1 files changed, 163 insertions, 0 deletions
diff --git a/WordPress/src/main/java/org/wordpress/android/ui/reader/utils/ReaderVideoUtils.java b/WordPress/src/main/java/org/wordpress/android/ui/reader/utils/ReaderVideoUtils.java
new file mode 100644
index 000000000..94ad8ece0
--- /dev/null
+++ b/WordPress/src/main/java/org/wordpress/android/ui/reader/utils/ReaderVideoUtils.java
@@ -0,0 +1,163 @@
+package org.wordpress.android.ui.reader.utils;
+
+import android.net.Uri;
+import android.text.TextUtils;
+
+import com.android.volley.Response;
+import com.android.volley.VolleyError;
+import com.android.volley.toolbox.JsonArrayRequest;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.wordpress.android.WordPress;
+import org.wordpress.android.util.AppLog;
+import org.wordpress.android.util.AppLog.T;
+import org.wordpress.android.util.JSONUtils;
+
+public class ReaderVideoUtils {
+	private ReaderVideoUtils() {
+		throw new AssertionError();
+	}
+
+    /*
+     * returns the url to get the full-size (480x360) thumbnail url for the passed video
+     * see http://www.reelseo.com/youtube-thumbnail-image/ for other sizes
+     */
+    public static String getYouTubeThumbnailUrl(final String videoUrl) {
+        String videoId = getYouTubeVideoId(videoUrl);
+        if (TextUtils.isEmpty(videoId))
+            return "";
+        // note that this *must* use https rather than http - ex: https://img.youtube.com/vi/ClbE019cLNI/0.jpg
+        return "https://img.youtube.com/vi/" + videoId + "/0.jpg";
+    }
+
+	/*
+	 * returns true if the passed url is a link to a YouTube video
+	 */
+	public static boolean isYouTubeVideoLink(final String link) {
+		return (!TextUtils.isEmpty(getYouTubeVideoId(link)));
+	}
+
+	/*
+	 * extract the video id from the passed YouTube url
+     */
+	private static String getYouTubeVideoId(final String link) {
+		if (link==null)
+			return "";
+
+		Uri uri = Uri.parse(link);
+		try {
+			String host = uri.getHost();
+			if (host==null)
+				return "";
+
+			// youtube.com links
+			if (host.equals("youtube.com") || host.equals("www.youtube.com")) {
+				// if link contains "watch" in the path, then the id is in the "v=" query param
+				if (link.contains("watch"))
+					return uri.getQueryParameter("v");
+                // if the link contains "embed" in the path, then the id is the last path segment
+                // ex: https://www.youtube.com/embed/fw3w68YrKwc?version=3&#038;rel=1&#038;
+                if (link.contains("/embed/"))
+                    return uri.getLastPathSegment();
+				return "";
+			}
+
+			// youtu.be urls have the videoId as the path - ex:  http://youtu.be/pEnXclbO9jg
+			if (host.equals("youtu.be")) {
+				String path = uri.getPath();
+				if (path==null)
+					return "";
+				// remove the leading slash
+				return path.replace("/", "");
+			}
+
+			// YouTube mobile urls include video id in fragment, ex: http://m.youtube.com/?dc=organic&source=mog#/watch?v=t77Vlme_pf8
+			if (host.equals("m.youtube.com")) {
+				String fragment = uri.getFragment();
+				if (fragment==null)
+					return "";
+				int index = fragment.lastIndexOf("v=");
+				if (index!=-1)
+					return fragment.substring(index+2, fragment.length());
+			}
+
+			return "";
+		} catch (UnsupportedOperationException e) {
+			AppLog.e(T.READER, e);
+			return "";
+		} catch (IndexOutOfBoundsException e) {
+			// thrown by substring
+            AppLog.e(T.READER, e);
+			return "";
+		}
+	}
+
+    /*
+     * returns true if the passed url is a link to a Vimeo video
+     */
+	public static boolean isVimeoLink(final String link) {
+		return (!TextUtils.isEmpty(getVimeoVideoId(link)));
+	}
+
+    /*
+     * extract the video id from the passed Vimeo url
+     * ex: http://player.vimeo.com/video/72386905 -> 72386905
+     */
+	private static String getVimeoVideoId(final String link) {
+		if (link==null)
+			return "";
+        if (!link.contains("player.vimeo.com"))
+            return "";
+
+		Uri uri = Uri.parse(link);
+		return uri.getLastPathSegment();
+	}
+
+    /*
+     * unlike YouTube thumbnails, Vimeo thumbnails require network request
+     */
+    public static void requestVimeoThumbnail(final String videoUrl, final VideoThumbnailListener thumbListener) {
+        // useless without a listener
+        if (thumbListener==null)
+            return;
+
+        String id = getVimeoVideoId(videoUrl);
+        if (TextUtils.isEmpty(id)) {
+            thumbListener.onResponse(false, null);
+            return;
+        }
+
+        Response.Listener<JSONArray> listener = new Response.Listener<JSONArray>() {
+            public void onResponse(JSONArray response) {
+                String thumbnailUrl = null;
+                if (response!=null && response.length() > 0) {
+                    JSONObject json = response.optJSONObject(0);
+                    if (json!=null && json.has("thumbnail_large"))
+                        thumbnailUrl = JSONUtils.getString(json, "thumbnail_large");
+                }
+                if (TextUtils.isEmpty(thumbnailUrl)) {
+                    thumbListener.onResponse(false, null);
+                } else {
+                    thumbListener.onResponse(true, thumbnailUrl);
+                }
+            }
+        };
+        Response.ErrorListener errorListener = new Response.ErrorListener() {
+            @Override
+            public void onErrorResponse(VolleyError volleyError) {
+                AppLog.e(T.READER, volleyError);
+                thumbListener.onResponse(false, null);
+            }
+        };
+
+        String url = "http://vimeo.com/api/v2/video/" + id + ".json";
+        JsonArrayRequest request = new JsonArrayRequest(url, listener, errorListener);
+
+        WordPress.requestQueue.add(request);
+    }
+
+    public interface VideoThumbnailListener {
+        void onResponse(boolean successful, String thumbnailUrl);
+    }
+}