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php-path/src/WindowsPath.php

105 lines
3.3 KiB

<?php
declare(strict_types=1);
namespace Arokettu\Path;
use Arokettu\Path\Helpers\DataTypeHelper;
final class WindowsPath extends FilesystemPath
{
public static function parse(string $path, bool $strict = false): self
{
return new self($path, $strict);
}
protected function parsePath(string $path, bool $strict): void
{
if (preg_match('@^[A-Za-z]:[\\\\/]@', $path, $matches)) {
// DOS path
$prefix = ucfirst($matches[0]); // uppercase drive letter
$restOfPath = substr($path, \strlen($prefix));
$this->parseDOS($prefix, $restOfPath, $strict);
} elseif (preg_match('@^\\\\\\\\[.?]\\\\([^\\\\/]+)\\\\@', $path, $matches)) {
// UNC local volume
$prefix = $matches[0];
// if the volume is a drive letter, uppercase it
if (preg_match('/^[a-zA-Z]:$/', $matches[1])) {
// \\?\C:\
$prefix[4] = strtoupper($prefix[4]);
}
$restOfPath = substr($path, \strlen($prefix));
$this->parseUNC($prefix, $restOfPath);
} elseif (preg_match('@^\\\\\\\\[^.?\\\\/][^\\\\/]*\\\\|\\\\\\\\[.?][^\\\\/][^\\\\/]+\\\\@', $path, $matches)) {
$prefix = $matches[0];
$restOfPath = substr($path, \strlen($prefix));
$this->parseUNC($prefix, $restOfPath);
} else {
throw new \InvalidArgumentException('Unrecognized Windows path');
}
}
private function parseDOS(string $prefix, string $restOfPath, bool $strict): void
{
// forward slash is also a valid path separator in DOS paths
// just also parse backslashes
$components = explode('/', $restOfPath);
$components = array_merge(
...array_map(fn ($a) => explode('\\', $a), $components)
);
$parsedComponents = $this->normalize($components);
if ($parsedComponents->count() > 0 && $parsedComponents[0] === '..') {
if ($strict) {
throw new \InvalidArgumentException('Path went beyond root');
}
do {
$parsedComponents->shift();
} while ($parsedComponents[0] === '..');
}
// normalize prefix: use backslash
$this->prefix = strtr($prefix, ['/' => '\\']);
$this->components = $parsedComponents;
}
// no $strict param, UNC is always strict
private function parseUNC(string $prefix, string $restOfPath): void
{
if (str_contains($restOfPath, '/')) {
throw new \InvalidArgumentException('Slashes are not allowed in UNC paths');
}
$components = explode('\\', $restOfPath);
foreach ($components as $component) {
if ($component === '.' || $component === '..') {
throw new \InvalidArgumentException('. and .. are not allowed in UNC paths');
}
}
$this->prefix = $prefix;
$this->components = DataTypeHelper::iterableToNewListInstance($components);
}
public function toString(): string
{
return $this->prefix . \iter\join('\\', $this->components);
}
protected function buildRelative(\SplDoublyLinkedList $components): RelativePathInterface
{
$path = new RelativePath('.', true);
$path->components = $components;
return $path;
}
}