mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-09 16:38:41 +00:00
306 lines
6.7 KiB
PHP
306 lines
6.7 KiB
PHP
<?php
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function mergeConfig(&$config, $default_config) {
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foreach ($default_config as $key => $val) {
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if (!isset($config[$key])) {
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$config[$key] = $val;
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} elseif (is_array($config[$key])) {
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mergeConfig($config[$key], $val);
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}
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}
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}
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function is_assoc($arr) {
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if (!is_array($arr)) {
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return false;
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}
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foreach (array_keys($arr) as $key) {
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if (!is_int($key)) {
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return true;
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}
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}
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return false;
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}
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function strStartWith($str, $pre) {
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return substr($str, 0, strlen($pre)) === $pre;
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}
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function strEndWith($str, $suf) {
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return substr($str, -strlen($suf)) === $suf;
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}
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function strOmit($str, $len) {
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if (strlen($str) <= $len + 3) {
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return $str;
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} else {
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return substr($str, 0, $len) . '...';
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}
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}
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function uojTextEncode($str, $config = array()) {
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mergeConfig($config, [
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'allow_CR' => false,
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'html_escape' => false
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]);
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$allow = array();
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for ($c = 32; $c <= 126; $c++) {
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$allow[chr($c)] = true;
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}
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$allow["\n"] = true;
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$allow[" "] = true;
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$allow["\t"] = true;
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if ($config['allow_CR']) {
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$allow["\r"] = true;
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}
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$len = strlen($str);
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$ok = true;
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for ($i = 0; $i < $len; $i++) {
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$c = $str[$i];
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if (!isset($allow[$c])) {
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$ok = false;
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}
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}
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if ($ok && mb_check_encoding($str, 'utf-8')) {
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if (!$config['html_escape']) {
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return $str;
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} else {
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return HTML::escape($str);
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}
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} else {
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$len = strlen($str);
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$res = '';
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$i = 0;
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while ($i < $len) {
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$c = $str[$i];
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if (ord($c) < 128) {
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if (isset($allow[$c])) {
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if ($config['html_escape']) {
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if ($c == '&') {
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$res .= '&';
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} elseif ($c == '"') {
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$res .= '"';
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} elseif ($c == '<') {
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$res .= '<';
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} elseif ($c == '>') {
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$res .= '>';
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} else {
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$res .= $c;
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}
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} else {
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$res .= $c;
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}
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} else {
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$res .= '<b>\x' . bin2hex($c) . '</b>';
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}
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$i++;
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} else {
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$ok = false;
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$cur = $c;
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for ($j = $i + 1; $j < $i + 4 && $j < $len; $j++) {
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$cur .= $str[$j];
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if (mb_check_encoding($cur, 'utf-8')) {
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$ok = true;
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break;
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}
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}
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if ($ok) {
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$res .= $cur;
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$i = $j + 1;
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} else {
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$res .= '<b>\x' . bin2hex($c) . '</b>';
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$i++;
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}
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}
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}
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return $res;
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}
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}
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function base64url_encode($data) {
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return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
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}
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function base64url_decode($data) {
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return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT));
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}
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function blog_name_encode($name) {
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$name = str_replace('-', '_', $name);
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if (!strStartWith($name, '_') && !strEndWith($name, '_')) {
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$name = str_replace('_', '-', $name);
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}
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$name = strtolower($name);
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return $name;
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}
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function blog_name_decode($name) {
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$name = str_replace('-', '_', $name);
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$name = strtolower($name);
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return $name;
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}
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function camelize($str, $delimiters = '-_') {
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$str = ucwords($str, $delimiters);
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foreach (str_split($delimiters) as $c) {
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$str = str_replace($c, '', $str);
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}
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return $str;
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}
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function isSuperUser($user) {
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return $user != null && $user['usergroup'] == 'S';
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}
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function isTmpUser($user) {
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return $user != null && $user['usergroup'] == 'T';
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}
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function isBannedUser($user) {
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return $user != null && $user['usergroup'] == 'B';
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}
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function getProblemExtraConfig($problem) {
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$extra_config = json_decode($problem['extra_config'], true);
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$default_extra_config = array(
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'view_content_type' => 'ALL',
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'view_all_details_type' => 'ALL',
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'view_details_type' => 'ALL',
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'view_solution_type' => 'ALL',
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'submit_solution_type' => 'ALL_AFTER_AC',
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);
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mergeConfig($extra_config, $default_extra_config);
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return $extra_config;
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}
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function getProblemSubmissionRequirement($problem) {
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return json_decode($problem['submission_requirement'], true);
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}
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function getProblemCustomTestRequirement($problem) {
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$extra_config = json_decode($problem['extra_config'], true);
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if (isset($extra_config['custom_test_requirement'])) {
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return $extra_config['custom_test_requirement'];
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} else {
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$answer = array(
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'name' => 'answer',
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'type' => 'source code',
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'file_name' => 'answer.code'
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);
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foreach (getProblemSubmissionRequirement($problem) as $req) {
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if ($req['name'] == 'answer' && $req['type'] == 'source code' && isset($req['languages'])) {
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$answer['languages'] = $req['languages'];
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}
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}
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return array(
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$answer,
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array(
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'name' => 'input',
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'type' => 'text',
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'file_name' => 'input.txt'
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)
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);
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}
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}
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function sendSystemMsg($username, $title, $content) {
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DB::insert([
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"insert into user_system_msg",
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"(receiver, title, content, send_time)",
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"values", DB::tuple([$username, $title, $content, DB::now()])
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]);
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sendEmail($username, $title, $content);
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}
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function sendEmail($username, $title, $content, $priority = 0) {
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DB::insert([
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"insert into emails",
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"(receiver, subject, content, created_at, priority)",
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"values", DB::tuple([$username, $title, $content, DB::now(), $priority])
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]);
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}
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function retry_loop(callable $f, $retry = 5, $ms = 10) {
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for ($i = 0; $i < $retry; $i++) {
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$ret = $f();
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if ($ret !== false) {
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return $ret;
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}
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usleep($ms * 1000);
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}
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return $ret;
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}
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function getAbsoluteUrl($relativeUrl, $baseUrl) {
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// if already absolute URL
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if (parse_url($relativeUrl, PHP_URL_SCHEME) !== null) {
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return $relativeUrl;
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}
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// queries and anchors
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if ($relativeUrl[0] === '#' || $relativeUrl[0] === '?') {
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return $baseUrl . $relativeUrl;
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}
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// parse base URL and convert to: $scheme, $host, $path, $query, $port, $user, $pass
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extract(parse_url($baseUrl));
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// if base URL contains a path remove non-directory elements from $path
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if (isset($path) === true) {
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$path = preg_replace('#/[^/]*$#', '', $path);
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} else {
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$path = '';
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}
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// if realtive URL starts with //
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if (substr($relativeUrl, 0, 2) === '//') {
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return $scheme . ':' . $relativeUrl;
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}
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// if realtive URL starts with /
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if ($relativeUrl[0] === '/') {
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$path = null;
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}
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$abs = null;
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// if realtive URL contains a user
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if (isset($user) === true) {
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$abs .= $user;
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// if realtive URL contains a password
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if (isset($pass) === true) {
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$abs .= ':' . $pass;
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}
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$abs .= '@';
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}
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$abs .= $host;
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// if realtive URL contains a port
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if (isset($port) === true) {
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$abs .= ':' . $port;
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}
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$abs .= $path . '/' . $relativeUrl . (isset($query) === true ? '?' . $query : null);
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// replace // or /./ or /foo/../ with /
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$re = ['#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#'];
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for ($n = 1; $n > 0; $abs = preg_replace($re, '/', $abs, -1, $n)) {
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}
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// return absolute URL
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return $scheme . '://' . $abs;
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}
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function array_to_csv($data, $delimiter = ',', $enclosure = '"', $escape_char = "\\") {
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$f = fopen('php://memory', 'r+');
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foreach ($data as $item) {
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fputcsv($f, $item, $delimiter, $enclosure, $escape_char);
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}
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rewind($f);
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return stream_get_contents($f);
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}
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