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Add Phase 5: link-card fragments, oEmbed endpoints, OG meta

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- fetch_fragment_batch() for N+1 avoidance with per-key Redis cache
- link-card fragment handlers in blog, market, events, federation (single + batch mode)
- link_card.html templates per app with content-specific previews
- shared/infrastructure/oembed.py: build_oembed_response, build_og_meta, build_oembed_link_tag
- GET /oembed routes on blog, market, events
- og_meta + oembed_link rendering in base template <head>
- INTERNAL_URL_ARTDAG in docker-compose.yml for cross-stack fragment fetches

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
giles
2026-02-24 21:44:11 +00:00
parent 4d7f8cfea2
commit b3d853ad35
15 changed files with 601 additions and 0 deletions
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47
federation/bp/fragments/routes.py
View File

@@ -29,6 +29,53 @@ def register():
html = await handler()
return Response(html, status=200, content_type="text/html")
# --- link-card fragment: actor profile preview card --------------------------
async def _link_card_handler():
from quart import g, render_template
from shared.services.registry import services
from shared.infrastructure.urls import federation_url
username = request.args.get("username", "")
slug = request.args.get("slug", "")
keys_raw = request.args.get("keys", "")
# Batch mode
if keys_raw:
usernames = [k.strip() for k in keys_raw.split(",") if k.strip()]
parts = []
for u in usernames:
parts.append(f"<!-- fragment:{u} -->")
actor = await services.federation.get_actor_by_username(g.s, u)
if actor:
parts.append(await render_template(
"fragments/link_card.html",
display_name=actor.display_name,
username=actor.preferred_username,
avatar_url=None,
summary=actor.summary,
link=federation_url(f"/users/{actor.preferred_username}"),
))
return "\n".join(parts)
# Single mode
lookup = username or slug
if not lookup:
return ""
actor = await services.federation.get_actor_by_username(g.s, lookup)
if not actor:
return ""
return await render_template(
"fragments/link_card.html",
display_name=actor.display_name,
username=actor.preferred_username,
avatar_url=None,
summary=actor.summary,
link=federation_url(f"/users/{actor.preferred_username}"),
)
_handlers["link-card"] = _link_card_handler
bp._fragment_handlers = _handlers
return bp

18
federation/templates/fragments/link_card.html Normal file
View File

@@ -0,0 +1,18 @@
<a href="{{ link }}" class="block rounded border border-stone-200 bg-white hover:bg-stone-50 transition-colors no-underline" data-fragment="link-card" data-app="federation" data-hx-disable>
<div class="flex flex-row items-center gap-3 p-3">
{% if avatar_url %}
<img src="{{ avatar_url }}" alt="" class="flex-shrink-0 w-12 h-12 rounded-full object-cover">
{% else %}
<div class="flex-shrink-0 w-12 h-12 rounded-full bg-stone-100 flex items-center justify-center text-stone-400">
<i class="fas fa-user text-lg"></i>
</div>
{% endif %}
<div class="flex-1 min-w-0">
<div class="font-medium text-stone-900 text-sm">{{ display_name or username }}</div>
<div class="text-xs text-stone-500">@{{ username }}</div>
{% if summary %}
<div class="text-xs text-stone-500 mt-1 clamp-2">{{ summary }}</div>
{% endif %}
</div>
</div>
</a>