From 9c95a74d56bf80fb1f09984a9c05b16d25d320da Mon Sep 17 00:00:00 2001
From: strawberry <strawberry@puppygock.gay>
Date: Fri, 15 Nov 2024 16:35:58 -0500
Subject: [PATCH] fix getting canonical alias server for backfill

Signed-off-by: strawberry <strawberry@puppygock.gay>
---
 src/service/rooms/timeline/mod.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/service/rooms/timeline/mod.rs b/src/service/rooms/timeline/mod.rs
index 2faa1c40..59fc8e93 100644
--- a/src/service/rooms/timeline/mod.rs
+++ b/src/service/rooms/timeline/mod.rs
@@ -4,6 +4,7 @@ use std::{
 	cmp,
 	collections::{BTreeMap, HashSet},
 	fmt::Write,
+	iter::once,
 	sync::Arc,
 };
 
@@ -1076,9 +1077,20 @@ impl Service {
 			}
 		});
 
+		let canonical_room_alias_server = once(
+			self.services
+				.state_accessor
+				.get_canonical_alias(room_id)
+				.await,
+		)
+		.filter_map(Result::ok)
+		.map(|alias| alias.server_name().to_owned())
+		.stream();
+
 		let mut servers = room_mods
 			.stream()
 			.map(ToOwned::to_owned)
+			.chain(canonical_room_alias_server)
 			.chain(
 				self.services
 					.server