LogPage.php

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<?php
class LogPage {
    const DELETED_ACTION = 1;
    const DELETED_COMMENT = 2;
    const DELETED_USER = 4;
    const DELETED_RESTRICTED = 8;
    // Convenience fields
    const SUPPRESSED_USER = 12;
    const SUPPRESSED_ACTION = 9;
    /* @access private */
    var $type, $action, $comment, $params;

    var $doer;

    var $target;

    /* @access public */
    var $updateRecentChanges, $sendToUDP;

    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 );
        $log_id = $dbw->nextSequenceValue( 'logging_log_id_seq' );

        $this->timestamp = $now = wfTimestampNow();
        $data = array(
            'log_id' => $log_id,
            'log_type' => $this->type,
            'log_action' => $this->action,
            'log_timestamp' => $dbw->timestamp( $now ),
            'log_user' => $this->doer->getId(),
            'log_user_text' => $this->doer->getName(),
            'log_namespace' => $this->target->getNamespace(),
            'log_title' => $this->target->getDBkey(),
            'log_page' => $this->target->getArticleID(),
            'log_comment' => $this->comment,
            'log_params' => $this->params
        );
        $dbw->insert( 'logging', $data, __METHOD__ );
        $newId = !is_null( $log_id ) ? $log_id : $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->notifyRC2UDP();
        }
        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, LogPage::validTypes() );
    }

    public static function logName( $type ) {
        global $wgLogNames;

        if ( isset( $wgLogNames[$type] ) ) {
            return str_replace( '_', ' ', wfMessage( $wgLogNames[$type] )->text() );
        } else {
            // Bogus log types? Perhaps an extension was removed.
            return $type;
        }
    }

    public static function logHeader( $type ) {
        global $wgLogHeaders;
        return wfMessage( $wgLogHeaders[$type] )->parse();
    }

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

        if ( is_null( $skin ) ) {
            $langObj = $wgContLang;
            $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 {
                    $details = '';
                    array_unshift( $params, $titleLink );

                    // User suppression
                    if ( preg_match( '/^(block|suppress)\/(block|reblock)$/', $key ) ) {
                        if ( $skin ) {
                            $params[1] = '<span class="blockExpiry" title="&lrm;' . htmlspecialchars( $params[1] ) . '">' .
                                $wgLang->translateBlockExpiry( $params[1] ) . '</span>';
                        } else {
                            $params[1] = $wgContLang->translateBlockExpiry( $params[1] );
                        }

                        $params[2] = isset( $params[2] ) ?
                            self::formatBlockFlags( $params[2], $langObj ) : '';
                    // Page protections
                    } elseif ( $type == 'protect' && count( $params ) == 3 ) {
                        // Restrictions and expiries
                        if ( $skin ) {
                            $details .= $wgLang->getDirMark() . htmlspecialchars( " {$params[1]}" );
                        } else {
                            $details .= " {$params[1]}";
                        }

                        // Cascading flag...
                        if ( $params[2] ) {
                            $details .= ' [' . wfMessage( 'protect-summary-cascade' )->inLanguage( $langObj )->text() . ']';
                        }
                    }

                    $rv = wfMessage( $wgLogActions[$key] )->rawParams( $params )->inLanguage( $langObj )->escaped() . $details;
                }
            }
        } 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();
        }

        switch ( $type ) {
            case 'move':
                $titleLink = Linker::link(
                    $title,
                    htmlspecialchars( $title->getPrefixedText() ),
                    array(),
                    array( 'redirect' => 'no' )
                );

                $targetTitle = Title::newFromText( $params[0] );

                if ( !$targetTitle ) {
                    # Workaround for broken database
                    $params[0] = htmlspecialchars( $params[0] );
                } else {
                    $params[0] = Linker::link(
                        $targetTitle,
                        htmlspecialchars( $params[0] )
                    );
                }
                break;
            case 'block':
                if ( substr( $title->getText(), 0, 1 ) == '#' ) {
                    $titleLink = $title->getText();
                } else {
                    // @todo Store the user identifier in the parameters
                    // to make this faster for future log entries
                    $id = User::idFromName( $title->getText() );
                    $titleLink = Linker::userLink( $id, $title->getText() )
                        . Linker::userToolLinks( $id, $title->getText(), false, Linker::TOOL_LINKS_NOBLOCK );
                }
                break;
            case 'merge':
                $titleLink = Linker::link(
                    $title,
                    $title->getPrefixedText(),
                    array(),
                    array( 'redirect' => 'no' )
                );
                $params[0] = Linker::link(
                    Title::newFromText( $params[0] ),
                    htmlspecialchars( $params[0] )
                );
                $params[1] = $lang->timeanddate( $params[1] );
                break;
            default:
                if ( $title->isSpecialPage() ) {
                    list( $name, $par ) = SpecialPageFactory::resolveAlias( $title->getDBkey() );

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

        return $titleLink;
    }

    public function addEntry( $action, $target, $comment, $params = array(), $doer = null ) {
        global $wgContLang;

        if ( !is_array( $params ) ) {
            $params = array( $params );
        }

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

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

        # Truncate for whole multibyte characters.
        $comment = $wgContLang->truncate( $comment, 255 );

        $this->action = $action;
        $this->target = $target;
        $this->comment = $comment;
        $this->params = LogPage::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 );

        $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; // nothing
        }

        $data = array();

        foreach ( $values as $value ) {
            $data[] = array(
                '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 array();
        } else {
            return explode( "\n", $blob );
        }
    }

    public static function formatBlockFlags( $flags, $lang ) {
        $flags = trim( $flags );
        if ( $flags === '' ) {
            return ''; //nothing to do
        }
        $flags = explode( ',', $flags );

        for ( $i = 0; $i < count( $flags ); $i++ ) {
            $flags[$i] = self::formatBlockFlag( $flags[$i], $lang );
        }
        return wfMessage( 'parentheses' )->inLanguage( $lang )
            ->rawParams( $lang->commaList( $flags ) )->escaped();
    }

    public static function formatBlockFlag( $flag, $lang ) {
        static $messages = array();

        if ( !isset( $messages[$flag] ) ) {
            $messages[$flag] = htmlspecialchars( $flag ); // Fallback

            // For grepping. The following core messages can be used here:
            // * block-log-flags-angry-autoblock
            // * block-log-flags-anononly
            // * block-log-flags-hiddenname
            // * block-log-flags-noautoblock
            // * block-log-flags-nocreate
            // * block-log-flags-noemail
            // * block-log-flags-nousertalk
            $msg = wfMessage( 'block-log-flags-' . $flag )->inLanguage( $lang );

            if ( $msg->exists() ) {
                $messages[$flag] = $msg->escaped();
            }
        }

        return $messages[$flag];
    }

    public function getName() {
        global $wgLogNames;

        // BC
        if ( isset( $wgLogNames[$this->type] ) ) {
            $key = $wgLogNames[$this->type];
        } else {
            $key = 'log-name-' . $this->type;
        }

        return wfMessage( $key );
    }

    public function getDescription() {
        global $wgLogHeaders;
        // BC
        if ( isset( $wgLogHeaders[$this->type] ) ) {
            $key = $wgLogHeaders[$this->type];
        } else {
            $key = 'log-description-' . $this->type;
        }
        return wfMessage( $key );
    }

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

    public function isRestricted() {
        $restriction = $this->getRestriction();
        return $restriction !== '' && $restriction !== '*';
    }

}