justme
1e5c660d05
Agents and probes report OS, arch and build (version, tag, commit, time). The backend looks up country and ISP of public addresses only, stores them in node_meta (schema v5) and exposes display info via /api/public/nodes, /api/public/about and /api/admin/build-info behind site.show_build.
82 lines
3.1 KiB
C#
82 lines
3.1 KiB
C#
using System.Runtime.InteropServices;
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using Monitor.Protocol;
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namespace Monitor.Measurement;
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/// <summary>
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/// 读出本机的系统名和架构，只用于在面板上展示。故意只取粗粒度的信息：
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/// 「Debian 12」「Windows 11」「x64」，不读主机名、内核版本、CPU 型号。
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/// </summary>
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public static class PlatformDetector
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{
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public static PlatformInfo Detect()
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{
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PlatformInfo info = Detect(File.Exists("/etc/os-release") ? File.ReadAllLines("/etc/os-release") : []);
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info.Version = Empty(BuildInfo.Version);
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info.Tag = Empty(BuildInfo.Tag);
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info.Commit = Empty(BuildInfo.Commit);
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info.BuiltAt = Empty(BuildInfo.BuiltAt);
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return info;
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}
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private static string? Empty(string value) => value.Length == 0 ? null : value;
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/// <summary>`osRelease` 是 /etc/os-release 的各行（Linux 之外不用）。拆出来是为了好测。</summary>
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internal static PlatformInfo Detect(IEnumerable<string> osRelease)
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{
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string arch = RuntimeInformation.OSArchitecture switch
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{
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Architecture.X64 => "x64",
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Architecture.Arm64 => "arm64",
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Architecture.Arm => "arm",
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Architecture.X86 => "x86",
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var other => other.ToString().ToLowerInvariant(),
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};
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if (OperatingSystem.IsWindows())
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{
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// Windows 11 的版本号还是 10.0，靠内部版本号（22000 起）区分
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string name = Environment.OSVersion.Version.Build >= 22000 ? "Windows 11" : "Windows 10";
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return new PlatformInfo { Os = "windows", Name = name, Arch = arch };
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}
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if (OperatingSystem.IsMacOS())
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{
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return new PlatformInfo { Os = "macos", Name = "macOS", Arch = arch };
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}
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if (OperatingSystem.IsLinux())
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{
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return new PlatformInfo { Os = "linux", Name = LinuxName(osRelease), Arch = arch };
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}
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return new PlatformInfo { Os = "other", Name = null, Arch = arch };
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}
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/// <summary>从 os-release 里取发行版名字和主版本：「Debian GNU/Linux 12 (bookworm)」→「Debian 12」，「OpenWrt 24.10.0」→「OpenWrt 24.10」。</summary>
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internal static string LinuxName(IEnumerable<string> osRelease)
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{
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var values = new Dictionary<string, string>(StringComparer.Ordinal);
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foreach (string line in osRelease)
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{
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int eq = line.IndexOf('=', StringComparison.Ordinal);
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if (eq > 0)
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{
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values[line[..eq].Trim()] = line[(eq + 1)..].Trim().Trim('"', '\'');
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}
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}
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string name = values.GetValueOrDefault("NAME") ?? values.GetValueOrDefault("ID") ?? "Linux";
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name = name.Replace(" GNU/Linux", string.Empty, StringComparison.Ordinal).Trim();
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string? version = values.GetValueOrDefault("VERSION_ID");
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if (string.IsNullOrEmpty(version))
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{
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return name;
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}
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// 只留 主.次：Alpine 的 3.22.1、OpenWrt 的 24.10.0 都截成两段；Debian 的 12 本来就一段
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string[] parts = version.Split('.');
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return $"{name} {string.Join('.', parts.Take(2))}";
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}
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}
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