我想将文件复制到网络驱动器。但是它显示错误:C:\ pdf.zip有denide(copytonetworkingdrive函数)。 所以我想更改文件ACL(copyfileto function)。
问题
1。)我无法访问c:\ pdf.zip
2.。)我无法将文件c:\复制到网络驱动器。
3.。)我无法更改文件访问控制。
4.。我无法访问\\ networkingdrive \\ blablabla $
(我已通过编程登录[查看logonuser功能])
我开发的是Windows 7 64位,VS C#2012,.Net Framework 4.0。
using Ionic.Zip;
using System.Security.Principal;
using System.Security.Permissions;
using System.Security.AccessControl;
using System.Management;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;
我的代码:
private static void copyfileto(string fin, string fout)
{
int i;
FileStream fsin, fsout;
*FileSecurity files = File.GetAccessControl(fin);*
WindowsIdentity self = System.Security.Principal.WindowsIdentity.GetCurrent();
FileSystemAccessRule rule = new FileSystemAccessRule( self.Name, FileSystemRights.FullControl,AccessControlType.Allow);
AuthorizationRuleCollection acl = files.GetAccessRules(true,true, typeof(System.Security.Principal.NTAccount));
files.AddAccessRule( rule );
fsin = new FileStream( fin ,FileMode.Open);
fsout = new FileStream( fout ,FileMode.Create);
do
{ i = fsin.ReadByte() ;
if ( i != -1 ) fsout.WriteByte((byte) i );
} while ( i != -1);
fsin.Close();
fsout.Close();
}
private void copytonetworkdrive()
{
AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);
IntPtr hTokenLocal;
if (LogonUser(frm_main.myapp.gl_login_user_for_attachment.ToString(),
frm_main.myapp.gl_folder_attachment_server.ToString(),
frm_main.myapp.gl_pass_user_for_attachment.ToString(), LOGON32_LOGON_NETWORK, LOGON32_PROVIDER_DEFAULT, out hTokenLocal))
{
//if (hToken != IntPtr.Zero) CloseHandle(hToken);
//if (hTokenDuplicate != IntPtr.Zero) CloseHandle(hTokenDuplicate);
WindowsIdentity identity = new WindowsIdentity(hTokenLocal);
WindowsImpersonationContext context = identity.Impersonate();
copyfileto("C:\\Pdf.zip",frm_main.myapp.gl_folder_attachment_server.ToString() +@"ZIP\quotation\Pdf.zip");
}
}
在 FileSecurity files = File.GetAccessControl(fin); 中 错误:
System.UnauthorizedAccessException was unhandled
HResult=-2147024891
Message=Attempted to perform an unauthorized operation.
Source=mscorlib
StackTrace:
at System.Security.AccessControl.Win32.GetSecurityInfo(ResourceType resourceType, String name, SafeHandle handle, AccessControlSections accessControlSections, RawSecurityDescriptor& resultSd)
at System.Security.AccessControl.NativeObjectSecurity.CreateInternal(ResourceType resourceType, Boolean isContainer, String name, SafeHandle handle, AccessControlSections includeSections, Boolean createByName, ExceptionFromErrorCode exceptionFromErrorCode, Object exceptionContext)
at System.Security.AccessControl.FileSystemSecurity..ctor(Boolean isContainer, String name, AccessControlSections includeSections, Boolean isDirectory)
...
请帮助,谢谢。