README

Simple spam filter for Silverstripe using Akismet

Also, please report any issues you may encounter, as it helps us all out!

Credits and Authors

Damian Mooyman - https://github.com/tractorcow/silverstripe-akismet
Attribution to Tijs Verkoyen for his Akismet API wrapper - https://github.com/tijsverkoyen/Akismet

Requirements

SilverStripe 3.1
Silverstripe SpamProtection module - https://github.com/silverstripe/silverstripe-spamprotection
Tijs Verkoyen's Akismet API wrapper - https://github.com/tijsverkoyen/Akismet
PHP 5.3

Installation Instructions

This module can be easily installed on any already-developed website

If using composer installation can be done as below

composer require tractorcow/silverstripe-akismet 3.1.x-dev

If not using composer you'll need to download the akismet module, spam protector, and akismet
Configure your environment to set 'AkismetSpamProtector' as the protector class, and get an API key from akismet.com and set in the site against one of the following ways.

config.yml:

---
Name: myspamprotection
---
FormSpamProtectionExtension:
  default_spam_protector: AkismetSpamProtector
AkismetSpamProtector:
  api_key: 5555dddd55d5d

_config.php:

Config::inst()->update('FormSpamProtectionExtension', 'default_spam_protector', 'AkismetSpamProtector');
AkismetSpamProtector::set_api_key('5555dddd55d5d');

_ss_environment.php:

define('SS_AKISMET_API_KEY', '5555dddd55d5d');
// and set AkismetSpamProtector as your spam protector using one of the above methods

Testing

By default, spam protection is disabled for users with ADMIN priviliges. There is also an option to disable spam protection for all logged in users. In order to disable this for testing purposes, you can temporarily modify these options in your development environment as below:

if(!Director::isLive()) {
	Config::inst()->remove('AkismetSpamProtector', 'bypass_permission');
	Config::inst()->remove('AkismetSpamProtector', 'bypass_members');
}

In order to check that your form is blocking spam correctly, you can always set 'viagra-test-123' as the author and Akismet will always mark this as spam.

Comments

If you're using Comments module you can quickly set akismet to filter these out by adding the CommentSpamProtection extension to the CommentingController

config.yml

CommentingController:
  extensions:
    - CommentSpamProtection

_config.php

CommentingController::add_extension('CommentSpamProtection');

Custom Form Usage

To enable spam protection in your custom forms, call the enableSpamProtection method with your field names mapped to the akismet fields:

$form  = new Form($this, 'Form', $fields, $actions, $validator);
$form->enableSpamProtection(array(
  'mapping' => array(
    'Name' => 'authorName',
    'Email' => 'authorMail',
    'Comments' => 'body'
    )
  )
);

Important notes for those in the EU

Because of the way Akismet works (message, author, and other information sent to a third party) in some countries it's legally necessary to notify and gain the user's permission prior to verification.

To create a checkbox style authorisation prompt for this field set the following configuration option:

config.yml

AkismetSpamProtector:
  require_confirmation: true

_config.php

Config::inst()->update('AkismetSpamProtector', 'require_confirmation', true);

License

Revised BSD License

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
The name of Damian Mooyman may not be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

tractorcow / silverstripe-akismet

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