| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  * Created by jensk on 25-10-2017. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | namespace CloudControl\Cms\storage; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use CloudControl\Cms\util\GlobalFunctions; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | class Cache | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |      * @var Cache | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |     private static $instance; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |      * @var string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     protected $storagePath; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |      * @var \PDO | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     protected $dbHandle; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 26 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 27 |  |  |     private function __construct() | 
            
                                                                        
                            
            
                                    
            
            
                | 28 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |         // Singleton, so private constructor | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |      * @return Cache | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     public static function getInstance() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |         if (!self::$instance instanceof Cache) { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |             self::$instance = new Cache(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         return self::$instance; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      * @param $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * @return \stdClass | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      * @throws \RuntimeException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |     public function getCacheForPath($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |         $dbInstace = $this->getDbInstance(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |         $sql = ' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |             SELECT * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |               FROM `cache` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |              WHERE `path` = :path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |              LIMIT 1 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |         '; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |         $stmt = $dbInstace->prepare($sql); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |         $stmt->bindParam(':path', $path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |         if ($stmt->execute()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |             return $stmt->fetch(\PDO::FETCH_OBJ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |             $error = $stmt->errorInfo(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |             $errorMsg = $error[2]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |             throw new \RuntimeException('SQLite Exception: ' . $errorMsg . ' in SQL: <br /><pre>' . $sql . '</pre>'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      * Clears all cache | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     public function clearCache() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         $dbInstace = $this->getDbInstance(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         $sql = ' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |             DELETE FROM `cache`; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |             VACUUM; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |         '; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |         $stmt = $dbInstace->prepare($sql); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         if ($stmt->execute()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |             return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |             $error = $stmt->errorInfo(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |             $errorMsg = $error[2]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |             throw new \RuntimeException('SQLite Exception: ' . $errorMsg . ' in SQL: <br /><pre>' . $sql . '</pre>'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      * Clears the cache for path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |      * @param $path string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |     public function clearCacheForPath($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |         $dbInstace = $this->getDbInstance(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |         $sql = ' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |        DELETE FROM `cache` | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |              WHERE `path` = :path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |              LIMIT 1 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |         '; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |         $stmt = $dbInstace->prepare($sql); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |         $stmt->bindParam(':path', $path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |         if ($stmt->execute()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |             return $stmt->fetch(\PDO::FETCH_OBJ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |             $error = $stmt->errorInfo(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |             $errorMsg = $error[2]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |             throw new \RuntimeException('SQLite Exception: ' . $errorMsg . ' in SQL: <br /><pre>' . $sql . '</pre>'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |      * @param $storagePath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |     public function setStoragePath($storagePath) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |         $this->storagePath = $storagePath; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |      * @return \PDO | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |     private function getDbInstance() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |         if ($this->dbHandle === null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |             $this->dbHandle = new \PDO('sqlite:' . $this->storagePath . DIRECTORY_SEPARATOR . 'cache.db'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |         return $this->dbHandle; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |      * @param $baseCacheSqlPath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |     public function init($baseCacheSqlPath) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |         $realBaseCacheSqlPath = realpath($baseCacheSqlPath); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |         $db = $this->getDbInstance(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |         $sql = file_get_contents($realBaseCacheSqlPath); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |         $db->exec($sql); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |      * @param string $requestUri | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |      * @param string $renderedContent | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |      * @param string $headers | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |      * @throws \RuntimeException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |     public function setCacheForPath($requestUri, $renderedContent, $headers) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |         $dbInstace = $this->getDbInstance(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |         $sql = ' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |             INSERT OR REPLACE INTO `cache` (path, creationStamp, headers, contents) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |                  VALUES (:path, :creationStamp, :headers, :contents); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |         '; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |         $contents = GlobalFunctions::sanitizeOutput($renderedContent); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |         $creationStamp = time(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |         $stmt = $dbInstace->prepare($sql); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |         $stmt->bindParam(':path', $requestUri); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |         $stmt->bindParam(':creationStamp', $creationStamp); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |         $stmt->bindParam(':contents', $contents); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |         $stmt->bindParam(':headers', $headers); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |         if ($stmt->execute()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |             return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |             $error = $stmt->errorInfo(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |             $errorMsg = $error[2]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |             throw new \RuntimeException('SQLite Exception: ' . $errorMsg . ' in SQL: <br /><pre>' . $sql . '</pre>'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 172 |  |  |  | 
            
                                                        
            
                                    
            
            
                | 173 |  |  | } |