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<?php
/**
* Copyright (c) 2014 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Licensed under the MIT license:
* http://opensource.org/licenses/MIT
*/
namespace Icewind\SMB\Native;
use Icewind\SMB\Exception\Exception;
use Icewind\SMB\Exception\InvalidRequestException;
use Icewind\Streams\File;
use InvalidArgumentException;
abstract class NativeStream implements File {
/**
* @var resource
* @psalm-suppress PropertyNotSetInConstructor
*/
public $context;
/**
* @var NativeState
* @psalm-suppress PropertyNotSetInConstructor
*/
protected $state;
/**
* @var resource
* @psalm-suppress PropertyNotSetInConstructor
*/
protected $handle;
/**
* @var bool
*/
protected $eof = false;
/**
* @var string
*/
protected $url = '';
/**
* Wrap a stream from libsmbclient-php into a regular php stream
*
* @param NativeState $state
* @param resource $smbStream
* @param string $mode
* @param string $url
* @param class-string<NativeStream> $class
* @return resource
*/
protected static function wrapClass(NativeState $state, $smbStream, string $mode, string $url, string $class) {
if (stream_wrapper_register('nativesmb', $class) === false) {
throw new Exception("Failed to register stream wrapper");
}
$context = stream_context_create([
'nativesmb' => [
'state' => $state,
'handle' => $smbStream,
'url' => $url
]
]);
$fh = fopen('nativesmb://', $mode, false, $context);
if (stream_wrapper_unregister('nativesmb') === false) {
throw new Exception("Failed to unregister stream wrapper");
}
return $fh;
}
public function stream_close() {
try {
return $this->state->close($this->handle, $this->url);
} catch (\Exception $e) {
return false;
}
}
public function stream_eof() {
return $this->eof;
}
public function stream_flush() {
return false;
}
public function stream_open($path, $mode, $options, &$opened_path) {
$context = stream_context_get_options($this->context);
if (!isset($context['nativesmb']) || !is_array($context['nativesmb'])) {
throw new InvalidArgumentException("context not set");
}
$state = $context['nativesmb']['state'];
if (!$state instanceof NativeState) {
throw new InvalidArgumentException("invalid context set");
}
$this->state = $state;
$handle = $context['nativesmb']['handle'];
if (!is_resource($handle)) {
throw new InvalidArgumentException("invalid context set");
}
$this->handle = $handle;
$url = $context['nativesmb']['url'];
if (!is_string($url)) {
throw new InvalidArgumentException("invalid context set");
}
$this->url = $url;
return true;
}
public function stream_read($count) {
$result = $this->state->read($this->handle, $count, $this->url);
if (strlen($result) < $count) {
$this->eof = true;
}
return $result;
}
public function stream_seek($offset, $whence = SEEK_SET) {
$this->eof = false;
try {
return $this->state->lseek($this->handle, $offset, $whence, $this->url) !== false;
} catch (InvalidRequestException $e) {
return false;
}
}
/**
* @return array{"mtime": int, "size": int, "mode": int}|false
*/
public function stream_stat() {
try {
return $this->state->stat($this->url);
} catch (Exception $e) {
return false;
}
}
public function stream_tell() {
return $this->state->lseek($this->handle, 0, SEEK_CUR, $this->url);
}
public function stream_write($data) {
return $this->state->write($this->handle, $data, $this->url);
}
public function stream_truncate($size) {
return $this->state->ftruncate($this->handle, $size, $this->url);
}
public function stream_set_option($option, $arg1, $arg2) {
return false;
}
public function stream_lock($operation) {
return false;
}
}
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