/** * Common implementation for the APIEditBeforeSave, EditFilterMerged * and EditFilterMergedContent hooks. * * @param IContextSource $context the context of the edit * @param Content|null $content the new Content generated by the edit * @param string $text new page content (subject of filtering) * @param Status $status Error message to return * @param string $summary Edit summary for page * @param bool $minoredit whether this is a minor edit according to the user. * * @return bool */ public static function filterEdit(IContextSource $context, $content, $text, Status $status, $summary, $minoredit) { // Load vars $vars = new AbuseFilterVariableHolder(); $title = $context->getTitle(); // Some edits are running through multiple hooks, but we only want to filter them once if (isset($title->editAlreadyFiltered)) { return true; } elseif ($title) { $title->editAlreadyFiltered = true; } self::$successful_action_vars = false; self::$last_edit_page = false; $user = $context->getUser(); // Check for null edits. $oldtext = ''; $oldcontent = null; if ($title instanceof Title && $title->canExist() && $title->exists()) { // Make sure we load the latest text saved in database (bug 31656) $page = $context->getWikiPage(); $revision = $page->getRevision(); if (!$revision) { return true; } if (defined('MW_SUPPORTS_CONTENTHANDLER')) { $oldcontent = $revision->getContent(Revision::RAW); $oldtext = AbuseFilter::contentToString($oldcontent); } else { $oldtext = AbuseFilter::revisionToString($revision, Revision::RAW); } // Cache article object so we can share a parse operation $articleCacheKey = $title->getNamespace() . ':' . $title->getText(); AFComputedVariable::$articleCache[$articleCacheKey] = $page; } else { $page = null; } // Don't trigger for null edits. if ($content && $oldcontent && $oldcontent->equals($content)) { // Compare Content objects if available return true; } else { if (strcmp($oldtext, $text) == 0) { // Otherwise, compare strings return true; } } $vars->addHolders(AbuseFilter::generateUserVars($user), AbuseFilter::generateTitleVars($title, 'ARTICLE')); $vars->setVar('action', 'edit'); $vars->setVar('summary', $summary); $vars->setVar('minor_edit', $minoredit); $vars->setVar('old_wikitext', $oldtext); $vars->setVar('new_wikitext', $text); // TODO: set old_content and new_content vars, use them $vars->addHolders(AbuseFilter::getEditVars($title, $page)); $filter_result = AbuseFilter::filterAction($vars, $title); if (!$filter_result->isOK()) { $status->merge($filter_result); return true; // re-show edit form } self::$successful_action_vars = $vars; self::$last_edit_page = $page; return true; }