ApiQueryFilearchive.php

Go to the documentation of this file.

<?php
use MediaWiki\CommentFormatter\CommentFormatter;
use MediaWiki\CommentFormatter\CommentItem;
use MediaWiki\CommentStore\CommentStore;
use MediaWiki\Revision\RevisionRecord;
use MediaWiki\Title\Title;
use Wikimedia\ParamValidator\ParamValidator;
use Wikimedia\ParamValidator\TypeDef\IntegerDef;
 
class ApiQueryFilearchive extends ApiQueryBase {
 
    private $commentStore;
 
    private $commentFormatter;
 
    public function __construct(
        ApiQuery $query,
        $moduleName,
        CommentStore $commentStore,
        CommentFormatter $commentFormatter
    ) {
        parent::__construct( $query, $moduleName, 'fa' );
        $this->commentStore = $commentStore;
        $this->commentFormatter = $commentFormatter;
    }
 
    public function execute() {
        $user = $this->getUser();
        $db = $this->getDB();
 
        $params = $this->extractRequestParams();
 
        $prop = array_fill_keys( $params['prop'], true );
        $fld_sha1 = isset( $prop['sha1'] );
        $fld_timestamp = isset( $prop['timestamp'] );
        $fld_user = isset( $prop['user'] );
        $fld_size = isset( $prop['size'] );
        $fld_dimensions = isset( $prop['dimensions'] );
        $fld_description = isset( $prop['description'] ) || isset( $prop['parseddescription'] );
        $fld_parseddescription = isset( $prop['parseddescription'] );
        $fld_mime = isset( $prop['mime'] );
        $fld_mediatype = isset( $prop['mediatype'] );
        $fld_metadata = isset( $prop['metadata'] );
        $fld_bitdepth = isset( $prop['bitdepth'] );
        $fld_archivename = isset( $prop['archivename'] );
 
        if ( $fld_description && !$this->getAuthority()->isAllowed( 'deletedhistory' ) ) {
            $this->dieWithError( 'apierror-cantview-deleted-description', 'permissiondenied' );
        }
        if ( $fld_metadata && !$this->getAuthority()->isAllowedAny( 'deletedtext', 'undelete' ) ) {
            $this->dieWithError( 'apierror-cantview-deleted-metadata', 'permissiondenied' );
        }
 
        $fileQuery = ArchivedFile::getQueryInfo();
        $this->addTables( $fileQuery['tables'] );
        $this->addFields( $fileQuery['fields'] );
        $this->addJoinConds( $fileQuery['joins'] );
 
        if ( $params['continue'] !== null ) {
            $cont = $this->parseContinueParamOrDie( $params['continue'], [ 'string', 'timestamp', 'int' ] );
            $op = $params['dir'] == 'descending' ? '<=' : '>=';
            $this->addWhere( $db->buildComparison( $op, [
                'fa_name' => $cont[0],
                'fa_timestamp' => $db->timestamp( $cont[1] ),
                'fa_id' => $cont[2],
            ] ) );
        }
 
        // Image filters
        $dir = ( $params['dir'] == 'descending' ? 'older' : 'newer' );
        $from = ( $params['from'] === null ? null : $this->titlePartToKey( $params['from'], NS_FILE ) );
        $to = ( $params['to'] === null ? null : $this->titlePartToKey( $params['to'], NS_FILE ) );
        $this->addWhereRange( 'fa_name', $dir, $from, $to );
        if ( isset( $params['prefix'] ) ) {
            $this->addWhere( 'fa_name' . $db->buildLike(
                $this->titlePartToKey( $params['prefix'], NS_FILE ),
                $db->anyString() ) );
        }
 
        $sha1Set = isset( $params['sha1'] );
        $sha1base36Set = isset( $params['sha1base36'] );
        if ( $sha1Set || $sha1base36Set ) {
            $sha1 = false;
            if ( $sha1Set ) {
                $sha1 = strtolower( $params['sha1'] );
                if ( !$this->validateSha1Hash( $sha1 ) ) {
                    $this->dieWithError( 'apierror-invalidsha1hash' );
                }
                $sha1 = Wikimedia\base_convert( $sha1, 16, 36, 31 );
            } elseif ( $sha1base36Set ) {
                $sha1 = strtolower( $params['sha1base36'] );
                if ( !$this->validateSha1Base36Hash( $sha1 ) ) {
                    $this->dieWithError( 'apierror-invalidsha1base36hash' );
                }
            }
            if ( $sha1 ) {
                $this->addWhereFld( 'fa_sha1', $sha1 );
                // Paranoia: avoid brute force searches (T19342)
                if ( !$this->getAuthority()->isAllowed( 'deletedtext' ) ) {
                    $bitmask = File::DELETED_FILE;
                } elseif ( !$this->getAuthority()->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
                    $bitmask = File::DELETED_FILE | File::DELETED_RESTRICTED;
                } else {
                    $bitmask = 0;
                }
                if ( $bitmask ) {
                    $this->addWhere( $this->getDB()->bitAnd( 'fa_deleted', $bitmask ) . " != $bitmask" );
                }
            }
        }
 
        $limit = $params['limit'];
        $this->addOption( 'LIMIT', $limit + 1 );
        $sort = ( $params['dir'] == 'descending' ? ' DESC' : '' );
        $this->addOption( 'ORDER BY', [
            'fa_name' . $sort,
            'fa_timestamp' . $sort,
            'fa_id' . $sort,
        ] );
 
        $res = $this->select( __METHOD__ );
 
        // Format descriptions in a batch
        $formattedDescriptions = [];
        $descriptions = [];
        if ( $fld_parseddescription ) {
            $commentItems = [];
            foreach ( $res as $row ) {
                $desc = $this->commentStore->getComment( 'fa_description', $row )->text;
                $descriptions[$row->fa_id] = $desc;
                $commentItems[$row->fa_id] = ( new CommentItem( $desc ) )
                    ->selfLinkTarget( new TitleValue( NS_FILE, $row->fa_name ) );
            }
            $formattedDescriptions = $this->commentFormatter->createBatch()
                ->comments( $commentItems )
                ->execute();
        }
 
        $count = 0;
        $result = $this->getResult();
        foreach ( $res as $row ) {
            if ( ++$count > $limit ) {
                // We've reached the one extra which shows that there are
                // additional pages to be had. Stop here...
                $this->setContinueEnumParameter(
                    'continue', "$row->fa_name|$row->fa_timestamp|$row->fa_id"
                );
                break;
            }
 
            $canViewFile = RevisionRecord::userCanBitfield( $row->fa_deleted, File::DELETED_FILE, $user );
 
            $file = [];
            $file['id'] = (int)$row->fa_id;
            $file['name'] = $row->fa_name;
            $title = Title::makeTitle( NS_FILE, $row->fa_name );
            self::addTitleInfo( $file, $title );
 
            if ( $fld_description &&
                RevisionRecord::userCanBitfield( $row->fa_deleted, File::DELETED_COMMENT, $user )
            ) {
                if ( isset( $prop['parseddescription'] ) ) {
                    $file['parseddescription'] = $formattedDescriptions[$row->fa_id];
                    $file['description'] = $descriptions[$row->fa_id];
                } else {
                    $file['description'] = $this->commentStore->getComment( 'fa_description', $row )->text;
                }
            }
            if ( $fld_user &&
                RevisionRecord::userCanBitfield( $row->fa_deleted, File::DELETED_USER, $user )
            ) {
                $file['userid'] = (int)$row->fa_user;
                $file['user'] = $row->fa_user_text;
            }
            if ( $fld_sha1 && $canViewFile ) {
                $file['sha1'] = Wikimedia\base_convert( $row->fa_sha1, 36, 16, 40 );
            }
            if ( $fld_timestamp ) {
                $file['timestamp'] = wfTimestamp( TS_ISO_8601, $row->fa_timestamp );
            }
            if ( ( $fld_size || $fld_dimensions ) && $canViewFile ) {
                $file['size'] = $row->fa_size;
 
                $pageCount = ArchivedFile::newFromRow( $row )->pageCount();
                if ( $pageCount !== false ) {
                    $file['pagecount'] = $pageCount;
                }
 
                $file['height'] = $row->fa_height;
                $file['width'] = $row->fa_width;
            }
            if ( $fld_mediatype && $canViewFile ) {
                $file['mediatype'] = $row->fa_media_type;
            }
            if ( $fld_metadata && $canViewFile ) {
                $metadataArray = ArchivedFile::newFromRow( $row )->getMetadataArray();
                $file['metadata'] = $row->fa_metadata
                    ? ApiQueryImageInfo::processMetaData( $metadataArray, $result )
                    : null;
            }
            if ( $fld_bitdepth && $canViewFile ) {
                $file['bitdepth'] = $row->fa_bits;
            }
            if ( $fld_mime && $canViewFile ) {
                $file['mime'] = "$row->fa_major_mime/$row->fa_minor_mime";
            }
            if ( $fld_archivename && $row->fa_archive_name !== null ) {
                $file['archivename'] = $row->fa_archive_name;
            }
 
            if ( $row->fa_deleted & File::DELETED_FILE ) {
                $file['filehidden'] = true;
            }
            if ( $row->fa_deleted & File::DELETED_COMMENT ) {
                $file['commenthidden'] = true;
            }
            if ( $row->fa_deleted & File::DELETED_USER ) {
                $file['userhidden'] = true;
            }
            if ( $row->fa_deleted & File::DELETED_RESTRICTED ) {
                // This file is deleted for normal admins
                $file['suppressed'] = true;
            }
 
            $fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $file );
            if ( !$fit ) {
                $this->setContinueEnumParameter(
                    'continue', "$row->fa_name|$row->fa_timestamp|$row->fa_id"
                );
                break;
            }
        }
 
        $result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'fa' );
    }
 
    public function getAllowedParams() {
        return [
            'from' => null,
            'to' => null,
            'prefix' => null,
            'dir' => [
                ParamValidator::PARAM_DEFAULT => 'ascending',
                ParamValidator::PARAM_TYPE => [
                    'ascending',
                    'descending'
                ]
            ],
            'sha1' => null,
            'sha1base36' => null,
            'prop' => [
                ParamValidator::PARAM_DEFAULT => 'timestamp',
                ParamValidator::PARAM_ISMULTI => true,
                ParamValidator::PARAM_TYPE => [
                    'sha1',
                    'timestamp',
                    'user',
                    'size',
                    'dimensions',
                    'description',
                    'parseddescription',
                    'mime',
                    'mediatype',
                    'metadata',
                    'bitdepth',
                    'archivename',
                ],
                ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
            ],
            'limit' => [
                ParamValidator::PARAM_DEFAULT => 10,
                ParamValidator::PARAM_TYPE => 'limit',
                IntegerDef::PARAM_MIN => 1,
                IntegerDef::PARAM_MAX => ApiBase::LIMIT_BIG1,
                IntegerDef::PARAM_MAX2 => ApiBase::LIMIT_BIG2
            ],
            'continue' => [
                ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
            ],
        ];
    }
 
    protected function getExamplesMessages() {
        return [
            'action=query&list=filearchive'
                => 'apihelp-query+filearchive-example-simple',
        ];
    }
 
    public function getHelpUrls() {
        return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Filearchive';
    }
}