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<?php
/**
* This is a shell plugin for SPAM filtering. It does almost nothing, but serves as the template
* for more robust SPAM filters.
* @author Stephen Billard (sbillard)
* @package plugins
* @subpackage spam
*/
$plugin_is_filter = 5 | CLASS_PLUGIN;
$plugin_description = gettext("Trivial SPAM filter.");
$plugin_author = "Stephen Billard (sbillard)";
$plugin_disable = (isset($_zp_spamFilter) && !extensionEnabled('trivialSpam')) ? sprintf(gettext('Only one SPAM handler plugin may be enabled. <a href="#%1$s"><code>%1$s</code></a> is already enabled.'), $_zp_spamFilter->name) : '';
$option_interface = 'zpTrivialSpam';
if ($plugin_disable) {
enableExtension('trivialSpam', 0);
} else {
$_zp_spamFilter = new zpTrivialSpam();
}
/**
* This implements the standard SpamFilter class for the none spam filter.
*
* Note that this filter will always pass comments from users with "manage" rights
* on the commented object.
*
*/
class zpTrivialSpam {
var $name = 'trivialSpam';
/**
* The SpamFilter class instantiation function.
*
* @return SpamFilter
*/
function __construct() {
if (OFFSET_PATH == 2)
setOptionDefault('spamFilter_none_action', 'pass');
}
function displayName() {
return $this->name;
}
/**
* The admin options interface
* called from admin Options tab
* returns an array of the option names the theme supports
* the array is indexed by the option name. The value for each option is an array:
* 'type' => 0 says for admin to use a standard textbox for the option
* 'type' => 1 says for admin to use a standard checkbox for the option
* 'type' => OPTION_TYPE_CUSTOM will cause admin to call handleOption to generate the HTML for the option
* 'desc' => text to be displayed for the option description.
*
* @return array
*/
function getOptionsSupported() {
return array(gettext('Action') => array('key' => 'spamFilter_none_action', 'type' => OPTION_TYPE_SELECTOR,
'selections' => array(gettext('pass') => 'pass', gettext('moderate') => 'moderate', gettext('reject') => 'reject'),
'desc' => gettext('This action will be taken for all messages.')));
}
/**
* Handles custom formatting of options for Admin
*
* @param string $option the option name of the option to be processed
* @param mixed $currentValue the current value of the option (the "before" value)
*/
function handleOption($option, $currentValue) {
}
/**
* The function for processing a message to see if it might be SPAM
* returns:
* 0 if the message is SPAM
* 1 if the message might be SPAM (it will be marked for moderation)
* 2 if the message is not SPAM
*
* @param string $author Author field from the posting
* @param string $email Email field from the posting
* @param string $website Website field from the posting
* @param string $body The text of the comment
* @param string $receiver The object on which the post was made
* @param string $ip the IP address of the comment poster
*
* @return int
*/
function filterMessage($author, $email, $website, $body, $receiver, $ip) {
if (zp_loggedin($receiver->manage_rights) || $receiver->isMyItem($receiver->manage_some_rights)) { // trust "managers"
return 2;
}
$strategy = getOption('spamFilter_none_action');
switch ($strategy) {
case 'reject': return 0;
case 'moderate': return 1;
}
return 2;
}
}
?>
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