/**
* Encode file contents for POST-ing to REST API.
* Returns contents of $file (optionally limited in size, see
* dj_get_file_contents) as encoded string.
*/
function rest_encode_file($file, $sizelimit = TRUE)
{
return urlencode(base64_encode(dj_get_file_contents($file, $sizelimit)));
}
/**
* This function takes a (set of) temporary file(s) of a submission,
* validates it and puts it into the database. Additionally it
* moves it to a backup storage.
*/
function submit_solution($team, $prob, $contest, $lang, $files, $filenames, $origsubmitid = NULL)
{
global $DB;
if (empty($team)) {
error("No value for Team.");
}
if (empty($prob)) {
error("No value for Problem.");
}
if (empty($contest)) {
error("No value for Contest.");
}
if (empty($lang)) {
error("No value for Language.");
}
if (!is_array($files) || count($files) == 0) {
error("No files specified.");
}
if (count($files) > dbconfig_get('sourcefiles_limit', 100)) {
error("Tried to submit more than the allowed number of source files.");
}
if (!is_array($filenames) || count($filenames) != count($files)) {
error("Nonmatching (number of) filenames specified.");
}
if (count($filenames) != count(array_unique($filenames))) {
error("Duplicate filenames detected.");
}
$sourcesize = dbconfig_get('sourcesize_limit');
// If no contest has started yet, refuse submissions.
$now = now();
$contestdata = $DB->q('MAYBETUPLE SELECT starttime,endtime FROM contest WHERE cid = %i', $contest);
if (!isset($contestdata)) {
error("Contest c{$contest} not found.");
}
if (difftime($contestdata['starttime'], $now) > 0) {
error("The contest is closed, no submissions accepted. [c{$contest}]");
}
// Check 2: valid parameters?
if (!($langid = $DB->q('MAYBEVALUE SELECT langid FROM language
WHERE langid = %s AND allow_submit = 1', $lang))) {
error("Language '{$lang}' not found in database or not submittable.");
}
if (!($teamid = $DB->q('MAYBEVALUE SELECT teamid FROM team
WHERE teamid = %i AND enabled = 1', $team))) {
error("Team '{$team}' not found in database or not enabled.");
}
$probdata = $DB->q('MAYBETUPLE SELECT probid, points FROM problem
INNER JOIN contestproblem USING (probid)
WHERE probid = %s AND cid = %i AND allow_submit = 1', $prob, $contest);
if (empty($probdata)) {
error("Problem p{$prob} not found in database or not submittable [c{$contest}].");
} else {
$points = $probdata['points'];
$probid = $probdata['probid'];
}
// Reindex arrays numerically to allow simultaneously iterating
// over both $files and $filenames.
$files = array_values($files);
$filenames = array_values($filenames);
$totalsize = 0;
for ($i = 0; $i < count($files); $i++) {
if (!is_readable($files[$i])) {
error("File '" . $files[$i] . "' not found (or not readable).");
}
if (!preg_match(FILENAME_REGEX, $filenames[$i])) {
error("Illegal filename '" . $filenames[$i] . "'.");
}
$totalsize += filesize($files[$i]);
}
if ($totalsize > $sourcesize * 1024) {
error("Submission file(s) are larger than {$sourcesize} kB.");
}
logmsg(LOG_INFO, "input verified");
// Insert submission into the database
$id = $DB->q('RETURNID INSERT INTO submission
(cid, teamid, probid, langid, submittime, origsubmitid)
VALUES (%i, %i, %i, %s, %s, %i)', $contest, $teamid, $probid, $langid, $now, $origsubmitid);
for ($rank = 0; $rank < count($files); $rank++) {
$DB->q('INSERT INTO submission_file
(submitid, filename, rank, sourcecode) VALUES (%i, %s, %i, %s)', $id, $filenames[$rank], $rank, dj_get_file_contents($files[$rank], false));
}
// Recalculate scoreboard cache for pending submissions
calcScoreRow($contest, $teamid, $probid);
// Log to event table
$DB->q('INSERT INTO event (eventtime, cid, teamid, langid, probid, submitid, description)
VALUES(%s, %i, %i, %s, %i, %i, "problem submitted")', now(), $contest, $teamid, $langid, $probid, $id);
alert('submit', "submission {$id}: team {$teamid}, language {$langid}, problem {$probid}");
if (is_writable(SUBMITDIR)) {
// Copy the submission to SUBMITDIR for safe-keeping
for ($rank = 0; $rank < count($files); $rank++) {
$fdata = array('cid' => $contest, 'submitid' => $id, 'teamid' => $teamid, 'probid' => $probid, 'langid' => $langid, 'rank' => $rank, 'filename' => $filenames[$rank]);
$tofile = SUBMITDIR . '/' . getSourceFilename($fdata);
if (!@copy($files[$rank], $tofile)) {
warning("Could not copy '" . $files[$rank] . "' to '" . $tofile . "'");
}
}
} else {
logmsg(LOG_DEBUG, "SUBMITDIR not writable, skipping");
}
if (difftime($contestdata['endtime'], $now) <= 0) {
logmsg(LOG_INFO, "The contest is closed, submission stored but not processed. [c{$contest}]");
}
return $id;
}
