From 994e1d12a7e1166841753338eb8ca8f2199195ef Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Thu, 12 Feb 2026 09:01:46 +0000
Subject: [PATCH] Optimize various case-insensitive comparisons.

Signed-off-by: Jason Volk <jason@zemos.net>
---
 src/api/client/state.rs        | 4 ++--
 src/service/media/preview.rs   | 2 +-
 src/service/oauth/providers.rs | 8 ++++----
 src/service/pusher/mod.rs      | 2 +-
 src/service/pusher/send.rs     | 2 +-
 5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/src/api/client/state.rs b/src/api/client/state.rs
index 1e6b56ea..cb135ec1 100644
--- a/src/api/client/state.rs
+++ b/src/api/client/state.rs
@@ -133,8 +133,8 @@ pub(crate) async fn get_state_events_for_key_route(
 
 	let event_format = body
 		.format
-		.as_ref()
-		.is_some_and(|f| f.to_lowercase().eq("event"));
+		.as_deref()
+		.is_some_and(|f| f.eq_ignore_ascii_case("event"));
 
 	Ok(get_state_event_for_key::v3::Response {
 		content: event_format.or(|| event.get_content_as_value()),
diff --git a/src/service/media/preview.rs b/src/service/media/preview.rs
index 06c0be96..fb0edc35 100644
--- a/src/service/media/preview.rs
+++ b/src/service/media/preview.rs
@@ -224,7 +224,7 @@ async fn download_html(&self, _url: &str) -> Result<UrlPreviewData> {
 pub fn url_preview_allowed(&self, url: &Url) -> bool {
 	if ["http", "https"]
 		.iter()
-		.all(|&scheme| scheme != url.scheme().to_lowercase())
+		.all(|&scheme| !scheme.eq_ignore_ascii_case(url.scheme()))
 	{
 		debug!("Ignoring non-HTTP/HTTPS URL to preview: {}", url);
 		return false;
diff --git a/src/service/oauth/providers.rs b/src/service/oauth/providers.rs
index 4559260e..39f3170a 100644
--- a/src/service/oauth/providers.rs
+++ b/src/service/oauth/providers.rs
@@ -69,11 +69,11 @@ pub fn get_config(&self, id: &str) -> Result<Provider> {
 
 	if let Some(provider) = providers
 		.values()
-		.find(|config| config.brand == id.to_lowercase())
+		.find(|config| config.brand.eq_ignore_ascii_case(id))
 		.filter(|_| {
 			providers
 				.values()
-				.filter(|config| config.brand == id.to_lowercase())
+				.filter(|config| config.brand.eq_ignore_ascii_case(id))
 				.count()
 				.eq(&1)
 		})
@@ -97,11 +97,11 @@ async fn get_cached(&self, id: &str) -> Option<Provider> {
 
 	providers
 		.values()
-		.find(|provider| provider.brand == id.to_lowercase())
+		.find(|provider| provider.brand.eq_ignore_ascii_case(id))
 		.filter(|_| {
 			providers
 				.values()
-				.filter(|provider| provider.brand == id.to_lowercase())
+				.filter(|provider| provider.brand.eq_ignore_ascii_case(id))
 				.count()
 				.eq(&1)
 		})
diff --git a/src/service/pusher/mod.rs b/src/service/pusher/mod.rs
index 46b6a39f..da2cccec 100644
--- a/src/service/pusher/mod.rs
+++ b/src/service/pusher/mod.rs
@@ -104,7 +104,7 @@ pub async fn set_pusher(
 
 				if ["http", "https"]
 					.iter()
-					.all(|&scheme| scheme != url.scheme().to_lowercase())
+					.all(|&scheme| !scheme.eq_ignore_ascii_case(url.scheme()))
 				{
 					return Err!(Request(InvalidParam(
 						warn!(%url, "HTTP pusher URL is not a valid HTTP/HTTPS URL")
diff --git a/src/service/pusher/send.rs b/src/service/pusher/send.rs
index 7a0635f2..7187611e 100644
--- a/src/service/pusher/send.rs
+++ b/src/service/pusher/send.rs
@@ -97,7 +97,7 @@ async fn send_notice<Pdu: Event>(
 
 			if ["http", "https"]
 				.iter()
-				.all(|&scheme| scheme != url.scheme().to_lowercase())
+				.all(|&scheme| !scheme.eq_ignore_ascii_case(url.scheme()))
 			{
 				return Err!(Request(InvalidParam(
 					warn!(%url, "HTTP pusher URL is not a valid HTTP/HTTPS URL")