| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * Shallow merges the first argument with the second. |
| * Retrieves/updates the userid if userFromParams is provided. |
| * @param {Object} config Current configuration object to be merged into. |
| * @param {Object} newConfig Configuration object to merge into the current config. |
| */ |
| export function configure(config, newConfig) { |
| Object.keys(newConfig).forEach(function(option) { |
| if (option === 'userFromParams') { |
| var userId = getUserIdFromParams(newConfig[option]); |
| if (userId) { |
| config.userId = userId; |
| } |
| } |
| config[option] = newConfig[option]; |
| }); |
| } |
| |
| /** |
| * Attempts to extract the userid from the query parameters of the URL. |
| * @param {string} param The name of the query parameter containing the userid. |
| * @return {string|null} The extracted/decoded userid, or null if none is found. |
| */ |
| export function getUserIdFromParams(param) { |
| var userField = param; |
| var regex = new RegExp('[?&]' + userField + '(=([^&#]*)|&|#|$)'); |
| var results = window.location.href.match(regex); |
| |
| if (results && results[2]) { |
| return decodeURIComponent(results[2].replace(/\+/g, ' ')); |
| } else { |
| return null; |
| } |
| } |