feat(fl_query_connectivity_plus_adapter): lookup based offline detection

2023-10-14 14:42:12 +06:00
parent 3e3047ffd4
commit 363404f9ed
5 changed files with 169 additions and 23 deletions
@@ -0,0 +1,55 @@
+import 'dart:io';
+
+import 'package:fl_query_connectivity_plus_adapter/connection_checker.dart';
+
+mixin ConnectionLookupMixin implements ConnectionLookup {
+  @override
+  Future<bool> doesConnectTo(String address) async {
+    try {
+      final result = await InternetAddress.lookup(address);
+      return result.isNotEmpty && result[0].rawAddress.isNotEmpty;
+    } catch (_) {
+      return false;
+    }
+  }
+
+  static const _vpnNames = [
+    'tun',
+    'tap',
+    'ppp',
+    'pptp',
+    'l2tp',
+    'ipsec',
+    'vpn',
+    'wireguard',
+    'openvpn',
+    'softether',
+    'proton',
+    'strongswan',
+    'cisco',
+    'forticlient',
+    'fortinet',
+    'hideme',
+    'hidemy',
+    'hideman',
+    'hidester',
+    'lightway',
+  ];
+
+  @override
+  Future<bool> isVpnActive() async {
+    final interfaces = await NetworkInterface.list(
+      includeLoopback: false,
+      type: InternetAddressType.any,
+    );
+
+    if (interfaces.isEmpty) {
+      return false;
+    }
+
+    return interfaces.any(
+      (interface) =>
+          _vpnNames.any((name) => interface.name.toLowerCase().contains(name)),
+    );
+  }
+}
@@ -0,0 +1,29 @@
+import 'dart:html';
+import 'package:fl_query_connectivity_plus_adapter/connection_checker.dart';
+
+mixin ConnectionLookupMixin implements ConnectionLookup {
+  @override
+  Future<bool> doesConnectTo(String address) async {
+    try {
+      final url = address.startsWith("http") || address.startsWith("/")
+          ? address
+          : "https://$address";
+      final request = await HttpRequest.request(
+        url,
+        requestHeaders: {
+          'Cache-Control': 'no-cache',
+          'Pragma': 'no-cache',
+        },
+      );
+
+      return (request.status ?? 0) < 400;
+    } catch (_) {
+      return false;
+    }
+  }
+
+  @override
+  Future<bool> isVpnActive() {
+    return Future.value(false);
+  }
+}