feat(activitypub-base): broadcast_like/undo_like + LikeActivity inbox handler

crates/adapters/activitypub-base/src/activities.rs

@@ -516,6 +516,12 @@ impl Activity for AnnounceActivity {
                 self.published.unwrap_or_else(chrono::Utc::now),
             )
             .await?;
+        data.object_handler
+            .on_announce_received(&self.object, self.actor.inner())
+            .await
+            .unwrap_or_else(|e| {
+                tracing::warn!(error = %e, "failed to process announce notification");
+            });
         tracing::info!(actor = %self.actor.inner(), object = %self.object, "received announce");
         Ok(())
     }
@@ -533,6 +539,45 @@ pub struct LikeActivity {
     pub object: Url,
 }
 
+#[async_trait::async_trait]
+impl Activity for LikeActivity {
+    type DataType = FederationData;
+    type Error = crate::error::Error;
+
+    fn id(&self) -> &Url {
+        &self.id
+    }
+
+    fn actor(&self) -> &Url {
+        self.actor.inner()
+    }
+
+    async fn verify(&self, _data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    async fn receive(self, data: &Data<Self::DataType>) -> Result<(), Self::Error> {
+        let domain = self.actor().host_str().unwrap_or("");
+        if data.federation_repo.is_domain_blocked(domain).await? {
+            tracing::info!(actor = %self.actor(), "ignoring Like from blocked domain");
+            return Ok(());
+        }
+
+        // Only process if the liked object is on our instance.
+        if self.object.host_str().unwrap_or("") != data.domain {
+            return Ok(());
+        }
+
+        data.object_handler
+            .on_like(&self.object, self.actor.inner())
+            .await
+            .map_err(|e| crate::error::Error::from(anyhow::anyhow!(e)))?;
+
+        tracing::info!(actor = %self.actor.inner(), object = %self.object, "received like");
+        Ok(())
+    }
+}
+
 // --- Add ---
 
 #[derive(Clone, Default, Debug, Serialize, Deserialize)]
@@ -664,4 +709,6 @@ pub enum InboxActivities {
     Add(AddActivity),
     #[serde(rename = "Block")]
     Block(BlockActivity),
+    #[serde(rename = "Like")]
+    Like(LikeActivity),
 }