*/
public static boolean accessCheck(File file, AccessCheckPermission permissionToCheck) {
boolean hasAccess = false;
final Memory securityDescriptorMemoryPointer = getSecurityDescriptorForFile(file.getAbsolutePath().replaceAll("/", "\\"));
HANDLEByReference openedAccessToken = null;
final HANDLEByReference duplicatedToken = new HANDLEByReference();
try{
openedAccessToken = new HANDLEByReference();
final int desireAccess = TOKEN_IMPERSONATE | TOKEN_QUERY | TOKEN_DUPLICATE | STANDARD_RIGHTS_READ;
if(!Advapi32.INSTANCE.OpenProcessToken(Kernel32.INSTANCE.GetCurrentProcess(), desireAccess, openedAccessToken)) {
throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
}
if(!Advapi32.INSTANCE.DuplicateToken(openedAccessToken.getValue(), SECURITY_IMPERSONATION_LEVEL.SecurityImpersonation, duplicatedToken)) {
throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
}
final GENERIC_MAPPING mapping = new GENERIC_MAPPING();
mapping.genericRead = new DWORD(FILE_GENERIC_READ);
mapping.genericWrite = new DWORD(FILE_GENERIC_WRITE);
mapping.genericExecute = new DWORD(FILE_GENERIC_EXECUTE);
mapping.genericAll = new DWORD(FILE_ALL_ACCESS);
final DWORDByReference rights = new DWORDByReference(new DWORD(permissionToCheck.getCode()));
Advapi32.INSTANCE.MapGenericMask(rights, mapping);
final PRIVILEGE_SET privileges = new PRIVILEGE_SET(1);
privileges.PrivilegeCount = new DWORD(0);
final DWORDByReference privilegeLength = new DWORDByReference(new DWORD(privileges.size()));
final DWORDByReference grantedAccess = new DWORDByReference();
final BOOLByReference result = new BOOLByReference();
if(!Advapi32.INSTANCE.AccessCheck(securityDescriptorMemoryPointer,
duplicatedToken.getValue(),
rights.getValue(),
mapping,
privileges, privilegeLength, grantedAccess, result)) {
throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
}
hasAccess = result.getValue().booleanValue();
} finally {
if(openedAccessToken != null && openedAccessToken.getValue() != null) {
Kernel32.INSTANCE.CloseHandle(openedAccessToken.getValue());
}
if(duplicatedToken != null && duplicatedToken.getValue() != null) {
Kernel32.INSTANCE.CloseHandle(duplicatedToken.getValue());
}
if(securityDescriptorMemoryPointer != null) {
securityDescriptorMemoryPointer.clear();
}