Render hashtag links with data-mention="hashtag" attribute

bookwyrm/activitypub/note.py

@@ -62,7 +62,7 @@ class Note(ActivityObject):
         changed_content = False
         for hashtag in instance.mention_hashtags.all():
             updated_content = re.sub(
-                rf'(<a href=")[^"]*/hashtag/[^"]*(">{hashtag.name}</a>)',
+                rf'(<a href=")[^"]*(" data-mention="hashtag">{hashtag.name}</a>)',
                 rf"\1{hashtag.remote_id}\2",
                 instance.content,
             )

bookwyrm/tests/activitypub/test_note.py

@@ -33,7 +33,8 @@ class Note(TestCase):
             attributedTo=self.user.remote_id,
             inReplyToBook=self.book.remote_id,
             content="<p>This is interesting "
-            + '<a href="https://test-instance.org/hashtag/2">#BookClub</a></p>',
+            + '<a href="https://test-instance.org/hashtag/2" data-mention="hashtag">'
+            + "#BookClub</a></p>",
             published="2023-02-17T23:12:59.398030+00:00",
             to=[],
             cc=[],
@@ -57,5 +58,7 @@ class Note(TestCase):
         self.assertIsNotNone(hashtag)
         self.assertEqual(
             instance.content,
-            f'<p>This is interesting <a href="{hashtag.remote_id}">#BookClub</a></p>',
+            "<p>This is interesting "
+            + f'<a href="{hashtag.remote_id}" data-mention="hashtag">'
+            + "#BookClub</a></p>",
         )

bookwyrm/tests/views/test_status.py

@@ -359,8 +359,10 @@ class StatusViews(TestCase):
         hashtag_new = models.Hashtag.objects.filter(name="#new").first()
         self.assertEqual(
             status.content,
-            f'<p>this is an <a href="{hashtag_exising.remote_id}">#existing</a> '
+            "<p>this is an "
-            + f'hashtag, this one is <a href="{hashtag_new.remote_id}">#new</a>.</p>',
+            + f'<a href="{hashtag_exising.remote_id}" data-mention="hashtag">'
+            + "#existing</a> hashtag, this one is "
+            + f'<a href="{hashtag_new.remote_id}" data-mention="hashtag">#new</a>.</p>',
         )
 
     def test_find_hashtags(self, *_):

bookwyrm/utils/sanitizer.py

@@ -21,6 +21,6 @@ def clean(input_text):
             "ol",
             "li",
         ],
-        attributes=["href", "rel", "src", "alt"],
+        attributes=["href", "rel", "src", "alt", "data-mention"],
         strip=True,
     )

bookwyrm/views/status.py

@@ -123,7 +123,8 @@ class CreateStatus(View):
             # turn the mention into a link
             content = re.sub(
                 rf"{mention_text}\b(?!@)",
-                rf'<a href="{mention_hashtag.remote_id}">{mention_text}</a>',
+                rf'<a href="{mention_hashtag.remote_id}" data-mention="hashtag">'
+                + rf"{mention_text}</a>",
                 content,
             )