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New: Use native .NET socks proxy

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(cherry picked from commit d93110336fea31565129b356c90043761f8c2c5b)
This commit is contained in:
ta264
2021-11-22 21:14:28 +00:00
parent e54d4765dd
commit 8b8f79d6c3
2 changed files with 25 additions and 47 deletions
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src/NzbDrone.Common/Http/Proxy/ManagedWebProxyFactory.cs
+25 -46
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@@ -1,9 +1,5 @@
using System;
using System.Linq;
using System;
using System.Net;
using System.Net.Sockets;
using com.LandonKey.SocksWebProxy;
using com.LandonKey.SocksWebProxy.Proxy;
using NzbDrone.Common.Cache;
using NzbDrone.Common.Extensions;
@@ -33,54 +29,37 @@ namespace NzbDrone.Common.Http.Proxy
}
private IWebProxy CreateWebProxy(HttpProxySettings proxySettings)
{
var uri = GetProxyUri(proxySettings);
if (uri == null)
{
return null;
}
if (proxySettings.Username.IsNotNullOrWhiteSpace() && proxySettings.Password.IsNotNullOrWhiteSpace())
{
return new WebProxy(uri, proxySettings.BypassLocalAddress, proxySettings.BypassListAsArray, new NetworkCredential(proxySettings.Username, proxySettings.Password));
}
else
{
return new WebProxy(uri, proxySettings.BypassLocalAddress, proxySettings.BypassListAsArray);
}
}
private Uri GetProxyUri(HttpProxySettings proxySettings)
{
switch (proxySettings.Type)
{
case ProxyType.Http:
if (proxySettings.Username.IsNotNullOrWhiteSpace() && proxySettings.Password.IsNotNullOrWhiteSpace())
{
return new WebProxy(proxySettings.Host + ":" + proxySettings.Port, proxySettings.BypassLocalAddress, proxySettings.BypassListAsArray, new NetworkCredential(proxySettings.Username, proxySettings.Password));
}
else
{
return new WebProxy(proxySettings.Host + ":" + proxySettings.Port, proxySettings.BypassLocalAddress, proxySettings.BypassListAsArray);
}
return new Uri("http://" + proxySettings.Host + ":" + proxySettings.Port);
case ProxyType.Socks4:
return new SocksWebProxy(new ProxyConfig(IPAddress.Loopback, GetNextFreePort(), GetProxyIpAddress(proxySettings.Host), proxySettings.Port, ProxyConfig.SocksVersion.Four, proxySettings.Username, proxySettings.Password), false);
return new Uri("socks4://" + proxySettings.Host + ":" + proxySettings.Port);
case ProxyType.Socks5:
return new SocksWebProxy(new ProxyConfig(IPAddress.Loopback, GetNextFreePort(), GetProxyIpAddress(proxySettings.Host), proxySettings.Port, ProxyConfig.SocksVersion.Five, proxySettings.Username, proxySettings.Password), false);
return new Uri("socks5://" + proxySettings.Host + ":" + proxySettings.Port);
default:
return null;
}
return null;
}
private static IPAddress GetProxyIpAddress(string host)
{
IPAddress ipAddress;
if (!IPAddress.TryParse(host, out ipAddress))
{
try
{
ipAddress = Dns.GetHostEntry(host).AddressList.OrderByDescending(a => a.AddressFamily == AddressFamily.InterNetwork).First();
}
catch (Exception e)
{
throw new InvalidOperationException(string.Format("Unable to resolve proxy hostname '{0}' to a valid IP address.", host), e);
}
}
return ipAddress;
}
private static int GetNextFreePort()
{
var listener = new TcpListener(IPAddress.Loopback, 0);
listener.Start();
var port = ((IPEndPoint)listener.LocalEndpoint).Port;
listener.Stop();
return port;
}
}
}