/**
* Check if a folder operation (= action) is allowed on a Folder
*
* This method, by design, does not throw exceptions or do logging.
* See the checkFileActionPermission() method above for the reasons.
*
* @param string $action
* @param \TYPO3\CMS\Core\Resource\Folder $folder
* @return boolean
*/
public function checkFolderActionPermission($action, \TYPO3\CMS\Core\Resource\Folder $folder = NULL)
{
// Check 1: Does the user have permission to perform the action? e.g. "writeFolder"
if ($this->checkUserActionPermission($action, 'Folder') === FALSE) {
return FALSE;
}
// Check 2: Does the user has the right to perform the action?
// (= is he within the file mount borders)
if (is_array($this->fileMounts) && count($this->fileMounts) && !$this->isWithinFileMountBoundaries($folder)) {
return FALSE;
}
$isReadCheck = FALSE;
if ($action === 'read') {
$isReadCheck = TRUE;
}
$isWriteCheck = FALSE;
if (in_array($action, array('write', 'delete', 'deleteRecursive'))) {
$isWriteCheck = TRUE;
}
// Check 3: Check the capabilities of the storage (and the driver)
if ($isReadCheck && !$this->isBrowsable()) {
return FALSE;
}
if ($isWriteCheck && !$this->isWritable()) {
return FALSE;
}
// Check 4: "Folder permissions" of the driver
$folderPermissions = $this->driver->getFolderPermissions($folder);
if ($isReadCheck && !$folderPermissions['r']) {
return FALSE;
}
if ($isWriteCheck && !$folderPermissions['w']) {
return FALSE;
}
return TRUE;
}
