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 function verifyD2DApp(appID) {
  41     var metaDataArray = tizen.application.getAppMetaData(appID),
  42         metaDataArray = metaDataArray.filter(function (metaData) {
  43             return metaData.key === "d2dservice" && metaData.value === "enable";
  44         });
  45     return metaDataArray.length;
  46 }
  47
  48 module.exports = function (app, port) {
  49     var appProxy = express.Router();
  50
  51     appProxy.use('/app', express.json());
  52     appProxy.post('/', (req, res) => {
  53         var action = req.body.action;
  54         path = req.body.appPkgID ? req.body.appPkgID : path;
  55         var appId = req.body.appAppID;
  56         var pkgId = req.body.appPkgID;
  57         var name = appId.split(".")[1];
  58         var appRouter = appRouters.filter(function (router) {
  59             return router.path === path;
  60         })[0];
  61
  62         if (verifyD2DApp(appId)) {
  63             if (!appRouter) {
  64                 appRouters.push({
  65                     path: path,
  66                     name: name,
  67                     router: new AppRouter(app, path)
  68                 });
  69             }
  70             console.log('[GlobalWebServer] appProxy.post ', path, action);
  71             // run app
  72             runApp(appId, port, function () {
  73                 res.send({ port: port });
  74             });
  75         }
  76     });
  77
  78     appProxy.get('/', (req, res) => {
  79         var baseRoute = 'app';
  80         var myIndex = -1;
  81         for (var i = 0; i < appRouters.length; i++) {
  82             if (appRouters[i].path == path) {
  83                 myIndex = i;
  84                 break;
  85             }
  86         }
  87         var myApp = '/' + appRouters[myIndex].name;
  88         var myRoute = baseRoute.concat(myApp);
  89         res.redirect(myRoute);
  90         appProxy.use(myApp, appRouters[myIndex].router);
  91     });
  92
  93     return appProxy;
  94 }