public static function CanEditClarification($user_id, Clarifications $clarification)
{
if (is_null($clarification) || !is_a($clarification, 'Clarifications')) {
return false;
}
try {
$contest = ContestsDAO::getByPK($clarification->getContestId());
$problem = ProblemsDAO::getByPK($clarification->getProblemId());
} catch (Exception $e) {
throw new InvalidDatabaseOperationException($e);
}
if (is_null($contest) || is_null($problem)) {
return false;
}
return $problem->getAuthorId() === $user_id || Authorization::IsContestAdmin($user_id, $contest);
}
public static final function IsRunInsideSubmissionGap($contest_id, $problem_id, $user_id)
{
// Get last run
$lastrun = self::GetLastRun($contest_id, $problem_id, $user_id);
if (is_null($lastrun)) {
return true;
}
$submission_gap = 0;
if ($contest_id != null) {
// Get submissions gap
$contest = ContestsDAO::getByPK($contest_id);
$submission_gap = (int) $contest->getSubmissionsGap();
}
$submission_gap = max($submission_gap, RunController::$defaultSubmissionGap);
return time() >= strtotime($lastrun->getTime()) + $submission_gap;
}
public static function RefreshScoreboardCache($contest_id)
{
try {
$contest = ContestsDAO::getByPK($contest_id);
$contest_runs = RunsDAO::GetContestRuns($contest_id);
// Get all distinct contestants participating in the contest given contest_id
$raw_contest_users = RunsDAO::GetAllRelevantUsers($contest_id, true, null);
// Get all problems given contest_id
$raw_contest_problems = ContestProblemsDAO::GetRelevantProblems($contest_id);
} catch (Exception $e) {
throw new InvalidDatabaseOperationException($e);
}
$problem_mapping = array();
$order = 0;
foreach ($raw_contest_problems as $problem) {
$problem_mapping[$problem->problem_id] = array('order' => $order++, 'alias' => $problem->alias);
}
$scoreboardLimit = Scoreboard::getScoreboardTimeLimitUnixTimestamp($contest);
// Cache scoreboard until the contest ends (or forever if it has already ended).
$timeout = max(0, strtotime($contest->getFinishTime()) - time());
$contestantScoreboardCache = new Cache(Cache::CONTESTANT_SCOREBOARD_PREFIX, $contest_id);
$contestantScoreboard = Scoreboard::getScoreboardFromRuns($contest_runs, $raw_contest_users, $problem_mapping, $contest->getPenalty(), $scoreboardLimit, $contest, false, false);
$contestantScoreboardCache->set($contestantScoreboard, $timeout);
$adminScoreboardCache = new Cache(Cache::ADMIN_SCOREBOARD_PREFIX, $contest_id);
$scoreboardLimit = Scoreboard::getScoreboardTimeLimitUnixTimestamp($contest, true);
$adminScoreboard = Scoreboard::getScoreboardFromRuns($contest_runs, $raw_contest_users, $problem_mapping, $contest->getPenalty(), $scoreboardLimit, $contest, true, false);
$adminScoreboardCache->set($adminScoreboard, $timeout);
$contestantEventCache = new Cache(Cache::CONTESTANT_SCOREBOARD_EVENTS_PREFIX, $contest_id);
$contestantEventCache->set(Scoreboard::calculateEvents($contest, $contest_runs, $raw_contest_users, $problem_mapping, false), $timeout);
$adminEventCache = new Cache(Cache::ADMIN_SCOREBOARD_EVENTS_PREFIX, $contest_id);
$adminEventCache->set(Scoreboard::calculateEvents($contest, $contest_runs, $raw_contest_users, $problem_mapping, true), $timeout);
// Try to broadcast the updated scoreboards:
$log = Logger::getLogger('Scoreboard');
try {
$grader = new Grader();
$log->debug('Sending updated scoreboards');
$grader->broadcast($contest->alias, json_encode(array('message' => '/scoreboard/update/', 'scoreboard' => $adminScoreboard)), false, -1, false);
$grader->broadcast($contest->alias, json_encode(array('message' => '/scoreboard/update/', 'scoreboard' => $contestantScoreboard)), true, -1, true);
} catch (Exception $e) {
$log->error('Error broadcasting scoreboard: ' . $e);
}
}
/**
* Get list of contests where the user has admin priviledges
*
* @param Request $r
* @return string
* @throws InvalidDatabaseOperationException
*/
public static function apiContests(Request $r)
{
self::authenticateRequest($r);
$response = array();
$response['contests'] = array();
try {
$contest_director_key = new Contests(array('director_id' => $r['current_user_id']));
$contests_director = ContestsDAO::search($contest_director_key);
foreach ($contests_director as $contest) {
$response['contests'][] = $contest->asArray();
}
$contest_admin_key = new UserRoles(array('user_id' => $r['current_user_id'], 'role_id' => CONTEST_ADMIN_ROLE));
$contests_admin = UserRolesDAO::search($contest_admin_key);
foreach ($contests_admin as $contest_key) {
$contest = ContestsDAO::getByPK($contest_key->getContestId());
if (is_null($contest)) {
self::$log->error("UserRoles has a invalid contest: {$contest->getContestId()}");
continue;
}
$response['contests'][] = $contest->asArray();
}
usort($response['contests'], function ($a, $b) {
return $a['contest_id'] > $b['contest_id'] ? -1 : 1;
});
} catch (Exception $e) {
throw new InvalidDatabaseOperationException($e);
}
$response['status'] = 'ok';
return $response;
}
/**
* Details of a scoreboard. Returns a list with all contests that belong to
* the given scoreboard_alias
*
* @param Request $r
*/
public static function apiDetails(Request $r)
{
self::validateGroupScoreboard($r);
$response = array();
// Fill contests
$response["contests"] = array();
$response["ranking"] = array();
try {
$groupScoreboardContestKey = new GroupsScoreboardsContests(array("group_scoreboard_id" => $r["scoreboard"]->group_scoreboard_id));
$r["gscs"] = GroupsScoreboardsContestsDAO::search($groupScoreboardContestKey);
$i = 0;
$contest_params = array();
foreach ($r["gscs"] as $gsc) {
$contest = ContestsDAO::getByPK($gsc->contest_id);
$response["contests"][$i] = $contest->asArray();
$response["contests"][$i]["only_ac"] = $gsc->only_ac;
$response["contests"][$i]["weight"] = $gsc->weight;
// Fill contest params to pass to scoreboardMerge
$contest_params[$contest->alias] = array("only_ac" => $gsc->only_ac == 0 ? false : true, "weight" => $gsc->weight);
$i++;
}
} catch (ApiException $ex) {
throw $ex;
} catch (Exception $ex) {
throw new InvalidDatabaseOperationException($ex);
}
$r["contest_params"] = $contest_params;
// Fill details of this scoreboard
$response["scoreboard"] = $r["scoreboard"]->asArray();
// If we have contests, calculate merged&filtered scoreboard
if (count($response["contests"]) > 0) {
// Get merged scoreboard
$r["contest_aliases"] = "";
foreach ($response["contests"] as $contest) {
$r["contest_aliases"] .= $contest["alias"] . ",";
}
$r["contest_aliases"] = rtrim($r["contest_aliases"], ",");
try {
$groupUsers = GroupsUsersDAO::search(new GroupsUsers(array("group_id" => $r["scoreboard"]->group_id)));
$r["usernames_filter"] = "";
foreach ($groupUsers as $groupUser) {
$user = UsersDAO::getByPK($groupUser->user_id);
$r["usernames_filter"] .= $user->username . ",";
}
$r["usernames_filter"] = rtrim($r["usernames_filter"], ",");
} catch (Exception $ex) {
throw new InvalidDatabaseOperationException($ex);
}
$mergedScoreboardResponse = ContestController::apiScoreboardMerge($r);
$response["ranking"] = $mergedScoreboardResponse["ranking"];
}
$response["status"] = "ok";
return $response;
}
/**
* Invalidates relevant caches on run rejudge
*
* @param RunsDAO $run
*/
public static function invalidateCacheOnRejudge(Runs $run)
{
try {
// Expire details of the run
Cache::deleteFromCache(Cache::RUN_ADMIN_DETAILS, $run->getRunId());
$contest = ContestsDAO::getByPK($run->getContestId());
// Now we need to invalidate problem stats
$problem = ProblemsDAO::getByPK($run->getProblemId());
if (!is_null($problem)) {
// Invalidar cache stats
Cache::deleteFromCache(Cache::PROBLEM_STATS, $problem->getAlias());
}
} catch (Exception $e) {
// We did our best effort to invalidate the cache...
self::$log->warn('Failed to invalidate cache on Rejudge, skipping: ');
self::$log->warn($e);
}
}
/**
* Details of a scoreboard. Returns a list with all contests that belong to
* the given scoreboard_alias
*
* @param Request $r
*/
public static function apiDetails(Request $r)
{
self::validateGroupScoreboard($r);
$response = array();
// Fill contests
$response['contests'] = array();
$response['ranking'] = array();
try {
$groupScoreboardContestKey = new GroupsScoreboardsContests(array('group_scoreboard_id' => $r['scoreboard']->group_scoreboard_id));
$r['gscs'] = GroupsScoreboardsContestsDAO::search($groupScoreboardContestKey);
$i = 0;
$contest_params = array();
foreach ($r['gscs'] as $gsc) {
$contest = ContestsDAO::getByPK($gsc->contest_id);
$response['contests'][$i] = $contest->asArray();
$response['contests'][$i]['only_ac'] = $gsc->only_ac;
$response['contests'][$i]['weight'] = $gsc->weight;
// Fill contest params to pass to scoreboardMerge
$contest_params[$contest->alias] = array('only_ac' => $gsc->only_ac == 0 ? false : true, 'weight' => $gsc->weight);
$i++;
}
} catch (ApiException $ex) {
throw $ex;
} catch (Exception $ex) {
throw new InvalidDatabaseOperationException($ex);
}
$r['contest_params'] = $contest_params;
// Fill details of this scoreboard
$response['scoreboard'] = $r['scoreboard']->asArray();
// If we have contests, calculate merged&filtered scoreboard
if (count($response['contests']) > 0) {
// Get merged scoreboard
$r['contest_aliases'] = '';
foreach ($response['contests'] as $contest) {
$r['contest_aliases'] .= $contest['alias'] . ',';
}
$r['contest_aliases'] = rtrim($r['contest_aliases'], ',');
try {
$groupUsers = GroupsUsersDAO::search(new GroupsUsers(array('group_id' => $r['scoreboard']->group_id)));
$r['usernames_filter'] = '';
foreach ($groupUsers as $groupUser) {
$user = UsersDAO::getByPK($groupUser->user_id);
$r['usernames_filter'] .= $user->username . ',';
}
$r['usernames_filter'] = rtrim($r['usernames_filter'], ',');
} catch (Exception $ex) {
throw new InvalidDatabaseOperationException($ex);
}
$mergedScoreboardResponse = ContestController::apiScoreboardMerge($r);
$response['ranking'] = $mergedScoreboardResponse['ranking'];
}
$response['status'] = 'ok';
return $response;
}
