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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Yii2 Pages Module  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link      https://github.com/hiqdev/yii2-module-pages  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package   yii2-module-pages  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license   BSD-3-Clause  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright Copyright (c) 2016-2017, HiQDev (http://hiqdev.com/)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace hiqdev\yii2\modules\pages\storage;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use creocoder\flysystem\Filesystem;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use hiqdev\yii2\collection\BaseObject;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use hiqdev\yii2\modules\pages\interfaces\StorageInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use hiqdev\yii2\modules\pages\models\AbstractPage;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use hiqdev\yii2\modules\pages\models\PagesList;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Yii;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class FileSystemStorage extends BaseObject implements StorageInterface  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /** @var string|Filesystem */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $fileSystem;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /** @var string */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $path;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $pageClasses = [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ''      => \hiqdev\yii2\modules\pages\models\OtherPage::class,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'md'    => \hiqdev\yii2\modules\pages\models\MarkdownPage::class,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'php'   => \hiqdev\yii2\modules\pages\models\PhpPage::class,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'twig'  => \hiqdev\yii2\modules\pages\models\TwigPage::class,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $page  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return AbstractPage|null  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws \yii\base\InvalidConfigException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getPage(string $page): ?AbstractPage  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($this->isDir($page)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            foreach (['index', 'README'] as $name) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $index = $this->getPage($page . '/' . $name);  | 
            
                            
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                                if ($index) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    return $index;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach (array_keys($this->pageClasses) as $extension) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $path = $page . '.' . $extension;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if ($this->getFileSystem()->has($path)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return AbstractPage::createFromFile($path, $this);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getList(?string $path): ?PagesList  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!is_null($path) && $this->isDir($path)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return PagesList::createFromDir($path, $this);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $page  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool|null  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws \yii\base\InvalidConfigException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function isDir(string $page): ?bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!$this->getFileSystem()->has($page)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $meta = $this->getMetadata($page);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $meta['type'] === 'dir';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $page  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return array|false  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws \yii\base\InvalidConfigException  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function getMetadata($page)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $this->getFileSystem()->getMetadata($page);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param mixed $fileSystem  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function setFileSystem($fileSystem): void  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->fileSystem = $fileSystem;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    104
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                     * @param string $path  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    105
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    106
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                    public function setPath(string $path): void  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->path = $path;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    112
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    113
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    114
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                    public function getPath(): string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    115
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->path;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    118
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                    119
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    120
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                     * @param string $path  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    121
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                     * @return null|string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    122
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                     * @throws \yii\base\InvalidConfigException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    123
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    124
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                    public function read(string $path): ?string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    125
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    126
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                        return $this->getFileSystem()->read($path);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    127
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    128
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                | 
                    129
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                                                     | 
                
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    130
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                 | 
                     * @param string $extension  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    131
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
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                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
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                 | 
                    public function findPageClass(string $extension): string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
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                                                     | 
                
                 | 
                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                        if (empty($this->pageClasses[$extension])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
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                                                     | 
                
                 | 
                            $extension = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                        return $this->pageClasses[$extension];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                     * Reads given path as array of already rtrimmed lines.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                     * @param string $path  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                     * @return false|string[]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                    public function readArray(string $path)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                        return preg_split("/((\r?\n)|(\r\n?))/", $this->fileSystem->read($path)); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                     * @param $filePath  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    155
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    156
                 | 
                                    
                                                     | 
                
                 | 
                    public function getLocalPath($filePath): string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    157
                 | 
                                    
                                                     | 
                
                 | 
                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    158
                 | 
                                    
                                                     | 
                
                 | 
                        return $this->path . '/' . $filePath;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    159
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    160
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    161
                 | 
                                    
                                                     | 
                
                 | 
                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    162
                 | 
                                    
                                                     | 
                
                 | 
                     * @return Filesystem  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    163
                 | 
                                    
                                                     | 
                
                 | 
                     * @throws \yii\base\InvalidConfigException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    164
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    165
                 | 
                                    
                                                     | 
                
                 | 
                    public function getFileSystem(): Filesystem  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    166
                 | 
                                    
                                                     | 
                
                 | 
                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    167
                 | 
                                    
                                                     | 
                
                 | 
                        if (!is_object($this->fileSystem)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    168
                 | 
                                    
                                                     | 
                
                 | 
                            $this->fileSystem = Yii::createObject([  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    169
                 | 
                                    
                                                     | 
                
                 | 
                                'class' => $this->fileSystem,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    170
                 | 
                                    
                                                     | 
                
                 | 
                                'path' => $this->path,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    171
                 | 
                                    
                                                     | 
                
                 | 
                            ]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    172
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    173
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    174
                 | 
                                    
                                                     | 
                
                 | 
                        return $this->fileSystem;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    175
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    176
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    177
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.