NewPagesPager.php

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<?php
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\HookContainer\HookContainer;
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\Permissions\GroupPermissionsLookup;
use Wikimedia\Rdbms\ILoadBalancer;
 
class NewPagesPager extends ReverseChronologicalPager {
 
    protected $opts;
 
    protected $mForm;
 
    private $groupPermissionsLookup;
 
    private $hookRunner;
 
    private $linkBatchFactory;
 
    private $namespaceInfo;
 
    public function __construct(
        SpecialNewpages $form,
        GroupPermissionsLookup $groupPermissionsLookup,
        HookContainer $hookContainer,
        LinkBatchFactory $linkBatchFactory,
        ILoadBalancer $loadBalancer,
        NamespaceInfo $namespaceInfo,
        FormOptions $opts
    ) {
        // Set database before parent constructor to avoid setting it there with wfGetDB
        $this->mDb = $loadBalancer->getConnectionRef( ILoadBalancer::DB_REPLICA );
        parent::__construct( $form->getContext() );
        $this->groupPermissionsLookup = $groupPermissionsLookup;
        $this->hookRunner = new HookRunner( $hookContainer );
        $this->linkBatchFactory = $linkBatchFactory;
        $this->namespaceInfo = $namespaceInfo;
        $this->mForm = $form;
        $this->opts = $opts;
    }
 
    public function getQueryInfo() {
        $rcQuery = RecentChange::getQueryInfo();
 
        $conds = [];
        $conds['rc_new'] = 1;
 
        $username = $this->opts->getValue( 'username' );
        $user = Title::makeTitleSafe( NS_USER, $username );
 
        $size = abs( intval( $this->opts->getValue( 'size' ) ) );
        if ( $size > 0 ) {
            if ( $this->opts->getValue( 'size-mode' ) === 'max' ) {
                $conds[] = 'page_len <= ' . $size;
            } else {
                $conds[] = 'page_len >= ' . $size;
            }
        }
 
        if ( $user ) {
            $conds['actor_name'] = $user->getText();
        } elseif ( $this->canAnonymousUsersCreatePages() && $this->opts->getValue( 'hideliu' ) ) {
            # If anons cannot make new pages, don't "exclude logged in users"!
            $conds['actor_user'] = null;
        }
 
        $conds = array_merge( $conds, $this->getNamespaceCond() );
 
        # If this user cannot see patrolled edits or they are off, don't do dumb queries!
        if ( $this->opts->getValue( 'hidepatrolled' ) && $this->getUser()->useNPPatrol() ) {
            $conds['rc_patrolled'] = RecentChange::PRC_UNPATROLLED;
        }
 
        if ( $this->opts->getValue( 'hidebots' ) ) {
            $conds['rc_bot'] = 0;
        }
 
        if ( $this->opts->getValue( 'hideredirs' ) ) {
            $conds['page_is_redirect'] = 0;
        }
 
        // Allow changes to the New Pages query
        $tables = array_merge( $rcQuery['tables'], [ 'page' ] );
        $fields = array_merge( $rcQuery['fields'], [
            'length' => 'page_len', 'rev_id' => 'page_latest', 'page_namespace', 'page_title',
            'page_content_model',
        ] );
        $join_conds = [ 'page' => [ 'JOIN', 'page_id=rc_cur_id' ] ] + $rcQuery['joins'];
 
        $this->hookRunner->onSpecialNewpagesConditions(
            $this, $this->opts, $conds, $tables, $fields, $join_conds );
 
        $info = [
            'tables' => $tables,
            'fields' => $fields,
            'conds' => $conds,
            'options' => [],
            'join_conds' => $join_conds
        ];
 
        // Modify query for tags
        ChangeTags::modifyDisplayQuery(
            $info['tables'],
            $info['fields'],
            $info['conds'],
            $info['join_conds'],
            $info['options'],
            $this->opts['tagfilter']
        );
 
        return $info;
    }
 
    private function canAnonymousUsersCreatePages() {
        return $this->groupPermissionsLookup->groupHasPermission( '*', 'createpage' ) ||
            $this->groupPermissionsLookup->groupHasPermission( '*', 'createtalk' );
    }
 
    // Based on ContribsPager.php
    private function getNamespaceCond() {
        $namespace = $this->opts->getValue( 'namespace' );
        if ( $namespace === 'all' || $namespace === '' ) {
            return [];
        }
 
        $namespace = intval( $namespace );
        if ( $namespace < NS_MAIN ) {
            // Negative namespaces are invalid
            return [];
        }
 
        $invert = $this->opts->getValue( 'invert' );
        $associated = $this->opts->getValue( 'associated' );
 
        $eq_op = $invert ? '!=' : '=';
        $bool_op = $invert ? 'AND' : 'OR';
 
        $dbr = $this->getDatabase();
        $selectedNS = $dbr->addQuotes( $namespace );
        if ( !$associated ) {
            return [ "rc_namespace $eq_op $selectedNS" ];
        }
 
        $associatedNS = $dbr->addQuotes(
            $this->namespaceInfo->getAssociated( $namespace )
        );
        return [
            "rc_namespace $eq_op $selectedNS " .
            $bool_op .
            " rc_namespace $eq_op $associatedNS"
        ];
    }
 
    public function getIndexField() {
        return [ [ 'rc_timestamp', 'rc_id' ] ];
    }
 
    public function formatRow( $row ) {
        return $this->mForm->formatRow( $row );
    }
 
    protected function getStartBody() {
        # Do a batch existence check on pages
        $linkBatch = $this->linkBatchFactory->newLinkBatch();
        foreach ( $this->mResult as $row ) {
            $linkBatch->add( NS_USER, $row->rc_user_text );
            $linkBatch->add( NS_USER_TALK, $row->rc_user_text );
            $linkBatch->add( $row->page_namespace, $row->page_title );
        }
        $linkBatch->execute();
 
        return '<ul>';
    }
 
    protected function getEndBody() {
        return '</ul>';
    }
}