/**
* Returns a report with all user activity for a contest.
*
* @param Request $r
* @return array
* @throws InvalidDatabaseOperationException
*/
public static function apiActivityReport(Request $r)
{
self::validateDetails($r);
if (!$r['contest_admin']) {
throw new ForbiddenAccessException();
}
$accesses = ContestAccessLogDAO::GetAccessForContest($r['contest']);
$submissions = SubmissionLogDAO::GetSubmissionsForContest($r['contest']);
// Merge both logs.
$result['events'] = array();
$lenAccesses = count($accesses);
$lenSubmissions = count($submissions);
$iAccesses = 0;
$iSubmissions = 0;
while ($iAccesses < $lenAccesses && $iSubmissions < $lenSubmissions) {
if ($accesses[$iAccesses]['time'] < $submissions[$iSubmissions]['time']) {
array_push($result['events'], ContestController::processAccess($accesses[$iAccesses++]));
} else {
array_push($result['events'], ContestController::processSubmission($submissions[$iSubmissions++]));
}
}
while ($iAccesses < $lenAccesses) {
array_push($result['events'], ContestController::processAccess($accesses[$iAccesses++]));
}
while ($iSubmissions < $lenSubmissions) {
array_push($result['events'], ContestController::processSubmission($submissions[$iSubmissions++]));
}
// Anonimize data.
$ipMapping = array();
foreach ($result['events'] as &$entry) {
if (!array_key_exists($entry['ip'], $ipMapping)) {
$ipMapping[$entry['ip']] = count($ipMapping);
}
$entry['ip'] = $ipMapping[$entry['ip']];
}
$result['status'] = 'ok';
return $result;
}