/**
* Upload a file to the wiki via AJAX
*
* @return string
*/
public function ajaxUploadTask()
{
// Check if they're logged in
if (User::isGuest()) {
echo json_encode(array('error' => Lang::txt('COM_COLLECTIONS_ERROR_LOGIN_REQUIRED')));
return;
}
// Ensure we have an ID to work with
$listdir = strtolower(Request::getVar('dir', ''));
if (!$listdir) {
echo json_encode(array('error' => Lang::txt('COM_COLLECTIONS_NO_ID')));
return;
}
if (substr($listdir, 0, 3) == 'tmp') {
$item = new Item($listdir);
if (!$item->exists()) {
$item->set('state', 0);
$item->set('title', $listdir);
if (!$item->store()) {
echo json_encode(array('error' => $item->getError()));
return;
}
}
$listdir = $item->get('id');
}
//max upload size
$sizeLimit = $this->config->get('maxAllowed', 40000000);
// get the file
if (isset($_GET['qqfile'])) {
$stream = true;
$file = $_GET['qqfile'];
$size = (int) $_SERVER["CONTENT_LENGTH"];
} elseif (isset($_FILES['qqfile'])) {
$stream = false;
$file = $_FILES['qqfile']['name'];
$size = (int) $_FILES['qqfile']['size'];
} else {
echo json_encode(array('error' => Lang::txt('COM_COLLECTIONS_FILE_NOT_FOUND')));
return;
}
$asset = new Asset();
//define upload directory and make sure its writable
$path = $asset->filespace() . DS . $listdir;
if (!is_dir($path)) {
if (!Filesystem::makeDirectory($path)) {
echo json_encode(array('error' => Lang::txt('COM_COLLECTIONS_ERROR_UNABLE_TO_CREATE_UPLOAD_DIR')));
return;
}
}
if (!is_writable($path)) {
echo json_encode(array('error' => Lang::txt('COM_COLLECTIONS_ERROR_UPLOAD_DIR_NOT_WRITABLE')));
return;
}
//check to make sure we have a file and its not too big
if ($size == 0) {
echo json_encode(array('error' => Lang::txt('COM_COLLECTIONS_ERROR_EMPTY_FILE')));
return;
}
if ($size > $sizeLimit) {
$max = preg_replace('/<abbr \\w+=\\"\\w+\\">(\\w{1,3})<\\/abbr>/', '$1', \Hubzero\Utility\Number::formatBytes($sizeLimit));
echo json_encode(array('error' => Lang::txt('COM_COLLECTIONS_ERROR_FILE_TOO_LARGE', $max)));
return;
}
// don't overwrite previous files that were uploaded
$pathinfo = pathinfo($file);
$filename = $pathinfo['filename'];
// Make the filename safe
$filename = urldecode($filename);
$filename = Filesystem::clean($filename);
$filename = str_replace(' ', '_', $filename);
$ext = $pathinfo['extension'];
while (file_exists($path . DS . $filename . '.' . $ext)) {
$filename .= rand(10, 99);
}
$file = $path . DS . $filename . '.' . $ext;
if ($stream) {
//read the php input stream to upload file
$input = fopen("php://input", "r");
$temp = tmpfile();
$realSize = stream_copy_to_stream($input, $temp);
fclose($input);
//move from temp location to target location which is user folder
$target = fopen($file, "w");
fseek($temp, 0, SEEK_SET);
stream_copy_to_stream($temp, $target);
fclose($target);
} else {
move_uploaded_file($_FILES['qqfile']['tmp_name'], $file);
}
// Create database entry
$asset->set('item_id', intval($listdir));
$asset->set('filename', $filename . '.' . $ext);
$asset->set('description', Request::getVar('description', '', 'post'));
$asset->set('state', 1);
$asset->set('type', 'file');
if (!$asset->store()) {
echo json_encode(array('error' => $asset->getError()));
return;
}
$view = new \Hubzero\Component\View(array('name' => 'media', 'layout' => '_asset'));
$view->i = Request::getInt('i', 0);
$view->option = $this->_option;
$view->controller = $this->_controller;
$view->asset = $asset;
$view->no_html = 1;
//echo result
echo json_encode(array('success' => true, 'file' => $filename . '.' . $ext, 'directory' => str_replace(PATH_APP, '', $path), 'id' => $listdir, 'html' => str_replace('>', '>', $view->loadTemplate())));
}
