function execute($request)
{
if ($request['method'] == 'GET' && $request['path'] == '/autograder/graderpoll') {
$tokens = api_autograder_get_work_queue();
return build_response_ok('', 'OK,' . count($tokens) . ',' . implode(',', $tokens));
}
if ($request['method'] == 'POST' && $request['path_parts'][1] == 'graderpoll' && count($request['path_parts']) == 3) {
$action = $request['path_parts'][2];
$key = strtolower(trim($request['form']['key']));
$token = trim($request['form']['token']);
switch ($action) {
case 'claim':
$result = api_autograder_claim_by_grader($token, $key);
if ($result['ERROR']) {
return build_response_ok('ERR,' . $result['message']);
}
return build_response_ok('', implode(',', array('OK', string_to_hex($result['language']), string_to_hex($result['code']), string_to_hex($result['callback']), string_to_hex($result['expected_function_name']), string_to_hex($result['expected_arg_count']), string_to_hex(!!$result['arg_types'] ? implode('|', $result['arg_types']) : ''), string_to_hex($result['return_type']), string_to_hex($result['test_json']), string_to_hex($result['feature']))));
case 'setstatus':
$result = api_autograder_set_status($token, $key, $request['form']['status']);
if ($result['ERROR']) {
return build_response_ok('ERR,' . $result['message']);
}
return build_response_ok('', 'OK');
case 'finish':
$result = api_autograder_report_conclusion($token, $key, $request['form']['output'], $request['form']['callback']);
if ($result['ERROR']) {
return build_response_ok('ERR,' . $result['message']);
}
return build_response_ok('', 'OK');
default:
return build_response_ok('', 'ERR,not found');
}
}
return build_response_ok('', 'ERR,not found');
}
function client_poll_encode_response($values)
{
$output = array();
foreach ($values as $key => $value) {
array_push($output, string_to_hex($key) . ':' . string_to_hex($value));
}
return implode(',', $output);
}
