--- loncom/cgi/loncgi.pm 2006/09/19 21:36:31 1.8 +++ loncom/cgi/loncgi.pm 2008/12/25 01:51:03 1.11 @@ -1,7 +1,7 @@ # # LON-CAPA helpers for cgi-bin scripts # -# $Id: loncgi.pm,v 1.8 2006/09/19 21:36:31 albertel Exp $ +# $Id: loncgi.pm,v 1.11 2008/12/25 01:51:03 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -36,8 +36,8 @@ loncgi =head1 SYNOPSIS -Provides subroutines for checking a LON-CAPA cookie and loading the users -environment. +Provides subroutines for checking a LON-CAPA cookie, loading the user's +environment, and retrieving arguments passed in via a CGI's Query String. =head1 Subroutines @@ -60,6 +60,7 @@ use Fcntl qw(:flock); use LONCAPA; use LONCAPA::Configuration(); use GDBM_File; +use Apache::lonlocal; my $lonidsdir; @@ -69,14 +70,16 @@ BEGIN { $lonidsdir = $perlvar->{'lonIDsDir'}; } + ############################################# ############################################# =pod -=item check_cookie_and_load_env +=item check_cookie_and_load_env() -Inputs: none +Inputs: 1 ( optional). When called from a handler in mod_perl, + pass in the request object. Returns: 1 if the user has a LON-CAPA cookie 0 if not. Loads the users environment into the %env hash if the cookie is correct. @@ -86,7 +89,13 @@ Loads the users environment into the %en ############################################# ############################################# sub check_cookie_and_load_env { - my %cookies=fetch CGI::Cookie; + my ($r) = @_; + my %cookies; + if (ref($r)) { + %cookies = CGI::Cookie->fetch($r); + } else { + %cookies = CGI::Cookie->fetch(); + } if (exists($cookies{'lonID'}) && -e "$lonidsdir/".$cookies{'lonID'}->value.".id") { # cookie found @@ -103,7 +112,7 @@ sub check_cookie_and_load_env { =pod -=item check_cookie +=item check_cookie() Inputs: none @@ -130,7 +139,7 @@ sub check_cookie { =pod -=item transfer_profile_to_env +=item transfer_profile_to_env() Load the users environment into the %env hash. @@ -156,6 +165,63 @@ sub transfer_profile_to_env { ############################################# ############################################# +=pod + +=item missing_cookie_msg() + +Inputs: none +Returns: HTML for a page indicating cookie information absent. + +=cut + +############################################# +############################################# +sub missing_cookie_msg { + my %lt = &Apache::lonlocal::texthash ( + cook => 'Bad Cookie', + your => 'Your cookie information is incorrect.', + ); + return < +$lt{'cook'} + +$lt{'your'} + + +END + +} + +############################################# +############################################# + +=pod + +=cgi_getitems() + +Inputs: $query (the CGI query string), and $getitems, a reference to a hash + +Returns: nothing + +Side Effects: populates $getitems hash ref with key => value + where each key is the name of the form item in the query string + and value is an array of corresponding values. + +=cut + +############################################# +############################################# +sub cgi_getitems { + my ($query,$getitems)= @_; + foreach (split(/&/,$query)) { + my ($name, $value) = split(/=/,$_); + $name = &unescape($name); + $value =~ tr/+/ /; + $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; + push(@{$$getitems{$name}},$value); + } + return; +} =pod