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<?php
namespace Barryvdh\elFinderFlysystemDriver;
use elFinderVolumeDriver;
use Intervention\Image\ImageManager;
use League\Flysystem\Cached\CachedAdapter;
use League\Flysystem\Cached\CacheInterface;
use League\Flysystem\Filesystem;
use League\Flysystem\Util;
use League\Flysystem\FilesystemInterface;
use League\Flysystem\Cached\Storage\Memory as MemoryStore;
use League\Glide\Urls\UrlBuilderFactory;
use Barryvdh\elFinderFlysystemDriver\Plugin\GetUrl;
use Barryvdh\elFinderFlysystemDriver\Cache\SessionStore;
/**
* elFinder driver for Flysytem (https://github.com/thephpleague/flysystem)
*
* @author Barry vd. Heuvel
* */
class Driver extends elFinderVolumeDriver
{
/**
* Driver id
* Must be started from letter and contains [a-z0-9]
* Used as part of volume id
*
* @var string
**/
protected $driverId = 'fls';
/** @var FilesystemInterface $fs */
protected $fs;
/** @var CacheInterface $fs */
protected $fscache;
/** @var UrlBuilder $urlBuilder */
protected $urlBuilder = null;
/** @var ImageManager $imageManager */
protected $imageManager = null;
/**
* Constructor
* Extend options with required fields
*
**/
public function __construct()
{
$opts = array(
'filesystem' => null,
'glideURL' => null,
'glideKey' => null,
'imageManager' => null,
'cache' => 'session', // 'session', 'memory' or false
'fscache' => null, // The Flysystem cache
'checkSubfolders' => false, // Disable for performance
);
$this->options = array_merge($this->options, $opts);
}
public function mount(array $opts)
{
// If path is not set, use the root
if (!isset($opts['path']) || $opts['path'] === '') {
$opts['path'] = '/';
}
return parent::mount($opts);
}
protected function clearcache()
{
parent::clearcache();
// clear cached adapter cache
if ($this->fscache) {
$this->fscache->flush();
}
}
/**
* Find the icon based on the used Adapter
*
* @return string
*/
protected function getIcon()
{
try {
$adapter = $this->fs->getAdapter();
} catch (\Exception $e) {
$adapter = null;
}
if ($adapter instanceof CachedAdapter) {
$adapter = $adapter->getAdapter();
}
if ($adapter instanceof League\Flysystem\Adapter\AbstractFtpAdapter) {
$icon = 'volume_icon_ftp.png';
} elseif ($adapter instanceof League\Flysystem\Dropbox\DropboxAdapter) {
$icon = 'volume_icon_dropbox.png';
} else {
$icon = 'volume_icon_local.png';
}
$parentUrl = defined('ELFINDER_IMG_PARENT_URL') ? (rtrim(ELFINDER_IMG_PARENT_URL, '/') . '/') : '';
return $parentUrl . 'img/' . $icon;
}
/**
* Prepare driver before mount volume.
* Return true if volume is ready.
*
* @return bool
**/
protected function init()
{
$this->fs = $this->options['filesystem'];
if (!($this->fs instanceof FilesystemInterface)) {
return $this->setError('A filesystem instance is required');
}
if ($this->fs instanceof Filesystem) {
$adapter = $this->fs->getAdapter();
// If the Flysystem adapter already is a cache, try to determine the cache.
if ($adapter instanceof CachedAdapter) {
// Try to get the cache (method doesn't exist in all versions)
if (method_exists($adapter, 'getCache')) {
$this->fscache = $adapter->getCache();
} elseif ($this->options['fscache'] instanceof CacheInterface) {
$this->fscache = $this->options['fscache'];
}
} elseif ($this->options['cache']) {
switch ($this->options['cache']) {
case 'session':
$this->fscache = new SessionStore($this->session, 'fls_cache_' . $this->id);
break;
case 'memory':
$this->fscache = new MemoryStore();
break;
}
if ($this->fscache) {
$adapter = new CachedAdapter($adapter, $this->fscache);
$this->fs = new Filesystem($adapter);
}
}
}
$this->fs->addPlugin(new GetUrl());
$this->options['icon'] = $this->options['icon'] ?: (empty($this->options['rootCssClass'])? $this->getIcon() : '');
$this->root = $this->options['path'];
if ($this->options['glideURL']) {
$this->urlBuilder = UrlBuilderFactory::create($this->options['glideURL'], $this->options['glideKey']);
}
if ($this->options['imageManager']) {
$this->imageManager = $this->options['imageManager'];
} else {
$this->imageManager = new ImageManager();
}
return true;
}
/**
* Configure after successful mount.
*
* @return void
**/
protected function configure()
{
parent::configure();
if ($this->fscache && $this->isMyReload()) {
$this->fscache->flush();
}
}
/**
* Return parent directory path
*
* @param string $path file path
* @return string
**/
protected function _dirname($path)
{
return Util::dirname($path) ?: '/';
}
/**
* Return normalized path
*
* @param string $path path
* @return string
**/
protected function _normpath($path)
{
return $path;
}
/**
* Check if the directory exists in the parent directory. Needed because not all drives handle directories correctly.
*
* @param string $path path
* @return boolean
**/
protected function _dirExists($path)
{
$dir = $this->_dirname($path);
$basename = basename($path);
foreach ($this->fs->listContents($dir) as $meta) {
if ($meta && $meta['type'] !== 'file' && $meta['basename'] == $basename) {
return true;
}
}
return false;
}
/**
* Return stat for given path.
* Stat contains following fields:
* - (int) size file size in b. required
* - (int) ts file modification time in unix time. required
* - (string) mime mimetype. required for folders, others - optionally
* - (bool) read read permissions. required
* - (bool) write write permissions. required
* - (bool) locked is object locked. optionally
* - (bool) hidden is object hidden. optionally
* - (string) alias for symlinks - link target path relative to root path. optionally
* - (string) target for symlinks - link target path. optionally
*
* If file does not exists - returns empty array or false.
*
* @param string $path file path
* @return array|false
**/
protected function _stat($path)
{
$stat = array(
'size' => 0,
'ts' => time(),
'read' => true,
'write' => true,
'locked' => false,
'hidden' => false,
'mime' => 'directory',
);
// If root, just return from above
if ($this->root == $path) {
$stat['name'] = $this->root;
return $stat;
}
// If not exists, return empty
if (!$this->fs->has($path)) {
// Check if the parent doesn't have this path
if ($this->_dirExists($path)) {
return $stat;
}
// Neither a file or directory exist, return empty
return array();
}
try {
$meta = $this->fs->getMetadata($path);
} catch (\Exception $e) {
return array();
}
if(false === $meta) {
return $stat;
}
// Set item filename.extension to `name` if exists
if (isset($meta['filename']) && isset($meta['extension'])) {
$stat['name'] = $meta['filename'];
if ($meta['extension'] !== '') {
$stat['name'] .= '.' . $meta['extension'];
}
}
// Get timestamp/size if available
if (isset($meta['timestamp'])) {
$stat['ts'] = $meta['timestamp'];
}
if (isset($meta['size'])) {
$stat['size'] = $meta['size'];
}
// Check if file, if so, check mimetype when available
if ($meta['type'] == 'file') {
if(isset($meta['mimetype'])) {
$stat['mime'] = $meta['mimetype'];
} else {
$stat['mime'] = $this->fs->getMimetype($path);
}
$imgMimes = ['image/jpeg', 'image/png', 'image/gif'];
if ($this->urlBuilder && in_array($stat['mime'], $imgMimes)) {
$stat['url'] = $this->urlBuilder->getUrl($path, [
'ts' => $stat['ts']
]);
$stat['tmb'] = $this->urlBuilder->getUrl($path, [
'ts' => $stat['ts'],
'w' => $this->tmbSize,
'h' => $this->tmbSize,
'fit' => $this->options['tmbCrop'] ? 'crop' : 'contain',
]);
}
}
if (!isset($stat['url']) && $this->fs->getUrl()) {
$stat['url'] = 1;
}
return $stat;
}
/***************** file stat ********************/
/**
* Return true if path is dir and has at least one childs directory
*
* @param string $path dir path
* @return bool
**/
protected function _subdirs($path)
{
$contents = $this->fs->listContents($path);
$filter = function ($item) {
return $item['type'] == 'dir';
};
$dirs = array_filter($contents, $filter);
return !empty($dirs);
}
/**
* Return object width and height
* Usually used for images, but can be realize for video etc...
*
* @param string $path file path
* @param string $mime file mime type
* @return string
**/
protected function _dimensions($path, $mime)
{
$ret = false;
if ($imgsize = $this->getImageSize($path, $mime)) {
$ret = $imgsize['dimensions'];
}
return $ret;
}
/******************** file/dir content *********************/
/**
* Return files list in directory
*
* @param string $path dir path
* @return array
**/
protected function _scandir($path)
{
$paths = array();
foreach ($this->fs->listContents($path, false) as $object) {
if ($object) {
$paths[] = $object['path'];
}
}
return $paths;
}
/**
* Open file and return file pointer
*
* @param string $path file path
* @param string $mode
* @return resource|false
**/
protected function _fopen($path, $mode = "rb")
{
return $this->fs->readStream($path);
}
/**
* Close opened file
*
* @param resource $fp file pointer
* @param string $path file path
* @return bool
**/
protected function _fclose($fp, $path = '')
{
return @fclose($fp);
}
/******************** file/dir manipulations *************************/
/**
* Create dir and return created dir path or false on failed
*
* @param string $path parent dir path
* @param string $name new directory name
* @return string|bool
**/
protected function _mkdir($path, $name)
{
$path = $this->_joinPath($path, $name);
if ($this->fs->createDir($path) === false) {
return false;
}
return $path;
}
/**
* Create file and return it's path or false on failed
*
* @param string $path parent dir path
* @param string $name new file name
* @return string|bool
**/
protected function _mkfile($path, $name)
{
$path = $this->_joinPath($path, $name);
if ($this->fs->write($path, '') === false) {
return false;
}
return $path;
}
/**
* Copy file into another file
*
* @param string $source source file path
* @param string $target target directory path
* @param string $name new file name
* @return string|bool
**/
protected function _copy($source, $target, $name)
{
$path = $this->_joinPath($target, $name);
if ($this->fs->copy($source, $path) === false) {
return false;
}
return $path;
}
/**
* Move file into another parent dir.
* Return new file path or false.
*
* @param string $source source file path
* @param string $target target dir path
* @param string $name file name
* @return string|bool
**/
protected function _move($source, $target, $name)
{
$path = $this->_joinPath($target, $name);
if ($this->fs->rename($source, $path) === false) {
return false;
}
return $path;
}
/**
* Remove file
*
* @param string $path file path
* @return bool
**/
protected function _unlink($path)
{
return $this->fs->delete($path);
}
/**
* Remove dir
*
* @param string $path dir path
* @return bool
**/
protected function _rmdir($path)
{
return $this->fs->deleteDir($path);
}
/**
* Create new file and write into it from file pointer.
* Return new file path or false on error.
*
* @param resource $fp file pointer
* @param string $dir target dir path
* @param string $name file name
* @param array $stat file stat (required by some virtual fs)
* @return bool|string
**/
protected function _save($fp, $dir, $name, $stat)
{
$path = $this->_joinPath($dir, $name);
$ext = strtolower(pathinfo($path, PATHINFO_EXTENSION));
$config = [];
if (isset(self::$mimetypes[$ext])) {
$config['mimetype'] = self::$mimetypes[$ext];
}
if ($this->fs->putStream($path, $fp, $config) === false) {
return false;
}
return $path;
}
/**
* Get file contents
*
* @param string $path file path
* @return string|false
**/
protected function _getContents($path)
{
return $this->fs->read($path);
}
/**
* Write a string to a file
*
* @param string $path file path
* @param string $content new file content
* @return bool
**/
protected function _filePutContents($path, $content)
{
return $this->fs->put($path, $content);
}
/*********************** paths/urls *************************/
/**
* Return file name
*
* @param string $path file path
* @return string
* @author Dmitry (dio) Levashov
**/
protected function _basename($path)
{
return basename($path);
}
/**
* Join dir name and file name and return full path
*
* @param string $dir
* @param string $name
* @return string
* @author Dmitry (dio) Levashov
**/
protected function _joinPath($dir, $name)
{
return Util::normalizePath($dir . $this->separator . $name);
}
/**
* Return file path related to root dir
*
* @param string $path file path
* @return string
**/
protected function _relpath($path)
{
return $path;
}
/**
* Convert path related to root dir into real path
*
* @param string $path file path
* @return string
**/
protected function _abspath($path)
{
return $path;
}
/**
* Return fake path started from root dir
*
* @param string $path file path
* @return string
**/
protected function _path($path)
{
return $this->rootName . $this->separator . $path;
}
/**
* Return true if $path is children of $parent
*
* @param string $path path to check
* @param string $parent parent path
* @return bool
* @author Dmitry (dio) Levashov
**/
protected function _inpath($path, $parent)
{
return $path == $parent || strpos($path, $parent . '/') === 0;
}
/**
* Create symlink
*
* @param string $source file to link to
* @param string $targetDir folder to create link in
* @param string $name symlink name
* @return bool
**/
protected function _symlink($source, $targetDir, $name)
{
return false;
}
/**
* Extract files from archive
*
* @param string $path file path
* @param array $arc archiver options
* @return bool
**/
protected function _extract($path, $arc)
{
return false;
}
/**
* Create archive and return its path
*
* @param string $dir target dir
* @param array $files files names list
* @param string $name archive name
* @param array $arc archiver options
* @return string|bool
**/
protected function _archive($dir, $files, $name, $arc)
{
return false;
}
/**
* Detect available archivers
*
* @return void
**/
protected function _checkArchivers()
{
return;
}
/**
* chmod implementation
*
* @return bool
**/
protected function _chmod($path, $mode)
{
return false;
}
/**
* Resize image
*
* @param string $hash image file
* @param int $width new width
* @param int $height new height
* @param int $x X start poistion for crop
* @param int $y Y start poistion for crop
* @param string $mode action how to mainpulate image
* @param string $bg background color
* @param int $degree rotete degree
* @param int $jpgQuality JEPG quality (1-100)
* @return array|false
* @author Dmitry (dio) Levashov
* @author Alexey Sukhotin
* @author nao-pon
* @author Troex Nevelin
**/
public function resize($hash, $width, $height, $x, $y, $mode = 'resize', $bg = '', $degree = 0, $jpgQuality = null)
{
if ($this->commandDisabled('resize')) {
return $this->setError(elFinder::ERROR_PERM_DENIED);
}
if (($file = $this->file($hash)) == false) {
return $this->setError(elFinder::ERROR_FILE_NOT_FOUND);
}
if (!$file['write'] || !$file['read']) {
return $this->setError(elFinder::ERROR_PERM_DENIED);
}
$path = $this->decode($hash);
if (!$this->canResize($path, $file)) {
return $this->setError(elFinder::ERROR_UNSUPPORT_TYPE);
}
if (!$image = $this->imageManager->make($this->_getContents($path))) {
return false;
}
switch ($mode) {
case 'propresize':
$image->resize($width, $height, function ($constraint) {
$constraint->aspectRatio();
});
break;
case 'crop':
$image->crop($width, $height, $x, $y);
break;
case 'fitsquare':
$image->fit($width, $height, null, 'center');
break;
case 'rotate':
$image->rotate($degree);
break;
default:
$image->resize($width, $height);
break;
}
if ($jpgQuality && $image->mime() === 'image/jpeg') {
$result = (string)$image->encode('jpg', $jpgQuality);
} else {
$result = (string)$image->encode();
}
if ($result && $this->_filePutContents($path, $result)) {
$this->rmTmb($file);
$this->clearstatcache();
$stat = $this->stat($path);
$stat['width'] = $image->width();
$stat['height'] = $image->height();
return $stat;
}
return false;
}
public function getImageSize($path, $mime = '')
{
$size = false;
if ($mime === '' || strtolower(substr($mime, 0, 5)) === 'image') {
if ($data = $this->_getContents($path)) {
if ($size = @getimagesizefromstring($data)) {
$size['dimensions'] = $size[0] . 'x' . $size[1];
}
}
}
return $size;
}
/**
* Return content URL
*
* @param string $hash file hash
* @param array $options options
* @return string
**/
public function getContentUrl($hash, $options = array())
{
if (($file = $this->file($hash)) == false || !isset($file['url']) || !$file['url'] || $file['url'] == 1) {
$path = $this->decode($hash);
return $this->fs->getUrl($path);
}
return $file['url'];
}
}