| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace JellyBool\Flysystem\Upyun; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Upyun\Upyun; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use League\Flysystem\Config; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use League\Flysystem\Adapter\AbstractAdapter; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * Class UpyunAdapter | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * @package JellyBool\Flysystem\Upyun | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | class UpyunAdapter extends AbstractAdapter | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |      * @var | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |     protected $bucket; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |      * @var | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     protected $operator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      * @var | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     protected $password; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      * @var | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     protected $domain; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      * @var | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |     protected $protocol; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * UpyunAdapter constructor. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * @param $bucket | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      * @param $operator | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      * @param $password | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |      * @param mixed $domain | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      * @param mixed $protocol | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     public function __construct($bucket, $operator, $password, $domain, $protocol = 'http') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |         $this->bucket = $bucket; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |         $this->operator = $operator; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |         $this->password = $password; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |         $this->domain = $domain; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |         $this->protocol = $protocol; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * @param string $contents | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * @param Config $config | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |     public function write($path, $contents, Config $config) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         return $this->client()->write($path, $contents); | 
                            
                    |  |  |  | 
                                                                                        
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                | 62 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * @param resource $resource | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      * @param Config $config | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |     public function writeStream($path, $resource, Config $config) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |         return $this->client()->write($path, $resource); | 
                            
                    |  |  |  | 
                                                                                        
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                | 72 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |      * @param string $contents | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |      * @param Config $config | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |     public function update($path, $contents, Config $config) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |         return $this->write($path, $contents, $config); | 
                            
                    |  |  |  | 
                                                                                        
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                | 82 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * @param resource $resource | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      * @param Config $config | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |     public function updateStream($path, $resource, Config $config) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |         return $this->writeStream($path, $resource, $config); | 
                            
                    |  |  |  | 
                                                                                        
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                | 92 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |      * @param string $newpath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |     public function rename($path, $newpath) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |         $this->copy($path,$newpath); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |         return $this->delete($path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |      * @param string $newpath | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |     public function copy($path, $newpath) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         $this->writeStream($newpath, fopen($this->getUrl($path), 'r'), new Config()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |         return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |     public function delete($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |         return $this->client()->delete($path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |      * @param string $dirname | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |     public function deleteDir($dirname) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |         return $this->client()->deleteDir($dirname); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |      * @param string $dirname | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |      * @param Config $config | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |     public function createDir($dirname, Config $config) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |         return $this->client()->createDir($dirname); | 
                            
                    |  |  |  | 
                                                                                        
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                | 137 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |      * @param string $visibility | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |     public function setVisibility($path, $visibility) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |         return true; | 
                            
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                | 146 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |     public function has($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |         return $this->client()->has($path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |     public function read($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |         $contents = file_get_contents($this->getUrl($path)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |         return compact('contents', 'path'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |     public function readStream($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |         $stream = fopen($this->getUrl($path), 'r'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |         return compact('stream', 'path'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |      * @param string $directory | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |      * @param bool $recursive | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |     public function listContents($directory = '', $recursive = false) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |         $list = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |         $result = $this->client()->read($directory, null, [ 'X-List-Limit' => 100, 'X-List-Iter' => null]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |         foreach ($result['files'] as $files) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |             $list[] = $this->normalizeFileInfo($files, $directory); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |         return $list; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |      * @param string $path | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 193 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 194 |  |  |     public function getMetadata($path) | 
            
                                                                        
                            
            
                                    
            
            
                | 195 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 196 |  |  |         return $this->client()->info($path); | 
            
                                                                        
                            
            
                                    
            
            
                | 197 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |     public function getType($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |         $response = $this->getMetadata($path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |         return ['type' => $response['x-upyun-file-type']]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |     public function getSize($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |         $response = $this->getMetadata($path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |         return ['size' => $response['x-upyun-file-size']]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |     public function getMimetype($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |         $headers = get_headers($this->getUrl($path), 1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |         $mimetype = $headers['Content-Type']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |         return compact('mimetype'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |     public function getTimestamp($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |         $response = $this->getMetadata($path); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |         return ['timestamp' => $response['x-upyun-file-date']]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |      * @param string $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |     public function getVisibility($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |         return true; | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  |      * @param $path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  |     public function getUrl($path) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  |         return $this->normalizeHost($this->domain).$path; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  |      * @return Upyun | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  |     protected function client() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |         $config = new \Upyun\Config($this->bucket, $this->operator, $this->password); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |         $config->useSsl = config('filesystems.disks.upyun.protocol') === 'https' ? true : false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  |         return new Upyun($config); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  |      * Normalize the file info. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  |      * @param array $stats | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  |      * @param string $directory | 
            
                                                                                                            
                            
            
                                    
            
            
                | 271 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 272 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 273 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 274 |  |  |     protected function normalizeFileInfo(array $stats, string $directory) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 275 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 276 |  |  |         $filePath = ltrim($directory . '/' . $stats['name'], '/'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 277 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 278 |  |  |         return [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 279 |  |  |             'type' => $this->getType($filePath)['type'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 280 |  |  |             'path' => $filePath, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 281 |  |  |             'timestamp' => $stats['time'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 282 |  |  |             'size' => $stats['size'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 283 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 284 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 287 |  |  |      * @param $domain | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  |     protected function normalizeHost($domain) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 |  |  |         if (0 !== stripos($domain, 'https://') && 0 !== stripos($domain, 'http://')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  |             $domain = $this->protocol."://{$domain}"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  |         return rtrim($domain, '/').'/'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 298 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 299 |  |  |  | 
            
                        
If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design.
Let’s take a look at an example:
Our function
my_functionexpects aPostobject, and outputs the author of the post. The base classPostreturns a simple string and outputting a simple string will work just fine. However, the child classBlogPostwhich is a sub-type ofPostinstead decided to return anobject, and is therefore violating the SOLID principles. If aBlogPostwere passed tomy_function, PHP would not complain, but ultimately fail when executing thestrtouppercall in its body.