Fix static file URLs

api/schemas.py

@@ -35,8 +35,8 @@ class Account(Schema):
     note: str
     avatar: str
     avatar_static: str
-    header: str
+    header: str | None = Field(...)
-    header_static: str
+    header_static: str | None = Field(...)
     locked: bool
     fields: list[AccountField]
     emojis: list[CustomEmoji]

core/uris.py

@@ -1,6 +1,7 @@
 from urllib.parse import urljoin
 
 from django.conf import settings
+from django.templatetags.static import static
 
 
 class RelativeAbsoluteUrl:
@@ -32,3 +33,18 @@ class AutoAbsoluteUrl(RelativeAbsoluteUrl):
         else:
             absolute_prefix = f"https://{settings.MAIN_DOMAIN}/"
         self.absolute = urljoin(absolute_prefix, self.relative)
+
+
+class StaticAbsoluteUrl(RelativeAbsoluteUrl):
+    """
+    Creates static URLs given only the static-relative path
+    """
+
+    def __init__(self, path: str):
+        static_url = static(path)
+        if "://" in static_url:
+            super().__init__(static_url)
+        else:
+            super().__init__(
+                urljoin(f"https://{settings.MAIN_DOMAIN}/", static_url), static_url
+            )

users/models/identity.py

@@ -7,7 +7,6 @@ import urlman
 from asgiref.sync import async_to_sync, sync_to_async
 from django.db import IntegrityError, models
 from django.template.defaultfilters import linebreaks_filter
-from django.templatetags.static import static
 from django.utils import timezone
 from django.utils.functional import lazy
 
@@ -17,7 +16,7 @@ from core.ld import canonicalise, format_ld_date, get_list, media_type_from_file
 from core.models import Config
 from core.signatures import HttpSignature, RsaKeys
 from core.uploads import upload_namer
-from core.uris import AutoAbsoluteUrl, RelativeAbsoluteUrl
+from core.uris import AutoAbsoluteUrl, RelativeAbsoluteUrl, StaticAbsoluteUrl
 from stator.models import State, StateField, StateGraph, StatorModel
 from users.models.domain import Domain
 from users.models.system_actor import SystemActor
@@ -156,7 +155,7 @@ class Identity(StatorModel):
         elif self.icon_uri:
             return AutoAbsoluteUrl(f"/proxy/identity_icon/{self.pk}/")
         else:
-            return RelativeAbsoluteUrl(static("img/unknown-icon-128.png"))
+            return StaticAbsoluteUrl("img/unknown-icon-128.png")
 
     def local_image_url(self) -> RelativeAbsoluteUrl | None:
         """