ApiQueryProtectedTitles.php

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<?php
class ApiQueryProtectedTitles extends ApiQueryGeneratorBase {

    public function __construct( ApiQuery $query, $moduleName ) {
        parent::__construct( $query, $moduleName, 'pt' );
    }

    public function execute() {
        $this->run();
    }

    public function executeGenerator( $resultPageSet ) {
        $this->run( $resultPageSet );
    }

    private function run( $resultPageSet = null ) {
        $params = $this->extractRequestParams();

        $this->addTables( 'protected_titles' );
        $this->addFields( [ 'pt_namespace', 'pt_title', 'pt_timestamp' ] );

        $prop = array_flip( $params['prop'] );
        $this->addFieldsIf( 'pt_user', isset( $prop['user'] ) || isset( $prop['userid'] ) );
        $this->addFieldsIf( 'pt_reason', isset( $prop['comment'] ) || isset( $prop['parsedcomment'] ) );
        $this->addFieldsIf( 'pt_expiry', isset( $prop['expiry'] ) );
        $this->addFieldsIf( 'pt_create_perm', isset( $prop['level'] ) );

        $this->addTimestampWhereRange( 'pt_timestamp', $params['dir'], $params['start'], $params['end'] );
        $this->addWhereFld( 'pt_namespace', $params['namespace'] );
        $this->addWhereFld( 'pt_create_perm', $params['level'] );

        // Include in ORDER BY for uniqueness
        $this->addWhereRange( 'pt_namespace', $params['dir'], null, null );
        $this->addWhereRange( 'pt_title', $params['dir'], null, null );

        if ( !is_null( $params['continue'] ) ) {
            $cont = explode( '|', $params['continue'] );
            $this->dieContinueUsageIf( count( $cont ) != 3 );
            $op = ( $params['dir'] === 'newer' ? '>' : '<' );
            $db = $this->getDB();
            $continueTimestamp = $db->addQuotes( $db->timestamp( $cont[0] ) );
            $continueNs = (int)$cont[1];
            $this->dieContinueUsageIf( $continueNs != $cont[1] );
            $continueTitle = $db->addQuotes( $cont[2] );
            $this->addWhere( "pt_timestamp $op $continueTimestamp OR " .
                "(pt_timestamp = $continueTimestamp AND " .
                "(pt_namespace $op $continueNs OR " .
                "(pt_namespace = $continueNs AND " .
                "pt_title $op= $continueTitle)))"
            );
        }

        if ( isset( $prop['user'] ) ) {
            $this->addTables( 'user' );
            $this->addFields( 'user_name' );
            $this->addJoinConds( [ 'user' => [ 'LEFT JOIN',
                'user_id=pt_user'
            ] ] );
        }

        $this->addOption( 'LIMIT', $params['limit'] + 1 );
        $res = $this->select( __METHOD__ );

        $count = 0;
        $result = $this->getResult();

        $titles = [];

        foreach ( $res as $row ) {
            if ( ++$count > $params['limit'] ) {
                // We've reached the one extra which shows that there are
                // additional pages to be had. Stop here...
                $this->setContinueEnumParameter( 'continue',
                    "$row->pt_timestamp|$row->pt_namespace|$row->pt_title"
                );
                break;
            }

            $title = Title::makeTitle( $row->pt_namespace, $row->pt_title );
            if ( is_null( $resultPageSet ) ) {
                $vals = [];
                ApiQueryBase::addTitleInfo( $vals, $title );
                if ( isset( $prop['timestamp'] ) ) {
                    $vals['timestamp'] = wfTimestamp( TS_ISO_8601, $row->pt_timestamp );
                }

                if ( isset( $prop['user'] ) && !is_null( $row->user_name ) ) {
                    $vals['user'] = $row->user_name;
                }

                if ( isset( $prop['userid'] ) || /*B/C*/isset( $prop['user'] ) ) {
                    $vals['userid'] = (int)$row->pt_user;
                }

                if ( isset( $prop['comment'] ) ) {
                    $vals['comment'] = $row->pt_reason;
                }

                if ( isset( $prop['parsedcomment'] ) ) {
                    $vals['parsedcomment'] = Linker::formatComment( $row->pt_reason, $title );
                }

                if ( isset( $prop['expiry'] ) ) {
                    global $wgContLang;
                    $vals['expiry'] = $wgContLang->formatExpiry( $row->pt_expiry, TS_ISO_8601 );
                }

                if ( isset( $prop['level'] ) ) {
                    $vals['level'] = $row->pt_create_perm;
                }

                $fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $vals );
                if ( !$fit ) {
                    $this->setContinueEnumParameter( 'continue',
                        "$row->pt_timestamp|$row->pt_namespace|$row->pt_title"
                    );
                    break;
                }
            } else {
                $titles[] = $title;
            }
        }

        if ( is_null( $resultPageSet ) ) {
            $result->addIndexedTagName(
                [ 'query', $this->getModuleName() ],
                $this->getModulePrefix()
            );
        } else {
            $resultPageSet->populateFromTitles( $titles );
        }
    }

    public function getCacheMode( $params ) {
        if ( !is_null( $params['prop'] ) && in_array( 'parsedcomment', $params['prop'] ) ) {
            // formatComment() calls wfMessage() among other things
            return 'anon-public-user-private';
        } else {
            return 'public';
        }
    }

    public function getAllowedParams() {
        return [
            'namespace' => [
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_TYPE => 'namespace',
            ],
            'level' => [
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_TYPE => array_diff( $this->getConfig()->get( 'RestrictionLevels' ), [ '' ] )
            ],
            'limit' => [
                ApiBase::PARAM_DFLT => 10,
                ApiBase::PARAM_TYPE => 'limit',
                ApiBase::PARAM_MIN => 1,
                ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
                ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
            ],
            'dir' => [
                ApiBase::PARAM_DFLT => 'older',
                ApiBase::PARAM_TYPE => [
                    'newer',
                    'older'
                ],
                ApiBase::PARAM_HELP_MSG => 'api-help-param-direction',
            ],
            'start' => [
                ApiBase::PARAM_TYPE => 'timestamp'
            ],
            'end' => [
                ApiBase::PARAM_TYPE => 'timestamp'
            ],
            'prop' => [
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_DFLT => 'timestamp|level',
                ApiBase::PARAM_TYPE => [
                    'timestamp',
                    'user',
                    'userid',
                    'comment',
                    'parsedcomment',
                    'expiry',
                    'level'
                ],
                ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
            ],
            'continue' => [
                ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
            ],
        ];
    }

    protected function getExamplesMessages() {
        return [
            'action=query&list=protectedtitles'
                => 'apihelp-query+protectedtitles-example-simple',
            'action=query&generator=protectedtitles&gptnamespace=0&prop=linkshere'
                => 'apihelp-query+protectedtitles-example-generator',
        ];
    }

    public function getHelpUrls() {
        return 'https://www.mediawiki.org/wiki/API:Protectedtitles';
    }
}