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<?php |
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/** |
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* Copyright © MIKO LLC - All Rights Reserved |
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* Unauthorized copying of this file, via any medium is strictly prohibited |
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* Proprietary and confidential |
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* Written by Alexey Portnov, 4 2020 |
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*/ |
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namespace MikoPBX\Core\System; |
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use MikoPBX\Common\Models\{Fail2BanRules, FirewallRules, NetworkFilters}; |
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use SQLite3; |
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class Firewall |
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{ |
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private $firewall_enable; |
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private $fail2ban_enable; |
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/** |
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* Firewall constructor. |
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*/ |
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public function __construct() |
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{ |
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$this->firewall_enable = false; |
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$this->fail2ban_enable = false; |
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// Получение настроек. |
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$config = new MikoPBXConfig(); |
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$firewall_enable = $config->getGeneralSettings('PBXFirewallEnabled'); |
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$this->firewall_enable = ($firewall_enable === '1'); |
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$fail2ban_enable = $config->getGeneralSettings('PBXFail2BanEnabled'); |
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$this->fail2ban_enable = ($fail2ban_enable === '1'); |
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} |
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/** |
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* Рестарт firewall. |
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* |
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* @return array |
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*/ |
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public static function reloadFirewall(): array |
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{ |
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$result = []; |
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$pid_file = '/var/run/service_reloadFirewall.pid'; |
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if (file_exists($pid_file)) { |
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$old_pid = file_get_contents($pid_file); |
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$process = Util::getPidOfProcess("^{$old_pid}"); |
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if ($process !== '') { |
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$result['result'] = 'ERROR'; |
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$result['data'] = 'Another restart process has not yet completed'; |
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return $result; |
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} |
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} |
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file_put_contents($pid_file, getmypid()); |
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$firewall = new Firewall(); |
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$firewall->applyConfig(); |
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unlink($pid_file); |
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$result['result'] = 'Success'; |
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return $result; |
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} |
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/** |
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* Установка правил Firewall. |
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**/ |
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public function applyConfig(): void |
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{ |
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self::fail2banStop(); |
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$this->dropAllRules(); |
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self::fail2banMakeDirs(); |
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if ($this->firewall_enable) { |
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$arr_command = []; |
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$arr_command[] = $this->getIptablesInputRule('', '-m conntrack --ctstate ESTABLISHED,RELATED'); |
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// Добавляем разрешения на сервисы. |
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$this->addFirewallRules($arr_command); |
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// Все остальное запрещаем. |
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$arr_command[] = $this->getIptablesInputRule('', '', 'DROP'); |
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// Кастомизация правил firewall. |
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$arr_commands_custom = []; |
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$out = []; |
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Util::fileWriteContent('/etc/firewall_additional', ''); |
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$catPath = Util::which('cat'); |
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$grepPath = Util::which('grep'); |
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$busyboxPath = Util::which('busybox'); |
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$awkPath = Util::which('awk'); |
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Util::mwExec( |
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"{$catPath} /etc/firewall_additional | {$grepPath} -v '|' | {$grepPath} -v '&'| {$grepPath} '^iptables' | {$busyboxPath} {$awkPath} -F ';' '{print $1}'", |
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$arr_commands_custom |
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); |
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if (Util::isSystemctl()) { |
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Util::mwMkdir('/etc/iptables'); |
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file_put_contents('/etc/iptables/iptables.mikopbx', implode("\n", $arr_command)); |
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file_put_contents( |
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'/etc/iptables/iptables.mikopbx', |
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"\n" . implode("\n", $arr_commands_custom), |
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FILE_APPEND |
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); |
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$systemctlPath = Util::which('systemctl'); |
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Util::mwExec("{$systemctlPath} restart mikopbx_iptables"); |
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} else { |
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Util::mwExecCommands($arr_command, $out, 'firewall'); |
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Util::mwExecCommands($arr_commands_custom, $out, 'firewall_additional'); |
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} |
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} |
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if ($this->fail2ban_enable) { |
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// Настройка правил бана. |
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$this->writeConfig(); |
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self::fail2banStart(); |
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} else { |
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self::fail2banStop(); |
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} |
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} |
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/** |
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* Завершение работы fail2ban; |
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*/ |
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public static function fail2banStop(): void |
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{ |
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if (Util::isSystemctl()) { |
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$systemctlPath = Util::which('systemctl'); |
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Util::mwExec("{$systemctlPath} stop fail2ban"); |
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} else { |
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$fail2banPath = Util::which('fail2ban-client'); |
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Util::mwExec("{$fail2banPath} -x stop"); |
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} |
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} |
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/** |
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* Удаление всех правил Firewall. |
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*/ |
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private function dropAllRules(): void |
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{ |
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$iptablesPath = Util::which('iptables'); |
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Util::mwExec("{$iptablesPath} -F"); |
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Util::mwExec("{$iptablesPath} -X"); |
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} |
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/** |
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* Создает служебные директории и ссылки на файлы fail2ban |
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* |
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* @return string |
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*/ |
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public static function fail2banMakeDirs(): string |
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{ |
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$res_file = self::fail2banGetDbPath(); |
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$filename = basename($res_file); |
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$old_dir_db = '/cf/fail2ban'; |
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$dir_db = self::getFail2banDbDir(); |
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Util::mwMkdir($dir_db); |
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// Создаем рабочие каталоги. |
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$db_bd_dir = dirname($res_file); |
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Util::mwMkdir($db_bd_dir); |
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$create_link = false; |
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// Символическая ссылка на базу данных. |
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if (@filetype($res_file) !== 'link') { |
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@unlink($res_file); |
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$create_link = true; |
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} elseif (readlink($res_file) === "$old_dir_db/$filename") { |
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@unlink($res_file); |
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$create_link = true; |
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if (file_exists("$old_dir_db/$filename")) { |
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// Перемещаем файл в новое местоположение. |
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$mvPath = Util::which('mv'); |
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Util::mwExec("{$mvPath} '$old_dir_db/$filename' '$dir_db/$filename'"); |
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} |
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} |
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if ($create_link === true) { |
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@symlink("$dir_db/$filename", $res_file); |
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} |
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return $res_file; |
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} |
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/** |
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* Возвращает путь к файлу базы данных fail2ban. |
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* |
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* @return string |
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*/ |
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public static function fail2banGetDbPath(): string |
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{ |
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return '/var/lib/fail2ban/fail2ban.sqlite3'; |
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} |
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public static function getFail2banDbDir(): string |
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{ |
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if (Storage::isStorageDiskMounted()) { |
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$mount_point = Storage::getMediaDir(); |
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$db_dir = "$mount_point/fail2ban"; |
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} else { |
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$db_dir = "/var/spool/fail2ban"; |
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} |
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Util::mwMkdir($db_dir); |
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if ( ! file_exists($db_dir)) { |
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$db_dir = '/tmp'; |
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} |
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return $db_dir; |
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} |
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/** |
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* Формирует строку правила iptables |
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* |
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* @param string $dport |
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* @param string $other_data |
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* @param string $action |
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* |
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* @return string |
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*/ |
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private function getIptablesInputRule($dport = '', $other_data = '', $action = 'ACCEPT'): string |
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{ |
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$data_port = ''; |
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if (trim($dport) !== '') { |
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$data_port = '--dport ' . $dport; |
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} |
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$other_data = trim($other_data); |
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return "iptables -A INPUT $other_data $data_port -j $action"; |
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} |
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/** |
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* Генератор правил iptables. |
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* |
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* @param $arr_command |
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*/ |
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private function addFirewallRules(&$arr_command): void |
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{ |
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/** @var \MikoPBX\Common\Models\FirewallRules $result */ |
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/** @var \MikoPBX\Common\Models\FirewallRules $rule */ |
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/** @var \MikoPBX\Common\Models\FirewallRules $rule */ |
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$result = FirewallRules::find(); |
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foreach ($result as $rule) { |
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if ($rule->portfrom !== $rule->portto && trim($rule->portto) !== '') { |
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$port = "{$rule->portfrom}:{$rule->portto}"; |
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} else { |
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$port = $rule->portfrom; |
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} |
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/** @var \MikoPBX\Common\Models\NetworkFilters $network_filter */ |
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$network_filter = NetworkFilters::findFirst($rule->networkfilterid); |
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if ($network_filter === null) { |
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Util::sysLogMsg('Firewall', "network_filter_id not found {$rule->networkfilterid}"); |
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continue; |
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} |
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if ('0.0.0.0/0' === $network_filter->permit && $rule->action !== 'allow') { |
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continue; |
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} |
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$other_data = "-p {$rule->protocol}"; |
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$other_data .= ($network_filter === null) ? '' : ' -s ' . $network_filter->permit; |
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if ($rule->protocol === 'icmp') { |
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$port = ''; |
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$other_data .= ' --icmp-type echo-request'; |
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} |
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$action = ($rule->action === 'allow') ? 'ACCEPT' : 'DROP'; |
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$arr_command[] = $this->getIptablesInputRule($port, $other_data, $action); |
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} |
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// Разрешим все локальные подключения. |
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$arr_command[] = $this->getIptablesInputRule('', '-s 127.0.0.1 ', 'ACCEPT'); |
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} |
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/** |
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* Записываем конфиг для fail2ban. Описываем правила блокировок. |
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*/ |
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private function writeConfig(): void |
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{ |
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$user_whitelist = ''; |
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/** @var \MikoPBX\Common\Models\Fail2BanRules $res */ |
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$res = Fail2BanRules::findFirst("id = '1'"); |
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if ($res !== null) { |
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$max_retry = $res->maxretry; |
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$find_time = $res->findtime; |
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$ban_time = $res->bantime; |
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$whitelist = $res->whitelist; |
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$arr_whitelist = explode(' ', $whitelist); |
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foreach ($arr_whitelist as $ip_string) { |
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if (Verify::isIpAddress($ip_string)) { |
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$user_whitelist .= "$ip_string "; |
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} |
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} |
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$net_filters = NetworkFilters::find("newer_block_ip = '1'"); |
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foreach ($net_filters as $filter) { |
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$user_whitelist .= "{$filter->permit} "; |
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} |
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$user_whitelist = trim($user_whitelist); |
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} else { |
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$max_retry = '10'; |
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$find_time = '1800'; |
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$ban_time = '43200'; |
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} |
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$this->generateJails(); |
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$jails = [ |
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'dropbear' => 'iptables-allports[name=SSH, protocol=all]', |
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'mikoajam' => 'iptables-allports[name=MIKOAJAM, protocol=all]', |
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'mikopbx-www' => 'iptables-allports[name=HTTP, protocol=all]', |
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]; |
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$config = "[DEFAULT]\n" . |
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"ignoreip = 127.0.0.1 {$user_whitelist}\n\n"; |
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309
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|
|
|
|
310
|
|
|
$syslog_file = System::getSyslogFile(); |
|
311
|
|
|
|
|
312
|
|
|
foreach ($jails as $jail => $action) { |
|
313
|
|
|
$config .= "[{$jail}]\n" . |
|
314
|
|
|
"enabled = true\n" . |
|
315
|
|
|
"backend = process\n" . |
|
316
|
|
|
"logpath = {$syslog_file}\n" . |
|
317
|
|
|
// "logprocess = logread -f\n". |
|
318
|
|
|
"maxretry = {$max_retry}\n" . |
|
319
|
|
|
"findtime = {$find_time}\n" . |
|
320
|
|
|
"bantime = {$ban_time}\n" . |
|
321
|
|
|
"logencoding = utf-8\n" . |
|
322
|
|
|
"action = {$action}\n\n"; |
|
323
|
|
|
} |
|
324
|
|
|
|
|
325
|
|
|
$log_dir = System::getLogDir() . '/asterisk/'; |
|
326
|
|
|
$config .= "[asterisk_security_log]\n" . |
|
327
|
|
|
"enabled = true\n" . |
|
328
|
|
|
"filter = asterisk\n" . |
|
329
|
|
|
"action = iptables-allports[name=ASTERISK, protocol=all]\n" . |
|
330
|
|
|
"logencoding = utf-8\n" . |
|
331
|
|
|
"maxretry = {$max_retry}\n" . |
|
332
|
|
|
"findtime = {$find_time}\n" . |
|
333
|
|
|
"bantime = {$ban_time}\n" . |
|
334
|
|
|
"logpath = {$log_dir}security_log\n\n"; |
|
335
|
|
|
|
|
336
|
|
|
$config .= "[asterisk_error]\n" . |
|
337
|
|
|
"enabled = true\n" . |
|
338
|
|
|
"filter = asterisk\n" . |
|
339
|
|
|
"action = iptables-allports[name=ASTERISK_ERROR, protocol=all]\n" . |
|
340
|
|
|
"maxretry = {$max_retry}\n" . |
|
341
|
|
|
"findtime = {$find_time}\n" . |
|
342
|
|
|
"bantime = {$ban_time}\n" . |
|
343
|
|
|
"logencoding = utf-8\n" . |
|
344
|
|
|
"logpath = {$log_dir}error\n\n"; |
|
345
|
|
|
|
|
346
|
|
|
$config .= "[asterisk_public]\n" . |
|
347
|
|
|
"enabled = true\n" . |
|
348
|
|
|
"filter = asterisk\n" . |
|
349
|
|
|
"action = iptables-allports[name=ASTERISK_PUBLIC, protocol=all]\n" . |
|
350
|
|
|
"maxretry = {$max_retry}\n" . |
|
351
|
|
|
"findtime = {$find_time}\n" . |
|
352
|
|
|
"bantime = {$ban_time}\n" . |
|
353
|
|
|
"logencoding = utf-8\n" . |
|
354
|
|
|
"logpath = {$log_dir}messages\n\n"; |
|
355
|
|
|
|
|
356
|
|
|
Util::fileWriteContent('/etc/fail2ban/jail.local', $config); |
|
357
|
|
|
} |
|
358
|
|
|
|
|
359
|
|
|
/** |
|
360
|
|
|
* Создаем дополнительные правила. |
|
361
|
|
|
*/ |
|
362
|
|
|
private function generateJails(): void |
|
363
|
|
|
{ |
|
364
|
|
|
$conf = "[INCLUDES]\n" . |
|
365
|
|
|
"before = common.conf\n" . |
|
366
|
|
|
"[Definition]\n" . |
|
367
|
|
|
"_daemon = (authpriv.warn |auth.warn )?miko_ajam\n" . |
|
368
|
|
|
'failregex = ^%(__prefix_line)sFrom\s+<HOST>.\s+UserAgent:\s+[a-zA-Z0-9 \s\.,/:;\+\-_\)\(\[\]]*.\s+Fail\s+auth\s+http.$' . "\n" . |
|
369
|
|
|
' ^%(__prefix_line)sFrom\s+<HOST>.\s+UserAgent:\s+[a-zA-Z0-9 \s\.,/:;\+\-_\)\(\[\]]*.\s+File\s+not\s+found.$' . "\n" . |
|
370
|
|
|
"ignoreregex =\n"; |
|
371
|
|
|
file_put_contents('/etc/fail2ban/filter.d/mikoajam.conf', $conf); |
|
372
|
|
|
|
|
373
|
|
|
$conf = "[INCLUDES]\n" . |
|
374
|
|
|
"before = common.conf\n" . |
|
375
|
|
|
"[Definition]\n" . |
|
376
|
|
|
"_daemon = [\S\W\s]+web_auth\n" . |
|
377
|
|
|
'failregex = ^%(__prefix_line)sFrom:\s<HOST>\sUserAgent:(\S|\s)*Wrong password$' . "\n" . |
|
378
|
|
|
' ^(\S|\s)*nginx:\s+\d+/\d+/\d+\s+(\S|\s)*status\s+403(\S|\s)*client:\s+<HOST>(\S|\s)*' . "\n" . |
|
379
|
|
|
"ignoreregex =\n"; |
|
380
|
|
|
file_put_contents('/etc/fail2ban/filter.d/mikopbx-www.conf', $conf); |
|
381
|
|
|
|
|
382
|
|
|
$conf = "[INCLUDES]\n" . |
|
383
|
|
|
"before = common.conf\n" . |
|
384
|
|
|
"[Definition]\n" . |
|
385
|
|
|
"_daemon = (authpriv.warn )?dropbear\n" . |
|
386
|
|
|
'prefregex = ^%(__prefix_line)s<F-CONTENT>(?:[Ll]ogin|[Bb]ad|[Ee]xit).+</F-CONTENT>$' . "\n" . |
|
387
|
|
|
'failregex = ^[Ll]ogin attempt for nonexistent user (\'.*\' )?from <HOST>:\d+$' . "\n" . |
|
388
|
|
|
' ^[Bb]ad (PAM )?password attempt for .+ from <HOST>(:\d+)?$' . "\n" . |
|
389
|
|
|
' ^[Ee]xit before auth \(user \'.+\', \d+ fails\): Max auth tries reached - user \'.+\' from <HOST>:\d+\s*$' . "\n" . |
|
390
|
|
|
"ignoreregex =\n"; |
|
391
|
|
|
file_put_contents('/etc/fail2ban/filter.d/dropbear.conf', $conf); |
|
392
|
|
|
} |
|
393
|
|
|
|
|
394
|
|
|
/** |
|
395
|
|
|
* Старт firewall. |
|
396
|
|
|
*/ |
|
397
|
|
|
public static function fail2banStart(): void |
|
398
|
|
|
{ |
|
399
|
|
|
if (Util::isSystemctl()) { |
|
400
|
|
|
$systemctlPath = Util::which('systemctl'); |
|
401
|
|
|
Util::mwExec("{$systemctlPath} restart fail2ban"); |
|
402
|
|
|
|
|
403
|
|
|
return; |
|
404
|
|
|
} |
|
405
|
|
|
// Чистим битые строки, не улдаленные после отмены бана. |
|
406
|
|
|
self::cleanFail2banDb(); |
|
407
|
|
|
Util::killByName('fail2ban-server'); |
|
408
|
|
|
$fail2banPath = Util::which('fail2ban-client'); |
|
409
|
|
|
$cmd_start = "{$fail2banPath} -x start"; |
|
410
|
|
|
$command = "($cmd_start;) > /dev/null 2>&1 &"; |
|
411
|
|
|
Util::mwExec($command); |
|
412
|
|
|
} |
|
413
|
|
|
|
|
414
|
|
|
public static function cleanFail2banDb(): void |
|
415
|
|
|
{ |
|
416
|
|
|
/** @var \MikoPBX\Common\Models\Fail2BanRules $res */ |
|
417
|
|
|
$res = Fail2BanRules::findFirst("id = '1'"); |
|
418
|
|
|
if ($res !== null) { |
|
419
|
|
|
$ban_time = $res->bantime; |
|
420
|
|
|
} else { |
|
421
|
|
|
$ban_time = '43800'; |
|
422
|
|
|
} |
|
423
|
|
|
$path_db = self::fail2banGetDbPath(); |
|
424
|
|
|
$db = new SQLite3($path_db); |
|
425
|
|
|
$db->busyTimeout(3000); |
|
426
|
|
|
if (false === self::tableBanExists($db)) { |
|
427
|
|
|
return; |
|
428
|
|
|
} |
|
429
|
|
|
$q = 'DELETE' . ' from bans WHERE (timeofban+' . $ban_time . ')<' . time(); |
|
430
|
|
|
$db->query($q); |
|
431
|
|
|
} |
|
432
|
|
|
|
|
433
|
|
|
/** |
|
434
|
|
|
* Проверка существования таблицы ban в базе данных. |
|
435
|
|
|
* |
|
436
|
|
|
* @param SQLite3 $db |
|
437
|
|
|
* |
|
438
|
|
|
* @return bool |
|
439
|
|
|
*/ |
|
440
|
|
|
public static function tableBanExists($db): bool |
|
441
|
|
|
{ |
|
442
|
|
|
$q_check = 'SELECT' . ' name FROM sqlite_master WHERE type = "table" AND name="bans"'; |
|
443
|
|
|
$result_check = $db->query($q_check); |
|
444
|
|
|
|
|
445
|
|
|
return (false !== $result_check && $result_check->fetchArray(SQLITE3_ASSOC) !== false); |
|
446
|
|
|
} |
|
447
|
|
|
|
|
448
|
|
|
/** |
|
449
|
|
|
* Проверка запущен ли fail2ban. |
|
450
|
|
|
*/ |
|
451
|
|
|
public static function checkFail2ban(): void |
|
452
|
|
|
{ |
|
453
|
|
|
$firewall = new Firewall(); |
|
454
|
|
|
if ($firewall->fail2ban_enable && ! $firewall->fail2banIsRunning()) { |
|
455
|
|
|
self::fail2banStart(); |
|
456
|
|
|
} |
|
457
|
|
|
} |
|
458
|
|
|
|
|
459
|
|
|
/** |
|
460
|
|
|
* Проверка статуса fail2ban |
|
461
|
|
|
* |
|
462
|
|
|
* @return bool |
|
463
|
|
|
*/ |
|
464
|
|
|
private function fail2banIsRunning(): bool |
|
465
|
|
|
{ |
|
466
|
|
|
$fail2banPath = Util::which('fail2ban-client'); |
|
467
|
|
|
$res_ping = Util::mwExec("{$fail2banPath} ping"); |
|
468
|
|
|
$res_stat = Util::mwExec("{$fail2banPath} status"); |
|
469
|
|
|
|
|
470
|
|
|
$result = false; |
|
471
|
|
|
if ($res_ping === 0 && $res_stat === 0) { |
|
472
|
|
|
$result = true; |
|
473
|
|
|
} |
|
474
|
|
|
|
|
475
|
|
|
return $result; |
|
476
|
|
|
} |
|
477
|
|
|
|
|
478
|
|
|
/** |
|
479
|
|
|
* Удалить адрес из бана. |
|
480
|
|
|
* |
|
481
|
|
|
* @param $ip |
|
482
|
|
|
* |
|
483
|
|
|
* @return array |
|
484
|
|
|
*/ |
|
485
|
|
|
public static function fail2banUnbanAll($ip): array |
|
486
|
|
|
{ |
|
487
|
|
|
$ip = trim($ip); |
|
488
|
|
|
$result = ['result' => 'Success']; |
|
489
|
|
|
if ( ! Verify::isIpAddress($ip)) { |
|
490
|
|
|
$result['message'] = "Not valid ip '{$ip}'."; |
|
491
|
|
|
|
|
492
|
|
|
return $result; |
|
493
|
|
|
} |
|
494
|
|
|
$config = new MikoPBXConfig(); |
|
495
|
|
|
$fail2ban_enable = $config->getGeneralSettings('PBXFail2BanEnabled'); |
|
496
|
|
|
$enable = ($fail2ban_enable == '1'); |
|
497
|
|
|
if ($enable) { |
|
498
|
|
|
// Попробуем найти jail по данным DB. |
|
499
|
|
|
// fail2ban-client unban 172.16.156.1 |
|
500
|
|
|
// TODO Util::mwExec("fail2ban-client unban {$ip}}"); |
|
501
|
|
|
$data = self::getBanIp($ip); |
|
502
|
|
|
foreach ($data as $row) { |
|
503
|
|
|
$res = self::fail2banUnban($ip, $row['jail']); |
|
504
|
|
|
if ($res['result'] === 'ERROR') { |
|
505
|
|
|
$result = $res; |
|
506
|
|
|
} |
|
507
|
|
|
} |
|
508
|
|
|
} else { |
|
509
|
|
|
$result = self::fail2banUnbanDb($ip); |
|
510
|
|
|
} |
|
511
|
|
|
|
|
512
|
|
|
return $result; |
|
513
|
|
|
} |
|
514
|
|
|
|
|
515
|
|
|
/** |
|
516
|
|
|
* Возвращает массив забаненных ip. Либо данные по конкретному адресу. |
|
517
|
|
|
* |
|
518
|
|
|
* @param null $ip |
|
|
|
|
|
|
519
|
|
|
* |
|
520
|
|
|
* @return array |
|
521
|
|
|
*/ |
|
522
|
|
|
public static function getBanIp($ip = null): array |
|
523
|
|
|
{ |
|
524
|
|
|
$result = []; |
|
525
|
|
|
|
|
526
|
|
|
/** @var \MikoPBX\Common\Models\Fail2BanRules $res */ |
|
527
|
|
|
$res = Fail2BanRules::findFirst("id = '1'"); |
|
528
|
|
|
if ($res !== null) { |
|
529
|
|
|
$ban_time = $res->bantime; |
|
530
|
|
|
} else { |
|
531
|
|
|
$ban_time = '43800'; |
|
532
|
|
|
} |
|
533
|
|
|
|
|
534
|
|
|
// Добавленн фильтр по времени бана. возвращаем только адреса, которые еще НЕ разбанены. |
|
535
|
|
|
$q = 'SELECT' . ' DISTINCT jail,ip,MAX(timeofban) AS timeofban, MAX(timeofban+' . $ban_time . ') AS timeunban FROM bans where (timeofban+' . $ban_time . ')>' . time( |
|
536
|
|
|
); |
|
537
|
|
|
if ($ip !== null) { |
|
|
|
|
|
|
538
|
|
|
$q .= " AND ip='{$ip}'"; |
|
539
|
|
|
} |
|
540
|
|
|
$q .= ' GROUP BY jail,ip'; |
|
541
|
|
|
|
|
542
|
|
|
$path_db = self::fail2banGetDbPath(); |
|
543
|
|
|
$db = new SQLite3($path_db); |
|
544
|
|
|
$db->busyTimeout(5000); |
|
545
|
|
|
|
|
546
|
|
|
if (false === self::tableBanExists($db)) { |
|
547
|
|
|
// Таблица не существует. Бана нет. |
|
548
|
|
|
return $result; |
|
549
|
|
|
} |
|
550
|
|
|
|
|
551
|
|
|
$results = $db->query($q); |
|
552
|
|
|
if (false !== $results && $results->numColumns() > 0) { |
|
553
|
|
|
while ($res = $results->fetchArray(SQLITE3_ASSOC)) { |
|
554
|
|
|
$result[] = $res; |
|
555
|
|
|
} |
|
556
|
|
|
} |
|
557
|
|
|
|
|
558
|
|
|
return $result; |
|
559
|
|
|
} |
|
560
|
|
|
|
|
561
|
|
|
/** |
|
562
|
|
|
* Удалить из бана конкретный IP из конкретного jail. |
|
563
|
|
|
* |
|
564
|
|
|
* @param $ip |
|
565
|
|
|
* @param $jail |
|
566
|
|
|
* |
|
567
|
|
|
* @return array |
|
568
|
|
|
*/ |
|
569
|
|
|
public static function fail2banUnban($ip, $jail): array |
|
570
|
|
|
{ |
|
571
|
|
|
$res = ['result' => 'ERROR']; |
|
572
|
|
|
$ip = trim($ip); |
|
573
|
|
|
// Валидация... |
|
574
|
|
|
$matches = []; |
|
|
|
|
|
|
575
|
|
|
// preg_match_all('/^[a-z-]+$/', $jail, $matches, PREG_SET_ORDER); |
|
576
|
|
|
if ( ! Verify::isIpAddress($ip)) { |
|
577
|
|
|
// это НЕ IP адрес, или не корректно указан jail. |
|
578
|
|
|
$res['message'] = 'Not valid ip or jail.'; |
|
579
|
|
|
|
|
580
|
|
|
return $res; |
|
581
|
|
|
} |
|
582
|
|
|
$path_sock = '/var/run/fail2ban/fail2ban.sock'; |
|
583
|
|
|
if (file_exists($path_sock) && filetype($path_sock) === 'socket') { |
|
584
|
|
|
$out = []; |
|
585
|
|
|
$fail2banPath = Util::which('fail2ban-client'); |
|
586
|
|
|
Util::mwExec("{$fail2banPath} set {$jail} unbanip {$ip} 2>&1", $out); |
|
587
|
|
|
$res_data = trim(implode('', $out)); |
|
588
|
|
|
if ($res_data !== $ip && $res_data !== "IP $ip is not banned") { |
|
589
|
|
|
$res['message'] = 'Error fail2ban-client. ' . $res_data; |
|
590
|
|
|
|
|
591
|
|
|
return $res; |
|
592
|
|
|
} |
|
593
|
|
|
} else { |
|
594
|
|
|
$res['message'] = 'Fail2ban not run.'; |
|
595
|
|
|
|
|
596
|
|
|
return $res; |
|
597
|
|
|
} |
|
598
|
|
|
|
|
599
|
|
|
$res = self::fail2banUnbanDb($ip, $jail); |
|
600
|
|
|
|
|
601
|
|
|
return $res; |
|
602
|
|
|
} |
|
603
|
|
|
|
|
604
|
|
|
/** |
|
605
|
|
|
* Удаление бана из базы. |
|
606
|
|
|
* |
|
607
|
|
|
* @param $ip |
|
608
|
|
|
* @param string $jail |
|
609
|
|
|
* |
|
610
|
|
|
* @return array |
|
611
|
|
|
*/ |
|
612
|
|
|
public static function fail2banUnbanDb($ip, $jail = ''): array |
|
613
|
|
|
{ |
|
614
|
|
|
$jail_q = ($jail === '') ? '' : "AND jail = '{$jail}'"; |
|
615
|
|
|
$path_db = self::fail2banGetDbPath(); |
|
616
|
|
|
$db = new SQLite3($path_db); |
|
617
|
|
|
$db->busyTimeout(3000); |
|
618
|
|
|
if (false === self::tableBanExists($db)) { |
|
619
|
|
|
// Таблица не существует. Бана нет. |
|
620
|
|
|
return [ |
|
621
|
|
|
'result' => 'Success', |
|
622
|
|
|
'message' => '', |
|
623
|
|
|
]; |
|
624
|
|
|
} |
|
625
|
|
|
$q = 'DELETE' . " FROM bans WHERE ip = '{$ip}' {$jail_q}"; |
|
626
|
|
|
$db->query($q); |
|
627
|
|
|
|
|
628
|
|
|
$err = $db->lastErrorMsg(); |
|
629
|
|
|
|
|
630
|
|
|
return [ |
|
631
|
|
|
'result' => ($err === 'not an error') ? 'Success' : 'ERROR', |
|
632
|
|
|
'message' => $err, |
|
633
|
|
|
]; |
|
634
|
|
|
} |
|
635
|
|
|
|
|
636
|
|
|
} |
|
637
|
|
|
|
mikopbx /
Core
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If you suppress an error, we recommend checking for the error condition explicitly: