LogPage.php

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<?php
use MediaWiki\MediaWikiServices;

class LogPage {
    const DELETED_ACTION = 1;
    const DELETED_COMMENT = 2;
    const DELETED_USER = 4;
    const DELETED_RESTRICTED = 8;

    // Convenience fields
    const SUPPRESSED_USER = self::DELETED_USER | self::DELETED_RESTRICTED;
    const SUPPRESSED_ACTION = self::DELETED_ACTION | self::DELETED_RESTRICTED;

    public $updateRecentChanges;

    public $sendToUDP;

    private $ircActionText;

    private $actionText;

    private $type;

    private $action;

    private $comment;

    private $params;

    private $doer;

    private $target;

    public function __construct( $type, $rc = true, $udp = 'skipUDP' ) {
        $this->type = $type;
        $this->updateRecentChanges = $rc;
        $this->sendToUDP = ( $udp == 'UDP' );
    }

    protected function saveContent() {
        global $wgLogRestrictions;

        $dbw = wfGetDB( DB_MASTER );

        $now = wfTimestampNow();
        $data = [
            'log_type' => $this->type,
            'log_action' => $this->action,
            'log_timestamp' => $dbw->timestamp( $now ),
            'log_namespace' => $this->target->getNamespace(),
            'log_title' => $this->target->getDBkey(),
            'log_page' => $this->target->getArticleID(),
            'log_params' => $this->params
        ];
        $data += MediaWikiServices::getInstance()->getCommentStore()->insert(
            $dbw,
            'log_comment',
            $this->comment
        );
        $data += ActorMigration::newMigration()->getInsertValues( $dbw, 'log_user', $this->doer );
        $dbw->insert( 'logging', $data, __METHOD__ );
        $newId = $dbw->insertId();

        # And update recentchanges
        if ( $this->updateRecentChanges ) {
            $titleObj = SpecialPage::getTitleFor( 'Log', $this->type );

            RecentChange::notifyLog(
                $now, $titleObj, $this->doer, $this->getRcComment(), '',
                $this->type, $this->action, $this->target, $this->comment,
                $this->params, $newId, $this->getRcCommentIRC()
            );
        } elseif ( $this->sendToUDP ) {
            # Don't send private logs to UDP
            if ( isset( $wgLogRestrictions[$this->type] ) && $wgLogRestrictions[$this->type] != '*' ) {
                return $newId;
            }

            # Notify external application via UDP.
            # We send this to IRC but do not want to add it the RC table.
            $titleObj = SpecialPage::getTitleFor( 'Log', $this->type );
            $rc = RecentChange::newLogEntry(
                $now, $titleObj, $this->doer, $this->getRcComment(), '',
                $this->type, $this->action, $this->target, $this->comment,
                $this->params, $newId, $this->getRcCommentIRC()
            );
            $rc->notifyRCFeeds();
        }

        return $newId;
    }

    public function getRcComment() {
        $rcComment = $this->actionText;

        if ( $this->comment != '' ) {
            if ( $rcComment == '' ) {
                $rcComment = $this->comment;
            } else {
                $rcComment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() .
                    $this->comment;
            }
        }

        return $rcComment;
    }

    public function getRcCommentIRC() {
        $rcComment = $this->ircActionText;

        if ( $this->comment != '' ) {
            if ( $rcComment == '' ) {
                $rcComment = $this->comment;
            } else {
                $rcComment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() .
                    $this->comment;
            }
        }

        return $rcComment;
    }

    public function getComment() {
        return $this->comment;
    }

    public static function validTypes() {
        global $wgLogTypes;

        return $wgLogTypes;
    }

    public static function isLogType( $type ) {
        return in_array( $type, self::validTypes() );
    }

    public static function actionText( $type, $action, $title = null, $skin = null,
        $params = [], $filterWikilinks = false
    ) {
        global $wgLang, $wgLogActions;

        if ( is_null( $skin ) ) {
            $langObj = MediaWikiServices::getInstance()->getContentLanguage();
            $langObjOrNull = null;
        } else {
            $langObj = $wgLang;
            $langObjOrNull = $wgLang;
        }

        $key = "$type/$action";

        if ( isset( $wgLogActions[$key] ) ) {
            if ( is_null( $title ) ) {
                $rv = wfMessage( $wgLogActions[$key] )->inLanguage( $langObj )->escaped();
            } else {
                $titleLink = self::getTitleLink( $type, $langObjOrNull, $title, $params );

                if ( count( $params ) == 0 ) {
                    $rv = wfMessage( $wgLogActions[$key] )->rawParams( $titleLink )
                        ->inLanguage( $langObj )->escaped();
                } else {
                    array_unshift( $params, $titleLink );

                    $rv = wfMessage( $wgLogActions[$key] )->rawParams( $params )
                            ->inLanguage( $langObj )->escaped();
                }
            }
        } else {
            global $wgLogActionsHandlers;

            if ( isset( $wgLogActionsHandlers[$key] ) ) {
                $args = func_get_args();
                $rv = call_user_func_array( $wgLogActionsHandlers[$key], $args );
            } else {
                wfDebug( "LogPage::actionText - unknown action $key\n" );
                $rv = "$action";
            }
        }

        // For the perplexed, this feature was added in r7855 by Erik.
        // The feature was added because we liked adding [[$1]] in our log entries
        // but the log entries are parsed as Wikitext on RecentChanges but as HTML
        // on Special:Log. The hack is essentially that [[$1]] represented a link
        // to the title in question. The first parameter to the HTML version (Special:Log)
        // is that link in HTML form, and so this just gets rid of the ugly [[]].
        // However, this is a horrible hack and it doesn't work like you expect if, say,
        // you want to link to something OTHER than the title of the log entry.
        // The real problem, which Erik was trying to fix (and it sort-of works now) is
        // that the same messages are being treated as both wikitext *and* HTML.
        if ( $filterWikilinks ) {
            $rv = str_replace( '[[', '', $rv );
            $rv = str_replace( ']]', '', $rv );
        }

        return $rv;
    }

    protected static function getTitleLink( $type, $lang, $title, &$params ) {
        if ( !$lang ) {
            return $title->getPrefixedText();
        }

        $services = MediaWikiServices::getInstance();
        $linkRenderer = $services->getLinkRenderer();
        if ( $title->isSpecialPage() ) {
            list( $name, $par ) = $services->getSpecialPageFactory()->
                resolveAlias( $title->getDBkey() );

            # Use the language name for log titles, rather than Log/X
            if ( $name == 'Log' ) {
                $logPage = new LogPage( $par );
                $titleLink = $linkRenderer->makeLink( $title, $logPage->getName()->text() );
                $titleLink = wfMessage( 'parentheses' )
                    ->inLanguage( $lang )
                    ->rawParams( $titleLink )
                    ->escaped();
            } else {
                $titleLink = $linkRenderer->makeLink( $title );
            }
        } else {
            $titleLink = $linkRenderer->makeLink( $title );
        }

        return $titleLink;
    }

    public function addEntry( $action, $target, $comment, $params = [], $doer = null ) {
        if ( !is_array( $params ) ) {
            $params = [ $params ];
        }

        if ( $comment === null ) {
            $comment = '';
        }

        # Trim spaces on user supplied text
        $comment = trim( $comment );

        $this->action = $action;
        $this->target = $target;
        $this->comment = $comment;
        $this->params = self::makeParamBlob( $params );

        if ( $doer === null ) {
            global $wgUser;
            $doer = $wgUser;
        } elseif ( !is_object( $doer ) ) {
            $doer = User::newFromId( $doer );
        }

        $this->doer = $doer;

        $logEntry = new ManualLogEntry( $this->type, $action );
        $logEntry->setTarget( $target );
        $logEntry->setPerformer( $doer );
        $logEntry->setParameters( $params );
        // All log entries using the LogPage to insert into the logging table
        // are using the old logging system and therefore the legacy flag is
        // needed to say the LogFormatter the parameters have numeric keys
        $logEntry->setLegacy( true );

        $formatter = LogFormatter::newFromEntry( $logEntry );
        $context = RequestContext::newExtraneousContext( $target );
        $formatter->setContext( $context );

        $this->actionText = $formatter->getPlainActionText();
        $this->ircActionText = $formatter->getIRCActionText();

        return $this->saveContent();
    }

    public function addRelations( $field, $values, $logid ) {
        if ( !strlen( $field ) || empty( $values ) ) {
            return false;
        }

        $data = [];

        foreach ( $values as $value ) {
            $data[] = [
                'ls_field' => $field,
                'ls_value' => $value,
                'ls_log_id' => $logid
            ];
        }

        $dbw = wfGetDB( DB_MASTER );
        $dbw->insert( 'log_search', $data, __METHOD__, [ 'IGNORE' ] );

        return true;
    }

    public static function makeParamBlob( $params ) {
        return implode( "\n", $params );
    }

    public static function extractParams( $blob ) {
        if ( $blob === '' ) {
            return [];
        } else {
            return explode( "\n", $blob );
        }
    }

    public function getName() {
        global $wgLogNames;

        // BC
        $key = $wgLogNames[$this->type] ?? 'log-name-' . $this->type;

        return wfMessage( $key );
    }

    public function getDescription() {
        global $wgLogHeaders;
        // BC
        $key = $wgLogHeaders[$this->type] ?? 'log-description-' . $this->type;

        return wfMessage( $key );
    }

    public function getRestriction() {
        global $wgLogRestrictions;
        // '' always returns true with $user->isAllowed()
        return $wgLogRestrictions[$this->type] ?? '';
    }

    public function isRestricted() {
        $restriction = $this->getRestriction();

        return $restriction !== '' && $restriction !== '*';
    }
}