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63 lines
2.2 KiB
Dart
63 lines
2.2 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'base/platform.dart';
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import 'doctor_validator.dart';
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/// A validator that displays configured HTTP_PROXY environment variables.
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///
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/// if the `HTTP_PROXY` environment variable is non-empty, the contents are
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/// validated along with `NO_PROXY`.
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class ProxyValidator extends DoctorValidator {
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ProxyValidator({
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required Platform platform,
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}) : shouldShow = _getEnv('HTTP_PROXY', platform).isNotEmpty,
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_httpProxy = _getEnv('HTTP_PROXY', platform),
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_noProxy = _getEnv('NO_PROXY', platform),
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super('Proxy Configuration');
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final bool shouldShow;
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final String _httpProxy;
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final String _noProxy;
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/// Gets a trimmed, non-null environment variable. If the variable is not set
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/// an empty string will be returned. Checks for the lowercase version of the
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/// environment variable first, then uppercase to match Dart's HTTP implementation.
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static String _getEnv(String key, Platform platform) =>
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platform.environment[key.toLowerCase()]?.trim() ??
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platform.environment[key.toUpperCase()]?.trim() ??
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'';
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@override
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Future<ValidationResult> validate() async {
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if (_httpProxy.isEmpty) {
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return const ValidationResult(
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ValidationType.installed, <ValidationMessage>[]);
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}
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final List<ValidationMessage> messages = <ValidationMessage>[
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const ValidationMessage('HTTP_PROXY is set'),
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if (_noProxy.isEmpty)
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const ValidationMessage.hint('NO_PROXY is not set')
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else
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...<ValidationMessage>[
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ValidationMessage('NO_PROXY is $_noProxy'),
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for (String host in const <String>['127.0.0.1', 'localhost'])
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if (_noProxy.contains(host))
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ValidationMessage('NO_PROXY contains $host')
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else
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ValidationMessage.hint('NO_PROXY does not contain $host'),
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],
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];
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final bool hasIssues = messages.any(
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(ValidationMessage msg) => msg.isHint || msg.isError);
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return ValidationResult(
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hasIssues ? ValidationType.partial : ValidationType.installed,
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messages,
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);
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}
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}
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