feat: 实现依据 InboundSetting 和 OutboundSetting 生成配置的功能.

2025-01-10 10:00:56 +08:00
parent db43e05770
commit f802695f39
5 changed files with 247 additions and 49 deletions
@@ -20,12 +20,14 @@ public abstract class BaseOutboundSetting
    /// <summary>
    /// 发送出站数据所使用的网卡地址.
    /// </summary>
-    public string BindAddress { get; init; } = "0.0.0.0";
+    public string? BindAddress { get; init; }
    /// <summary>
    /// 出站代理协议类型.
    /// </summary>
    public OutboundProtocolType Protocol { get; init; }
    
+    public string? Address { get; init; }
+
    public BaseStreamSetting StreamSetting { get; init; } = new RawStreamSetting();

    public BaseTransportLayerSecuritySetting TransportLayerSecuritySetting { get; init; } = new NoneSecuritySetting();
@@ -41,12 +43,16 @@ public abstract class BaseOutboundSetting
    {
        var root = new JsonObject
        {
-            { "sendThrough", BindAddress },
            { "protocol", Protocol.ToString().ToLower() },
            { "tag", GetTag() },
            { "settings", GetProtocolSetting() }
        };

+        if (!string.IsNullOrEmpty(BindAddress))
+        {
+            root.Add("sendThrough", BindAddress);
+        }
+        
        if (!string.IsNullOrEmpty(NextOutboundTag))
        {
            root.Add("proxySettings", new JsonObject
@@ -12,7 +12,7 @@ public class ShadowSocksOutboundSetting : BaseOutboundSetting

    public string? UserEmail { get; init; } = null;
    public required string Method { get; init; }
-    public required string Address { get; init; }
+    public new required string Address { get; init; }
    public int Port { get; init; }
    public required string Password { get; init; }
    public bool EnableUdpOverTcp { get; init; } = false;
@@ -41,7 +41,7 @@ internal class Program
        await xrayCoreManager.InitialXrayCoreProgram();
        
        var subscribeManager = serviceProvider.GetRequiredService<SubscribeManager>();
-        subscribeManager.StartUpdateSubscribes();
+        await subscribeManager.CheckAndUpdateSubscribes();
        
        // 监听 SIGTERM 和 SIGINT 信号, 以优雅退出
        var cts = new CancellationTokenSource();
@@ -22,7 +22,7 @@ public class SubscribeManager
        _logger = logger;
        _config = config;

-        _config.OnChange((_, _) => Task.Run(async () => await UpdateSubscribes()));
+        _config.OnChange((_, _) => Task.Run(async () => await CheckAndUpdateSubscribes()));
    }

    public delegate void SubscribeUpdatedEventHandler(IDictionary<SubscribeSource, List<BaseOutboundSetting>> subscribeOutbounds);
@@ -30,7 +30,7 @@ public class SubscribeManager

    private ProxdConfig Config => _config.Get(null);
    
-    public async Task UpdateSubscribes(CancellationToken cancellationToken = default)
+    public async Task CheckAndUpdateSubscribes(CancellationToken cancellationToken = default)
    {
        var httpClient = new HttpClient();

@@ -100,7 +100,7 @@ public class SubscribeManager
        {
            while (!cts.IsCancellationRequested)
            {
-                await UpdateSubscribes(cts.Token);
+                await CheckAndUpdateSubscribes(cts.Token);
                await Task.Delay(TimeSpan.FromHours(12), cts.Token);
            }
        }, cts.Token);
@@ -4,44 +4,37 @@ using System.Net;
 using System.Runtime.InteropServices;
 using System.Security.Cryptography;
 using System.Text.Json;
+using System.Text.Json.Nodes;
 using System.Text.RegularExpressions;
 using Microsoft.Extensions.Logging;
-using Proxd_man.Subscribe;
+using Microsoft.Extensions.Options;
+using Proxd_man.Config;
+using Proxd_man.Config.Outbound;

 namespace Proxd_man;

-public class XrayCoreManager
+public class XrayCoreManager(
+    ILogger<XrayCoreManager> logger,
+    IOptionsMonitor<ProxdConfig> config)
 {
-    
    private const string XrayLatestReleaseApiUrl = "https://api.github.com/repos/XTLS/Xray-core/releases/latest";
+
    private const string XrayLatestReleaseAssetDownloadUrlPrefix =
        "https://github.com/XTLS/Xray-core/releases/latest/download/";

-    private readonly ILogger<XrayCoreManager> _logger;
-    private readonly string _coreProgramDir;
-    private readonly string _workingDirectory;
-
-    public XrayCoreManager(
-        ILogger<XrayCoreManager> logger,
-        SubscribeManager subscribeManager,
-        string coreProgramDir = "./xray-core",
-        string workingDirectory = "./xray-core-run")
-    {
-        _logger = logger;
-        _coreProgramDir = coreProgramDir;
-        _workingDirectory = workingDirectory;
+    private string CoreProgramDir => config.CurrentValue.XrayCoreProgramDirectory;
+    private string WorkingDirectory => config.CurrentValue.XrayCoreWorkingDirectory;

    // TODO: 看看注册订阅更新事件后, 需要进行哪些操作.
-    }

    public string GetXrayCoreProgramPath()
    {
        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
        {
-            return _coreProgramDir + "/xray.exe";
+            return CoreProgramDir + "/xray.exe";
        }

-        return _coreProgramDir + "/xray";
+        return CoreProgramDir + "/xray";
    }

    public string GetXrayCoreProgramDownloadUrl()
@@ -122,9 +115,9 @@ public class XrayCoreManager
            throw new Exception("Xray-Core program not found: " + programPath);
        }

-        if (!Directory.Exists(_workingDirectory))
+        if (!Directory.Exists(WorkingDirectory))
        {
-            Directory.CreateDirectory(_workingDirectory);
+            Directory.CreateDirectory(WorkingDirectory);
        }

        return new Process
@@ -136,7 +129,7 @@ public class XrayCoreManager
                RedirectStandardOutput = redirectOutput,
                UseShellExecute = false,
                CreateNoWindow = true,
-                WorkingDirectory = _workingDirectory
+                WorkingDirectory = WorkingDirectory
            }
        };
    }
@@ -188,30 +181,30 @@ public class XrayCoreManager

    public async Task FetchXrayCoreProgram()
    {
-        if (!Directory.Exists(_coreProgramDir))
+        if (!Directory.Exists(CoreProgramDir))
        {
-            Directory.CreateDirectory(_coreProgramDir);
+            Directory.CreateDirectory(CoreProgramDir);
        }

        var programArchiveUrl = GetXrayCoreProgramDownloadUrl();
        var programArchiveDigestUrl = programArchiveUrl + ".dgst";
-        _logger.LogDebug("Xray-Core 下载地址: {programArchiveUrl}", programArchiveUrl);
-        _logger.LogDebug("Xray-Core 下载地址 (Digest): {programArchiveDigestUrl}", programArchiveDigestUrl);
+        logger.LogDebug("Xray-Core 下载地址: {programArchiveUrl}", programArchiveUrl);
+        logger.LogDebug("Xray-Core 下载地址 (Digest): {programArchiveDigestUrl}", programArchiveDigestUrl);

        var tempArchiveFile = Path.GetTempFileName();

        using var httpClient = new HttpClient();

-        _logger.LogDebug("正在下载 Xray-Core...");
+        logger.LogDebug("正在下载 Xray-Core...");
        await using var archiveStream = await httpClient.GetStreamAsync(programArchiveUrl);
        await using (var programArchiveFileStream = new FileStream(tempArchiveFile, FileMode.Create, FileAccess.Write))
        {
            await archiveStream.CopyToAsync(programArchiveFileStream);
        }

-        _logger.LogDebug("正在获取 SHA-256 Digest...");
+        logger.LogDebug("正在获取 SHA-256 Digest...");
        var digests = await httpClient.GetStringAsync(programArchiveDigestUrl);
-        _logger.LogDebug("可用的 Digests: \n{digests}", digests);
+        logger.LogDebug("可用的 Digests: \n{digests}", digests);

        // digests 每行都有一个不同算法的 digest HEX 值, 因此从 digests 读出开头为 SHA-256= 的行, 并提取出其右侧的 Sha256 值
        var sha256Digest =
@@ -222,7 +215,7 @@ public class XrayCoreManager
            throw new Exception("Failed to get SHA-256 digest.");
        }

-        _logger.LogDebug("SHA-256 Digest: {sha256Digest}", sha256Digest);
+        logger.LogDebug("SHA-256 Digest: {sha256Digest}", sha256Digest);
        // Verify digest
        using var sha256 = SHA256.Create();

@@ -230,17 +223,17 @@ public class XrayCoreManager
        {
            var localDigest = await sha256.ComputeHashAsync(localArchiveFileStream);
            var localDigestHex = BitConverter.ToString(localDigest).Replace("-", "").ToLower();
-            _logger.LogDebug("本地 SHA-256 Digest: {localDigest}", localDigestHex);
+            logger.LogDebug("本地 SHA-256 Digest: {localDigest}", localDigestHex);

            if (localDigestHex != sha256Digest)
            {
                throw new Exception("SHA-256 digest mismatch.");
            }

-            _logger.LogDebug("SHA-256 Digest 验证通过.");
+            logger.LogDebug("SHA-256 Digest 验证通过.");
        }

-        ZipFile.ExtractToDirectory(tempArchiveFile, _coreProgramDir, true);
+        ZipFile.ExtractToDirectory(tempArchiveFile, CoreProgramDir, true);

        // Set permissions
        if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
@@ -258,14 +251,14 @@ public class XrayCoreManager

    public async Task InitialXrayCoreProgram()
    {
-        _logger.LogInformation("正在检查 Xray-Core 安装情况以及版本...");
+        logger.LogInformation("正在检查 Xray-Core 安装情况以及版本...");
        var currentVersion = await GetCurrentXrayCoreVersion();
-        _logger.LogDebug("当前 Xray-Core 版本: {currentVersion}", currentVersion);
+        logger.LogDebug("当前 Xray-Core 版本: {currentVersion}", currentVersion);
        var requiredUpdate = false;
        if (currentVersion == null)
        {
            requiredUpdate = true;
-            _logger.LogInformation("未找到 Xray-Core, 开始下载最新版本...");
+            logger.LogInformation("未找到 Xray-Core, 开始下载最新版本...");
        }
        else
        {
@@ -273,7 +266,7 @@ public class XrayCoreManager
            if (currentVersion != latestXrayCoreVersion)
            {
                requiredUpdate = true;
-                _logger.LogInformation("发现新版本 Xray-Core (Version: {latestVersion}), 开始下载最新版本...",
+                logger.LogInformation("发现新版本 Xray-Core (Version: {latestVersion}), 开始下载最新版本...",
                    latestXrayCoreVersion);
            }
        }
@@ -281,11 +274,11 @@ public class XrayCoreManager
        if (requiredUpdate)
        {
            await FetchXrayCoreProgram();
-            _logger.LogInformation("Xray-Core 更新完成.");
+            logger.LogInformation("Xray-Core 更新完成.");
        }
        else
        {
-            _logger.LogInformation("Xray-Core 已是最新版本, 无需更新.");
+            logger.LogInformation("Xray-Core 已是最新版本, 无需更新.");
        }
    }

@@ -297,4 +290,203 @@ public class XrayCoreManager
        await process.WaitForExitAsync();
        return process.ExitCode == 0;
    }
+
+    /// <summary>
+    /// 生成最终的 Xray-Core 配置 JSON 对象.
+    ///
+    /// 注意, 在 Xray-Core 中, Inbound 和 Outbound 的首位配置很重要.
+    /// </summary>
+    /// <param name="inboundConfigs">配置使用的入站设置.</param>
+    /// <param name="outboundSetting">该配置使用的出站配置.</param>
+    /// <param name="onlyTest"></param>
+    /// <returns></returns>
+    public JsonObject GenerateXrayCoreConfigJson(List<IInboundSetting> inboundConfigs,
+        BaseOutboundSetting outboundSetting, bool onlyTest = false)
+    {
+        // 基本的设置.
+        var proxyConfig = new JsonObject
+        {
+            {
+                "log", new JsonObject
+                {
+                    { "loglevel", "warning" }
+                }
+            },
+            {
+                "policy", new JsonObject
+                {
+                    {
+                        "levels", new JsonObject
+                        {
+                            // 给 DNS 使用的.
+                            {
+                                "1", new JsonObject
+                                {
+                                    { "connIdle", 30 }
+                                }
+                            }
+                        }
+                    },
+                    {
+                        "system", new JsonObject
+                        {
+                            { "statsOutboundDownlink", true },
+                            { "statsOutboundUplink", true }
+                        }
+                    }
+                }
+            },
+            { "stats", new JsonObject() }
+        };
+
+        // ------------- DNS 配置 -------------
+        var directResolveDomains = new JsonArray();
+        var localDnsServer = new JsonObject
+        {
+            { "address", "localhost" },
+            { "domains", directResolveDomains },
+            { "queryStrategy", "" }
+        };
+
+        if (!onlyTest)
+        {
+            directResolveDomains.Add("geosite:cn");
+        }
+
+        // 如果不是一个 IP 地址(v4 或 v6)，则添加到 DNS 服务器列表中
+        if (!IPAddress.TryParse(outboundSetting.Address, out _))
+        {
+            directResolveDomains.Add($"full:{outboundSetting.Address}");
+        }
+
+        var dnsServers = new JsonArray(new JsonObject
+        {
+            { "address", config.CurrentValue.RemoteDnsServer },
+            { "domains", new JsonArray() },
+            { "queryStrategy", "" }
+        }, localDnsServer);
+
+        proxyConfig.Add("dns", new JsonObject
+        {
+            { "disableFallback", true },
+            { "servers", dnsServers }
+        });
+        // ------------- DNS 配置 ↑ -------------
+        // ------------ Inbound 配置 ------------
+
+        var inbounds = new JsonArray();
+        proxyConfig.Add("inbounds", inbounds);
+        foreach (var inboundConfig in inboundConfigs)
+        {
+            inbounds.Add(inboundConfig.ToJsonSetting());
+        }
+
+        // ------------ Inbound 配置 ↑ ------------
+
+        var outbounds = new JsonArray();
+        proxyConfig.Add("outbounds", outbounds);
+
+        var proxyOutboundSettings = outboundSetting.ToJsonSetting();
+        proxyOutboundSettings.Add("domainStrategy", "AsIs");
+        outbounds.Add(proxyOutboundSettings);
+
+        outbounds.Add(new FreedomOutboundSetting("bypass")
+        {
+            Name = "bypass"
+        }.ToJsonSetting());
+        outbounds.Add(new FreedomOutboundSetting
+        {
+            Name = "direct"
+        }.ToJsonSetting());
+        outbounds.Add(new BlackholeOutboundSetting
+        {
+            Name = "block"
+        }.ToJsonSetting());
+        // 添加 DNS 出站配置, 要求 DNS 走 Proxy 代理出站.
+        outbounds.Add(new JsonObject
+        {
+            { "protocol", "dns" },
+            { "tag", "dns-out" },
+            {
+                "settings", new JsonObject
+                {
+                    { "address", "1.1.1.1" },
+                    { "port", 53 },
+                    { "network", "tcp" },
+                    { "userLevel", 1 }
+                }
+            },
+            {
+                "proxySettings", new JsonObject
+                {
+                    { "tag", outboundSetting.GetTag() },
+                    { "transportLayer", true }
+                }
+            }
+        });
+
+        // ------------ Outbound 配置 ------------
+        // ------------ Routing 配置 -------------
+        
+        var routingSettings = new JsonObject
+        {
+            { "domainStrategy", "AsIs" }
+        };
+        proxyConfig.Add("routing", routingSettings);
+
+        var inboundTags = new JsonArray();
+        foreach (var inboundConfig in inboundConfigs)
+        {
+            inboundTags.Add(inboundConfig.GetTag());
+        }
+
+        var rules = new JsonArray(new JsonObject
+        {
+            { "inboundTag", inboundTags },
+            { "outboundTag", "dns-out" },
+            { "type", "field" },
+            { "port", "53" }
+        })
+        {
+            new JsonObject
+            {
+                { "ip", new JsonArray("geoip:cn", "geoip:private") },
+                { "outboundTag", "bypass" },
+                { "type", "field" },
+            },
+            new JsonObject
+            {
+                { "domain", new JsonArray("geosite:cn") },
+                { "outboundTag", "bypass" },
+                { "type", "field" },
+            },
+            new JsonObject
+            {
+                { "outboundTag", "proxy" },
+                { "port", "0-65535" },
+                { "type", "field" },
+            }
+        };
+
+        routingSettings.Add("rules", rules);
+        return proxyConfig;
+    }
+
+    public Process CreateOutboundTestProcess(ushort inboundHttpPort, BaseOutboundSetting outboundSetting)
+    {
+        var configJson = GenerateXrayCoreConfigJson([
+            new HttpInboundSetting
+            {
+                Port = inboundHttpPort
+            }
+        ], outboundSetting, true);
+
+        var configFilePath = Path.Combine(Path.Combine(WorkingDirectory, "test-config"), Path.GetRandomFileName() + ".json");
+        using var configFileStream = File.CreateText(configFilePath);
+        configFileStream.Write(JsonSerializer.Serialize(configJson));
+
+        return CreateXrayCoreProcess($"run -config {configFilePath}");
+    }
+    
+    
 }