/**
* Serve publication content
* Determine how to render depending on master type, attachment type and user choice
* Defaults to download
*
* @return void
*/
public function serveTask()
{
// Incoming
$aid = Request::getInt('a', 0);
// Attachment id
$elementId = Request::getInt('el', 1);
// Element id
$render = Request::getVar('render', '');
$vid = Request::getInt('vid', '');
$file = Request::getVar('file', '');
$disp = Request::getVar('disposition');
$disp = in_array($disp, array('inline', 'attachment')) ? $disp : 'attachment';
// Get our model and load publication data
$this->model = new Models\Publication($this->_identifier, $this->_version, $vid);
if (!$this->model->exists() || $this->model->isDeleted()) {
App::redirect(Route::url('index.php?option=' . $this->_option), Lang::txt('COM_PUBLICATIONS_RESOURCE_NOT_FOUND'), 'error');
return;
}
// Is the visitor authorized to view content?
if (!$this->model->access('view-all')) {
$this->_blockAccess();
return true;
}
// Set curation
$this->model->setCuration();
// Bundle requested?
if ($render == 'archive') {
// Produce archival package
if ($this->model->_curationModel->package()) {
// Log access
if ($this->model->isPublished()) {
$this->model->logAccess('primary');
}
$this->model->_curationModel->serveBundle();
return;
} else {
throw new Exception(Lang::txt('COM_PUBLICATIONS_ERROR_FINDING_ATTACHMENTS'), 404);
return;
}
}
// Bundle requested?
if ($render == 'showcontents') {
// Produce archival package
if ($this->model->_curationModel->package()) {
// Build the HTML of the "about" tab
$view = new \Hubzero\Component\View(['name' => 'view', 'layout' => '_contents']);
$view->model = $this->model;
$view->option = $this->_option;
$view->display();
return;
} else {
throw new Exception(Lang::txt('COM_PUBLICATIONS_ERROR_FINDING_ATTACHMENTS'), 404);
return;
}
}
// Serving data file (dataview)
if ($file) {
// Ensure the file exist
if (!file_exists($this->model->path('data', true) . DS . trim($file))) {
throw new Exception(Lang::txt('COM_PUBLICATIONS_ERROR_FINDING_ATTACHMENTS'), 404);
return;
}
// Initiate a new content server and serve up the file
$server = new \Hubzero\Content\Server();
$server->filename($this->model->path('data', true) . DS . trim($file));
$server->disposition($disp);
$server->acceptranges(true);
$server->saveas(basename($file));
if (!$server->serve()) {
// Should only get here on error
throw new Exception(Lang::txt('COM_PUBLICATIONS_SERVER_ERROR'), 404);
} else {
exit;
}
}
$this->model->attachments();
// Individual attachment is requested? Find element ID
if ($aid) {
$elementId = $this->model->_curationModel->getElementIdByAttachment($aid);
}
// We do need attachments
if (!isset($this->model->_attachments['elements'][$elementId]) || empty($this->model->_attachments['elements'][$elementId])) {
throw new Exception(Lang::txt('COM_PUBLICATIONS_ERROR_FINDING_ATTACHMENTS'), 404);
return;
}
// Get element manifest to deliver content as intended
$curation = $this->model->_curationModel->getElementManifest($elementId);
// We do need manifest!
if (!$curation || !isset($curation->element) || !$curation->element) {
return false;
}
// Get attachment type model
$attModel = new Models\Attachments($this->database);
// Log access
if ($this->model->isPublished()) {
$aType = $curation->element->params->role == 1 ? 'primary' : 'support';
$this->model->logAccess($aType);
}
// Serve content
$content = $attModel->serve($curation->element->params->type, $curation->element, $elementId, $this->model, $curation->block->params, $aid);
// No content served
if ($content === NULL || $content == false) {
throw new Exception(Lang::txt('COM_PUBLICATIONS_ERROR_FINDING_ATTACHMENTS'), 404);
}
// Do we need to redirect to content?
if ($attModel->get('redirect')) {
App::redirect($attModel->get('redirect'));
return;
}
return $content;
}
