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Module Version: 0.09   Source  


Net::Mollom - interface with Mollom web API


Communicate with the Mollom web API ( via XML-RPC to determine whether user input is Spam, Ham, flame or obscene.

    my $mollom = Net::Mollom->new(
        public_key  => 'a2476604ffba00c907478c8f40b83b03',
        private_key => '42d5448f124966e27db079c8fa92de0f',

    my @server_list = $mollom->server_list();

    my $check = $mollom->check_content(
        post_title => $title,
        post_body  => $text,
    if ($check->is_spam) {
        warn "someone's trying to sell us v1@grA!";
    } elsif ($check->is_unsure) {

        # show them a CAPTCHA to see if they are really human
        my $captcha_url = $mollom->get_image_captcha();
    } elsif ($check->quality < .5) {
        warn "someone's trying to flame us!";

If you have any questions about how any of the methods work, please consult the Mollom API documentation -



This creates a new NET::Mollom object for communication. It takes the following named arguments:



Check to make sure that Mollom recognizes your public and private keys. Returns true if successful, false otherwise. This is not necessary to use in your application, but can be used when doing initial development or testing.

    if( $mollom->verify_key ) {
        # go a head and do stuff
    } else {
        # doh! you screwed up somewhere


Check some content for spamminess and quality. Takes the following optional named arguments:

Returns a Net::Mollom::ContentCheck object.

    my $check = $mollom->check_content(
        post_title  => $title,
        post_body   => $body,
        author_name => 'Michael Peters',
        author_mail => '',
        author_id   => 12345,


This is the Mollom assigned session id. If you've made a call to check_content() it will be set by Mollom and you must pass it later to any calls you make to send_feedback(), get_image_captcha(), get_audio_captcha() or check_captcha(). If you use the same Mollom object that made the check_content() call then you don't need to do anything since it will remember that for you. But in most web applications the next request by a user will not be served by the next process or even the next server, so there's no guarantee. You need to store and remember this mollom session_id on your own.


Send feedback to Mollom about their rating of your content. Take sthe following optional named parameters:



Returns the URL of an image CAPTCHA. This should only be called if the last message checked was marked is_unsure. Not for is_spam or is_ham. It takes the following optional parameters:


Returns the URL of an audio CAPTCHA (mp3 file). This should only be called if the last message checked was marked is_unsure. Not for is_spam or is_ham. It takes the following optional parameters:


Check that what the user entered matches the last CAPTCHA that Mollom sent as part of this session. Takes the following named arguments:

Returns true if correct, false otherwise.


This method will ask Mollom what servers to use. The list of servers is saved in the Net::Mollom package and reused on subsequent calls to the API. Normally you won't need to call this method on it's own since it will be called for you when you use another part of the API.

    my @servers = $mollom->server_list();

    # or if you've saved the list in a more permanent data store


This method gets your Mollom usage statistics. It takes the following required named parameters:

Will return the count for the specific statistic type you requested.


Any object method can throw a Net::Mollom::Exception object (using Exception::Class underneath).

The following exceptions are possible:


This happens when we've exhausted the list available servers and we've reached our attempt_limit for getting more.


There was some kind of problem communicating with the Mollom service. This is not a network error, but somehow we're not talking to it in a language it can understand (maybe an API change or bug in Net::Mollom, etc).


There was some kind of problem communicating with the Mollom service. This could be a network error or an XML::RPC error.


Michael Peters, <mpeters at>


Please report any bugs or feature requests to bug-net-mollom at, or through the web interface at I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.


You can find documentation for this module with the perldoc command.

    perldoc Net::Mollom

You can also look for information at:



Copyright 2009 Michael Peters, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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