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TwigExtension.php
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<?php declare(strict_types=1);
namespace App\Twig;
use App\Entity\BaseApiEntity;
use App\Entity\Contest;
use App\Entity\ContestProblem;
use App\Entity\ExternalJudgement;
use App\Entity\ExternalSourceWarning;
use App\Entity\Judging;
use App\Entity\JudgingRun;
use App\Entity\Language;
use App\Entity\Problem;
use App\Entity\Submission;
use App\Entity\SubmissionFile;
use App\Entity\Testcase;
use App\Service\AwardService;
use App\Service\ConfigurationService;
use App\Service\DOMJudgeService;
use App\Service\EventLogService;
use App\Service\SubmissionService;
use App\Utils\Utils;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\EntityManagerInterface;
use SebastianBergmann\Diff\Differ;
use Symfony\Component\Intl\Countries;
use Symfony\Component\Intl\Exception\MissingResourceException;
use Symfony\Component\PropertyAccess\PropertyAccess;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
use Twig\Environment;
use Twig\Extension\AbstractExtension;
use Twig\Extension\GlobalsInterface;
use Twig\TwigFilter;
use Twig\TwigFunction;
class TwigExtension extends AbstractExtension implements GlobalsInterface
{
protected DOMJudgeService $dj;
protected ConfigurationService $config;
protected Environment $twig;
protected EntityManagerInterface $em;
protected SubmissionService $submissionService;
protected EventLogService $eventLogService;
protected AwardService $awards;
protected TokenStorageInterface $tokenStorage;
protected AuthorizationCheckerInterface $authorizationChecker;
protected string $projectDir;
public function __construct(
DOMJudgeService $dj,
ConfigurationService $config,
Environment $twig,
EntityManagerInterface $em,
SubmissionService $submissionService,
EventLogService $eventLogService,
AwardService $awards,
TokenStorageInterface $tokenStorage,
AuthorizationCheckerInterface $authorizationChecker,
string $projectDir
) {
$this->dj = $dj;
$this->config = $config;
$this->twig = $twig;
$this->em = $em;
$this->submissionService = $submissionService;
$this->eventLogService = $eventLogService;
$this->awards = $awards;
$this->tokenStorage = $tokenStorage;
$this->authorizationChecker = $authorizationChecker;
$this->projectDir = $projectDir;
}
public function getFunctions(): array
{
return [
new TwigFunction('button', [$this, 'button'], ['is_safe' => ['html']]),
new TwigFunction('calculatePenaltyTime', [$this, 'calculatePenaltyTime']),
new TwigFunction('showExternalId', [$this, 'showExternalId']),
new TwigFunction('customAssetFiles', [$this, 'customAssetFiles']),
new TwigFunction('globalBannerAssetPath', [$this->dj, 'globalBannerAssetPath']),
];
}
public function getFilters(): array
{
return [
new TwigFilter('printtimediff', [$this, 'printtimediff']),
new TwigFilter('printremainingminutes', [$this, 'printremainingminutes']),
new TwigFilter('printtime', [$this, 'printtime']),
new TwigFilter('printtimeHover', [$this, 'printtimeHover'], ['is_safe' => ['html']]),
new TwigFilter('printResult', [$this, 'printResult'], ['is_safe' => ['html']]),
new TwigFilter('printValidJuryResult', [$this, 'printValidJuryResult'], ['is_safe' => ['html']]),
new TwigFilter('printValidJurySubmissionResult', [$this, 'printValidJurySubmissionResult'],
['is_safe' => ['html']]),
new TwigFilter('printHost', [$this, 'printHost'], ['is_safe' => ['html']]),
new TwigFilter('printHosts', [$this, 'printHosts'], ['is_safe' => ['html']]),
new TwigFilter('printFiles', [$this, 'printFiles'], ['is_safe' => ['html']]),
new TwigFilter('printLazyMode', [$this, 'printLazyMode']),
new TwigFilter('printYesNo', [$this, 'printYesNo']),
new TwigFilter('printSize', [Utils::class, 'printSize'], ['is_safe' => ['html']]),
new TwigFilter('testcaseResults', [$this, 'testcaseResults'], ['is_safe' => ['html']]),
new TwigFilter('displayTestcaseResults', [$this, 'displayTestcaseResults'],
['is_safe' => ['html']]),
new TwigFilter('externalCcsUrl', [$this, 'externalCcsUrl']),
new TwigFilter('lineCount', [$this, 'lineCount']),
new TwigFilter('base64', 'base64_encode'),
new TwigFilter('base64_decode', 'base64_decode'),
new TwigFilter('parseRunDiff', [$this, 'parseRunDiff'], ['is_safe' => ['html']]),
new TwigFilter('runDiff', [$this, 'runDiff'], ['is_safe' => ['html']]),
new TwigFilter('interactiveLog', [$this, 'interactiveLog'], ['is_safe' => ['html']]),
new TwigFilter('codeEditor', [$this, 'codeEditor'], ['is_safe' => ['html']]),
new TwigFilter('showDiff', [$this, 'showDiff'], ['is_safe' => ['html']]),
new TwigFilter('printContestStart', [$this, 'printContestStart']),
new TwigFilter('assetPath', [$this->dj, 'assetPath']),
new TwigFilter('printTimeRelative', [$this, 'printTimeRelative']),
new TwigFilter('scoreTime', [$this, 'scoreTime']),
new TwigFilter('statusClass', [$this, 'statusClass']),
new TwigFilter('statusIcon', [$this, 'statusIcon'], ['is_safe' => ['html']]),
new TwigFilter('countryFlag', [$this, 'countryFlag'], ['is_safe' => ['html']]),
new TwigFilter('affiliationLogo', [$this, 'affiliationLogo'], ['is_safe' => ['html']]),
new TwigFilter('descriptionExpand', [$this, 'descriptionExpand'], ['is_safe' => ['html']]),
new TwigFilter('wrapUnquoted', [$this, 'wrapUnquoted']),
new TwigFilter('hexColorToRGBA', [$this, 'hexColorToRGBA']),
new TwigFilter('tsvField', [$this, 'toTsvField']),
new TwigFilter('fileTypeIcon', [$this, 'fileTypeIcon']),
new TwigFilter('problemBadge', [$this, 'problemBadge'], ['is_safe' => ['html']]),
new TwigFilter('problemBadgeForContest', [$this, 'problemBadgeForContest'], ['is_safe' => ['html']]),
new TwigFilter('printMetadata', [$this, 'printMetadata'], ['is_safe' => ['html']]),
new TwigFilter('printWarningContent', [$this, 'printWarningContent'], ['is_safe' => ['html']]),
new TwigFilter('entityIdBadge', [$this, 'entityIdBadge'], ['is_safe' => ['html']]),
new TwigFilter('medalType', [$this->awards, 'medalType']),
new TwigFilter('numTableActions', [$this, 'numTableActions']),
];
}
public function getGlobals(): array
{
$refresh_cookie = $this->dj->getCookie("domjudge_refresh");
$refresh_flag = ($refresh_cookie == null || (bool)$refresh_cookie);
$user = $this->dj->getUser();
$team = $user ? $user->getTeam() : null;
// These variables mostly exist for the header template.
return [
'current_contest_id' => $this->dj->getCurrentContestCookie(),
'current_contest' => $this->dj->getCurrentContest(),
'current_contests' => $this->dj->getCurrentContests(),
'current_public_contest' => $this->dj->getCurrentContest(-1),
'current_public_contests' => $this->dj->getCurrentContests(-1),
'have_printing' => $this->config->get('print_command'),
'refresh_flag' => $refresh_flag,
'icat_url' => $this->config->get('icat_url'),
'external_ccs_submission_url' => $this->config->get('external_ccs_submission_url'),
'current_team_contest' => $team ? $this->dj->getCurrentContest($team->getTeamid()) : null,
'current_team_contests' => $team ? $this->dj->getCurrentContests($team->getTeamid()) : null,
'submission_languages' => $this->em->createQueryBuilder()
->from(Language::class, 'l')
->select('l')
->andWhere('l.allowSubmit = 1')
->getQuery()
->getResult(),
'alpha3_countries' => Countries::getAlpha3Names(),
'alpha3_alpha2_country_mapping' => array_combine(
Countries::getAlpha3Codes(),
array_map(fn($alpha3) => Countries::getAlpha2Code($alpha3), Countries::getAlpha3Codes())
),
'show_shadow_differences' => $this->tokenStorage->getToken() &&
$this->authorizationChecker->isGranted('ROLE_ADMIN') &&
$this->config->get('data_source') === DOMJudgeService::DATA_SOURCE_CONFIGURATION_AND_LIVE_EXTERNAL,
'doc_links' => $this->dj->getDocLinks(),
];
}
public function printtimediff(float $start, ?float $end = null): string
{
return Utils::printtimediff($start, $end);
}
public function printremainingminutes(float $start, float $end): string
{
$minutesRemaining = floor(($end - $start)/60);
if ($minutesRemaining < 1) {
return 'less than 1 minute to go';
} elseif ($minutesRemaining == 1) {
return '1 minute to go';
} else {
return $minutesRemaining . ' minutes to go';
}
}
/**
* Print a time formatted as specified. The format is according to date().
* @param string|float $datetime
* @param Contest|null $contest If given, print time relative to that contest start.
*/
public function printtime($datetime, ?string $format = null, ?Contest $contest = null): string
{
if ($datetime === null) {
$datetime = Utils::now();
}
if ($contest !== null && $this->config->get('show_relative_time')) {
$relativeTime = $contest->getContestTime((float)$datetime);
$sign = ($relativeTime < 0 ? -1 : 1);
$relativeTime *= $sign;
// We're not showing seconds, while the last minute before
// contest start should show as "-0:01", so if there's a
// nonzero amount of seconds before the contest, we have to
// add a minute.
$s = $relativeTime % 60;
$relativeTime = ($relativeTime - $s) / 60;
if ($sign < 0 && $s > 0) {
$relativeTime++;
}
$m = $relativeTime % 60;
$relativeTime = ($relativeTime - $m) / 60;
$h = $relativeTime;
if ($sign < 0) {
return sprintf("-%d:%02d", $h, $m);
} else {
return sprintf("%d:%02d", $h, $m);
}
} else {
if ($format === null) {
$format = $this->config->get('time_format');
}
return Utils::printtime($datetime, $format);
}
}
/**
* Helper function to print a time in the default/configured format,
* and a hover title attribute with the full datetime string.
*
* @param string|float $datetime
* @param Contest|null $contest If given, print time relative to that contest start.
*/
public function printtimeHover($datetime, ?Contest $contest = null): string
{
if ($datetime === null) {
$datetime = Utils::now();
}
return '<span title="' .
Utils::printtime($datetime, 'Y-m-d H:i:s (T)') . '">' .
$this->printtime($datetime, null, $contest) .
'</span>';
}
public static function printLazyMode(?int $val): string
{
switch ($val) {
case false:
return "-";
case DOMJudgeService::EVAL_DEMAND:
return "On demand";
case DOMJudgeService::EVAL_FULL:
return "No";
case DOMJudgeService::EVAL_LAZY:
return "Yes";
default:
return "Unknown mode $val";
}
}
public static function printYesNo(bool $val): string
{
return $val ? 'Yes' : 'No';
}
public function button(
string $url,
string $text,
string $type = 'primary',
?string $icon = null,
bool $isAjaxModal = false
): string {
if ($icon) {
$icon = sprintf('<i class="fas fa-%s"></i> ', $icon);
}
if ($isAjaxModal) {
return sprintf('<a href="%s" class="btn btn-%s" title="%s" data-ajax-modal>%s%s</a>', $url, $type, $text,
$icon, $text);
} else {
return sprintf('<a href="%s" class="btn btn-%s" title="%s">%s%s</a>', $url, $type, $text, $icon, $text);
}
}
public static function statusClass(string $status): string
{
switch ($status) {
case 'noconn':
return 'text-muted';
case 'crit':
return 'text-danger';
case 'warn':
return 'text-warning';
case 'ok':
return 'text-success';
}
return '';
}
public static function statusIcon(string $status): string
{
switch ($status) {
case 'noconn':
$icon = 'question';
break;
case 'crit':
$icon = 'times';
break;
case 'warn':
$icon = 'exclamation';
break;
case 'ok':
$icon = 'check';
break;
default:
return 'unknown';
}
return sprintf('<i class="fas fa-%s-circle" aria-hidden="true"></i><span class="sr-only">%s</span>', $icon,
$status);
}
public function countryFlag(?string $alpha3CountryCode, bool $showFullname = false): string
{
if (empty($alpha3CountryCode)) {
return '';
}
try {
$countryAlpha2 = strtolower(Countries::getAlpha2Code($alpha3CountryCode));
} catch (MissingResourceException $e) {
return '';
}
$assetFunction = $this->twig->getFunction('asset')->getCallable();
$countryFlagUrl = call_user_func($assetFunction, sprintf('flags/4x3/%s.svg', $countryAlpha2));
$countryName = Countries::getAlpha3Name($alpha3CountryCode);
if ($showFullname) {
return sprintf('<img src="%s" alt="" class="countryflag"> %s',
$countryFlagUrl, $countryName);
}
return sprintf('<img loading="lazy" src="%s" alt="%s" title="%s" class="countryflag">',
$countryFlagUrl, $alpha3CountryCode, $countryName);
}
public function affiliationLogo(string $affiliationId, string $shortName): string
{
if ($asset = $this->dj->assetPath($affiliationId, 'affiliation')) {
$assetFunction = $this->twig->getFunction('asset')->getCallable();
$assetUrl = call_user_func($assetFunction, $asset);
return sprintf('<img src="%s" alt="%s" class="affiliation-logo">',
Utils::specialchars($assetUrl), Utils::specialchars($shortName));
}
return '';
}
public function testcaseResults(Submission $submission, ?bool $showExternal = false): string
{
// We use a direct SQL query here for performance reasons
if ($showExternal) {
/** @var ExternalJudgement|null $externalJudgement */
$externalJudgement = $submission->getExternalJudgements()->first();
$externalJudgementId = $externalJudgement ? $externalJudgement->getExtjudgementid() : null;
$probId = $submission->getProblem()->getProbid();
$testcases = $this->em->getConnection()->fetchAllAssociative(
'SELECT er.result as runresult, t.ranknumber, t.description
FROM testcase t
LEFT JOIN external_run er ON (er.testcaseid = t.testcaseid
AND er.extjudgementid = :extjudgementid)
WHERE t.probid = :probid ORDER BY ranknumber',
['extjudgementid' => $externalJudgementId, 'probid' => $probId]);
$submissionDone = $externalJudgement && !empty($externalJudgement->getEndtime());
} else {
/** @var Judging|null $judging */
$judging = $submission->getJudgings()->first();
$judgingId = $judging ? $judging->getJudgingid() : null;
$probId = $submission->getProblem()->getProbid();
$testcases = $this->em->getConnection()->fetchAllAssociative(
'SELECT r.runresult, jh.hostname, jt.valid, t.ranknumber, t.description
FROM testcase t
LEFT JOIN judging_run r ON (r.testcaseid = t.testcaseid
AND r.judgingid = :judgingid)
LEFT JOIN judgetask jt ON (r.judgetaskid = jt.judgetaskid)
LEFT JOIN judgehost jh on (jt.judgehostid = jh.judgehostid)
WHERE t.probid = :probid ORDER BY ranknumber',
['judgingid' => $judgingId, 'probid' => $probId]);
$submissionDone = $judging && !empty($judging->getEndtime());
}
$results = '';
foreach ($testcases as $key => $testcase) {
$class = $submissionDone ? 'secondary' : 'primary';
$text = '?';
if ($testcase['runresult'] !== null) {
$text = substr($testcase['runresult'], 0, 1);
$class = 'danger';
if ($testcase['runresult'] === Judging::RESULT_CORRECT) {
$text = '✓';
$class = 'success';
}
} elseif (array_key_exists('valid', $testcase) && !$testcase['valid']) {
$text = '✕';
} elseif (array_key_exists('hostname', $testcase) && $testcase['hostname'] !== null) {
$text = '↺';
$class = 'info';
}
if (!empty($testcase['description'])) {
$title = sprintf('Run %d: %s', $key + 1,
Utils::specialchars($testcase['description']));
} else {
$title = sprintf('Run %d', $key + 1);
}
$results .= sprintf('<span class="badge badge-%s badge-testcase" title="%s">%s</span>', $class, $title,
$text);
}
return $results;
}
// TODO: this function shares a lot with the above one, unify them?
public function displayTestcaseResults(array $testcases, bool $submissionDone, bool $isExternal = false): string
{
/** @var Testcase[] $testcases */
$results = '';
$lastTypeSample = true;
foreach ($testcases as $testcase) {
if ($testcase->getSample() != $lastTypeSample) {
$results .= ' | ';
$lastTypeSample = $testcase->getSample();
}
$class = $submissionDone ? 'secondary' : 'primary';
$text = '?';
$isCorrect = false;
/** @var JudgingRun $run */
$run = $isExternal ? $testcase->getFirstExternalRun() : $testcase->getFirstJudgingRun();
if ($isExternal) {
$runResult = $run ? $run->getResult() : null;
} else {
$runResult = $run ? $run->getRunresult() : null;
}
if ($run) {
if ($runResult !== null) {
$text = substr($runResult, 0, 1);
$class = 'danger';
if ($runResult === Judging::RESULT_CORRECT) {
$isCorrect = true;
$text = '✓';
$class = 'success';
}
} elseif ($run->getJudgeTask()->getJudgehost() !== null) {
$text = '↺';
$class = 'info';
}
}
$titleElements = ["#" . $testcase->getRank()];
if (!empty($testcase->getOrigInputFilename())) {
$titleElements[] = "name: " . $testcase->getOrigInputFilename();
}
$description = $testcase->getDescription(true);
if (!empty($description)) {
$titleElements[] = "desc: " . $description;
}
if ($run && $runResult !== null) {
$titleElements[] = sprintf('runtime: %ss', $run->getRuntime());
$titleElements[] = sprintf('result: %s', $runResult);
}
$icon = sprintf('<span class="badge badge-%s badge-testcase">%s</span>', $class, $text);
$results .= sprintf('<a title="%s" href="#run-%d" %s>%s</a>',
join(', ', $titleElements), $testcase->getRank(),
$isCorrect ? 'onclick="display_correctruns(true);"' : '', $icon);
}
return $results;
}
public function printResult(?string $result, bool $valid = true, bool $jury = false): string
{
switch ($result) {
case 'too-late':
$style = 'sol_queued';
break;
/** @noinspection PhpMissingBreakStatementInspection */
case '':
$result = 'judging';
// no break
case 'judging':
case 'queued':
case 'pending':
case 'aborted':
case 'n / a':
if (!$jury) {
$result = 'pending';
}
$style = 'sol_queued';
break;
case 'correct':
$style = 'sol_correct';
break;
default:
$style = 'sol_incorrect';
}
return sprintf('<span class="sol %s">%s</span>', $valid ? $style : 'disabled', $result);
}
public function printValidJuryResult(?string $result): string
{
return $this->printResult($result, true, true);
}
public function printValidJurySubmissionResult(Submission $submission, bool $forDisplay = true): string
{
/** @var Judging|null $firstJudging */
$firstJudging = $submission->getJudgings()->first();
$judgingResult = '';
if ($firstJudging) {
$judgingResult = $forDisplay
? $this->printValidJuryResult($firstJudging->getResult())
: $firstJudging->getResult();
}
$output = $forDisplay ? '' : 'queued';
if ($submission->getSubmittime() > $submission->getContest()->getEndtime()) {
if ($forDisplay) {
$output .= $this->printValidJuryResult('too-late');
}
if ($firstJudging && $firstJudging->getResult()) {
if ($forDisplay) {
$output .= ' (' . $judgingResult . ')';
} else {
$output = $judgingResult;
}
}
} elseif (!$firstJudging || !$firstJudging->getResult()) {
if ($firstJudging && $firstJudging->isStarted()) {
$output = $forDisplay ? $this->printValidJuryResult('') : 'judging';
} else {
$output = $forDisplay ? $this->printValidJuryResult('queued') : 'queued';
}
} else {
$output = $judgingResult;
}
if ($forDisplay && $submission->isStillBusy()) {
$output .= ' (…)';
}
return $output;
}
public function externalCcsUrl(Submission $submission): ?string
{
$extCcsUrl = $this->config->get('external_ccs_submission_url');
if (!empty($extCcsUrl)) {
$dataSource = $this->config->get('data_source');
if ($dataSource == 2 && $submission->getExternalid()) {
return str_replace(['[contest]', '[id]'],
[$submission->getContest()->getExternalid(), $submission->getExternalid()],
$extCcsUrl);
} elseif ($dataSource == 1) {
return str_replace(['[contest]', '[id]'],
[$submission->getContest()->getExternalid(), $submission->getSubmitid()],
$extCcsUrl);
}
}
return null;
}
/**
* Prints the first file (and potentially the number of additional files).
*/
public function printFiles(Collection $files): string
{
$files = $files->toArray();
if (empty($files)) {
// Should not happen, but better do something reasonable here if it would.
return "source code";
}
$firstFile = $files[0]->getFilename();
if (count($files) == 1) {
return sprintf('<span class="hostname">%s</span>', Utils::specialchars($firstFile));
}
return sprintf('<span class="filename">%s</span> (and %d more)',
Utils::specialchars($firstFile),
count($files) - 1
);
}
/**
* Formats a given hostname. If $full = true, then the full hostname will be printed,
* else only the local part (for keeping tables readable)
*/
public function printHost(?string $hostname, bool $full = false): string
{
if ($hostname === null) {
return '<span class="nodata">hostname unset</span>';
}
// Shorten the hostname to first label, but not if it's an IP address.
if (!$full && !preg_match('/^\d{1,3}(\.\d{1,3}){3}$/', $hostname)) {
$expl = explode('.', $hostname);
$hostname = array_shift($expl);
}
return sprintf('<span class="hostname">%s</span>', Utils::specialchars($hostname));
}
/**
* Extract the longest common prefix of all the provided strings.
*/
private function getCommonPrefix(array $strings): string
{
$common_prefix = $strings[0];
foreach ($strings as $string) {
$len = strlen($string);
while ($len > 0) {
if (substr_compare($common_prefix, $string, 0, $len) == 0) {
break;
}
$len--;
}
if ($len == 0) {
$common_prefix = "";
break;
}
$common_prefix = substr($common_prefix, 0, $len);
}
return $common_prefix;
}
/**
* Formats a list of given hostnames, extracting a common prefix and suffix.
*/
public function printHosts(array $hostnames): string
{
if (empty($hostnames)) {
return "";
}
if (count($hostnames) == 1) {
return $this->printHost($hostnames[0]);
}
$hostnames = array_unique($hostnames);
$local_parts = [];
foreach ($hostnames as $hostname) {
// Shorten the hostname to first label, but not if it's an IP address.
if (!preg_match('/^\d{1,3}(\.\d{1,3}){3}$/', $hostname)) {
$expl = explode('.', $hostname);
$hostname = array_shift($expl);
}
$local_parts[] = $hostname;
}
// Extract the longest common prefix.
$common_prefix = $this->getCommonPrefix($local_parts);
$prefix_len = strlen($common_prefix);
// Extract the longest common suffix.
$reversed = array_map('strrev', $local_parts);
$common_suffix = strrev($this->getCommonPrefix($reversed));
$suffix_len = strlen($common_suffix);
// Extract the list of remaining parts. This list may contain empty values. If $common_prefix overlaps
// $common_suffix, then $common_prefix = $common_suffix = the entire string.
$middle_parts = array_map(fn($host) => substr($host, $prefix_len, strlen($host) - $prefix_len - $suffix_len), $local_parts);
// Usually the middle parts contain numbers, so use natural sort for them.
usort($middle_parts, 'strnatcmp');
if (empty($common_prefix) && empty($common_suffix)) {
// No common prefix nor suffix: list all the names without "{}".
return implode(", ", array_map([$this, 'printHost'], $hostnames));
} else {
$hosts = $common_prefix . "{" . implode(",", $middle_parts) . "}" . $common_suffix;
return $this->printHost($hosts, true);
}
}
public function lineCount(string $input): int
{
return mb_substr_count($input, "\n");
}
public function parseRunDiff(string $difftext): string
{
$line = strtok($difftext, "\n"); //first line
if ($line === false || sscanf($line, "### DIFFERENCES FROM LINE %d ###\n", $firstdiff) != 1) {
return Utils::specialchars($difftext);
}
$return = $line . "\n";
// Add second line 'team ? reference'.
$line = strtok("\n");
$return .= $line . "\n";
// We determine the line number width from the '_' characters and
// the separator position from the character '?' on the second line.
$linenowidth = mb_strrpos($line, '_') + 1;
$midloc = mb_strpos($line, '?') - ($linenowidth + 1);
$line = strtok("\n");
while (mb_strlen($line) != 0) {
$linenostr = mb_substr($line, 0, $linenowidth);
$diffline = mb_substr($line, $linenowidth + 1);
$mid = mb_substr($diffline, $midloc - 1, 3);
switch ($mid) {
case ' = ':
$formdiffline = "<span class='correct'>" . Utils::specialchars($diffline) . "</span>";
break;
case ' ! ':
$formdiffline = "<span class='differ'>" . Utils::specialchars($diffline) . "</span>";
break;
case ' $ ':
$formdiffline = "<span class='endline'>" . Utils::specialchars($diffline) . "</span>";
break;
case ' > ':
case ' < ':
$formdiffline = "<span class='extra'>" . Utils::specialchars($diffline) . "</span>";
break;
default:
$formdiffline = Utils::specialchars($diffline);
}
$return = $return . $linenostr . " " . $formdiffline . "\n";
$line = strtok("\n");
}
return $return;
}
public function interactiveLog(string $log, bool $forTeam = false): string
{
$truncated = '/\[output display truncated after \d* B\]$/';
$matches = [];
$truncation = "";
if (preg_match($truncated, $log, $matches)) {
$truncation = $matches[0];
$log = preg_replace($truncated, "", $log);
$log = rtrim($log);
}
if ($forTeam) {
$header = "<table><tr><th>jury</th><th>your submission<th></tr>\n";
} else {
$header = "<table><tr><th>time</th><th>validator</th><th>submission<th></tr>\n";
}
$body = "";
$idx = 0;
while ($idx < strlen($log)) {
$slashPos = strpos($log, "/", $idx);
if ($slashPos === false) {
break;
}
$time = substr($log, $idx + 1, $slashPos - $idx - 1);
$idx = $slashPos + 1;
$closePos = strpos($log, "]", $idx);
if ($closePos === false) {
break;
}
$lenStr = substr($log, $idx, $closePos - $idx);
$len = (int)$lenStr;
$idx = $closePos + 1;
if ($idx >= strlen($log)) {
break;
}
$is_validator = $log[$idx] == '>';
$content = substr($log, $idx + 3, $len);
if (empty($content)) {
break;
}
$content = Utils::specialchars($content);
$content = '<td class="output_text">'
. str_replace("\n", "\u{21B5}<br/>", $content)
. '</td>';
$idx += $len + 4;
$team = $is_validator ? '<td/>' : $content;
$validator = $is_validator ? $content : '<td/>';
$body .= "<tr>" . ($forTeam ? "" : "<td>$time</td>")
. $validator
. $team
. "</tr>\n";
}
return $header . $body . "</table>" . $truncation;
}
public function runDiff(array $runOutput): string
{
// TODO: can be improved using diffposition.txt
// FIXME: only show when diffposition.txt is set?
// FIXME: cut off after XXX lines
$lines_team = preg_split('/\n/', trim($runOutput['output_run']));
$lines_ref = preg_split('/\n/', trim($runOutput['output_reference']));
$diffs = [];
$firstErr = sizeof($lines_team) + 1;
$lastErr = -1;
$n = min(sizeof($lines_team), sizeof($lines_ref));
for ($i = 0; $i < $n; $i++) {
$lcs = Utils::computeLcsDiff($lines_team[$i], $lines_ref[$i]);
if ($lcs[0] === true) {
$firstErr = min($firstErr, $i);
$lastErr = max($lastErr, $i);
}
$diffs[] = $lcs[1];
}
$contextLines = 5;
$firstErr -= $contextLines;
$lastErr += $contextLines;
$firstErr = max(0, $firstErr);
$lastErr = min(sizeof($diffs) - 1, $lastErr);
$result = "<br/>\n<table class=\"lcsdiff output_text\">\n";
if ($firstErr > 0) {
$result .= "<tr><td class=\"linenr\">[...]</td><td/></tr>\n";
}
for ($i = $firstErr; $i <= $lastErr; $i++) {
$result .= "<tr><td class=\"linenr\">" . ($i + 1) . "</td><td>" . $diffs[$i] . "</td></tr>";
}
if ($lastErr < sizeof($diffs) - 1) {
$result .= "<tr><td class=\"linenr\">[...]</td><td/></tr>\n";
}
$result .= "</table>\n";
return $result;
}
/**
* Output a (optionally readonly) code editor for the given submission file.
* @param string|null $language Ace language to use
* @param bool $editable Whether to allow editing
* @param string $elementToUpdate HTML element to update when input changes
* @param string|null $filename If $language is null, filename to use to determine language
*/
public function codeEditor(
string $code,
string $index,
?string $language = null,
bool $editable = false,
string $elementToUpdate = '',
?string $filename = null
): string {
$editor = <<<HTML
<div class="editor" id="__EDITOR__">%s</div>
<script>
var __EDITOR__ = ace.edit("__EDITOR__");
__EDITOR__.setTheme("ace/theme/eclipse");
__EDITOR__.setOptions({ maxLines: Infinity });
__EDITOR__.setReadOnly(%s);
%s
document.getElementById("__EDITOR__").editor = __EDITOR__;
%s
</script>
HTML;
$rank = $index;
$id = sprintf('editor%s', $rank);
$code = Utils::specialchars($code);
if ($elementToUpdate) {
$extraForEdit = <<<JS
__EDITOR__.getSession().on('change', function() {
var textarea = document.getElementById("$elementToUpdate");
textarea.value = __EDITOR__.getSession().getValue();
});
JS;
} else {
$extraForEdit = '';
}
if ($language !== null) {
$mode = sprintf('__EDITOR__.getSession().setMode("ace/mode/%s");', $language);
} elseif ($filename !== null) {
$modeTemplate = <<<JS
var modelist = ace.require('ace/ext/modelist');
var filePath = "%s";
var mode = modelist.getModeForPath(filePath).mode;
__EDITOR__.getSession().setMode(mode);
JS;
$mode = sprintf($modeTemplate, Utils::specialchars($filename));
} else {
$mode = '';
}
return str_replace('__EDITOR__', $id,
sprintf($editor, $code, $editable ? 'false' : 'true', $mode, $extraForEdit));
}
protected function parseSourceDiff($difftext): string
{
$line = strtok((string)$difftext, "\n"); // first line
$return = '';
while ($line !== false && strlen($line) != 0) {
// Strip any additional DOS/MAC newline characters:
$line = trim($line, "\r\n");
switch (substr($line, 0, 1)) {
case '-':
$formdiffline = "<span class='diff-del'>" . Utils::specialchars($line) . "</span>";
break;
case '+':
$formdiffline = "<span class='diff-add'>" . Utils::specialchars($line) . "</span>";
break;
default:
$formdiffline = Utils::specialchars($line);
}
$return .= $formdiffline . "\n";
$line = strtok("\n");
}
return $return;
}
public function showDiff(SubmissionFile $newFile, SubmissionFile $oldFile): string
{
$differ = new Differ;
return $this->parseSourceDiff($differ->diff($oldFile->getSourcecode(), $newFile->getSourcecode()));
}
public function printContestStart(Contest $contest): string
{
$res = "scheduled to start ";
if (!$contest->getStarttimeEnabled()) {
$res = "start delayed, was scheduled ";
}
if ($this->printtime(Utils::now(), 'Ymd') == $this->printtime($contest->getStarttime(false), 'Ymd')) {
// Today
$res .= "at " . $this->printtime($contest->getStarttime(false));
} else {
// Print full date
$res .= "on " . $this->printtime($contest->getStarttime(false), 'D d M Y H:i:s T');
}
return $res;
}
public function customAssetFiles(string $type): array
{
if (in_array($type, ['css', 'js'])) {
return $this->dj->getAssetFiles("$type/custom");
}
return [];
}
/**
* Print the relative time in h:mm:ss[.uuuuuu] format.
*/
public function printTimeRelative(float $relativeTime, bool $useMicroseconds = false): string
{
$sign = $relativeTime < 0 ? '-' : '';
$relativeTime = abs($relativeTime);
$fracString = '';
if ($useMicroseconds) {
$fracString = explode('.', sprintf('%.6f', $relativeTime))[1];
$relativeTime = (int)floor($relativeTime);
} else {
// For negative times we still want to floor, but we've
// already removed the sign, so take ceil() if negative.
$relativeTime = (int)($sign == '-' ? ceil($relativeTime) : floor($relativeTime));
}
$h = (int)floor($relativeTime / 3600);
$relativeTime %= 3600;
$m = (int)floor($relativeTime / 60);
$relativeTime %= 60;
$s = (int)$relativeTime;
if ($useMicroseconds) {
$s .= '.' . $fracString;
}
return sprintf($sign . '%01d:%02d:%02d' . $fracString, $h, $m, $s);
}
/**
* Display the scoretime for the given time.
* @param string|float $time
*/
public function scoreTime($time): int
{
return Utils::scoretime($time, (bool)$this->config->get('score_in_seconds'));
}
public function calculatePenaltyTime(bool $solved, int $num_submissions): int
{
return Utils::calcPenaltyTime($solved, $num_submissions, (int)$this->config->get('penalty_time'),
(bool)$this->config->get('score_in_seconds'));
}
/**
* Print the given description, collapsing it by default if it is too big.
*/