100 lines
2.6 KiB
PHP
100 lines
2.6 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2020, Friendica
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Util;
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/**
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* Util class for filesystem manipulation
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*/
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class FileSystem
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{
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/**
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* @var string a error message
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*/
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private $errorMessage;
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/**
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* Creates a directory based on a file, which gets accessed
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*
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* @param string $file The file
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*
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* @return string The directory name (empty if no directory is found, like urls)
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*/
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public function createDir(string $file)
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{
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$dirname = null;
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$pos = strpos($file, '://');
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if (!$pos) {
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$dirname = realpath(dirname($file));
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}
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if (substr($file, 0, 7) === 'file://') {
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$dirname = realpath(dirname(substr($file, 7)));
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}
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if (isset($dirname) && !is_dir($dirname)) {
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set_error_handler([$this, 'customErrorHandler']);
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$status = mkdir($dirname, 0777, true);
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restore_error_handler();
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if (!$status && !is_dir($dirname)) {
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throw new \UnexpectedValueException(sprintf('Directory "%s" cannot get created: ' . $this->errorMessage, $dirname));
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}
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return $dirname;
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} elseif (isset($dirname) && is_dir($dirname)) {
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return $dirname;
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} else {
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return '';
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}
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}
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/**
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* Creates a stream based on a URL (could be a local file or a real URL)
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*
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* @param string $url The file/url
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*
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* @return false|resource the open stream ressource
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*/
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public function createStream(string $url)
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{
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$directory = $this->createDir($url);
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set_error_handler([$this, 'customErrorHandler']);
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if (!empty($directory)) {
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$url = $directory . DIRECTORY_SEPARATOR . pathinfo($url, PATHINFO_BASENAME);
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}
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$stream = fopen($url, 'ab');
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restore_error_handler();
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if (!is_resource($stream)) {
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throw new \UnexpectedValueException(sprintf('The stream or file "%s" could not be opened: ' . $this->errorMessage, $url));
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}
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return $stream;
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}
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private function customErrorHandler($code, $msg)
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{
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$this->errorMessage = preg_replace('{^(fopen|mkdir)\(.*?\): }', '', $msg);
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}
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}
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