95 lines
2.3 KiB
PHP
95 lines
2.3 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file is part of the Symfony package.
|
||
|
|
*
|
||
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
||
|
|
*
|
||
|
|
* For the full copyright and license information, please view the LICENSE
|
||
|
|
* file that was distributed with this source code.
|
||
|
|
*/
|
||
|
|
|
||
|
|
namespace Symfony\Component\Config;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* FileLocator uses an array of pre-defined paths to find files.
|
||
|
|
*
|
||
|
|
* @author Fabien Potencier <fabien@symfony.com>
|
||
|
|
*/
|
||
|
|
class FileLocator implements FileLocatorInterface
|
||
|
|
{
|
||
|
|
protected $paths;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param string|array $paths A path or an array of paths where to look for resources
|
||
|
|
*/
|
||
|
|
public function __construct($paths = array())
|
||
|
|
{
|
||
|
|
$this->paths = (array) $paths;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritdoc}
|
||
|
|
*/
|
||
|
|
public function locate($name, $currentPath = null, $first = true)
|
||
|
|
{
|
||
|
|
if ('' == $name) {
|
||
|
|
throw new \InvalidArgumentException('An empty file name is not valid to be located.');
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->isAbsolutePath($name)) {
|
||
|
|
if (!file_exists($name)) {
|
||
|
|
throw new \InvalidArgumentException(sprintf('The file "%s" does not exist.', $name));
|
||
|
|
}
|
||
|
|
|
||
|
|
return $name;
|
||
|
|
}
|
||
|
|
|
||
|
|
$paths = $this->paths;
|
||
|
|
|
||
|
|
if (null !== $currentPath) {
|
||
|
|
array_unshift($paths, $currentPath);
|
||
|
|
}
|
||
|
|
|
||
|
|
$paths = array_unique($paths);
|
||
|
|
$filepaths = array();
|
||
|
|
|
||
|
|
foreach ($paths as $path) {
|
||
|
|
if (@file_exists($file = $path.\DIRECTORY_SEPARATOR.$name)) {
|
||
|
|
if (true === $first) {
|
||
|
|
return $file;
|
||
|
|
}
|
||
|
|
$filepaths[] = $file;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$filepaths) {
|
||
|
|
throw new \InvalidArgumentException(sprintf('The file "%s" does not exist (in: %s).', $name, implode(', ', $paths)));
|
||
|
|
}
|
||
|
|
|
||
|
|
return $filepaths;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns whether the file path is an absolute path.
|
||
|
|
*
|
||
|
|
* @param string $file A file path
|
||
|
|
*
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
private function isAbsolutePath($file)
|
||
|
|
{
|
||
|
|
if ('/' === $file[0] || '\\' === $file[0]
|
||
|
|
|| (\strlen($file) > 3 && ctype_alpha($file[0])
|
||
|
|
&& ':' === $file[1]
|
||
|
|
&& ('\\' === $file[2] || '/' === $file[2])
|
||
|
|
)
|
||
|
|
|| null !== parse_url($file, PHP_URL_SCHEME)
|
||
|
|
) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|