class PornhubRipper extends AbstractHTMLRipper {
    // All sleep times are in milliseconds
    private static final int IMAGE_SLEEP_TIME    = 1000;

    private static final String DOMAIN = "pornhub.com", HOST = "Pornhub";

    // Thread pool for finding direct image links from "image" pages (html)
    private DownloadThreadPool pornhubThreadPool = new DownloadThreadPool("pornhub");

    public PornhubRipper(URL url) throws IOException {
        super(url);
    }

    @Override
    public String getHost() {
        return HOST;
    }

    @Override
    protected String getDomain() {
        return DOMAIN;
    }

    @Override
    protected Document getFirstPage() throws IOException {
        return Http.url(url).referrer(url).get();
    }

    @Override
    public Document getNextPage(Document page) throws IOException {
        Elements nextPageLink = page.select("li.page_next > a");
        if (nextPageLink.isEmpty()){
            throw new IOException("No more pages");
        } else {
            URL nextURL = new URL(this.url, nextPageLink.first().attr("href"));
            return Http.url(nextURL).get();
        }
    }

    @Override
    protected List<String> getURLsFromPage(Document page) {
        List<String> pageURLs = new ArrayList<>();
        // Find thumbnails
        Elements thumbs = page.select(".photoBlockBox li");
        // Iterate over thumbnail images on page
        for (Element thumb : thumbs) {
            String imagePage = thumb.select(".photoAlbumListBlock > a")
                    .first().attr("href");
            String fullURL = "https://pornhub.com" + imagePage;
            pageURLs.add(fullURL);
        }
        return pageURLs;
    }

    @Override
    protected void downloadURL(URL url, int index) {<FILL_FUNCTION_BODY>}

    public URL sanitizeURL(URL url) throws MalformedURLException {
        // always start on the first page of an album
        // (strip the options after the '?')
        String u = url.toExternalForm();
        if (u.contains("?")) {
            u = u.substring(0, u.indexOf("?"));
            return new URL(u);
        } else {
            return url;
        }
    }

    @Override
    public String getGID(URL url) throws MalformedURLException {
        Pattern p;
        Matcher m;

        p = Pattern.compile("^.*pornhub\\.com/album/([0-9]+).*$");
        m = p.matcher(url.toExternalForm());
        if (m.matches()) {
            return m.group(1);
        }

        throw new MalformedURLException(
                "Expected pornhub.com album format: "
                        + "http://www.pornhub.com/album/####"
                        + " Got: " + url);
    }

    @Override
    public DownloadThreadPool getThreadPool(){
        return pornhubThreadPool;
    }

    public boolean canRip(URL url) {
        return url.getHost().endsWith(DOMAIN) && url.getPath().startsWith("/album");
    }

    /**
     * Helper class to find and download images found on "image" pages
     *
     * Handles case when site has IP-banned the user.
     */
    private class PornhubImageThread extends Thread {
        private URL url;
        private int index;

        PornhubImageThread(URL url, int index, File workingDir) {
            super();
            this.url = url;
            this.index = index;
        }

        @Override
        public void run() {
            fetchImage();
        }

        private void fetchImage() {
            try {
                Document doc = Http.url(this.url)
                                   .referrer(this.url)
                                   .get();

                // Find image
                Elements images = doc.select("#photoImageSection img");
                Element image = images.first();
                String imgsrc = image.attr("src");
                LOGGER.info("Found URL " + imgsrc + " via " + images.get(0));

                // Provide prefix and let the AbstractRipper "guess" the filename
                String prefix = "";
                if (Utils.getConfigBoolean("download.save_order", true)) {
                    prefix = String.format("%03d_", index);
                }

                URL imgurl = new URL(url, imgsrc);
                addURLToDownload(imgurl, prefix);

            } catch (IOException e) {
                LOGGER.error("[!] Exception while loading/parsing " + this.url, e);
            }
        }
    }
}

        PornhubImageThread t = new PornhubImageThread(url, index, this.workingDir);
        pornhubThreadPool.addThread(t);
        try {
            Thread.sleep(IMAGE_SLEEP_TIME);
        } catch (InterruptedException e) {
            LOGGER.warn("Interrupted while waiting to load next image", e);
        }
    
<methods>public boolean addURLToDownload(java.net.URL, java.io.File, java.lang.String, Map<java.lang.String,java.lang.String>, java.lang.Boolean) ,public boolean addURLToDownload(java.net.URL, java.io.File) ,public boolean canRip(java.net.URL) ,public void downloadCompleted(java.net.URL, java.io.File) ,public void downloadErrored(java.net.URL, java.lang.String) ,public void downloadExists(java.net.URL, java.io.File) ,public int getCompletionPercentage() ,public int getCount() ,public abstract java.lang.String getHost() ,public Document getNextPage(Document) throws java.io.IOException,public java.lang.String getStatusText() ,public void rip() throws java.io.IOException,public java.net.URL sanitizeURL(java.net.URL) throws java.net.MalformedURLException,public boolean saveText(java.net.URL, java.lang.String, java.lang.String, int) ,public void setWorkingDir(java.net.URL) throws java.io.IOException<variables>private Map<java.net.URL,java.io.File> itemsCompleted,private Map<java.net.URL,java.lang.String> itemsErrored,private Map<java.net.URL,java.io.File> itemsPending