SpecialLog.php

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<?php
class SpecialLog extends SpecialPage {
    public function __construct() {
        parent::__construct( 'Log' );
    }

    public function execute( $par ) {
        $this->setHeaders();
        $this->outputHeader();
        $this->getOutput()->addModules( 'mediawiki.userSuggest' );

        $opts = new FormOptions;
        $opts->add( 'type', '' );
        $opts->add( 'user', '' );
        $opts->add( 'page', '' );
        $opts->add( 'pattern', false );
        $opts->add( 'year', null, FormOptions::INTNULL );
        $opts->add( 'month', null, FormOptions::INTNULL );
        $opts->add( 'tagfilter', '' );
        $opts->add( 'offset', '' );
        $opts->add( 'dir', '' );
        $opts->add( 'offender', '' );
        $opts->add( 'subtype', '' );

        // Set values
        $opts->fetchValuesFromRequest( $this->getRequest() );
        if ( $par !== null ) {
            $this->parseParams( $opts, (string)$par );
        }

        # Don't let the user get stuck with a certain date
        if ( $opts->getValue( 'offset' ) || $opts->getValue( 'dir' ) == 'prev' ) {
            $opts->setValue( 'year', '' );
            $opts->setValue( 'month', '' );
        }

        // If the user doesn't have the right permission to view the specific
        // log type, throw a PermissionsError
        // If the log type is invalid, just show all public logs
        $logRestrictions = $this->getConfig()->get( 'LogRestrictions' );
        $type = $opts->getValue( 'type' );
        if ( !LogPage::isLogType( $type ) ) {
            $opts->setValue( 'type', '' );
        } elseif ( isset( $logRestrictions[$type] )
            && !$this->getUser()->isAllowed( $logRestrictions[$type] )
        ) {
            throw new PermissionsError( $logRestrictions[$type] );
        }

        # Handle type-specific inputs
        $qc = [];
        if ( $opts->getValue( 'type' ) == 'suppress' ) {
            $offender = User::newFromName( $opts->getValue( 'offender' ), false );
            if ( $offender && $offender->getId() > 0 ) {
                $qc = [ 'ls_field' => 'target_author_id', 'ls_value' => $offender->getId() ];
            } elseif ( $offender && IP::isIPAddress( $offender->getName() ) ) {
                $qc = [ 'ls_field' => 'target_author_ip', 'ls_value' => $offender->getName() ];
            }
        } else {
            // Allow extensions to add relations to their search types
            Hooks::run(
                'SpecialLogAddLogSearchRelations',
                [ $opts->getValue( 'type' ), $this->getRequest(), &$qc ]
            );
        }

        # Some log types are only for a 'User:' title but we might have been given
        # only the username instead of the full title 'User:username'. This part try
        # to lookup for a user by that name and eventually fix user input. See bug 1697.
        if ( in_array( $opts->getValue( 'type' ), self::getLogTypesOnUser() ) ) {
            # ok we have a type of log which expect a user title.
            $target = Title::newFromText( $opts->getValue( 'page' ) );
            if ( $target && $target->getNamespace() === NS_MAIN ) {
                # User forgot to add 'User:', we are adding it for him
                $opts->setValue( 'page',
                    Title::makeTitleSafe( NS_USER, $opts->getValue( 'page' ) )
                );
            }
        }

        $this->show( $opts, $qc );
    }

    public static function getLogTypesOnUser() {
        static $types = null;
        if ( $types !== null ) {
            return $types;
        }
        $types = [
            'block',
            'newusers',
            'rights',
        ];

        Hooks::run( 'GetLogTypesOnUser', [ &$types ] );
        return $types;
    }

    public function getSubpagesForPrefixSearch() {
        $subpages = $this->getConfig()->get( 'LogTypes' );
        $subpages[] = 'all';
        sort( $subpages );
        return $subpages;
    }

    private function parseParams( FormOptions $opts, $par ) {
        # Get parameters
        $par = $par !== null ? $par : '';
        $parms = explode( '/', $par );
        $symsForAll = [ '*', 'all' ];
        if ( $parms[0] != '' &&
            ( in_array( $par, $this->getConfig()->get( 'LogTypes' ) ) || in_array( $par, $symsForAll ) )
        ) {
            $opts->setValue( 'type', $par );
        } elseif ( count( $parms ) == 2 ) {
            $opts->setValue( 'type', $parms[0] );
            $opts->setValue( 'user', $parms[1] );
        } elseif ( $par != '' ) {
            $opts->setValue( 'user', $par );
        }
    }

    private function show( FormOptions $opts, array $extraConds ) {
        # Create a LogPager item to get the results and a LogEventsList item to format them...
        $loglist = new LogEventsList(
            $this->getContext(),
            null,
            LogEventsList::USE_CHECKBOXES
        );

        $pager = new LogPager(
            $loglist,
            $opts->getValue( 'type' ),
            $opts->getValue( 'user' ),
            $opts->getValue( 'page' ),
            $opts->getValue( 'pattern' ),
            $extraConds,
            $opts->getValue( 'year' ),
            $opts->getValue( 'month' ),
            $opts->getValue( 'tagfilter' ),
            $opts->getValue( 'subtype' )
        );

        $this->addHeader( $opts->getValue( 'type' ) );

        # Set relevant user
        if ( $pager->getPerformer() ) {
            $performerUser = User::newFromName( $pager->getPerformer(), false );
            $this->getSkin()->setRelevantUser( $performerUser );
        }

        # Show form options
        $loglist->showOptions(
            $pager->getType(),
            $pager->getPerformer(),
            $pager->getPage(),
            $pager->getPattern(),
            $pager->getYear(),
            $pager->getMonth(),
            $pager->getFilterParams(),
            $pager->getTagFilter(),
            $pager->getAction()
        );

        # Insert list
        $logBody = $pager->getBody();
        if ( $logBody ) {
            $this->getOutput()->addHTML(
                $pager->getNavigationBar() .
                    $this->getActionButtons(
                        $loglist->beginLogEventsList() .
                            $logBody .
                            $loglist->endLogEventsList()
                    ) .
                    $pager->getNavigationBar()
            );
        } else {
            $this->getOutput()->addWikiMsg( 'logempty' );
        }
    }

    private function getActionButtons( $formcontents ) {
        $user = $this->getUser();
        $canRevDelete = $user->isAllowedAll( 'deletedhistory', 'deletelogentry' );
        $showTagEditUI = ChangeTags::showTagEditingUI( $user );
        # If the user doesn't have the ability to delete log entries nor edit tags,
        # don't bother showing them the button(s).
        if ( !$canRevDelete && !$showTagEditUI ) {
            return $formcontents;
        }

        # Show button to hide log entries and/or edit change tags
        $s = Html::openElement(
            'form',
            [ 'action' => wfScript(), 'id' => 'mw-log-deleterevision-submit' ]
        ) . "\n";
        $s .= Html::hidden( 'action', 'historysubmit' ) . "\n";
        $s .= Html::hidden( 'type', 'logging' ) . "\n";

        $buttons = '';
        if ( $canRevDelete ) {
            $buttons .= Html::element(
                'button',
                [
                    'type' => 'submit',
                    'name' => 'revisiondelete',
                    'value' => '1',
                    'class' => "deleterevision-log-submit mw-log-deleterevision-button"
                ],
                $this->msg( 'showhideselectedlogentries' )->text()
            ) . "\n";
        }
        if ( $showTagEditUI ) {
            $buttons .= Html::element(
                'button',
                [
                    'type' => 'submit',
                    'name' => 'editchangetags',
                    'value' => '1',
                    'class' => "editchangetags-log-submit mw-log-editchangetags-button"
                ],
                $this->msg( 'log-edit-tags' )->text()
            ) . "\n";
        }

        $buttons .= ( new ListToggle( $this->getOutput() ) )->getHTML();

        $s .= $buttons . $formcontents . $buttons;
        $s .= Html::closeElement( 'form' );

        return $s;
    }

    protected function addHeader( $type ) {
        $page = new LogPage( $type );
        $this->getOutput()->setPageTitle( $page->getName() );
        $this->getOutput()->addHTML( $page->getDescription()
            ->setContext( $this->getContext() )->parseAsBlock() );
    }

    protected function getGroupName() {
        return 'changes';
    }
}