/**
 * currently this splitts only sitemaps for albums and its images. Spliting the images itself requires a major rework...
 *
 * Gets links to all images for all albums (album by album)
 *
 * @return string
 */
function getSitemapImages()
{
    global $_zp_gallery, $sitemap_number;
    $data = '';
    $sitemap_locales = generateLanguageList();
    $imagechangefreq = getOption('sitemap_changefreq_images');
    $imagelastmod = getOption('sitemap_lastmod_images');
    $limit = sitemap_getDBLimit(1);
    $albums = array();
    getSitemapAlbumList($_zp_gallery, $albums, 'passImages');
    $offset = $sitemap_number - 1;
    $albums = array_slice($albums, $offset, SITEMAP_CHUNK);
    if ($albums) {
        $data .= sitemap_echonl('<?xml version="1.0" encoding="UTF-8"?>');
        if (GOOGLE_SITEMAP) {
            $data .= sitemap_echonl('<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1" xmlns:video="http://www.google.com/schemas/sitemap-video/1.1">');
        } else {
            $data .= sitemap_echonl('<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">');
        }
        foreach ($albums as $album) {
            @set_time_limit(120);
            //	Extend script timeout to allow for gathering the images.
            $albumobj = newAlbum($album['folder']);
            $images = $albumobj->getImages();
            // print plain images links if available
            if ($images) {
                foreach ($images as $image) {
                    $imageobj = newImage($albumobj, $image);
                    $ext = getSuffix($imageobj->filename);
                    $date = sitemap_getDateformat($imageobj, $imagelastmod);
                    switch (SITEMAP_LOCALE_TYPE) {
                        case 1:
                            foreach ($sitemap_locales as $locale) {
                                $path = seo_locale::localePath(true, $locale) . '/' . pathurlencode($albumobj->name) . '/' . urlencode($imageobj->filename) . IM_SUFFIX;
                                $data .= sitemap_echonl("\t<url>\n\t\t<loc>" . $path . "</loc>\n\t\t<lastmod>" . $date . "</lastmod>\n\t\t<changefreq>" . $imagechangefreq . "</changefreq>\n\t\t<priority>0.6</priority>\n");
                                if (GOOGLE_SITEMAP) {
                                    $data .= getSitemapGoogleImageVideoExtras($albumobj, $imageobj, $locale);
                                }
                                $data .= sitemap_echonl("</url>");
                            }
                            break;
                        case 2:
                            foreach ($sitemap_locales as $locale) {
                                $path = rewrite_path(pathurlencode($albumobj->name) . '/' . urlencode($imageobj->filename) . IM_SUFFIX, '?album=' . pathurlencode($albumobj->name) . '&amp;image=' . urlencode($imageobj->filename), dynamic_locale::fullHostPath($locale));
                                $data .= sitemap_echonl("\t<url>\n\t\t<loc>" . $path . "</loc>\n\t\t<lastmod>" . $date . "</lastmod>\n\t\t<changefreq>" . $imagechangefreq . "</changefreq>\n\t\t<priority>0.6</priority>\n");
                                if (GOOGLE_SITEMAP) {
                                    $data .= getSitemapGoogleImageVideoExtras($albumobj, $imageobj, $locale);
                                }
                                $data .= sitemap_echonl("</url>");
                            }
                            break;
                        default:
                            $path = rewrite_path(pathurlencode($albumobj->name) . '/' . urlencode($imageobj->filename) . IM_SUFFIX, '?album=' . pathurlencode($albumobj->name) . '&amp;image=' . urlencode($imageobj->filename), FULLWEBPATH);
                            $data .= sitemap_echonl("\t<url>\n\t\t<loc>" . $path . "</loc>\n\t\t<lastmod>" . $date . "</lastmod>\n\t\t<changefreq>" . $imagechangefreq . "</changefreq>\n\t\t<priority>0.6</priority>\n");
                            if (GOOGLE_SITEMAP) {
                                $data .= getSitemapGoogleImageVideoExtras($albumobj, $imageobj, NULL);
                            }
                            $data .= sitemap_echonl("</url>");
                            break;
                    }
                }
            }
        }
        $data .= sitemap_echonl('</urlset>');
        // End off the <urlset> tag
    }
    return $data;
}
/**
 * currently this splitts only sitemaps for albums and its images. Spliting the images itself requires a major rework...
 *
 * Gets links to all images for all albums (album by album)
 *
 * @return string
 */
function getSitemapImages()
{
    global $_zp_gallery, $sitemap_number;
    $data = '';
    $sitemap_locales = generateLanguageList();
    $imagechangefreq = getOption('sitemap_changefreq_images');
    $imagelastmod = getOption('sitemap_lastmod_images');
    $limit = sitemap_getDBLimit(1);
    $albums = array();
    getSitemapAlbumList($_zp_gallery, $albums, 'passImages');
    $offset = $sitemap_number - 1;
    $albums = array_slice($albums, $offset, SITEMAP_CHUNK);
    if ($albums) {
        $data .= sitemap_echonl('<?xml version="1.0" encoding="UTF-8"?>');
        $data .= sitemap_echonl('<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">');
        foreach ($albums as $album) {
            set_time_limit(120);
            //	Extend script timeout to allow for gathering the images.
            $albumobj = new Album($_zp_gallery, $album['folder']);
            $images = $albumobj->getImages();
            // print plain images links if available
            if ($images) {
                foreach ($images as $image) {
                    $imageobj = newImage($albumobj, $image);
                    $ext = strtolower(strrchr($imageobj->filename, "."));
                    if (getOption('sitemap_google')) {
                        if ($ext == '.mp3' || $ext == '.txt' || $ext == '.html' || $ext == '.htm') {
                            // since the Google extensions do not cover audio we list mp3s extra to not exclude them!
                            $printimage = true;
                        } else {
                            $printimage = false;
                        }
                    } else {
                        $printimage = true;
                    }
                    if ($printimage) {
                        $date = sitemap_getDateformat($imageobj, $imagelastmod);
                        if (sitemap_multilingual()) {
                            foreach ($sitemap_locales as $locale) {
                                $path = FULLWEBPATH . '/' . rewrite_path($locale . '/' . pathurlencode($albumobj->name) . '/' . urlencode($imageobj->filename) . IM_SUFFIX, '?album=' . pathurlencode($albumobj->name) . '&amp;image=' . urlencode($imageobj->filename), false);
                                $data .= sitemap_echonl("\t<url>\n\t\t<loc>" . $path . "</loc>\n\t\t<lastmod>" . $date . "</lastmod>\n\t\t<changefreq>" . $imagechangefreq . "</changefreq>\n\t\t<priority>0.6</priority>\n\t</url>");
                            }
                        } else {
                            $path = FULLWEBPATH . '/' . rewrite_path(pathurlencode($albumobj->name) . '/' . urlencode($imageobj->filename) . IM_SUFFIX, '?album=' . pathurlencode($albumobj->name) . '&amp;image=' . urlencode($imageobj->filename), false);
                            $data .= sitemap_echonl("\t<url>\n\t\t<loc>" . $path . "</loc>\n\t\t<lastmod>" . $date . "</lastmod>\n\t\t<changefreq>" . $imagechangefreq . "</changefreq>\n\t\t<priority>0.6</priority>\n\t</url>");
                        }
                    }
                }
            }
        }
        $data .= sitemap_echonl('</urlset>');
        // End off the <urlset> tag
    }
    return $data;
}