Add Brotli support detection to TldRegistryService

Introduces a static method to check for Brotli compression support and conditionally includes 'br' in the Accept-Encoding header for HTTP requests. Also removes old incremental migration files from the installer controller.

app/Controllers/InstallerController.php

@@ -39,14 +39,6 @@ class InstallerController extends Controller
         
         // For incremental updates from v1.0.0
         $incrementalMigrations = [
-            '001_create_tables.sql',
-            '002_create_users_table.sql',
-            '003_add_whois_fields.sql',
-            '004_create_tld_registry_table.sql',
-            '005_update_tld_import_logs.sql',
-            '006_add_complete_workflow_import_type.sql',
-            '007_add_app_and_email_settings.sql',
-            '008_add_notes_to_domains.sql',
             '009_add_authentication_features.sql',
             '010_add_app_version_setting.sql',
             '011_create_sessions_table.sql',

app/Services/TldRegistryService.php

@@ -14,6 +14,7 @@ class TldRegistryService
     private TldRegistry $tldModel;
     private TldImportLog $importLogModel;
     private Logger $logger;
+    private static ?bool $brotliSupported = null;
 
     // IANA URLs
     private const IANA_RDAP_URL = 'https://data.iana.org/rdap/dns.json';
@@ -21,6 +22,28 @@ class TldRegistryService
     private const IANA_TLD_LIST_URL = 'https://data.iana.org/TLD/tlds-alpha-by-domain.txt';
     private const IANA_RDAP_DOMAIN_URL = 'https://rdap.iana.org/domain/';
 
+    /**
+     * Check if Brotli compression is supported by the system
+     */
+    private static function isBrotliSupported(): bool
+    {
+        static $supported = null;
+        if ($supported !== null) return $supported;
+        
+        if (extension_loaded('brotli') || function_exists('brotli_compress')) {
+            return $supported = true;
+        }
+        
+        try {
+            $curlInfo = curl_version();
+            if (isset($curlInfo['encoding']) && stripos($curlInfo['encoding'], 'br') !== false) {
+                return $supported = true;
+            }
+        } catch (\Exception $e) {}
+        
+        return $supported = false;
+    }
+
     public function __construct()
     {
         $this->httpClient = new Client([
@@ -37,7 +60,7 @@ class TldRegistryService
                 'User-Agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
                 'Accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
                 'Accept-Language' => 'en-US,en;q=0.9',
-                'Accept-Encoding' => 'gzip, deflate, br',
+                'Accept-Encoding' => self::isBrotliSupported() ? 'gzip, deflate, br' : 'gzip, deflate',
                 'DNT' => '1',
                 'Connection' => 'keep-alive',
                 'Upgrade-Insecure-Requests' => '1',
@@ -71,7 +94,7 @@ class TldRegistryService
                 'User-Agent' => 'DomainMonitor/1.0 (TLD Registry Bot; compatible with IANA RDAP)',
                 'Accept' => 'application/json, application/rdap+json, */*;q=0.8',
                 'Accept-Language' => 'en-US,en;q=0.9',
-                'Accept-Encoding' => 'gzip, deflate, br',
+                'Accept-Encoding' => self::isBrotliSupported() ? 'gzip, deflate, br' : 'gzip, deflate',
                 'Connection' => 'keep-alive',
                 'Cache-Control' => 'no-cache'
             ],
@@ -103,7 +126,7 @@ class TldRegistryService
                 'User-Agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
                 'Accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
                 'Accept-Language' => 'en-US,en;q=0.9',
-                'Accept-Encoding' => 'gzip, deflate, br',
+                'Accept-Encoding' => self::isBrotliSupported() ? 'gzip, deflate, br' : 'gzip, deflate',
                 'DNT' => '1',
                 'Connection' => 'keep-alive',
                 'Upgrade-Insecure-Requests' => '1',