/**
* Returns details of a Contest
*
* @param Request $r
* @return array
* @throws InvalidDatabaseOperationException
*/
public static function apiDetails(Request $r)
{
self::validateDetails($r);
$result = array();
self::getCachedDetails($r, $result);
if (is_null($r['token'])) {
// Adding timer info separately as it depends on the current user and we don't
// want this to get generally cached for everybody
// Save the time of the first access
try {
$contest_user = ContestsUsersDAO::CheckAndSaveFirstTimeAccess($r["current_user_id"], $r["contest"]->contest_id);
} catch (ApiException $e) {
throw $e;
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add time left to response
if ($r["contest"]->getWindowLength() === null) {
$result['submission_deadline'] = strtotime($r["contest"]->getFinishTime());
} else {
$result['submission_deadline'] = min(strtotime($r["contest"]->getFinishTime()), strtotime($contest_user->access_time) + $r["contest"]->getWindowLength() * 60);
}
$result['admin'] = Authorization::IsContestAdmin($r["current_user_id"], $r["contest"]);
}
$result["status"] = "ok";
return $result;
}
/**
* Returns details of a Contest
*
* @param Request $r
* @return array
* @throws InvalidDatabaseOperationException
*/
public static function apiDetails(Request $r)
{
self::validateDetails($r);
Cache::getFromCacheOrSet(Cache::CONTEST_INFO, $r["contest_alias"], $r, function (Request $r) {
// Create array of relevant columns
$relevant_columns = array("title", "description", "start_time", "finish_time", "window_length", "alias", "scoreboard", "points_decay_factor", "partial_score", "submissions_gap", "feedback", "penalty", "time_start", "penalty_type", "penalty_calc_policy", "public", "show_scoreboard_after", "contestant_must_register", "languages");
// Initialize response to be the contest information
$result = $r["contest"]->asFilteredArray($relevant_columns);
$result['start_time'] = strtotime($result['start_time']);
$result['finish_time'] = strtotime($result['finish_time']);
try {
$result['director'] = UsersDAO::getByPK($r['contest']->director_id)->username;
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Get problems of the contest
$key_problemsInContest = new ContestProblems(array("contest_id" => $r["contest"]->getContestId()));
try {
$problemsInContest = ContestProblemsDAO::search($key_problemsInContest, "order");
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add info of each problem to the contest
$problemsResponseArray = array();
// Set of columns that we want to show through this API. Doesn't include the SOURCE
$relevant_columns = array("title", "alias", "validator", "time_limit", "overall_wall_time_limit", "extra_wall_time", "memory_limit", "visits", "submissions", "accepted", "dificulty", "order", "languages");
$letter = 0;
foreach ($problemsInContest as $problemkey) {
try {
// Get the data of the problem
$temp_problem = ProblemsDAO::getByPK($problemkey->getProblemId());
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add the 'points' value that is stored in the ContestProblem relationship
$temp_array = $temp_problem->asFilteredArray($relevant_columns);
$temp_array["points"] = $problemkey->getPoints();
$temp_array['letter'] = ContestController::columnName($letter++);
if (!empty($result['languages'])) {
$temp_array['languages'] = join(',', array_intersect(explode(',', $result['languages']), explode(',', $temp_array['languages'])));
}
// Save our array into the response
array_push($problemsResponseArray, $temp_array);
}
// Add problems to response
$result['problems'] = $problemsResponseArray;
return $result;
}, $result, APC_USER_CACHE_CONTEST_INFO_TIMEOUT);
if (is_null($r['token'])) {
// Adding timer info separately as it depends on the current user and we don't
// want this to get generally cached for everybody
// Save the time of the first access
try {
$contest_user = ContestsUsersDAO::CheckAndSaveFirstTimeAccess($r["current_user_id"], $r["contest"]->getContestId());
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add time left to response
if ($r["contest"]->getWindowLength() === null) {
$result['submission_deadline'] = strtotime($r["contest"]->getFinishTime());
} else {
$result['submission_deadline'] = min(strtotime($r["contest"]->getFinishTime()), strtotime($contest_user->getAccessTime()) + $r["contest"]->getWindowLength() * 60);
}
$result['admin'] = Authorization::IsContestAdmin($r["current_user_id"], $r["contest"]);
}
$result["status"] = "ok";
return $result;
}
/**
* Entry point for Problem Details API
*
* @param Request $r
* @throws InvalidFilesystemOperationException
* @throws InvalidDatabaseOperationException
*/
public static function apiDetails(Request $r)
{
// Get user.
// Allow unauthenticated requests if we are not openning a problem
// inside a contest.
try {
self::authenticateRequest($r);
} catch (UnauthorizedException $e) {
if (!is_null($r['contest_alias'])) {
throw $e;
}
}
// Validate request
self::validateDetails($r);
$response = array();
// Create array of relevant columns
$relevant_columns = array('title', 'alias', 'validator', 'time_limit', 'validator_time_limit', 'overall_wall_time_limit', 'extra_wall_time', 'memory_limit', 'output_limit', 'visits', 'submissions', 'accepted', 'difficulty', 'creation_date', 'source', 'order', 'points', 'public', 'languages', 'slow', 'stack_limit', 'email_clarifications');
// Read the file that contains the source
if (!ProblemController::isLanguageSupportedForProblem($r)) {
// If there is no language file for the problem, return the spanish version.
$r['lang'] = 'es';
}
$statement_type = ProblemController::getStatementType($r);
Cache::getFromCacheOrSet(Cache::PROBLEM_STATEMENT, $r['problem']->getAlias() . '-' . $r['lang'] . '-' . $statement_type, $r, 'ProblemController::getProblemStatement', $file_content, APC_USER_CACHE_PROBLEM_STATEMENT_TIMEOUT);
// Add problem statement to source
$response['problem_statement'] = $file_content;
$response['problem_statement_language'] = $r['lang'];
// Add the example input.
$sample_input = null;
Cache::getFromCacheOrSet(Cache::PROBLEM_SAMPLE, $r['problem']->getAlias() . '-sample.in', $r, 'ProblemController::getSampleInput', $sample_input, APC_USER_CACHE_PROBLEM_STATEMENT_TIMEOUT);
if (!empty($sample_input)) {
$response['sample_input'] = $sample_input;
}
// Add the problem the response
$response = array_merge($response, $r['problem']->asFilteredArray($relevant_columns));
// If the problem is public or if the user has admin privileges, show the
// problem source and alias of owner.
if ($r['problem']->public || Authorization::IsProblemAdmin($r['current_user_id'], $r['problem'])) {
$problemsetter = UsersDAO::getByPK($r['problem']->author_id);
if (!is_null($problemsetter)) {
$response['problemsetter'] = array('username' => $problemsetter->username, 'name' => is_null($problemsetter->name) ? $problemsetter->username : $problemsetter->name);
}
} else {
unset($response['source']);
}
if (!is_null($r['current_user_id'])) {
// Create array of relevant columns for list of runs
$relevant_columns = array('guid', 'language', 'status', 'verdict', 'runtime', 'penalty', 'memory', 'score', 'contest_score', 'time', 'submit_delay');
// Search the relevant runs from the DB
$contest = ContestsDAO::getByAlias($r['contest_alias']);
$keyrun = new Runs(array('user_id' => $r['current_user_id'], 'problem_id' => $r['problem']->getProblemId(), 'contest_id' => is_null($r['contest']) ? null : $r['contest']->getContestId()));
// Get all the available runs done by the current_user
try {
$runs_array = RunsDAO::search($keyrun);
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add each filtered run to an array
if (count($runs_array) >= 0) {
$runs_filtered_array = array();
foreach ($runs_array as $run) {
$filtered = $run->asFilteredArray($relevant_columns);
$filtered['alias'] = $r['problem']->alias;
$filtered['username'] = $r['current_user']->username;
$filtered['time'] = strtotime($filtered['time']);
array_push($runs_filtered_array, $filtered);
}
}
$response['runs'] = $runs_filtered_array;
}
if (!is_null($r['contest'])) {
// At this point, contestant_user relationship should be established.
try {
ContestsUsersDAO::CheckAndSaveFirstTimeAccess($r['current_user_id'], $r['contest']->contest_id);
} catch (ApiException $e) {
throw $e;
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// As last step, register the problem as opened
if (!ContestProblemOpenedDAO::getByPK($r['contest']->getContestId(), $r['problem']->getProblemId(), $r['current_user_id'])) {
//Create temp object
$keyContestProblemOpened = new ContestProblemOpened(array('contest_id' => $r['contest']->getContestId(), 'problem_id' => $r['problem']->getProblemId(), 'user_id' => $r['current_user_id']));
try {
// Save object in the DB
ContestProblemOpenedDAO::save($keyContestProblemOpened);
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
}
} elseif (isset($r['show_solvers']) && $r['show_solvers']) {
$response['solvers'] = RunsDAO::GetBestSolvingRunsForProblem($r['problem']->problem_id);
}
if (!is_null($r['current_user_id'])) {
ProblemViewedDAO::MarkProblemViewed($r['current_user_id'], $r['problem']->problem_id);
}
$response['score'] = self::bestScore($r);
$response['status'] = 'ok';
return $response;
}
/**
* Entry point for Problem Details API
*
* @param Request $r
* @throws InvalidFilesystemOperationException
* @throws InvalidDatabaseOperationException
*/
public static function apiDetails(Request $r)
{
// Get user.
// Allow unauthenticated requests if we are not openning a problem
// inside a contest.
try {
self::authenticateRequest($r);
} catch (ForbiddenAccessException $e) {
if (!is_null($r["contest_alias"])) {
throw $e;
}
}
// Validate request
self::validateDetails($r);
$response = array();
// Create array of relevant columns
$relevant_columns = array("title", "author_id", "alias", "validator", "time_limit", "validator_time_limit", "overall_wall_time_limit", "extra_wall_time", "memory_limit", "output_limit", "visits", "submissions", "accepted", "difficulty", "creation_date", "source", "order", "points", "public", "languages", "slow", "stack_limit", "email_clarifications");
// Read the file that contains the source
if (!ProblemController::isLanguageSupportedForProblem($r)) {
// If there is no language file for the problem, return the spanish version.
$r['lang'] = 'es';
}
$statement_type = ProblemController::getStatementType($r);
Cache::getFromCacheOrSet(Cache::PROBLEM_STATEMENT, $r["problem"]->getAlias() . "-" . $r["lang"] . "-" . $statement_type, $r, 'ProblemController::getProblemStatement', $file_content, APC_USER_CACHE_PROBLEM_STATEMENT_TIMEOUT);
// Add problem statement to source
$response["problem_statement"] = $file_content;
$response["problem_statement_language"] = $r['lang'];
// Add the example input.
$sample_input = null;
Cache::getFromCacheOrSet(Cache::PROBLEM_SAMPLE, $r["problem"]->getAlias() . "-sample.in", $r, 'ProblemController::getSampleInput', $sample_input, APC_USER_CACHE_PROBLEM_STATEMENT_TIMEOUT);
if (!empty($sample_input)) {
$response['sample_input'] = $sample_input;
}
// Add the problem the response
$response = array_merge($response, $r["problem"]->asFilteredArray($relevant_columns));
if (!is_null($r['current_user_id'])) {
// Create array of relevant columns for list of runs
$relevant_columns = array("guid", "language", "status", "verdict", "runtime", "penalty", "memory", "score", "contest_score", "time", "submit_delay");
// Search the relevant runs from the DB
$contest = ContestsDAO::getByAlias($r["contest_alias"]);
$keyrun = new Runs(array("user_id" => $r["current_user_id"], "problem_id" => $r["problem"]->getProblemId(), "contest_id" => is_null($r["contest"]) ? null : $r["contest"]->getContestId()));
// Get all the available runs done by the current_user
try {
$runs_array = RunsDAO::search($keyrun);
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add each filtered run to an array
if (count($runs_array) >= 0) {
$runs_filtered_array = array();
foreach ($runs_array as $run) {
$filtered = $run->asFilteredArray($relevant_columns);
$filtered['time'] = strtotime($filtered['time']);
array_push($runs_filtered_array, $filtered);
}
}
$response["runs"] = $runs_filtered_array;
}
if (!is_null($r["contest"])) {
// At this point, contestant_user relationship should be established.
try {
$contest_user = ContestsUsersDAO::CheckAndSaveFirstTimeAccess($r["current_user_id"], $r["contest"]->getContestId());
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// As last step, register the problem as opened
if (!ContestProblemOpenedDAO::getByPK($r["contest"]->getContestId(), $r["problem"]->getProblemId(), $r["current_user_id"])) {
//Create temp object
$keyContestProblemOpened = new ContestProblemOpened(array("contest_id" => $r["contest"]->getContestId(), "problem_id" => $r["problem"]->getProblemId(), "user_id" => $r["current_user_id"]));
try {
// Save object in the DB
ContestProblemOpenedDAO::save($keyContestProblemOpened);
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
}
} else {
if (isset($r['show_solvers']) && $r['show_solvers']) {
$response['solvers'] = RunsDAO::GetBestSolvingRunsForProblem($r['problem']->problem_id);
}
}
if (!is_null($r['current_user_id'])) {
ProblemViewedDAO::MarkProblemViewed($r['current_user_id'], $r['problem']->problem_id);
}
$response["score"] = self::bestScore($r);
$response["status"] = "ok";
return $response;
}
