Working gateway

Change-Id: I8ca690fe9d1b7f8e20b438df1ddd48d6b2f99326
diff --git a/spec/.eslintrc b/spec/.eslintrc
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+++ b/spec/.eslintrc
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+{
+    "globals" :{
+        "describe": true,
+        "it": true,
+        "before": true,
+        "beforeEach": true,
+        "after": true,
+        "afterEach": true
+    }
+}
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diff --git a/spec/core_proxy.spec.js b/spec/core_proxy.spec.js
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+++ b/spec/core_proxy.spec.js
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+(function () {
+  'use strict';
+  
+  const chai = require('chai');
+  const expect = chai.expect;
+  const sinonChai = require('sinon-chai');
+  const supertest = require('supertest');
+  const mockery = require('mockery');
+  chai.use(sinonChai);
+
+  const request = require('superagent');
+  const stub = require('./spec_helper.js');
+
+  const configMock = {
+    xos: {
+      host: 'http://test-xos-url',
+      port: '80'
+    }
+  };
+
+  let app;
+
+  describe('The core proxy routes', () => {
+
+    // stub for GET method
+    stub.makeStub('getSuccess', request, 'get', cb => {
+        cb(null, {
+        status: 200, 
+        body: {msg: 'successfully proxied'}
+      });
+    });
+
+    // stub for POST method
+    stub.makeStub('postSuccess', request, 'post', cb => {
+        cb(null, {
+        status: 201, 
+        body: {msg: 'successfully proxied'}
+      });
+    });
+
+    // stub for PUT method
+    stub.makeStub('putSuccess', request, 'put', cb => {
+        cb(null, {
+        status: 200, 
+        body: {msg: 'successfully proxied'}
+      });
+    });
+
+    // stub for DELETE method
+    stub.makeStub('deleteSuccess', request, 'delete', cb => {
+        cb(null, {
+        status: 204
+      });
+    });
+
+    // mocking the config.rest module
+    before(() => {
+      mockery.enable({
+        warnOnReplace: true,
+        warnOnUnregistered: false
+      });
+      mockery.registerMock('../config/config.js', configMock);
+
+      app = require('../src/server.js').app;
+    });
+
+    after(() => {
+      mockery.deregisterMock('../config/config.js');
+      mockery.disable();
+    });
+
+    it('should read XOS address from config.rest module', (done) => {
+      const myStub = stub.getStub('getSuccess');
+
+      supertest(app)
+      .get('/api/core/')
+      .end((err) => {
+        if (err) return done(err);
+        expect(myStub.get.called).to.be.true;
+        expect(myStub.get).to.have.been.calledWith('http://test-xos-url:80/api/core/');
+        done();
+      });
+    });
+
+    it('should pass token and cookies along with the request', (done) => {
+      const myStub = stub.getStub('getSuccess');
+
+      supertest(app)
+      .get('/api/core/')
+      .set('Accept', 'application/json')
+      .set('x-csrftoken', 'testToken')
+      .set('cookie', 'testCookie')
+      .end(function(err) {
+        if (err) return done(err);
+        expect(myStub.set.getCall(0)).to.have.been.calledWith('x-csrftoken', 'testToken');
+        expect(myStub.set.getCall(1)).to.have.been.calledWith('cookie', 'testCookie');
+        done();
+      });
+    });
+
+    it('should pass query paramenters along with the request', (done) => {
+      const myStub = stub.getStub('getSuccess');
+
+      supertest(app)
+      .get('/api/core/instances/?no_hyperlink=1&node=1')
+      .end((err) => {
+        if (err) return done(err);
+        expect(myStub.get.called).to.be.true;
+        expect(myStub.get).to.have.been.calledWith('http://test-xos-url:80/api/core/instances/?no_hyperlink=1&node=1');
+        done();
+      });
+    });
+
+    it('should proxy GET request to XOS', (done) => {
+      supertest(app)
+      .get('/api/core/')
+      .set('Accept', 'application/json')
+      .set('x-csrftoken', 'testToken')
+      .set('cookie', 'testCookie')
+      .end(function(err, res) {
+        if (err) return done(err);
+        expect(res.status).to.equal(200);
+        expect(res.body).to.deep.equal({msg: 'successfully proxied'});
+        done();
+      });
+    });
+
+    it('should proxy POST request to XOS', (done) => {
+
+      const myStub = stub.getStub('postSuccess');
+
+      supertest(app)
+      .post('/api/core/')
+      .send({foo: 'bar'})
+      .set('Accept', 'application/json')
+      .set('x-csrftoken', 'testToken')
+      .set('cookie', 'testCookie')
+      .end(function(err, res) {
+        if (err) return done(err);
+        expect(myStub.send.getCall(0)).to.have.been.calledWith({foo: 'bar'});
+        expect(res.status).to.equal(201);
+        expect(res.body).to.deep.equal({msg: 'successfully proxied'});
+        done();
+      });
+    });
+
+    it('should proxy PUT request to XOS', (done) => {
+
+      const myStub = stub.getStub('putSuccess');
+
+      supertest(app)
+      .put('/api/core/')
+      .send({foo: 'bar'})
+      .set('Accept', 'application/json')
+      .set('x-csrftoken', 'testToken')
+      .set('cookie', 'testCookie')
+      .end(function(err, res) {
+        if (err) return done(err);
+        expect(myStub.send.getCall(0)).to.have.been.calledWith({foo: 'bar'});
+        expect(res.status).to.equal(200);
+        expect(res.body).to.deep.equal({msg: 'successfully proxied'});
+        done();
+      });
+    });
+
+    it('should proxy DELETE request to XOS', (done) => {
+
+      const myStub = stub.getStub('deleteSuccess');
+
+      supertest(app)
+      .delete('/api/core/')
+      .set('Accept', 'application/json')
+      .set('x-csrftoken', 'testToken')
+      .set('cookie', 'testCookie')
+      .end(function(err, res) {
+        if (err) return done(err);
+        expect(myStub.send).not.to.have.been.called;
+        expect(res.status).to.equal(204);
+        done();
+      });
+    });
+  });
+})();
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diff --git a/spec/index.html b/spec/index.html
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+++ b/spec/index.html
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+<!doctype html>
+<html>
+  <head>
+    <title>Socket.IO chat</title>
+    <script src="http://10.1.8.44:3000/socket.io/socket.io.js"></script>
+    <script
+      src="https://code.jquery.com/jquery-1.12.4.min.js"
+      integrity="sha256-ZosEbRLbNQzLpnKIkEdrPv7lOy9C27hHQ+Xp8a4MxAQ="
+      crossorigin="anonymous"></script>
+    <script src="https://rawgit.com/notifyjs/notifyjs/master/dist/notify.js"></script>
+
+    <style>
+      body {
+        max-width: 100%;
+      }
+    </style>
+<script>
+  /* global io $ alert*/
+  function enableSocket(auth) {
+
+    auth.user = JSON.parse(auth.user);
+
+    var socket = io.connect('http://10.1.8.44:3000', {
+      query: 'name=' + auth.user.username + '&token=' + auth.xoscsrftoken + '&sessionId=' + auth.xossessionid + '&id=' + auth.user.id
+    });
+    socket.on('event', function(data) {
+      var p = $('body').append('<p></p>');
+      p.append('<b>' + data.model + '</b><br/>');
+      p.append('<i>' + JSON.stringify(data.msg.changed_fields) + '</i>');
+      p.append('<pre>' + JSON.stringify(data.msg.object) + '</pre>');
+      console.log(data.object);
+      $.notify(data.model + ': ' + JSON.stringify(data.msg.object.name) + 'updated', 'success');
+    });
+  }
+
+  function login() {
+    var username = $('#username').val();
+    var password = $('#password').val();
+
+    $.get('http://10.1.8.44:3000/api/utility/login?username='+username+'&password='+password,
+      function(res) {
+        enableSocket(res);
+        $('#login').hide();
+      }
+    )
+    .fail(function(e) {
+      alert( 'error' );
+      console.log(e);
+    });
+  }
+</script>
+  </head>
+  <body>
+    <form onsubmit="login()" id="login">
+      <input type="text" id="username">
+      <input type="password" id="password">
+      <input type="button" value="Login" onclick="login()">
+    </form>
+  </body>
+</html>
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diff --git a/spec/redis.spec.js b/spec/redis.spec.js
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+++ b/spec/redis.spec.js
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+(function () {
+  'use strict';
+  
+  const chai = require('chai');
+  const expect = chai.expect;
+  const sinon = require('sinon');
+  const sinonChai = require('sinon-chai');
+  const mockery = require('mockery');
+  chai.use(sinonChai);
+  const fakeredis = require('fakeredis');
+
+  const client = fakeredis.createClient('test-client');
+  const publisher = fakeredis.createClient('test-client');
+
+  const socketSpy = sinon.spy();
+  const mockSocket = {
+    get: () => {
+      return {
+        emit: socketSpy
+      }
+    }
+  };
+  const channelName = 'Site';
+
+  describe('The event system', () => {
+
+    before((done) => {
+
+      // Enable mockery to mock objects
+      mockery.enable({
+          warnOnReplace: false,
+          warnOnUnregistered: false
+      });
+
+      // Stub the createClient method to *always* return the client created above
+      sinon.stub(fakeredis, 'createClient', () => client);
+
+      // Override the redis module with our fakeredis instance
+      mockery.registerMock('redis', fakeredis);
+
+      // mock the socketIo client to have a spy
+      mockery.registerMock('./websocket.js', mockSocket);
+
+      require('../src/controllers/redis.js');
+      setTimeout(() => {
+        done();
+      }, 1000);
+    });
+
+    after(() => {
+      mockery.disable();
+      fakeredis.createClient.restore();
+    });
+
+    // run after each test
+    beforeEach(() => {
+      client.unsubscribe(channelName);
+      client.subscribe(channelName);
+      publisher.flushdb();
+    });
+
+    it('should send a websocket event when it receive a redis event that is not JSON', (done) => {
+      publisher.publish(channelName, 'I am sending a message.');
+      setTimeout(() => {
+        expect(socketSpy).to.have.been.called;
+        expect(socketSpy).to.have.been.calledWith('event', {
+          model: channelName,
+          msg: 'I am sending a message.'
+        });
+        done();
+      }, 500)
+    });
+
+    it('should send a websocket event when it receive a redis event that is JSON', (done) => {
+      publisher.publish(channelName, JSON.stringify({msg: 'Json Message'}));
+      setTimeout(() => {
+        expect(socketSpy).to.have.been.called;
+        expect(socketSpy).to.have.been.calledWith('event', {
+          model: channelName,
+          msg: {msg: 'Json Message'}
+        });
+        done();
+      }, 1000)
+    });
+  });
+})();
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diff --git a/spec/spec_helper.js b/spec/spec_helper.js
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+++ b/spec/spec_helper.js
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+(function () {
+  'use strict';
+  
+  const sinon = require('sinon');
+
+  let stubCache = {};
+
+  exports.makeStub = (name, target, method, cb) => {
+    
+    let methodStub, prototypeStub;
+
+    function SuperAgentStub(end) {
+      this.end = end;
+      this.set = sinon.stub().returns(this);
+      this.send = sinon.stub().returns(this);
+      return this;
+    }
+
+    beforeEach(() => {
+      methodStub = sinon.stub(target, method);
+
+      prototypeStub = new SuperAgentStub(cb);
+
+      methodStub.returns(prototypeStub);
+
+      // cache stub (for use in tests)
+      stubCache[name] = {
+        set: prototypeStub.set,
+        send: prototypeStub.send
+      };
+      stubCache[name][method] = methodStub
+    });
+
+    afterEach(() => {
+      target[method].restore();
+    });
+    
+  };
+
+  exports.getStub = name => stubCache[name];
+
+})();
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diff --git a/spec/websocket.spec.js b/spec/websocket.spec.js
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+++ b/spec/websocket.spec.js
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+(function () {
+  'use strict';
+
+  const chai = require('chai');
+  const expect = chai.expect;
+  const sinonChai = require('sinon-chai');
+  chai.use(sinonChai);
+  const io = require('socket.io-client');
+  const server = require('../src/server.js');
+
+  describe('basic socket.io example', function() {
+
+    var client;
+
+    beforeEach(function(done) {
+      // Start our server
+      server.start();
+
+      // connect a client to the server
+      client = io.connect('http://localhost:3000', {
+        query: 'name=test@xos.org&token=testToken&sessionId=testSession&id=1'
+      });
+
+      // when is connected start testing
+      client.on('connect', () => {
+        done();
+      });
+    });
+
+    afterEach((done) => {
+      // disconnect the client
+      if(client.connected) {
+        client.disconnect();
+      }
+      done();
+    });
+
+    it('should store user details for a new connection', () => {
+      const clients = require('../src/controllers/clients.js');
+      const user = clients.clients[0];
+      expect(user.name).to.equal('test@xos.org')
+    });
+
+    it('should not store the same user twice', (done) => {
+
+      // connect a client to the server
+      const client2 = io.connect('http://localhost:3000', {
+        query: 'name=test@xos.org&token=testToken&sessionId=testSession&id=1'
+      });
+
+      // when is connected start testing
+      client2.on('connect', () => {
+        setTimeout(() => {
+          const clients = require('../src/controllers/clients.js');
+          expect(clients.clients.length).to.equal(1)
+          done();
+        }, 100);
+      });
+
+    });
+
+    it('should remove a user on disconnect', (done) => {
+      client.disconnect();
+      // we need to wait for the event to be dispatched
+      setTimeout(() => {
+        const clients = require('../src/controllers/clients.js');
+        expect(clients.clients.length).to.equal(0)
+        done();
+      }, 100);
+    });
+
+  });
+})();
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