function error($msg)
{
global $cfg;
ob_end_clean();
html_reset();
html_header("Error");
?>
<h1>Error Detected</h1>
<p>Sorry for the inconvenience.
Please <a href="mailto:<?php
echo $cfg['site']['email'];
?>
">email</a> the webmaster if the
problem persists.</p>
<p><a href="index.php">Click here</a> to return to the home-page.</p>
<hr />
<p><strong>Description:</strong> <?php
echo $msg;
?>
</p>
<hr />
<p><b>Backtrace:</b></p>
<?php
if ($cfg['site']['debug']) {
echo "<pre>";
print_r(debug_backtrace());
echo "</pre>";
} else {
echo "Display of debugging information disabled by admin.";
}
html_footer();
exit;
}
function manage_display($task)
{
global $cfg, $db, $cache;
if ($task == '') {
$task = 'status';
}
// Verify that the user has management perms for the selected contest
$res =& db_query('contest_by_id', $_GET['id']);
$res->fetchInto($row);
$res->free();
if ($_SESSION['user_id'] != $row['manager'] && !auth_user_in_group('Administrators')) {
error("Access denied. You are not the contest-manager for this contest.");
}
switch ($task) {
case 'status':
$table = new HTML_Table();
// Re-use $row from above
if ($row['show_future'] == 1) {
$status = 'Hidden (not activated yet)';
} else {
if ($row['begin_future'] == 1) {
$status = 'Not started';
} else {
if ($row['end_future'] == 1) {
$status = 'Running';
} else {
$status = 'Ended';
}
}
}
$table->addRow(array('Contest status: ', $status), null, 'TH');
$table->addRow(array('Name: ', $row['name']));
$table->addRow(array('Description: ', $row['description']));
$table->addRow(array('Activation time: ', $row['show_time']));
$table->addRow(array('Begin time: ', $row['begin_time']));
$table->addRow(array('End time: ', $row['end_time']));
if ($row['team_size'] != 1) {
$table->addRow(array('Max size of team: ', $row['team_size']));
$prefix = 'Teams';
} else {
$table->addRow(array('Individual event: ', 'Yes'));
$prefix = 'Participants';
}
// No. of registered teams
$res =& db_query('count_teams_by_contest_id', $_GET['id']);
$res->fetchInto($row);
$res->free();
$table->addRow(array($prefix . ' registered: ', $row['count']));
// No. of teams logged in
$res =& db_query('count_last_teams_by_contest_id', $_GET['id']);
$res->fetchInto($row);
$res->free();
$table->addRow(array($prefix . ' seen in last 30 minutes: ', $row['count']));
$table->altRowAttributes(1, null, array("class" => "altrow"));
echo '<div class="overflow">' . $table->toHtml() . '</div>';
break;
case 'problems':
// display problem info as table
$table = new HTML_Table();
$res =& db_query('problems_by_contest_id', $_GET['id']);
if (!$res->fetchInto($row)) {
?>
<p>No problems added yet.</p>
<?php
} else {
// extra attributes
$row['content'] = null;
$row['actions'] = null;
$table->addRow(array_keys($row), null, 'TH');
while ($row) {
$row['content'] = "<a href=\"index.php?view=manage&task=show_problem&id={$_GET['id']}&prob_id={$row['prob_id']}\">show</a>";
$row['actions'] = "<a href=\"index.php?view=manage&task=edit_problem&id={$_GET['id']}&prob_id={$row['prob_id']}\">edit</a>, " . "<a href=\"index.php?view=manage&task=del_problem&id={$_GET['id']}&prob_id={$row['prob_id']}\">delete</a>";
$table->addRow(array_values($row));
$res->fetchInto($row);
}
$res->free();
// display tables
$table->altRowAttributes(1, null, array("class" => "altrow"));
echo '<div class="overflow">' . $table->toHtml() . '</div>';
}
echo "<hr />";
// form for adding a problem
$form = new HTML_QuickForm('problemAddForm', 'post', selflink());
$form->addElement('header', null, 'Add a problem');
$form->addElement('text', 'prob_id', 'Name (one word ID): ');
$form->addElement('text', 'summary', 'Summary: ');
$form->addElement('text', 'weight', 'Points weightage: ');
$form->addElement('text', 'time_limit', 'Time limit: ');
$form->addElement('text', 'mem_limit', 'Memory limit: ');
$elem =& $form->addElement('textarea', 'content', 'Problem content (XML): ');
$elem->setRows(10);
$elem->setCols(80);
$form->addElement('submit', null, 'Submit');
$form->applyFilter('prob_id', 'trim');
$form->applyFilter('summary', 'trim');
$form->applyFilter('weight', 'trim');
$form->applyFilter('time_limit', 'trim');
$form->applyFilter('mem_limit', 'trim');
$form->addRule('prob_id', 'Problem ID is required', 'required', null, 'client');
$form->addRule('summary', 'Problem summary is required', 'required', null, 'client');
$form->addRule('weight', 'Points weightage is required', 'required', null, 'client');
$form->addRule('time_limit', 'Time limit is required', 'required', null, 'client');
$form->addRule('mem_limit', 'Memory limit is required', 'required', null, 'client');
$form->addRule('content', 'Problem content in XML is required', 'required', null, 'client');
if ($form->validate()) {
$data = $form->getSubmitValues();
$errs = problem_check($data['content']);
if ($errs == null) {
$data['contest_id'] = $_GET['id'];
$res =& $db->autoExecute('problems', $data, DB_AUTOQUERY_INSERT);
if (PEAR::isError($res)) {
error($res->toString());
}
$cache->remove(problem_cache_id($_GET['id'], $data['prob_id']) . '.htm');
$cache->remove(problem_cache_id($_GET['id'], $data['prob_id']) . '.prob');
redirect('index.php?view=manage&task=problems&id=' . $_GET['id']);
} else {
?>
<p><b>Error:</b> The problem could not be added due to the following errors encountered while
parsing the problem XML file. Please fix them and try submitting again.</p>
<?php
echo "<ol class=\"errors\">\n";
foreach ($errs as $line) {
echo "<li>{$line}</li>\n";
}
echo "</ol>\n<hr />\n";
}
}
$form->display();
break;
case 'del_problem':
db_query('del_problem_by_id', array($_GET['prob_id'], $_GET['id']));
redirect('index.php?view=manage&task=problems&id=' . $_GET['id']);
break;
case 'edit_problem':
$res =& db_query('problem_by_id', array($_GET['prob_id'], $_GET['id']));
$res->fetchInto($row);
$res->free();
// Get XML content too
$res =& db_query('problem_content_by_id', array($_GET['prob_id'], $_GET['id']));
$res->fetchInto($row2);
$res->free();
$row['content'] =& $row2['content'];
// form for editing a problem
$form = new HTML_QuickForm('problemAddForm', 'post', selflink());
$form->addElement('header', null, 'Edit a problem');
$form->addElement('text', 'prob_id', 'Name (one word ID): ');
$form->addElement('text', 'summary', 'Summary: ');
$form->addElement('text', 'weight', 'Points weightage: ');
$form->addElement('text', 'time_limit', 'Time limit: ');
$form->addElement('text', 'mem_limit', 'Memory limit: ');
$elem =& $form->addElement('textarea', 'content', 'Problem content (XML): ');
$elem->setRows(10);
$elem->setCols(80);
$form->addElement('submit', null, 'Submit');
$form->applyFilter('prob_id', 'trim');
$form->applyFilter('summary', 'trim');
$form->applyFilter('weight', 'trim');
$form->applyFilter('time_limit', 'trim');
$form->applyFilter('mem_limit', 'trim');
$form->addRule('prob_id', 'Problem ID is required', 'required', null, 'client');
$form->addRule('summary', 'Problem summary is required', 'required', null, 'client');
$form->addRule('weight', 'Points weightage is required', 'required', null, 'client');
$form->addRule('time_limit', 'Time limit is required', 'required', null, 'client');
$form->addRule('mem_limit', 'Memory limit is required', 'required', null, 'client');
$form->addRule('content', 'Problem content in XML is required', 'required', null, 'client');
$form->setDefaults($row);
if ($form->validate()) {
$data = $form->getSubmitValues();
$errs = problem_check($data['content']);
if ($errs == null) {
//$data['contest_id'] = $_GET['id'];
$data['version'] = $row['version'] + 1;
// increment version
$res =& $db->autoExecute('problems', $data, DB_AUTOQUERY_UPDATE, 'contest_id=' . $_GET['id'] . " AND prob_id='" . $data['prob_id'] . "'");
if (PEAR::isError($res)) {
error($res->toString());
}
$cache->remove(problem_cache_id($_GET['id'], $data['prob_id']) . '.htm');
$cache->remove(problem_cache_id($_GET['id'], $data['prob_id']) . '.prob');
redirect('index.php?view=manage&task=problems&id=' . $_GET['id']);
} else {
?>
<p><b>Error:</b> The changes could not be saved due to the following errors encountered while
parsing the problem XML file. Please fix them and try submitting again.</p>
<?php
echo "<ol class=\"errors\">\n";
foreach ($errs as $line) {
echo "<li>{$line}</li>\n";
}
echo "</ol>\n<hr />\n";
}
}
$form->display();
break;
case 'show_problem':
$res =& db_query('problem_by_id', array($_GET['prob_id'], $_GET['id']));
$res->fetchInto($problem);
$res->free();
problem_display($problem);
break;
case 'settings':
// Re-using $row from above
// form for editing the contest
$form = new HTML_QuickForm('contestEditForm', 'post', selflink());
$form->addElement('header', null, "Edit contest {$row['name']} (id: {$row['contest_id']})");
$form->addElement('text', 'name', 'Name: ');
$form->addElement('text', 'description', 'Description: ');
$elem =& $form->addElement('text', 'team_size', 'Size of team: ');
$elem->setValue('1');
$date = getdate();
$form->addElement('date', 'show_time', 'Activation time: ', array('format' => 'dMY H:i', 'minYear' => $date['year'], 'maxYear' => $date['year'] + 5));
$form->addElement('date', 'begin_time', 'Begin time: ', array('format' => 'dMY H:i', 'minYear' => $date['year'], 'maxYear' => $date['year'] + 5));
$form->addElement('date', 'end_time', 'End time: ', array('format' => 'dMY H:i', 'minYear' => $date['year'], 'maxYear' => $date['year'] + 5));
$form->addElement('text', 'rules', 'Rules URL: ');
$form->addElement('submit', null, 'Submit');
// convert date format and store default values
$row['show_time'] = sql2form_datetime($row['show_time']);
$row['begin_time'] = sql2form_datetime($row['begin_time']);
$row['end_time'] = sql2form_datetime($row['end_time']);
$form->setDefaults($row);
$form->applyFilter('name', 'trim');
$form->applyFilter('description', 'trim');
$form->applyFilter('team_size', 'trim');
$form->addRule('name', 'Contest name is required.', 'required', null, 'client');
$form->addRule('team_size', 'Team size is required.', 'required', null, 'client');
// validate or display form
if ($form->validate()) {
$data = $form->getSubmitValues();
$data['show_time'] = form2sql_datetime($data['show_time']);
$data['begin_time'] = form2sql_datetime($data['begin_time']);
$data['end_time'] = form2sql_datetime($data['end_time']);
$db->autoExecute('contests', $data, DB_AUTOQUERY_UPDATE, 'contest_id=' . $_GET['id']);
if (PEAR::isError($res)) {
error($db->toString());
}
redirect('index.php?view=manage&id=' . $_GET['id']);
} else {
$form->display();
}
break;
case 'submissions':
// Re-use $row from above
if ($row['end_future'] != '1') {
// Contest has ended, show system test button
if ($row['tested'] != 1) {
?>
<p>Contest has ended.
<a class="button" href="index.php?view=manage&&task=test&updateratings=false&id=<?php
echo $_GET['id'];
?>
">Test and grade all submissions.</a>
<a class="button" href="index.php?view=manage&task=test&updateratings=true&id=<?php
echo $_GET['id'];
?>
">Update Ratings</a>
</p>
<?php
} else {
?>
<p>Contest has ended and system tests are over.
<a class="button" href="index.php?view=manage&task=test&id=<?php
echo $_GET['id'];
?>
">Re-run system tests.</a>
</p>
<?php
}
}
// Show table of all solutions in the contest
$table = new HTML_Table();
$res =& db_query('solutions_by_contest_id', $_GET['id']);
if (!$res->fetchInto($row)) {
// If no solutions in yet
?>
<p>Sorry, no solutions have been submitted yet.</p>
<?php
} else {
$table->addRow(array_keys($row), null, 'TH');
if ($row['score'] == '') {
$row['score'] = 'n/a';
}
if ($row['passed'] == '') {
$row['passed'] = 'n/a';
}
$table->addRow(array_values($row));
while ($res->fetchInto($row)) {
if ($row['score'] == '') {
$row['score'] = 'n/a';
}
if ($row['passed'] == '') {
$row['passed'] = 'n/a';
}
$table->addRow(array_values($row));
}
$table->altRowAttributes(1, null, array("class" => "altrow"));
echo '<div class="overflow">' . $table->toHtml() . '</div>';
}
break;
case 'test':
require_once 'tester.php';
ob_end_clean();
html_reset();
html_header(null, $cfg["dir"]["themes"] . '/' . $_SESSION["theme"] . '.css', $cfg["dir"]["themes"] . '/' . $_SESSION["theme"] . '-ie.css', null, "submit_frame");
$contest_id = $_GET['id'];
$update_ratings = $_GET['updateratings'];
session_write_close();
test_contest($update_ratings, $contest_id);
echo ' <a class="white" href="index.php?view=statistics&task=contest&id=' . $_GET['id'] . '">See the results.</a>';
html_footer();
exit;
}
}
