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<?php
/**
* PermissionEnabledFolder.php
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* @author André Noack <noack@data-quest.de>
* @copyright 2016 Stud.IP Core-Group
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
*/
class PermissionEnabledFolder extends StandardFolder
{
protected $permission = 7;
protected $perms = ['x' => 1, 'w' => 2, 'r' => 4, 'f' => 8];
protected $must_have_perm;
public static function availableInRange(SimpleORMap|string $range_id_or_object, string $user_id): bool
{
return false;
}
public static function getTypeName(): string
{
return _('Ordner mit Zugangsbeschränkung');
}
public function __construct($folderdata = null)
{
parent::__construct($folderdata);
if (isset($this->folderdata['data_content']['permission'])) {
$this->permission = $this->folderdata['data_content']['permission'];
}
$this->must_have_perm = $this->range_type === 'course' ? 'tutor' : 'autor';
}
public function getPermissionString()
{
$perms = $this->perms;
array_pop($perms);
$r = array_flip($perms);
foreach($perms as $v => $p) {
if (!($this->permission & $p)) {
$r[$p] = '-';
}
}
return implode(array_reverse($r));
}
public function checkPermission($perm, $user_id = null)
{
if ($user_id && is_object($GLOBALS['perm']) && $GLOBALS['perm']->have_studip_perm($this->must_have_perm, $this->range_id, $user_id)) {
return true;
}
return (bool)($this->permission & $this->perms[$perm]);
}
public function getIcon(string $role = Icon::DEFAULT_ROLE): Icon
{
$shape = $this->is_empty
? 'folder-lock-empty'
: 'folder-lock-full';
return Icon::create($shape, $role);
}
public function isVisible(string $user_id = null): bool
{
return $this->checkPermission('x', $user_id)
&& parent::isVisible($user_id);
}
public function isReadable(string $user_id = null): bool
{
return $this->checkPermission('r', $user_id)
&& parent::isReadable($user_id);
}
public function isWritable(string $user_id = null): bool
{
return $this->checkPermission('w', $user_id)
&& parent::isWritable($user_id);
}
public function isSubfolderAllowed(string $user_id): bool
{
return $this->checkPermission('f', $user_id);
}
public function getDescriptionTemplate(): \Flexi\Template|string|null
{
$template = $GLOBALS['template_factory']->open('filesystem/permission_enabled_folder/description.php');
$template->type = self::getTypeName();
$template->folder = $this;
$template->folderdata = $this->folderdata;
return $template;
}
public function validateUpload(FileType $file, string $user_id): ?string
{
if (!$this->isWritable($user_id)) {
return _('Der Dateiordner ist nicht beschreibbar.');
}
return parent::validateUpload($file, $user_id);
}
/**
* @return FileType[]
*/
public function getFiles(): array
{
return array_filter(parent::getFiles(), function($file) {
return $this->isFileVisible($file->getFileRef(), $GLOBALS['user']->id);
});
}
/**
* Determines if a user may see the file.
* @param FileRef|string $fileref_or_id
* @param string $user_id
* @return bool
*/
public function isFileVisible($fileref_or_id, $user_id)
{
return $this->isReadable($user_id);
}
/**
* @param FileRef $file_ref
* @param string $user_id
* @return bool
*/
public function isFileDownloadable(FileRef $file_ref, string $user_id): bool
{
$fileref = FileRef::find($file_ref);
if ($fileref) {
if ($this->isVisible($user_id) && $this->isFileVisible($fileref, $user_id)) {
return $fileref->terms_of_use->isDownloadable($this->range_id, $this->range_type, true, $user_id);
}
}
return false;
}
/**
* @see FolderType::copySettings()
*/
public function copySettings(): array
{
return [
'description' => $this->description,
'data_content' => $this->data_content
];
}
public function countDownloads(?FileRef $ref = null): bool
{
return ($this->permission & $this->perms['r'])
&& parent::countDownloads($ref);
}
}
|
