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Editing: NativeShare.php

<?php
/**
 * SPDX-FileCopyrightText: 2014 Robin Appelman <robin@icewind.nl>
 * SPDX-License-Identifier: MIT
 */

namespace Icewind\SMB\Native;

use Icewind\SMB\AbstractShare;
use Icewind\SMB\Exception\AlreadyExistsException;
use Icewind\SMB\Exception\AuthenticationException;
use Icewind\SMB\Exception\ConnectionException;
use Icewind\SMB\Exception\DependencyException;
use Icewind\SMB\Exception\InvalidHostException;
use Icewind\SMB\Exception\InvalidPathException;
use Icewind\SMB\Exception\InvalidResourceException;
use Icewind\SMB\Exception\InvalidTypeException;
use Icewind\SMB\Exception\NotFoundException;
use Icewind\SMB\IFileInfo;
use Icewind\SMB\INotifyHandler;
use Icewind\SMB\IServer;
use Icewind\SMB\Wrapped\Server;
use Icewind\SMB\Wrapped\Share;

final class NativeShare extends AbstractShare {
	/**
	 * @var IServer $server
	 */
	private $server;

/**
	 * @var string $name
	 */
	private $name;

/** @var NativeState|null $state */
	private $state = null;

public function __construct(IServer $server, string $name) {
		parent::__construct();
		$this->server = $server;
		$this->name = $name;
	}

/**
	 * @throws ConnectionException
	 * @throws AuthenticationException
	 * @throws InvalidHostException
	 */
	protected function getState(): NativeState {
		if ($this->state) {
			return $this->state;
		}

$this->state = new NativeState();
		$this->state->init($this->server->getAuth(), $this->server->getOptions());
		return $this->state;
	}

/**
	 * Get the name of the share
	 *
	 * @return string
	 */
	public function getName(): string {
		return $this->name;
	}

private function buildUrl(string $path): string {
		$this->verifyPath($path);
		$url = sprintf('smb://%s/%s', $this->server->getHost(), $this->name);
		if ($path) {
			$path = trim($path, '/');
			$url .= '/';
			$url .= implode('/', array_map('rawurlencode', explode('/', $path)));
		}
		return $url;
	}

/**
	 * List the content of a remote folder
	 *
	 * @param string $path
	 * @return IFileInfo[]
	 *
	 * @throws NotFoundException
	 * @throws InvalidTypeException
	 */
	public function dir(string $path): array {
		$files = [];

$dh = $this->getState()->opendir($this->buildUrl($path));
		while ($file = $this->getState()->readdir($dh, $path)) {
			$name = $file['name'];
			if ($name !== '.' and $name !== '..') {
				$fullPath = $path . '/' . $name;
				$files [] = new NativeFileInfo($this, $fullPath, $name);
			}
		}

$this->getState()->closedir($dh, $path);
		return $files;
	}

/**
	 * @param string $path
	 * @return IFileInfo
	 */
	public function stat(string $path): IFileInfo {
		$info = new NativeFileInfo($this, $path, self::mb_basename($path));

// trigger attribute loading
		$info->getSize();

return $info;
	}

/**
	 * @return array{"mode": int, "size": int, "mtime": int}
	 */
	public function rawStat(string $path): array {
		return $this->getState()->stat($this->buildUrl($path));
	}

/**
	 * Multibyte unicode safe version of basename()
	 *
	 * @param string $path
	 * @link http://php.net/manual/en/function.basename.php#121405
	 * @return string
	 */
	protected static function mb_basename(string $path): string {
		if (preg_match('@^.*[\\\\/]([^\\\\/]+)$@s', $path, $matches)) {
			return $matches[1];
		} elseif (preg_match('@^([^\\\\/]+)$@s', $path, $matches)) {
			return $matches[1];
		}

return '';
	}

/**
	 * Create a folder on the share
	 *
	 * @param string $path
	 * @return bool
	 *
	 * @throws NotFoundException
	 * @throws AlreadyExistsException
	 */
	public function mkdir(string $path): bool {
		return $this->getState()->mkdir($this->buildUrl($path));
	}

/**
	 * Remove a folder on the share
	 *
	 * @param string $path
	 * @return bool
	 *
	 * @throws NotFoundException
	 * @throws InvalidTypeException
	 */
	public function rmdir(string $path): bool {
		return $this->getState()->rmdir($this->buildUrl($path));
	}

/**
	 * Delete a file on the share
	 *
	 * @param string $path
	 * @return bool
	 *
	 * @throws NotFoundException
	 * @throws InvalidTypeException
	 */
	public function del(string $path): bool {
		return $this->getState()->unlink($this->buildUrl($path));
	}

/**
	 * Rename a remote file
	 *
	 * @param string $from
	 * @param string $to
	 * @return bool
	 *
	 * @throws NotFoundException
	 * @throws AlreadyExistsException
	 */
	public function rename(string $from, string $to): bool {
		return $this->getState()->rename($this->buildUrl($from), $this->buildUrl($to));
	}

/**
	 * Upload a local file
	 *
	 * @param string $source local file
	 * @param string $target remove file
	 * @return bool
	 *
	 * @throws NotFoundException
	 * @throws InvalidTypeException
	 */
	public function put(string $source, string $target): bool {
		$sourceHandle = fopen($source, 'rb');
		if (!$sourceHandle) {
			return false;
		}
		$targetUrl = $this->buildUrl($target);

$targetHandle = $this->getState()->create($targetUrl);

while ($data = fread($sourceHandle, NativeReadStream::CHUNK_SIZE)) {
			$this->getState()->write($targetHandle, $data, $targetUrl);
		}
		$this->getState()->close($targetHandle, $targetUrl);
		return true;
	}

/**
	 * Download a remote file
	 *
	 * @param string $source remove file
	 * @param string $target local file
	 * @return bool
	 *
	 * @throws AuthenticationException
	 * @throws ConnectionException
	 * @throws InvalidHostException
	 * @throws InvalidPathException
	 * @throws InvalidResourceException
	 */
	public function get(string $source, string $target): bool {
		if (!$target) {
			throw new InvalidPathException('Invalid target path: Filename cannot be empty');
		}

$sourceHandle = $this->getState()->open($this->buildUrl($source), 'r');

$targetHandle = @fopen($target, 'wb');
		if (!$targetHandle) {
			$error = error_get_last();
			if (is_array($error)) {
				$reason = $error['message'];
			} else {
				$reason = 'Unknown error';
			}
			$this->getState()->close($sourceHandle, $this->buildUrl($source));
			throw new InvalidResourceException('Failed opening local file "' . $target . '" for writing: ' . $reason);
		}

while ($data = $this->getState()->read($sourceHandle, NativeReadStream::CHUNK_SIZE, $source)) {
			fwrite($targetHandle, $data);
		}
		$this->getState()->close($sourceHandle, $this->buildUrl($source));
		return true;
	}

/**
	 * Open a readable stream to a remote file
	 *
	 * @param string $source
	 * @return resource a read only stream with the contents of the remote file
	 *
	 * @throws NotFoundException
	 * @throws InvalidTypeException
	 */
	public function read(string $source) {
		$url = $this->buildUrl($source);
		$handle = $this->getState()->open($url, 'r');
		return NativeReadStream::wrap($this->getState(), $handle, 'r', $url);
	}

/**
	 * Open a writeable stream to a remote file
	 * Note: This method will truncate the file to 0bytes first
	 *
	 * @param string $target
	 * @return resource a writeable stream
	 *
	 * @throws NotFoundException
	 * @throws InvalidTypeException
	 */
	public function write(string $target) {
		$url = $this->buildUrl($target);
		$handle = $this->getState()->create($url);
		return NativeWriteStream::wrap($this->getState(), $handle, 'w', $url);
	}

/**
	 * Open a writeable stream and set the cursor to the end of the stream
	 *
	 * @param string $target
	 * @return resource a writeable stream
	 *
	 * @throws NotFoundException
	 * @throws InvalidTypeException
	 */
	public function append(string $target) {
		$url = $this->buildUrl($target);
		$handle = $this->getState()->open($url, "a+");
		return NativeWriteStream::wrap($this->getState(), $handle, "a", $url);
	}

/**
	 * Get extended attributes for the path
	 *
	 * @param string $path
	 * @param string $attribute attribute to get the info
	 * @return string the attribute value
	 */
	public function getAttribute(string $path, string $attribute): string {
		return $this->getState()->getxattr($this->buildUrl($path), $attribute);
	}

/**
	 * Set extended attributes for the given path
	 *
	 * @param string $path
	 * @param string $attribute attribute to get the info
	 * @param string|int $value
	 * @return mixed the attribute value
	 */
	public function setAttribute(string $path, string $attribute, $value) {
		if (is_int($value)) {
			if ($attribute === 'system.dos_attr.mode') {
				$value = '0x' . dechex($value);
			} else {
				throw new \InvalidArgumentException("Invalid value for attribute");
			}
		}

return $this->getState()->setxattr($this->buildUrl($path), $attribute, $value);
	}

/**
	 * Set DOS comaptible node mode
	 *
	 * @param string $path
	 * @param int $mode a combination of FileInfo::MODE_READONLY, FileInfo::MODE_ARCHIVE, FileInfo::MODE_SYSTEM and FileInfo::MODE_HIDDEN, FileInfo::NORMAL
	 * @return mixed
	 */
	public function setMode(string $path, int $mode) {
		return $this->setAttribute($path, 'system.dos_attr.mode', $mode);
	}

/**
	 * Start smb notify listener
	 * Note: This is a blocking call
	 *
	 * @param string $path
	 * @return INotifyHandler
	 */
	public function notify(string $path): INotifyHandler {
		// php-smbclient does not support notify (https://github.com/eduardok/libsmbclient-php/issues/29)
		// so we use the smbclient based backend for this
		if (!Server::available($this->server->getSystem())) {
			throw new DependencyException('smbclient not found in path for notify command');
		}
		$share = new Share($this->server, $this->getName(), $this->server->getSystem());
		return $share->notify($path);
	}

public function getServer(): IServer {
		return $this->server;
	}

public function __destruct() {
		unset($this->state);
	}
}

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