Display Webmention as replies when applicable

app/utils/facepile.py

@@ -1,5 +1,6 @@
 import datetime
 from dataclasses import dataclass
+from typing import Any
 from typing import Optional
 
 from loguru import logger
@@ -7,7 +8,9 @@ from loguru import logger
 from app import media
 from app.models import InboxObject
 from app.models import Webmention
+from app.models import WebmentionType
 from app.utils.url import make_abs
+from app.utils.datetime import parse_isoformat
 
 
 @dataclass
@@ -36,7 +39,9 @@ class Face:
                 try:
                     return cls(
                         ap_actor_id=None,
-                        url=webmention.source,
+                        url=(
+                            item["properties"]["url"][0] if item["properties"].get("url") else webmention.source
+                        ),
                         name=item["properties"]["name"][0],
                         picture_url=media.resized_media_url(
                             make_abs(
@@ -81,3 +86,66 @@ def merge_faces(faces: list[Face]) -> list[Face]:
         key=lambda f: f.created_at,
         reverse=True,
     )[:10]
+
+
+def _parse_face(webmention: Webmention, items: list[dict[str, Any]]) -> Face | None:
+    for item in items:
+        if item["type"][0] == "h-card":
+            try:
+                return Face(
+                    ap_actor_id=None,
+                    url=(
+                        items["properties"]["url"][0] if item["properties"].get("url") else webmention.source
+                    ),
+                    name=item["properties"]["name"][0],
+                    picture_url=media.resized_media_url(
+                        make_abs(
+                            item["properties"]["photo"][0], webmention.source
+                        ),  # type: ignore
+                        50,
+                    ),
+                    created_at=webmention.created_at,  # type: ignore
+                )
+            except Exception:
+                logger.exception(
+                    f"Failed to build Face for webmention id={webmention.id}"
+                )
+                break
+
+
+@dataclass
+class WebmentionReply:
+    face: Face
+    content: str
+    url: str
+    published_at: datetime.datetime
+
+    @classmethod
+    def from_webmention(cls, webmention: Webmention) -> "WebmentionReply":
+        if webmention.webmention_type != WebmentionType.REPLY:
+            raise ValueError(f"Unexpected webmention {webmention.id}")
+
+        items = webmention.source_microformats.get("items", [])  # type: ignore
+        for item in items:
+            if item["type"][0] == "h-entry":
+                try:
+                    face = _parse_face(webmention, item["properties"].get("author", []))
+                    if not face:
+                        logger.info(
+                            "Failed to build WebmentionReply/Face for "
+                            f"webmention id={webmention.id}"
+                        )
+                        break
+                    return cls(
+                        face=face,
+                        content=item["properties"]["content"][0]["html"],
+                        url=item["properties"]["url"][0],
+                        published_at=parse_isoformat(
+                            item["properties"]["published"][0]
+                        ).replace(tzinfo=None),
+                    )
+                except Exception:
+                    logger.exception(
+                        f"Failed to build Face for webmention id={webmention.id}"
+                    )
+                    break