Re: sessions on websites
- From: "Ricks Place" <OFBGMail@xxxxxxxxx>
- To: <programmingblind@xxxxxxxxxxxxx>
- Date: Fri, 5 Dec 2008 05:17:39 -0500
Hi:
This is called Security. To do what you want you would have the pages you
want displayed flagged in some way so that when you display the links for
those pages only those pages allowed based on some kind of security level
will be displayed to each user.
Typically you would keep a list of user Id's and Passwords in a file or
DataBase. Then before creating the page with the list of links you would
check the currently logged in user against that list. If they are on the
list you display the secure links along with the non-secure or often called
links for quote Anonymus Users.
That whole subject can be as simple as a text file with some codes you check
at Page Load time or as complex as using a DataBase driven Security System.
The Session Variable would just be a place to hold a value like a UserId or
Key Code which would follow the currently logged-in user around your site
and used like any other variable. Session variables do have some nasty
problems though and you might just put your security key or code or other
indication of successful login in the Page Query String. This is much easier
and poses many fewer problems.
Rick USA
.
----- Original Message -----
From: "Alex Hall" <mehgcap@xxxxxxx>
To: <programmingblind@xxxxxxxxxxxxx>
Sent: Thursday, December 04, 2008 2:53 PM
Subject: sessions on websites
Hi all,
This is more on-topic than my last post, but still regarding the internet.
I am doing a project for web programming and will get extra credit if I
can use a session to let the user go to some places and not others. For
example, anyone can go to index.html but only logged-in members can go to
welcome.html or contact_manager.php. I know I can use either cookies
(which I would like to avoid as there seems to be no definitive,
easy-to-understand tutorial on them) or I could use session variables in
php (the only server-side language I know). I do not understand how I can
use either of these to restrict access. For an example, go to
Bookshare.org. If you do not log in, every page offers a login form. If
you are logged in, you can visit the member homepage and you do not see
the login form unless you close the browser; even going to another site
and coming back will keep you logged in. All the pages, though, are html,
not php or another language. HOW???? Thanks for any help/info. I just
want to know how to do this, I do not expect the code written for me,
especially as this is a project and not something I am doing for my own
education on my own time.
Have a great day,
Alex
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