/** * Calculates the Athena value * Calls all the filters, works out the probability of each contributing to the spam level, and combines them * * @param $editPage EditPage * @param $text string * @param $summary string * @return double */ static function calculateAthenaValue($editPage, $text, $summary) { global $wgUser, $wgAthenaTraining; // Get title $titleObj = $editPage->getTitle(); $title = $titleObj->getTitleValue()->getText(); // Get filter results $diffLang = AthenaFilters::differentLanguage($text); $deleted = AthenaFilters::wasDeleted($titleObj); $wanted = AthenaFilters::isWanted($titleObj); $userAge = AthenaFilters::userAge(); $titleLength = AthenaFilters::titleLength($titleObj); $namespace = AthenaFilters::getNamespace($titleObj); $syntaxType = AthenaFilters::syntaxType($text); $linksPercentage = AthenaFilters::linkPercentage($text); // If not training, work out probabilities if (!$wgAthenaTraining) { // Array to store probability info $probabilityArray = array(); $spam = null; $notspam = null; // Get the statistics table's contents $stats = AthenaHelper::getStatistics(); // Calculate probability of spam AthenaHelper::calculateProbability_Spam($stats, $probabilityArray); $lnProbSpamNotSpam = log($probabilityArray['ac_p_spam'] / $probabilityArray['ac_p_not_spam']); /* start different language */ AthenaHelper::calculateProbability_Language($diffLang, $stats, $probabilityArray); $sigma = log($probabilityArray['ac_p_langgivenspam'] / $probabilityArray['ac_p_langgivennotspam']); /* end different language */ /* start deleted */ AthenaHelper::calculateProbability_Deleted($deleted, $stats, $probabilityArray); $sigma += log($probabilityArray['ac_p_deletedgivenspam'] / $probabilityArray['ac_p_deletedgivennotspam']); /* end deleted */ /* start wanted */ AthenaHelper::calculateProbability_Wanted($wanted, $stats, $probabilityArray); $sigma += log($probabilityArray['ac_p_wantedgivenspam'] / $probabilityArray['ac_p_wantedgivennotspam']); /* end wanted */ /* start user type */ AthenaHelper::calculateProbability_User($userAge, $stats, $probabilityArray); $sigma += log($probabilityArray['ac_p_usergivenspam'] / $probabilityArray['ac_p_usergivennotspam']); /* end user type */ /* start title length */ AthenaHelper::calculateProbability_Length($titleLength, $stats, $probabilityArray); $sigma += log($probabilityArray['ac_p_titlelengthgivenspam'] / $probabilityArray['ac_p_titlelengthgivennotspam']); /* end title length */ /* start namespace */ AthenaHelper::calculateProbability_Namespace($namespace, $stats, $probabilityArray); $sigma += log($probabilityArray['ac_p_namespacegivenspam'] / $probabilityArray['ac_p_namespacegivennotspam']); /* end namespace */ /* start syntax */ AthenaHelper::calculateProbability_Syntax($syntaxType, $stats, $probabilityArray); $sigma += log($probabilityArray['ac_p_syntaxgivenspam'] / $probabilityArray['ac_p_syntaxgivennotspam']); /* end syntax */ /* start links */ AthenaHelper::calculateProbability_Links($linksPercentage, $stats, $probabilityArray); $sigma += log($probabilityArray['ac_p_linksgivenspam'] / $probabilityArray['ac_p_linksgivennotspam']); /* end links */ $prob = $lnProbSpamNotSpam + $sigma; //wfErrorLog("------------------------------------------------", '/var/www/html/a/extensions/Athena/data/debug.log'); //wfErrorLog("Probability is $prob", '/var/www/html/a/extensions/Athena/data/debug.log'); } else { // al_value is double unsigned not null, so let's just set to 0 and let the code ignore it later on $prob = 0; $probabilityArray = null; } $links = AthenaFilters::numberOfLinks($text); $logArray = AthenaHelper::prepareLogArray($prob, $userAge, $links, $linksPercentage, $syntaxType, $diffLang, $deleted, $wanted); $detailsArray = AthenaHelper::preparePageDetailsArray($namespace, $title, $text, $summary, $wgUser->getId()); AthenaHelper::logAttempt($logArray, $detailsArray, $probabilityArray); AthenaHelper::updateStats($logArray, $titleObj); return $prob; }