private bool ValidateSession(CHttpRequest arequest)
{
Cookie sessionCookie = arequest.Request.Cookies["sessionId"];
CHttpSession sessionObject = null;
if ((sessionCookie == null) || ((sessionCookie != null) && (sessionCookie.Value == "")))
{
sessionObject = arequest.Server.ServerSessions.GetSession("");
arequest.Response.Cookies.Add(new Cookie("sessionId", sessionObject.SessionId));
}
else
{
sessionObject = arequest.Server.ServerSessions.GetSession(sessionCookie.Value);
}
if (sessionObject != null)
{
try
{
sessionObject.TouchTime = DateTime.Now;
arequest.Session = sessionObject;
CHttpResponse response = new CHttpTextResponse("Hello with session id " + sessionObject.SessionId + " touchTime " + sessionObject.TouchTime.ToString());
response.SendResponse(HttpStatusCode.OK, arequest);
}
finally
{
arequest.Session.IsUsed = false;
}
}
else
{
arequest.Response.Cookies.Add(new Cookie("sessionId", ""));
arequest.SendServerExpired(arequest);
}
return(true);
}
public CHttpSession GetSession(string asessionId)
{
CHttpSession result = null;
int repeats = 0;
int waitResult = 0;
bool alreadyChecked = false;
bool running = !haltEvent.WaitOne(0, false);
WaitHandle[] listLocks = new WaitHandle[] { lockMutex, haltEvent, checkStartedEvent };
WaitHandle[] flushLocks = new WaitHandle[] { haltEvent, checkFinishedEvent };
while (running && (repeats <= getSessionRepeats) && (result == null) && !alreadyChecked)
{
waitResult = WaitHandle.WaitAny(listLocks, getSessionTimeout, false);
if (waitResult == 0)
{
try
{
if (asessionId == "")
{
result = new CHttpSession(true);
result.IsUsed = true;
list.Add(result);
}
else
{
result = list.Find(session => session.SessionId == asessionId);
if (result != null)
{
if ((result.TouchTime.AddMilliseconds(expirationTime) <= DateTime.Now) && !result.IsUsed)
{
parentServer.ServerLog.LogInfo("Removing expired session " + result.SessionId);
list.Remove(result);
result = null;
}
else
{
result.IsUsed = true;
}
}
}
alreadyChecked = true;
}
finally
{
lockMutex.ReleaseMutex();
}
}
else if (waitResult == 2)
{
WaitHandle.WaitAny(flushLocks, 5000, false);
}
repeats++;
running = !haltEvent.WaitOne(0, false);
}
return(result);
}
private void CheckExpired()
{
bool haltPending = false;
while (!haltPending)
{
if (!haltEvent.WaitOne(checkExpiredPeriod, false))
{
if (lockMutex.WaitOne(forceExpiredTimeout, false))
{
try
{
for (int counter = list.Count - 1; counter >= 0; --counter)
{
CHttpSession session = list[counter];
if (session.TouchTime.AddMilliseconds(expirationTime) <= DateTime.Now)
{
parentServer.ServerLog.LogInfo("Removing expired session " + session.SessionId);
list.RemoveAt(counter);
}
}
}
finally
{
checkFinishedEvent.Set();
checkStartedEvent.Reset();
lockMutex.ReleaseMutex();
}
}
else
{
checkFinishedEvent.Reset();
checkStartedEvent.Set();
}
}
else
{
haltPending = true;
}
}
}
