From 216c253ad9db873221a343fe23c44c5edfa6477f Mon Sep 17 00:00:00 2001
From: Andrew Ruthven <andrew@etc.gen.nz>
Date: Sat, 20 Jan 2024 15:18:46 +1300
Subject: [PATCH] Set a sane timeout for fetching the current DAViCal version

Without this it takes 90 seconds to timeout.
---
 htdocs/setup.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/htdocs/setup.php b/htdocs/setup.php
index ff4f9ffe..39b6c7cf 100644
--- a/htdocs/setup.php
+++ b/htdocs/setup.php
@@ -267,9 +267,14 @@ function check_davical_version() {
   if ( ! ini_get('allow_url_fopen') )
     return new CheckResult( false, translate("Cannot determine upstream version, because PHP has set “<a href=\"https://secure.php.net/manual/en/filesystem.configuration.php#ini.allow-url-fopen\"><code>allow_url_fopen</code></a>” to “<code>FALSE</code>”."), 'dep_warning' );
   $url = 'https://www.davical.org/current_davical_version?v='.$c->version_string;
-  $version_file = @fopen($url, 'r');
+  $version_context = stream_context_create( array(
+    'http' => array(
+        'timeout' => 2.0
+    )
+  ));
+  $version_file = @fopen($url, 'r', false, $version_context);
   if ( ! $version_file ) return new CheckResult( false, translate("Could not retrieve") . " '$url'", 'dep_warning' );
-  $current_version = htmlentities( trim(fread( $version_file,12)) );
+  $current_version = htmlentities( trim(fread( $version_file, 12)) );
   fclose($version_file);
   $result = new CheckResult($c->version_string == $current_version);
   if ( ! $result->getOK() ) {