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| 1 | +using System.ComponentModel; |
| 2 | +using System.Diagnostics; |
| 3 | +using System.Runtime.InteropServices; |
| 4 | +using System.Text; |
| 5 | +using System.Text.RegularExpressions; |
| 6 | +using Microsoft.AspNetCore.Mvc; |
| 7 | + |
| 8 | +namespace MaiChartManager.Controllers.Mod; |
| 9 | + |
| 10 | +[ApiController] |
| 11 | +[Route("MaiChartManagerServlet/[action]Api")] |
| 12 | +public class PdxController(ILogger<PdxController> logger) : ControllerBase |
| 13 | +{ |
| 14 | + private static string PdxDriverPath => Path.Combine(StaticSettings.exeDir, "pdx-driver.exe"); |
| 15 | + |
| 16 | + public record PdxDriverStatusDto(bool IsUsingWinusb, int DeviceCount, bool Available, string[] DevicePaths); |
| 17 | + |
| 18 | + [HttpGet] |
| 19 | + public string[] GetPdxDevicePaths() |
| 20 | + { |
| 21 | + try |
| 22 | + { |
| 23 | + return PdxDeviceHelper.GetDevicePaths(PdxDeviceHelper.PdxVid, PdxDeviceHelper.PdxPid); |
| 24 | + } |
| 25 | + catch (Exception ex) |
| 26 | + { |
| 27 | + logger.LogError(ex, "Failed to get pdx device paths"); |
| 28 | + return []; |
| 29 | + } |
| 30 | + } |
| 31 | + |
| 32 | + [HttpGet] |
| 33 | + public PdxDriverStatusDto GetPdxDriverStatus() |
| 34 | + { |
| 35 | + try |
| 36 | + { |
| 37 | + var paths = GetPdxDevicePaths(); |
| 38 | + var isWinUsb = PdxDeviceHelper.IsUsingWinUsb(PdxDeviceHelper.PdxVid, PdxDeviceHelper.PdxPid); |
| 39 | + return new PdxDriverStatusDto( |
| 40 | + IsUsingWinusb: isWinUsb, |
| 41 | + DeviceCount: paths.Length, |
| 42 | + Available: System.IO.File.Exists(PdxDriverPath), |
| 43 | + DevicePaths: paths |
| 44 | + ); |
| 45 | + } |
| 46 | + catch (Exception ex) |
| 47 | + { |
| 48 | + logger.LogError(ex, "Failed to get pdx driver status"); |
| 49 | + return new PdxDriverStatusDto(IsUsingWinusb: false, DeviceCount: 0, Available: false, DevicePaths: []); |
| 50 | + } |
| 51 | + } |
| 52 | + |
| 53 | + [HttpPost] |
| 54 | + public IActionResult SwitchPdxDriver([FromQuery] string direction) |
| 55 | + { |
| 56 | + Process? process = null; |
| 57 | + try |
| 58 | + { |
| 59 | + process = Process.Start(new ProcessStartInfo |
| 60 | + { |
| 61 | + FileName = PdxDriverPath, |
| 62 | + Arguments = direction, |
| 63 | + UseShellExecute = true, |
| 64 | + Verb = "runas" |
| 65 | + }); |
| 66 | + |
| 67 | + if (process == null) return StatusCode(500, "无法启动 pdx-driver.exe"); |
| 68 | + |
| 69 | + var exited = process.WaitForExit(300000); |
| 70 | + if (!exited) |
| 71 | + { |
| 72 | + process.Kill(); |
| 73 | + return StatusCode(500, "驱动切换超时"); |
| 74 | + } |
| 75 | + |
| 76 | + if (process.ExitCode != 0) |
| 77 | + return StatusCode(500, $"驱动切换失败,退出码: {process.ExitCode}"); |
| 78 | + |
| 79 | + return Ok(); |
| 80 | + } |
| 81 | + catch (Win32Exception ex) when (ex.NativeErrorCode == 1223) |
| 82 | + { |
| 83 | + return BadRequest("用户取消了权限请求"); |
| 84 | + } |
| 85 | + catch (Exception ex) |
| 86 | + { |
| 87 | + return StatusCode(500, ex.Message); |
| 88 | + } |
| 89 | + finally |
| 90 | + { |
| 91 | + process?.Dispose(); |
| 92 | + } |
| 93 | + } |
| 94 | + |
| 95 | + /// <summary> |
| 96 | + /// 使用 Windows SetupAPI 枚举 PDX USB 设备并检查驱动状态的纯 C# 实现。 |
| 97 | + /// 替代之前通过 DllImport 调用 pdx-driver.exe 的方式(会导致栈溢出崩溃)。 |
| 98 | + /// </summary> |
| 99 | + private static class PdxDeviceHelper |
| 100 | + { |
| 101 | + public const ushort PdxVid = 0x3356; |
| 102 | + public const ushort PdxPid = 0x3003; |
| 103 | + |
| 104 | + private const int DIGCF_PRESENT = 0x02; |
| 105 | + private const int DIGCF_ALLCLASSES = 0x04; |
| 106 | + |
| 107 | + private const int SPDRP_HARDWAREID = 0x01; |
| 108 | + private const int SPDRP_SERVICE = 0x04; |
| 109 | + private const int SPDRP_LOCATION_PATHS = 0x23; |
| 110 | + |
| 111 | + private static readonly Regex UsbPortRegex = new(@"#USB\((\d+)\)", RegexOptions.Compiled); |
| 112 | + |
| 113 | + [StructLayout(LayoutKind.Sequential)] |
| 114 | + private struct SP_DEVINFO_DATA |
| 115 | + { |
| 116 | + public uint cbSize; |
| 117 | + public Guid ClassGuid; |
| 118 | + public uint DevInst; |
| 119 | + public IntPtr Reserved; |
| 120 | + } |
| 121 | + |
| 122 | + [DllImport("setupapi.dll", CharSet = CharSet.Unicode, SetLastError = true)] |
| 123 | + private static extern IntPtr SetupDiGetClassDevs( |
| 124 | + IntPtr classGuid, |
| 125 | + string? enumerator, |
| 126 | + IntPtr hwndParent, |
| 127 | + int flags); |
| 128 | + |
| 129 | + [DllImport("setupapi.dll", SetLastError = true)] |
| 130 | + private static extern bool SetupDiEnumDeviceInfo( |
| 131 | + IntPtr deviceInfoSet, |
| 132 | + int memberIndex, |
| 133 | + ref SP_DEVINFO_DATA deviceInfoData); |
| 134 | + |
| 135 | + [DllImport("setupapi.dll", CharSet = CharSet.Unicode, SetLastError = true)] |
| 136 | + private static extern bool SetupDiGetDeviceRegistryProperty( |
| 137 | + IntPtr deviceInfoSet, |
| 138 | + ref SP_DEVINFO_DATA deviceInfoData, |
| 139 | + int property, |
| 140 | + out int propertyRegDataType, |
| 141 | + byte[]? propertyBuffer, |
| 142 | + int propertyBufferSize, |
| 143 | + out int requiredSize); |
| 144 | + |
| 145 | + [DllImport("setupapi.dll", CharSet = CharSet.Unicode)] |
| 146 | + private static extern bool SetupDiDestroyDeviceInfoList(IntPtr deviceInfoSet); |
| 147 | + |
| 148 | + /// <summary> |
| 149 | + /// 枚举所有匹配指定 VID/PID 的 USB 设备,返回它们的端口链路径(如 "2.2")。 |
| 150 | + /// </summary> |
| 151 | + public static string[] GetDevicePaths(ushort vid, ushort pid) |
| 152 | + { |
| 153 | + var paths = new HashSet<string>(); |
| 154 | + var deviceInfoSet = SetupDiGetClassDevs( |
| 155 | + IntPtr.Zero, "USB", IntPtr.Zero, |
| 156 | + DIGCF_PRESENT | DIGCF_ALLCLASSES); |
| 157 | + |
| 158 | + if (deviceInfoSet == IntPtr.Zero || deviceInfoSet == new IntPtr(-1)) |
| 159 | + return []; |
| 160 | + |
| 161 | + try |
| 162 | + { |
| 163 | + var devInfoData = new SP_DEVINFO_DATA |
| 164 | + { |
| 165 | + cbSize = (uint)Marshal.SizeOf<SP_DEVINFO_DATA>() |
| 166 | + }; |
| 167 | + |
| 168 | + for (var i = 0; SetupDiEnumDeviceInfo(deviceInfoSet, i, ref devInfoData); i++) |
| 169 | + { |
| 170 | + if (!MatchesVidPid(deviceInfoSet, ref devInfoData, vid, pid)) |
| 171 | + continue; |
| 172 | + |
| 173 | + var portChain = GetPortChain(deviceInfoSet, ref devInfoData); |
| 174 | + if (!string.IsNullOrEmpty(portChain)) |
| 175 | + paths.Add(portChain); |
| 176 | + } |
| 177 | + } |
| 178 | + finally |
| 179 | + { |
| 180 | + SetupDiDestroyDeviceInfoList(deviceInfoSet); |
| 181 | + } |
| 182 | + |
| 183 | + return [.. paths]; |
| 184 | + } |
| 185 | + |
| 186 | + /// <summary> |
| 187 | + /// 检查是否有任何匹配指定 VID/PID 的 USB 设备正在使用 WinUSB 驱动。 |
| 188 | + /// </summary> |
| 189 | + public static bool IsUsingWinUsb(ushort vid, ushort pid) |
| 190 | + { |
| 191 | + var deviceInfoSet = SetupDiGetClassDevs( |
| 192 | + IntPtr.Zero, "USB", IntPtr.Zero, |
| 193 | + DIGCF_PRESENT | DIGCF_ALLCLASSES); |
| 194 | + |
| 195 | + if (deviceInfoSet == IntPtr.Zero || deviceInfoSet == new IntPtr(-1)) |
| 196 | + return false; |
| 197 | + |
| 198 | + try |
| 199 | + { |
| 200 | + var devInfoData = new SP_DEVINFO_DATA |
| 201 | + { |
| 202 | + cbSize = (uint)Marshal.SizeOf<SP_DEVINFO_DATA>() |
| 203 | + }; |
| 204 | + |
| 205 | + for (var i = 0; SetupDiEnumDeviceInfo(deviceInfoSet, i, ref devInfoData); i++) |
| 206 | + { |
| 207 | + if (!MatchesVidPid(deviceInfoSet, ref devInfoData, vid, pid)) |
| 208 | + continue; |
| 209 | + |
| 210 | + var service = GetStringProperty(deviceInfoSet, ref devInfoData, SPDRP_SERVICE); |
| 211 | + if (string.Equals(service, "WinUSB", StringComparison.OrdinalIgnoreCase)) |
| 212 | + return true; |
| 213 | + } |
| 214 | + } |
| 215 | + finally |
| 216 | + { |
| 217 | + SetupDiDestroyDeviceInfoList(deviceInfoSet); |
| 218 | + } |
| 219 | + |
| 220 | + return false; |
| 221 | + } |
| 222 | + |
| 223 | + /// <summary> |
| 224 | + /// 检查设备的 HardwareID 是否包含指定的 VID/PID。 |
| 225 | + /// HardwareID 格式如: USB\VID_3356&PID_3003&REV_0200 |
| 226 | + /// </summary> |
| 227 | + private static bool MatchesVidPid(IntPtr deviceInfoSet, ref SP_DEVINFO_DATA devInfoData, ushort vid, ushort pid) |
| 228 | + { |
| 229 | + var hardwareIds = GetMultiStringProperty(deviceInfoSet, ref devInfoData, SPDRP_HARDWAREID); |
| 230 | + if (hardwareIds == null) return false; |
| 231 | + |
| 232 | + var vidStr = $"VID_{vid:X4}"; |
| 233 | + var pidStr = $"PID_{pid:X4}"; |
| 234 | + |
| 235 | + foreach (var id in hardwareIds) |
| 236 | + { |
| 237 | + if (id.Contains(vidStr, StringComparison.OrdinalIgnoreCase) && |
| 238 | + id.Contains(pidStr, StringComparison.OrdinalIgnoreCase)) |
| 239 | + return true; |
| 240 | + } |
| 241 | + |
| 242 | + return false; |
| 243 | + } |
| 244 | + |
| 245 | + /// <summary> |
| 246 | + /// 从设备的 LocationPaths 属性提取 USB 端口链。 |
| 247 | + /// LocationPaths 格式: PCIROOT(0)#PCI(0801)#USBROOT(0)#USB(2)#USB(2)#USBMI(1) |
| 248 | + /// 提取 #USB(\d+) 部分并用 "." 连接,如 "2.2"。 |
| 249 | + /// </summary> |
| 250 | + private static string? GetPortChain(IntPtr deviceInfoSet, ref SP_DEVINFO_DATA devInfoData) |
| 251 | + { |
| 252 | + var locationPaths = GetMultiStringProperty(deviceInfoSet, ref devInfoData, SPDRP_LOCATION_PATHS); |
| 253 | + if (locationPaths == null || locationPaths.Length == 0) return null; |
| 254 | + |
| 255 | + // 使用第一个 LocationPath |
| 256 | + var path = locationPaths[0]; |
| 257 | + var matches = UsbPortRegex.Matches(path); |
| 258 | + if (matches.Count == 0) return null; |
| 259 | + |
| 260 | + var ports = new string[matches.Count]; |
| 261 | + for (var i = 0; i < matches.Count; i++) |
| 262 | + ports[i] = matches[i].Groups[1].Value; |
| 263 | + |
| 264 | + return string.Join(".", ports); |
| 265 | + } |
| 266 | + |
| 267 | + /// <summary> |
| 268 | + /// 获取设备的 REG_SZ 类型注册表属性。 |
| 269 | + /// </summary> |
| 270 | + private static string? GetStringProperty(IntPtr deviceInfoSet, ref SP_DEVINFO_DATA devInfoData, int property) |
| 271 | + { |
| 272 | + // 先查询所需大小(预期返回 false,ERROR_INSUFFICIENT_BUFFER) |
| 273 | + SetupDiGetDeviceRegistryProperty( |
| 274 | + deviceInfoSet, ref devInfoData, property, |
| 275 | + out _, null, 0, out int requiredSize); |
| 276 | + |
| 277 | + if (requiredSize <= 0) return null; |
| 278 | + |
| 279 | + var buffer = new byte[requiredSize]; |
| 280 | + if (!SetupDiGetDeviceRegistryProperty( |
| 281 | + deviceInfoSet, ref devInfoData, property, |
| 282 | + out _, buffer, buffer.Length, out _)) |
| 283 | + return null; |
| 284 | + |
| 285 | + return Encoding.Unicode.GetString(buffer).TrimEnd('\0'); |
| 286 | + } |
| 287 | + |
| 288 | + /// <summary> |
| 289 | + /// 获取设备的 REG_MULTI_SZ 类型注册表属性。 |
| 290 | + /// REG_MULTI_SZ 格式: 多个 null 终止的字符串,最后以双 null 结尾。 |
| 291 | + /// </summary> |
| 292 | + private static string[]? GetMultiStringProperty(IntPtr deviceInfoSet, ref SP_DEVINFO_DATA devInfoData, int property) |
| 293 | + { |
| 294 | + // 先查询所需大小(预期返回 false,ERROR_INSUFFICIENT_BUFFER) |
| 295 | + SetupDiGetDeviceRegistryProperty( |
| 296 | + deviceInfoSet, ref devInfoData, property, |
| 297 | + out _, null, 0, out int requiredSize); |
| 298 | + |
| 299 | + if (requiredSize <= 0) return null; |
| 300 | + |
| 301 | + var buffer = new byte[requiredSize]; |
| 302 | + if (!SetupDiGetDeviceRegistryProperty( |
| 303 | + deviceInfoSet, ref devInfoData, property, |
| 304 | + out _, buffer, buffer.Length, out _)) |
| 305 | + return null; |
| 306 | + |
| 307 | + return Encoding.Unicode.GetString(buffer) |
| 308 | + .Split('\0', StringSplitOptions.RemoveEmptyEntries); |
| 309 | + } |
| 310 | + } |
| 311 | +} |
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