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paulgoughbooks_old / trunk / system / HTTP / Files / FileCollection.php
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<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014-2019 British Columbia Institute of Technology * Copyright (c) 2019-2020 CodeIgniter Foundation * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @package CodeIgniter * @author CodeIgniter Dev Team * @copyright 2019-2020 CodeIgniter Foundation * @license https://opensource.org/licenses/MIT MIT License * @link https://codeigniter.com * @since Version 4.0.0 * @filesource */ namespace CodeIgniter\HTTP\Files; /** * Class FileCollection * * Provides easy access to uploaded files for a request. * * @package CodeIgniter\HTTP\Files */ 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. * * @param string $name * * @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. * * @param string $name * * @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[0] instanceof UploadedFile)) ? $uploadedFile : null; } if (array_key_exists($name, $this->files)) { $uploadedFile = $this->files[$name]; return (is_array($uploadedFile) && ($uploadedFile[0] 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) * * @return boolean */ 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. * * @param array $array * * @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 * * @param array $data * * @return array */ 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; if (! $iterator->hasChildren()) { $pointer[$field] = $val; } } } } return $output; } //-------------------------------------------------------------------- /** * Navigate through a 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 $value) { if (! empty($index)) { $current_index = array_shift($index); } if (is_array($index) && $index && is_array($value[$current_index]) && $value[$current_index]) { return $this->getValueDotNotationSyntax($index, $value[$current_index]); } return (isset($value[$current_index])) ? $value[$current_index] : null; } } |
Commits for paulgoughbooks_old/trunk/system/HTTP/Files/FileCollection.php
Revision | Author | Commited | Message |
---|---|---|---|
2 | tporter | Tue 03 Nov, 2020 08:50:21 +0000 | Migration of Paul Goughs Books site to Codeignitor 4 |