Multiple PHP sessions within the same browser instance Post: 54365

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Top Forums Shell Programming and Scripting Multiple PHP sessions within the same browser instance Post 54365 by zazzybob on Wednesday 11th of August 2004 11:33:54 AM

08-11-2004

Registered User

I am fiddling around with variations of this now.... However, I have a set of columns in the users table that govern various permissions over the DB, (e.g. can create categories, can edit items, can delete items, etc, etc). So I can't really break it down into either admin or users, as I want to assign each user fine grained permissions - this is what makes setting the cookie (and then getting the page to render accordingly) quite difficult. As you say, if you login as somebody else the cookie gets clobbered and the "old" session assumes the values stored in the "new" sessions cookie.

It also becomes complicated when reading in cookie values. Say i'm logged in as both a user and an admin, and I try to remove an entry as the user, if the admin cookie exists as well, isn't it going to be a pain to decipher what's going on? (Because the script will be saying "if admin cookie exists - allow, else disallow), but both cookies will exist?

I think as a workaround for now, I will have to stick to limiting the thing to a single session per IP address. It's kludgy but will work. I think that it's just as easy to log out, and then log back in as a user with appropriate priveledges to do whatever needs doing. I've also set up a series of cookies that are set to various crypt()ed values to stop a user trying to forge a cookie with elevated priveledges and everything seems pretty secure at the moment.

Let me know if you come up with anything more (or if I've got the wrong end of the stick) - I'm still open to ideas and am still hacking around.

Thanks again,

Cheers
ZB

zazzybob

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LEARN ABOUT DEBIAN

dancer::cookies

Dancer::Cookies(3pm)					User Contributed Perl Documentation				      Dancer::Cookies(3pm)

NAME

       Dancer::Cookies - a singleton storage for all cookies

SYNOPSIS

	   use Dancer::Cookies;

	   my $cookies = Dancer::Cookies->cookies;

	   foreach my $name ( keys %{$cookies} ) {
	       my $cookie = $cookies->{$name};
	       my $value  = $cookie->value;
	       print "$name => $value
";
	   }

	   cookie lang => "fr-FR"; #set a cookie and return its value
	   cookie lang => "fr-FR", expires => "2 hours";
	   cookie "lang"	   #return a cookie value

DESCRIPTION

       Dancer::Cookies keeps all the cookies defined by the application and makes them accessible and provides a few helper functions for cookie
       handling with regards to the stored cookies.

METHODS

   init
       This method is called when "->new()" is called. It creates a storage of cookies parsed from the environment using "parse_cookies_from_env"
       described below.

   cookies
       Returns a hash reference of all cookies, all objects of Dancer::Cookie type.

       The key is the cookie name, the value is the Dancer::Cookie object.

   cookie
       "cookie" method is useful to query or set cookies easily.

	   cookie lang => "fr-FR";		# set a cookie and return its value
	   cookie lang => "fr-FR", expires => "2 hours";   # extra cookie info
	   cookie "lang"			# return a cookie value

   parse_cookie_from_env
       Fetches all the cookies from the environment, parses them and creates a hashref of all cookies.

       It also returns all the hashref it created.

AUTHOR

       Alexis Sukrieh

LICENSE AND COPYRIGHT

       Copyright 2009-2010 Alexis Sukrieh.

       This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as
       published by the Free Software Foundation; or the Artistic License.

       See http://dev.perl.org/licenses/ for more information.

perl v5.14.2							    2012-01-28						      Dancer::Cookies(3pm)