microformats2: add u-featured to ActivityStreams image field

for snarfed/bridgy#741

README.md

@@ -296,6 +296,7 @@ Changelog
 * Instagram:
     * Update scraping to handle new home page (ie news feed) JSON schema, which changed sometime around 2017-02-27. (Profile pages and individual photo/video permalinks still haven't changed yet.)
 * microformats2:
+    * Add [`u-featured`](https://indieweb.org/featured) to ActivityStreams `image`.
     * Minor whitespace change (added <p>) when rendering locations as HTML.
 * Atom:
     * Include author name when rendering attached articles and notes (e.g. quote tweets).

granary/microformats2.py

@@ -273,7 +273,7 @@ def json_to_object(mf2, actor=None):
   as_type, as_verb = mf2_type_to_as_type.get(mf2_type, (None, None))
 
   def absolute_urls(prop):
-    return [{'url': url} for url in get_string_urls(props.get(prop, []))
+    return [url for url in get_string_urls(props.get(prop, []))
             # filter out relative and invalid URLs (mf2py gives absolute urls)
             if urlparse.urlparse(url).netloc]
 
@@ -301,8 +301,9 @@ def absolute_urls(prop):
     'content': get_html(prop.get('content')),
     'url': urls[0] if urls else None,
     'urls': [{'value': u} for u in urls] if urls and len(urls) > 1 else None,
-    'image': absolute_urls('photo'),
-    'stream': absolute_urls('video'),
+    'image': [{'url': url} for url in
+              util.dedupe_urls(absolute_urls('photo') + absolute_urls('featured'))],
+    'stream': [{'url': url} for url in absolute_urls('video')],
     'location': json_to_object(prop.get('location')),
     'replies': {'items': [json_to_object(c) for c in props.get('comment', [])]},
     'tags': [{'objectType': 'hashtag', 'displayName': cat}

granary/test/testdata/article_with_featured.as-from-mf2.json

@@ -0,0 +1,6 @@
+{
+  "objectType": "article",
+  "displayName": "article abc",
+  "content": "foo bar",
+  "image": [{"url": "http://feat/ured.jpg"}]
+}

granary/test/testdata/article_with_featured.mf2.json

@@ -0,0 +1,8 @@
+{
+  "type": ["h-entry"],
+  "properties": {
+    "name": ["article abc"],
+    "content": ["foo bar"],
+    "featured": ["http://feat/ured.jpg"]
+  }
+}

granary/test/testdata/article_with_photo_and_featured.as-from-mf2.json

@@ -0,0 +1,6 @@
+{
+  "objectType": "article",
+  "displayName": "article abc",
+  "content": "foo bar",
+  "image": [{"url": "http://a/png"}, {"url": "http://b/jpg"}, {"url": "http://c/gif"}]
+}

granary/test/testdata/article_with_photo_and_featured.mf2.json

@@ -0,0 +1,9 @@
+{
+  "type": ["h-entry"],
+  "properties": {
+    "name": ["article abc"],
+    "content": ["foo bar"],
+    "photo": ["http://a/png", "http://b/jpg"],
+    "featured": ["http://b/jpg", "http://c/gif"]
+  }
+}