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改进端口检查

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This commit is contained in:
ChsBuffer
2020-07-18 17:45:29 +08:00
parent 6fd3aa48a5
commit 635a033434
2 changed files with 73 additions and 132 deletions
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148
Netch/Forms/SettingForm.cs
View File

@@ -2,6 +2,7 @@
using System.Collections.Generic;
using System.Net;
using System.Windows.Forms;
using Netch.Models;
using Netch.Utils;
using TaskScheduler;
@@ -33,6 +34,7 @@ namespace Netch.Forms
dns += ip;
dns += ',';
}
dns = dns.Trim();
TUNTAPDNSTextBox.Text = dns.Substring(0, dns.Length - 1);
}
@@ -120,6 +122,7 @@ namespace Netch.Forms
dns += ip;
dns += ',';
}
dns = dns.Trim();
TUNTAPDNSTextBox.Text = dns.Substring(0, dns.Length - 1);
}
@@ -183,7 +186,10 @@ namespace Netch.Forms
folder.GetTask("Netch Startup");
taskIsExists = true;
}
catch (Exception) { }
catch (Exception)
{
// ignored
}
if (RunAtStartup.Checked)
{
@@ -196,7 +202,7 @@ namespace Netch.Forms
task.Principal.RunLevel = _TASK_RUNLEVEL.TASK_RUNLEVEL_HIGHEST;
task.Triggers.Create(_TASK_TRIGGER_TYPE2.TASK_TRIGGER_LOGON);
var action = (IExecAction)task.Actions.Create(_TASK_ACTION_TYPE.TASK_ACTION_EXEC);
var action = (IExecAction) task.Actions.Create(_TASK_ACTION_TYPE.TASK_ACTION_EXEC);
action.Path = Application.ExecutablePath;
@@ -204,7 +210,7 @@ namespace Netch.Forms
task.Settings.DisallowStartIfOnBatteries = false;
task.Settings.RunOnlyIfIdle = false;
folder.RegisterTaskDefinition("Netch Startup", task, (int)_TASK_CREATION.TASK_CREATE, null, null, _TASK_LOGON_TYPE.TASK_LOGON_INTERACTIVE_TOKEN, "");
folder.RegisterTaskDefinition("Netch Startup", task, (int) _TASK_CREATION.TASK_CREATE, null, null, _TASK_LOGON_TYPE.TASK_LOGON_INTERACTIVE_TOKEN, "");
}
else
{
@@ -212,77 +218,15 @@ namespace Netch.Forms
folder.DeleteTask("Netch Startup", 0);
}
try
{
var Socks5Port = int.Parse(Socks5PortTextBox.Text);
if (Socks5Port > 0 && Socks5Port < 65536)
{
Global.Settings.Socks5LocalPort = Socks5Port;
}
else
{
throw new FormatException();
}
}
catch (FormatException)
{
Socks5PortTextBox.Text = Global.Settings.Socks5LocalPort.ToString();
MessageBoxX.Show(i18N.Translate("Port value illegal. Try again."));
// 端口检查
if (!CheckPortText("Socks5", ref Socks5PortTextBox, ref Global.Settings.Socks5LocalPort))
return;
}
try
{
var HTTPPort = int.Parse(HTTPPortTextBox.Text);
if (HTTPPort > 0 && HTTPPort < 65536)
{
Global.Settings.HTTPLocalPort = HTTPPort;
}
else
{
throw new FormatException();
}
}
catch (FormatException)
{
HTTPPortTextBox.Text = Global.Settings.HTTPLocalPort.ToString();
MessageBoxX.Show(i18N.Translate("Port value illegal. Try again."));
if (!CheckPortText("HTTP", ref HTTPPortTextBox, ref Global.Settings.HTTPLocalPort))
return;
}
try
{
var RedirectorPort = int.Parse(RedirectorTextBox.Text);
if (RedirectorPort > 0 && RedirectorPort < 65536)
{
Global.Settings.RedirectorTCPPort = RedirectorPort;
}
else
{
throw new FormatException();
}
}
catch (FormatException)
{
RedirectorTextBox.Text = Global.Settings.RedirectorTCPPort.ToString();
MessageBoxX.Show(i18N.Translate("Port value illegal. Try again."));
if (!CheckPortText("RedirectorTCP", ref RedirectorTextBox, ref Global.Settings.RedirectorTCPPort, PortType.TCP))
return;
}
if (AllowDevicesCheckBox.Checked)
{
Global.Settings.LocalAddress = "0.0.0.0";
}
else
{
Global.Settings.LocalAddress = "127.0.0.1";
}
Global.Settings.LocalAddress = AllowDevicesCheckBox.Checked ? "0.0.0.0" : "127.0.0.1";
try
{
@@ -310,12 +254,14 @@ namespace Netch.Forms
DNS += ip;
DNS += ',';
}
DNS = DNS.Trim();
TUNTAPDNSTextBox.Text = DNS.Substring(0, DNS.Length - 1);
UseCustomDNSCheckBox.Checked = Global.Settings.TUNTAP.UseCustomDNS;
return;
}
try
{
var ProfileCount = int.Parse(ProfileCount_TextBox.Text);
@@ -336,6 +282,7 @@ namespace Netch.Forms
return;
}
try
{
var STUN_Server = STUN_ServerTextBox.Text;
@@ -359,6 +306,7 @@ namespace Netch.Forms
return;
}
try
{
Global.Settings.StartedTcping = EnableStartedTcping_CheckBox.Checked;
@@ -398,29 +346,47 @@ namespace Netch.Forms
Global.Settings.TUNTAP.ProxyDNS = ProxyDNSCheckBox.Checked;
Global.Settings.TUNTAP.UseFakeDNS = UseFakeDNSCheckBox.Checked;
#region 检查端口是否被占用
if (PortHelper.PortInUse(Global.Settings.Socks5LocalPort))
{
MessageBoxX.Show(i18N.Translate("The Socks5 port is in use. Please reset."));
return;
}
if (PortHelper.PortInUse(Global.Settings.HTTPLocalPort))
{
MessageBoxX.Show(i18N.Translate("The HTTP port is in use. Please reset."));
return;
}
if (PortHelper.PortInUse(Global.Settings.RedirectorTCPPort, PortType.TCP))
{
MessageBoxX.Show(i18N.Translate("The RedirectorTCP port is in use. Please reset."));
return;
}
#endregion
Configuration.Save();
MessageBoxX.Show(i18N.Translate("Saved"));
Close();
}
/// <summary>
///
/// </summary>
/// <param name="portName"></param>
/// <param name="portTextBox"></param>
/// <param name="originPort"></param>
/// <param name="portType"></param>
/// <returns></returns>
/// <exception cref="FormatException"></exception>
private bool CheckPortText(string portName, ref TextBox portTextBox, ref int originPort, PortType portType = PortType.Both)
{
// 端口检查
try
{
var port = int.Parse(portTextBox.Text);
if (port <= 0 || port >= 65536)
{
throw new FormatException();
}
if (PortHelper.PortInUse(port, portType))
{
MessageBoxX.Show(i18N.Translate("The {0} port is in use.", portName));
return false;
}
originPort = port;
}
catch (FormatException)
{
MessageBoxX.Show(i18N.Translate("Port value illegal. Try again."));
return false;
}
return true;
}
}
}
}

57
Netch/Utils/PortHelper.cs
View File

@@ -1,59 +1,34 @@
using System.Net;
using System.Linq;
using System.Net.NetworkInformation;
namespace Netch.Utils
{
class PortHelper
public static class PortHelper
{
/// <summary>
/// 端口是否被使用
/// </summary>
/// <param name="port"></param>
/// <returns></returns>
public static bool PortInUse(int port)
{
return PortInUse(port, PortType.TCP) || PortInUse(port, PortType.UDP);
}
/// <summary>
/// 指定类型的端口是否已经被使用了
/// </summary>
/// <param name="port">端口号</param>
/// <param name="type">端口类型</param>
/// <returns></returns>
public static bool PortInUse(int port, PortType type)
/// <param name="port">端口</param>
/// <param name="type">检查端口类型</param>
/// <returns>是否被占用</returns>
public static bool PortInUse(int port, PortType type = PortType.Both)
{
bool flag = false;
IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
IPEndPoint[] ipendpoints = null;
if (type == PortType.TCP)
{
ipendpoints = properties.GetActiveTcpListeners();
}
else
{
ipendpoints = properties.GetActiveUdpListeners();
}
foreach (IPEndPoint ipendpoint in ipendpoints)
{
if (ipendpoint.Port == port)
{
flag = true;
break;
}
}
ipendpoints = null;
properties = null;
return flag;
var netInfo = IPGlobalProperties.GetIPGlobalProperties();
var tcpResult = type != PortType.UDP && netInfo.GetActiveTcpListeners().Any(ipEndPoint => ipEndPoint.Port == port);
var udpResult = type != PortType.TCP && netInfo.GetActiveUdpListeners().Any(ipEndPoint => ipEndPoint.Port == port);
return tcpResult || udpResult;
}
}
/// <summary>
/// 端口类型
/// 检查端口类型
/// </summary>
enum PortType
public enum PortType
{
TCP,
UDP
UDP,
Both
}
}