| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * BEdita, API-first content management framework | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * Copyright 2021 Atlas Srl, ChannelWeb Srl, Chialab Srl | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * This file is part of BEdita: you can redistribute it and/or modify | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * it under the terms of the GNU Lesser General Public License as published | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * by the Free Software Foundation, either version 3 of the License, or | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * (at your option) any later version. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * See LICENSE.LGPL or <http://gnu.org/licenses/lgpl-3.0.html> for more details. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | namespace BEdita\WebTools\Controller\Component; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | use BEdita\WebTools\ApiClientProvider; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | use Cake\Cache\Cache; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | use Cake\Controller\Component; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  * Component to cache some GET API calls. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  * An index is used in order to refresh this cache with an external script. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | class ApiCacheComponent extends Component | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      * Default config for this component. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |     protected $_defaultConfig = [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         'cache' => '_apicache_', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |     ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * Use 'default' as fallback if no cache configuration is found. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      * @param array $config The configuration settings provided to this helper. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |      * @return void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |     public function initialize(array $config): void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |         parent::initialize($config); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |         if (!empty($config['cache'])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |             $this->setConfig('cache', $config['cache']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |         if (Cache::getConfig($this->getConfig('cache')) === null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |             $this->setConfig('cache', 'default'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * Cache key using type and query string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * @param string $path API path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      * @param array|null $query Optional query string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |     public function cacheKey(string $path, ?array $query = null): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |         $hash = md5(json_encode($query)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |         $path = str_replace('/', '_', $path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |         return sprintf('%s_%s', $path, $hash); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |      * - | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |      * @param string $key Cache Key | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |      * @param array $params Cache params | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |      * @return void | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 76 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 77 |  |  |     protected function updateCacheIndex(string $key, array $params): void | 
            
                                                                        
                            
            
                                    
            
            
                | 78 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 79 |  |  |         $index = (array)Cache::read('index', $this->getConfig('cache')); | 
            
                                                                        
                            
            
                                    
            
            
                | 80 |  |  |         if (!empty($index[$key])) { | 
            
                                                                        
                            
            
                                    
            
            
                | 81 |  |  |             return; | 
            
                                                                        
                            
            
                                    
            
            
                | 82 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 83 |  |  |         $index[$key] = $params; | 
            
                                                                        
                            
            
                                    
            
            
                | 84 |  |  |         Cache::write('index', $index, $this->getConfig('cache')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      * Cached GET API call | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      * @param string $path Path invoked | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |      * @param array|null $query Optional query string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |     public function get(string $path, ?array $query = null): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |         $key = $this->cacheKey($path, $query); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |         return (array)Cache::remember( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |             $key, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |             function () use ($key, $path, $query) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |                 $response = (array)ApiClientProvider::getApiClient()->get($path, $query); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |                 $this->updateCacheIndex($key, compact('path', 'query')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |                 return $response; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |             }, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |             $this->getConfig('cache') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 109 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 110 |  |  |  |