private static DateTime?GetUsersLogonTimestamp(DprCurrentUsers user)
{
if (string.IsNullOrEmpty(user.UserName) || string.IsNullOrEmpty(user.Domain) || Win32.WellKnownSids.ContainsKey(user.Sid))
{
return(null);
}
WmiHelpers.ForEachWithScope(user.ComputerName, @"SELECT * FROM Win32_LogonSession", (obj, scope) => {
try {
var roq = new RelatedObjectQuery(string.Format(@"associators of {{Win32_LogonSession.LogonId='{0}'}} WHERE AssocClass = Win32_LoggedOnUser", WmiHelpers.GetString(obj, @"LogonId")));
using (var searcher = new ManagementObjectSearcher(scope, roq)) {
foreach (var mobObj in searcher.Get( ))
{
Helpers.AssertNotNull(mobObj, @"WMI Error, null value returned.");
var mob = (ManagementObject)mobObj;
var name = WmiHelpers.GetString(mob, @"Name");
var domain = WmiHelpers.GetString(mob, @"Domain");
if (!name.Equals(user.UserName) || !domain.Equals(user.Domain))
{
continue;
}
user.LastLogon = WmiHelpers.GetNullableDate(obj, @"StartTime");
return(false); // Found, stop loop
}
}
} catch (ManagementException ex) {
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"Error finding last logon on {0} for {1}\{2}\n{3}", user.ComputerName, user.Domain, user.UserName, ex.Message);
}
return(true);
}, false, false);
return(user.LastLogon);
}
private void SetupCurrentUsersTab( )
{
AddDataPageToTabControl("Current Users", tcMain, new DataPageControl <DprCurrentUsers>(this)
{
GenerateLookupMenu = false,
QueryDataCb = DprCurrentUsers.Generate,
SetupColumnsCb = delegate(DataGridView dgv) {
DgvHelpers.GenerateAllColumns(dgv, typeof(DprCurrentUsers));
DgvHelpers.SetColumnHeader(DgvHelpers.GetColumn(dgv, @"ConnectionStatusString"), @"Connection Status");
MoveStatusColumnsFirst(dgv);
foreach (var actionName in DprCurrentUsers.SetupActions( ).Keys)
{
DgvHelpers.AddButtonColumn(dgv, actionName);
}
}
});
}
private static void GetUserAccountFromSid(ref DprCurrentUsers user)
{
var binSid = Win32.StringToBinarySid(user.Sid);
if (null == binSid)
{
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"DgvHelpers - GetNetworkUsers - Error Resolving SID");
user.ConnectionStatus = ConnectionStatuses.ErrorResolvingSid;
return;
}
var name = new StringBuilder( );
var cchName = (uint)name.Capacity;
var referencedDomainName = new StringBuilder( );
var cchReferencedDomainName = (uint)referencedDomainName.Capacity;
Win32.SidNameUse sidUse;
var err = Win32.Error.Success;
if (!Win32.LookupAccountSid(null, binSid, name, ref cchName, referencedDomainName, ref cchReferencedDomainName, out sidUse))
{
err = (Win32.Error)Marshal.GetLastWin32Error( );
if (Win32.Error.ErrorInsufficientBuffer == err)
{
name.EnsureCapacity((int)cchName);
referencedDomainName.EnsureCapacity((int)cchReferencedDomainName);
err = Win32.Error.Success;
if (!Win32.LookupAccountSid(null, binSid, name, ref cchName, referencedDomainName, ref cchReferencedDomainName, out sidUse))
{
err = (Win32.Error)Marshal.GetLastWin32Error( );
}
}
}
if (Win32.Error.Success == err)
{
user.UserName = name.ToString( );
user.Domain = referencedDomainName.ToString( );
}
else
{
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"DgvHelpers - GetNetworkUsers - Error Resolving SID - Error ", err);
user.ConnectionStatus = ConnectionStatuses.ErrorResolvingSid;
}
}
private static void GetLocallyLoggedOnUsers(string computerName, SyncList.SyncList <DprCurrentUsers> result)
{
var usersList = new List <DprCurrentUsers>( );
using (var regHku = RegistryKey.OpenRemoteBaseKey(RegistryHive.Users, string.Empty)) {
foreach (var currentSid in regHku.GetSubKeyNames( ).Where(IsSid))
{
var cu = new DprCurrentUsers(computerName)
{
Sid = currentSid
};
try {
if (Win32.WellKnownSids.ContainsKey(currentSid))
{
cu.Domain = computerName; // Local account
cu.UserName = Win32.WellKnownSids[currentSid];
}
else
{
GetUserAccountFromSid(ref cu);
}
cu.ProfileFolder = RegistryHelpers.GetString(computerName, RegistryHive.LocalMachine, string.Format(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\{0}", currentSid), @"ProfileImagePath");
cu.LastLogon = GetUsersLogonTimestamp(cu);
} catch (Exception ex) {
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"Exception - {0} - {1}", ex.TargetSite, ex.Message);
cu = new DprCurrentUsers(computerName, ConnectionStatuses.Error)
{
Sid = currentSid
};
}
cu.LogonType = LogonTypes.Local;
usersList.Add(cu);
}
}
result.AddRange(usersList);
}
private static Win32.Error GetNetworkUsers(string computerName, ref SyncList.SyncList <DprCurrentUsers> result)
{
Win32.Error res;
var er = 0;
var tr = 0;
var resume = 0;
var buffer = IntPtr.Zero;
var usersList = new List <DprCurrentUsers>( );
do
{
try {
res = (Win32.Error)Win32.NetSessionEnum(computerName, null, null, 502, out buffer, -1, ref er, ref tr, ref resume);
if (res == Win32.Error.ErrorMoreData || res == Win32.Error.Success)
{
var bufferPtrInt = buffer.ToInt32( );
for (var i = 0; i < er; i++)
{
var sessionInfo = (Win32.SessionInfo502)Marshal.PtrToStructure(new IntPtr(bufferPtrInt), typeof(Win32.SessionInfo502));
var cu = new DprCurrentUsers(computerName)
{
UserName = sessionInfo.userName, LastLogon = DateTime.Now.AddSeconds(-sessionInfo.logonDuration), LogonType = LogonTypes.Share
};
usersList.Add(cu);
bufferPtrInt += Marshal.SizeOf(typeof(Win32.SessionInfo502));
}
}
else
{
switch (res)
{
case Win32.Error.ErrorAccessDenied:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Access Denied: {0}", computerName);
break;
case Win32.Error.ErrorNotEnoughMemory:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Not Enough Memory: {0}", computerName);
break;
case Win32.Error.ErrorBadNetpath:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Bad Network Path: {0}", computerName);
break;
case Win32.Error.ErrorNetworkBusy:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Network Busy: {0}", computerName);
break;
case Win32.Error.ErrorInvalidParameter:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Invalid Parameter: {0}", computerName);
break;
case Win32.Error.ErrorInsufficientBuffer:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Insufficient Buff: {0}", computerName);
break;
case Win32.Error.ErrorInvalidLevel:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Invalid Level: {0}", computerName);
break;
case Win32.Error.ErrorExtendedError:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Exended Error: {0}", computerName);
break;
case Win32.Error.ErrorNoNetwork:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: No Network: {0}", computerName);
break;
case Win32.Error.ErrorInvalidHandleState:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Invalid Handle State: {0}", computerName);
break;
case Win32.Error.NerrBase:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: NERR_BASE: {0}", computerName);
break;
case Win32.Error.NerrUnknownDevDir:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Unknown Device Directory: {0}", computerName);
break;
case Win32.Error.NerrDuplicateShare:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Duplicate Share: {0}", computerName);
break;
case Win32.Error.NerrBufTooSmall:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: Buffer too small: {0}", computerName);
break;
case Win32.Error.ErrorNoBrowserServersFound:
GlobalLogging.WriteLine(Logging.LogSeverity.Error, @"GetNetworkUsers: No Browser Servers Found: {0}", computerName);
break;
}
return(res);
}
} finally {
if (IntPtr.Zero != buffer)
{
Win32.NetApiBufferFree(buffer);
}
}
} while(res == Win32.Error.ErrorMoreData);
result.AddRange(usersList);
return(Win32.Error.Success);
}
private static void GetLocallyLoggedOnUsers( string computerName, SyncList.SyncList<DprCurrentUsers> result ) {
var usersList = new List<DprCurrentUsers>( );
using( var regHku = RegistryKey.OpenRemoteBaseKey( RegistryHive.Users, string.Empty ) ) {
foreach( var currentSid in regHku.GetSubKeyNames( ).Where( IsSid ) ) {
var cu = new DprCurrentUsers( computerName ) { Sid = currentSid };
try {
if( Win32.WellKnownSids.ContainsKey( currentSid ) ) {
cu.Domain = computerName; // Local account
cu.UserName = Win32.WellKnownSids[currentSid];
} else {
GetUserAccountFromSid( ref cu );
}
cu.ProfileFolder = RegistryHelpers.GetString( computerName, RegistryHive.LocalMachine, string.Format( @"SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\{0}", currentSid ), @"ProfileImagePath" );
cu.LastLogon = GetUsersLogonTimestamp( cu );
} catch( Exception ex ) {
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"Exception - {0} - {1}", ex.TargetSite, ex.Message );
cu = new DprCurrentUsers( computerName, ConnectionStatuses.Error ) { Sid = currentSid };
}
cu.LogonType = LogonTypes.Local;
usersList.Add( cu );
}
}
result.AddRange( usersList );
}
private static DateTime? GetUsersLogonTimestamp( DprCurrentUsers user ) {
if( string.IsNullOrEmpty( user.UserName ) || string.IsNullOrEmpty( user.Domain ) || Win32.WellKnownSids.ContainsKey( user.Sid ) ) {
return null;
}
WmiHelpers.ForEachWithScope( user.ComputerName, @"SELECT * FROM Win32_LogonSession", ( obj, scope ) => {
try {
var roq = new RelatedObjectQuery( string.Format( @"associators of {{Win32_LogonSession.LogonId='{0}'}} WHERE AssocClass = Win32_LoggedOnUser", WmiHelpers.GetString( obj, @"LogonId" ) ) );
using( var searcher = new ManagementObjectSearcher( scope, roq ) ) {
foreach( var mobObj in searcher.Get( ) ) {
Helpers.AssertNotNull( mobObj, @"WMI Error, null value returned." );
var mob = (ManagementObject)mobObj;
var name = WmiHelpers.GetString( mob, @"Name" );
var domain = WmiHelpers.GetString( mob, @"Domain" );
if( !name.Equals( user.UserName ) || !domain.Equals( user.Domain ) ) {
continue;
}
user.LastLogon = WmiHelpers.GetNullableDate( obj, @"StartTime" );
return false; // Found, stop loop
}
}
} catch( ManagementException ex ) {
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"Error finding last logon on {0} for {1}\{2}\n{3}", user.ComputerName, user.Domain, user.UserName, ex.Message );
}
return true;
}, false, false );
return user.LastLogon;
}
private static void GetUserAccountFromSid( ref DprCurrentUsers user ) {
var binSid = Win32.StringToBinarySid( user.Sid );
if( null == binSid ) {
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"DgvHelpers - GetNetworkUsers - Error Resolving SID" );
user.ConnectionStatus = ConnectionStatuses.ErrorResolvingSid;
return;
}
var name = new StringBuilder( );
var cchName = (uint)name.Capacity;
var referencedDomainName = new StringBuilder( );
var cchReferencedDomainName = (uint)referencedDomainName.Capacity;
Win32.SidNameUse sidUse;
var err = Win32.Error.Success;
if( !Win32.LookupAccountSid( null, binSid, name, ref cchName, referencedDomainName, ref cchReferencedDomainName, out sidUse ) ) {
err = (Win32.Error)Marshal.GetLastWin32Error( );
if( Win32.Error.ErrorInsufficientBuffer == err ) {
name.EnsureCapacity( (int)cchName );
referencedDomainName.EnsureCapacity( (int)cchReferencedDomainName );
err = Win32.Error.Success;
if( !Win32.LookupAccountSid( null, binSid, name, ref cchName, referencedDomainName, ref cchReferencedDomainName, out sidUse ) ) {
err = (Win32.Error)Marshal.GetLastWin32Error( );
}
}
}
if( Win32.Error.Success == err ) {
user.UserName = name.ToString( );
user.Domain = referencedDomainName.ToString( );
} else {
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"DgvHelpers - GetNetworkUsers - Error Resolving SID - Error ", err );
user.ConnectionStatus = ConnectionStatuses.ErrorResolvingSid;
}
}
private static Win32.Error GetNetworkUsers( string computerName, ref SyncList.SyncList<DprCurrentUsers> result ) {
Win32.Error res;
var er = 0;
var tr = 0;
var resume = 0;
var buffer = IntPtr.Zero;
var usersList = new List<DprCurrentUsers>( );
do {
try {
res = (Win32.Error)Win32.NetSessionEnum( computerName, null, null, 502, out buffer, -1, ref er, ref tr, ref resume );
if( res == Win32.Error.ErrorMoreData || res == Win32.Error.Success ) {
var bufferPtrInt = buffer.ToInt32( );
for( var i = 0; i < er; i++ ) {
var sessionInfo = (Win32.SessionInfo502)Marshal.PtrToStructure( new IntPtr( bufferPtrInt ), typeof( Win32.SessionInfo502 ) );
var cu = new DprCurrentUsers( computerName ) {
UserName = sessionInfo.userName, LastLogon = DateTime.Now.AddSeconds( -sessionInfo.logonDuration ), LogonType = LogonTypes.Share
};
usersList.Add( cu );
bufferPtrInt += Marshal.SizeOf( typeof( Win32.SessionInfo502 ) );
}
} else {
switch( res ) {
case Win32.Error.ErrorAccessDenied:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Access Denied: {0}", computerName );
break;
case Win32.Error.ErrorNotEnoughMemory:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Not Enough Memory: {0}", computerName );
break;
case Win32.Error.ErrorBadNetpath:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Bad Network Path: {0}", computerName );
break;
case Win32.Error.ErrorNetworkBusy:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Network Busy: {0}", computerName );
break;
case Win32.Error.ErrorInvalidParameter:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Invalid Parameter: {0}", computerName );
break;
case Win32.Error.ErrorInsufficientBuffer:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Insufficient Buff: {0}", computerName );
break;
case Win32.Error.ErrorInvalidLevel:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Invalid Level: {0}", computerName );
break;
case Win32.Error.ErrorExtendedError:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Exended Error: {0}", computerName );
break;
case Win32.Error.ErrorNoNetwork:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: No Network: {0}", computerName );
break;
case Win32.Error.ErrorInvalidHandleState:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Invalid Handle State: {0}", computerName );
break;
case Win32.Error.NerrBase:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: NERR_BASE: {0}", computerName );
break;
case Win32.Error.NerrUnknownDevDir:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Unknown Device Directory: {0}", computerName );
break;
case Win32.Error.NerrDuplicateShare:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Duplicate Share: {0}", computerName );
break;
case Win32.Error.NerrBufTooSmall:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: Buffer too small: {0}", computerName );
break;
case Win32.Error.ErrorNoBrowserServersFound:
GlobalLogging.WriteLine( Logging.LogSeverity.Error, @"GetNetworkUsers: No Browser Servers Found: {0}", computerName );
break;
}
return res;
}
} finally {
if( IntPtr.Zero != buffer ) {
Win32.NetApiBufferFree( buffer );
}
}
} while( res == Win32.Error.ErrorMoreData );
result.AddRange( usersList );
return Win32.Error.Success;
}