371 lines
12 KiB
C#
371 lines
12 KiB
C#
#region copyright
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//------------------------------------------------------------------------------
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// 此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
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// 此代码版权（除特别声明外的代码）归作者本人Diego所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议
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// Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
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// Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
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// 使用文档：https://diego2098.gitee.io/thingsgateway-docs/
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// QQ群：605534569
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//------------------------------------------------------------------------------
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#endregion
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using System.Runtime.InteropServices;
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using ThingsGateway.Foundation.Adapter.OPCDA.Rcw;
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namespace ThingsGateway.Foundation.Adapter.OPCDA.Comn;
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#pragma warning disable CA1416 // 验证平台兼容性
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#pragma warning disable IDE0090
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#pragma warning disable IDE0051
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internal class ComInterop
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{
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private static readonly Guid IID_IUnknown = new Guid("00000000-0000-0000-C000-000000000046");
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#region const
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private const uint EOAC_ACCESS_CONTROL = 0x04;
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private const uint EOAC_APPID = 0x08;
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private const uint EOAC_CLOAKING = 0x10;
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private const uint EOAC_DYNAMIC_CLOAKING = 0x40;
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private const uint EOAC_MUTUAL_AUTH = 0x01;
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private const uint EOAC_NONE = 0x00;
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private const uint EOAC_SECURE_REFS = 0x02;
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private const uint EOAC_STATIC_CLOAKING = 0x20;
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/// <summary>
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/// The WIN32 system default locale.
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/// </summary>
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private const int LOCALE_SYSTEM_DEFAULT = 0x800;
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/// <summary>
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/// The WIN32 user default locale.
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/// </summary>
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private const int LOCALE_USER_DEFAULT = 0x400;
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private const uint RPC_C_AUTHN_DCE_PRIVATE = 1;
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private const uint RPC_C_AUTHN_DCE_PUBLIC = 2;
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private const uint RPC_C_AUTHN_DEC_PUBLIC = 4;
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private const uint RPC_C_AUTHN_DEFAULT = 0xFFFFFFFF;
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private const uint RPC_C_AUTHN_DIGEST = 21;
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private const uint RPC_C_AUTHN_DPA = 17;
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private const uint RPC_C_AUTHN_GSS_KERBEROS = 16;
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private const uint RPC_C_AUTHN_GSS_NEGOTIATE = 9;
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private const uint RPC_C_AUTHN_GSS_SCHANNEL = 14;
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private const uint RPC_C_AUTHN_LEVEL_CALL = 3;
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private const uint RPC_C_AUTHN_LEVEL_CONNECT = 2;
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private const uint RPC_C_AUTHN_LEVEL_DEFAULT = 0;
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private const uint RPC_C_AUTHN_LEVEL_NONE = 1;
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private const uint RPC_C_AUTHN_LEVEL_PKT = 4;
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private const uint RPC_C_AUTHN_LEVEL_PKT_INTEGRITY = 5;
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private const uint RPC_C_AUTHN_LEVEL_PKT_PRIVACY = 6;
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private const uint RPC_C_AUTHN_MQ = 100;
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private const uint RPC_C_AUTHN_MSN = 18;
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private const uint RPC_C_AUTHN_NONE = 0;
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private const uint RPC_C_AUTHN_WINNT = 10;
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private const uint RPC_C_AUTHZ_DCE = 2;
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private const uint RPC_C_AUTHZ_DEFAULT = 0xffffffff;
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private const uint RPC_C_AUTHZ_NAME = 1;
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private const uint RPC_C_AUTHZ_NONE = 0;
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private const uint RPC_C_IMP_LEVEL_ANONYMOUS = 1;
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private const uint RPC_C_IMP_LEVEL_DELEGATE = 4;
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private const uint RPC_C_IMP_LEVEL_IDENTIFY = 2;
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private const uint RPC_C_IMP_LEVEL_IMPERSONATE = 3;
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#endregion const
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#region struct
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public struct COSERVERINFO
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{
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public uint dwReserved1;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string pwszName;
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public IntPtr pAuthInfo;
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public uint dwReserved2;
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};
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public struct MULTI_QI
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{
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public IntPtr iid;
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[MarshalAs(UnmanagedType.IUnknown)]
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public object pItf;
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public uint hr;
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}
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
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public struct SOLE_AUTHENTICATION_SERVICE
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{
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public uint dwAuthnSvc;
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public uint dwAuthzSvc;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string pPrincipalName;
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public int hr;
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}
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#endregion struct
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#region win32 api
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[DllImport("ole32.dll")]
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private static extern void CoCreateInstanceEx(ref Guid clsid,
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[MarshalAs(UnmanagedType.IUnknown)] object punkOuter,
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uint dwClsCtx,
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[In] ref COSERVERINFO pServerInfo,
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uint dwCount,
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[In, Out] MULTI_QI[] pResults);
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[DllImport("ole32.dll")]
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private static extern int CoInitializeSecurity(
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IntPtr pSecDesc,
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int cAuthSvc,
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SOLE_AUTHENTICATION_SERVICE[] asAuthSvc,
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IntPtr pReserved1,
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uint dwAuthnLevel,
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uint dwImpLevel,
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IntPtr pAuthList,
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uint dwCapabilities,
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IntPtr pReserved3);
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[DllImport("Kernel32.dll")]
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private static extern int FormatMessageW(
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int dwFlags,
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IntPtr lpSource,
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int dwMessageId,
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int dwLanguageId,
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IntPtr lpBuffer,
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int nSize,
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IntPtr Arguments);
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[DllImport("Kernel32.dll")]
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private static extern int GetSystemDefaultLangID();
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[DllImport("Kernel32.dll")]
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private static extern int GetUserDefaultLangID();
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#endregion win32 api
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/// <summary>
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/// 创建一个COM服务器的实例。
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/// </summary>
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public static object CreateInstance(Guid clsid, string hostName)
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{
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COSERVERINFO coserverInfo = new()
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{
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pwszName = hostName,
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pAuthInfo = IntPtr.Zero,
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dwReserved1 = 0,
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dwReserved2 = 0
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};
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GCHandle hIID = GCHandle.Alloc(IID_IUnknown, GCHandleType.Pinned);
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MULTI_QI[] results = new MULTI_QI[1];
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results[0].iid = hIID.AddrOfPinnedObject();
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results[0].pItf = null;
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results[0].hr = 0;
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try
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{
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// 检查是否在本地或远程连接。
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uint clsctx = 0x01 | 0x04;
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if (hostName != null && hostName.Length > 0 && hostName.ToLower() != "localhost" && hostName != "127.0.0.1")
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{
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clsctx = 0x04 | 0x10;
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}
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// create an instance.
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CoCreateInstanceEx(
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ref clsid,
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null,
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clsctx,
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ref coserverInfo,
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1,
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results);
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}
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catch (Exception ex)
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{
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throw new ExternalException("CoCreateInstanceEx: " + ex.Message);
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}
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finally
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{
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if (hIID.IsAllocated) hIID.Free();
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}
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if (results[0].hr != 0)
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{
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throw new ExternalException("CoCreateInstanceEx: " + GetSystemMessage((int)results[0].hr));
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}
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return results[0].pItf;
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}
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/// <summary>
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/// 指定错误消息文本检索系统。
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/// </summary>
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internal static string GetSystemMessage(int error)
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{
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const int MAX_MESSAGE_LENGTH = 1024;
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const uint FORMAT_MESSAGE_IGNORE_INSERTS = 0x00000200;
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const uint FORMAT_MESSAGE_FROM_SYSTEM = 0x00001000;
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IntPtr buffer = Marshal.AllocCoTaskMem(MAX_MESSAGE_LENGTH);
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_ = FormatMessageW(
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(int)(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM),
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IntPtr.Zero,
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error,
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0,
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buffer,
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MAX_MESSAGE_LENGTH - 1,
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IntPtr.Zero);
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string msg = Marshal.PtrToStringUni(buffer);
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Marshal.FreeCoTaskMem(buffer);
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if (!string.IsNullOrEmpty(msg))
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{
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return msg;
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}
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return string.Format("0x{0,0:X}", error);
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}
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/// <summary>
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/// 初始化COM安全。
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/// </summary>
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internal static void InitializeSecurity()
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{
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int error = CoInitializeSecurity(
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IntPtr.Zero,
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-1,
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null,
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IntPtr.Zero,
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RPC_C_AUTHN_LEVEL_CONNECT,
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RPC_C_IMP_LEVEL_IMPERSONATE,
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IntPtr.Zero,
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EOAC_NONE,
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IntPtr.Zero);
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if (error != 0)
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{
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throw new ExternalException("COM初始化安全: " + GetSystemMessage(error), error);
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}
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}
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/// <summary>
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/// 从枚举器读取guid。
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/// </summary>
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internal static Guid[] ReadClasses(IOPCEnumGUID enumerator)
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{
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List<Guid> guids = new List<Guid>();
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int fetched = 0;
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Guid[] buffer = new Guid[10];
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do
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{
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try
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{
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IntPtr pGuids = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(Guid)) * buffer.Length);
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try
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{
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enumerator.Next(buffer.Length, pGuids, out fetched);
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if (fetched > 0)
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{
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IntPtr pos = pGuids;
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for (int ii = 0; ii < fetched; ii++)
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{
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object o = Marshal.PtrToStructure(pos, typeof(Guid));
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if (o != null)
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{
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buffer[ii] = (Guid)o;
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}
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pos = IntPtr.Add(pos, Marshal.SizeOf(typeof(Guid)));
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guids.Add(buffer[ii]);
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}
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}
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}
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finally
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{
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Marshal.FreeCoTaskMem(pGuids);
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}
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}
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catch (Exception)
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{
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break;
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}
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}
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while (fetched > 0);
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return guids.ToArray();
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}
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/// <summary>
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/// 从枚举器读取guid。
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/// </summary>
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internal static Guid[] ReadClasses(IEnumGUID enumerator)
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{
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List<Guid> guids = new List<Guid>();
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int fetched = 0;
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Guid[] buffer = new Guid[10];
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do
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{
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try
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{
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IntPtr pGuids = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(Guid)) * buffer.Length);
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try
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{
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enumerator.Next(buffer.Length, pGuids, out fetched);
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if (fetched > 0)
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{
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IntPtr pos = pGuids;
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for (int ii = 0; ii < fetched; ii++)
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{
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object o = Marshal.PtrToStructure(pos, typeof(Guid));
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if (o != null)
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{
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buffer[ii] = (Guid)o;
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}
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pos = IntPtr.Add(pos, Marshal.SizeOf(typeof(Guid)));
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guids.Add(buffer[ii]);
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}
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}
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}
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finally
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{
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Marshal.FreeCoTaskMem(pGuids);
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}
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}
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catch (Exception)
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{
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break;
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}
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}
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while (fetched > 0);
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return guids.ToArray();
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}
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/// <summary>
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/// 释放 COM 对象
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/// </summary>
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/// <param name="m_server"></param>
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internal static void RealseComServer(object m_server)
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{
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if (m_server != null && m_server.GetType().IsCOMObject)
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{
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Marshal.ReleaseComObject(m_server);
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}
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}
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} |