Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
namespace Friendica\Util;
/**
* Util class for filesystem manipulation
*/
final class FileSystem
{
/**
* @var string a error message
*/
private $errorMessage;
/**
* Creates a directory based on a file, which gets accessed
*
* @param string $file The file
*
* @return string The directory name (empty if no directory is found, like urls)
*/
public function createDir(string $file)
{
$dirname = null;
$pos = strpos($file, '://');
if (!$pos) {
$dirname = realpath(dirname($file));
}
if (substr($file, 0, 7) === 'file://') {
$dirname = realpath(dirname(substr($file, 7)));
}
if (isset($dirname) && !is_dir($dirname)) {
set_error_handler([$this, 'customErrorHandler']);
$status = mkdir($dirname, 0777, true);
restore_error_handler();
if (!$status && !is_dir($dirname)) {
throw new \UnexpectedValueException(sprintf('Directory "%s" cannot get created: ' . $this->errorMessage, $dirname));
}
return $dirname;
} elseif (isset($dirname) && is_dir($dirname)) {
return $dirname;
} else {
return '';
}
}
/**
* Creates a stream based on a URL (could be a local file or a real URL)
*
* @param string $url The file/url
*
* @return false|resource the open stream ressource
*/
public function createStream(string $url)
{
$directory = $this->createDir($url);
set_error_handler([$this, 'customErrorHandler']);
if (!empty($directory)) {
$url = $directory . DIRECTORY_SEPARATOR . pathinfo($url, PATHINFO_BASENAME);
}
$stream = fopen($url, 'ab');
restore_error_handler();
if (!is_resource($stream)) {
throw new \UnexpectedValueException(sprintf('The stream or file "%s" could not be opened: ' . $this->errorMessage, $url));
}
return $stream;
}
private function customErrorHandler($code, $msg)
{
$this->errorMessage = preg_replace('{^(fopen|mkdir)\(.*?\): }', '', $msg);
}
}