mastodon: use /web/statuses/... when we have status id but not username

eg inReplyTo URLs

granary/mastodon.py

@@ -5,7 +5,7 @@
 independent of AP. API docs: https://docs.joinmastodon.org/api/
 
 TODO:
-* username in inReplyTo URLs
+* get_activities(): start_index, count, min_id
 * de-dupe media attachments
 * caching
 * block lists
@@ -327,9 +327,7 @@ def status_to_object(self, status):
     if reply_to_id:
       obj['inReplyTo'] = [{
         'id': self.tag_uri(reply_to_id),
-        # XXX TODO need to generate URL for in-reply-to status, but we don't
-        # have its author's username, just their account id
-        'url': urllib.parse.urljoin(self.instance, '/TODO/status/' + reply_to_id),
+        'url': urllib.parse.urljoin(self.instance, '/web/statuses/' + reply_to_id),
       }]
 
     # to (ie visibility)

granary/tests/test_mastodon.py

@@ -139,7 +139,7 @@ def tag_uri(name):
 })
 REPLY_OBJECT = copy.deepcopy(OBJECT)  # ActivityStreams
 REPLY_OBJECT['inReplyTo'] = [{
-  'url': 'http://foo.com/TODO/status/456',
+  'url': 'http://foo.com/web/statuses/456',
   'id': tag_uri('456'),
 }]
 REPLY_ACTIVITY = copy.deepcopy(ACTIVITY)  # ActivityStreams
@@ -341,12 +341,17 @@ def test_get_activities_activity_id(self):
     self.mox.ReplayAll()
     self.assert_equals([ACTIVITY], self.mastodon.get_activities(activity_id=123))
 
-  def test_get_activities_user_id(self):
+  def test_get_activities_self_user_id(self):
     self.expect_get(API_ACCOUNT_STATUSES % '456', [STATUS])
     self.mox.ReplayAll()
     self.assert_equals([ACTIVITY], self.mastodon.get_activities(
       group_id=source.SELF, user_id=456))
 
+  def test_get_activities_self_default_user(self):
+    self.expect_get(API_ACCOUNT_STATUSES % ACCOUNT['id'], [STATUS])
+    self.mox.ReplayAll()
+    self.assert_equals([ACTIVITY], self.mastodon.get_activities(group_id=source.SELF))
+
   def test_get_activities_search(self):
     self.expect_get(API_SEARCH, params={'q': 'indieweb'},
                     response={'statuses': [STATUS, MEDIA_STATUS]})