function checkFolders()
{
$baseFolder = GalleryResourceStorage::getResourcesStorageFolder();
$userFolder = GalleryResourceStorage::getUserFolder($this->_blogInfo->getId());
$previewsFolder = GalleryResourceStorage::getPreviewsFolder($this->_blogInfo->getId());
$folders = "{$baseFolder}<br/>{$userFolder}<br/>{$previewsFolder}";
$message = "";
// check if the storage folder exists and it is readable
if (!GalleryResourceStorage::checkBaseStorageFolder() || !GalleryResourceStorage::checkUserStorageFolder($this->_blogInfo->getId()) || !GalleryResourceStorage::checkPreviewsStorageFolder($this->_blogInfo->getId()) || !GalleryResourceStorage::checkMediumSizePreviewsStorageFolder($this->_blogInfo->getId())) {
$message = $this->_locale->pr("error_base_storage_folder_missing_or_unreadable", $folders);
}
return $message;
}
/**
* @private
*/
function _checkUserStorageFolder($ownerId)
{
$baseFolder = GalleryResourceStorage::getResourcesStorageFolder();
if ($baseFolder[strlen($baseFolder) - 1] == "/") {
$baseFolder = substr($baseFolder, 0, strlen($baseFolder) - 1);
}
$userFolder = GalleryResourceStorage::getUserFolder($ownerId);
if ($userFolder[strlen($userFolder) - 1] == "/") {
$userFolder = substr($userFolder, 0, strlen($userFolder) - 1);
}
if (!File::isDir($userFolder)) {
// folder does not exist, so we should try to create it
if (!File::createDir($userFolder, 0755)) {
throw new Exception("Could not create user storage folder for resources: " . $userFolder);
return false;
//die();
}
}
if (!File::isReadable($userFolder)) {
//throw( new Exception( $userFolder." user storage folder exists but it is not readable!" ));
return false;
//die();
}
return true;
}
function &getDataChunk($chunksize)
{
if (!$this->_fileDescriptor) {
$fileParts = explode(".", $this->getFileName());
$fileExt = $fileParts[count($fileParts) - 1];
$resourceStorageFolder = GalleryResourceStorage::getResourcesStorageFolder();
$fileName = $resourceStorageFolder . $this->getOwnerId() . "/" . $this->getOwnerId() . "-" . $this->getId() . "." . $fileExt;
/* store this for use again */
$this->_fileDescriptor = @fopen($fileName, "rb");
/* open failed... we'll just say empty file */
if (!$this->_fileDescriptor) {
return false;
}
}
return $this->_getDataChunk($this->_fileDescriptor, $chunksize);
}
