Added dribbble.com ripper

src/main/java/com/rarchives/ripme/ripper/rippers/DribbbleRipper.java

@@ -0,0 +1,74 @@
+package com.rarchives.ripme.ripper.rippers;
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
+import com.rarchives.ripme.ripper.AbstractHTMLRipper;
+import com.rarchives.ripme.utils.Http;
+
+public class DribbbleRipper extends AbstractHTMLRipper {
+
+    public DribbbleRipper(URL url) throws IOException {
+        super(url);
+    }
+
+    @Override
+    public String getHost() {
+        return "dribbble";
+    }
+    @Override
+    public String getDomain() {
+        return "dribbble.com";
+    }
+
+    @Override
+    public String getGID(URL url) throws MalformedURLException {
+        Pattern p = Pattern.compile("^https?://[wm.]*dribbble\\.com/([a-zA-Z0-9]+).*$");
+        Matcher m = p.matcher(url.toExternalForm());
+        if (m.matches()) {
+            return m.group(1);
+        }
+        throw new MalformedURLException("Expected dribbble.com URL format: " +
+                "dribbble.com/albumid - got " + url + "instead");
+    }
+
+    @Override
+    public Document getFirstPage() throws IOException {
+        return Http.url(url).get();
+    }
+    @Override
+    public Document getNextPage(Document doc) throws IOException {
+        // Find next page
+        Elements hrefs = doc.select("a.next_page");
+        if (hrefs.size() == 0) {
+            throw new IOException("No more pages");
+        }
+        String nextUrl = "https://www.dribbble.com" + hrefs.first().attr("href");
+        sleep(500);
+        return Http.url(nextUrl).get();
+    }
+    @Override
+    public List<String> getURLsFromPage(Document doc) {
+        List<String> imageURLs = new ArrayList<>();
+        for (Element thumb : doc.select("a.dribbble-link > picture > source")) {
+            // nl skips thumbnails
+            if ( thumb.attr("srcset").contains("teaser")) continue;
+            String image = thumb.attr("srcset").replace("_1x", "");
+            imageURLs.add(image);
+        }
+        return imageURLs;
+    }
+    @Override
+    public void downloadURL(URL url, int index) {
+        addURLToDownload(url, getPrefix(index));
+    }
+}