64      * @param string $user
68     public function checkPass($user, $pass)  argument
70         $userinfo = $this->getUserData($user);
76         return auth_verifyPassword($pass, $this->users[$user]['pass']);
90      * @param string $user
94     public function getUserData($user, $requireGroups = true)  argument
97         return $this->users[$user] ?? false;
105      * @param string $user
112     protected function createUserLine($user, $pass, $name, $mail, $grps)  argument
115         $userline = [$user, $pass, $name, $mail, $groups];
135      * @param string $user
142     public function createUser($user, $pwd, $name, $mail, $grps = null)  argument
148         if ($this->getUserData($user) !== false) {
159         $userline = $this->createUserLine($user, $pass, $name, $mail, $grps);
166         $this->users[$user] = [
179      * @param   string $user      nick of the user to be changed
183     public function modifyUser($user, $changes)  argument
189         if (($userinfo = $this->getUserData($user)) === false) {
196             msg(sprintf($this->getLang('protected'), hsc($user)), -1);
203         $newuser = $user;
221 …if (!io_replaceInFile($config_cascade['plainauth.users']['default'], '/^' . $user . ':/', $userlin…
228         if (isset($this->users[$user])) unset($this->users[$user]);
249         foreach ($users as $user) {
251             if (!empty($this->users[$user]['protected'])) {
252                 msg(sprintf($this->getLang('protected'), hsc($user)), -1);
255             if (isset($this->users[$user])) $deleted[] = preg_quote($user, '/');
291         foreach ($this->users as $user => $info) {
292             $count += $this->filter($user, $info);
320         foreach ($this->users as $user => $info) {
321             if ($this->filter($user, $info)) {
323                     $out[$user] = $info;
361      * @param string $user
364     public function cleanUser($user)  argument
368         return cleanID(str_replace([':', '/', ';'], $conf['sepchar'], $user));
462      * @param string $user User login
466     protected function filter($user, $info)  argument
470                 if (!preg_match($pattern, $user)) return false;