function processGetUsersRequest($request)
{
$user_row = RequestUtils::testSession($request->sessionID);
$prfx = DB_PREFIX;
$user_type = $user_row['user_type'];
$contest_id = RequestUtils::getRequestedContest($request->contestID, $user_row['contest_id'], $user_type);
//make superadmin possible to get users of zero-contest
if ($user_type == 'SuperAdmin' && ($request->contestID == 0 || $request->contestID == -1)) {
$contest_id = 0;
}
if ($contest_id < 0 || $user_type === 'Participant') {
throwBusinessLogicError(0);
}
$rows = Data::getRows(sprintf("SELECT * FROM {$prfx}user WHERE contest_id={$contest_id}"));
$res = new GetUsersResponse();
$res->users = array();
while ($row = Data::getNextRow($rows)) {
$ud = new UserDescription();
$ud->userID = (int) $row['id'];
$ud->login = $row['login'];
$ud->password = $row['password'];
$ud->dataValue = Data::_unserialize($row['user_data'], array());
$ud->userType = $row['user_type'];
$res->users[] = $ud;
}
return $res;
}
function processAvailableContestsRequest($request)
{
$prfx = DB_PREFIX;
$res = new AvailableContestsResponse();
$res->contests = array();
$contest_rows = Data::getRows("SELECT * FROM {$prfx}contest");
while ($row = Data::getNextRow($contest_rows)) {
$c = Data::_unserialize($row['settings']);
$c->contestID = (int) $row['id'];
$res->contests[] = $c;
}
return $res;
}
function processConnectToContestRequest($request)
{
$prfx = DB_PREFIX;
//find user in table
$row = Data::getRow(sprintf("SELECT {$prfx}user.*, {$prfx}contest.settings\r\n FROM {$prfx}user\r\n LEFT JOIN {$prfx}contest\r\n ON {$prfx}user.contest_id = {$prfx}contest.id\r\n WHERE login=%s AND contest_id=%s", Data::quote_smart($request->login), Data::quote_smart($request->contestID)));
//test if there is at least one user
if (!$row) {
throwBusinessLogicError(12);
}
//test password
if ($row['password'] !== $request->password) {
throwBusinessLogicError(12);
}
//get contest settings and contest time
$settings = Data::_unserialize($row['settings'], null);
if (is_null($row['contest_start'])) {
$now = getdate();
$now = $now[0];
$q = Data::composeUpdateQuery('user', array('contest_start' => DatePHPToMySQL($now)), "id={$row['id']}");
Data::submitModificationQuery($q);
$row['contest_start'] = $now;
}
$contest_time = getCurrentContestTime($settings, DateMySQLToPHP($row['contest_start']), DateMySQLToPHP($row['contest_finish']));
if ($contest_time['interval'] === 'before' && $row['user_type'] === 'Participant') {
throwBusinessLogicError(19);
}
//start new session
$session_id = RequestUtils::createSession($row['id']);
//get finish time
if (is_null($settings)) {
$finish_time = 0;
} elseif ($settings->contestTiming->selfContestStart) {
$finish_time = $row['contest_start'] + 60 * $settings->contestTiming->maxContestDuration;
} else {
$finish_time = $settings->finish;
}
if (is_null($finish_time)) {
$finish_time = 0;
}
$res = new ConnectToContestResponse();
$res->sessionID = $session_id;
$res->finishTime = $finish_time;
$res->user = new UserDescription();
$res->user->userID = (int) $row['id'];
$res->user->login = $request->login;
$res->user->dataValue = Data::_unserialize($row['user_data'], array());
$res->user->userType = $row['user_type'];
return $res;
}
/**
* Updates user result for a specified problem
* @static
* @param $user_id id of the user
* @param $problem_id id of the problem
* @param $choice type of choice, Self of Last
* @param $transfer_settings settings of transfer
* @param $plugin plugin associated with the problem, needed only when $choice == Best to find best submission
* @param $last_result last result of user if present
* @return array array with results for results table
*/
public static function getUserResults($user_id, $problem_id, $choice, $transfer_settings, $plugin, $last_result = null)
{
$prfx = DB_PREFIX;
//get new result
$all_results_request = "\n SELECT result, submission_time\n FROM {$prfx}submission_history\n WHERE user_id={$user_id}\n ORDER BY submission_time DESC\n ";
if ($choice === 'Last') {
if ($last_result) {
$new_result = $last_result;
} else {
//get all rows sorted with descending time, and then get first
$row = Data::getRow($all_results_request);
if (!$row) {
$new_result = array();
} else {
$new_result = Data::_unserialize($row['result']);
}
}
} else {
// $choice === 'Best'
$history_results = array();
if ($last_result) {
$history_results[] = $last_result;
}
$rows = Data::getRows($all_results_request);
while ($row = Data::getNextRow($rows)) {
$history_results[] = $row['result'];
}
$num_results = count($history_results);
if ($num_results == 0) {
$new_result = array();
} else {
$new_result = $history_results[$num_results - 1];
for ($i = $num_results - 2; $i >= 0; $i--) {
if ($plugin->compareResults($history_results[$i], $new_result) === 1) {
$new_result = $history_results[$i];
}
}
}
}
$transfer = new ResultsTransfer($transfer_settings);
return $transfer->convert($new_result);
}
/**
* Created by IntelliJ IDEA.
* User: Посетитель
* Date: 17.04.2009
* Time: 15:57:17
* To change this template use File | Settings | File Templates.
*/
function processStopContestRequest($request)
{
$user_row = RequestUtils::testSession($request->sessionID);
$requested_contest_id = $user_row['contest_id'];
if ($requested_contest_id <= 0) {
throwBusinessLogicError(0);
}
$settings = Data::_unserialize($user_row['settings']);
if (!$settings->contestTiming->selfContestStart) {
throwBusinessLogicError(0);
}
$time = getCurrentContestTime($settings, DateMySQLToPHP($user_row['contest_start']), DateMySQLToPHP($user_row['contest_finish']));
if ($time['interval'] === 'before') {
throwBusinessLogicError(19);
}
if ($time['interval'] === 'after') {
throwBusinessLogicError(20);
}
$now = getdate();
$now = $now[0];
Data::submitModificationQuery(Data::composeUpdateQuery('user', array('contest_finish' => DatePHPToMySQL($now)), "id={$user_row['id']}"));
}
function processSubmitSolutionRequest($request)
{
$prfx = DB_PREFIX;
//get user_id or die, if session is invalid
$userRow = RequestUtils::testSession($request->sessionID);
$user_id = $userRow['id'];
//authorize user for this operation
// get contest ID
$user_type = $userRow['user_type'];
//get problem row
$problem_row = Data::getRow(sprintf("SELECT * FROM {$prfx}problem WHERE id=%s", Data::quote_smart($request->problemID)));
if (!$problem_row) {
throwBusinessLogicError(4);
}
//get contest id of a problem
$problem_contest_id = $problem_row['contest_id'];
//test if we have rights to submit solution for the contest
$contest_id = RequestUtils::getRequestedContest($problem_contest_id, $userRow['contest_id'], $user_type);
if ($contest_id < 0) {
throwBusinessLogicError(0);
}
//get all settings
$contest_settings = Data::_unserialize($userRow['settings']);
//test submission time
$cur_time = getCurrentContestTime($contest_settings, DateMySQLToPHP($userRow['contest_start']), DateMySQLToPHP($userRow['contest_finish']));
if ($cur_time['interval'] === 'before') {
throwBusinessLogicError(19);
}
if ($cur_time['interval'] === 'after') {
throwBusinessLogicError(20);
}
$problem_settings = Data::_unserialize($problem_row['contest_settings']);
//test that not all submission attempts were used
$hist = Data::getRow(sprintf("SELECT COUNT(*) AS cnt FROM {$prfx}submission_history WHERE (problem_id=%s) AND (user_id=%s)", Data::quote_smart($request->problemID), Data::quote_smart($user_id)));
if ($hist >= getSetting($contest_settings->problemsDefaultSettings->sendCount, $problem_settings->sendCount)) {
throwBusinessLogicError(21);
}
//save submission result in history
$cur_php_time = getdate();
$col_value = array();
$col_value['problem_id'] = $request->problemID;
$col_value['user_id'] = $user_id;
$col_value['submission'] = serialize($request->problemResult);
$col_value['result'] = null;
//serialize($check_result);
$col_value['submission_time'] = DatePHPToMySQL($cur_php_time[0]);
//TODO implement asynchronous plugin
//get problem and create plugin
$problem = new Problem(getProblemFile($request->problemID));
$plugin_alias = $problem->getServerPlugin();
require_once getServerPluginFile();
require_once getServerPluginFile($plugin_alias);
$plugin = new $plugin_alias($problem);
//check solution
$last_result = $plugin->checkSolution(Data::getInsertedID(), $request->problemResult);
$col_value['result'] = serialize($last_result);
Data::submitModificationQuery(Data::composeInsertQuery('submission_history', $col_value));
//get result for result table and store in user
$all_results = Data::_unserialize($userRow['results']);
$user_result = ResultUtils::getUserResults($user_id, $request->problemID, getSetting($contest_settings->problemsDefaultSettings->tableResultChoice, $problem_settings->tableResultChoice), getSetting($contest_settings->problemsDefaultSettings->resultTransition, $problem_settings->resultTransition), $plugin, $last_result);
//update user result for results table
$all_results[$request->problemID] = $user_result;
Data::submitModificationQuery(Data::composeUpdateQuery('user', array('results' => serialize($all_results)), 'id=' . Data::quote_smart($user_id)));
//return submission result
$res = new AcceptedResponse();
return $res;
}
/**
* creates queries to change problem set
* @param $problems new problems
* @param $contest_id contest id
* @return array() list of temporary files. NULL if the existing file was used
*/
function queriesToAdjustProblems($problems, $contest_id)
{
$prfx = DB_PREFIX;
$changed_probs = array();
//problems that will be changed by request
$temp_probs = array();
//find all contest problems
$prob2settings = array();
$res = Data::getRows(sprintf("SELECT * FROM {$prfx}problem WHERE contest_id=%s", Data::quote_smart($contest_id)));
while ($row = Data::getNextRow($res)) {
$prob2settings[$row['id']] = Data::_unserialize($row['contest_settings']);
}
$contest_pos = 1;
foreach ($problems as $p) {
$col_value = array();
//new problem must have 1) data 2) settings
//set contest id
$col_value['contest_id'] = $contest_id;
$col_value['contest_pos'] = $contest_pos++;
if ($p->id != -1 && !isset($prob2settings[$p->id])) {
throwBusinessLogicError(4);
}
//find problem file or make temporary if a new problem was sent
if ($p->problem) {
$problem_file = getTemporaryProblemFile();
@file_put_contents($problem_file, $p->problem) or throwServerProblem(200, 'failed to write problem file: ' . $problem_file);
$temp_probs[] = $problem_file;
} else {
if ($p->id < 0) {
throwBusinessLogicError(1);
}
$problem_file = getProblemFile($p->id);
$temp_probs[] = NULL;
}
$problem = new Problem($problem_file);
//get server plugin
//TODO improve security here
$plugin_alias = $problem->getServerPlugin();
require_once getServerPluginFile($plugin_alias);
$plugin = new $plugin_alias($problem);
//TODO consider calling updaters here instead of manual insertion of values
//TODO recheck all values if new plugin specified
$col_value['checker_columns'] = serialize($plugin->getColumnNames());
$col_value['result_columns'] = serialize(array());
//copy per contest settings
if ($p->settings) {
if ($p->id != -1) {
$new_settings = $prob2settings[$p->id];
copyValues($p->settings, $new_settings);
} else {
$new_settings = $p->settings;
}
$col_value['contest_settings'] = serialize($new_settings);
} else {
if ($p->id < 0) {
throwBusinessLogicError(1);
}
}
//query depends on whether we add or change a problem
if ($p->id == -1) {
Data::submitModificationQuery(Data::composeInsertQuery('problem', $col_value));
} else {
Data::submitModificationQuery(Data::composeUpdateQuery('problem', $col_value, "id='{$p->id}'"));
$changed_probs[$p->id] = 1;
}
}
//delete extra problems
foreach (array_keys($prob2settings) as $id) {
if (!isset($changed_probs[$id])) {
Data::submitModificationQuery("DELETE FROM {$prfx}problem WHERE id='{$id}'");
}
}
return $temp_probs;
}
function processGetContestDataRequest($request)
{
$prfx = DB_PREFIX;
$is_anonymous = is_null($request->sessionID);
if (!$is_anonymous) {
//get user_id or die, if session is invalid
$userRow = RequestUtils::testSession($request->sessionID);
$user_id = $userRow['id'];
//authorize user for this operation
// get contest ID
$user_type = $userRow['user_type'];
//compare requested contest and user contest
$contest_id = RequestUtils::getRequestedContest($request->contestID, $userRow['contest_id'], $user_type);
} else {
$contest_id = $request->contestID;
}
if ($contest_id <= 0) {
throwBusinessLogicError(0);
}
//create response
$res = new GetContestDataResponse();
//fill contest description with data
//query db
$row = Data::getRow(sprintf("SELECT * FROM {$prfx}contest WHERE id=%s", Data::quote_smart($contest_id))) or throwBusinessLogicError(14);
//TODO remove this code duplication, the code is similar to AvailableContests.php
$c = Data::_unserialize($row['settings']);
$c->contestID = (int) $row['id'];
$res->contest = $c;
//fill problem data
if ($is_anonymous) {
return $res;
}
//query db to find out problems
$problems_rows = Data::getRows(sprintf("SELECT * FROM {$prfx}problem WHERE contest_id=%s ORDER BY contest_pos ASC", Data::quote_smart($contest_id)));
//fill problems data
$res->problems = array();
$info_type = $request->infoType;
$extended_data = $request->extendedData;
while ($row = Data::getNextRow($problems_rows)) {
$pd = new ProblemDescription();
$res->problems[] = $pd;
$pd->id = (int) $row['id'];
$pd->settings = Data::_unserialize($row['contest_settings']);
//do we need any information
if ($info_type == 'NoInfo') {
continue;
}
//do we need to return some info for this problem
if (!is_null($extended_data) && !in_array($pd->id, $extended_data)) {
continue;
}
$problem = new Problem(getProblemFile($pd->id));
if ($info_type !== 'NoInfo') {
//fill extended data: statement or statementData and answerData
if ($info_type === "ParticipantInfo") {
$pd->problem = $problem->getParticipantVersion($user_id)->getProblemBytes();
} elseif ($info_type === "AdminInfo") {
if ($user_type === "Participant") {
throwBusinessLogicError(0);
}
$pd->problem = $problem->getProblemBytes();
}
}
}
return $res;
}
function processGetContestResultsRequest($request)
{
$prfx = DB_PREFIX;
//get $is_anonymous, $contest_id, $user_contest_row, $user_contest_start_time
if (!is_null($request->sessionID)) {
$is_anonymous = false;
$user_contest_row = RequestUtils::testSession($request->sessionID);
$contest_id = RequestUtils::getRequestedContest($request->contestID, $user_contest_row['contest_id'], $user_contest_row['user_type']);
if ($contest_id < 0) {
throwBusinessLogicError(14);
}
$user_contest_start_time = DateMySQLToPHP($user_contest_row['contest_start']);
$user_contest_finish_time = DateMySQLToPHP($user_contest_row['contest_finish']);
} else {
$is_anonymous = true;
$contest_id = $request->contestID;
$user_contest_start_time = null;
//contest was not started for anonymous
$user_contest_finish_time = null;
//and was not finished
}
//get $serialized_contest_settings
$need_request_for_contest_data = $is_anonymous || $user_contest_row['user_type'] === 'SuperAdmin';
if ($need_request_for_contest_data) {
if ($contest_id === 0) {
throwBusinessLogicError(14);
}
$contest_row = Data::getRow(sprintf("SELECT *\r\n FROM {$prfx}contest\r\n WHERE id=%s\r\n ", Data::quote_smart($contest_id)));
if (!$contest_row) {
throwBusinessLogicError(14);
}
$serialized_contest_settings = $contest_row['settings'];
} else {
$serialized_contest_settings = $user_contest_row['settings'];
}
//get $contest_settings
$contest_settings = Data::_unserialize($serialized_contest_settings);
//get $is_admin
$is_admin = !$is_anonymous && ($user_contest_row['user_type'] === 'SuperAdmin' || $user_contest_row['user_type'] === 'ContestAdmin');
//get $permission
$ctime = getCurrentContestTime($contest_settings, $user_contest_start_time, $user_contest_finish_time);
if (!$is_admin) {
if ($ctime['interval'] === 'before') {
throwBusinessLogicError(19);
}
if ($ctime['interval'] === 'contest' && !$ctime['is_ending']) {
$permission = $contest_settings->resultsAccessPolicy->contestPermission;
} else {
if ($ctime['is_ending']) {
$permission = $contest_settings->resultsAccessPolicy->contestEndingPermission;
} else {
if ($ctime['interval'] === 'after' && !$ctime['is_ending']) {
$permission = $contest_settings->resultsAccessPolicy->afterContestPermission;
}
}
}
} else {
$permission = 'FullAccess';
}
//test rights
if ($permission === 'NoAccess') {
throwBusinessLogicError(0);
}
if ($is_anonymous && $permission === "OnlySelfResults") {
throwBusinessLogicError(0);
}
//get problem rows
$all_problems_rows = Data::getRows(sprintf("SELECT *\r\n FROM {$prfx}problem\r\n WHERE {$prfx}problem.contest_id=%s\r\n ORDER BY {$prfx}problem.contest_pos ASC", Data::quote_smart($contest_id)));
//get users rows
if ($permission === 'FullAccess') {
$all_users_rows = Data::getRows(sprintf("SELECT *\r\n FROM {$prfx}user\r\n WHERE contest_id=%s", Data::quote_smart($contest_id)));
} else {
/* if $permission === 'OnlySelfResults'*/
$all_users_rows = $user_contest_row;
}
//create result
$result = new GetContestResultsResponse();
//fill columns ids
$result->headers = array();
$result->minorHeaders = array();
//the first column with 'user_id' and 'login'
if ($is_admin) {
$result->headers[] = 'admin info';
$result->minorHeaders[] = array('id', 'login');
}
//column with participant data
$result->headers[] = 'participant';
//get participant subcolumns
$data_subs = array();
$contest_user_data = $contest_settings->data;
if ($contest_user_data) {
foreach ($contest_settings->data as $df) {
if ($is_admin || $df->showInResult) {
$data_subs[] = $df->data;
}
}
}
$result->minorHeaders[] = $data_subs;
//columns with problems
$problem_ids = array();
$problem_cols = array();
while ($problem_row = Data::getNextRow($all_problems_rows)) {
$problem_ids[] = $problem_row['id'];
$result->headers[] = $problem_row['name'];
$col_names = Data::_unserialize($problem_row['column_names']);
$result->minorHeaders[] = $col_names;
$problem_cols[] = $col_names;
}
//fill results table
$result->table = array();
if ($permission === 'OnlySelfResults') {
$result->table[] = getTableRow($user_contest_row, $is_admin, $problem_ids, $problem_cols, $contest_settings->data);
$result->userLine = 0;
} else {
$ind = 0;
$result->userLine = -1;
while ($user_row = Data::getNextRow($all_users_rows)) {
$result->table[] = getTableRow($user_row, $is_admin, $problem_ids, $problem_cols, $contest_settings->data);
if ($user_row['id'] == $user_contest_row['id']) {
$result->userLine = $ind;
}
$ind++;
}
}
return $result;
}
