private string CheckSession()
{
string sessionId = "";
try
{
ServerCollection servers = new ServerCollection(Path.Combine(
Request.PhysicalApplicationPath,
"App_Data",
"Servers.xml"
));
string server;
if (Request.Cookies["ASP.NET_SessionId"] != null)
{
sessionId = Request.Cookies["ASP.NET_SessionId"].Value;
if (!Global.Sessions.ContainsKey(sessionId))
{
//sessionId = GenerateNewSessionId();
//Request.Cookies.Remove("ASP.NET_SessionId");
//Request.Cookies.Add(new HttpCookie("ASP.NET_SessionId", sessionId));
server = servers.GetServer(Request.ServerVariables["REMOTE_HOST"]);
}
else if (servers.Items.ContainsKey(Global.Sessions[sessionId]) == false ||
servers.Items[Global.Sessions[sessionId]].State == ServerState.Offline)
{
server = servers.GetServer(Request.ServerVariables["REMOTE_HOST"]);
}
else
{
server = Global.Sessions[sessionId];
}
if (server == null)
{
ShowOverloadMessage();
return(null);
}
}
else
{
server = servers.GetServer(Request.ServerVariables["REMOTE_HOST"]);
if (server == null)
{
ShowOverloadMessage();
return(null);
}
ServiceLink service = new ServiceLink(string.Format(
"http://{0}/Handlers/GlobalHandler.ashx",
server
));
/*Dictionary<string, string> cookies = new Dictionary<string, string>();
*
* cookies.Add("ASP.NET_SessionId", GenerateNewSessionId());*/
sessionId = service.Request(new string[]
{
"Method=CreateSession"
});
Request.Cookies.Add(new HttpCookie("ASP.NET_SessionId", sessionId));
}
if (!Global.Sessions.ContainsKey(sessionId))
{
Global.Sessions.Add(
sessionId,
server
);
}
else
{
Global.Sessions[sessionId] = server;
}
}
catch (Exception ex)
{
Response.Write(ex.ToString());
Response.End();
return(null);
}
return(sessionId);
}
