protected void ReGenerateSessionId()
{
SessionIDManager manager = new SessionIDManager();
string oldId = manager.GetSessionID(System.Web.HttpContext.Current);
string newId = manager.CreateSessionID(System.Web.HttpContext.Current);
bool isAdd = false, isRedir = false;
manager.RemoveSessionID(System.Web.HttpContext.Current);
manager.SaveSessionID(System.Web.HttpContext.Current, newId, out isRedir, out isAdd);
//Store data from old session
HttpApplication ctx = System.Web.HttpContext.Current.ApplicationInstance;
HttpModuleCollection mods = ctx.Modules;
SessionStateModule ssm = (SessionStateModule)mods.Get("Session");
FieldInfo[] fields = ssm.GetType().GetFields(BindingFlags.NonPublic | BindingFlags.Instance);
SessionStateStoreProviderBase store = null;
FieldInfo rqIdField = null, rqLockIdField = null, rqStateNotFoundField = null;
SessionStateStoreData rqItem = null;
foreach (FieldInfo field in fields)
{
if (field.Name.Equals("_store"))
{
store = (SessionStateStoreProviderBase)field.GetValue(ssm);
}
if (field.Name.Equals("_rqId"))
{
rqIdField = field;
}
if (field.Name.Equals("_rqLockId"))
{
rqLockIdField = field;
}
if (field.Name.Equals("_rqSessionStateNotFound"))
{
rqStateNotFoundField = field;
}
if ((field.Name.Equals("_rqItem")))
{
rqItem = (SessionStateStoreData)field.GetValue(ssm);
}
}
object lockId = rqLockIdField.GetValue(ssm);
if ((lockId != null) && (oldId != null))
{
store.RemoveItem(System.Web.HttpContext.Current, oldId, lockId, rqItem);
}
rqStateNotFoundField.SetValue(ssm, true);
rqIdField.SetValue(ssm, newId);
}
/// <summary>
/// sigh - this fixes a f****d up issue, where previewing pages containing code writing to Session,
/// will breake all subsequent page previews regardless of content. Should you obtain the wisdom as
/// to what exactly is the trick here, I'd love to now. I will leave it as "well, this fix the issue
/// and pass testing. Hurray for Harry Potter and magic!". Oh how I loathe doing that :(
/// </summary>
/// <param name="ctx">the Http context that will be shared between master and child process</param>
private static void AllowChildRequestSessionAccess(HttpContext ctx)
{
SessionIDManager manager = new SessionIDManager();
string oldId = manager.GetSessionID(ctx);
string newId = manager.CreateSessionID(ctx);
bool isAdd = false, isRedir = false;
manager.SaveSessionID(ctx, newId, out isRedir, out isAdd);
HttpApplication ctx2 = (HttpApplication)HttpContext.Current.ApplicationInstance;
HttpModuleCollection mods = ctx2.Modules;
SessionStateModule ssm = (SessionStateModule)mods.Get("Session");
System.Reflection.FieldInfo[] fields = ssm.GetType().GetFields(BindingFlags.NonPublic | BindingFlags.Instance);
SessionStateStoreProviderBase store = null;
System.Reflection.FieldInfo rqIdField = null, rqLockIdField = null, rqStateNotFoundField = null;
foreach (System.Reflection.FieldInfo field in fields)
{
if (field.Name.Equals("_store"))
{
store = (SessionStateStoreProviderBase)field.GetValue(ssm);
}
if (field.Name.Equals("_rqId"))
{
rqIdField = field;
}
if (field.Name.Equals("_rqLockId"))
{
rqLockIdField = field;
}
if (field.Name.Equals("_rqSessionStateNotFound"))
{
rqStateNotFoundField = field;
}
}
object lockId = rqLockIdField.GetValue(ssm);
if ((lockId != null) && (oldId != null))
{
store.ReleaseItemExclusive(ctx, oldId, lockId);
}
rqStateNotFoundField.SetValue(ssm, true);
rqIdField.SetValue(ssm, newId);
}
private void SetReadOnly(SessionStateModule module)
{
FieldInfo readOnly = module.GetType().GetField("_rqReadonly", BindingFlags.Instance | BindingFlags.NonPublic);
readOnly.SetValue(module, true);
}
private SessionStateStoreProviderBase GetProvider(SessionStateModule module)
{
FieldInfo store = module.GetType().GetField("_store", BindingFlags.Instance | BindingFlags.NonPublic);
return((SessionStateStoreProviderBase)store.GetValue(module));
}
private bool GetStateNotFound(SessionStateModule module)
{
FieldInfo stateNotFound = module.GetType().GetField("_rqSessionStateNotFound", BindingFlags.Instance | BindingFlags.NonPublic);
return((bool)stateNotFound.GetValue(module));
}
private SessionStateStoreData GetStoreData(SessionStateModule module)
{
FieldInfo item = module.GetType().GetField("_rqItem", BindingFlags.Instance | BindingFlags.NonPublic);
return((SessionStateStoreData)item.GetValue(module));
}
private object GetLockId(SessionStateModule module)
{
FieldInfo lockId = module.GetType().GetField("_rqLockId", BindingFlags.Instance | BindingFlags.NonPublic);
return(lockId.GetValue(module));
}