void OnReleaseRequestState(object o, EventArgs args)
{
Trace.WriteLine("SessionStateModule.OnReleaseRequestState (hash " + this.GetHashCode().ToString("x") + ")");
HttpApplication application = (HttpApplication)o;
HttpContext context = application.Context;
if (!(context.Handler is IRequiresSessionState))
{
return;
}
Trace.WriteLine("\tsessionId == " + container.SessionID);
Trace.WriteLine("\trequest path == " + context.Request.FilePath);
Trace.WriteLine("\tHandler (" + context.Handler + ") requires session state");
try
{
if (!container.IsAbandoned)
{
Trace.WriteLine("\tnot abandoned");
if (!container.IsReadOnly)
{
Trace.WriteLine("\tnot read only, storing and releasing");
handler.SetAndReleaseItemExclusive(context, container.SessionID, storeData, storeLockId, storeIsNew);
}
else
{
Trace.WriteLine("\tread only, releasing");
handler.ReleaseItemExclusive(context, container.SessionID, storeLockId);
}
handler.ResetItemTimeout(context, container.SessionID);
}
else
{
handler.ReleaseItemExclusive(context, container.SessionID, storeLockId);
handler.RemoveItem(context, container.SessionID, storeLockId, storeData);
if (supportsExpiration)
#if TARGET_J2EE
{; }
else
#else
{// Make sure the expiration handler is not called after we will have raised
// the session end event.
handler.SetItemExpireCallback(null);
}
#endif
{ SessionStateUtility.RaiseSessionEnd(container, this, args); }
}
SessionStateUtility.RemoveHttpSessionStateFromContext(context);
}
finally
{
container = null;
storeData = null;
}
}
void OnAcquireRequestState(object o, EventArgs args)
{
Trace.WriteLine("SessionStateModule.OnAcquireRequestState (hash " + this.GetHashCode().ToString("x") + ")");
HttpApplication application = (HttpApplication)o;
HttpContext context = application.Context;
if (!(context.Handler is IRequiresSessionState))
{
Trace.WriteLine("Handler (" + context.Handler + ") does not require session state");
return;
}
bool isReadOnly = (context.Handler is IReadOnlySessionState);
bool supportSessionIDReissue;
if (idManager.InitializeRequest(context, false, out supportSessionIDReissue))
{
return; // Redirected, will come back here in a while
}
string sessionId = idManager.GetSessionID(context);
handler.InitializeRequest(context);
storeData = GetStoreData(context, sessionId, isReadOnly);
storeIsNew = false;
if (storeData == null && !storeLocked)
{
storeIsNew = true;
sessionId = idManager.CreateSessionID(context);
Trace.WriteLine("New session ID allocated: " + sessionId);
bool redirected;
bool cookieAdded;
idManager.SaveSessionID(context, sessionId, out redirected, out cookieAdded);
if (redirected)
{
if (supportSessionIDReissue)
{
handler.CreateUninitializedItem(context, sessionId, (int)config.Timeout.TotalMinutes);
}
context.Response.End();
return;
}
else
{
storeData = handler.CreateNewStoreData(context, (int)config.Timeout.TotalMinutes);
}
}
else if (storeData == null && storeLocked)
{
WaitForStoreUnlock(context, sessionId, isReadOnly);
}
else if (storeData != null &&
!storeLocked &&
storeSessionAction == SessionStateActions.InitializeItem &&
IsCookieLess(context, config))
{
storeData = handler.CreateNewStoreData(context, (int)config.Timeout.TotalMinutes);
}
container = CreateContainer(sessionId, storeData, storeIsNew, isReadOnly);
SessionStateUtility.AddHttpSessionStateToContext(app.Context, container);
if (storeIsNew)
{
OnSessionStart();
HttpSessionState hss = app.Session;
if (hss != null)
{
storeData.Timeout = hss.Timeout;
}
}
// Whenever a container is abandoned, we temporarily disable the expire call back.
// So in this case we are quite sure we have a brand new container, so we make sure it works again.
supportsExpiration = handler.SetItemExpireCallback(OnSessionExpired);
}
public void Init(HttpApplication app)
{
config = (SessionStateSection)WebConfigurationManager.GetSection("system.web/sessionState");
ProviderSettings settings;
switch (config.Mode)
{
case SessionStateMode.Custom:
settings = config.Providers [config.CustomProvider];
if (settings == null)
{
throw new HttpException(String.Format("Cannot find '{0}' provider.", config.CustomProvider));
}
break;
case SessionStateMode.Off:
return;
case SessionStateMode.InProc:
settings = new ProviderSettings(null, typeof(SessionInProcHandler).AssemblyQualifiedName);
break;
case SessionStateMode.SQLServer:
settings = new ProviderSettings(null, typeof(SessionSQLServerHandler).AssemblyQualifiedName);
break;
case SessionStateMode.StateServer:
settings = new ProviderSettings(null, typeof(SessionStateServerHandler).AssemblyQualifiedName);
break;
default:
throw new NotImplementedException(String.Format("The mode '{0}' is not implemented.", config.Mode));
}
handler = (SessionStateStoreProviderBase)ProvidersHelper.InstantiateProvider(settings, typeof(SessionStateStoreProviderBase));
if (String.IsNullOrEmpty(config.SessionIDManagerType))
{
idManager = new SessionIDManager();
}
else
{
Type idManagerType = HttpApplication.LoadType(config.SessionIDManagerType, true);
idManager = (ISessionIDManager)Activator.CreateInstance(idManagerType);
}
try {
idManager.Initialize();
} catch (Exception ex) {
throw new HttpException("Failed to initialize session ID manager.", ex);
}
supportsExpiration = handler.SetItemExpireCallback(OnSessionExpired);
HttpRuntimeSection runtime = HttpRuntime.Section;
executionTimeout = runtime.ExecutionTimeout;
//executionTimeoutMS = executionTimeout.Milliseconds;
this.app = app;
app.BeginRequest += new EventHandler(OnBeginRequest);
app.AcquireRequestState += new EventHandler(OnAcquireRequestState);
app.ReleaseRequestState += new EventHandler(OnReleaseRequestState);
app.EndRequest += new EventHandler(OnEndRequest);
}
public void Init (HttpApplication app)
{
config = (SessionStateSection) WebConfigurationManager.GetSection ("system.web/sessionState");
ProviderSettings settings;
switch (config.Mode) {
case SessionStateMode.Custom:
settings = config.Providers [config.CustomProvider];
if (settings == null)
throw new HttpException (String.Format ("Cannot find '{0}' provider.", config.CustomProvider));
break;
case SessionStateMode.Off:
return;
case SessionStateMode.InProc:
settings = new ProviderSettings (null, typeof (SessionInProcHandler).AssemblyQualifiedName);
break;
case SessionStateMode.SQLServer:
settings = new ProviderSettings (null, typeof (SessionSQLServerHandler).AssemblyQualifiedName);
break;
case SessionStateMode.StateServer:
settings = new ProviderSettings (null, typeof (SessionStateServerHandler).AssemblyQualifiedName);
break;
default:
throw new NotImplementedException (String.Format ("The mode '{0}' is not implemented.", config.Mode));
}
handler = (SessionStateStoreProviderBase) ProvidersHelper.InstantiateProvider (settings, typeof (SessionStateStoreProviderBase));
if (String.IsNullOrEmpty(config.SessionIDManagerType)) {
idManager = new SessionIDManager ();
} else {
Type idManagerType = HttpApplication.LoadType (config.SessionIDManagerType, true);
idManager = (ISessionIDManager)Activator.CreateInstance (idManagerType);
}
try {
idManager.Initialize ();
} catch (Exception ex) {
throw new HttpException ("Failed to initialize session ID manager.", ex);
}
supportsExpiration = handler.SetItemExpireCallback (OnSessionExpired);
HttpRuntimeSection runtime = HttpRuntime.Section;
executionTimeout = runtime.ExecutionTimeout;
//executionTimeoutMS = executionTimeout.Milliseconds;
this.app = app;
app.BeginRequest += new EventHandler (OnBeginRequest);
app.AcquireRequestState += new EventHandler (OnAcquireRequestState);
app.ReleaseRequestState += new EventHandler (OnReleaseRequestState);
app.EndRequest += new EventHandler (OnEndRequest);
}