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<?php |
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/** |
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* @license MIT |
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*/ |
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namespace Pivasic\Bundle\Common\File; |
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/** |
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* Class FileBag |
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* @package Pivasic\Bundle\Common\File |
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*/ |
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class FileBag |
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{ |
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/** |
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* Initialize bag from $_FILES. |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public function __construct() |
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{ |
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$this->bag = []; |
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foreach ($_FILES as $key => $file) { |
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if (!is_array($file) && !$file instanceof FileUpload) { |
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throw new \InvalidArgumentException('An uploaded file must be an array or an instance of FileUpload.'); |
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} |
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$this->bag[$key] = $this->convertFileInformation($file); |
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} |
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} |
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/** |
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* Returns true if the FILE parameter is defined. |
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* |
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* @param string $key |
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* |
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* @return bool |
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*/ |
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public function has($key) |
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{ |
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return array_key_exists($key, $this->bag); |
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} |
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/** |
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* An array of parameter names. |
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* |
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* @return array |
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*/ |
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public function keys() |
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{ |
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return array_keys($this->bag); |
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} |
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/** |
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* Get value by parameter name. |
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* |
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* @param string $key |
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* @param mixed|null $default The default value if parameter does not exist |
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* |
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* @return FileUpload|array|null |
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*/ |
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public function fetch($key, $default = null) |
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{ |
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return $this->bag[$key] ?? $default; |
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} |
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/** |
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* Converts uploaded files to FileUpload instances. |
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* |
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* @param array|FileUpload $file A (multi-dimensional) array of uploaded file information |
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* |
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* @return array A (multi-dimensional) array of FileUpload instances |
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*/ |
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private function convertFileInformation($file) |
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{ |
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if ($file instanceof FileUpload) { |
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return $file; |
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} |
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$file = $this->fixPhpFilesArray($file); |
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if (is_array($file)) { |
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$keys = array_keys($file); |
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sort($keys); |
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if ($keys == ['error', 'name', 'size', 'tmp_name', 'type']) { |
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if (UPLOAD_ERR_NO_FILE == $file['error']) { |
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$file = null; |
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} else { |
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$file = new FileUpload($file['tmp_name'], $file['name'], $file['size'], $file['type'], $file['error']); |
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} |
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} else { |
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$file = array_map([$this, 'convertFileInformation'], $file); |
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} |
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} |
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return $file; |
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} |
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/** |
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* Fixes a malformed PHP $_FILES array. |
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* |
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* PHP has a bug that the format of the $_FILES array differs, depending on |
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* whether the uploaded file fields had normal field names or array-like |
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* field names ("normal" vs. "parent[child]"). |
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* |
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* This method fixes the array to look like the "normal" $_FILES array. |
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* |
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* It's safe to pass an already converted array, in which case this method |
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* just returns the original array unmodified. |
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* |
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* @param array $data |
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* |
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* @return array |
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*/ |
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private function fixPhpFilesArray($data) |
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{ |
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if (!is_array($data)) { |
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return $data; |
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} |
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$keys = array_keys($data); |
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sort($keys); |
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if (['error', 'name', 'size', 'tmp_name', 'type'] != $keys || !isset($data['name']) || !is_array($data['name'])) { |
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return $data; |
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} |
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$files = $data; |
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foreach (['error', 'name', 'size', 'tmp_name', 'type'] as $k) { |
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unset($files[$k]); |
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} |
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foreach ($data['name'] as $key => $name) { |
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$files[$key] = $this->fixPhpFilesArray(array( |
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'error' => $data['error'][$key], |
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'name' => $name, |
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'type' => $data['type'][$key], |
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'tmp_name' => $data['tmp_name'][$key], |
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'size' => $data['size'][$key], |
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)); |
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} |
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return $files; |
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} |
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private $bag; |
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} |
dspbee /
pivasic
