using Microsoft.Extensions.Logging;

using System;

using System.Diagnostics;

using System.IO;

using System.Linq;

namespace FastGithub.HttpServer

{

abstract class CaCertInstallerOfLinux : ICaCertInstaller

{

const string OS_RELEASE_FILE = "/etc/os-release";

/// <summary>

/// 更新工具文件名

/// </summary>

public abstract string CertUpdateFileName { get; }

/// <summary>

/// 证书根目录

/// </summary>

public abstract string RootCertPath { get; }

/// <summary>

/// 是否支持

/// </summary>

/// <returns></returns>

public abstract bool IsSupported();

/// <summary>

/// 安装ca证书

/// </summary>

/// <param name="caCertFilePath">证书文件路径</param>

/// <param name="logger"></param>

public void Install(string caCertFilePath, ILogger logger)

{

var destCertFilePath = Path.Combine(this.RootCertPath, "fastgithub.crt");

if (File.Exists(destCertFilePath) && File.ReadAllBytes(caCertFilePath).SequenceEqual(File.ReadAllBytes(destCertFilePath)))

{

return;

}

if (Environment.UserName != "root")

{

logger.LogWarning($"无法自动安装CA证书{caCertFilePath}，因为没有root权限");

return;

}

try

{

Directory.CreateDirectory(this.RootCertPath);

File.Copy(caCertFilePath, destCertFilePath, overwrite: true);

Process.Start(this.CertUpdateFileName).WaitForExit();

}

catch (Exception ex)

{

File.Delete(destCertFilePath);

logger.LogWarning(ex.Message, "自动安装证书异常");

}

}

/// <summary>

/// 是否为某个发行版

/// </summary>

/// <param name="name"></param>

/// <returns></returns>

protected static bool IsReleasName(string name)

{

if (File.Exists(OS_RELEASE_FILE) == false)

{

return false;

}

foreach (var line in File.ReadAllLines(OS_RELEASE_FILE))

{

if (line.StartsWith("NAME=") && line.Contains(name))

{

return true;

}

}

return false;

}

}

}