Implement CAPTCHA

guestbook-ng.pl

@@ -34,6 +34,14 @@ helper message => sub {
 };
 
 # Routes
+under sub ($c) {
+    # Opt out of Google FLoC
+    # https://paramdeo.com/blog/opting-your-website-out-of-googles-floc-network
+    $c->res->headers->header('Permissions-Policy', 'interest-cohort=()');
+
+    1;
+};
+
 get '/' => sub ($c) {
     my $posts      = $c->message->get_posts();
     my $last_page  = $c->message->get_last_page(@$posts);
@@ -53,8 +61,9 @@ any '/sign' => sub ($c) {
     if ($c->req->method() eq 'POST') {
         my $name    = $c->param('name');
         my $message = $c->param('message');
+        my $answer  = $c->param('answer');
 
-        $c->message->send_post($name, $message);
+        $c->message->send_post($name, $message) if $answer;
         $c->redirect_to('index');
     }
     else {

lib/GuestbookNg/Model/Message.pm

@@ -36,7 +36,13 @@ sub max_posts($self, $value = undef) {
 }
 
 sub get_last_page($self, @posts) {
-    sprintf('%d', scalar(@posts) / $self->{'max_posts'}) + 1
+    # Add a page if we have "remainder" posts
+    if (scalar(@posts) % $self->{'max_posts'}) {
+        sprintf('%d', scalar(@posts) / $self->{'max_posts'}) + 1
+    }
+    else {
+        sprintf('%d', scalar(@posts) / $self->{'max_posts'})
+    }
 }
 
 1;

templates/sign.html.ep

@@ -11,6 +11,27 @@
       <th>Message:</th>
       <td><%= text_area 'message', cols => 40, rows => 6 %></td>
     </tr>
+    <tr>
+      <th>Swagg CAPTCHA:</th>
+      <td>
+        <%= radio_button answer => 0 %>
+        <%= label_for answer => "I don\'t want to post" %>
+      </td>
+    </tr>
+    <tr>
+      <th>&nbsp;</th>
+      <td>
+        <%= radio_button answer => "false" %>
+        <%= label_for answer => "I\'m ready to post" %>
+      </td>
+    </tr>
+    <tr>
+      <th>&nbsp;</th>
+      <td>
+        <%= radio_button answer => undef %>
+        <%= label_for answer => 'This is spam, do not post' %>
+      </td>
+    </tr>
     <tr>
       <th>&nbsp;</th>
       <td><%= submit_button 'Send it' %></td>