예제 #1
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="member"></param>
        /// <param name="autoCreate"></param>
        /// <param name="enableAutologin"></param>
        /// <param name="admin"></param>
        public string SessionBegin(long userId, bool autoCreate, bool enableAutologin, bool twoFactor, DnsRecord record, Uri urlreferer)
        {
            string cookieName = "hailToTheChef";
            /*XmlSerializer xs;
            StringWriter stw;*/

            string protocol = "http://";
            if (core.Settings.UseSecureCookies)
            {
                protocol = "https://";
            }

            string rootSessionId = string.Empty;
            if (record != null)
            {
                rootSessionId = core.Session.SessionId;
            }

            sessionData = null;
            sessionId = null;
            string currentDomain = core.Hyperlink.CurrentDomain;
            if (record != null)
            {
                currentDomain = record.Domain;
            }

            if (!String.IsNullOrEmpty(IsBotUserAgent(Request.UserAgent)))
            {
                signInState = SessionSignInState.Bot;
                core.Hyperlink.SidUrls = false;
                return sessionId;
            }

            if (record == null)
            {
                if (Request.Cookies[cookieName + "_sid"] != null || Request.Cookies[cookieName + "_data"] != null)
                {
                    if (Request.Cookies[cookieName + "_sid"] != null)
                    {
                        sessionId = Request.Cookies[cookieName + "_sid"].Value;
                    }

                    if (Request.Cookies[cookieName + "_data"] != null)
                    {
                        /*xs = new XmlSerializer(typeof(SessionCookie));
                        StringReader sr = new StringReader(HttpUtility.UrlDecode(Request.Cookies[cookieName + "_data"].Value));*/

                        try
                        {
                            sessionData = new SessionCookie(HttpUtility.UrlDecode(Request.Cookies[cookieName + "_data"].Value)); //(SessionCookie)xs.Deserialize(sr);
                        }
                        catch
                        {
                            sessionData = new SessionCookie();
                        }
                    }
                    else
                    {
                        sessionData = new SessionCookie();
                    }

                    if (string.IsNullOrEmpty(sessionId))
                    {
                        sessionId = (string)Request.QueryString["sid"];
                    }

                    sessionMethod = SessionMethods.Cookie;
                }
                else
                {
                    sessionData = new SessionCookie();
                    if (Request.QueryString["sid"] != null)
                    {
                        sessionId = (string)Request.QueryString["sid"];
                    }
                    sessionMethod = SessionMethods.Get;
                }
            }
            else
            {
                sessionData = new SessionCookie();
            }

            if (!string.IsNullOrEmpty(sessionId))
            {
                if (!IsValidSid(sessionId))
                {
                    sessionId = "";
                }
            }

            if (record != null)
            {
                sessionMethod = SessionMethods.Get;
            }

            //
            // First off attempt to join with the autologin value if we have one
            // If not, just use the user_id value
            //

            loggedInMember = null;

            if (userId != 0)
            {
                //if (isset($sessiondata['autologinid']) && (string) $sessiondata['autologinid'] != '' && $user_id)
                if (!string.IsNullOrEmpty(sessionData.autoLoginId) && userId > 0)
                {
                    SelectQuery query = User.GetSelectQueryStub(core, UserLoadOptions.Info);
                    query.AddJoin(JoinTypes.Inner, "session_keys", "user_id", "user_id");
                    query.AddCondition("user_keys.user_id", userId);
                    query.AddCondition("user_active", true);
                    query.AddCondition("key_id", SessionState.SessionMd5(sessionData.autoLoginId));

                    System.Data.Common.DbDataReader userReader = db.ReaderQuery(query);

                    if (userReader.HasRows)
                    {
                        userReader.Read();

                        loggedInMember = new User(core, userReader, UserLoadOptions.Info);

                        userReader.Close();
                        userReader.Dispose();

                        enableAutologin = isLoggedIn = true;
                        if (loggedInMember.UserInfo.TwoFactorAuthVerified && twoFactor)
                        {
                            signInState = SessionSignInState.TwoFactorValidated;
                        }
                        else
                        {
                            signInState = SessionSignInState.SignedIn;
                        }
                    }
                    else
                    {
                        userReader.Close();
                        userReader.Dispose();

                        core.Template.Parse("REDIRECT_URI", "/");

                        if (record == null)
                        {
                            Response.Cookies.Clear();

                            HttpCookie sessionDataCookie = new HttpCookie(cookieName + "_data");
                            //sessionDataCookie.Domain = core.Hyperlink.CurrentDomain;
                            sessionDataCookie.Path = "/";
                            sessionDataCookie.Value = "";
                            sessionDataCookie.Expires = DateTime.MinValue;
                            sessionDataCookie.Secure = core.Settings.UseSecureCookies && core.Hyperlink.CurrentDomain == Hyperlink.Domain;
                            sessionDataCookie.HttpOnly = true;
                            Response.Cookies.Add(sessionDataCookie);

                            HttpCookie sessionSidCookie = new HttpCookie(cookieName + "_sid");
                            //sessionSidCookie.Domain = core.Hyperlink.CurrentDomain;
                            sessionSidCookie.Path = "/";
                            sessionSidCookie.Value = "";
                            sessionSidCookie.Expires = DateTime.MinValue;
                            sessionDataCookie.Secure = core.Settings.UseSecureCookies && core.Hyperlink.CurrentDomain == Hyperlink.Domain;
                            sessionSidCookie.HttpOnly = true;
                            Response.Cookies.Add(sessionSidCookie);

                            if (Request.Cookies[cookieName + "_sid"] == null && signInState != SessionSignInState.Bot)
                            {
                                core.Hyperlink.SidUrls = true;
                            }
                        }

                        //core.Display.ShowMessage("Error", "Error starting session");
                        /*Response.Write("Error starting session");

                        if (db != null)
                        {
                            db.CloseConnection();
                        }
                        Response.End();
                        return null;*/

                        /* Let's try just signing out rather than showing an error message */
                        userId = 0;
                    }
                }
                else if (!autoCreate)
                {
                    sessionData.autoLoginId = "";
                    sessionData.userId = userId;

                    if (userId > 0)
                    {
                        SelectQuery query = User.GetSelectQueryStub(core, UserLoadOptions.Info);
                        query.AddCondition("user_active", true);
                        query.AddCondition("user_keys.user_id", userId);

                        System.Data.Common.DbDataReader userSessionReader = db.ReaderQuery(query);

                        if (userSessionReader.HasRows)
                        {
                            userSessionReader.Read();

                            loggedInMember = new User(core, userSessionReader, UserLoadOptions.Info);

                            userSessionReader.Close();
                            userSessionReader.Dispose();

                            isLoggedIn = true;
                            //signInState = SessionSignInState.SignedIn;
                            if (loggedInMember.UserInfo.TwoFactorAuthVerified && twoFactor)
                            {
                                signInState = SessionSignInState.TwoFactorValidated;
                            }
                            else
                            {
                                signInState = SessionSignInState.SignedIn;
                            }
                        }
                        else
                        {
                            userSessionReader.Close();
                            userSessionReader.Dispose();

                            // TODO: activation
                            //core.Display.ShowMessage("Inactive account", "You have attempted to use an inactive account. If you have just registered, check for an e-mail with an activation link at the e-mail address you provided.");
                            Response.Write("You have attempted to use an inactive account. If you have just registered, check for an e-mail with an activation link at the e-mail address you provided.");
                            //Display.ShowMessage(this, "Error", "Error starting session");
                            //Response.Write("fail 1");
                            if (db != null)
                            {
                                db.CloseConnection();
                            }
                            Response.End();
                        }
                    }
                }
            }

            //
            // At this point either loggedInMember should be populated or
            // one of the below is true
            // * Key didn't match one in the DB
            // * User does not exist
            // * User is inactive
            //
            if (loggedInMember == null)
            {
                if (sessionData == null)
                {
                    sessionData = new SessionCookie();
                }
                sessionData.autoLoginId = "";
                sessionData.userId = userId = 0;
                enableAutologin = isLoggedIn = false;
                signInState = SessionSignInState.SignedOut;

                if (userId > 0)
                {
                    SelectQuery query = User.GetSelectQueryStub(core, UserLoadOptions.Info);
                    query.AddCondition("user_keys.user_id", userId);

                    System.Data.Common.DbDataReader userReader = db.ReaderQuery(query);

                    if (userReader.HasRows)
                    {
                        userReader.Read();

                        loggedInMember = new User(core, userReader, UserLoadOptions.Info);
                    }

                    userReader.Close();
                    userReader.Dispose();
                }
            }

            // INFO: phpBB2 performs a ban check, we don't have those facilities so let's skip

            //
            // Create or update the session
            //
            long changedRows = 0;

            if (record == null)
            {
                changedRows = db.UpdateQuery(string.Format("UPDATE user_sessions SET session_time_ut = UNIX_TIMESTAMP(), user_id = {0}, session_signed_in = {1} WHERE session_string = '{3}' AND session_ip = '{2}';",
                    userId, (byte)signInState, ipAddress.ToString(), sessionId)); // , session_http_referer = ''
            }

            if (changedRows == 0)
            {
                // This should force new sessions on external domains to re-auth rather than logout
                if (core.Hyperlink.CurrentDomain != Hyperlink.Domain)
                {
                    string referer = string.Empty;
                    if (HttpContext.Current.Request.UrlReferrer != null)
                    {
                        referer = HttpContext.Current.Request.UrlReferrer.ToString();
                    }
                    HttpContext.Current.Response.Redirect(protocol + Hyperlink.Domain + string.Format("/session.aspx?domain={0}&path={1}&urlreferer={2}",
                        HttpContext.Current.Request.Url.Host, core.PagePath.TrimStart(new char[] { '/' }), referer));
                    return string.Empty;
                }
                else
                {
                    RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider();
                    byte[] randomNumber = new byte[16];
                    rng.GetBytes(randomNumber);
                    //Random rand = new Random((int)(DateTime.Now.Ticks & 0xFFFF));
                    //rand.NextDouble().ToString()

                    string rand = HexRNG(randomNumber);
                    sessionId = SessionState.SessionMd5(rand + "bsseed" + DateTime.Now.Ticks.ToString() + ipAddress.ToString()).ToLower();

                    if (record == null)
                    {
                        rootSessionId = sessionId;
                    }
                    string referer = string.Empty;
                    if (urlreferer != null)
                    {
                        referer = urlreferer.ToString();
                    }
                    db.UpdateQuery(string.Format("INSERT INTO user_sessions (session_string, session_time_ut, session_start_ut, session_signed_in, session_ip, user_id, session_root_string, session_domain, session_http_referer) VALUES ('{0}', UNIX_TIMESTAMP(), UNIX_TIMESTAMP(), {1}, '{2}', {3}, '{4}', '{5}', '{6}')",
                        sessionId, (byte)signInState, ipAddress.ToString(), userId, Mysql.Escape(rootSessionId), Mysql.Escape(currentDomain), Mysql.Escape(referer)));
                }
            }

            if (record == null)
            {
                // 1 in 100 chance of deleting stale sessions
                // Move delete stale session code outside to allow guest sessions to clear stale sessions on low use websites
                Random rand = new Random();
                if (rand.NextDouble() * 100 < 1)
                {
                    db.UpdateQuery(string.Format("DELETE FROM user_sessions WHERE session_time_ut + {0} < UNIX_TIMESTAMP()",
                        SessionState.SESSION_EXPIRES));
                }

                if (userId != 0)
                {
                    long ts = UnixTime.UnixTimeStamp() - loggedInMember.UserInfo.LastVisitDateRaw;

                    if (ts >= 60)
                    {
                        db.UpdateQuery(string.Format("UPDATE user_info SET user_last_visit_ut = UNIX_TIMESTAMP() where user_id = {0}",
                            loggedInMember.UserId));
                    }

                    if (enableAutologin)
                    {
                        string autoLoginKey = SessionState.SessionMd5(rand.NextDouble().ToString() + "zzseed").Substring(4, 16) + SessionState.SessionMd5(rand.NextDouble().ToString() + "zzseed").Substring(4, 16);

                        if (!string.IsNullOrEmpty(sessionData.autoLoginId))
                        {
                            db.UpdateQuery(string.Format("UPDATE session_keys SET key_last_ip = '{0}', key_id = '{1}', key_last_visit_ut = UNIX_TIMESTAMP() WHERE key_id = '{2}'",
                                ipAddress.ToString(), SessionState.SessionMd5(autoLoginKey), SessionState.SessionMd5(sessionData.autoLoginId)));
                        }
                        else
                        {
                            db.UpdateQuery(string.Format("INSERT INTO session_keys (key_id, user_id, key_last_ip, key_last_visit_ut, key_browser_string) VALUES ('{0}', {1}, '{2}', UNIX_TIMESTAMP(), '{3}')",
                                SessionState.SessionMd5(autoLoginKey), userId, ipAddress.ToString(), Mysql.Escape(Request.UserAgent)));
                        }

                        sessionData.autoLoginId = autoLoginKey;
                        autoLoginKey = "";
                    }
                    else
                    {
                        sessionData.autoLoginId = "";
                    }
                }
            }

            core.Hyperlink.Sid = sessionId;

            if (record == null)
            {
                Response.Cookies.Clear();

                /*xs = new XmlSerializer(typeof(SessionCookie));
                StringBuilder sb = new StringBuilder();
                stw = new StringWriter(sb);

                xs.Serialize(stw, sessionData);
                stw.Flush();
                stw.Close();*/

                HttpCookie newSessionDataCookie = new HttpCookie(cookieName + "_data");

                //newSessionDataCookie.Domain = core.Hyperlink.CurrentDomain; // DO NOT DO THIS, exposes cookie to sub domains
                newSessionDataCookie.Path = "/";
                newSessionDataCookie.Value = sessionData.ToString().Replace("\r", "").Replace("\n", "");
                newSessionDataCookie.Expires = DateTime.Now.AddYears(1);
                newSessionDataCookie.Secure = core.Settings.UseSecureCookies && core.Hyperlink.CurrentDomain == Hyperlink.Domain;
                newSessionDataCookie.HttpOnly = true;
                Response.Cookies.Add(newSessionDataCookie);

                HttpCookie newSessionSidCookie = new HttpCookie(cookieName + "_sid");
                //newSessionSidCookie.Domain = core.Hyperlink.CurrentDomain; // DO NOT DO THIS, exposes cookie to sub domains
                newSessionSidCookie.Path = "/";
                newSessionSidCookie.Value = sessionId;
                newSessionSidCookie.Expires = DateTime.MinValue;
                newSessionSidCookie.Secure = core.Settings.UseSecureCookies && core.Hyperlink.CurrentDomain == Hyperlink.Domain;
                newSessionSidCookie.HttpOnly = true;
                Response.Cookies.Add(newSessionSidCookie);

                if (Request.Cookies[cookieName + "_sid"] == null && signInState != SessionSignInState.Bot)
                {
                    core.Hyperlink.SidUrls = true;
                }
            }

            return sessionId;
        }
예제 #2
0
        public void SessionPagestart(string userIp)
        {
            #if DEBUG
            Stopwatch timeTimer = new Stopwatch();
            timeTimer.Start();
            #endif
            long nowUt = UnixTime.UnixTimeStamp();
            #if DEBUG
            timeTimer.Stop();
            HttpContext.Current.Response.Write(string.Format("<!-- section A.1.b in {0} -->\r\n", timeTimer.ElapsedTicks / 10000000.0));
            #endif

            string cookieName = "hailToTheChef";
            /*XmlSerializer xs;
            StringWriter stw;*/

            string protocol = "http://";
            if (core.Settings.UseSecureCookies)
            {
                protocol = "https://";
            }

            sessionData = null;
            sessionId = null;

            #if DEBUG
            Stopwatch botTimer = new Stopwatch();
            botTimer.Start();
            #endif
            if (!String.IsNullOrEmpty(IsBotUserAgent(Request.UserAgent)))
            {
                signInState = SessionSignInState.Bot;
                core.Hyperlink.SidUrls = false;
                return;
            }
            #if DEBUG
            botTimer.Stop();
            HttpContext.Current.Response.Write(string.Format("<!-- section A.1.c in {0} -->\r\n", botTimer.ElapsedTicks / 10000000.0));
            #endif

            #if DEBUG
            Stopwatch cookieTimer = new Stopwatch();
            cookieTimer.Start();
            #endif
            HttpCookie sidCookie = Request.Cookies[cookieName + "_sid"];
            HttpCookie dataCookie = Request.Cookies[cookieName + "_data"];

            if (sidCookie != null || dataCookie != null)
            {
                if (sidCookie != null)
                {
                    sessionId = sidCookie.Value;
                }

                if (dataCookie != null)
                {
                    /*xs = new XmlSerializer(typeof(SessionCookie));
                    StringReader sr = new StringReader(HttpUtility.UrlDecode(Request.Cookies[cookieName + "_data"].Value));*/

                    try
                    {
                        sessionData = new SessionCookie(HttpUtility.UrlDecode(dataCookie.Value)); //(SessionCookie)xs.Deserialize(sr);
                    }
                    catch
                    {
                        sessionData = new SessionCookie();
                    }
                }
                else
                {
                    sessionData = new SessionCookie();
                }

                if (string.IsNullOrEmpty(sessionId))
                {
                    sessionId = (string)Request.QueryString["sid"];
                }

                if ((Hyperlink.Domain != core.Hyperlink.CurrentDomain) && (sessionId != (string)Request.QueryString["sid"]) && (!string.IsNullOrEmpty((string)Request.QueryString["sid"])))
                {
                    sessionData = new SessionCookie();
                    sessionId = (string)Request.QueryString["sid"];
                }

                if ((core.Hyperlink.CurrentDomain != Hyperlink.Domain) && string.IsNullOrEmpty(sessionId))
                {
                    string referer = string.Empty;
                    if (HttpContext.Current.Request.UrlReferrer != null)
                    {
                        referer = HttpContext.Current.Request.UrlReferrer.ToString();
                    }
                    HttpContext.Current.Response.Redirect(protocol + Hyperlink.Domain + string.Format("/session.aspx?domain={0}&path={1}&urlreferer={2}",
                        HttpContext.Current.Request.Url.Host, core.PagePath.TrimStart(new char[] { '/' }), referer));
                    //return;
                }

                sessionMethod = SessionMethods.Cookie;
            }
            else
            {
                sessionData = new SessionCookie();
                if (Request.QueryString["sid"] != null)
                {
                    sessionId = (string)Request.QueryString["sid"];
                }
                sessionMethod = SessionMethods.Get;

                if ((core.Hyperlink.CurrentDomain != Hyperlink.Domain) && string.IsNullOrEmpty(sessionId))
                {
                    string referer = string.Empty;
                    if (HttpContext.Current.Request.UrlReferrer != null)
                    {
                        referer = HttpContext.Current.Request.UrlReferrer.ToString();
                    }
                    HttpContext.Current.Response.Redirect(protocol + Hyperlink.Domain + string.Format("/session.aspx?domain={0}&path={1}&urlreferer={2}",
                        HttpContext.Current.Request.Url.Host, core.PagePath.TrimStart(new char[] { '/' }), referer));
                    //return;
                }
            }
            #if DEBUG
            cookieTimer.Stop();
            HttpContext.Current.Response.Write(string.Format("<!-- section A.1.d in {0} -->\r\n", cookieTimer.ElapsedTicks / 10000000.0));
            #endif

            #if DEBUG
            Stopwatch sidTimer = new Stopwatch();
            sidTimer.Start();
            #endif
            if (!string.IsNullOrEmpty(sessionId))
            {
                if (!IsValidSid(sessionId))
                {
                    sessionId = "";
                }
            }
            #if DEBUG
            sidTimer.Stop();
            HttpContext.Current.Response.Write(string.Format("<!-- section A.1.e in {0} -->\r\n", sidTimer.ElapsedTicks / 10000000.0));
            #endif

            if (!string.IsNullOrEmpty(sessionId))
            {
                //
                // session_id exists so go ahead and attempt to grab all
                // data in preparation
                //
                SelectQuery query = User.GetSelectQueryStub(core, UserLoadOptions.Info);
                query.AddFields("session_ip", "session_time_ut", "session_signed_in");
                query.AddJoin(JoinTypes.Inner, new DataField(typeof(User), "user_id"), new DataField("user_sessions", "user_id"));
                query.AddCondition("session_string", sessionId);

                System.Data.Common.DbDataReader userSessionReader = db.ReaderQuery(query);

                //
                // Did the session exist in the DB?
                //
                if (userSessionReader.HasRows)
                {
                    userSessionReader.Read();
                    //DataRow userSessionRow = userSessionTable.Rows[0];
                    loggedInMember = new User(core, userSessionReader, UserLoadOptions.Info);

                    sbyte sessionSignedIn = (sbyte)userSessionReader["session_signed_in"];
                    long sessionTimeUt = (long)userSessionReader["session_time_ut"];
                    string sessionIp = (string)userSessionReader["session_ip"];

                    userSessionReader.Close();
                    userSessionReader.Dispose();

                    core.Hyperlink.Sid = sessionId;

                    if (loggedInMember.UserId != 0)
                    {
                        isLoggedIn = true;
                        if (loggedInMember.UserInfo.TwoFactorAuthVerified)
                        {
                            signInState = (SessionSignInState)sessionSignedIn;
                        }
                        else
                        {
                            signInState = SessionSignInState.SignedIn;
                        }
                    }

                    //
                    // Do not check IP assuming equivalence, if IPv4 we'll check only first 24
                    // bits ... I've been told (by vHiker) this should alleviate problems with
                    // load balanced et al proxies while retaining some reliance on IP security.
                    //

                    // we will use complete matches in BoxSocial
                    if (sessionIp == userIp)
                    {
                        //
                        // Only update session DB a minute or so after last update
                        //
                        if (nowUt - sessionTimeUt >= 60)
                        {
                            long changedRows = db.UpdateQuery(string.Format("UPDATE user_sessions SET session_time_ut = UNIX_TIMESTAMP(), session_http_referer = '' WHERE session_string = '{0}';",
                                sessionId));

                            if (SignedIn)
                            {
                                long ts = UnixTime.UnixTimeStamp() - loggedInMember.UserInfo.LastVisitDateRaw;

                                if (ts >= 60)
                                {
                                    db.UpdateQuery(string.Format("UPDATE user_info SET user_last_visit_ut = UNIX_TIMESTAMP() where user_id = {0}",
                                        loggedInMember.UserId));

                                    Random rand = new Random();

                                    // 1 in 10 chance of deleting stale sessions
                                    if (rand.NextDouble() * 10 < 1)
                                    {
                                        db.UpdateQuery(string.Format("DELETE FROM user_sessions WHERE session_time_ut + {0} < UNIX_TIMESTAMP()",
                                            SessionState.SESSION_EXPIRES));
                                    }
                                }
                            }

                            SessionClean(sessionId);
                        }

            #if DEBUG
                        Stopwatch cookie2Timer = new Stopwatch();
                        cookie2Timer.Start();
            #endif
                        Response.Cookies.Clear();

                        /*xs = new XmlSerializer(typeof(SessionCookie));
                        StringBuilder sb = new StringBuilder();
                        stw = new StringWriter(sb);

                        xs.Serialize(stw, sessionData);
                        stw.Flush();
                        stw.Close();*/

                        HttpCookie newSessionDataCookie = new HttpCookie(cookieName + "_data");

                        newSessionDataCookie.Value = sessionData.ToString().Replace("\r", "").Replace("\n", "");
                        newSessionDataCookie.Path = "/";
                        newSessionDataCookie.Expires = DateTime.Now.AddYears(1);
                        newSessionDataCookie.Secure = core.Settings.UseSecureCookies && core.Hyperlink.CurrentDomain == Hyperlink.Domain;
                        newSessionDataCookie.HttpOnly = true;
                        Response.Cookies.Add(newSessionDataCookie);

                        HttpCookie newSessionSidCookie = new HttpCookie(cookieName + "_sid");
                        newSessionSidCookie.Path = "/";
                        newSessionSidCookie.Value = sessionId;
                        newSessionSidCookie.Expires = DateTime.MinValue;
                        newSessionSidCookie.Secure = core.Settings.UseSecureCookies && core.Hyperlink.CurrentDomain == Hyperlink.Domain;
                        newSessionSidCookie.HttpOnly = true;
                        Response.Cookies.Add(newSessionSidCookie);

                        // Add the session_key to the userdata array if it is set

                        if (Request.Cookies[cookieName + "_sid"] == null && signInState != SessionSignInState.Bot)
                        {
                            core.Hyperlink.SidUrls = true;
                        }

            #if DEBUG
                        cookie2Timer.Stop();
                        HttpContext.Current.Response.Write(string.Format("<!-- section A.1.f in {0} -->\r\n", cookie2Timer.ElapsedTicks / 10000000.0));
            #endif

                        return;
                    }
                }
                else
                {
                    userSessionReader.Close();
                    userSessionReader.Dispose();

                    //Display.ShowMessage(this, "Error", "Error starting session");
                    //Response.Write("fail 3");
                    //Response.End();
                }
            }

            //
            // If we reach here then no (valid) session exists. So we'll create a new one,
            // using the cookie user_id if available to pull basic user prefs.
            //

            long userId = (sessionData != null && sessionData.userId > 0) ? sessionData.userId : 0;

            // If the current domain is not the root domain, and the session is empty
            if ((core.Hyperlink.CurrentDomain != Hyperlink.Domain) && userId > 0 /*&& string.IsNullOrEmpty(sessionId)*/)
            {
                if ((core.Hyperlink.CurrentDomain != Hyperlink.Domain) && string.IsNullOrEmpty(sessionId))
                {
                    string referer = string.Empty;
                    if (HttpContext.Current.Request.UrlReferrer != null)
                    {
                        referer = HttpContext.Current.Request.UrlReferrer.ToString();
                    }
                    HttpContext.Current.Response.Redirect(protocol + Hyperlink.Domain + string.Format("/session.aspx?domain={0}&path={1}&urlreferer={2}",
                        HttpContext.Current.Request.Url.Host, core.PagePath.TrimStart(new char[] { '/' }), referer));
                    //return;
                }
            }
            else
            {
            #if DEBUG
                Stopwatch httpTimer = new Stopwatch();
                httpTimer.Start();
            #endif
                SessionBegin(userId, true);
            #if DEBUG
                httpTimer.Stop();
                HttpContext.Current.Response.Write(string.Format("<!-- section A.1.a in {0} -->\r\n", httpTimer.ElapsedTicks / 10000000.0));
            #endif
            }
        }