"auth":"1234"}');
});
ws.on('message', function(msg) {
received++;
if (received == 1) {
msg.should.equal('{"auth":"ok"}');
ws.send('{"subscribe":"foo"}');
comms.publish('foo', 'correct');
} else {
msg.should.equal('{"topic":"foo","data":"correct"}');
ws.close();
}
});
ws.on('close', function() {
received.should.equal(2);
done();
});
});
it('rejects connections for non-existant token',function(done) {
var ws = new WebSocket(url);
var received = 0;
ws.on('open', function() {
ws.send('{"auth":"2345"}');
});
ws.on('close', function() {
done();
});
});
it('rejects connections for invalid token',function(done) {
var ws = new WebSocket(url);
var received = 0;
ws.on('open', function() {
ws.send('{"auth":"5678"}');
});
ws.on('close', function() {
done();
});
});
});
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describe('authentication required, anonymous enabled',function() {
var server;
var url;
var port;
var getDefaultUser;
before(function(done) {
getDefaultUser = sinon.stub(Users,"default",function() { return when.resolve({permissions:"read"});});
server = http.createServer(function(req,res){app(req,res)});
comms.init(server, {adminAuth:{}});
server.listen(listenPort, address);
server.on('listening', function() {
port = server.address().port;
url = 'http://' + address + ':' + port + '/comms';
comms.start();
done();
});
});
after(function() {
getDefaultUser.restore();
comms.stop();
});
it('allows anonymous connections that do not authenticate',function(done) {
var ws = new WebSocket(url);
var count = 0;
var interval;
ws.on('open', function() {
ws.send('{"subscribe":"foo"}');
setTimeout(function() {
comms.publish('foo', 'correct');
},200);
});
ws.on('message', function(msg) {
msg.should.equal('{"topic":"foo","data":"correct"}');
count++;
ws.close();
});
ws.on('close', function() {
count.should.equal(1);
done();
});
});
});
});