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<?php |
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namespace OCA\CMSPico\Files\Glob; |
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use OCA\CMSPico\Files\FileInterface; |
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use OCA\CMSPico\Files\FolderInterface; |
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use OCA\CMSPico\Files\NodeInterface; |
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use OCP\Files\GenericFileException; |
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use OCP\Files\NotPermittedException; |
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class GlobIterator implements \Iterator |
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{ |
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/** @var FolderInterface */ |
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private $folder; |
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/** @var GlobPattern */ |
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private $pattern; |
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/** @var FolderInterface[] */ |
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private $folders; |
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/** @var FolderInterface */ |
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private $current; |
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/** @var int */ |
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private $depth; |
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/** @var FileInterface */ |
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private $currentValue; |
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/** @var int */ |
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private $currentKey; |
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/** |
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* GlobIterator constructor. |
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* |
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* @param FolderInterface $folder |
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* @param string $pattern |
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*/ |
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public function __construct(FolderInterface $folder, string $pattern) |
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{ |
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$this->folder = $folder; |
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$this->pattern = new GlobPattern($pattern); |
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$this->init(); |
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} |
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/** |
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* @return void |
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*/ |
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private function init() |
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{ |
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$this->folders = [ $this->folder ]; |
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$this->current = $this->folder; |
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$this->depth = 0; |
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$this->currentValue = null; |
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$this->currentKey = -1; |
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} |
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/** |
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* @throws NotPermittedException |
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* @throws GenericFileException |
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*/ |
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public function rewind() |
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{ |
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$this->init(); |
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$this->current->rewind(); |
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} |
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/** |
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* @return void |
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*/ |
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public function next() |
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{ |
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$this->current->next(); |
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} |
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/** |
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* @return bool |
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*/ |
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public function valid(): bool |
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{ |
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do { |
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if ($this->current->valid()) { |
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/** @var NodeInterface $file */ |
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$file = $this->current->current(); |
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if (!$this->pattern->compare($this->depth, $file->getName())) { |
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$this->next(); |
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continue; |
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} |
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if ($file->isFolder()) { |
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/** @var FolderInterface $file */ |
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$this->descend($file); |
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continue; |
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} |
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/** @var FileInterface $file */ |
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$this->set($file); |
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return true; |
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} elseif ($this->depth > 0) { |
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$this->ascend(); |
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continue; |
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} |
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return false; |
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} while (true); |
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} |
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/** |
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* @return FileInterface |
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*/ |
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public function current(): FileInterface |
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{ |
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return $this->currentValue; |
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} |
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/** |
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* @return int |
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*/ |
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public function key(): int |
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{ |
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return $this->currentKey; |
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} |
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/** |
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* @param FolderInterface $folder |
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*/ |
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private function descend(FolderInterface $folder) |
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{ |
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$this->folders[] = $folder; |
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$this->depth++; |
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$this->current = $this->folders[$this->depth]; |
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$this->current->rewind(); |
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} |
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/** |
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* @return void |
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*/ |
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private function ascend() |
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{ |
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array_pop($this->folders); |
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$this->depth--; |
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$this->current = $this->folders[$this->depth]; |
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$this->current->next(); |
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} |
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/** |
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* @param FileInterface $file |
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*/ |
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private function set(FileInterface $file) |
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{ |
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$this->currentValue = $file; |
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$this->currentKey++; |
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} |
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} |
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nextcloud /
cms_pico
