/**
* Compressing and downloading test data and descriptions of an assignment to the browser
*/
public function downloadtestsdesc($assignment_id = FALSE)
{
if ($assignment_id === FALSE) {
show_404();
}
if ($this->user->level <= 1) {
// permission denied
show_404();
}
$this->load->library('zip');
$assignment = $this->assignment_model->assignment_info($assignment_id);
$number_of_problems = $assignment['problems'];
$root_path = rtrim($this->settings_model->get_setting('assignments_root'), '/') . "/assignment_{$assignment_id}";
for ($i = 1; $i <= $number_of_problems; $i++) {
$path = "{$root_path}/p{$i}/in";
$this->zip->read_dir($path, FALSE, $root_path);
$path = "{$root_path}/p{$i}/out";
$this->zip->read_dir($path, FALSE, $root_path);
$path = "{$root_path}/p{$i}/tester.cpp";
if (file_exists($path)) {
$this->zip->add_data("p{$i}/tester.cpp", file_get_contents($path));
}
$pdf_files = glob("{$root_path}/p{$i}/*.pdf");
if ($pdf_files) {
$path = $pdf_files[0];
$this->zip->add_data("p{$i}/" . shj_basename($path), file_get_contents($path));
}
$path = "{$root_path}/p{$i}/desc.html";
if (file_exists($path)) {
$this->zip->add_data("p{$i}/desc.html", file_get_contents($path));
}
$path = "{$root_path}/p{$i}/desc.md";
if (file_exists($path)) {
$this->zip->add_data("p{$i}/desc.md", file_get_contents($path));
}
}
$pdf_files = glob("{$root_path}/*.pdf");
if ($pdf_files) {
$path = $pdf_files[0];
$this->zip->add_data(shj_basename($path), file_get_contents($path));
}
$this->zip->download("assignment{$assignment_id}_tests_desc_" . date('Y-m-d_H-i', shj_now()) . '.zip');
}
/**
* Download pdf file of an assignment (or problem) to browser
*/
public function pdf($problem_id)
{
// Find pdf file
$pdf_dir = "/var/www/html/pdf/p{$problem_id}/*.pdf";
$pdf_files = glob($pdf_dir);
if (!$pdf_files) {
show_error("File not found");
}
// Download the file to browser
$this->load->helper('download')->helper('file');
$filename = shj_basename($pdf_files[0]);
force_download($filename, file_get_contents($pdf_files[0]), TRUE);
}