//Processes accounting on logon/logoff
public void SessionChange(System.ServiceProcess.SessionChangeDescription changeDescription, pGina.Shared.Types.SessionProperties properties)
{
if (changeDescription.Reason != System.ServiceProcess.SessionChangeReason.SessionLogon &&
changeDescription.Reason != System.ServiceProcess.SessionChangeReason.SessionLogoff)
{
//m_logger.DebugFormat("Not logging on or off for this session change call ({0})... exiting.", changeDescription.Reason);
return;
}
if (properties == null)
{
//m_logger.DebugFormat("No session properties available. This account does not appear to be managed by pGina. Exiting SessionChange()");
return;
}
if (!(bool)Settings.Store.EnableAcct)
{
m_logger.Debug("Session Change stage set on RADIUS plugin but accounting is not enabled in plugin settings.");
return;
}
//Determine username (may change depending on value of UseModifiedName setting)
string username = null;
UserInformation ui = properties.GetTrackedSingle <UserInformation>();
if (ui == null)
{
//m_logger.DebugFormat("No userinformation for this session logoff... exiting...");
return;
}
if ((bool)Settings.Store.UseModifiedName)
{
username = ui.Username;
}
else
{
username = ui.OriginalUsername;
}
Session session = null;
//User is logging on
if (changeDescription.Reason == System.ServiceProcess.SessionChangeReason.SessionLogon)
{
lock (m_sessionManager)
{
//Check if session information is already available for this id
if (!m_sessionManager.Keys.Contains(properties.Id))
{
//No session info - must have authed with something other than RADIUS.
//m_logger.DebugFormat("RADIUS Accounting Logon: Unable to find session for {0} with GUID {1}", username, properties.Id);
if (!(bool)Settings.Store.AcctingForAllUsers)
{
//m_logger.Debug("Accounting for non-RADIUS users is disabled. Exiting.");
return;
}
RADIUSClient client = GetClient();
session = new Session(properties.Id, username, client);
m_sessionManager.Add(properties.Id, session);
//Check forced interim-update setting
if ((bool)Settings.Store.SendInterimUpdates && (bool)Settings.Store.ForceInterimUpdates)
{
int interval = (int)Settings.Store.InterimUpdateTime;
session.SetInterimUpdate(interval, InterimUpdatesCallback);
}
}
else
{
session = m_sessionManager[properties.Id];
}
}
//Determine which plugin authenticated the user (if any)
PluginActivityInformation pai = properties.GetTrackedSingle <PluginActivityInformation>();
Packet.Acct_Authentic authSource = Packet.Acct_Authentic.Not_Specified;
IEnumerable <Guid> authPlugins = pai.GetAuthenticationPlugins();
Guid LocalMachinePluginGuid = new Guid("{12FA152D-A2E3-4C8D-9535-5DCD49DFCB6D}");
foreach (Guid guid in authPlugins)
{
if (pai.GetAuthenticationResult(guid).Success)
{
if (guid == SimpleUuid)
{
authSource = Packet.Acct_Authentic.RADIUS;
}
else if (guid == LocalMachinePluginGuid)
{
authSource = Packet.Acct_Authentic.Local;
}
else //Not RADIUS, not Local, must be some other auth plugin
{
authSource = Packet.Acct_Authentic.Remote;
}
break;
}
}
//We can finally start the accounting process
try
{
lock (session)
{
session.windowsSessionId = changeDescription.SessionId; //Grab session ID now that we're authenticated
session.username = username; //Accting username may have changed depending on 'Use Modified username for accounting option'
session.client.startAccounting(username, authSource);
//m_logger.DebugFormat("Successfully completed accounting start process...");
}
}
catch (Exception e)
{
m_logger.Error("Error occurred while starting accounting.", e);
}
}
//User is logging off
else if (changeDescription.Reason == System.ServiceProcess.SessionChangeReason.SessionLogoff)
{
lock (m_sessionManager)
{
if (m_sessionManager.Keys.Contains(properties.Id))
{
session = m_sessionManager[properties.Id];
}
else
{
//m_logger.DebugFormat("Users {0} is logging off, but no RADIUS session information is available for session ID {1}.", username, properties.Id);
return;
}
//Remove the session from the session manager
m_sessionManager.Remove(properties.Id);
}
lock (session)
{
//Disbale any active callbacks for this session
session.disableCallbacks();
session.active = false;
//Assume normal logout if no other terminate reason is listed.
if (session.terminate_cause == null)
{
session.terminate_cause = Packet.Acct_Terminate_Cause.User_Request;
}
try
{
//m_logger.DebugFormat("About to send accounting stop packet. Session has been active {0} seconds.", (DateTime.Now - session.client.accountingStartTime).TotalSeconds);
session.client.stopAccounting(session.username, session.terminate_cause);
}
catch (RADIUSException re)
{
m_logger.DebugFormat("Unable to send accounting stop message for user {0} with ID {1}. Message: {2}", session.username, session.id, re.Message);
}
}
}
}
//Processes accounting on logon/logoff
public void SessionChange(System.ServiceProcess.SessionChangeDescription changeDescription, pGina.Shared.Types.SessionProperties properties)
{
m_logger.DebugFormat("SessionChange({0})", properties.Id.ToString());
string username = null;
if ((bool)Settings.Store.UseModifiedName)
{
username = properties.GetTrackedSingle <UserInformation>().Username;
}
else
{
username = properties.GetTrackedSingle <UserInformation>().OriginalUsername;
}
if (changeDescription.Reason == System.ServiceProcess.SessionChangeReason.SessionLogon)
{
//Create a new unique id for this accounting session and store it
String sessionId = Guid.NewGuid().ToString();
lock (sessionIDLock)
{
sessionIDs.Add(username, sessionId);
}
//Determine which plugin authenticated the user (if any)
PluginActivityInformation pai = properties.GetTrackedSingle <PluginActivityInformation>();
Packet.Acct_AuthenticType authSource = Packet.Acct_AuthenticType.Not_Specified;
IEnumerable <Guid> authPlugins = pai.GetAuthenticationPlugins();
Guid LocalMachinePluginGuid = new Guid("{12FA152D-A2E3-4C8D-9535-5DCD49DFCB6D}");
foreach (Guid guid in authPlugins)
{
if (pai.GetAuthenticationResult(guid).Success)
{
if (guid == SimpleUuid)
{
authSource = Packet.Acct_AuthenticType.RADIUS;
}
else if (guid == LocalMachinePluginGuid)
{
authSource = Packet.Acct_AuthenticType.Local;
}
else
{
authSource = Packet.Acct_AuthenticType.Remote;
}
break;
}
}
try
{
RADIUSClient client = GetClient(sessionId);
client.startAccounting(username, authSource);
}
catch (Exception e)
{
m_logger.Error("Error occurred while starting accounting.", e);
}
}
else if (changeDescription.Reason == System.ServiceProcess.SessionChangeReason.SessionLogoff)
{
//Check if guid was stored from accounting start request (if not, no point in sending a stop request)
string sessionId = null;
lock (sessionIDLock)
{
sessionId = sessionIDs.ContainsKey(username) ? sessionIDs[username] : null;
if (sessionId == null)
{
m_logger.ErrorFormat("Error sending accounting stop request. No guid available for {0}", username);
return;
} //Remove the session id since we're logging off
sessionIDs.Remove(username);
}
try
{
RADIUSClient client = GetClient(sessionId);
client.stopAccounting(username, Packet.Acct_Terminate_CauseType.User_Request);
}
catch (Exception e)
{
m_logger.Error("Error occurred while stopping accounting.", e);
return;
}
}
}