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系统代理设置检测

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This commit is contained in:
老九 2021-09-14 22:02:53 +08:00
parent 91a5ebbcee
commit a74711363b
1 changed files with 38 additions and 3 deletions
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41
FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs
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@ -7,8 +7,9 @@ using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging; using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options; using Microsoft.Extensions.Options;
using System; using System;
using System.Linq;
using System.Net; using System.Net;
using System.Runtime.CompilerServices; using System.Net.Http;
namespace FastGithub namespace FastGithub
{ {
@ -32,14 +33,48 @@ namespace FastGithub
/// <param name="kestrel"></param> /// <param name="kestrel"></param>
public static void ListenHttpProxy(this KestrelServerOptions kestrel) public static void ListenHttpProxy(this KestrelServerOptions kestrel)
{ {
var httpProxyPort = kestrel.ApplicationServices.GetRequiredService<IOptions<FastGithubOptions>>().Value.HttpProxyPort; var options = kestrel.ApplicationServices.GetRequiredService<IOptions<FastGithubOptions>>().Value;
var httpProxyPort = options.HttpProxyPort;
if (LocalMachine.CanListenTcp(httpProxyPort) == false) if (LocalMachine.CanListenTcp(httpProxyPort) == false)
{ {
throw new FastGithubException($"tcp端口{httpProxyPort}已经被其它进程占用，请在配置文件更换{nameof(FastGithubOptions.HttpProxyPort)}为其它端口"); throw new FastGithubException($"tcp端口{httpProxyPort}已经被其它进程占用，请在配置文件更换{nameof(FastGithubOptions.HttpProxyPort)}为其它端口");
} }
var logger = kestrel.GetLogger();
kestrel.Listen(IPAddress.Loopback, httpProxyPort); kestrel.Listen(IPAddress.Loopback, httpProxyPort);
kestrel.GetLogger().LogInformation($"已监听http://127.0.0.1:{httpProxyPort}，http代理启动完成"); logger.LogInformation($"已监听http://127.0.0.1:{httpProxyPort}，http代理启动完成");
if (SystemHasSetHttpProxy() == false)
{
logger.LogWarning($"请设置系统或浏览器代理为：http://127.0.0.1:{httpProxyPort}，或自动代理为http://127.0.0.1:{httpProxyPort}/proxy.pac");
}
bool SystemHasSetHttpProxy()
{
var systemProxy = HttpClient.DefaultProxy;
if (systemProxy == null)
{
return false;
}
var domainPattern = options.DomainConfigs.Keys.FirstOrDefault();
if (domainPattern == null)
{
return true;
}
var destination = new Uri($"https://{domainPattern.Replace('*', 'a')}");
var proxyServer = systemProxy.GetProxy(destination);
if (proxyServer == null)
{
return false;
}
var loopbackProxyUri = new Uri($"http://127.0.0.1:{httpProxyPort}");
var localhostProxyUri = new Uri($"http://localhost:{httpProxyPort}");
return proxyServer == loopbackProxyUri || proxyServer == localhostProxyUri;
}
} }
/// <summary> /// <summary>