[
'html' => '',
],
'self' => [
'html' => '（仅自己可见）',
],
];
public static function query($username) {
if (!validateUsername($username)) {
return null;
}
return DB::selectFirst([
"select * from user_info",
"where", ['username' => $username]
]);
}
public static function checkBasicInfo($user, $cfg = []) {
$cfg += [
'check_email' => true,
];
if (!isset($user['username']) || !validateUsername($user['username'])) {
throw new UOJInvalidArgumentException('无效用户名');
}
if (UOJUser::query($user['username'])) {
throw new UOJInvalidArgumentException('用户名已存在');
}
if (!isset($user['password']) || !validatePassword($user['password'])) {
throw new UOJInvalidArgumentException('无效密码');
}
if ($cfg['check_email'] && (!isset($user['email']) || !validateEmail($user['email']))) {
throw new UOJInvalidArgumentException('无效电子邮箱');
}
}
public static function register($user, $cfg = []) {
UOJUser::checkBasicInfo($user, $cfg);
$password = getPasswordToStore($user['password'], $user['username']);
$info = [
'username' => $user['username'],
'email' => $user['email'],
'school' => $user['school'],
'password' => $password,
'svn_password' => uojRandString(20),
'register_time' => DB::now(),
'extra' => '{}'
];
// 0 means non-existence, false means DB error.
if (DB::selectExists("select 1 from user_info") === 0) {
$info['usergroup'] = 'S';
}
DB::insert([
"insert into user_info",
DB::bracketed_fields(array_keys($info)),
"values", DB::tuple($info)
]);
return $user;
}
public static function registerTmpACMTeamAccount($team, $cfg = []) {
UOJUser::checkBasicInfo($team, $cfg);
if (!isset($team['expiration_time'])) {
throw new UOJInvalidArgumentException('无效账号过期时间');
}
$password = getPasswordToStore($team['password'], $team['username']);
$team['extra'] = json_encode([
'acm' => [
'contest_name' => $team['contest_name'],
'team_name' => $team['team_name'],
'members' => $team['members']
]
], JSON_UNESCAPED_UNICODE);
DB::insert([
"insert into user_info",
"(usergroup, username, email, password, svn_password, register_time, expiration_time, extra)",
"values", DB::tuple([
'T', $team['username'], $team['email'], $password, uojRandString(20),
DB::now(), $team['expiration_time'], $team['extra']
])
]);
return $team;
}
public static function registerTmpACMTeamAccountFromText($text, $contest_name, $expiration_time) {
$fields = array_map('trim', str_getcsv($text));
if (count($fields) < 7) {
throw new UOJInvalidArgumentException('格式不合规范');
}
$num = (int)$fields[4];
if (count($fields) != 5 + $num * 2) {
throw new UOJInvalidArgumentException('格式不合规范');
}
$mem = [];
for ($i = 0; $i < $num; $i++) {
$mem[] = [
'name' => $fields[5 + $i * 2],
'organization' => $fields[5 + $i * 2 + 1]
];
}
$team = [
'username' => $fields[0],
'password' => hash_hmac('md5', $fields[1], getPasswordClientSalt()),
'email' => $fields[2],
'contest_name' => $contest_name,
'expiration_time' => $expiration_time,
'team_name' => $fields[3],
'members' => $mem
];
return UOJUser::registerTmpACMTeamAccount($team);
}
public static function getAccountStatus($user) {
if ($user['usergroup'] == 'B') {
return 'banned';
} elseif ($user['usergroup'] == 'T' && UOJTime::$time_now > new DateTime($user['expiration_time'])) {
return 'expired';
} else {
return 'ok';
}
}
public static function getLink($user) {
if (is_string($user)) {
$info = UOJUser::query($user);
if (!$info) {
return $user;
} else {
$user = $info;
}
}
if ($user['usergroup'] == 'B') {
return '' . $user['username'] . '';
}
return HTML::tag('span', ['class' => 'uoj-username', 'data-realname' => trim(HTML::escape($user['realname']))], $user['username']);
}
public static function getUpdatedExtraVisitHistory($history, $cur) {
$new_h = [];
$oldest = clone UOJTime::$time_now;
$oldest->modify('-1 month');
for ($i = 0; $i < count($history); $i++) {
if (UOJTime::str2time($history[$i]['last']) >= $oldest) {
$new_h[] = $history[$i];
}
}
if ($cur === null) {
return $new_h;
}
for ($i = 0; $i < count($new_h); $i++) {
if ($new_h[$i]['addr'] == $cur['addr'] && $new_h[$i]['ua'] == $cur['ua']) {
$new_h[$i]['last'] = $cur['last'];
return $new_h;
}
}
if (count($new_h) < UOJUser::MAX_HISTORY_LEN) {
$new_h[] = $cur;
return $new_h;
}
$p = 0;
for ($i = 1; $i < count($new_h); $i++) {
if (strcmp($new_h[$i]['last'], $new_h[$p]['last']) < 0) {
$p = $i;
}
}
$new_h[$p] = $cur;
return $new_h;
}
public static function sortExtraVisitHistory(&$history) {
usort($history, function ($a, $b) {
return -strcmp($a['last'], $b['last']);
});
}
public static function getExtra($user) {
$extra = json_decode($user['extra'], true);
if ($extra === null) {
$extra = [];
}
mergeConfig($extra, [
'social' => [
'codeforces' => null,
'github' => null,
'website' => null,
],
'image_hosting' => [
'total_size_limit' => 104857600, // 100 MiB
],
'history' => [],
'show_email' => 'all',
'show_qq' => 'all',
'avatar_source' => 'gravatar',
]);
return $extra;
}
public static function checkVisibility(string $code, array $user, ?array $viewer) {
switch ($code) {
case 'all':
return true;
case 'self':
return $viewer && $user['username'] === $viewer['username'];
default:
return false;
}
}
public static function getVisibilityHTML(string $code) {
return static::$visibility_codes[$code]['html'];
}
public static function viewerCanSeeComponents(array $user, ?array $viewer) {
// assert($viewer can view $user's probile). This is always true because everyone's profile is public.
$extra = UOJUser::getExtra($user);
return [
'email' => UOJUser::checkVisibility($extra['show_email'], $user, $viewer),
'qq' => UOJUser::checkVisibility($extra['show_qq'], $user, $viewer)
];
}
public static function updateVisitHistory($user, $info) {
$extra = UOJUser::getExtra($user);
$cur = [
'addr' => $info['remote_addr'],
'ua' => substr($info['http_user_agent'], 0, UOJUser::MAX_UA_LEN),
'last' => UOJTime::$time_now_str
];
$extra['history'] = UOJUser::getUpdatedExtraVisitHistory($extra['history'], $cur);
$user['remote_addr'] = $info['remote_addr'];
$user['http_x_forwarded_for'] = $info['http_x_forwarded_for'];
$user['extra'] = json_encode($extra, JSON_UNESCAPED_UNICODE);
DB::update([
'update user_info',
'set', [
'remote_addr' => $user['remote_addr'],
'http_x_forwarded_for' => $user['http_x_forwarded_for'],
'last_visit_time' => DB::now(),
'extra' => $user['extra']
], "where", ["username" => $user['username']]
]);
return $user;
}
}