8559e903b9
Introduce DNS monitoring: add DnsService (comprehensive DNS lookup, crt.sh discovery, Cloudflare detection, IP enrichment) and a new DnsRecord model to persist snapshots, manage diffs, and provide queries/stats. Update DomainController to support a dns_monitoring_enabled flag, refactor WHOIS/DNS refresh logic into performWhoisRefresh/performDnsRefresh, and add endpoints for refreshWhois, refreshDns and refreshAll; send notifications when DNS monitoring is toggled. Add UI templates/tabs for DNS, billing, notifications, overview, SSL and WHOIS and wire DNS data into the domain view; expose cached IP details. Add cron/check_dns.php and migration 027_add_dns_monitoring.sql (and include it in installer migration lists). Other tweaks: safer EmailHelper subject handling, TldRegistry search improvements, domain sorting using an effective status (expiring_soon), Discord channel null-safe fields, settings UI additions (domain_view_template and cron staleness warnings), and route/migration updates. This enables scheduled and manual DNS scans with persistent records and notifications.
767 lines
26 KiB
PHP
767 lines
26 KiB
PHP
<?php
|
||
|
||
namespace App\Services;
|
||
|
||
class DnsService
|
||
{
|
||
private Logger $logger;
|
||
|
||
// https://www.cloudflare.com/ips-v4/ and /ips-v6/
|
||
private const CLOUDFLARE_IPV4_RANGES = [
|
||
'173.245.48.0/20',
|
||
'103.21.244.0/22',
|
||
'103.22.200.0/22',
|
||
'103.31.4.0/22',
|
||
'141.101.64.0/18',
|
||
'108.162.192.0/18',
|
||
'190.93.240.0/20',
|
||
'188.114.96.0/20',
|
||
'197.234.240.0/22',
|
||
'198.41.128.0/17',
|
||
'162.158.0.0/15',
|
||
'104.16.0.0/13',
|
||
'104.24.0.0/14',
|
||
'172.64.0.0/13',
|
||
'131.0.72.0/22',
|
||
];
|
||
|
||
private const CLOUDFLARE_IPV6_RANGES = [
|
||
'2400:cb00::/32',
|
||
'2606:4700::/32',
|
||
'2803:f800::/32',
|
||
'2405:b500::/32',
|
||
'2405:8100::/32',
|
||
'2a06:98c0::/29',
|
||
'2c0f:f248::/32',
|
||
];
|
||
|
||
private const SUBDOMAIN_WORDLIST = [
|
||
'www', 'mail', 'ftp', 'smtp', 'pop', 'pop3', 'imap', 'webmail', 'email',
|
||
'ns1', 'ns2', 'ns3', 'ns4', 'dns', 'dns1', 'dns2',
|
||
'mx', 'mx1', 'mx2', 'relay', 'gateway', 'mailgw',
|
||
'vpn', 'vpn1', 'vpn2', 'remote', 'access', 'proxy', 'fw', 'firewall',
|
||
'api', 'api2', 'app', 'app1', 'app2', 'dev', 'dev2',
|
||
'stage', 'staging', 'test', 'beta', 'demo', 'sandbox',
|
||
'admin', 'panel', 'portal', 'dashboard', 'cms', 'cpanel', 'whm', 'plesk',
|
||
'db', 'db1', 'db2', 'mysql', 'postgres', 'redis',
|
||
'cdn', 'cdn1', 'cdn2', 'static', 'assets', 'media', 'img', 'images', 'files',
|
||
'shop', 'store', 'pay', 'billing',
|
||
'blog', 'forum', 'wiki', 'docs',
|
||
'help', 'support', 'kb',
|
||
'git', 'gitlab', 'ci', 'jenkins',
|
||
'monitor', 'status', 'grafana',
|
||
'sso', 'auth', 'login', 'id', 'oauth',
|
||
'm', 'mobile',
|
||
'intranet', 'internal', 'corp',
|
||
'backup', 'old', 'legacy',
|
||
'cloud', 'autodiscover', 'autoconfig', 'lyncdiscover', 'sip',
|
||
'server', 'server1', 'server2', 'host', 'node1', 'node2',
|
||
'web', 'web1', 'web2', 'www1', 'www2',
|
||
'mail1', 'mail2', 'mail3', 'smtp1', 'smtp2', 'mta',
|
||
'lb', 'haproxy', 'nginx', 'cache',
|
||
'owa', 'exchange', 'outlook',
|
||
'ns', 'mx0',
|
||
];
|
||
|
||
private const SPECIAL_TXT_SUBDOMAINS = [
|
||
'_dmarc',
|
||
'_mta-sts',
|
||
];
|
||
|
||
private const ROOT_RECORD_TYPES = [
|
||
DNS_A => 'A',
|
||
DNS_AAAA => 'AAAA',
|
||
DNS_MX => 'MX',
|
||
DNS_TXT => 'TXT',
|
||
DNS_NS => 'NS',
|
||
DNS_CNAME => 'CNAME',
|
||
DNS_SOA => 'SOA',
|
||
DNS_SRV => 'SRV',
|
||
DNS_CAA => 'CAA',
|
||
];
|
||
|
||
public function __construct()
|
||
{
|
||
$this->logger = new Logger('dns');
|
||
}
|
||
|
||
// ========================================================================
|
||
// MAIN LOOKUP
|
||
// ========================================================================
|
||
|
||
/**
|
||
* Comprehensive DNS lookup for a domain.
|
||
* Scans root + common subdomains + targets extracted from NS/MX/CNAME.
|
||
* Resolves NS/MX targets to A/AAAA IPs.
|
||
*
|
||
* @param string $domain The domain to scan
|
||
* @param array $extraSubdomains Additional subdomain candidates (e.g. from crt.sh or previous scans)
|
||
*/
|
||
public function lookup(string $domain, array $extraSubdomains = []): array
|
||
{
|
||
$this->logger->info("DNS lookup started", ['domain' => $domain]);
|
||
|
||
$records = [
|
||
'A' => [], 'AAAA' => [], 'MX' => [], 'TXT' => [],
|
||
'NS' => [], 'CNAME' => [], 'SOA' => [], 'SRV' => [], 'CAA' => [],
|
||
];
|
||
$seen = []; // "TYPE:host:value" dedup keys
|
||
|
||
// Phase 1: Root domain — query each type individually
|
||
foreach (self::ROOT_RECORD_TYPES as $dnsConst => $typeName) {
|
||
$this->queryAndCollect($domain, $dnsConst, $typeName, $domain, $records, $seen);
|
||
}
|
||
|
||
// Phase 1b: DNS_ALL fallback to catch anything we missed
|
||
$this->queryAllFallback($domain, $domain, $records, $seen);
|
||
|
||
// Phase 1c: gethostbynamel fallback for A records
|
||
if (empty($records['A'])) {
|
||
$ips = @gethostbynamel($domain);
|
||
if (is_array($ips)) {
|
||
foreach ($ips as $ip) {
|
||
$this->addIfNew('A', [
|
||
'host' => '@', 'value' => $ip, 'ttl' => 0,
|
||
'is_cloudflare' => $this->isCloudflareIp($ip),
|
||
'raw' => ['host' => $domain, 'type' => 'A', 'ip' => $ip, 'ttl' => 0],
|
||
], $records, $seen);
|
||
}
|
||
}
|
||
}
|
||
|
||
// Phase 2: Build subdomain candidates from wordlist + extras + targets found in NS/MX/CNAME/SRV
|
||
$candidates = array_merge(self::SUBDOMAIN_WORDLIST, $extraSubdomains);
|
||
foreach (['NS', 'MX', 'CNAME', 'SRV'] as $type) {
|
||
foreach ($records[$type] as $rec) {
|
||
$target = rtrim($rec['value'] ?? '', '.');
|
||
if ($target && str_ends_with(strtolower($target), '.' . strtolower($domain))) {
|
||
$sub = str_replace('.' . $domain, '', strtolower($target));
|
||
if ($sub && !in_array($sub, $candidates)) {
|
||
$candidates[] = $sub;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
$candidates = array_unique($candidates);
|
||
|
||
// Phase 3: Probe subdomains — fast checkdnsrr existence test first
|
||
$discovered = [];
|
||
foreach ($candidates as $sub) {
|
||
$fqdn = "{$sub}.{$domain}";
|
||
if ($this->subdomainExists($fqdn)) {
|
||
$discovered[] = $sub;
|
||
}
|
||
}
|
||
|
||
// Phase 4: Deep scan discovered subdomains (A, AAAA, CNAME, TXT)
|
||
foreach ($discovered as $sub) {
|
||
$fqdn = "{$sub}.{$domain}";
|
||
$this->queryAndCollect($fqdn, DNS_A, 'A', $domain, $records, $seen);
|
||
$this->queryAndCollect($fqdn, DNS_AAAA, 'AAAA', $domain, $records, $seen);
|
||
$this->queryAndCollect($fqdn, DNS_CNAME, 'CNAME', $domain, $records, $seen);
|
||
// TXT only for known useful subdomains
|
||
if (in_array($sub, ['_dmarc', '_mta-sts', '_domainkey']) || str_starts_with($sub, '_')) {
|
||
$this->queryAndCollect($fqdn, DNS_TXT, 'TXT', $domain, $records, $seen);
|
||
}
|
||
}
|
||
|
||
// Phase 4b: Special TXT subdomains (always query even if not "discovered")
|
||
foreach (self::SPECIAL_TXT_SUBDOMAINS as $sub) {
|
||
$fqdn = "{$sub}.{$domain}";
|
||
$this->queryAndCollect($fqdn, DNS_TXT, 'TXT', $domain, $records, $seen);
|
||
}
|
||
|
||
// Phase 5: Resolve MX targets that are under this domain — add their A/AAAA records
|
||
foreach ($records['MX'] as $mxRec) {
|
||
$target = rtrim($mxRec['value'] ?? '', '.');
|
||
if ($target && str_ends_with(strtolower($target), '.' . strtolower($domain))) {
|
||
$this->queryAndCollect($target, DNS_A, 'A', $domain, $records, $seen);
|
||
$this->queryAndCollect($target, DNS_AAAA, 'AAAA', $domain, $records, $seen);
|
||
}
|
||
}
|
||
|
||
// Phase 6: Resolve NS server IPs — store in raw data for display
|
||
foreach ($records['NS'] as &$nsRec) {
|
||
$nsHost = rtrim($nsRec['value'] ?? '', '.');
|
||
if ($nsHost) {
|
||
$nsIps = $this->resolveHostIps($nsHost);
|
||
$nsRec['raw']['_ns_ips'] = $nsIps;
|
||
}
|
||
}
|
||
unset($nsRec);
|
||
|
||
// Sort A/AAAA: root first, then alphabetical
|
||
foreach (['A', 'AAAA'] as $type) {
|
||
usort($records[$type], function ($a, $b) {
|
||
if ($a['host'] === '@') return -1;
|
||
if ($b['host'] === '@') return 1;
|
||
return strcmp($a['host'], $b['host']);
|
||
});
|
||
}
|
||
|
||
$totalRecords = array_sum(array_map('count', $records));
|
||
$this->logger->info("DNS lookup completed", [
|
||
'domain' => $domain,
|
||
'total_records' => $totalRecords,
|
||
'subdomains_discovered' => count($discovered),
|
||
]);
|
||
|
||
return $records;
|
||
}
|
||
|
||
// ========================================================================
|
||
// LOOKUP HELPERS
|
||
// ========================================================================
|
||
|
||
/**
|
||
* Query a FQDN for a specific record type and collect deduplicated results.
|
||
*/
|
||
private function queryAndCollect(
|
||
string $fqdn, int $dnsConst, string $typeName,
|
||
string $baseDomain, array &$records, array &$seen
|
||
): void {
|
||
try {
|
||
$raw = @dns_get_record($fqdn, $dnsConst);
|
||
if ($raw === false || empty($raw)) {
|
||
return;
|
||
}
|
||
foreach ($raw as $entry) {
|
||
$parsed = $this->parseRecord($typeName, $entry, $baseDomain);
|
||
if ($parsed) {
|
||
$this->addIfNew($typeName, $parsed, $records, $seen);
|
||
}
|
||
}
|
||
} catch (\Throwable $e) {
|
||
// Non-existent subdomain or network issue — not worth logging
|
||
}
|
||
}
|
||
|
||
/**
|
||
* DNS_ALL fallback to catch records missed by individual queries.
|
||
*/
|
||
private function queryAllFallback(string $fqdn, string $baseDomain, array &$records, array &$seen): void
|
||
{
|
||
try {
|
||
$all = @dns_get_record($fqdn, DNS_ALL);
|
||
if (!is_array($all) || empty($all)) {
|
||
return;
|
||
}
|
||
foreach ($all as $entry) {
|
||
$type = strtoupper($entry['type'] ?? '');
|
||
if ($type && isset($records[$type])) {
|
||
$parsed = $this->parseRecord($type, $entry, $baseDomain);
|
||
if ($parsed) {
|
||
$this->addIfNew($type, $parsed, $records, $seen);
|
||
}
|
||
}
|
||
}
|
||
} catch (\Throwable $e) {
|
||
// Ignore
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Add a record only if it hasn't been seen before (dedup).
|
||
*/
|
||
private function addIfNew(string $type, array $parsed, array &$records, array &$seen): void
|
||
{
|
||
$priority = $parsed['priority'] ?? '';
|
||
$dedupKey = "{$type}:{$parsed['host']}:{$parsed['value']}:{$priority}";
|
||
if (isset($seen[$dedupKey])) {
|
||
return;
|
||
}
|
||
$seen[$dedupKey] = true;
|
||
$records[$type][] = $parsed;
|
||
}
|
||
|
||
/**
|
||
* Fast existence check for a subdomain.
|
||
*/
|
||
private function subdomainExists(string $fqdn): bool
|
||
{
|
||
if (@checkdnsrr($fqdn, 'A')) return true;
|
||
if (@checkdnsrr($fqdn, 'AAAA')) return true;
|
||
if (@checkdnsrr($fqdn, 'CNAME')) return true;
|
||
$ip = @gethostbyname($fqdn);
|
||
return ($ip !== $fqdn);
|
||
}
|
||
|
||
/**
|
||
* Resolve a hostname to its A and AAAA IPs.
|
||
*/
|
||
private function resolveHostIps(string $hostname): array
|
||
{
|
||
$ips = ['ipv4' => [], 'ipv6' => []];
|
||
|
||
$a = @dns_get_record($hostname, DNS_A);
|
||
if (is_array($a)) {
|
||
foreach ($a as $r) {
|
||
if (!empty($r['ip'])) {
|
||
$ips['ipv4'][] = $r['ip'];
|
||
}
|
||
}
|
||
}
|
||
|
||
$aaaa = @dns_get_record($hostname, DNS_AAAA);
|
||
if (is_array($aaaa)) {
|
||
foreach ($aaaa as $r) {
|
||
if (!empty($r['ipv6'])) {
|
||
$ips['ipv6'][] = $r['ipv6'];
|
||
}
|
||
}
|
||
}
|
||
|
||
return $ips;
|
||
}
|
||
|
||
// ========================================================================
|
||
// CERTIFICATE TRANSPARENCY (crt.sh)
|
||
// ========================================================================
|
||
|
||
/**
|
||
* Discover subdomains via crt.sh Certificate Transparency logs.
|
||
* Returns an array of subdomain labels (e.g. ['www', 'mail', 'api']).
|
||
* Slow/unreliable — use only in cron, not on manual refresh.
|
||
*/
|
||
public function crtshSubdomains(string $domain): array
|
||
{
|
||
$url = 'https://crt.sh/?q=' . urlencode("%.$domain") . '&output=json';
|
||
|
||
$ctx = stream_context_create([
|
||
'http' => [
|
||
'timeout' => 30,
|
||
'ignore_errors' => true,
|
||
'header' => "User-Agent: DomainMonitor/1.0\r\n",
|
||
],
|
||
'ssl' => [
|
||
'verify_peer' => false,
|
||
'verify_peer_name' => false,
|
||
],
|
||
]);
|
||
|
||
$json = @file_get_contents($url, false, $ctx);
|
||
if ($json === false) {
|
||
$this->logger->warning('crt.sh request failed', ['domain' => $domain]);
|
||
return [];
|
||
}
|
||
|
||
$entries = @json_decode($json, true);
|
||
if (!is_array($entries)) {
|
||
return [];
|
||
}
|
||
|
||
$subdomains = [];
|
||
$domainLower = strtolower($domain);
|
||
|
||
foreach ($entries as $entry) {
|
||
$name = $entry['name_value'] ?? '';
|
||
foreach (explode("\n", $name) as $n) {
|
||
$n = strtolower(trim($n));
|
||
$n = ltrim($n, '*.');
|
||
if (empty($n)) continue;
|
||
|
||
if ($n === $domainLower) continue;
|
||
|
||
if (str_ends_with($n, '.' . $domainLower)) {
|
||
$sub = str_replace('.' . $domainLower, '', $n);
|
||
if ($sub !== '' && !isset($subdomains[$sub])) {
|
||
$subdomains[$sub] = true;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
$result = array_keys($subdomains);
|
||
$this->logger->info('crt.sh discovery completed', [
|
||
'domain' => $domain,
|
||
'subdomains_found' => count($result),
|
||
]);
|
||
|
||
return $result;
|
||
}
|
||
|
||
// ========================================================================
|
||
// RECORD PARSING
|
||
// ========================================================================
|
||
|
||
/**
|
||
* Parse a raw dns_get_record entry into a normalized record.
|
||
*/
|
||
private function parseRecord(string $type, array $entry, string $domain): ?array
|
||
{
|
||
$host = $entry['host'] ?? $domain;
|
||
$hostLower = strtolower($host);
|
||
$domainLower = strtolower($domain);
|
||
|
||
// Skip records that resolved to external domains (e.g. CNAME target chains)
|
||
if ($hostLower !== $domainLower && !str_ends_with($hostLower, '.' . $domainLower)) {
|
||
return null;
|
||
}
|
||
|
||
$hostLabel = ($hostLower === $domainLower)
|
||
? '@'
|
||
: str_ireplace('.' . $domain, '', $host);
|
||
$ttl = $entry['ttl'] ?? null;
|
||
|
||
switch ($type) {
|
||
case 'A':
|
||
$ip = $entry['ip'] ?? '';
|
||
if (empty($ip)) return null;
|
||
return [
|
||
'host' => $hostLabel,
|
||
'value' => $ip,
|
||
'ttl' => $ttl,
|
||
'is_cloudflare' => $this->isCloudflareIp($ip),
|
||
'raw' => $entry,
|
||
];
|
||
|
||
case 'AAAA':
|
||
$ip = $entry['ipv6'] ?? '';
|
||
if (empty($ip)) return null;
|
||
return [
|
||
'host' => $hostLabel,
|
||
'value' => $ip,
|
||
'ttl' => $ttl,
|
||
'is_cloudflare' => $this->isCloudflareIpv6($ip),
|
||
'raw' => $entry,
|
||
];
|
||
|
||
case 'MX':
|
||
$target = $entry['target'] ?? '';
|
||
if (empty($target)) return null;
|
||
return [
|
||
'host' => $hostLabel,
|
||
'value' => $target,
|
||
'priority' => $entry['pri'] ?? 0,
|
||
'ttl' => $ttl,
|
||
'raw' => $entry,
|
||
];
|
||
|
||
case 'TXT':
|
||
$txt = $entry['txt'] ?? '';
|
||
if (empty($txt)) return null;
|
||
return [
|
||
'host' => $hostLabel,
|
||
'value' => $txt,
|
||
'ttl' => $ttl,
|
||
'txt_type' => $this->classifyTxtRecord($txt),
|
||
'raw' => $entry,
|
||
];
|
||
|
||
case 'NS':
|
||
$target = $entry['target'] ?? '';
|
||
if (empty($target)) return null;
|
||
return [
|
||
'host' => $hostLabel,
|
||
'value' => $target,
|
||
'ttl' => $ttl,
|
||
'raw' => $entry,
|
||
];
|
||
|
||
case 'CNAME':
|
||
$target = $entry['target'] ?? '';
|
||
if (empty($target)) return null;
|
||
return [
|
||
'host' => $hostLabel,
|
||
'value' => $target,
|
||
'ttl' => $ttl,
|
||
'raw' => $entry,
|
||
];
|
||
|
||
case 'SOA':
|
||
return [
|
||
'host' => $hostLabel,
|
||
'value' => $entry['mname'] ?? '',
|
||
'rname' => $entry['rname'] ?? '',
|
||
'serial' => $entry['serial'] ?? 0,
|
||
'refresh' => $entry['refresh'] ?? 0,
|
||
'retry' => $entry['retry'] ?? 0,
|
||
'expire' => $entry['expire'] ?? 0,
|
||
'minimum' => $entry['minimum-ttl'] ?? 0,
|
||
'ttl' => $ttl,
|
||
'raw' => $entry,
|
||
];
|
||
|
||
case 'SRV':
|
||
$target = $entry['target'] ?? '';
|
||
if (empty($target)) return null;
|
||
return [
|
||
'host' => $hostLabel,
|
||
'value' => $target,
|
||
'priority' => $entry['pri'] ?? 0,
|
||
'weight' => $entry['weight'] ?? 0,
|
||
'port' => $entry['port'] ?? 0,
|
||
'ttl' => $ttl,
|
||
'raw' => $entry,
|
||
];
|
||
|
||
case 'CAA':
|
||
$value = ($entry['flags'] ?? 0) . ' ' . ($entry['tag'] ?? '') . ' "' . ($entry['value'] ?? '') . '"';
|
||
return [
|
||
'host' => $hostLabel,
|
||
'value' => $value,
|
||
'flags' => $entry['flags'] ?? 0,
|
||
'tag' => $entry['tag'] ?? '',
|
||
'ca' => $entry['value'] ?? '',
|
||
'ttl' => $ttl,
|
||
'raw' => $entry,
|
||
];
|
||
|
||
default:
|
||
return null;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Classify a TXT record's purpose.
|
||
*/
|
||
private function classifyTxtRecord(string $value): string
|
||
{
|
||
$lower = strtolower($value);
|
||
if (str_starts_with($lower, 'v=spf1')) return 'SPF';
|
||
if (str_starts_with($lower, 'v=dkim1')) return 'DKIM';
|
||
if (str_starts_with($lower, 'v=dmarc1')) return 'DMARC';
|
||
if (str_contains($lower, 'google-site-verification')) return 'Google Verification';
|
||
if (str_contains($lower, 'ms=')) return 'Microsoft Verification';
|
||
if (str_contains($lower, 'facebook-domain-verification')) return 'Facebook Verification';
|
||
if (str_contains($lower, 'apple-domain-verification')) return 'Apple Verification';
|
||
if (str_contains($lower, 'amazonses:')) return 'Amazon SES';
|
||
if (str_contains($lower, 'docusign')) return 'DocuSign';
|
||
if (str_contains($lower, 'atlassian-domain-verification')) return 'Atlassian Verification';
|
||
if (str_contains($lower, '_mta-sts')) return 'MTA-STS';
|
||
return 'TXT';
|
||
}
|
||
|
||
// ========================================================================
|
||
// CLOUDFLARE DETECTION
|
||
// ========================================================================
|
||
|
||
public function isCloudflareIp(string $ip): bool
|
||
{
|
||
if (empty($ip) || !filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
|
||
return false;
|
||
}
|
||
|
||
$ipLong = ip2long($ip);
|
||
if ($ipLong === false) {
|
||
return false;
|
||
}
|
||
|
||
foreach (self::CLOUDFLARE_IPV4_RANGES as $cidr) {
|
||
[$subnet, $mask] = explode('/', $cidr);
|
||
$subnetLong = ip2long($subnet);
|
||
$maskLong = ~((1 << (32 - (int)$mask)) - 1);
|
||
|
||
if (($ipLong & $maskLong) === ($subnetLong & $maskLong)) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
public function isCloudflareIpv6(string $ip): bool
|
||
{
|
||
if (empty($ip) || !filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
|
||
return false;
|
||
}
|
||
|
||
$ipBin = inet_pton($ip);
|
||
if ($ipBin === false) {
|
||
return false;
|
||
}
|
||
|
||
foreach (self::CLOUDFLARE_IPV6_RANGES as $cidr) {
|
||
[$subnet, $prefixLen] = explode('/', $cidr);
|
||
$subnetBin = inet_pton($subnet);
|
||
if ($subnetBin === false) {
|
||
continue;
|
||
}
|
||
|
||
$prefixLen = (int)$prefixLen;
|
||
$fullBytes = intdiv($prefixLen, 8);
|
||
$remainingBits = $prefixLen % 8;
|
||
|
||
$match = true;
|
||
for ($i = 0; $i < $fullBytes; $i++) {
|
||
if ($ipBin[$i] !== $subnetBin[$i]) {
|
||
$match = false;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if ($match && $remainingBits > 0 && $fullBytes < 16) {
|
||
$bitmask = 0xFF << (8 - $remainingBits) & 0xFF;
|
||
if ((ord($ipBin[$fullBytes]) & $bitmask) !== (ord($subnetBin[$fullBytes]) & $bitmask)) {
|
||
$match = false;
|
||
}
|
||
}
|
||
|
||
if ($match) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// ========================================================================
|
||
// IP DETAILS (PTR, ASN, GEO)
|
||
// ========================================================================
|
||
|
||
/**
|
||
* Batch-lookup IP details (ASN, PTR, org, country) for a list of IPs.
|
||
* PTR via gethostbyaddr(); ASN/geo via ip-api.com batch.
|
||
*/
|
||
public function lookupIpDetails(array $ips): array
|
||
{
|
||
$unique = array_values(array_unique(array_filter($ips)));
|
||
if (empty($unique)) {
|
||
return [];
|
||
}
|
||
|
||
$result = [];
|
||
|
||
foreach ($unique as $ip) {
|
||
$ptr = @gethostbyaddr($ip);
|
||
$result[$ip] = [
|
||
'reverse' => ($ptr !== false && $ptr !== $ip) ? $ptr : '',
|
||
];
|
||
}
|
||
|
||
$requestBody = [];
|
||
foreach ($unique as $ip) {
|
||
$requestBody[] = [
|
||
'query' => $ip,
|
||
'fields' => 'status,query,as,asname,isp,org,country,countryCode,regionName,city,hosting',
|
||
];
|
||
}
|
||
|
||
$context = stream_context_create([
|
||
'http' => [
|
||
'method' => 'POST',
|
||
'header' => "Content-Type: application/json\r\nUser-Agent: DomainMonitor/1.0",
|
||
'content' => json_encode($requestBody),
|
||
'timeout' => 5,
|
||
],
|
||
]);
|
||
|
||
$response = @file_get_contents('http://ip-api.com/batch', false, $context);
|
||
if ($response !== false) {
|
||
$data = json_decode($response, true);
|
||
if (is_array($data)) {
|
||
foreach ($data as $item) {
|
||
if (($item['status'] ?? '') === 'success' && isset($item['query'])) {
|
||
$result[$item['query']] = array_merge($result[$item['query']] ?? [], $item);
|
||
}
|
||
}
|
||
}
|
||
} else {
|
||
$this->logger->warning('ip-api.com batch request failed');
|
||
}
|
||
|
||
return $result;
|
||
}
|
||
|
||
// ========================================================================
|
||
// DIFF / NOTIFICATIONS
|
||
// ========================================================================
|
||
|
||
/**
|
||
* Compare two sets of DNS records and return changes.
|
||
*/
|
||
public function diffRecords(array $oldRecords, array $newRecords): array
|
||
{
|
||
$changes = ['added' => [], 'removed' => [], 'changed' => []];
|
||
|
||
$oldFlat = $this->flattenRecords($oldRecords);
|
||
$newFlat = $this->flattenRecords($newRecords);
|
||
|
||
foreach ($newFlat as $key => $record) {
|
||
if (!isset($oldFlat[$key])) {
|
||
$changes['added'][] = $record;
|
||
} elseif ($oldFlat[$key]['value'] !== $record['value']) {
|
||
$changes['changed'][] = [
|
||
'record' => $record,
|
||
'old_value' => $oldFlat[$key]['value'],
|
||
'new_value' => $record['value'],
|
||
];
|
||
}
|
||
}
|
||
|
||
foreach ($oldFlat as $key => $record) {
|
||
if (!isset($newFlat[$key])) {
|
||
$changes['removed'][] = $record;
|
||
}
|
||
}
|
||
|
||
return $changes;
|
||
}
|
||
|
||
private function flattenRecords(array $grouped): array
|
||
{
|
||
$flat = [];
|
||
foreach ($grouped as $type => $records) {
|
||
foreach ($records as $record) {
|
||
$host = $record['host'] ?? '@';
|
||
$value = $record['value'] ?? '';
|
||
$priority = $record['priority'] ?? '';
|
||
$key = "{$type}:{$host}:{$value}:{$priority}";
|
||
$flat[$key] = array_merge($record, ['record_type' => $type]);
|
||
}
|
||
}
|
||
return $flat;
|
||
}
|
||
|
||
public function formatChangesSummary(array $changes, string $domain): string
|
||
{
|
||
$parts = [];
|
||
|
||
if (!empty($changes['added'])) {
|
||
$parts[] = count($changes['added']) . " new record(s) added";
|
||
}
|
||
if (!empty($changes['removed'])) {
|
||
$parts[] = count($changes['removed']) . " record(s) removed";
|
||
}
|
||
if (!empty($changes['changed'])) {
|
||
$parts[] = count($changes['changed']) . " record(s) changed";
|
||
}
|
||
|
||
return empty($parts) ? '' : "DNS changes detected for {$domain}: " . implode(', ', $parts);
|
||
}
|
||
|
||
public function formatChangesDetail(array $changes, string $domain): string
|
||
{
|
||
$lines = ["🔄 DNS Changes Detected: {$domain}\n"];
|
||
|
||
if (!empty($changes['added'])) {
|
||
$lines[] = "➕ New Records:";
|
||
foreach ($changes['added'] as $r) {
|
||
$type = $r['record_type'] ?? 'UNKNOWN';
|
||
$lines[] = " {$type} {$r['host']} → {$r['value']}";
|
||
}
|
||
$lines[] = '';
|
||
}
|
||
|
||
if (!empty($changes['removed'])) {
|
||
$lines[] = "➖ Removed Records:";
|
||
foreach ($changes['removed'] as $r) {
|
||
$type = $r['record_type'] ?? 'UNKNOWN';
|
||
$lines[] = " {$type} {$r['host']} → {$r['value']}";
|
||
}
|
||
$lines[] = '';
|
||
}
|
||
|
||
if (!empty($changes['changed'])) {
|
||
$lines[] = "✏️ Changed Records:";
|
||
foreach ($changes['changed'] as $c) {
|
||
$type = $c['record']['record_type'] ?? 'UNKNOWN';
|
||
$lines[] = " {$type} {$c['record']['host']}: {$c['old_value']} → {$c['new_value']}";
|
||
}
|
||
$lines[] = '';
|
||
}
|
||
|
||
return implode("\n", $lines);
|
||
}
|
||
}
|