Function processVersions

lib/api/bucketGet.js:104–175

(bucketName, listParams, list)

*/

function processVersions(bucketName, listParams, list) {
    const xml = [];
    xml.push(
        '<?xml version="1.0" encoding="UTF-8"?>',
        '<ListVersionsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">',
        '<Name>', bucketName, '</Name>'
    );
    const isTruncated = list.IsTruncated ? 'true' : 'false';
    const xmlParams = [
        { tag: 'Prefix', value: listParams.prefix },
        { tag: 'KeyMarker', value: listParams.keyMarker },
        { tag: 'VersionIdMarker', value: listParams.versionIdMarker },
        { tag: 'NextKeyMarker', value: list.NextKeyMarker },
        { tag: 'NextVersionIdMarker', value: list.NextVersionIdMarker },
        { tag: 'MaxKeys', value: listParams.maxKeys },
        { tag: 'Delimiter', value: listParams.delimiter },
        { tag: 'EncodingType', value: listParams.encoding },
        { tag: 'IsTruncated', value: isTruncated },
    ];

    const escapeXmlFn = listParams.encoding === 'url' ? querystring.escape : escapeForXml;
    xmlParams.forEach(p => {
        if (p.value) {
            const val = p.tag !== 'NextVersionIdMarker' || p.value === 'null' ?
                p.value :
                versionIdUtils.encode(p.value);
            xml.push(`<${p.tag}>${escapeXmlFn(val)}</${p.tag}>`);
        }
    });
    let lastKey = listParams.keyMarker ? escapeXmlFn(listParams.keyMarker) : undefined;
    list.Versions.forEach(item => {
        const v = item.value;
        const objectKey = escapeXmlFn(item.key);
        const isLatest = lastKey !== objectKey;
        lastKey = objectKey;

        xml.push(
            v.IsDeleteMarker ? '<DeleteMarker>' : '<Version>',
            `<Key>${objectKey}</Key>`,
            '<VersionId>',
            (v.IsNull || v.VersionId === undefined) ?
                'null'
                : versionIdUtils.encode(v.VersionId),
            '</VersionId>',
            `<IsLatest>${isLatest}</IsLatest>`,
            `<LastModified>${v.LastModified}</LastModified>`,
            `<ETag>&quot;${v.ETag}&quot;</ETag>`,
            `<Size>${v.Size}</Size>`,
            '<Owner>',
            `<ID>${v.Owner.ID}</ID>`,
            `<DisplayName>${v.Owner.DisplayName}</DisplayName>`,
            '</Owner>',
        );

        if (!v.IsDeleteMarker) {
            buildAttributesXml(v, v.userMetadata, listParams.optionalAttributes, xml);
        }