From 1bcdff79e7e14b2166056d3b16531b32474c374b Mon Sep 17 00:00:00 2001
From: Andrew Godwin
Date: Thu, 15 Dec 2022 19:26:06 -0700
Subject: Fix hashtag linking and API mentions of empty

---
 activities/models/hashtag.py | 9 +++++++--
 activities/models/post.py    | 9 +++++----
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/activities/models/hashtag.py b/activities/models/hashtag.py
index 4e1a735..a850ec3 100644
--- a/activities/models/hashtag.py
+++ b/activities/models/hashtag.py
@@ -179,10 +179,15 @@ class Hashtag(StatorModel):
         return list(hashtags)
 
     @classmethod
-    def linkify_hashtags(cls, content) -> str:
+    def linkify_hashtags(cls, content, domain=None) -> str:
         def replacer(match):
             hashtag = match.group(1)
-            return f'<a class="hashtag" href="/tags/{hashtag.lower()}/">#{hashtag}</a>'
+            if domain:
+                return f'<a class="hashtag" href="https://{domain.uri_domain}/tags/{hashtag.lower()}/">#{hashtag}</a>'
+            else:
+                return (
+                    f'<a class="hashtag" href="/tags/{hashtag.lower()}/">#{hashtag}</a>'
+                )
 
         return mark_safe(Hashtag.hashtag_regex.sub(replacer, content))
 
diff --git a/activities/models/post.py b/activities/models/post.py
index df80457..b5821f7 100644
--- a/activities/models/post.py
+++ b/activities/models/post.py
@@ -348,7 +348,8 @@ class Post(StatorModel):
         Returns the content formatted for remote consumption
         """
         return Hashtag.linkify_hashtags(
-            self.linkify_mentions(sanitize_post(self.content))
+            self.linkify_mentions(sanitize_post(self.content)),
+            domain=self.author.domain,
         )
 
     def safe_content_plain(self):
@@ -835,9 +836,9 @@ class Post(StatorModel):
             "mentions": [
                 {
                     "id": mention.id,
-                    "username": mention.username,
-                    "url": mention.absolute_profile_uri(),
-                    "acct": mention.handle,
+                    "username": mention.username or "",
+                    "url": mention.absolute_profile_uri() or "",
+                    "acct": mention.handle or "",
                 }
                 for mention in self.mentions.all()
                 if mention.username
-- 
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