From 339c4794028fa31e50d9eaadb5e7128bf3fbdca2 Mon Sep 17 00:00:00 2001
From: Matthias Pfefferle <pfefferle@users.noreply.github.com>
Date: Mon, 6 Jul 2026 13:39:07 +0200
Subject: [PATCH 1/3] Fix fatal error from undefined function __e()

The error path in the authenticate form template called __e(), which
does not exist in WordPress, causing a fatal error whenever the current
user could not be determined. Use esc_html_e() instead and close the
login page with login_footer() before exiting.

Fixes #313
---
 templates/indieauth-authenticate-form.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/templates/indieauth-authenticate-form.php b/templates/indieauth-authenticate-form.php
index e785b80..73f74b2 100644
--- a/templates/indieauth-authenticate-form.php
+++ b/templates/indieauth-authenticate-form.php
@@ -8,7 +8,8 @@
 );
 $user_website = esc_url( get_url_from_user( $current_user->ID ) );
 if ( ! $user_website ) {
-	__e( 'The application cannot sign you in as WordPress cannot determine the current user', 'indieauth' );
+	esc_html_e( 'The application cannot sign you in as WordPress cannot determine the current user', 'indieauth' );
+	login_footer();
 	exit;
 }
 

From 319603ee7db55c08adb8653ef00bc685c6ab49de Mon Sep 17 00:00:00 2001
From: Matthias Pfefferle <pfefferle@users.noreply.github.com>
Date: Mon, 6 Jul 2026 13:41:57 +0200
Subject: [PATCH 2/3] Fully qualify function calls in the error path

---
 templates/indieauth-authenticate-form.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/templates/indieauth-authenticate-form.php b/templates/indieauth-authenticate-form.php
index 73f74b2..f02e046 100644
--- a/templates/indieauth-authenticate-form.php
+++ b/templates/indieauth-authenticate-form.php
@@ -8,8 +8,8 @@
 );
 $user_website = esc_url( get_url_from_user( $current_user->ID ) );
 if ( ! $user_website ) {
-	esc_html_e( 'The application cannot sign you in as WordPress cannot determine the current user', 'indieauth' );
-	login_footer();
+	\esc_html_e( 'The application cannot sign you in as WordPress cannot determine the current user', 'indieauth' );
+	\login_footer();
 	exit;
 }
 

From 347aa8afca67d09968f9648d25b6dd653aa86c5b Mon Sep 17 00:00:00 2001
From: Dominik Schwind <dschwind@lostfocus.de>
Date: Tue, 7 Jul 2026 20:55:09 +0200
Subject: [PATCH 3/3] Call the function directly as the global variable is not
 set in this context

---
 templates/indieauth-authenticate-form.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/templates/indieauth-authenticate-form.php b/templates/indieauth-authenticate-form.php
index e785b80..304c8b4 100644
--- a/templates/indieauth-authenticate-form.php
+++ b/templates/indieauth-authenticate-form.php
@@ -6,7 +6,7 @@
 	'',
 	$login_errors
 );
-$user_website = esc_url( get_url_from_user( $current_user->ID ) );
+$user_website = esc_url( get_url_from_user( wp_get_current_user()?->ID ) );
 if ( ! $user_website ) {
 	__e( 'The application cannot sign you in as WordPress cannot determine the current user', 'indieauth' );
 	exit;