如果可以从 Web 服务中实现,您需要执行以下两项操作之一:
- 使用模拟来执行控制台应用程序
- 在 IIS 中使用可以执行应用程序的帐户。
假设上述其中一项工作正常并且您能够执行控制台应用程序,那么您还需要研究一些其他事项:
- 您可能需要在 IIS 的主目录选项卡下更改执行权限
- 您可能需要取消控制台对话框,因为这可能会引发一些标志
我以前必须这样做一次,而标准模拟对我不起作用。我不得不以不同的方式处理模仿。我不知道你是否会遇到和我一样的障碍,但这是我创建的一个类,用于通过 Windows API 以编程方式模拟:
编辑
更改为实现 IDisposable 的实例类 - 感谢@John Saunders
添加了一个重载的构造函数,以便于使用 using 语句实现,并添加了布尔属性 Impersonating 以检查实例当前是否正在模拟。还有 BeginImpersonationContext 和 EndImpersonationContext 方法可供替代使用。
/// <summary>
/// Leverages the Windows API (advapi32.dll) to programmatically impersonate a user.
/// </summary>
public class ImpersonationContext : IDisposable
{
#region constants
private const int LOGON32_LOGON_INTERACTIVE = 2;
private const int LOGON32_PROVIDER_DEFAULT = 0;
#endregion
#region global variables
private WindowsImpersonationContext impersonationContext;
private bool impersonating;
#endregion
#region unmanaged code
[DllImport("advapi32.dll")]
private static extern int LogonUserA(String lpszUserName, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int DuplicateToken(IntPtr hToken, int impersonationLevel, ref IntPtr hNewToken);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern bool RevertToSelf();
[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
private static extern bool CloseHandle(IntPtr handle);
#endregion
#region constructors
public ImpersonationContext()
{
impersonating = false;
}
/// <summary>
/// Overloaded constructor and begins impersonating.
/// </summary>
public ImpersonationContext(string userName, string password, string domain)
{
this.BeginImpersonationContext(userName, password, domain);
}
#endregion
#region impersonation methods
/// <summary>
/// Begins the impersonation context for the specified user.
/// </summary>
/// <remarks>Don't call this method if you used the overloaded constructor.</remarks>
public void BeginImpersonationContext(string userName, string password, string domain)
{
//initialize token and duplicate variables
IntPtr token = IntPtr.Zero;
IntPtr tokenDuplicate = IntPtr.Zero;
if (RevertToSelf())
{
if (LogonUserA(userName, domain, password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, ref token) != 0)
{
if (DuplicateToken(token, 2, ref tokenDuplicate) != 0)
{
using (WindowsIdentity tempWindowsIdentity = new WindowsIdentity(tokenDuplicate))
{
//begin the impersonation context and mark impersonating true
impersonationContext = tempWindowsIdentity.Impersonate();
impersonating = true;
}
}
}
}
//close the handle to the account token
if (token != IntPtr.Zero)
CloseHandle(token);
//close the handle to the duplicated account token
if (tokenDuplicate != IntPtr.Zero)
CloseHandle(tokenDuplicate);
}
/// <summary>
/// Ends the current impersonation context.
/// </summary>
public void EndImpersonationContext()
{
//if the context exists undo it and dispose of the object
if (impersonationContext != null)
{
//end the impersonation context and dispose of the object
impersonationContext.Undo();
impersonationContext.Dispose();
}
//mark the impersonation flag false
impersonating = false;
}
#endregion
#region properties
/// <summary>
/// Gets a value indicating whether the impersonation is currently active.
/// </summary>
public bool Impersonating
{
get
{
return impersonating;
}
}
#endregion
#region IDisposable implementation
~ImpersonationContext()
{
Dispose(false);
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
if (impersonationContext != null)
{
impersonationContext.Undo();
impersonationContext.Dispose();
}
}
}
#endregion
}
编辑
最后,这里是一个如何实现类的例子:
using (ImpersonationContext context = new ImpersonationContext("user", "password", "domain"))
{
if (context.Impersonating)
{
Process.Start(@"/Support/SendFax/SendFax.exe");
}
}