FoxHoneyPot
Questions answered by this recipe
How can I stop bots from submitting Fox forms, for forms which are accessible to the public?
Description
Add an input field acting as a honey pot for bots to a Fox form. If a bot posts anything into that field, the form submission aborts
Installation
Add the following to config.php, somewhere above where fox.php is included:
//foxhoneypot directive and filter function, set input a_password as hidden bot trap
Markup('foxhoneypot','directives','/\\(:foxhoneypot:\\)/',"Fox_Honeypot");
function Fox_Honeypot() {
$out = '<input type="hidden" name="foxfilter" value="pot" />'.
'<input type="text" name="a_password" style="display:none !important" tabindex="-1" autocomplete="off">';
return Keep($out);
}
$FoxFilterFunctions['pot'] = 'Fox_Honeypot_Filter';
function Fox_Honeypot_Filter($pagename, $fx) {
if (!empty($fx['a_password'])) FoxAbort($pagename, 'Are you a bot?');
return $fx;
}
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Add to any Fox form this directive:
(:foxhoneypot:)
This adds to a Fox form an input field named 'a_password', which is not visible to a user, but may attract a bot to put something into. A hidden input field 'foxfilter' is added too. On submission it will be checked by a FoxFilter function, which will abort the submission if there is content in that field.
Change log / Release notes
- 2024-04-15: initial release
See also
Contributors
Comments
See discussion at FoxHoneyPot-Talk?
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