mirror of
https://github.com/myronblair/novacpx
synced 2026-06-30 17:50:41 -05:00
myron
62707d62ce
- firewall.php: auto-detect server IPs (loopback, all interface IPs, private /24 subnets) for Fail2Ban ignoreip; f2b-ignoreip-list/add/ remove/reset actions; write to jail.local directly (www-data owns it); f2b_set_ignoreip() reloads fail2ban after every change - auth.php: log failed logins to /var/log/novacpx/access.log in format fail2ban filters expect — "FAILED LOGIN from <IP> [portal]" - deploy/fail2ban/: filter.d conf files for all 4 NovaCPX jails - install.sh: auto-detect local IPs → ignoreip in jail.local; install filter files; create access.log (www-data:www-data 664) - admin.js: Fail2Ban Whitelist section in firewall page — chip list with add/remove/reset; loopback shown with lock icon and non-removable Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
448 lines
21 KiB
PHP
448 lines
21 KiB
PHP
<?php
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/**
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* Firewall endpoint — UFW rules + Fail2Ban jail management
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* All actions require admin role.
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*/
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Auth::getInstance()->require('admin');
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$db = DB::getInstance();
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// ── Helpers ────────────────────────────────────────────────────────────────
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function fw_exec(string $cmd): string {
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// Prefix ufw and fail2ban-client with sudo (www-data has NOPASSWD via sudoers.d/novacpx-firewall)
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$cmd = preg_replace('/^(ufw|fail2ban-client|systemctl (restart|reload|start|stop) fail2ban)\b/', 'sudo $1', $cmd);
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$out = shell_exec($cmd . ' 2>&1');
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return trim($out ?: '');
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}
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define('JAIL_LOCAL', '/etc/fail2ban/jail.local');
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/** Detect all local IPs for this server (loopback + all interface IPs + private subnets) */
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function local_ips(): array {
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$ips = ['127.0.0.0/8', '::1'];
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$raw = shell_exec("ip -4 addr show 2>/dev/null | grep 'inet ' | awk '{print $2}'") ?: '';
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foreach (array_filter(explode("\n", trim($raw))) as $cidr) {
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$cidr = trim($cidr);
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if (!$cidr) continue;
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// Add the specific IP
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$ip = explode('/', $cidr)[0];
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if (!in_array($ip, $ips)) $ips[] = $ip;
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// If it's a private range, add the /24 subnet too
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if (preg_match('/^(10\.|172\.(1[6-9]|2\d|3[01])\.|192\.168\.)/', $ip)) {
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$parts = explode('.', $ip);
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$subnet = $parts[0] . '.' . $parts[1] . '.' . $parts[2] . '.0/24';
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if (!in_array($subnet, $ips)) $ips[] = $subnet;
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}
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}
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return $ips;
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}
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/** Read ignoreip list from jail.local [DEFAULT] */
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function f2b_get_ignoreip(): array {
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if (!file_exists(JAIL_LOCAL)) return local_ips();
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$content = file_get_contents(JAIL_LOCAL);
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if (preg_match('/^\s*ignoreip\s*=\s*(.+)$/m', $content, $m)) {
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$raw = preg_replace('/\s+/', ' ', trim($m[1]));
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return array_values(array_filter(explode(' ', $raw)));
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}
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return local_ips();
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}
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/** Write ignoreip list to jail.local and reload fail2ban */
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function f2b_set_ignoreip(array $ips): void {
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$ips = array_values(array_unique(array_filter($ips)));
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$line = 'ignoreip = ' . implode(' ', $ips);
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if (!file_exists(JAIL_LOCAL)) {
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// Create jail.local with [DEFAULT] section
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file_put_contents(JAIL_LOCAL, "[DEFAULT]\n{$line}\n\n[sshd]\nenabled = true\n");
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} else {
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$content = file_get_contents(JAIL_LOCAL);
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if (preg_match('/^\s*ignoreip\s*=/m', $content)) {
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$content = preg_replace('/^\s*ignoreip\s*=.+$/m', $line, $content);
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} elseif (preg_match('/^\[DEFAULT\]/m', $content)) {
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$content = preg_replace('/(\[DEFAULT\][^\[]*)/s', "$1{$line}\n", $content, 1);
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} else {
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$content = "[DEFAULT]\n{$line}\n\n" . $content;
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}
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file_put_contents(JAIL_LOCAL, $content);
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}
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shell_exec('sudo fail2ban-client reload 2>/dev/null');
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}
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/** Parse `ufw status verbose` into structured data */
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function ufw_status(): array {
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$raw = fw_exec('ufw status verbose');
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$active = str_contains($raw, 'Status: active');
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// Parse numbered rules from `ufw status numbered`
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$numbered = fw_exec('ufw status numbered');
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$rules = [];
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foreach (explode("\n", $numbered) as $line) {
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if (preg_match('/^\[\s*(\d+)\]\s+(.+?)\s{2,}(.+?)\s{2,}(.+)$/', $line, $m)) {
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$rules[] = [
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'num' => (int)$m[1],
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'to' => trim($m[2]),
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'action' => trim($m[3]),
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'from' => trim($m[4]),
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];
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} elseif (preg_match('/^\[\s*(\d+)\]\s+(\S+)\s+(\S+)\s+(.+)$/', $line, $m)) {
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$rules[] = [
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'num' => (int)$m[1],
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'to' => trim($m[2]),
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'action' => trim($m[3]),
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'from' => trim($m[4]),
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];
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}
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}
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// Default policy
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preg_match('/Default:\s+(\w+) \(incoming\),\s+(\w+) \(outgoing\)/', $raw, $pol);
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return [
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'active' => $active,
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'default_incoming' => $pol[1] ?? 'deny',
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'default_outgoing' => $pol[2] ?? 'allow',
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'rules' => $rules,
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'raw' => $raw,
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];
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}
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/** Parse fail2ban-client status output into jail list */
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function f2b_jails(): array {
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$raw = fw_exec('fail2ban-client status');
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preg_match('/Jail list:\s*(.+)/', $raw, $m);
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if (!$m[1]) return [];
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return array_values(array_filter(array_map('trim', explode(',', $m[1]))));
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}
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/** Get details for a single jail */
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function f2b_jail_detail(string $jail): array {
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$raw = fw_exec('fail2ban-client status ' . escapeshellarg($jail));
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preg_match('/Currently banned:\s*(\d+)/', $raw, $banned);
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preg_match('/Total banned:\s*(\d+)/', $raw, $total);
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preg_match('/Currently failed:\s*(\d+)/', $raw, $failed);
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preg_match('/Banned IP list:\s*(.*)/', $raw, $ips);
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$ipList = $ips[1] ? array_values(array_filter(explode(' ', trim($ips[1])))) : [];
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preg_match('/`- Filter\s*\|-- Currently failed:\s*(\d+)/s', $raw, $cf);
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return [
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'jail' => $jail,
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'currently_banned'=> (int)($banned[1] ?? 0),
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'total_banned' => (int)($total[1] ?? 0),
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'currently_failed'=> (int)($failed[1] ?? 0),
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'banned_ips' => $ipList,
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'raw' => $raw,
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];
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}
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// ── Dispatch ───────────────────────────────────────────────────────────────
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switch ($action) {
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// ── UFW status + rules ────────────────────────────────────────────────
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case 'status':
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Response::json(['status' => 'ok', 'data' => ufw_status()]);
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break;
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// ── UFW enable/disable ────────────────────────────────────────────────
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case 'enable':
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fw_exec('ufw --force enable');
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novacpx_log('info', 'Firewall enabled');
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audit('firewall.enable', 'ufw');
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Response::success(['active' => true], 'Firewall enabled');
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break;
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case 'disable':
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fw_exec('ufw --force disable');
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novacpx_log('info', 'Firewall disabled');
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audit('firewall.disable', 'ufw');
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Response::success(['active' => false], 'Firewall disabled');
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break;
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// ── Add rule ──────────────────────────────────────────────────────────
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case 'add-rule':
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/*
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* body: action (allow|deny|reject|limit),
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* direction (in|out),
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* port (number or range like 8000:9000),
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* proto (tcp|udp|any),
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* from_ip (IP/CIDR or "any"),
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* to_ip (IP/CIDR or "any"),
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* comment
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*/
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$rAction = strtolower(trim($body['action'] ?? 'allow'));
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$direction = strtolower(trim($body['direction'] ?? 'in'));
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$port = trim($body['port'] ?? '');
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$proto = strtolower(trim($body['proto'] ?? 'tcp'));
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$fromIp = trim($body['from_ip'] ?? 'any');
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$toIp = trim($body['to_ip'] ?? 'any');
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$comment = preg_replace('/[^a-zA-Z0-9 _\-.]/', '', trim($body['comment'] ?? ''));
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if (!in_array($rAction, ['allow','deny','reject','limit'])) Response::error('Invalid action');
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if (!in_array($direction, ['in','out',''])) Response::error('Invalid direction');
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// Build ufw command
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$cmd = 'ufw';
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if ($direction) $cmd .= " {$direction}";
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$cmd .= " {$rAction}";
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if ($fromIp && $fromIp !== 'any') {
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$cmd .= " from " . escapeshellarg($fromIp);
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if ($toIp && $toIp !== 'any') $cmd .= " to " . escapeshellarg($toIp);
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}
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if ($port) {
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$protoStr = ($proto && $proto !== 'any') ? "/{$proto}" : '';
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$cmd .= " port " . escapeshellarg($port) . $protoStr;
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}
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if ($comment) $cmd .= " comment " . escapeshellarg($comment);
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$out = fw_exec($cmd);
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novacpx_log('info', "Firewall rule added: $cmd");
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audit('firewall.add-rule', $cmd);
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Response::success(['output' => $out, 'cmd' => $cmd], 'Rule added');
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break;
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// ── Quick allow/deny (simple port shortcut) ───────────────────────────
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case 'allow-port':
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$portProto = trim($body['port'] ?? '');
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$fromIp = trim($body['from_ip'] ?? '');
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if (!$portProto) Response::error('port required');
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$fromPart = $fromIp ? " from " . escapeshellarg($fromIp) : '';
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$out = fw_exec("ufw allow{$fromPart} " . escapeshellarg($portProto));
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audit('firewall.allow-port', $portProto);
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Response::success(['output' => $out], "Allowed $portProto");
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break;
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case 'deny-port':
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$portProto = trim($body['port'] ?? '');
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$fromIp = trim($body['from_ip'] ?? '');
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if (!$portProto) Response::error('port required');
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$fromPart = $fromIp ? " from " . escapeshellarg($fromIp) : '';
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$out = fw_exec("ufw deny{$fromPart} " . escapeshellarg($portProto));
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audit('firewall.deny-port', $portProto);
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Response::success(['output' => $out], "Denied $portProto");
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break;
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// ── Delete rule by number ─────────────────────────────────────────────
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case 'delete-rule':
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$num = (int)($body['num'] ?? 0);
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if ($num < 1) Response::error('Invalid rule number');
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$out = fw_exec("echo y | ufw delete {$num}");
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novacpx_log('info', "Firewall rule #{$num} deleted");
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audit('firewall.delete-rule', "rule:{$num}");
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Response::success(['output' => $out], "Rule #$num deleted");
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break;
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// ── Set default policy ────────────────────────────────────────────────
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case 'default-policy':
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$direction = strtolower(trim($body['direction'] ?? 'incoming'));
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$policy = strtolower(trim($body['policy'] ?? 'deny'));
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if (!in_array($direction, ['incoming','outgoing','routed'])) Response::error('Invalid direction');
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if (!in_array($policy, ['allow','deny','reject'])) Response::error('Invalid policy');
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$out = fw_exec("ufw default {$policy} {$direction}");
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audit('firewall.default-policy', "{$direction}:{$policy}");
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Response::success(['output' => $out], "Default $direction set to $policy");
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break;
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// ── Reset UFW to defaults ─────────────────────────────────────────────
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case 'reset':
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$out = fw_exec('echo y | ufw reset');
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// Re-apply essentials
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fw_exec('ufw allow ssh');
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fw_exec('ufw allow 80/tcp');
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fw_exec('ufw allow 443/tcp');
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foreach ([PORT_USER, PORT_RESELLER, PORT_ADMIN, PORT_WEBMAIL] as $p) {
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fw_exec("ufw allow {$p}/tcp");
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}
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fw_exec('ufw --force enable');
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novacpx_log('warn', 'Firewall reset to defaults');
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audit('firewall.reset', 'ufw');
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Response::success(['output' => $out], 'Firewall reset — SSH, HTTP, HTTPS, and panel ports re-applied');
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break;
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// ── Allow/block IP ────────────────────────────────────────────────────
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case 'allow-ip':
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$ip = trim($body['ip'] ?? '');
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if (!$ip) Response::error('ip required');
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if (!filter_var(explode('/', $ip)[0], FILTER_VALIDATE_IP)) Response::error('Invalid IP');
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$out = fw_exec("ufw allow from " . escapeshellarg($ip));
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// Store in trusted_ips setting
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$existing = json_decode($db->fetchOne("SELECT value FROM settings WHERE `key`='trusted_ips'")['value'] ?? '[]', true) ?: [];
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if (!in_array($ip, $existing)) {
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$existing[] = $ip;
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$db->execute("INSERT INTO settings (`key`,`value`) VALUES ('trusted_ips',?) ON DUPLICATE KEY UPDATE `value`=?", [json_encode($existing), json_encode($existing)]);
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}
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audit('firewall.allow-ip', $ip);
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Response::success(['output' => $out], "IP $ip allowed");
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break;
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case 'block-ip':
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$ip = trim($body['ip'] ?? '');
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if (!$ip) Response::error('ip required');
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if (!filter_var(explode('/', $ip)[0], FILTER_VALIDATE_IP)) Response::error('Invalid IP');
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$out = fw_exec("ufw deny from " . escapeshellarg($ip));
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// Store in blocked_ips setting
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$existing = json_decode($db->fetchOne("SELECT value FROM settings WHERE `key`='blocked_ips'")['value'] ?? '[]', true) ?: [];
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if (!in_array($ip, $existing)) {
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$existing[] = $ip;
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$db->execute("INSERT INTO settings (`key`,`value`) VALUES ('blocked_ips',?) ON DUPLICATE KEY UPDATE `value`=?", [json_encode($existing), json_encode($existing)]);
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}
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audit('firewall.block-ip', $ip);
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Response::success(['output' => $out], "IP $ip blocked");
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break;
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case 'remove-ip':
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$ip = trim($body['ip'] ?? '');
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$act = trim($body['action'] ?? 'allow');
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if (!$ip) Response::error('ip required');
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$out = fw_exec("ufw delete {$act} from " . escapeshellarg($ip));
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// Remove from DB list
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foreach (['trusted_ips','blocked_ips'] as $key) {
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$existing = json_decode($db->fetchOne("SELECT value FROM settings WHERE `key`=?", [$key])['value'] ?? '[]', true) ?: [];
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$existing = array_values(array_filter($existing, fn($i) => $i !== $ip));
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$db->execute("INSERT INTO settings (`key`,`value`) VALUES (?,?) ON DUPLICATE KEY UPDATE `value`=?", [$key, json_encode($existing), json_encode($existing)]);
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}
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audit('firewall.remove-ip', $ip);
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Response::success(['output' => $out], "IP $ip rule removed");
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break;
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// ── Trusted/blocked IP lists ──────────────────────────────────────────
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case 'ip-lists':
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$trusted = json_decode($db->fetchOne("SELECT value FROM settings WHERE `key`='trusted_ips'")['value'] ?? '[]', true) ?: [];
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$blocked = json_decode($db->fetchOne("SELECT value FROM settings WHERE `key`='blocked_ips'")['value'] ?? '[]', true) ?: [];
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Response::success(['trusted' => $trusted, 'blocked' => $blocked]);
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break;
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// ── Fail2Ban: list jails with stats ───────────────────────────────────
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case 'f2b-status':
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$jails = f2b_jails();
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$result = [];
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foreach ($jails as $j) {
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$result[] = f2b_jail_detail($j);
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}
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Response::success(['jails' => $result]);
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break;
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// ── Fail2Ban: single jail details ─────────────────────────────────────
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case 'f2b-jail':
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$jail = preg_replace('/[^a-z0-9_\-]/', '', trim($body['jail'] ?? ''));
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if (!$jail) Response::error('jail required');
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Response::success(f2b_jail_detail($jail));
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break;
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// ── Fail2Ban: unban IP from all or specific jail ──────────────────────
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case 'f2b-unban':
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$ip = trim($body['ip'] ?? '');
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$jail = preg_replace('/[^a-z0-9_\-]/', '', trim($body['jail'] ?? ''));
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if (!$ip) Response::error('ip required');
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if (!filter_var($ip, FILTER_VALIDATE_IP)) Response::error('Invalid IP');
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$results = [];
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$targets = $jail ? [$jail] : f2b_jails();
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foreach ($targets as $j) {
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$out = fw_exec("fail2ban-client set " . escapeshellarg($j) . " unbanip " . escapeshellarg($ip));
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$results[$j] = $out;
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}
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audit('firewall.f2b-unban', "$ip from " . ($jail ?: 'all'));
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Response::success(['results' => $results], "Unbanned $ip");
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break;
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// ── Fail2Ban: manually ban IP ─────────────────────────────────────────
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case 'f2b-ban':
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$ip = trim($body['ip'] ?? '');
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$jail = preg_replace('/[^a-z0-9_\-]/', '', trim($body['jail'] ?? 'sshd'));
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if (!$ip) Response::error('ip required');
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if (!filter_var($ip, FILTER_VALIDATE_IP)) Response::error('Invalid IP');
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$out = fw_exec("fail2ban-client set " . escapeshellarg($jail) . " banip " . escapeshellarg($ip));
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audit('firewall.f2b-ban', "$ip in $jail");
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Response::success(['output' => $out], "Banned $ip in $jail");
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break;
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// ── Fail2Ban: reload config ───────────────────────────────────────────
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case 'f2b-reload':
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$out = fw_exec('fail2ban-client reload');
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audit('firewall.f2b-reload', 'fail2ban');
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Response::success(['output' => $out], 'Fail2Ban reloaded');
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break;
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// ── Fail2Ban: restart ─────────────────────────────────────────────────
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case 'f2b-restart':
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$out = fw_exec('sudo systemctl restart fail2ban 2>&1');
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audit('firewall.f2b-restart', 'fail2ban');
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Response::success(['output' => $out], 'Fail2Ban restarted');
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break;
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// ── Fail2Ban ignoreip: list ───────────────────────────────────────────
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case 'f2b-ignoreip-list':
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Response::success([
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'ignoreip' => f2b_get_ignoreip(),
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'detected' => local_ips(),
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]);
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break;
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// ── Fail2Ban ignoreip: add ────────────────────────────────────────────
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case 'f2b-ignoreip-add':
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$ip = trim($body['ip'] ?? '');
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if (!$ip) Response::error('ip required');
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// Validate IP or CIDR
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$base = explode('/', $ip)[0];
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if (!filter_var($base, FILTER_VALIDATE_IP)) Response::error('Invalid IP or CIDR');
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$list = f2b_get_ignoreip();
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if (!in_array($ip, $list)) {
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$list[] = $ip;
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f2b_set_ignoreip($list);
|
|
}
|
|
audit('firewall.f2b-ignoreip-add', $ip);
|
|
novacpx_log('info', "Fail2Ban ignoreip added: $ip");
|
|
Response::success(['ignoreip' => f2b_get_ignoreip()], "$ip added to Fail2Ban whitelist");
|
|
break;
|
|
|
|
// ── Fail2Ban ignoreip: remove ─────────────────────────────────────────
|
|
case 'f2b-ignoreip-remove':
|
|
$ip = trim($body['ip'] ?? '');
|
|
if (!$ip) Response::error('ip required');
|
|
// Never remove loopback
|
|
if ($ip === '127.0.0.0/8' || $ip === '127.0.0.1' || $ip === '::1') {
|
|
Response::error('Cannot remove loopback address from whitelist');
|
|
}
|
|
$list = array_values(array_filter(f2b_get_ignoreip(), fn($i) => $i !== $ip));
|
|
f2b_set_ignoreip($list);
|
|
audit('firewall.f2b-ignoreip-remove', $ip);
|
|
novacpx_log('info', "Fail2Ban ignoreip removed: $ip");
|
|
Response::success(['ignoreip' => f2b_get_ignoreip()], "$ip removed from Fail2Ban whitelist");
|
|
break;
|
|
|
|
// ── Fail2Ban ignoreip: reset to server defaults ────────────────────────
|
|
case 'f2b-ignoreip-reset':
|
|
$defaults = local_ips();
|
|
f2b_set_ignoreip($defaults);
|
|
audit('firewall.f2b-ignoreip-reset', implode(' ', $defaults));
|
|
Response::success(['ignoreip' => $defaults], 'Whitelist reset to server defaults');
|
|
break;
|
|
|
|
// ── UFW: raw command (admin escape hatch) ─────────────────────────────
|
|
case 'raw':
|
|
$cmd = trim($body['cmd'] ?? '');
|
|
if (!$cmd) Response::error('cmd required');
|
|
// Whitelist safe ufw sub-commands only
|
|
if (!preg_match('/^ufw\s+(status|show|logging|allow|deny|reject|limit|delete|insert|prepend|route|default)\s/', "ufw $cmd")) {
|
|
Response::error('Command not permitted');
|
|
}
|
|
$out = fw_exec('ufw ' . $cmd);
|
|
audit('firewall.raw', $cmd);
|
|
Response::success(['output' => $out]);
|
|
break;
|
|
|
|
// ── UFW logging level ─────────────────────────────────────────────────
|
|
case 'set-logging':
|
|
$level = strtolower(trim($body['level'] ?? 'on'));
|
|
if (!in_array($level, ['off','on','low','medium','high','full'])) Response::error('Invalid level');
|
|
$out = fw_exec("ufw logging {$level}");
|
|
audit('firewall.logging', $level);
|
|
Response::success(['output' => $out], "Logging set to $level");
|
|
break;
|
|
|
|
default:
|
|
Response::error("Unknown firewall action: $action", 404);
|
|
}
|