logout page don't allow to go back with out login

241 100+

sir i am creating a page for logout but problems is here if user is logout and click on standard back button then go on previous page so how can restricted it if user is logout then you don't go back without login

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<%@ Language=VBScript %>

<% Option Explicit %>

<html>

<head>

<meta http-equiv="Expires" content="here goes the present date" />

<title>Voice Of Baraunians</title>

<!--#include file="front.inc"-->

</head>

<body>

<%If Request.Cookies("userid") = "" Then%>

  <div style="Position:Absolute; top:150; left:250;background-color: #f0f0f0">

    <center><h2><font face="arial" color='blue'>You are not authorised to view this page. You will be prosecuted for this action</font></h2></center>

  </div>

<%Else%>

  <div style="Position:Absolute; top:150; left:100">

    <h2>Logging Out ............</h2>

    <h4>Wait a moment.</h4>

  </div>

<%

  Dim conn

  Dim R

  Dim vuserid

  Set conn = Server.CreateObject("ADODB.Connection")

  conn.Mode = adModeReadWrite

  conn.Open("DSN=Oracle; USER ID = STARTER; PASSWORD = STARTER")

  Set R = Server.CreateObject("ADODB.Recordset")

  R.Open "Select Userid, status from userid", conn, adOpenStatic, adLockOptimistic, adCmdText

  vuserid = Request.Cookies("userid")

  R.Find "userid = '" & vuserid & "'"

  If Not R.EOF Then

    R("Status") = 0

    R.Update

  End If

  Response.Cookies("userid") = ""

  R.Close

  Set R = Nothing

  conn.close

  Set Conn = Nothing

  Response.Redirect "login.asp"

End If

%>

</body>

</html>

Dec 15 '07 #1

Subscribe Post Reply

3400

stepterr

157

100+

When the user logs off you need to set the cookie to expire sometime in the past so that it is removed. You could do something like this.

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 HttpCookie c1 = Request.Cookies[admin.COOKIE_USER];

HttpCookie c2 = Request.Cookies[admin.COOKIE_PSWD];

Request.Cookies.Remove(admin.COOKIE_USER);

Request.Cookies.Remove(admin.COOKIE_PSWD);

c1.Expires = DateTime.Now.AddDays(-10);

c2.Expires = DateTime.Now.AddDays(-10);

c1.Value = null;

c2.Value = null;

Response.SetCookie(c1);

Response.SetCookie(c2);

Dec 15 '07 #2

jhardman

3,406

Expert 2GB

Also make sure the page HTML caching attribute is set to no-cache.

Dec 17 '07 #3

idsanjeev

241

100+

where i have to use above code and how can chek it html catch

Dec 24 '07 #4

jhardman

3,406

Expert 2GB

where i have to use above code and how can chek it html catch

you need to set all the cookies at the very beginning of the page, before you start sending any HTML code to the browser.

As for caching (this word is actually French. "cache" is the correct spelling, not "catch") check in the HTML forum, I don't remember the code off-hand.

Jared

Dec 30 '07 #5

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