1
0
mirror of https://github.com/proxysu/ProxySU.git synced 2024-11-22 21:26:09 +03:00
ProxySU/ProxySuper.Core/Services/ServiceBase.cs
2021-08-25 11:12:47 +08:00

824 lines
26 KiB
C#
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

using MvvmCross;
using MvvmCross.Navigation;
using ProxySuper.Core.Helpers;
using ProxySuper.Core.Models;
using ProxySuper.Core.Models.Hosts;
using ProxySuper.Core.Models.Projects;
using Renci.SshNet;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Navigation;
namespace ProxySuper.Core.Services
{
public enum ArchType
{
x86,
arm
}
public enum CmdType
{
None,
Yum,
Apt,
Dnf
}
public abstract class ServiceBase<TSettings> where TSettings : IProjectSettings
{
private Host _host;
private SshClient _sshClient;
private ProjectProgress _progress;
public ServiceBase(Host host, TSettings settings)
{
_host = host;
Settings = settings;
var connection = CreateConnectionInfo();
if (connection != null)
{
_sshClient = new SshClient(connection);
}
_progress = new ProjectProgress();
ArchType = ArchType.x86;
CmdType = CmdType.None;
IPv4 = string.Empty;
IPv6 = string.Empty;
IsOnlyIPv6 = false;
NavigationService = Mvx.IoCProvider.Resolve<IMvxNavigationService>();
}
public string RunCmd(string command)
{
AppendCommand(command);
string result;
if (_sshClient.IsConnected)
{
result = _sshClient.CreateCommand(command).Execute();
}
else
{
result = "连接已断开";
}
AppendCommand(result);
return result;
}
public ProjectProgress Progress => _progress;
public TSettings Settings { get; set; }
public ArchType ArchType { get; set; }
public CmdType CmdType { get; set; }
public string IPv4 { get; set; }
public string IPv6 { get; set; }
public bool IsOnlyIPv6 { get; set; }
public IMvxNavigationService NavigationService { get; set; }
#region
public void Connect()
{
Task.Run(() =>
{
if (_sshClient == null)
{
MessageBox.Show("无法建立连接,连接参数有误!");
return;
}
if (_sshClient.IsConnected == false)
{
Progress.Desc = ("正在与服务器建立连接");
try
{
_sshClient.Connect();
Progress.Desc = ("建立连接成功");
}
catch (Exception e)
{
Progress.Desc = ("连接失败," + e.Message);
}
}
});
}
public void Disconnect()
{
Task.Run(() =>
{
_sshClient?.Disconnect();
});
}
protected void WriteToFile(string text, string path)
{
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(text)))
{
using (var sftp = new SftpClient(_sshClient.ConnectionInfo))
{
try
{
sftp.Connect();
sftp.UploadFile(stream, path, true);
}
catch (Exception ex)
{
throw ex;
}
finally
{
sftp.Disconnect();
}
}
}
}
protected bool FileExists(string path)
{
var cmdStr = $"if [[ -f {path} ]];then echo '1';else echo '0'; fi";
var cmd = RunCmd(cmdStr);
return cmd.Trim() == "1";
}
protected void SyncTimeDiff()
{
RunCmd("rm -f /etc/localtime");
RunCmd("ln -s /usr/share/zoneinfo/UTC /etc/localtime");
var result = RunCmd("date +%s");
var vpsSeconds = Convert.ToInt64(result);
var localSeconds = (int)(DateTime.Now.ToUniversalTime() - DateTime.Parse("1970-01-01")).TotalSeconds;
if (Math.Abs(vpsSeconds - localSeconds) >= 90)
{
// 同步本地时间
var netUtcTime = DateTimeUtils.GetUTCTime();
DateTimeUtils.SetDate(netUtcTime.ToLocalTime());
// 同步VPS时间
var utcTS = DateTimeUtils.GetUTCTime() - new DateTime(1970, 1, 1, 0, 0, 0, 0);
long timeStampVPS = Convert.ToInt64(utcTS.TotalSeconds);
RunCmd($"date --set=\"$(date \"+%Y-%m-%d %H:%M:%S\" -d @{timeStampVPS.ToString()})\"");
}
}
protected void ValidateDomain()
{
var domainIP = RunCmd($"ping \"{Settings.Domain}\" -c 1" + @" | sed '1{s/[^(]*(//;s/).*//;q}'")
.Trim('\r', '\n');
if (IsOnlyIPv6)
{
Progress.Desc = ($"本机IP({IPv6})");
if (IPv6 != domainIP)
{
throw new Exception("域名解析地址与服务器IP不匹配");
}
}
else
{
Progress.Desc = ($"本机IP({IPv4})");
Progress.Desc = ($"域名IP({domainIP})");
if (IPv4 != domainIP)
{
throw new Exception("域名解析地址与服务器IP不匹配");
}
}
}
protected void EnableBBR()
{
Progress.Desc = ("检查系统是否满足启动BBR条件");
var osVersion = RunCmd("uname -r");
var canInstallBBR = CheckKernelVersionBBR(osVersion.Split('-')[0]);
var bbrInfo = RunCmd("sysctl net.ipv4.tcp_congestion_control | grep bbr");
var installed = bbrInfo.Contains("bbr");
if (canInstallBBR && !installed)
{
RunCmd(@"bash -c 'echo ""net.core.default_qdisc=fq"" >> /etc/sysctl.conf'");
RunCmd(@"bash -c 'echo ""net.ipv4.tcp_congestion_control=bbr"" >> /etc/sysctl.conf'");
RunCmd(@"sysctl -p");
if (IsOnlyIPv6)
{
RemoveNat64();
}
Progress.Desc = ("启动BBR成功");
}
if (!canInstallBBR)
{
Progress.Desc = ("系统不满足启用BBR条件启动失败。");
}
}
/// <summary>
/// 安装证书
/// </summary>
/// <param name="certPath"></param>
/// <param name="keyPath"></param>
protected void InstallCert(string dirPath, string certName, string keyName)
{
string certPath = dirPath + "/" + certName;
string keyPath = dirPath + "/" + keyName;
Progress.Desc = ("安装Acme软件");
#region Acme
// 安装依赖
RunCmd(GetInstallCmd("socat"));
// 解决搬瓦工CentOS缺少问题
RunCmd(GetInstallCmd("automake autoconf libtool"));
// 安装Acme
var result = RunCmd($"curl https://get.acme.sh yes | sh");
if (!result.Contains("nstall success"))
{
throw new Exception("安装 Acme 失败,请联系开发者!");
}
RunCmd("alias acme.sh=~/.acme.sh/acme.sh");
#endregion
#region
Progress.Desc = ("正在申请证书");
// 申请证书
var cmd = $"/root/.acme.sh/acme.sh --force --debug --issue --standalone -d {Settings.Domain} {(IsOnlyIPv6 ? "--listen-v6" : "")} --pre-hook \"systemctl stop caddy\" --post-hook \"systemctl start caddy\" --server letsencrypt";
result = RunCmd(cmd);
if (result.Contains("success"))
{
Progress.Desc = ("申请证书成功");
}
else
{
Progress.Desc = ("申请证书失败,如果申请次数过多请更换二级域名,或联系开发者!");
throw new Exception("申请证书失败,如果申请次数过多请更换二级域名,或联系开发者!");
}
#endregion
// 安装证书
Progress.Desc = ("安装TLS证书");
RunCmd($"mkdir -p {dirPath}");
RunCmd($"/root/.acme.sh/acme.sh --installcert -d {Settings.Domain} --certpath {certPath} --keypath {keyPath} --capath {certPath}");
result = RunCmd($@"if [ ! -f ""{keyPath}"" ]; then echo ""0""; else echo ""1""; fi | head -n 1");
if (result.Contains("1"))
{
Progress.Desc = ("安装证书成功");
}
else
{
Progress.Desc = ("安装证书失败,请联系开发者!");
throw new Exception("安装证书失败,请联系开发者!");
}
RunCmd($"chmod 755 {dirPath}");
}
protected void UploadFile(Stream stream, string path)
{
using (var sftp = new SftpClient(_sshClient.ConnectionInfo))
{
sftp.Connect();
sftp.UploadFile(stream, path, true);
sftp.Disconnect();
}
}
public void EnsureRootUser()
{
// 禁止一些可能产生的干扰信息
RunCmd(@"sed -i 's/echo/#echo/g' ~/.bashrc");
RunCmd(@"sed -i 's/echo/#echo/g' ~/.profile");
var result = RunCmd("id -u");
if (!result.Equals("0\n"))
{
throw new Exception("ProxySU需要使用Root用户进行安装");
}
}
public void UninstallCaddy()
{
Progress.Desc = "关闭Caddy服务";
RunCmd("systemctl stop caddy");
RunCmd("systemctl disable caddy");
Progress.Desc = "彻底删除Caddy文件";
RunCmd("rm -rf /etc/systemd/system/caddy.service");
RunCmd("rm -rf /usr/bin/caddy");
RunCmd("rm -rf /usr/share/caddy");
RunCmd("rm -rf /etc/caddy");
}
public void EnsureSystemEnv()
{
// cpu架构
Progress.Desc = ("检测CPU架构");
EnsureCPU();
// 安装命令类型
Progress.Desc = ("检测系统安装命令");
EnsureCmdType();
// systemctl
Progress.Desc = ("检测Systemctl");
EnsureSystemctl();
// SELinux
Progress.Desc = ("检测SELinux");
ConfigSELinux();
}
public void InstallSystemTools()
{
Progress.Desc = ("安装sudo工具");
InstallSoftware("sudo");
Progress.Desc = ("安装curl工具");
InstallSoftware("curl");
Progress.Desc = ("安装wget工具");
InstallSoftware("wget");
Progress.Desc = ("安装ping工具");
InstallSoftware("ping");
Progress.Desc = ("安装unzip工具");
InstallSoftware("unzip");
Progress.Desc = ("安装cron工具");
InstallSoftware("cron");
Progress.Desc = ("安装lsof工具");
InstallSoftware("lsof");
Progress.Desc = ("安装systemd工具");
InstallSoftware("systemd");
}
public void ConfigFirewalld()
{
Progress.Desc = ("释放被占用的端口");
Settings.FreePorts.ForEach(port => SetPortFree(port));
Progress.Desc = ("开放需要的端口");
OpenPort(Settings.FreePorts.ToArray());
}
public void ResetFirewalld()
{
ClosePort(Settings.FreePorts.ToArray());
}
public void EnsureNetwork()
{
string cmd;
Progress.Desc = ("检测IPv4");
cmd = RunCmd(@"curl -s https://api.ip.sb/ip --ipv4 --max-time 8");
IPv4 = cmd.TrimEnd('\r', '\n');
Progress.Desc = ($"IPv4地址为{IPv4}");
if (!string.IsNullOrEmpty(IPv4))
{
IsOnlyIPv6 = false;
}
else
{
Progress.Desc = ("检测IPv6");
cmd = RunCmd(@"curl -s https://api.ip.sb/ip --ipv6 --max-time 8");
IPv6 = cmd.TrimEnd('\r', '\n');
Progress.Desc = ($"IPv6地址为{IPv6}");
IsOnlyIPv6 = true;
SetNat64();
}
if (string.IsNullOrEmpty(IPv4) && string.IsNullOrEmpty(IPv6))
{
throw new Exception("未检测到服务器公网IP请检查网络或重试。");
}
}
public void InstallCaddy()
{
RunCmd("rm -rf caddy.tar.gz");
RunCmd("rm -rf /etc/caddy");
RunCmd("rm -rf /usr/share/caddy");
var url = "https://github.com/caddyserver/caddy/releases/download/v2.4.3/caddy_2.4.3_linux_amd64.tar.gz";
if (ArchType == ArchType.arm)
{
url = "https://github.com/caddyserver/caddy/releases/download/v2.4.3/caddy_2.4.3_linux_armv7.tar.gz";
}
RunCmd($"wget -O caddy.tar.gz {url}");
RunCmd("mkdir /etc/caddy");
RunCmd("tar -zxvf caddy.tar.gz -C /etc/caddy");
RunCmd("cp -rf /etc/caddy/caddy /usr/bin");
WriteToFile(Caddy.DefaultCaddyFile, "/etc/caddy/Caddyfile");
WriteToFile(Caddy.Service, "/etc/systemd/system/caddy.service");
RunCmd("systemctl daemon-reload");
RunCmd("systemctl enable caddy");
RunCmd("mkdir /usr/share/caddy");
RunCmd("chmod 775 /usr/share/caddy");
if (!FileExists("/usr/bin/caddy"))
{
throw new Exception("Caddy服务器安装失败请联系开发者");
}
}
#endregion
#region System环境
private void EnsureCPU()
{
var result = RunCmd("uname -m");
if (result.Contains("x86"))
{
ArchType = ArchType.x86;
}
else if (result.Contains("arm") || result.Contains("arch"))
{
ArchType = ArchType.arm;
}
}
private void EnsureCmdType()
{
var result = string.Empty;
if (CmdType == CmdType.None)
{
result = RunCmd("command -v apt");
if (!string.IsNullOrEmpty(result))
{
CmdType = CmdType.Apt;
}
}
if (CmdType == CmdType.None)
{
result = RunCmd("command -v dnf");
if (!string.IsNullOrEmpty(result))
{
CmdType = CmdType.Dnf;
}
}
if (CmdType == CmdType.None)
{
result = RunCmd("command -v yum");
if (!string.IsNullOrEmpty(result))
{
CmdType = CmdType.Yum;
}
}
if (CmdType == CmdType.None)
{
throw new Exception("未检测到正确的系统安装命令请尝试使用ProxySU推荐的系统版本安装");
}
}
private void EnsureSystemctl()
{
var result = RunCmd("command -v systemctl");
if (string.IsNullOrEmpty(result))
{
throw new Exception("系统缺少 systemctl 组件请尝试使用ProxySU推荐的系统版本安装");
}
}
private void ConfigSELinux()
{
// SELinux
var result = RunCmd("command -v getenforce");
var isSELinux = !string.IsNullOrEmpty(result);
// 判断是否启用了SELinux,如果启用了并且工作在Enforcing模式下则改为Permissive模式
if (isSELinux)
{
result = RunCmd("getenforce");
// 检测到系统启用SELinux且工作在严格模式下需改为宽松模式
if (result.Contains("Enforcing"))
{
RunCmd("setenforce 0");
RunCmd(@"sed -i 's/SELINUX=enforcing/SELINUX=permissive/' /etc/selinux/config");
}
}
}
#endregion
#region
protected void SetNat64()
{
var dns64List = FilterFastestIP();
if (dns64List.Count == 0)
{
throw new Exception("未找到有效的Nat64网关");
}
var exists = FileExists("/etc/resolv.conf.proxysu");
if (!exists)
{
var cmdStr = @"mv /etc/resolv.conf /etc/resolv.conf.proxysu";
RunCmd(cmdStr);
}
foreach (var gateip in dns64List)
{
RunCmd($"echo \"nameserver {gateip}\" > /etc/resolv.conf");
}
}
protected void RemoveNat64()
{
RunCmd("rm /etc/resolv.conf");
RunCmd("mv /etc/resolv.conf.proxysu /etc/resolv.conf");
}
protected void AppendCommand(string command)
{
if (!command.EndsWith("\n"))
{
command += "\n";
}
Progress.Logs += command;
}
private List<string> FilterFastestIP()
{
string[] gateNat64 = {
"2a01:4f9:c010:3f02::1",
"2001:67c:2b0::4",
"2001:67c:2b0::6",
"2a09:11c0:f1:bbf0::70",
"2a01:4f8:c2c:123f::1",
"2001:67c:27e4:15::6411",
"2001:67c:27e4::64",
"2001:67c:27e4:15::64",
"2001:67c:27e4::60",
"2a00:1098:2b::1",
"2a03:7900:2:0:31:3:104:161",
"2a00:1098:2c::1",
"2a09:11c0:100::53",
};
Dictionary<string, float> dns64List = new Dictionary<string, float>();
foreach (var gateip in gateNat64)
{
var cmdStr = $"ping6 -c4 {gateip} | grep avg | awk '{{print $4}}'|cut -d/ -f2";
var cmd = RunCmd(cmdStr);
if (!string.IsNullOrEmpty(cmd))
{
if (float.TryParse(cmd, out float delay))
{
dns64List.Add(gateip, delay);
}
}
}
return dns64List.Keys.ToList();
}
private bool CheckKernelVersionBBR(string kernelVer)
{
string[] linuxKernelCompared = kernelVer.Split('.');
if (int.Parse(linuxKernelCompared[0]) > 4)
{
return true;
}
else if (int.Parse(linuxKernelCompared[0]) < 4)
{
return false;
}
else if (int.Parse(linuxKernelCompared[0]) == 4)
{
if (int.Parse(linuxKernelCompared[1]) >= 9)
{
return true;
}
else if (int.Parse(linuxKernelCompared[1]) < 9)
{
return false;
}
}
return false;
}
private void SetPortFree(int port)
{
string result = RunCmd($"lsof -n -P -i :{port} | grep LISTEN");
if (!string.IsNullOrEmpty(result))
{
string[] process = result.Split(' ');
RunCmd($"systemctl stop {process[0]}");
RunCmd($"systemctl disable {process[0]}");
RunCmd($"pkill {process[0]}");
}
}
private void OpenPort(params int[] portList)
{
string cmd;
cmd = RunCmd("command -v firewall-cmd");
if (!string.IsNullOrEmpty(cmd))
{
//有很奇怪的vps主机在firewalld未运行时端口是关闭的无法访问。所以要先启动firewalld
//用于保证acme.sh申请证书成功
cmd = RunCmd("firewall-cmd --state");
if (cmd.Trim() != "running")
{
RunCmd("systemctl restart firewalld");
}
// 保持 ssh 端口开放
RunCmd($"firewall-cmd --add-port={_host.Port}/tcp --permanent");
foreach (var port in portList)
{
RunCmd($"firewall-cmd --add-port={port}/tcp --permanent");
RunCmd($"firewall-cmd --add-port={port}/udp --permanent");
}
RunCmd("yes | firewall-cmd --reload");
}
else
{
cmd = RunCmd("command -v ufw");
if (string.IsNullOrEmpty(cmd))
{
RunCmd(GetInstallCmd("ufw"));
RunCmd("echo y | ufw enable");
}
// 保持 ssh 端口开放
RunCmd($"ufw allow {_host.Port}/tcp");
foreach (var port in portList)
{
RunCmd($"ufw allow {port}/tcp");
RunCmd($"ufw allow {port}/udp");
}
RunCmd("yes | ufw reload");
}
}
private void ClosePort(params int[] portList)
{
string cmd;
cmd = RunCmd("command -v firewall-cmd");
if (!string.IsNullOrEmpty(cmd))
{
//有很奇怪的vps主机在firewalld未运行时端口是关闭的无法访问。所以要先启动firewalld
//用于保证acme.sh申请证书成功
cmd = RunCmd("firewall-cmd --state");
if (cmd.Trim() != "running")
{
RunCmd("systemctl restart firewalld");
}
foreach (var port in portList)
{
RunCmd($"firewall-cmd --remove-port={port}/tcp --permanent");
RunCmd($"firewall-cmd --remove-port={port}/udp --permanent");
}
RunCmd("yes | firewall-cmd --reload");
}
else
{
cmd = RunCmd("command -v ufw");
if (!string.IsNullOrEmpty(cmd))
{
foreach (var port in portList)
{
RunCmd($"ufw delete allow {port}/tcp");
RunCmd($"ufw delete allow {port}/udp");
}
RunCmd("yes | ufw reload");
}
}
}
private void InstallSoftware(string software)
{
var result = RunCmd($"command -v {software}");
if (string.IsNullOrEmpty(result))
{
RunCmd(GetInstallCmd(software));
}
}
private string GetInstallCmd(string soft)
{
if (CmdType == CmdType.Apt)
{
return $"apt install -y {soft}";
}
else if (CmdType == CmdType.Yum)
{
return $"yum install -y {soft}";
}
else
{
return $"dnf install -y {soft}";
}
}
private ConnectionInfo CreateConnectionInfo()
{
try
{
var authMethods = new List<AuthenticationMethod>();
if (_host.SecretType == LoginSecretType.Password)
{
authMethods.Add(new PasswordAuthenticationMethod(_host.UserName, _host.Password));
}
if (_host.SecretType == LoginSecretType.PrivateKey)
{
PrivateKeyFile keyFile;
if (string.IsNullOrEmpty(_host.Password))
{
keyFile = new PrivateKeyFile(_host.PrivateKeyPath);
}
else
{
keyFile = new PrivateKeyFile(_host.PrivateKeyPath, _host.Password);
}
authMethods.Add(new PrivateKeyAuthenticationMethod(_host.UserName, keyFile));
}
if (_host.Proxy.Type == ProxyTypes.None)
{
return new ConnectionInfo(
host: _host.Address,
username: _host.UserName,
authenticationMethods: authMethods.ToArray());
}
return new ConnectionInfo(
host: _host.Address,
port: _host.Port,
username: _host.UserName,
proxyType: _host.Proxy.Type,
proxyHost: _host.Proxy.Address,
proxyPort: _host.Proxy.Port,
proxyUsername: _host.Proxy.UserName, proxyPassword: _host.Proxy.Password,
authenticationMethods: authMethods.ToArray());
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return null;
}
}
#endregion
}
}