%PDF-1.4
Directory : /var/www/vhosts/lautnusantara.com/httpdocs/web/system/HTTP/Files/ |
<?php /** * This file is part of CodeIgniter 4 framework. * * (c) CodeIgniter Foundation <admin@codeigniter.com> * * For the full copyright and license information, please view * the LICENSE file that was distributed with this source code. */ namespace CodeIgniter\HTTP\Files; use RecursiveArrayIterator; use RecursiveIteratorIterator; /** * Class FileCollection * * Provides easy access to uploaded files for a request. */ class FileCollection { /** * An array of UploadedFile instances for any files * uploaded as part of this request. * Populated the first time either files(), file(), or hasFile() * is called. * * @var array|null */ protected $files; /** * Returns an array of all uploaded files that were found. * Each element in the array will be an instance of UploadedFile. * The key of each element will be the client filename. * * @return array|null */ public function all() { $this->populateFiles(); return $this->files; } /** * Attempts to get a single file from the collection of uploaded files. * * @return UploadedFile|null */ public function getFile(string $name) { $this->populateFiles(); if ($this->hasFile($name)) { if (strpos($name, '.') !== false) { $name = explode('.', $name); $uploadedFile = $this->getValueDotNotationSyntax($name, $this->files); return $uploadedFile instanceof UploadedFile ? $uploadedFile : null; } if (array_key_exists($name, $this->files)) { $uploadedFile = $this->files[$name]; return $uploadedFile instanceof UploadedFile ? $uploadedFile : null; } } return null; } /** * Verify if a file exist in the collection of uploaded files and is have been uploaded with multiple option. * * @return array|null */ public function getFileMultiple(string $name) { $this->populateFiles(); if ($this->hasFile($name)) { if (strpos($name, '.') !== false) { $name = explode('.', $name); $uploadedFile = $this->getValueDotNotationSyntax($name, $this->files); return (is_array($uploadedFile) && ($uploadedFile[array_key_first($uploadedFile)] instanceof UploadedFile)) ? $uploadedFile : null; } if (array_key_exists($name, $this->files)) { $uploadedFile = $this->files[$name]; return (is_array($uploadedFile) && ($uploadedFile[array_key_first($uploadedFile)] instanceof UploadedFile)) ? $uploadedFile : null; } } return null; } /** * Checks whether an uploaded file with name $fileID exists in * this request. * * @param string $fileID The name of the uploaded file (from the input) */ public function hasFile(string $fileID): bool { $this->populateFiles(); if (strpos($fileID, '.') !== false) { $segments = explode('.', $fileID); $el = $this->files; foreach ($segments as $segment) { if (! array_key_exists($segment, $el)) { return false; } $el = $el[$segment]; } return true; } return isset($this->files[$fileID]); } /** * Taking information from the $_FILES array, it creates an instance * of UploadedFile for each one, saving the results to this->files. * * Called by files(), file(), and hasFile() */ protected function populateFiles() { if (is_array($this->files)) { return; } $this->files = []; if (empty($_FILES)) { return; } $files = $this->fixFilesArray($_FILES); foreach ($files as $name => $file) { $this->files[$name] = $this->createFileObject($file); } } /** * Given a file array, will create UploadedFile instances. Will * loop over an array and create objects for each. * * @return array|UploadedFile */ protected function createFileObject(array $array) { if (! isset($array['name'])) { $output = []; foreach ($array as $key => $values) { if (! is_array($values)) { continue; } $output[$key] = $this->createFileObject($values); } return $output; } return new UploadedFile( $array['tmp_name'] ?? null, $array['name'] ?? null, $array['type'] ?? null, $array['size'] ?? null, $array['error'] ?? null ); } /** * Reformats the odd $_FILES array into something much more like * we would expect, with each object having its own array. * * Thanks to Jack Sleight on the PHP Manual page for the basis * of this method. * * @see http://php.net/manual/en/reserved.variables.files.php#118294 */ protected function fixFilesArray(array $data): array { $output = []; foreach ($data as $name => $array) { foreach ($array as $field => $value) { $pointer = &$output[$name]; if (! is_array($value)) { $pointer[$field] = $value; continue; } $stack = [&$pointer]; $iterator = new RecursiveIteratorIterator( new RecursiveArrayIterator($value), RecursiveIteratorIterator::SELF_FIRST ); foreach ($iterator as $key => $val) { array_splice($stack, $iterator->getDepth() + 1); $pointer = &$stack[count($stack) - 1]; $pointer = &$pointer[$key]; $stack[] = &$pointer; // RecursiveIteratorIterator::hasChildren() can be used. RecursiveIteratorIterator // forwards all unknown method calls to the underlying RecursiveIterator internally. // See https://github.com/php/doc-en/issues/787#issuecomment-881446121 if (! $iterator->hasChildren()) { $pointer[$field] = $val; } } } } return $output; } /** * Navigate through an array looking for a particular index * * @param array $index The index sequence we are navigating down * @param array $value The portion of the array to process * * @return mixed */ protected function getValueDotNotationSyntax(array $index, array $value) { $currentIndex = array_shift($index); if (isset($currentIndex) && is_array($index) && $index && is_array($value[$currentIndex]) && $value[$currentIndex]) { return $this->getValueDotNotationSyntax($index, $value[$currentIndex]); } return $value[$currentIndex] ?? null; } }