fix: dispatcher auto restarts

since akkoma is destroying my postgres, I/O is maxed out and sqlite
queries time out. restart the dispatcher worker if it fails!
this is kind of a nasty fix, but whatev

src/server/dispatcher.rs

@@ -3,7 +3,7 @@ use sea_orm::{ColumnTrait, DatabaseConnection, EntityTrait, Order, QueryFilter,
 use tokio::{sync::broadcast, task::JoinHandle};
 
 use apb::{ActivityMut, Node};
-use crate::{errors::UpubError, model, routes::activitypub::jsonld::LD, server::{fetcher::Fetcher, Context}};
+use crate::{model, routes::activitypub::jsonld::LD, server::{fetcher::Fetcher, Context}};
 
 pub struct Dispatcher {
 	waker: broadcast::Sender<()>,
@@ -18,10 +18,13 @@ impl Default for Dispatcher {
 
 impl Dispatcher {
 	pub fn spawn(&self, db: DatabaseConnection, domain: String, poll_interval: u64) -> JoinHandle<()> {
-		let waker = self.waker.subscribe();
+		let mut waker = self.waker.subscribe();
 		tokio::spawn(async move {
-			if let Err(e) = worker(db, domain, poll_interval, waker).await {
-				tracing::error!("delivery worker exited with error: {e}");
+			loop {
+				if let Err(e) = worker(&db, &domain, poll_interval, &mut waker).await {
+					tracing::error!("delivery worker exited with error: {e}");
+				}
+				tokio::time::sleep(std::time::Duration::from_secs(poll_interval * 10)).await;
 			}
 		})
 	}
@@ -34,12 +37,12 @@ impl Dispatcher {
 	}
 }
 
-async fn worker(db: DatabaseConnection, domain: String, poll_interval: u64, mut waker: broadcast::Receiver<()>) -> Result<(), UpubError> {
+async fn worker(db: &DatabaseConnection, domain: &str, poll_interval: u64, waker: &mut broadcast::Receiver<()>) -> crate::Result<()> {
 	loop {
 		let Some(delivery) = model::delivery::Entity::find()
 			.filter(model::delivery::Column::NotBefore.lte(chrono::Utc::now()))
 			.order_by(model::delivery::Column::NotBefore, Order::Asc)
-			.one(&db)
+			.one(db)
 			.await?
 		else {
 			tokio::select! {
@@ -55,7 +58,7 @@ async fn worker(db: DatabaseConnection, domain: String, poll_interval: u64, mut
 			..Default::default()
 		};
 		let del = model::delivery::Entity::delete(del_row)
-			.exec(&db)
+			.exec(db)
 			.await?;
 
 		if del.rows_affected == 0 {
@@ -71,7 +74,7 @@ async fn worker(db: DatabaseConnection, domain: String, poll_interval: u64, mut
 
 		let payload = match model::activity::Entity::find_by_id(&delivery.activity)
 			.find_also_related(model::object::Entity)
-			.one(&db)
+			.one(db)
 			.await? // TODO probably should not fail here and at least re-insert the delivery
 		{
 			Some((activity, None)) => activity.ap().ld_context(),
@@ -98,7 +101,7 @@ async fn worker(db: DatabaseConnection, domain: String, poll_interval: u64, mut
 
 		let key = if delivery.actor == format!("https://{domain}") {
 			let Some(model::application::Model { private_key: key, .. }) = model::application::Entity::find()
-				.one(&db).await?
+				.one(db).await?
 			else {
 				tracing::error!("no private key configured for application");
 				continue;
@@ -106,7 +109,7 @@ async fn worker(db: DatabaseConnection, domain: String, poll_interval: u64, mut
 			key
 		} else {
 			let Some(model::user::Model{ private_key: Some(key), .. }) = model::user::Entity::find_by_id(&delivery.actor)
-				.one(&db).await?
+				.one(db).await?
 			else { 
 				tracing::error!("can not dispatch activity for user without private key: {}", delivery.actor);
 				continue;
@@ -118,7 +121,7 @@ async fn worker(db: DatabaseConnection, domain: String, poll_interval: u64, mut
 		if let Err(e) = Context::request(
 			Method::POST, &delivery.target,
 			Some(&serde_json::to_string(&payload).unwrap()),
-			&delivery.actor, &key, &domain
+			&delivery.actor, &key, domain
 		).await {
 			tracing::warn!("failed delivery of {} to {} : {e}", delivery.activity, delivery.target);
 			let new_delivery = model::delivery::ActiveModel {
@@ -130,7 +133,7 @@ async fn worker(db: DatabaseConnection, domain: String, poll_interval: u64, mut
 				created: sea_orm::ActiveValue::Set(delivery.created),
 				attempt: sea_orm::ActiveValue::Set(delivery.attempt + 1),
 			};
-			model::delivery::Entity::insert(new_delivery).exec(&db).await?;
+			model::delivery::Entity::insert(new_delivery).exec(db).await?;
 		}
 	}
 }

web/src/components/activity.rs

@@ -1,7 +1,7 @@
 use leptos::*;
 use crate::prelude::*;
 
-use apb::{target::Addressed, Activity, Object};
+use apb::{target::Addressed, Base, Activity, Object};
 
 
 #[component]
@@ -31,3 +31,39 @@ pub fn ActivityLine(activity: crate::Object) -> impl IntoView {
 		</div>
 	}
 }
+
+#[component]
+pub fn Item(item: crate::Object) -> impl IntoView {
+	let id = item.id().unwrap_or_default().to_string();
+	match item.object_type() {
+		// special case for placeholder activities
+		Some(apb::ObjectType::Note) | Some(apb::ObjectType::Document(_)) =>
+			view! { <Object object=item /> }.into_view(),
+		// everything else
+		Some(apb::ObjectType::Activity(t)) => {
+			let object_id = item.object().id().unwrap_or_default();
+			let object = match t {
+				apb::ActivityType::Create | apb::ActivityType::Announce => 
+					CACHE.get(&object_id).map(|obj| {
+						view! { <Object object=obj /> }
+					}.into_view()),
+				apb::ActivityType::Follow =>
+					CACHE.get(&object_id).map(|obj| {
+						view! {
+							<div class="ml-1">
+								<ActorBanner object=obj />
+								<FollowRequestButtons activity_id=id actor_id=object_id />
+							</div>
+						}
+					}.into_view()),
+				_ => None,
+			};
+			view! {
+				<ActivityLine activity=item />
+				{object}
+			}.into_view()
+		},
+		// should never happen
+		_ => view! { <p><code>type not implemented</code></p> }.into_view(),
+	}
+}

web/src/components/timeline.rs

@@ -92,44 +92,15 @@ pub fn TimelineRepliesRecursive(tl: Timeline, root: String) -> impl IntoView {
 		<For
 			each=root_values
 			key=|k| k.id().unwrap_or_default().to_string()
-			children=move |object: crate::Object| {
-				match object.object_type() {
-					Some(apb::ObjectType::Activity(apb::ActivityType::Create)) => {
-						let oid = object.object().id().unwrap_or_default().to_string();
-						if let Some(note) = CACHE.get(&oid) {
-							view! {
-								<div class="context depth-r">
-									<ActivityLine activity=object />
-									<Object object=note />
-									<div class="depth-r">
-										<TimelineRepliesRecursive tl=tl root=oid />
-									</div>
-								</div>
-							}
-						} else {
-							view! {
-								<div class="context depth-r">
-									<ActivityLine activity=object />
-								</div>
-							}
-						}
-					},
-					Some(apb::ObjectType::Activity(_)) => view! {
-						<div class="context depth-r">
-							<ActivityLine activity=object />
+			children=move |obj: crate::Object| {
+				let oid = obj.id().unwrap_or_default().to_string();
+				view! {
+					<div class="context depth-r">
+						<Item item=obj />
+						<div class="depth-r">
+							<TimelineRepliesRecursive tl=tl root=oid />
 						</div>
-					},
-					_ => {
-						let oid = object.id().unwrap_or_default().to_string();
-						view! {
-							<div class="context depth-r">
-								<Object object=object />
-								<div class="depth-r">
-									<TimelineRepliesRecursive tl=tl root=oid />
-								</div>
-							</div>
-						}
-					},
+					</div>
 				}
 			}
 		/ >
@@ -168,42 +139,13 @@ pub fn TimelineFeed(tl: Timeline) -> impl IntoView {
 			key=|k| k.to_string()
 			children=move |id: String| {
 				match CACHE.get(&id) {
-					Some(item) => match item.object_type() {
-						// special case for placeholder activities
-						Some(apb::ObjectType::Note) => view! {
-								<Object object=item.clone() />
-								<hr/ >
-							}.into_view(),
-						// everything else
-						Some(apb::ObjectType::Activity(t)) => {
-							let object_id = item.object().id().unwrap_or_default();
-							let object = match t {
-								apb::ActivityType::Create | apb::ActivityType::Announce => 
-									CACHE.get(&object_id).map(|obj| {
-										view! { <Object object=obj /> }
-									}.into_view()),
-								apb::ActivityType::Follow =>
-									CACHE.get(&object_id).map(|obj| {
-										view! {
-											<div class="ml-1">
-												<ActorBanner object=obj />
-												<FollowRequestButtons activity_id=id actor_id=object_id />
-											</div>
-										}
-									}.into_view()),
-								_ => None,
-							};
-							view! {
-								<ActivityLine activity=item />
-								{object}
-								<hr/ >
-							}.into_view()
-						},
-						// should never happen
-						_ => view! { <p><code>type not implemented</code></p><hr /> }.into_view(),
-					},
+					Some(i) => view! {
+						<Item item=i />
+						<hr />
+					}.into_view(),
 					None => view! {
 						<p><code>{id}</code>" "[<a href={uri}>go</a>]</p>
+						<hr />
 					}.into_view(),
 				}
 			}