device_home/service/app_proxy.js

   1 const express = require('express');
   2 const url = require('url');
   3 const AppRouter = require('./app_router');
   4 var appRouters = [];
   5 var path = null;
   6 var currentD2DAppId = null;
   7
   8 function runApp(appId, port, callback) {
   9     function onRunningAppsContext(contexts) {
  10         var isRunning = false;
  11         for (var i = 0; i < contexts.length; i++) {
  12             if (appId === contexts[i].appId) {
  13                 isRunning = true;
  14                 break;
  15             }
  16         }
  17
  18         if (isRunning && currentD2DAppId === appId) {
  19             callback();
  20         } else {
  21             const urlParam = require('./service').getUrlParam();
  22             const urlObj = url.parse(urlParam, true).query;
  23             const appControl = new tizen.ApplicationControl(
  24                 "http://tizen.org/appcontrol/operation/default", null, null, null,
  25                 [new tizen.ApplicationControlData(
  26                     "http://tizen.org/appcontrol/data/launch_port", [port]
  27                 ),
  28                 new tizen.ApplicationControlData(
  29                     "http://tizen.org/appcontrol/data/url_parameter", [JSON.stringify(urlObj)]
  30                 )]
  31             );
  32
  33             currentD2DAppId = appId;
  34             tizen.application.launchAppControl(appControl, appId, callback);
  35         }
  36     }
  37     tizen.application.getAppsContext(onRunningAppsContext);
  38 }
  39
  40 module.exports = function(app, port) {
  41     var appProxy = express.Router();
  42
  43     appProxy.use('/app', express.json());
  44     appProxy.post('/', (req, res) => {
  45         var action = req.body.action;
  46         path = req.body.appPkgID ? req.body.appPkgID : path;
  47         var appId = req.body.appAppID;
  48         var pkgId = req.body.appPkgID;
  49         var name = appId.split(".")[1];
  50         var appRouter = appRouters.filter(function (router) {
  51             return router.path === path;
  52         })[0];
  53
  54         if (!appRouter) {
  55             appRouters.push({
  56                 path: path,
  57                 name: name,
  58                 router: new AppRouter(app, path)
  59             });
  60         }
  61
  62         console.log('[GlobalWebServer] appProxy.post ', path, action);
  63
  64         // run app
  65         runApp(appId, port, function() {
  66             res.send({port:port});
  67         });
  68     });
  69
  70     appProxy.get('/', (req, res) => {
  71         var baseRoute = 'app';
  72         var myIndex = -1;
  73         for (var i = 0; i < appRouters.length; i++) {
  74             if (appRouters[i].path == path) {
  75                 myIndex = i;
  76                 break;
  77             }
  78         }
  79         var myApp = '/' + appRouters[myIndex].name;
  80         var myRoute = baseRoute.concat(myApp);
  81         res.redirect(myRoute);
  82         appProxy.use(myApp, appRouters[myIndex].router);
  83     });
  84
  85     return appProxy;
  86 }