skyquake/framework/utils/utils.js

   1 /*
   2  *
   3  *   Copyright 2016 RIFT.IO Inc
   4  *
   5  *   Licensed under the Apache License, Version 2.0 (the "License");
   6  *   you may not use this file except in compliance with the License.
   7  *   You may obtain a copy of the License at
   8  *
   9  *       http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *   Unless required by applicable law or agreed to in writing, software
  12  *   distributed under the License is distributed on an "AS IS" BASIS,
  13  *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *   See the License for the specific language governing permissions and
  15  *   limitations under the License.
  16  *
  17  */
  18 //Login needs to be refactored. Too many cross dependencies
  19 var AuthActions = require('../widgets/login/loginAuthActions.js');
  20 var $ = require('jquery');
  21 var rw = require('utils/rw.js');
  22 var API_SERVER = rw.getSearchParams(window.location).api_server;
  23 var NODE_PORT = 3000;
  24 var SockJS = require('sockjs-client');
  25
  26 var Utils = {};
  27
  28 Utils.DescriptorModelMeta = null;
  29
  30 var INACTIVITY_TIMEOUT = 600000;
  31
  32 Utils.getInactivityTimeout = function() {
  33     return new Promise(function(resolve, reject) {
  34         $.ajax({
  35             url: '/inactivity-timeout',
  36             type: 'GET',
  37             success: function(data) {
  38                 resolve(data);
  39             },
  40             error: function(error) {
  41                 console.log("There was an error getting the inactivity-timeout: ", error);
  42                 reject(error);
  43             }
  44         }).fail(function(xhr) {
  45             console.log('There was an xhr error getting the inactivity-timeout', xhr);
  46             reject(xhr);
  47         });
  48     });
  49 };
  50
  51 Utils.isMultiplexerLoaded = function() {
  52     if (window.multiplexer) {
  53         return true;
  54     }
  55     return false;
  56 };
  57
  58 Utils.setupMultiplexClient = function() {
  59     var sockjs_url = '/multiplex';
  60
  61     var sockjs = new SockJS(sockjs_url);
  62
  63     var loadChecker = function() {
  64         try {
  65             window.multiplexer = new WebSocketMultiplex(sockjs);
  66             console.log('WebSocketMultiplex loaded');
  67         } catch (e) {
  68             // caught an error, retry in someTime
  69             console.log('WebSocketMultiplex not loaded yet. will try again in 1 second:', e);
  70             setTimeout(function() {
  71                 loadChecker();
  72             }, 1000);
  73         }
  74     }
  75     loadChecker();
  76 };
  77
  78 Utils.checkAndResolveSocketRequest = function(data, resolve, reject) {
  79     const checker = () => {
  80         if (!Utils.isMultiplexerLoaded()) {
  81             setTimeout(() => {
  82                 checker();
  83             }, 500);
  84         } else {
  85             resolve(data.id);
  86         }
  87     };
  88
  89     checker();
  90 };
  91
  92 Utils.bootstrapApplication = function() {
  93     var self = this;
  94     return new Promise(function(resolve, reject) {
  95         Promise.all([self.getInactivityTimeout()]).then(function(results) {
  96             INACTIVITY_TIMEOUT = results[0]['inactivity-timeout'];
  97             resolve();
  98         }, function(error) {
  99             console.log("Error bootstrapping application ", error);
 100             reject();
 101         });
 102     });
 103 };
 104
 105 Utils.getDescriptorModelMeta = function() {
 106     return new Promise(function(resolve, reject) {
 107         if (!Utils.DescriptorModelMeta) {
 108             $.ajax({
 109                 url: '/descriptor-model-meta?api_server=' + API_SERVER,
 110                 type: 'GET',
 111                 beforeSend: Utils.addAuthorizationStub,
 112                 success: function(data) {
 113                     Utils.DescriptorModelMeta = data;
 114                     Utils.DescriptorModelMetaLoaded = true;
 115                     resolve(data);
 116                 },
 117                 error: function(error) {
 118                     console.log("There was an error getting the schema: ", error);
 119                     reject(error);
 120                 }
 121             }).fail(function(xhr) {
 122                 console.log("There was an error getting the schema: ", xhr);
 123                 Utils.checkAuthentication(xhr.status);
 124             });
 125         } else {
 126             resolve(Utils.DescriptorModelMeta);
 127         }
 128     })
 129 }
 130
 131 Utils.addAuthorizationStub = function(xhr) {
 132     var Auth = window.sessionStorage.getItem("auth");
 133     xhr.setRequestHeader('Authorization', 'Basic ' + Auth);
 134 };
 135
 136 Utils.getByteDataWithUnitPrefix = function(number, precision) {
 137     var toPrecision = precision || 3;
 138     if (number < Math.pow(10, 3)) {
 139         return [number, 'B'];
 140     } else if (number < Math.pow(10, 6)) {
 141         return [(number / Math.pow(10, 3)).toPrecision(toPrecision), 'KB'];
 142     } else if (number < Math.pow(10, 9)) {
 143         return [(number / Math.pow(10, 6)).toPrecision(toPrecision), 'MB'];
 144     } else if (number < Math.pow(10, 12)) {
 145         return [(number / Math.pow(10, 9)).toPrecision(toPrecision), 'GB'];
 146     } else if (number < Math.pow(10, 15)) {
 147         return [(number / Math.pow(10, 12)).toPrecision(toPrecision), 'TB'];
 148     } else if (number < Math.pow(10, 18)) {
 149         return [(number / Math.pow(10, 15)).toPrecision(toPrecision), 'PB'];
 150     } else if (number < Math.pow(10, 21)) {
 151         return [(number / Math.pow(10, 18)).toPrecision(toPrecision), 'EB'];
 152     } else if (number < Math.pow(10, 24)) {
 153         return [(number / Math.pow(10, 21)).toPrecision(toPrecision), 'ZB'];
 154     } else if (number < Math.pow(10, 27)) {
 155         return [(number / Math.pow(10, 24)).toPrecision(toPrecision), 'ZB'];
 156     } else {
 157         return [(number / Math.pow(10, 27)).toPrecision(toPrecision), 'YB'];
 158     }
 159 }
 160
 161 Utils.getPacketDataWithUnitPrefix = function(number, precision) {
 162     var toPrecision = precision || 3;
 163     if (number < Math.pow(10, 3)) {
 164         return [number, 'P'];
 165     } else if (number < Math.pow(10, 6)) {
 166         return [(number / Math.pow(10, 3)).toPrecision(toPrecision), 'KP'];
 167     } else if (number < Math.pow(10, 9)) {
 168         return [(number / Math.pow(10, 6)).toPrecision(toPrecision), 'MP'];
 169     } else if (number < Math.pow(10, 12)) {
 170         return [(number / Math.pow(10, 9)).toPrecision(toPrecision), 'GP'];
 171     } else if (number < Math.pow(10, 15)) {
 172         return [(number / Math.pow(10, 12)).toPrecision(toPrecision), 'TP'];
 173     } else if (number < Math.pow(10, 18)) {
 174         return [(number / Math.pow(10, 15)).toPrecision(toPrecision), 'PP'];
 175     } else if (number < Math.pow(10, 21)) {
 176         return [(number / Math.pow(10, 18)).toPrecision(toPrecision), 'EP'];
 177     } else if (number < Math.pow(10, 24)) {
 178         return [(number / Math.pow(10, 21)).toPrecision(toPrecision), 'ZP'];
 179     } else if (number < Math.pow(10, 27)) {
 180         return [(number / Math.pow(10, 24)).toPrecision(toPrecision), 'ZP'];
 181     } else {
 182         return [(number / Math.pow(10, 27)).toPrecision(toPrecision), 'YP'];
 183     }
 184 }
 185 Utils.loginHash = "#/login";
 186 Utils.setAuthentication = function(username, password, cb) {
 187     var self = this;
 188     var AuthBase64 = btoa(username + ":" + password);
 189     window.sessionStorage.setItem("auth", AuthBase64);
 190     self.detectInactivity();
 191     if (cb) {
 192         cb();
 193     }
 194 }
 195 Utils.clearAuthentication = function(callback) {
 196     var self = this;
 197     window.sessionStorage.removeItem("auth");
 198     AuthActions.notAuthenticated();
 199     window.sessionStorage.setItem("locationRefHash", window.location.hash);
 200     if (callback) {
 201         callback();
 202     } else {
 203         window.location.hash = Utils.loginHash;
 204     }
 205 }
 206 Utils.isNotAuthenticated = function(windowLocation, callback) {
 207     var self = this;
 208     self.detectInactivity();
 209     if (!window.sessionStorage.getItem("auth")) {
 210         Utils.clearAuthentication();
 211     }
 212 }
 213 Utils.isDetecting = false;
 214 Utils.detectInactivity = function(callback, duration) {
 215     var self = this;
 216     if (!self.isDetecting) {
 217         var cb = function() {
 218             self.clearAuthentication();
 219             if (callback) {
 220                 callback();
 221             }
 222         };
 223         var isInactive;
 224         var timeout = duration || INACTIVITY_TIMEOUT;
 225         var setInactive = function() {
 226             isInactive = setTimeout(cb, timeout);
 227         };
 228         var reset = function() {
 229             clearTimeout(isInactive);
 230             setInactive();
 231         }
 232         setInactive();
 233         window.addEventListener('mousemove', reset);
 234         window.addEventListener("keypress", reset);
 235         self.isDetecting = true;
 236     }
 237 }
 238 Utils.checkAuthentication = function(statusCode, cb) {
 239     var self = this;
 240     if (statusCode == 401) {
 241         if (cb) {
 242             cb();
 243         }
 244         window.sessionStorage.removeItem("auth")
 245         self.isNotAuthenticated(window.location)
 246         return true;
 247     }
 248     return false;
 249 }
 250
 251 Utils.isAuthenticationCached = function() {
 252     var self = this;
 253     if (window.sessionStorage.getItem("auth")) {
 254         return true;
 255     }
 256     return false;
 257 }
 258
 259 Utils.getHostNameFromURL = function(url) {
 260     var match = url.match(/^(https?\:)\/\/(([^:\/?#]*)(?:\:([0-9]+))?)([^?#]*)(\?[^#]*|)(#.*|)$/);
 261     return match && match[3];
 262 }
 263
 264 Utils.webSocketProtocol = function() {
 265     if (this.wsProto) {
 266         return this.wsProto;
 267     } else {
 268         if (window.location.protocol == 'http:') {
 269             this.wsProto = 'ws:'
 270         } else {
 271             this.wsProto = 'wss:'
 272         }
 273     }
 274     return this.wsProto;
 275 }
 276
 277 Utils.arrayIntersperse = (arr, sep) => {
 278     if (arr.length === 0) {
 279         return [];
 280     }
 281
 282     return arr.slice(1).reduce((xs, x, i) => {
 283         return xs.concat([sep, x]);
 284     }, [arr[0]]);
 285 }
 286
 287 module.exports = Utils;