我有一个应用程序需要检测它是否以提升的权限运行。我目前的代码设置如下：
static bool IsAdministrator()
{
WindowsIdentity identity = WindowsIdentity.GetCurrent();
WindowsPrincipal principal = new WindowsPrincipal(identity);
return principal.IsInRole (WindowsBuiltInRole.Administrator);
}
这可以检测用户是否是管理员，但如果以没有提升的管理员身份运行则不起作用。 （例如在vshost.exe中）。
如何判断高程是否[已经生效或]可能？
试试这个：
using Microsoft.Win32;
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Security.Principal;
public static class UacHelper
{
private const string uacRegistryKey = "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System";
private const string uacRegistryValue = "EnableLUA";
private static uint STANDARD_RIGHTS_READ = 0x00020000;
private static uint TOKEN_QUERY = 0x0008;
private static uint TOKEN_READ = (STANDARD_RIGHTS_READ | TOKEN_QUERY);
[DllImport("advapi32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool OpenProcessToken(IntPtr ProcessHandle, UInt32 DesiredAccess, out IntPtr TokenHandle);
[DllImport("advapi32.dll", SetLastError = true)]
public static extern bool GetTokenInformation(IntPtr TokenHandle, TOKEN_INFORMATION_CLASS TokenInformationClass, IntPtr TokenInformation, uint TokenInformationLength, out uint ReturnLength);
public enum TOKEN_INFORMATION_CLASS
{
TokenUser = 1,
TokenGroups,
TokenPrivileges,
TokenOwner,
TokenPrimaryGroup,
TokenDefaultDacl,
TokenSource,
TokenType,
TokenImpersonationLevel,
TokenStatistics,
TokenRestrictedSids,
TokenSessionId,
TokenGroupsAndPrivileges,
TokenSessionReference,
TokenSandBoxInert,
TokenAuditPolicy,
TokenOrigin,
TokenElevationType,
TokenLinkedToken,
TokenElevation,
TokenHasRestrictions,
TokenAccessInformation,
TokenVirtualizationAllowed,
TokenVirtualizationEnabled,
TokenIntegrityLevel,
TokenUIAccess,
TokenMandatoryPolicy,
TokenLogonSid,
MaxTokenInfoClass
}
public enum TOKEN_ELEVATION_TYPE
{
TokenElevationTypeDefault = 1,
TokenElevationTypeFull,
TokenElevationTypeLimited
}
public static bool IsUacEnabled
{
get
{
RegistryKey uacKey = Registry.LocalMachine.OpenSubKey(uacRegistryKey, false);
bool result = uacKey.GetValue(uacRegistryValue).Equals(1);
return result;
}
}
public static bool IsProcessElevated
{
get
{
if (IsUacEnabled)
{
IntPtr tokenHandle;
if (!OpenProcessToken(Process.GetCurrentProcess().Handle, TOKEN_READ, out tokenHandle))
{
throw new ApplicationException("Could not get process token. Win32 Error Code: " + Marshal.GetLastWin32Error());
}
TOKEN_ELEVATION_TYPE elevationResult = TOKEN_ELEVATION_TYPE.TokenElevationTypeDefault;
int elevationResultSize = Marshal.SizeOf((int)elevationResult);
uint returnedSize = 0;
IntPtr elevationTypePtr = Marshal.AllocHGlobal(elevationResultSize);
bool success = GetTokenInformation(tokenHandle, TOKEN_INFORMATION_CLASS.TokenElevationType, elevationTypePtr, (uint)elevationResultSize, out returnedSize);
if (success)
{
elevationResult = (TOKEN_ELEVATION_TYPE)Marshal.ReadInt32(elevationTypePtr);
bool isProcessAdmin = elevationResult == TOKEN_ELEVATION_TYPE.TokenElevationTypeFull;
return isProcessAdmin;
}
else
{
throw new ApplicationException("Unable to determine the current elevation.");
}
}
else
{
WindowsIdentity identity = WindowsIdentity.GetCurrent();
WindowsPrincipal principal = new WindowsPrincipal(identity);
bool result = principal.IsInRole(WindowsBuiltInRole.Administrator);
return result;
}
}
}
}
（提出问题六年后的新答案）
免责声明：这只是在我的特定操作系统上使用我的特定用户的特定设置时发生的事情：
using System.Security.Principal;
// ...
static bool IsElevated
{
get
{
return WindowsIdentity.GetCurrent().Owner
.IsWellKnown(WellKnownSidType.BuiltinAdministratorsSid);
}
}
因此，当我运行“以管理员身份运行”时，属性get访问器返回true。正常运行时（即使我的用户“是”管理员，只是没有“以管理员身份”运行此特定应用程序），它将返回false。
这似乎比许多其他答案简单得多。
我不知道是否存在失败的情况。
PS！这也似乎没问题：
static bool IsElevated
{
get
{
var id = WindowsIdentity.GetCurrent();
return id.Owner != id.User;
}
}
以下是this answer的修改版本，包括正确处理资源和处理域管理员等内容。
public static class UacHelper
{
private const string uacRegistryKey = "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System";
private const string uacRegistryValue = "EnableLUA";
private static uint STANDARD_RIGHTS_READ = 0x00020000;
private static uint TOKEN_QUERY = 0x0008;
private static uint TOKEN_READ = (STANDARD_RIGHTS_READ | TOKEN_QUERY);
[DllImport("advapi32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool OpenProcessToken(IntPtr ProcessHandle, UInt32 DesiredAccess, out IntPtr TokenHandle);
[DllImport("kernel32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool CloseHandle(IntPtr hObject);
[DllImport("advapi32.dll", SetLastError = true)]
public static extern bool GetTokenInformation(IntPtr TokenHandle, TOKEN_INFORMATION_CLASS TokenInformationClass, IntPtr TokenInformation, uint TokenInformationLength, out uint ReturnLength);
public enum TOKEN_INFORMATION_CLASS
{
TokenUser = 1,
TokenGroups,
TokenPrivileges,
TokenOwner,
TokenPrimaryGroup,
TokenDefaultDacl,
TokenSource,
TokenType,
TokenImpersonationLevel,
TokenStatistics,
TokenRestrictedSids,
TokenSessionId,
TokenGroupsAndPrivileges,
TokenSessionReference,
TokenSandBoxInert,
TokenAuditPolicy,
TokenOrigin,
TokenElevationType,
TokenLinkedToken,
TokenElevation,
TokenHasRestrictions,
TokenAccessInformation,
TokenVirtualizationAllowed,
TokenVirtualizationEnabled,
TokenIntegrityLevel,
TokenUIAccess,
TokenMandatoryPolicy,
TokenLogonSid,
MaxTokenInfoClass
}
public enum TOKEN_ELEVATION_TYPE
{
TokenElevationTypeDefault = 1,
TokenElevationTypeFull,
TokenElevationTypeLimited
}
public static bool IsUacEnabled
{
get
{
using (RegistryKey uacKey = Registry.LocalMachine.OpenSubKey(uacRegistryKey, false))
{
bool result = uacKey.GetValue(uacRegistryValue).Equals(1);
return result;
}
}
}
public static bool IsProcessElevated
{
get
{
if (IsUacEnabled)
{
IntPtr tokenHandle = IntPtr.Zero;
if (!OpenProcessToken(Process.GetCurrentProcess().Handle, TOKEN_READ, out tokenHandle))
{
throw new ApplicationException("Could not get process token. Win32 Error Code: " +
Marshal.GetLastWin32Error());
}
try
{
TOKEN_ELEVATION_TYPE elevationResult = TOKEN_ELEVATION_TYPE.TokenElevationTypeDefault;
int elevationResultSize = Marshal.SizeOf(typeof(TOKEN_ELEVATION_TYPE));
uint returnedSize = 0;
IntPtr elevationTypePtr = Marshal.AllocHGlobal(elevationResultSize);
try
{
bool success = GetTokenInformation(tokenHandle, TOKEN_INFORMATION_CLASS.TokenElevationType,
elevationTypePtr, (uint) elevationResultSize,
out returnedSize);
if (success)
{
elevationResult = (TOKEN_ELEVATION_TYPE) Marshal.ReadInt32(elevationTypePtr);
bool isProcessAdmin = elevationResult == TOKEN_ELEVATION_TYPE.TokenElevationTypeFull;
return isProcessAdmin;
}
else
{
throw new ApplicationException("Unable to determine the current elevation.");
}
}
finally
{
if (elevationTypePtr != IntPtr.Zero)
Marshal.FreeHGlobal(elevationTypePtr);
}
}
finally
{
if (tokenHandle != IntPtr.Zero)
CloseHandle(tokenHandle);
}
}
else
{
WindowsIdentity identity = WindowsIdentity.GetCurrent();
WindowsPrincipal principal = new WindowsPrincipal(identity);
bool result = principal.IsInRole(WindowsBuiltInRole.Administrator)
|| principal.IsInRole(0x200); //Domain Administrator
return result;
}
}
}
}
CodePlex project UAChelper具有检查UserAccountControl.cpp UserAccountControl::IsUserAdmin中的高程的代码，该代码检查UAC是否已启用，然后检查进程是否已提升。
bool UserAccountControl::IsCurrentProcessElevated::get()
{
return GetProcessTokenElevationType() == TokenElevationTypeFull; //elevated
}
从功能：
int UserAccountControl::GetProcessTokenElevationType()
{
HANDLE hToken;
try
{
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
throw gcnew Win32Exception(GetLastError());
TOKEN_ELEVATION_TYPE elevationType;
DWORD dwSize;
if (!GetTokenInformation(hToken, TokenElevationType, &elevationType, sizeof(elevationType), &dwSize))
throw gcnew Win32Exception(GetLastError());
return elevationType;
}
finally
{
CloseHandle(hToken);
}
}
在.net Framework 4.5中，我找到了另一种适合我的方法。关于以下脚本，可以在这里找到qazxsw poi（德文）
here
在C＃中它看起来像这样：
rem --- Admintest.bat ---
whoami /groups | find "S-1-5-32-544" > nul
if errorlevel 1 goto ende
echo Benutzer %username% ist lokaler Administrator.
:ende
但是在.net <4.5中， private bool IsAdmin
{
get
{
WindowsIdentity identity = WindowsIdentity.GetCurrent();
if (identity != null)
{
WindowsPrincipal principal = new WindowsPrincipal(identity);
List<Claim> list = new List<Claim>(principal.UserClaims);
Claim c = list.Find(p => p.Value.Contains("S-1-5-32-544"));
if (c != null)
return true;
}
return false;
}
}
类不包含WindowsPrincipal属性，我发现无法获取此信息。
使用UserClaims会起作用，但是如果你对管理组SID进行PInvoke TokenElevationType，你的代码也可以在UAC关闭和2000 / XP / 2003时工作，并且还将处理拒绝SID。
CheckTokenMembership()还有一个IsUserAnAdmin()功能，但MSDN表示它可能不会永远存在
使用CheckTokenMembership nuget包：UACHelper
https://www.nuget.org/packages/UACHelper/
有许多其他属性可用于检测用户实际上是否是管理员，或者流程是在UAC虚拟化下运行，还是桌面所有者是流程所有者。 （从有限帐户运行）
查看阅读我的更多信息。
if (UACHelper.IsElevated)
// something
else
// something else
有一些问题。首先，它不会以管理员身份运行任何系统进程（例如在NT-Authority / SYSTEM下）。下面的代码示例修复了所有问题（检测，LocalAdmins，DomainAdmins和LocalSystemAdmins）
如果您只想要当前的Process，请将This Answer替换为pHandle
注意：您必须具有某些权限才能运行它。 （每个AdminProcess都有它们但需要先激活它们，服务默认激活它们）
Process.GetCurrentProcess().Handle我认为还有一个问题。我检查了您提供的解决方案，并且必须说在安装Windows 7并以管理员身份登录时检查不起作用。 Windows永远不会返回进程以提升模式运行的信息。所以顺序：
internal static bool IsProcessElevatedEx(this IntPtr pHandle) {
var token = IntPtr.Zero;
if (!OpenProcessToken(pHandle, MAXIMUM_ALLOWED, ref token))
throw new Win32Exception(Marshal.GetLastWin32Error(), "OpenProcessToken failed");
WindowsIdentity identity = new WindowsIdentity(token);
WindowsPrincipal principal = new WindowsPrincipal(identity);
bool result = principal.IsInRole(WindowsBuiltInRole.Administrator)
|| principal.IsInRole(0x200); //Domain Administrator
CloseHandle(token);
return result;
}
以管理员身份登录时，不会返回true，但该进程具有执行系统操作的所有权限（例如，停止系统服务）。工作顺序是：
if (IsUacEnabled)
return IsProcessInElevatedMode();
return IsUserAdmin();
您应首先检查该进程是否在管理员上下文中运行。附加信息：
if (IsUserAdmin())
return true;
if (IsUacEnabled)
return IsProcessInElevatedMode();
return false;
以前的帖子中描述了所有这些方法。