forked from GNUsocial/gnu-social
305 lines
8.7 KiB
PHP
305 lines
8.7 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2011,2012, StatusNet, Inc.
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*
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* ActivitySpam Plugin
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*
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* PHP version 5
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Spam
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011,2012 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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// This check helps protect against security problems;
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// your code file can't be executed directly from the web.
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exit(1);
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}
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/**
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* Check new notices with activity spam service.
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*
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* @category Spam
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011,2012 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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class ActivitySpamPlugin extends Plugin
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{
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public $server = null;
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public $hideSpam = false;
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const REVIEWSPAM = 'ActivitySpamPlugin::REVIEWSPAM';
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const TRAINSPAM = 'ActivitySpamPlugin::TRAINSPAM';
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/**
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* Initializer
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function initialize()
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{
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$this->filter = new SpamFilter(common_config('activityspam', 'server'),
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common_config('activityspam', 'consumerkey'),
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common_config('activityspam', 'secret'));
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$this->hideSpam = common_config('activityspam', 'hidespam');
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return true;
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}
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/**
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* Database schema setup
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*
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* @see Schema
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* @see ColumnDef
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function onCheckSchema()
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{
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$schema = Schema::get();
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$schema->ensureTable('spam_score', Spam_score::schemaDef());
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Spam_score::upgrade();
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return true;
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}
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/**
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* Load related modules when needed
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*
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* @param string $cls Name of the class to be loaded
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function onAutoload($cls)
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{
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$dir = dirname(__FILE__);
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switch ($cls)
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{
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case 'TrainAction':
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case 'SpamAction':
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include_once $dir . '/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
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return false;
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case 'Spam_score':
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include_once $dir . '/'.$cls.'.php';
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return false;
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case 'SpamFilter':
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case 'SpamNoticeStream':
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case 'TrainSpamForm':
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case 'TrainHamForm':
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include_once $dir . '/'.strtolower($cls).'.php';
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return false;
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default:
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return true;
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}
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}
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/**
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* When a notice is saved, check its spam score
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*
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* @param Notice $notice Notice that was just saved
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function onEndNoticeSave($notice)
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{
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try {
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$result = $this->filter->test($notice);
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$score = Spam_score::saveNew($notice, $result);
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$this->log(LOG_INFO, "Notice " . $notice->id . " has spam score " . $score->score);
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} catch (Exception $e) {
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// Log but continue
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$this->log(LOG_ERR, $e->getMessage());
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}
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return true;
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}
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function onNoticeDeleteRelated($notice) {
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$score = Spam_score::staticGet('notice_id', $notice->id);
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if (!empty($score)) {
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$score->delete();
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}
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return true;
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}
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function onUserRightsCheck($profile, $right, &$result) {
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switch ($right) {
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case self::REVIEWSPAM:
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case self::TRAINSPAM:
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$result = ($profile->hasRole(Profile_role::MODERATOR) || $profile->hasRole('modhelper'));
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return false;
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default:
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return true;
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}
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}
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function onGetSpamFilter(&$filter) {
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$filter = $this->filter;
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return false;
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}
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function onEndShowNoticeOptionItems($nli)
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{
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$profile = Profile::current();
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if (!empty($profile) && $profile->hasRight(self::TRAINSPAM)) {
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$notice = $nli->getNotice();
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$out = $nli->getOut();
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if (!empty($notice)) {
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$score = $this->getScore($notice);
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if (empty($score)) {
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$this->debug("No score for notice " . $notice->id);
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// XXX: show a question-mark or something
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} else if ($score->is_spam) {
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$form = new TrainHamForm($out, $notice);
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$form->show();
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} else if (!$score->is_spam) {
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$form = new TrainSpamForm($out, $notice);
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$form->show();
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}
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}
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}
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return true;
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}
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/**
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* Map URLs to actions
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*
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* @param Net_URL_Mapper $m path-to-action mapper
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*
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* @return boolean hook value; true means continue processing, false means stop.
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*/
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function onRouterInitialized($m)
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{
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$m->connect('main/train/spam',
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array('action' => 'train', 'category' => 'spam'));
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$m->connect('main/train/ham',
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array('action' => 'train', 'category' => 'ham'));
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$m->connect('main/spam',
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array('action' => 'spam'));
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return true;
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}
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function onEndShowStyles($action)
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{
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$action->element('style', null,
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'.form-train-spam input.submit { background: url('.$this->path('icons/bullet_black.png').') no-repeat 0px 0px } ' . "\n" .
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'.form-train-ham input.submit { background: url('.$this->path('icons/exclamation.png').') no-repeat 0px 0px } ');
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return true;
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}
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function onEndPublicGroupNav($nav)
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{
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$user = common_current_user();
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if (!empty($user) && $user->hasRight(self::REVIEWSPAM)) {
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$nav->out->menuItem(common_local_url('spam'),
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_m('MENU','Spam'),
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// TRANS: Menu item title in search group navigation panel.
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_('Notices marked as spam'),
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$nav->actionName == 'spam',
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'nav_timeline_spam');
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}
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return true;
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}
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function onPluginVersion(&$versions)
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{
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$versions[] = array('name' => 'ActivitySpam',
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'version' => STATUSNET_VERSION,
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'author' => 'Evan Prodromou',
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'homepage' => 'http://status.net/wiki/Plugin:ActivitySpam',
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'description' =>
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_m('Test notices against the Activity Spam service.'));
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return true;
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}
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function getScore($notice)
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{
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$score = Spam_score::staticGet('notice_id', $notice->id);
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if (!empty($score)) {
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return $score;
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}
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try {
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$result = $this->filter->test($notice);
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$score = Spam_score::saveNew($notice, $result);
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$this->log(LOG_INFO, "Notice " . $notice->id . " has spam score " . $score->score);
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} catch (Exception $e) {
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// Log but continue
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$this->log(LOG_ERR, $e->getMessage());
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$score = null;
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}
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return $score;
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}
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function onStartReadWriteTables(&$alwaysRW, &$rwdb) {
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$alwaysRW[] = 'spam_score';
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return true;
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}
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function onEndNoticeInScope($notice, $profile, &$bResult)
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{
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if ($this->hideSpam) {
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if ($bResult) {
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$score = $this->getScore($notice);
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if ($score->is_spam) {
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if (empty($profile) ||
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($profile->id !== $notice->profile_id &&
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!$profile->hasRight(self::REVIEWSPAM))) {
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$bResult = false;
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}
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}
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}
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}
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return true;
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}
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}
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