stack_wallet/lib/utilities/test_monero_node_connection.dart
2022-11-08 11:41:12 -06:00

121 lines
3.1 KiB
Dart

import 'dart:convert';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:stackwallet/utilities/format.dart';
import 'package:stackwallet/utilities/logger.dart';
import 'package:stackwallet/widgets/desktop/primary_button.dart';
import 'package:stackwallet/widgets/desktop/secondary_button.dart';
import 'package:stackwallet/widgets/stack_dialog.dart';
class MoneroNodeConnectionResponse {
final X509Certificate? cert;
final String? url;
final int? port;
final bool success;
MoneroNodeConnectionResponse(this.cert, this.url, this.port, this.success);
}
Future<MoneroNodeConnectionResponse> testMoneroNodeConnection(
Uri uri,
bool allowBadX509Certificate,
) async {
final client = HttpClient();
MoneroNodeConnectionResponse? badCertResponse;
try {
client.badCertificateCallback = (cert, url, port) {
if (allowBadX509Certificate) {
return true;
}
if (badCertResponse == null) {
badCertResponse = MoneroNodeConnectionResponse(cert, url, port, false);
} else {
return false;
}
return false;
};
final request = await client.postUrl(uri);
final body = utf8.encode(
jsonEncode({
"jsonrpc": "2.0",
"id": "0",
"method": "get_info",
}),
);
request.headers.add(
'Content-Length',
body.length.toString(),
preserveHeaderCase: true,
);
request.headers.set(
'Content-Type',
'application/json',
preserveHeaderCase: true,
);
request.add(body);
final response = await request.close();
final result = await response.transform(utf8.decoder).join();
// TODO: json decoded without error so assume connection exists?
// or we can check for certain values in the response to decide
return MoneroNodeConnectionResponse(null, null, null, true);
} catch (e, s) {
if (badCertResponse != null) {
return badCertResponse!;
} else {
Logging.instance.log("$e\n$s", level: LogLevel.Warning);
return MoneroNodeConnectionResponse(null, null, null, false);
}
} finally {
client.close(force: true);
}
}
Future<bool> showBadX509CertificateDialog(
X509Certificate cert,
String url,
int port,
BuildContext context,
) async {
final chars = Format.uint8listToString(cert.sha1)
.toUpperCase()
.characters
.toList(growable: false);
String sha1 = chars.sublist(0, 2).join();
for (int i = 2; i < chars.length; i += 2) {
sha1 += ":${chars.sublist(i, i + 2).join()}";
}
final result = await showDialog<bool>(
context: context,
barrierDismissible: false,
builder: (context) {
return StackDialog(
title: "Untrusted X509Certificate",
message: "SHA1:\n$sha1",
leftButton: SecondaryButton(
label: "Cancel",
onPressed: () {
Navigator.of(context).pop(false);
},
),
rightButton: PrimaryButton(
label: "Trust",
onPressed: () {
Navigator.of(context).pop(true);
},
),
);
},
);
return result ?? false;
}