FastGithub/FastGithub.DomainResolve/TomlUtil.cs
2021-08-06 15:21:07 +08:00

94 lines
3.2 KiB
C#

using FastGithub.Configuration;
using System;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
namespace FastGithub.DomainResolve
{
/// <summary>
/// doml配置工具
/// </summary>
static class TomlUtil
{
/// <summary>
/// 设置监听地址
/// </summary>
/// <param name="tomlPath"></param>
/// <param name="endpoint"></param>
/// <returns></returns>
public static Task<bool> SetListensAsync(string tomlPath, IPEndPoint endpoint, CancellationToken cancellationToken = default)
{
return SetAsync(tomlPath, "listen_addresses", $"['{endpoint}']", cancellationToken);
}
/// <summary>
/// 设置ecs
/// </summary>
/// <param name="tomlPath"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public static async Task<bool> SetEdnsClientSubnetAsync(string tomlPath, CancellationToken cancellationToken = default)
{
try
{
var address = await GetPublicIPAddressAsync(cancellationToken);
return await SetAsync(tomlPath, "edns_client_subnet", @$"[""{address}/32""]", cancellationToken);
}
catch (Exception)
{
return false;
}
}
/// <summary>
/// 获取公网ip
/// </summary>
/// <param name="cancellationToken"></param>
/// <returns></returns>
private static async Task<IPAddress> GetPublicIPAddressAsync(CancellationToken cancellationToken)
{
using var httpClient = new HttpClient { Timeout = TimeSpan.FromSeconds(3d) };
var response = await httpClient.GetStringAsync("https://pv.sohu.com/cityjson?ie=utf-8", cancellationToken);
var match = Regex.Match(response, @"\d+\.\d+\.\d+\.\d+");
return match.Success && IPAddress.TryParse(match.Value, out var address)
? address
: throw new FastGithubException("无法获取外网ip");
}
/// <summary>
/// 设置指定键的值
/// </summary>
/// <param name="tomlPath"></param>
/// <param name="key"></param>
/// <param name="value"></param>
public static async Task<bool> SetAsync(string tomlPath, string key, object? value, CancellationToken cancellationToken = default)
{
var setted = false;
var builder = new StringBuilder();
var lines = await File.ReadAllLinesAsync(tomlPath, cancellationToken);
foreach (var line in lines)
{
if (Regex.IsMatch(line, @$"(?<=#*\s*){key}(?=\s*=)") == false)
{
builder.AppendLine(line);
}
else if (setted == false)
{
setted = true;
builder.Append(key).Append(" = ").AppendLine(value?.ToString());
}
}
var toml = builder.ToString();
await File.WriteAllTextAsync(tomlPath, toml, cancellationToken);
return setted;
}
}
}