From d8990050a9613532c92b86ad86bfbc58a9c2e5c9 Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Sat, 16 Sep 2017 17:11:46 +0200
Subject: [PATCH] page: save document root for includes during shutdown

Current directory is unavailable in fatal error handler.
---
 page.inc.php | 7 +++----
 page.php     | 4 +++-
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/page.inc.php b/page.inc.php
index 654f37f..c0282ee 100644
--- a/page.inc.php
+++ b/page.inc.php
@@ -1,11 +1,11 @@
 <?php
 $body = ob_get_clean();
 
-include_once './head.inc.php';
+include_once DOCROOT.'head.inc.php';
 
 print "<header>\n";
 ob_start();
-include './menu.html';
+include DOCROOT.'menu.html';
 $nav = ob_get_clean();
 $nav = preg_replace_callback('{<a href="([^"]+)">(.*?)</a>}', function ($m) {
 	$request = $_SERVER['REQUEST_URI'];
@@ -24,10 +24,9 @@ print "</header>\n\n";
 
 print $body;
 
-$footinc = realpath('footer.html'); # cwd lost during shutdown
 register_shutdown_function(function () {
 	print '<footer>';
-	@include $GLOBALS['footinc'];
+	@include DOCROOT.'footer.html';
 	print "</footer>\n";
 
 	global $User;
diff --git a/page.php b/page.php
index dc7f012..02886a7 100644
--- a/page.php
+++ b/page.php
@@ -16,12 +16,14 @@ function getoutput($blocks = [])
 
 # custom error handling
 
+define('DOCROOT', getcwd().'/');
+
 function fail($error)
 {
 	http_response_code(500);
 	include_once 'page.inc.php';
 	ob_start();
-	require_once './500.html';
+	require_once DOCROOT.'500.html';
 	print getoutput(['debug' => $error]);
 }
 
-- 
2.30.0