From d0523f0abd9ad408949d54ccc7eb9fec92f18654 Mon Sep 17 00:00:00 2001
From: 7w1 <noreply@sl.sable.moe>
Date: Mon, 23 Mar 2026 13:19:02 -0500
Subject: [PATCH] add login failure error messages

---
 .changeset/add-detailed-login-info.md          | 5 +++++
 src/app/pages/auth/login/PasswordLoginForm.tsx | 2 +-
 src/app/pages/auth/login/TokenLogin.tsx        | 2 +-
 src/app/pages/auth/login/loginUtil.ts          | 1 +
 4 files changed, 8 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/add-detailed-login-info.md

diff --git a/.changeset/add-detailed-login-info.md b/.changeset/add-detailed-login-info.md
new file mode 100644
index 000000000..b9c0ae281
--- /dev/null
+++ b/.changeset/add-detailed-login-info.md
@@ -0,0 +1,5 @@
+---
+default: patch
+---
+
+Added error messages provided by homeserver to unknown login errors.
diff --git a/src/app/pages/auth/login/PasswordLoginForm.tsx b/src/app/pages/auth/login/PasswordLoginForm.tsx
index 26350ac74..ba888bda5 100644
--- a/src/app/pages/auth/login/PasswordLoginForm.tsx
+++ b/src/app/pages/auth/login/PasswordLoginForm.tsx
@@ -258,7 +258,7 @@ export function PasswordLoginForm({ defaultUsername, defaultEmail }: PasswordLog
                 <FieldError message="Failed to login. Your login request has been rate-limited by server, Please try after some time." />
               )}
               {loginState.error.errcode === LoginError.Unknown && (
-                <FieldError message="Failed to login. Unknown reason." />
+                <FieldError message={`Failed to login: ${loginState.error.data.error}`} />
               )}
             </>
           )}
diff --git a/src/app/pages/auth/login/TokenLogin.tsx b/src/app/pages/auth/login/TokenLogin.tsx
index 77c45853b..7acf3e9b8 100644
--- a/src/app/pages/auth/login/TokenLogin.tsx
+++ b/src/app/pages/auth/login/TokenLogin.tsx
@@ -81,7 +81,7 @@ export function TokenLogin({ token }: TokenLoginProps) {
             <LoginTokenError message="Failed to login. Your login request has been rate-limited by server, Please try after some time." />
           )}
           {loginState.error.errcode === LoginError.Unknown && (
-            <LoginTokenError message="Failed to login. Unknown reason." />
+            <LoginTokenError message={`Failed to login: ${loginState.error.data.error}`} />
           )}
         </>
       )}
diff --git a/src/app/pages/auth/login/loginUtil.ts b/src/app/pages/auth/login/loginUtil.ts
index f14641746..81371a614 100644
--- a/src/app/pages/auth/login/loginUtil.ts
+++ b/src/app/pages/auth/login/loginUtil.ts
@@ -121,6 +121,7 @@ export const login = async (
           httpStatus: err.httpStatus,
         });
         throw new MatrixError({
+          error: err.message,
           errcode: LoginError.Unknown,
         });
       }