class HentaifoxRipper extends AbstractHTMLRipper {

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

    @Override
    public String getHost() {
        return "hentaifox";
    }

    @Override
    public String getDomain() {
        return "hentaifox.com";
    }

    @Override
    public String getGID(URL url) throws MalformedURLException {<FILL_FUNCTION_BODY>}

    @Override
    public Document getFirstPage() throws IOException {
        // "url" is an instance field of the superclass
        return Http.url(url).get();
    }

    @Override
    public List<String> getURLsFromPage(Document doc) {
        LOGGER.info(doc);
        List<String> result = new ArrayList<>();
        for (Element el : doc.select("div.preview_thumb > a > img")) {
                String imageSource = "https:" + el.attr("data-src").replaceAll("t\\.jpg", ".jpg");
                result.add(imageSource);
            }
        return result;
    }

    @Override
    public String getAlbumTitle(URL url) throws MalformedURLException {
        try {
            Document doc = getFirstPage();
            String title = doc.select("div.info > h1").first().text();
            return getHost() + "_" + title + "_" + getGID(url);
        } catch (Exception e) {
            // Fall back to default album naming convention
            LOGGER.warn("Failed to get album title from " + url, e);
        }
        return super.getAlbumTitle(url);
    }

    @Override
    public void downloadURL(URL url, int index) {
        addURLToDownload(url, getPrefix(index));
    }
}

        Pattern p = Pattern.compile("https://hentaifox.com/gallery/([\\d]+)/?");
        Matcher m = p.matcher(url.toExternalForm());
        if (m.matches()) {
            return m.group(1);
        }
        throw new MalformedURLException("Expected hentaifox URL format: " +
                "https://hentaifox.com/gallery/ID - got " + url + " instead");
    
<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