From e2c72bcff83f58e6d305615833547d29cf3a4e4a Mon Sep 17 00:00:00 2001
From: Felitendo <felitendoyt@gmail.com>
Date: Thu, 17 Sep 2026 16:53:23 +0200
Subject: [PATCH] fix: clearer errors for custom server addresses

---
 ...-from-other-authlib-injector-servers.patch | 55 +++++++++++++++----
 ...-in-to-custom-servers-in-the-browser.patch | 54 ++++++++++--------
 2 files changed, 73 insertions(+), 36 deletions(-)

diff --git a/patches/0019-Add-accounts-from-other-authlib-injector-servers.patch b/patches/0019-Add-accounts-from-other-authlib-injector-servers.patch
index c4a318e..9e50aa6 100644
--- a/patches/0019-Add-accounts-from-other-authlib-injector-servers.patch
+++ b/patches/0019-Add-accounts-from-other-authlib-injector-servers.patch
@@ -25,7 +25,7 @@ sits in the refresh token column in front of the client token, and the
 account list shows which server an account is on.
 ---
  .../src/components/ui/AccountsCard.vue        | 112 +++--
- .../src/components/ui/AuthlibAccountModal.vue | 307 +++++++++++++
+ .../src/components/ui/AuthlibAccountModal.vue | 334 ++++++++++++++
  .../src/components/ui/MicrosoftLogo.vue       |   8 +
  .../components/ui/TitleBarAccountSwitcher.vue |  63 ++-
  .../MinecraftRequiredModal.vue                |  23 +-
@@ -35,8 +35,8 @@ account list shows which server an account is on.
  packages/app-lib/src/api/minecraft_auth.rs    |  77 +++-
  packages/app-lib/src/launcher/mod.rs          |  11 +-
  packages/app-lib/src/state/minecraft_auth.rs  | 422 ++++++++++++------
- packages/app-lib/src/util/authlib_injector.rs | 134 +++++-
- 12 files changed, 1001 insertions(+), 211 deletions(-)
+ packages/app-lib/src/util/authlib_injector.rs | 138 +++++-
+ 12 files changed, 1032 insertions(+), 211 deletions(-)
  create mode 100644 apps/app-frontend/src/components/ui/AuthlibAccountModal.vue
  create mode 100644 apps/app-frontend/src/components/ui/MicrosoftLogo.vue
 
@@ -260,10 +260,10 @@ index 632483e..03a61f2 100644
  		id: 'minecraft-account.remove-account',
 diff --git a/apps/app-frontend/src/components/ui/AuthlibAccountModal.vue b/apps/app-frontend/src/components/ui/AuthlibAccountModal.vue
 new file mode 100644
-index 0000000..4aab3f9
+index 0000000..a2873fe
 --- /dev/null
 +++ b/apps/app-frontend/src/components/ui/AuthlibAccountModal.vue
-@@ -0,0 +1,307 @@
+@@ -0,0 +1,334 @@
 +<template>
 +	<NewModal ref="modal" :header="formatMessage(messages.header)" max-width="480px" width="100%">
 +		<div class="flex flex-col gap-4">
@@ -301,6 +301,13 @@ index 0000000..4aab3f9
 +							{{ formatMessage(messages.register) }}
 +						</a>
 +					</p>
++					<p
++						v-else-if="lookingUp"
++						class="m-0 flex items-center gap-2 text-sm leading-tight text-secondary"
++					>
++						<SpinnerIcon aria-hidden="true" class="animate-spin" />
++						{{ formatMessage(messages.lookingUp) }}
++					</p>
 +					<p v-else class="m-0 text-sm leading-tight text-secondary">
 +						{{ formatMessage(messages.serverHint) }}
 +					</p>
@@ -437,10 +444,14 @@ index 0000000..4aab3f9
 +const profile = ref<Profile | null>(null)
 +const error = ref('')
 +const submitting = ref(false)
++const lookingUp = ref(false)
 +let lookup = 0
 +
 +function message(e: unknown) {
-+	return typeof e === 'string' ? e : ((e as Error)?.message ?? formatMessage(messages.genericError))
++	const text =
++		typeof e === 'string' ? e : ((e as Error)?.message ?? formatMessage(messages.genericError))
++	// The launcher's own label for the kind of error says nothing here.
++	return text.replace(/^(Error|Invalid input): /, '')
 +}
 +
 +// The players belong to the account they were listed for.
@@ -451,6 +462,7 @@ index 0000000..4aab3f9
 +
 +watch(address, () => {
 +	lookup++
++	lookingUp.value = false
 +	server.value = null
 +	serverError.value = ''
 +})
@@ -477,11 +489,15 @@ index 0000000..4aab3f9
 +	if (!value || server.value) return
 +
 +	const request = ++lookup
++	lookingUp.value = true
++	serverError.value = ''
 +	try {
 +		const found = await authlib_server(value)
 +		if (request === lookup) server.value = found
 +	} catch (e) {
 +		if (request === lookup) serverError.value = message(e)
++	} finally {
++		if (request === lookup) lookingUp.value = false
 +	}
 +}
 +
@@ -495,6 +511,13 @@ index 0000000..4aab3f9
 +	submitting.value = true
 +	error.value = ''
 +
++	// A server that cannot be found is the address's fault, not the password's.
++	await lookUpServer()
++	if (!server.value) {
++		submitting.value = false
++		return
++	}
++
 +	try {
 +		const result = await login_authlib(
 +			address.value.trim(),
@@ -536,6 +559,10 @@ index 0000000..4aab3f9
 +		id: 'app.authlib-account.server-hint',
 +		defaultMessage: "The address of the server's website.",
 +	},
++	lookingUp: {
++		id: 'app.authlib-account.looking-up',
++		defaultMessage: 'Looking for the server…',
++	},
 +	register: {
 +		id: 'app.authlib-account.register',
 +		defaultMessage: 'Create an account',
@@ -1540,10 +1567,10 @@ index 2514d8e..0245152 100644
      }
  }
 diff --git a/packages/app-lib/src/util/authlib_injector.rs b/packages/app-lib/src/util/authlib_injector.rs
-index dc099f9..709e6d0 100644
+index dc099f9..13591ef 100644
 --- a/packages/app-lib/src/util/authlib_injector.rs
 +++ b/packages/app-lib/src/util/authlib_injector.rs
-@@ -1,16 +1,133 @@
+@@ -1,16 +1,137 @@
 -//! Downloads and caches the authlib-injector Java agent.
 +//! The authlib-injector Java agent, and the servers it works with.
  //!
@@ -1630,16 +1657,20 @@ index dc099f9..709e6d0 100644
 +            ))
 +        })?;
 +
++    // What went wrong in detail is for the log: to the player, a mistyped
++    // address and a server that is down look the same.
 +    async fn get(url: &Url) -> crate::Result<Response> {
++        let host = url.host_str().unwrap_or_default();
 +        INSECURE_REQWEST_CLIENT
 +            .get(url.clone())
 +            .header(ACCEPT, "application/json")
++            .timeout(std::time::Duration::from_secs(10))
 +            .send()
 +            .await
 +            .map_err(|error| {
++                tracing::warn!("Could not reach {host}: {error:?}");
 +                crate::ErrorKind::OtherError(format!(
-+                    "Could not reach {}: {error}",
-+                    url.host_str().unwrap_or_default()
++                    "Could not reach {host}. Check the address and your connection."
 +                ))
 +                .as_error()
 +            })
@@ -1683,7 +1714,7 @@ index dc099f9..709e6d0 100644
  /// The agent's own distribution metadata.
  const LATEST_URL: &str = "https://authlib-injector.yushi.moe/artifact/latest.json";
  
-@@ -22,8 +139,7 @@ struct LatestArtifact {
+@@ -22,8 +143,7 @@ struct LatestArtifact {
  /// Returns the path to the agent jar, downloading it once if it is not cached.
  ///
  /// The cached copy is reused as it is. The agent is not tied to a game or
@@ -1693,7 +1724,7 @@ index dc099f9..709e6d0 100644
  pub async fn get_authlib_injector(
      directories: &DirectoryInfo,
  ) -> crate::Result<PathBuf> {
-@@ -35,7 +151,7 @@ pub async fn get_authlib_injector(
+@@ -35,7 +155,7 @@ pub async fn get_authlib_injector(
          return Ok(jar);
      }
  
diff --git a/patches/0022-Sign-in-to-custom-servers-in-the-browser.patch b/patches/0022-Sign-in-to-custom-servers-in-the-browser.patch
index 727ea32..d151b8e 100644
--- a/patches/0022-Sign-in-to-custom-servers-in-the-browser.patch
+++ b/patches/0022-Sign-in-to-custom-servers-in-the-browser.patch
@@ -29,11 +29,11 @@ session in the refresh token column as JSON behind a marker.
  apps/app/src/api/auth.rs                      |  49 +++
  packages/app-lib/src/api/minecraft_auth.rs    |  47 +-
  packages/app-lib/src/state/minecraft_auth.rs  | 402 +++++++++++++++++-
- packages/app-lib/src/util/authlib_injector.rs |  94 ++++
- 7 files changed, 782 insertions(+), 14 deletions(-)
+ packages/app-lib/src/util/authlib_injector.rs | 100 +++++
+ 7 files changed, 788 insertions(+), 14 deletions(-)
 
 diff --git a/apps/app-frontend/src/components/ui/AuthlibAccountModal.vue b/apps/app-frontend/src/components/ui/AuthlibAccountModal.vue
-index 4aab3f9..b67b2c7 100644
+index a2873fe..0e1f9a7 100644
 --- a/apps/app-frontend/src/components/ui/AuthlibAccountModal.vue
 +++ b/apps/app-frontend/src/components/ui/AuthlibAccountModal.vue
 @@ -1,5 +1,11 @@
@@ -49,7 +49,7 @@ index 4aab3f9..b67b2c7 100644
  		<div class="flex flex-col gap-4">
  			<p class="m-0 leading-tight text-secondary">
  				{{ formatMessage(messages.description) }}
-@@ -40,6 +46,52 @@
+@@ -47,6 +53,52 @@
  					</p>
  				</div>
  
@@ -102,7 +102,7 @@ index 4aab3f9..b67b2c7 100644
  				<div class="flex flex-col gap-2">
  					<label class="font-semibold text-contrast" for="authlib-account-username">
  						{{ formatMessage(messages.usernameLabel) }}
-@@ -126,6 +178,8 @@
+@@ -133,6 +185,8 @@
  <script setup lang="ts">
  import {
  	CheckIcon,
@@ -111,7 +111,7 @@ index 4aab3f9..b67b2c7 100644
  	GlobeIcon,
  	KeyIcon,
  	LogInIcon,
-@@ -138,13 +192,20 @@ import {
+@@ -145,13 +199,20 @@ import {
  	Chips,
  	commonMessages,
  	defineMessages,
@@ -133,7 +133,7 @@ index 4aab3f9..b67b2c7 100644
  
  type Server = {
  	api_root: string
-@@ -152,8 +213,16 @@ type Server = {
+@@ -159,8 +220,16 @@ type Server = {
  	implementation?: string
  	homepage?: string
  	register?: string
@@ -150,10 +150,10 @@ index 4aab3f9..b67b2c7 100644
  
  const { formatMessage } = useVIntl()
  
-@@ -171,7 +240,15 @@ const profiles = ref<Profile[]>([])
- const profile = ref<Profile | null>(null)
+@@ -179,7 +248,15 @@ const profile = ref<Profile | null>(null)
  const error = ref('')
  const submitting = ref(false)
+ const lookingUp = ref(false)
 +const browser = ref<DeviceCode | null>(null)
 +const browserStarting = ref(false)
 +const browserError = ref('')
@@ -165,9 +165,9 @@ index 4aab3f9..b67b2c7 100644
 +let pollTimeout: ReturnType<typeof setTimeout> | undefined
  
  function message(e: unknown) {
- 	return typeof e === 'string' ? e : ((e as Error)?.message ?? formatMessage(messages.genericError))
-@@ -187,6 +264,8 @@ watch(address, () => {
- 	lookup++
+ 	const text =
+@@ -199,6 +276,8 @@ watch(address, () => {
+ 	lookingUp.value = false
  	server.value = null
  	serverError.value = ''
 +	stopBrowser()
@@ -175,7 +175,7 @@ index 4aab3f9..b67b2c7 100644
  })
  
  function show(event?: MouseEvent) {
-@@ -199,6 +278,8 @@ function show(event?: MouseEvent) {
+@@ -211,6 +290,8 @@ function show(event?: MouseEvent) {
  	profile.value = null
  	error.value = ''
  	submitting.value = false
@@ -184,7 +184,7 @@ index 4aab3f9..b67b2c7 100644
  	modal.value?.show(event)
  	void nextTick(() => {
  		document.getElementById('authlib-account-server')?.focus()
-@@ -219,6 +300,72 @@ async function lookUpServer() {
+@@ -235,6 +316,72 @@ async function lookUpServer() {
  	}
  }
  
@@ -257,7 +257,7 @@ index 4aab3f9..b67b2c7 100644
  async function submit() {
  	if (submitting.value) return
  
-@@ -282,6 +429,34 @@ const messages = defineMessages({
+@@ -309,6 +456,34 @@ const messages = defineMessages({
  		id: 'app.authlib-account.password-label',
  		defaultMessage: 'Password',
  	},
@@ -935,10 +935,10 @@ index b916a6d..e9fa853 100644
              return Ok(());
          }
 diff --git a/packages/app-lib/src/util/authlib_injector.rs b/packages/app-lib/src/util/authlib_injector.rs
-index 709e6d0..8788563 100644
+index 13591ef..487b0ae 100644
 --- a/packages/app-lib/src/util/authlib_injector.rs
 +++ b/packages/app-lib/src/util/authlib_injector.rs
-@@ -17,6 +17,90 @@ use crate::state::DirectoryInfo;
+@@ -17,6 +17,96 @@ use crate::state::DirectoryInfo;
  use crate::util::fetch::{INSECURE_REQWEST_CLIENT, REQWEST_CLIENT};
  use crate::util::io;
  
@@ -951,8 +951,11 @@ index 709e6d0..8788563 100644
 +const CONNECT_CLIENT_IDS: &[(&str, &str)] = &[];
 +
 +/// The scopes a Yggdrasil Connect sign-in for playing needs.
-+const CONNECT_SCOPES: [&str; 3] =
-+    ["openid", "Yggdrasil.PlayerProfiles.Select", "Yggdrasil.Server.Join"];
++const CONNECT_SCOPES: [&str; 3] = [
++    "openid",
++    "Yggdrasil.PlayerProfiles.Select",
++    "Yggdrasil.Server.Join",
++];
 +
 +/// How to sign in to a server with Yggdrasil Connect, OAuth's device flow on
 +/// the server's own page.
@@ -998,7 +1001,10 @@ index 709e6d0..8788563 100644
 +    .iter()
 +    .all(|endpoint| endpoint.starts_with("https://"));
 +    let supported = |scope: &str| {
-+        config.scopes_supported.iter().any(|supported| supported == scope)
++        config
++            .scopes_supported
++            .iter()
++            .any(|supported| supported == scope)
 +    };
 +    if !https || !CONNECT_SCOPES.iter().all(|scope| supported(scope)) {
 +        return None;
@@ -1029,7 +1035,7 @@ index 709e6d0..8788563 100644
  /// An authlib-injector server, as its own metadata describes it.
  #[derive(Serialize, Debug, Clone)]
  pub struct AuthlibServer {
-@@ -27,6 +111,8 @@ pub struct AuthlibServer {
+@@ -27,6 +117,8 @@ pub struct AuthlibServer {
      pub implementation: Option<String>,
      pub homepage: Option<String>,
      pub register: Option<String>,
@@ -1038,7 +1044,7 @@ index 709e6d0..8788563 100644
  }
  
  #[derive(Deserialize)]
-@@ -46,6 +132,8 @@ struct Meta {
+@@ -46,6 +138,8 @@ struct Meta {
      implementation_name: Option<String>,
      #[serde(default)]
      links: Links,
@@ -1047,7 +1053,7 @@ index 709e6d0..8788563 100644
  }
  
  #[derive(Deserialize, Default)]
-@@ -115,6 +203,11 @@ pub async fn resolve_server(address: &str) -> crate::Result<AuthlibServer> {
+@@ -119,6 +213,11 @@ pub async fn resolve_server(address: &str) -> crate::Result<AuthlibServer> {
          ))
      })?;
  
@@ -1059,7 +1065,7 @@ index 709e6d0..8788563 100644
      Ok(AuthlibServer {
          api_root: api_root.as_str().trim_end_matches('/').to_owned(),
          name: metadata
-@@ -125,6 +218,7 @@ pub async fn resolve_server(address: &str) -> crate::Result<AuthlibServer> {
+@@ -129,6 +228,7 @@ pub async fn resolve_server(address: &str) -> crate::Result<AuthlibServer> {
          implementation: metadata.meta.implementation_name,
          homepage: metadata.meta.links.homepage,
          register: metadata.meta.links.register,