| # Copyright 2000-2004 The Apache Software Foundation |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| use strict; |
| use Apache::Cookie (); |
| use Apache::Request (); |
| |
| use vars qw(@ANIMALS); |
| |
| unless (@ANIMALS) { |
| @ANIMALS = sort qw{ |
| lion tiger bear pig porcupine ferret zebra gnu ostrich |
| emu moa goat weasel yak chicken sheep hyena dodo lounge-lizard |
| squirrel rat mouse hedgehog racoon baboon kangaroo hippopotamus |
| }; |
| } |
| |
| my $r = shift; |
| my $apr = Apache::Request->new($r); |
| my $cookies = Apache::Cookie->new($r)->parse; |
| my $c = $cookies->{'animals'}; |
| my %zoo = (); |
| %zoo = $c->value if $c; |
| |
| # Recover the new animal(s) from the parameter 'new_animal' |
| my @new = $apr->param('new_animals'); |
| |
| # If the action is 'add', then add new animals to the zoo. Otherwise |
| # delete them. |
| foreach (@new) { |
| if ($apr->param('action') eq 'Add') { |
| $zoo{$_}++; |
| } |
| elsif ($apr->param('action') eq 'Delete') { |
| $zoo{$_}-- if $zoo{$_}; |
| delete $zoo{$_} unless $zoo{$_}; |
| } |
| } |
| |
| # Add new animals to old, and put them in a cookie |
| my $cookie = Apache::Cookie->new($r, |
| -name => 'animals', |
| -value => \%zoo, |
| -expires => '+1h'); |
| |
| $cookie->bake; |
| $apr->send_http_header('text/html'); |
| my $title = 'Animal crackers'; |
| |
| print <<EOF; |
| <HTML> |
| <HEAD><TITLE>$title</TITLE></HEAD> |
| <BODY> |
| <h1>$title</h1> |
| Choose the animals you want to add to the zoo, and click "add". |
| <p> |
| <center> |
| <table border> |
| <tr><th>Add/Delete<th>Current Contents |
| <tr><td> |
| <FORM METHOD="POST"> |
| <SELECT NAME="new_animals" SIZE=10 MULTIPLE> |
| EOF |
| |
| for (@ANIMALS) { |
| print qq{<OPTION VALUE="$_">$_\n} |
| } |
| |
| print <<EOF; |
| </SELECT> |
| <br> |
| <INPUT TYPE="submit" NAME="action" VALUE="Delete"> |
| <INPUT TYPE="submit" NAME="action" VALUE="Add"> |
| </FORM> |
| <td> |
| EOF |
| |
| if (%zoo) { |
| print "<ul>\n"; |
| foreach (sort keys %zoo) { |
| print "<li>$zoo{$_} $_\n"; |
| } |
| print "</ul>\n"; |
| } |
| else { |
| print "<strong>The zoo is empty.</strong>\n"; |
| } |
| |
| print <<EOF; |
| </table></center> |
| </BODY></HTML> |
| EOF |
| |
| |
| |
