mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-12-29 11:31:53 +00:00
363 lines
9.0 KiB
PHP
363 lines
9.0 KiB
PHP
<?php
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/**
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* This is a static class
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* Unlike other classes like UOJProblem, UOJSubmission, UOJUserBlog, etc.,
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* this class does not use UOJDataTrait!
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* The main reason is that user_info is used for too many times.
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* So everything should be done in a lightweight way.
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*/
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class UOJUser {
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const MAX_UA_LEN = 300;
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const MAX_HISTORY_LEN = 20;
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public static $visibility_codes = [
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'all' => [
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'html' => '',
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],
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'self' => [
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'html' => '<small class="text-muted">（仅自己可见）</small>',
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],
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];
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public static function query($username) {
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if (!validateUsername($username)) {
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return null;
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}
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return DB::selectFirst([
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"select * from user_info",
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"where", ['username' => $username]
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]);
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}
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public static function checkBasicInfo($user, $cfg = []) {
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$cfg += [
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'check_email' => true,
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];
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if (!isset($user['username']) || !validateUsername($user['username'])) {
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throw new UOJInvalidArgumentException('无效用户名');
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}
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if (UOJUser::query($user['username'])) {
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throw new UOJInvalidArgumentException('用户名已存在');
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}
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if (!isset($user['password']) || !validatePassword($user['password'])) {
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throw new UOJInvalidArgumentException('无效密码');
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}
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if ($cfg['check_email'] && (!isset($user['email']) || !validateEmail($user['email']))) {
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throw new UOJInvalidArgumentException('无效电子邮箱');
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}
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}
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public static function register($user, $cfg = []) {
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UOJUser::checkBasicInfo($user, $cfg);
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$password = getPasswordToStore($user['password'], $user['username']);
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$info = [
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'username' => $user['username'],
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'email' => $user['email'],
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'school' => $user['school'] ?: '',
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'password' => $password,
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'svn_password' => uojRandString(20),
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'register_time' => DB::now(),
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'extra' => '{}'
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];
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// 0 means non-existence, false means DB error.
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if (DB::selectExists("select 1 from user_info") === 0) {
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$info['usergroup'] = 'S';
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}
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DB::insert([
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"insert into user_info",
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DB::bracketed_fields(array_keys($info)),
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"values", DB::tuple($info)
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]);
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return $user;
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}
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public static function registerTmpAccount($user, $cfg = []) {
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UOJUser::checkBasicInfo($user, $cfg);
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$password = getPasswordToStore($user['password'], $user['username']);
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$extra = [
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'permissions' => [
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'problems' => [
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'view' => false,
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'download_testdata' => false,
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'create' => false,
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'manage' => false,
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],
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'contests' => [
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'view' => false,
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'register' => false,
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'create' => false,
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'start_final_test' => false,
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'manage' => false,
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],
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'lists' => [
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'view' => false,
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'create' => false,
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'manage' => false,
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],
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'groups' => [
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'view' => false,
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'create' => false,
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'manage' => false,
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],
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'blogs' => [
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'view' => false,
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'create' => false,
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'manage' => false,
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],
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'users' => [
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'view' => false,
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'upload_image' => false,
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],
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],
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];
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$info = [
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'username' => $user['username'],
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'usergroup' => 'T',
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'email' => $user['email'],
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'school' => $user['school'] ?: '',
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'password' => $password,
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'svn_password' => uojRandString(20),
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'register_time' => DB::now(),
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'expiration_time' => $user['expiration_time'],
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'extra' => json_encode($extra),
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];
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DB::insert([
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"insert into user_info",
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DB::bracketed_fields(array_keys($info)),
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"values", DB::tuple($info)
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]);
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return $user;
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}
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public static function registerTmpACMTeamAccount($team, $cfg = []) {
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UOJUser::checkBasicInfo($team, $cfg);
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if (!isset($team['expiration_time'])) {
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throw new UOJInvalidArgumentException('无效账号过期时间');
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}
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$password = getPasswordToStore($team['password'], $team['username']);
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$team['extra'] = json_encode([
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'acm' => [
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'contest_name' => $team['contest_name'],
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'team_name' => $team['team_name'],
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'members' => $team['members']
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]
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], JSON_UNESCAPED_UNICODE);
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DB::insert([
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"insert into user_info",
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"(usergroup, username, email, password, svn_password, register_time, expiration_time, extra)",
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"values", DB::tuple([
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'T', $team['username'], $team['email'], $password, uojRandString(20),
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DB::now(), $team['expiration_time'], $team['extra']
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])
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]);
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return $team;
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}
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public static function registerTmpACMTeamAccountFromText($text, $contest_name, $expiration_time) {
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$fields = array_map('trim', str_getcsv($text));
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if (count($fields) < 7) {
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throw new UOJInvalidArgumentException('格式不合规范');
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}
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$num = (int)$fields[4];
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if (count($fields) != 5 + $num * 2) {
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throw new UOJInvalidArgumentException('格式不合规范');
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}
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$mem = [];
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for ($i = 0; $i < $num; $i++) {
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$mem[] = [
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'name' => $fields[5 + $i * 2],
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'organization' => $fields[5 + $i * 2 + 1]
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];
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}
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$team = [
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'username' => $fields[0],
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'password' => hash_hmac('md5', $fields[1], getPasswordClientSalt()),
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'email' => $fields[2],
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'contest_name' => $contest_name,
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'expiration_time' => $expiration_time,
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'team_name' => $fields[3],
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'members' => $mem
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];
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return UOJUser::registerTmpACMTeamAccount($team);
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}
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public static function getAccountStatus($user) {
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if ($user['usergroup'] == 'B') {
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return 'banned';
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} elseif ($user['usergroup'] == 'T' && UOJTime::$time_now > new DateTime($user['expiration_time'])) {
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return 'expired';
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} else {
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return 'ok';
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}
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}
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public static function getLink($user) {
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if (is_string($user)) {
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$info = UOJUser::query($user);
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if (!$info) {
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return $user;
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} else {
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$user = $info;
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}
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}
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if ($user['usergroup'] == 'B') {
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return '<span class="text-danger">' . $user['username'] . '</span>';
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}
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return HTML::tag('span', ['class' => 'uoj-username', 'data-realname' => trim(HTML::escape($user['realname']))], $user['username']);
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}
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public static function getUpdatedExtraVisitHistory($history, $cur) {
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$new_h = [];
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$oldest = clone UOJTime::$time_now;
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$oldest->modify('-1 month');
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for ($i = 0; $i < count($history); $i++) {
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if (UOJTime::str2time($history[$i]['last']) >= $oldest) {
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$new_h[] = $history[$i];
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}
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}
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if ($cur === null) {
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return $new_h;
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}
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for ($i = 0; $i < count($new_h); $i++) {
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if ($new_h[$i]['addr'] == $cur['addr'] && $new_h[$i]['ua'] == $cur['ua']) {
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$new_h[$i]['last'] = $cur['last'];
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return $new_h;
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}
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}
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if (count($new_h) < UOJUser::MAX_HISTORY_LEN) {
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$new_h[] = $cur;
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return $new_h;
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}
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$p = 0;
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for ($i = 1; $i < count($new_h); $i++) {
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if (strcmp($new_h[$i]['last'], $new_h[$p]['last']) < 0) {
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$p = $i;
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}
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}
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$new_h[$p] = $cur;
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return $new_h;
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}
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public static function sortExtraVisitHistory(&$history) {
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usort($history, function ($a, $b) {
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return -strcmp($a['last'], $b['last']);
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});
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}
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public static function getExtra($user) {
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$extra = json_decode($user['extra'], true);
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if ($extra === null) {
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$extra = [];
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}
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mergeConfig($extra, [
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'permissions' => UOJContext::getMeta('users_default_permissions'),
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'social' => [
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'codeforces' => null,
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'github' => null,
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'website' => null,
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],
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'image_hosting' => [
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'total_size_limit' => 104857600, // 100 MiB
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],
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'history' => [],
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'show_email' => 'all',
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'show_qq' => 'all',
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'avatar_source' => 'gravatar',
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]);
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return $extra;
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}
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public static function checkVisibility(string $code, array $user, ?array $viewer) {
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switch ($code) {
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case 'all':
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return true;
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case 'self':
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return $viewer && $user['username'] === $viewer['username'];
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default:
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return false;
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}
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}
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public static function getVisibilityHTML(string $code) {
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return static::$visibility_codes[$code]['html'];
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}
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public static function viewerCanSeeComponents(array $user, ?array $viewer) {
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// assert($viewer can view $user's probile). This is always true because everyone's profile is public.
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$extra = UOJUser::getExtra($user);
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return [
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'email' => UOJUser::checkVisibility($extra['show_email'], $user, $viewer),
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'qq' => UOJUser::checkVisibility($extra['show_qq'], $user, $viewer)
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];
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}
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public static function checkPermission(array $user = null, string $perm = '') {
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if ($user == null) {
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return false;
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}
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$extra = UOJUser::getExtra($user);
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$cur = $extra['permissions'];
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foreach (explode('.', $perm) as $p) {
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if (!is_assoc($cur) || !isset($cur[$p])) {
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return false;
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}
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$cur = $cur[$p];
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}
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return $cur;
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}
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public static function updateVisitHistory($user, $info) {
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$extra = UOJUser::getExtra($user);
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$cur = [
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'addr' => $info['remote_addr'],
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'ua' => substr($info['http_user_agent'], 0, UOJUser::MAX_UA_LEN),
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'last' => UOJTime::$time_now_str
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];
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$extra['history'] = UOJUser::getUpdatedExtraVisitHistory($extra['history'], $cur);
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$user['remote_addr'] = $info['remote_addr'];
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$user['http_x_forwarded_for'] = $info['http_x_forwarded_for'];
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$user['extra'] = json_encode($extra, JSON_UNESCAPED_UNICODE);
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DB::update([
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'update user_info',
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'set', [
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'remote_addr' => $user['remote_addr'],
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'http_x_forwarded_for' => $user['http_x_forwarded_for'],
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'last_visit_time' => DB::now(),
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'extra' => $user['extra']
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], "where", ["username" => $user['username']]
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]);
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return $user;
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}
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}
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