From 908d81be113dd15c32c34d02e6a587ac94e7fbe1 Mon Sep 17 00:00:00 2001 From: xljiulang <366193849@qq.com> Date: Sat, 24 Jul 2021 01:14:34 +0800 Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0dnscrypt-proxy=E5=88=9D?= =?UTF-8?q?=E5=A7=8B=E5=8C=96=E7=AD=89=E5=BE=85?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- FastGithub.Dns/FastGithub.Dns.csproj | 11 ++-- .../DnscryptProxyHostedService.cs | 37 ++++++++++++-- .../DnscryptProxyService.cs | 50 ++++++++++++++++++- .../FastGithub.DnscryptProxy.csproj | 6 +-- .../KestrelServerOptionsExtensions.cs | 2 - FastGithub.Upgrade/UpgradeHostedService.cs | 21 +++----- 6 files changed, 97 insertions(+), 30 deletions(-) diff --git a/FastGithub.Dns/FastGithub.Dns.csproj b/FastGithub.Dns/FastGithub.Dns.csproj index 65ae28c..2ebcc65 100644 --- a/FastGithub.Dns/FastGithub.Dns.csproj +++ b/FastGithub.Dns/FastGithub.Dns.csproj @@ -3,9 +3,14 @@ net5.0 true - - + + - + + + + + + diff --git a/FastGithub.DnscryptProxy/DnscryptProxyHostedService.cs b/FastGithub.DnscryptProxy/DnscryptProxyHostedService.cs index 977425b..4661748 100644 --- a/FastGithub.DnscryptProxy/DnscryptProxyHostedService.cs +++ b/FastGithub.DnscryptProxy/DnscryptProxyHostedService.cs @@ -13,6 +13,7 @@ namespace FastGithub.DnscryptProxy { private readonly DnscryptProxyService dnscryptProxyService; private readonly ILogger logger; + private readonly TimeSpan dnsOKTimeout = TimeSpan.FromSeconds(60d); /// /// DnscryptProxy后台服务 @@ -40,15 +41,16 @@ namespace FastGithub.DnscryptProxy this.logger.LogInformation($"{this.dnscryptProxyService}启动成功"); // 监听意外退出 - var service = this.dnscryptProxyService.Process; - if (service == null) + var process = this.dnscryptProxyService.Process; + if (process == null) { this.OnProcessExit(null, new EventArgs()); } else { - service.EnableRaisingEvents = true; - service.Exited += this.OnProcessExit; + process.EnableRaisingEvents = true; + process.Exited += this.OnProcessExit; + await this.WaitForDnsOKAsync(cancellationToken); } } catch (Exception ex) @@ -57,6 +59,31 @@ namespace FastGithub.DnscryptProxy } } + /// + /// 等待dns服务初始化 + /// + /// + /// + private async Task WaitForDnsOKAsync(CancellationToken cancellationToken) + { + this.logger.LogInformation($"{this.dnscryptProxyService}正在初始化"); + using var timeoutTokenSource = new CancellationTokenSource(this.dnsOKTimeout); + + try + { + using var linkeTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, timeoutTokenSource.Token); + await this.dnscryptProxyService.WaitForDnsOKAsync(linkeTokenSource.Token); + this.logger.LogInformation($"{this.dnscryptProxyService}初始化完成"); + } + catch (Exception) + { + if (timeoutTokenSource.IsCancellationRequested) + { + this.logger.LogWarning($"{this.dnscryptProxyService}在{this.dnsOKTimeout.TotalSeconds}秒内未能初始化完成"); + } + } + } + /// /// 进程退出时 /// @@ -66,7 +93,7 @@ namespace FastGithub.DnscryptProxy { if (this.dnscryptProxyService.ControllState != ControllState.Stopped) { - this.logger.LogCritical($"{this.dnscryptProxyService}已停止运行，{nameof(FastGithub)}将无法解析域名。你可以把配置文件的{nameof(FastGithubOptions.PureDns)}修改为其它可用的DNS以临时使用。"); + this.logger.LogCritical($"{this.dnscryptProxyService}已意外停止，{nameof(FastGithub)}将无法解析域名。你可以把配置文件的{nameof(FastGithubOptions.PureDns)}修改为其它可用的DNS以临时使用。"); } } diff --git a/FastGithub.DnscryptProxy/DnscryptProxyService.cs b/FastGithub.DnscryptProxy/DnscryptProxyService.cs index b45229b..47b93e6 100644 --- a/FastGithub.DnscryptProxy/DnscryptProxyService.cs +++ b/FastGithub.DnscryptProxy/DnscryptProxyService.cs @@ -1,4 +1,6 @@ -using System; +using DNS.Client; +using DNS.Protocol; +using System; using System.Diagnostics; using System.Linq; using System.Threading; @@ -12,6 +14,7 @@ namespace FastGithub.DnscryptProxy sealed class DnscryptProxyService { private const string name = "dnscrypt-proxy"; + private const string testDomain = "api.github.com"; private readonly FastGithubConfig fastGithubConfig; /// @@ -62,6 +65,51 @@ namespace FastGithub.DnscryptProxy } } + /// + /// 等待dns服务OK + /// + /// + /// + public async Task WaitForDnsOKAsync(CancellationToken cancellationToken) + { + var process = this.Process; + if (process == null || process.HasExited || this.ControllState != ControllState.Started) + { + return; + } + + using var processExitTokenSource = new CancellationTokenSource(); + process.EnableRaisingEvents = true; + process.Exited += (s, e) => processExitTokenSource.Cancel(); + + using var linkedTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, processExitTokenSource.Token); + await this.WaitForDnsOKCoreAsync(linkedTokenSource.Token); + } + + /// + /// 等待dns服务OK + /// + /// + /// + private async Task WaitForDnsOKCoreAsync(CancellationToken cancellationToken) + { + while (true) + { + try + { + using var timeoutTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(1d)); + using var linkedTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, timeoutTokenSource.Token); + var dnsClient = new DnsClient(this.fastGithubConfig.PureDns); + await dnsClient.Lookup(testDomain, RecordType.A, linkedTokenSource.Token); + break; + } + catch (Exception) + { + cancellationToken.ThrowIfCancellationRequested(); + } + } + } + /// /// 停止dnscrypt-proxy /// diff --git a/FastGithub.DnscryptProxy/FastGithub.DnscryptProxy.csproj b/FastGithub.DnscryptProxy/FastGithub.DnscryptProxy.csproj index c8b98b2..f4f3881 100644 --- a/FastGithub.DnscryptProxy/FastGithub.DnscryptProxy.csproj +++ b/FastGithub.DnscryptProxy/FastGithub.DnscryptProxy.csproj @@ -5,11 +5,9 @@ + - - - - + diff --git a/FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs b/FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs index 67a4c5e..aab7947 100644 --- a/FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs +++ b/FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs @@ -47,8 +47,6 @@ namespace FastGithub listen.UseHttps(https => https.ServerCertificateSelector = (ctx, domain) => GetDomainCert(domain, caPublicCerPath, caPrivateKeyPath))); - - logger.LogInformation("https反向代理服务启动成功"); } /// diff --git a/FastGithub.Upgrade/UpgradeHostedService.cs b/FastGithub.Upgrade/UpgradeHostedService.cs index ad97f32..35fa681 100644 --- a/FastGithub.Upgrade/UpgradeHostedService.cs +++ b/FastGithub.Upgrade/UpgradeHostedService.cs @@ -33,22 +33,13 @@ namespace FastGithub.Upgrade /// protected override async Task ExecuteAsync(CancellationToken stoppingToken) { - var maxTryCount = 5; - for (var i = 1; i <= maxTryCount; i++) + try { - try - { - await Task.Delay(TimeSpan.FromSeconds(2d), stoppingToken); - await this.upgradeService.UpgradeAsync(stoppingToken); - break; - } - catch (Exception ex) - { - if (i == maxTryCount) - { - this.logger.LogWarning($"升级失败：{ex.Message}"); - } - } + await this.upgradeService.UpgradeAsync(stoppingToken); + } + catch (Exception ex) + { + this.logger.LogWarning($"升级失败：{ex.Message}"); } } }