135 lines
3.2 KiB
PHP
135 lines
3.2 KiB
PHP
<?php
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require_once __DIR__ . '/../.hta_config/conf.php';
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applyApiHeaders($API_HEADERS);
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handleCorsPreflight();
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// -------------------------------
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// Allow only POST
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// -------------------------------
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if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
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http_response_code(405);
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echo json_encode([
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'success' => false,
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'message' => 'Only POST method allowed'
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]);
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exit;
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}
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// -------------------------------
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// Read JSON body
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// -------------------------------
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$rawInput = file_get_contents('php://input');
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$data = json_decode($rawInput, true);
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if (!is_array($data)) {
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http_response_code(400);
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echo json_encode([
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'success' => false,
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'message' => 'Invalid JSON payload'
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]);
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exit;
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}
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// -------------------------------
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// Normalize domain
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// -------------------------------
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$domain = trim($data['domain'] ?? '');
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$domain = preg_replace('#^https?://#', '', $domain);
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$domain = preg_replace('#/.*$#', '', $domain);
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// -------------------------------
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// Domain validation
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// -------------------------------
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function validateDomain(string $domain): bool
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{
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return (bool) preg_match(
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'/^(?!-)(?:[a-zA-Z0-9-]{1,63}\.)+[a-zA-Z]{2,}$/',
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$domain
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);
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}
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if (!$domain || !validateDomain($domain)) {
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http_response_code(400);
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echo json_encode([
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'success' => false,
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'message' => 'Invalid domain'
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]);
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exit;
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}
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// -------------------------------
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// DNS lookup with timing
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// -------------------------------
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$startTime = microtime(true);
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$records = dns_get_record($domain, DNS_A);
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$lookupTimeMs = round((microtime(true) - $startTime) * 1000, 2);
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// -------------------------------
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// Resolver info
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// -------------------------------
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$resolver = 'system';
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$resolvConf = '/etc/resolv.conf';
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if (is_readable($resolvConf)) {
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$content = file_get_contents($resolvConf);
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if (preg_match('/nameserver\s+([^\s]+)/', $content, $m)) {
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$resolver = $m[1];
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}
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}
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// -------------------------------
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// Provider detection (heuristic)
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// -------------------------------
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function detectProvider(string $ip): string
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{
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if (preg_match('/^(104\.|172\.6[4-7]\.)/', $ip)) {
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return 'Cloudflare';
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}
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if (preg_match('/^(13\.|15\.|52\.|54\.)/', $ip)) {
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return 'AWS';
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}
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if (preg_match('/^(34\.|35\.)/', $ip)) {
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return 'Google Cloud';
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}
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return 'Unknown';
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}
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// -------------------------------
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// Build records
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// -------------------------------
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$result = [];
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if ($records !== false) {
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foreach ($records as $record) {
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if (!empty($record['ip'])) {
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$result[] = [
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'ip' => $record['ip'],
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'ttl' => $record['ttl'] ?? null,
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'provider' => detectProvider($record['ip'])
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];
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}
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}
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}
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// -------------------------------
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// Response
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// -------------------------------
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if (empty($result)) {
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echo json_encode([
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'success' => false,
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'domain' => $domain,
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'message' => 'No A records found',
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'records' => []
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]);
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exit;
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}
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echo json_encode([
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'success' => true,
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'domain' => $domain,
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'record_count' => count($result),
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'lookup_time_ms' => $lookupTimeMs,
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'resolver' => $resolver,
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'records' => $result
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]);
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