skyquake/plugins/composer/src/src/libraries/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
  19 'use strict';
  20
  21 import _cloneDeep from 'lodash/cloneDeep';
  22 import _isArray from 'lodash/isArray';
  23 import _map from 'lodash/map';
  24 import _flatten from 'lodash/flatten';
  25 import _find from 'lodash/find';
  26 import _toNumber from 'lodash/toNumber';
  27 import _isNumber from 'lodash/isNumber';
  28 import _clone from 'lodash/clone';
  29
  30 export default {
  31         addAuthorizationStub(xhr) {
  32                 xhr.setRequestHeader('Authorization', 'Basic YWRtaW46YWRtaW4=');
  33         },
  34         getSearchParams(url) {
  35                 var a = document.createElement('a');
  36                 a.href = url;
  37                 var params = {};
  38                 var items = a.search.replace('?', '').split('&');
  39                 for (var i = 0; i < items.length; i++) {
  40                         if (items[i].length > 0) {
  41                                 var key_value = items[i].split('=');
  42                                 params[key_value[0]] = decodeURIComponent(key_value[1]);
  43                         }
  44                 }
  45                 return params;
  46         },
  47         parseJSONIgnoreErrors(txt) {
  48                 try {
  49                         return JSON.parse(txt);
  50                 } catch (ignore) {
  51                         return {};
  52                 }
  53         },
  54         resolvePath(obj, path) {
  55                 // supports a.b, a[1] and foo[bar], etc.
  56                 // where obj is ['nope', 'yes', {a: {b: 1}, foo: 2}]
  57                 // then [1] returns 'yes'; [2].a.b returns 1; [2].a[foo] returns 2;
  58                 path = path.split(/[\.\[\]]/).filter(d => d);
  59                 return path.reduce((r, p) => {
  60                         if (r) {
  61                                 return r[p];
  62                         }
  63                 }, obj);
  64         },
  65         assignPathValue(obj, path, value) {
  66                 path = path.split(/[\.\[\]]/).filter(d => d);
  67                 // enable look-ahead to determine if type is array or object
  68                 const pathCopy = path.slice();
  69                 // last item in path used to assign value on the resolved object
  70                 const name = path.pop();
  71                 const resolvedObj = path.reduce((r, p, i) => {
  72                         if (typeof(r[p]) !== 'object') {
  73                                 // look-ahead to see if next path item is a number
  74                                 const isArray = !isNaN(parseInt(pathCopy[i + 1], 10));
  75                                 r[p] = isArray ? [] : {}
  76                         }
  77                         return r[p];
  78                 }, obj);
  79                 resolvedObj[name] = value;
  80         },
  81         updatePathValue(obj, path, value, isCase) {
  82                 // todo: replace implementation of assignPathValue with this impl and
  83                 // remove updatePathValue (only need one function, not both)
  84                 // same as assignPathValue except removes property if value is undefined
  85                 path = path.split(/[\.\[\]]/).filter(d => d);
  86                 const isRemove = typeof value === 'undefined';
  87                 // enable look-ahead to determine if type is array or object
  88                 const pathCopy = path.slice();
  89                 // last item in path used to assign value on the resolved object
  90                 const name = path.pop();
  91                 const resolvedObj = path.reduce((r, p, i) => {
  92                         // look-ahead to see if next path item is a number
  93                         const index = parseInt(pathCopy[i + 1], 10);
  94                         const isArray = !isNaN(index);
  95                         if (typeof(r[p]) !== 'object') {
  96                                 r[p] = isArray ? [] : {}
  97                         }
  98                         if (isRemove && ((i + 1) === path.length)) {
  99                                 if (isArray) {
 100                                         r[p] = r[p].filter((d, i) => i !== index);
 101                                 } else {
 102                                         if(isCase) {
 103                                                 delete r[name];
 104                                         } else {
 105                                                 delete r[p][name];
 106                                         }
 107                                 }
 108                         }
 109                         if(isCase) {
 110                                 return r;
 111                         } else {
 112                                 return r[p];
 113                         }
 114
 115                 }, obj);
 116                 if (!isRemove) {
 117                         resolvedObj[name] = value;
 118                 }
 119         },
 120         removePathValue(obj, path, isCase) {
 121                 // note updatePathValue removes value if third argument is undefined
 122                 return this.updatePathValue(obj, path, undefined, isCase);
 123         },
 124
 125         suffixAsInteger: (field) => {
 126                 return (obj) =>{
 127                         const str = String(obj[field]);
 128                         const value = str.replace(str.replace(/[\d]+$/, ''), '');
 129                         return 1 + parseInt(value, 10) || 0;
 130                 };
 131         },
 132
 133         toBiggestValue: (maxIndex, curIndex) => Math.max(maxIndex, curIndex),
 134
 135         isRelativePath (path) {
 136                 if (path.split('/')[0] == '..') {
 137                         return true;
 138                 }
 139                 return false;
 140         },
 141
 142         getResults (topLevelObject, pathArray) {
 143                 let objectCopy = _cloneDeep(topLevelObject);
 144                 let i = pathArray.length;
 145                 let results = [];
 146
 147                 while(pathArray[pathArray.length - i]) {
 148                         if (_isArray(objectCopy[pathArray[pathArray.length - i]])) {
 149                                 if (i == 2) {
 150                                         results = _map(objectCopy[pathArray[pathArray.length - i]], pathArray[pathArray.length - 1]);
 151                                 } else {
 152                                         objectCopy = objectCopy[pathArray[pathArray.length - i]];
 153                                 }
 154                         } else if (_isArray(objectCopy)) {
 155                                 objectCopy.map((object) => {
 156                                         if (_isArray(object[pathArray[pathArray.length - i]])) {
 157                                                 if (i == 2) {
 158                                                         results = results.concat(_map(object[pathArray[pathArray.length - i]], pathArray[pathArray.length - 1]));
 159                                                 }
 160                                         }
 161                                 })
 162                         }
 163                         i--;
 164                 }
 165
 166                 return results;
 167         },
 168
 169         getAbsoluteResults (topLevelObject, pathArray) {
 170                 let i = pathArray.length;
 171                 let objectCopy = _cloneDeep(topLevelObject);
 172                 let results = [];
 173
 174                 let fragment = pathArray[pathArray.length - i]
 175
 176                 while (fragment) {
 177                         if (i == 1) {
 178                                 // last fragment
 179                                 if (_isArray(objectCopy)) {
 180                                         // results will be obtained from a map
 181                                         results = _map(objectCopy, fragment);
 182                                 } else {
 183                                         // object
 184                                         if (fragment.match(/\[.*\]/g)) {
 185                                                 // contains a predicate
 186                                                 // shouldn't reach here
 187                                                 console.log('Something went wrong while resolving a leafref. Reached a leaf with predicate.');
 188                                         } else {
 189                                                 // contains no predicate
 190                                                 results.push(objectCopy[fragment]);
 191                                         }
 192                                 }
 193                         } else {
 194                                 if (_isArray(objectCopy)) {
 195                                         // is array
 196                                         objectCopy = _map(objectCopy, fragment);
 197
 198                                         // If any of the deeper object is an array, flatten the entire list.
 199                                         // This would usually be a bad leafref going out of its scope.
 200                                         // Log it too
 201                                         for (let i = 0; i < objectCopy.length; i++) {
 202                                                 if (_isArray(objectCopy[i])) {
 203                                                         objectCopy = _flatten(objectCopy);
 204                                                         console.log('This might be a bad leafref. Verify with backend team.')
 205                                                         break;
 206                                                 }
 207                                         }
 208                                 } else {
 209                                         // is object
 210                                         if (fragment.match(/\[.*\]/g)) {
 211                                                 // contains a predicate
 212                                                 let predicateStr = fragment.match(/\[.*\]/g)[0];
 213                                                 // Clip leading [ and trailing ]
 214                                                 predicateStr = predicateStr.substr(1, predicateStr.length - 2);
 215                                                 const predicateKeyValue = predicateStr.split('=');
 216                                                 const predicateKey = predicateKeyValue[0];
 217                                                 const predicateValue = predicateKeyValue[1];
 218                                                 // get key for object to search into
 219                                                 let key = fragment.split('[')[0];
 220                                                 let searchObject = {};
 221                                                 searchObject[predicateKey] = predicateValue;
 222                                                 let found = _find(objectCopy[key], searchObject);
 223                                                 if (found) {
 224                                                         objectCopy = found;
 225                                                 } else {
 226                                                         // check for numerical value
 227                                                         if (predicateValue != "" &&
 228                                                                 predicateValue != null &&
 229                                                                 predicateValue != NaN &&
 230                                                                 predicateValue != Infinity &&
 231                                                                 predicateValue != -Infinity) {
 232                                                                 let numericalPredicateValue = _toNumber(predicateValue);
 233                                                                 if (_isNumber(numericalPredicateValue)) {
 234                                                                         searchObject[predicateKey] = numericalPredicateValue;
 235                                                                         found = _find(objectCopy[key], searchObject);
 236                                                                 }
 237                                                         }
 238                                                         if (found) {
 239                                                                 objectCopy = found;
 240                                                         } else {
 241                                                                 return [];
 242                                                         }
 243                                                 }
 244                                         } else {
 245                                                 // contains no predicate
 246                                                 objectCopy = objectCopy[fragment];
 247                                                 if (!objectCopy) {
 248                                                         // contains no value
 249                                                         break;
 250                                                 }
 251                                         }
 252                                 }
 253                         }
 254                         i--;
 255                         fragment = pathArray[pathArray.length - i];
 256                 }
 257
 258                 return results;
 259         },
 260
 261         resolveCurrentPredicate (leafRefPath, container, pathCopy) {
 262                 if (leafRefPath.indexOf('current()') != -1) {
 263                         // contains current
 264
 265                         // Get the relative path from current
 266                         let relativePath = leafRefPath.match("current\\(\\)\/(.*)\]");
 267                         let relativePathArray = relativePath[1].split('/');
 268
 269                         while (relativePathArray[0] == '..') {
 270                                 pathCopy.pop();
 271                                 relativePathArray.shift();
 272                         }
 273
 274                         // Supports only one relative path up
 275                         // To support deeper paths, will need to massage the string more
 276                         // i.e. change '/'' to '.'
 277                         const searchPath = pathCopy.join('.').concat('.', relativePathArray[0]);
 278                         const searchValue = this.resolvePath(container.model, searchPath);
 279
 280                         const predicateStr = leafRefPath.match("(current.*)\]")[1];
 281                         leafRefPath = leafRefPath.replace(predicateStr, searchValue);
 282                 }
 283                 return leafRefPath;
 284         },
 285
 286         resolveLeafRefPath (catalogs, leafRefPath, fieldKey, path, container) {
 287                 let pathCopy = _clone(path);
 288                 // Strip any prefixes
 289                 let leafRefPathCopy = leafRefPath.replace(/[\w\d]*:/g, '');
 290                 // Strip any spaces
 291                 leafRefPathCopy = leafRefPathCopy.replace(/\s/g, '');
 292
 293                 // resolve any current paths
 294                 leafRefPathCopy = this.resolveCurrentPredicate(leafRefPathCopy, container, pathCopy);
 295
 296                 // Split on delimiter (/)
 297                 const pathArray = leafRefPathCopy.split('/');
 298                 let fieldKeyArray = fieldKey.split(':');
 299                 let results = [];
 300
 301                 // Check if relative path or not
 302                 // TODO: Below works but
 303                 // better to convert the pathCopy to absolute/rooted path
 304                 // and use the absolute module instead
 305                 if (this.isRelativePath(leafRefPathCopy)) {
 306                         let i = pathArray.length;
 307                         while (pathArray[pathArray.length - i] == '..') {
 308                                 fieldKeyArray.splice(-1, 1);
 309                                 if (!isNaN(Number(fieldKeyArray[fieldKeyArray.length - 1]))) {
 310                                         // found a number, so an index. strip it
 311                                         fieldKeyArray.splice(-1, 1);
 312                                 }
 313                                 i--;
 314                         }
 315
 316                         // traversed all .. - now traverse down
 317                         if (fieldKeyArray.length == 1) {
 318                                 for (let key in catalogs) {
 319                                         for (let subKey in catalogs[key]) {
 320                                                 let found = _find(catalogs[key][subKey], {id: fieldKeyArray[0]});
 321                                                 if (found) {
 322                                                         results = this.getAbsoluteResults(found, pathArray.splice(-i, i));
 323                                                         return results;
 324                                                 }
 325                                         }
 326                                 }
 327                         } else if (fieldKeyArray.length == 2) {
 328                                 for (let key in catalogs) {
 329                                         for (let subKey in catalogs[key]) {
 330                                                 console.log(key, subKey);
 331                                                 var found = _find(catalogs[key][subKey], {id: fieldKeyArray[0]});
 332                                                 if (found) {
 333                                                         for (let foundKey in found) {
 334                                                                 if (_isArray(found[foundKey])) {
 335                                                                         let topLevel = _find(found[foundKey], {id: fieldKeyArray[1]});
 336                                                                         if (topLevel) {
 337                                                                                 results = this.getAbsoluteResults(topLevel, pathArray.splice(-i, i));
 338                                                                                 return results;
 339                                                                         }
 340                                                                 } else {
 341                                                                         if (foundKey == fieldKeyArray[1]) {
 342                                                                                 results = this.getAbsoluteResults(found[foundKey], pathArray.splice(-i, i));
 343                                                                                 return results;
 344                                                                         }
 345                                                                 }
 346                                                         }
 347                                                 }
 348                                         }
 349                                 }
 350                         } else if (fieldKeyArray.length == 3) {
 351                                 for (let key in catalogs) {
 352                                         for (let subKey in catalogs[key]) {
 353                                                 let found = _find(catalogs[key][subKey], {id: fieldKeyArray[0]});
 354                                                 if (found) {
 355                                                         for (let foundKey in found) {
 356                                                                 if (_isArray(found[foundKey])) {
 357                                                                         let topLevel = _find(found[foundKey], {id: fieldKeyArray[1]});
 358                                                                         if (topLevel) {
 359                                                                                 results = this.getAbsoluteResults(topLevel, pathArray.splice(-i, i));
 360                                                                                 return results;
 361                                                                         }
 362                                                                 } else {
 363                                                                         if (foundKey == fieldKeyArray[1]) {
 364                                                                                 results = this.getAbsoluteResults(found[foundKey], pathArray.splice(-i, i));
 365                                                                                 return results;
 366                                                                         }
 367                                                                 }
 368                                                         }
 369                                                 }
 370                                         }
 371                                 }
 372                         } else {
 373                                 // not supported - too many levels deep ... maybe some day
 374                                 console.log('The relative path is from a node too many levels deep from root. This is not supported at the time');
 375                         }
 376                 } else {
 377                         // absolute path
 378                         if (pathArray[0] == "") {
 379                                 pathArray.splice(0, 1);
 380                         }
 381
 382                         let catalogKey = pathArray[0];
 383                         let topLevelObject = {};
 384
 385                         topLevelObject[catalogKey] = catalogs[catalogKey];
 386
 387                         results = this.getAbsoluteResults(topLevelObject, pathArray);
 388
 389                         return results;
 390                 }
 391         }
 392 }