public static bool CanIWrite(FileInfo fileInfo)
{
// this will return true if write or modify or take ownership or any of those other good perms are available.
CurrentUserSecurity currentUserSecurity = new CurrentUserSecurity();
FileSystemRights[] fsRights =
{
FileSystemRights.Write,
FileSystemRights.Modify,
FileSystemRights.FullControl,
FileSystemRights.TakeOwnership,
FileSystemRights.ChangePermissions,
FileSystemRights.AppendData,
FileSystemRights.WriteData
};
bool writeRight = false;
foreach (FileSystemRights fsRight in fsRights)
{
try
{
if (currentUserSecurity.HasAccess(fileInfo, fsRight))
{
writeRight = true;
}
}
catch (UnauthorizedAccessException)
{
return(false);
}
}
return(writeRight);
}
public static bool CanIRead(FileInfo fileInfo)
{
// this will return true if file read perm is available.
CurrentUserSecurity currentUserSecurity = new CurrentUserSecurity();
FileSystemRights[] fsRights =
{
FileSystemRights.Read,
FileSystemRights.ReadAndExecute,
FileSystemRights.ReadData
};
bool readRight = false;
foreach (FileSystemRights fsRight in fsRights)
{
try
{
if (currentUserSecurity.HasAccess(fileInfo, fsRight))
{
readRight = true;
}
}
catch (UnauthorizedAccessException)
{
return(false);
}
}
return(readRight);
}
