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( array( '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( array( 'user' => array( 'LEFT JOIN',
                'user_id=pt_user'
            ) ) );
        }

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

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

        $titles = array();

        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 = array();
                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'] = $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( array( '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->setIndexedTagName_internal(
                array( '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 array(
            'namespace' => array(
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_TYPE => 'namespace',
            ),
            'level' => array(
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_TYPE => array_diff( $this->getConfig()->get( 'RestrictionLevels' ), array( '' ) )
            ),
            'limit' => array(
                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' => array(
                ApiBase::PARAM_DFLT => 'older',
                ApiBase::PARAM_TYPE => array(
                    'newer',
                    'older'
                )
            ),
            'start' => array(
                ApiBase::PARAM_TYPE => 'timestamp'
            ),
            'end' => array(
                ApiBase::PARAM_TYPE => 'timestamp'
            ),
            'prop' => array(
                ApiBase::PARAM_ISMULTI => true,
                ApiBase::PARAM_DFLT => 'timestamp|level',
                ApiBase::PARAM_TYPE => array(
                    'timestamp',
                    'user',
                    'userid',
                    'comment',
                    'parsedcomment',
                    'expiry',
                    'level'
                )
            ),
            'continue' => null,
        );
    }

    public function getParamDescription() {
        return array(
            'namespace' => 'Only list titles in these namespaces',
            'start' => 'Start listing at this protection timestamp',
            'end' => 'Stop listing at this protection timestamp',
            'dir' => $this->getDirectionDescription( $this->getModulePrefix() ),
            'limit' => 'How many total pages to return',
            'prop' => array(
                'Which properties to get',
                ' timestamp      - Adds the timestamp of when protection was added',
                ' user           - Adds the user that added the protection',
                ' userid         - Adds the user id that added the protection',
                ' comment        - Adds the comment for the protection',
                ' parsedcomment  - Adds the parsed comment for the protection',
                ' expiry         - Adds the timestamp of when the protection will be lifted',
                ' level          - Adds the protection level',
            ),
            'level' => 'Only list titles with these protection levels',
            'continue' => 'When more results are available, use this to continue',
        );
    }

    public function getDescription() {
        return 'List all titles protected from creation.';
    }

    public function getExamples() {
        return array(
            'api.php?action=query&list=protectedtitles',
        );
    }

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