From 6791bd7ad452fb7449ada07acb607f26c948b734 Mon Sep 17 00:00:00 2001
From: Davide Liessi <davide.liessi@gmail.com>
Date: Tue, 31 Mar 2020 00:10:54 +0200
Subject: [PATCH 1/2] test for apache_get_modules before using it

---
 admin/vfront.info.php | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/admin/vfront.info.php b/admin/vfront.info.php
index 919c727..9707ba5 100644
--- a/admin/vfront.info.php
+++ b/admin/vfront.info.php
@@ -295,11 +295,16 @@
 // IMPOSTAZIONI IMPORTANTI ---------------------------------------------------------------------------------------------------
 $OUT.="<h2 class=\"title-vfrontinfo\">"._("Apache Modules")."</h2>";
 
-$modules_apache=(array) @apache_get_modules();
-
-$flog.="ApacheLoadedModules: ".implode(",",$modules_apache)."\n";
+if(function_exists('apache_get_modules')){
+        $modules_apache=(array) @apache_get_modules();
+        $flog.="ApacheLoadedModules: ".implode(",",$modules_apache)."\n";
+        $apache_mod_rewrite=(in_array("mod_rewrite", $modules_apache)) ? "<span class=\"verde\">"._("YES")."</span>" : "<span class=\"rosso\">"._("NO")."</span>";
+}
+else{
+        $flog.="ApacheLoadedModules: apache_get_modules() not available\n";
+        $apache_mod_rewrite="<span class=\"rosso\">??? ("._('This information is not available, since it seems to be using PHP as CGI').")</span>";
+}
 
-$apache_mod_rewrite=(in_array("mod_rewrite", $modules_apache)) ? "<span class=\"verde\">"._("YES")."</span>" : "<span class=\"rosso\">"._("NO")."</span>";
 $OUT.="<span class=\"grigio\">"._("Mod_rewrite:")."</span> <strong>$apache_mod_rewrite</strong>\n";
 $OUT.="<div class=\"piccolo\">"._("VFront requires the use of mod_rewrite for different functions, such as generating reports")."</div><br />\n";
 

From 444a05997b1dcd53ae8bb2d898c984c98922840a Mon Sep 17 00:00:00 2001
From: Davide Liessi <davide.liessi@gmail.com>
Date: Tue, 31 Mar 2020 01:30:30 +0200
Subject: [PATCH 2/2] test for mod_rewrite even when PHP is run as CGI

---
 _install/index.php        | 10 +++++-----
 admin/vfront.info.php     | 10 +++++++++-
 inc/func.mod_rewrite.php  |  8 ++++++++
 inc/mod_rewrite/.htaccess |  4 ++++
 inc/mod_rewrite/test.php  |  2 ++
 5 files changed, 28 insertions(+), 6 deletions(-)
 create mode 100644 inc/func.mod_rewrite.php
 create mode 100644 inc/mod_rewrite/.htaccess
 create mode 100644 inc/mod_rewrite/test.php

diff --git a/_install/index.php b/_install/index.php
index 64ea67d..c67e48c 100644
--- a/_install/index.php
+++ b/_install/index.php
@@ -307,17 +307,17 @@ function step1(){
 
 		$php_modules = (array) @apache_get_modules();
 		$l_modrewrite=(in_array('mod_rewrite',$php_modules)) ? 1:0;
-		$class_alert['modrewrite']= ($l_modrewrite) ? 'install-ok' : 'install-alert';
-		$alert_rewrite_na='';
 	}
 	// caso CGI
 	else{
 
 		$php_modules= array();
-		$l_modrewrite='na';
-		$class_alert['modrewrite']= 'install-na';
-		$alert_rewrite_na=_('This information is not available, since it seems to be using PHP as CGI');
+		require_once("../inc/func.mod_rewrite.php");
+		$doc_root="http://".$_SERVER['HTTP_HOST'].str_replace("/_install/index.php",'',$_SERVER['PHP_SELF']);
+		$l_modrewrite=(check_mod_rewrite($doc_root)) ? 1:0;
 	}
+	$class_alert['modrewrite']= ($l_modrewrite) ? 'install-ok' : 'install-alert';
+	$alert_rewrite_na='';
 
 	$l_mysqli=(in_array('mysqli',$ext)) ? 1:0;
 	$l_mysql_old=(in_array('mysql',$ext)) ? 1:0;
diff --git a/admin/vfront.info.php b/admin/vfront.info.php
index 9707ba5..f376282 100644
--- a/admin/vfront.info.php
+++ b/admin/vfront.info.php
@@ -302,7 +302,15 @@
 }
 else{
         $flog.="ApacheLoadedModules: apache_get_modules() not available\n";
-        $apache_mod_rewrite="<span class=\"rosso\">??? ("._('This information is not available, since it seems to be using PHP as CGI').")</span>";
+        require_once("../inc/func.mod_rewrite.php");
+        if (check_mod_rewrite(FRONT_DOCROOT)) {
+                $flog.="mod_rewrite test succeeded\n";
+                $apache_mod_rewrite="<span class=\"verde\">"._("YES")."</span>";
+        }
+        else{
+                $flog.="mod_rewrite test failed\n";
+                $apache_mod_rewrite="<span class=\"rosso\">"._("NO")."</span>";
+        }
 }
 
 $OUT.="<span class=\"grigio\">"._("Mod_rewrite:")."</span> <strong>$apache_mod_rewrite</strong>\n";
diff --git a/inc/func.mod_rewrite.php b/inc/func.mod_rewrite.php
new file mode 100644
index 0000000..9afbd51
--- /dev/null
+++ b/inc/func.mod_rewrite.php
@@ -0,0 +1,8 @@
+<?php
+
+function check_mod_rewrite($root){
+        $test = file_get_contents($root.'/inc/mod_rewrite/test');
+        return $test == 'YES';
+}
+
+?>
diff --git a/inc/mod_rewrite/.htaccess b/inc/mod_rewrite/.htaccess
new file mode 100644
index 0000000..3805d14
--- /dev/null
+++ b/inc/mod_rewrite/.htaccess
@@ -0,0 +1,4 @@
+<IfModule rewrite_module>
+RewriteEngine On
+RewriteRule ^test$ test.php
+</IfModule>
diff --git a/inc/mod_rewrite/test.php b/inc/mod_rewrite/test.php
new file mode 100644
index 0000000..0de2a9d
--- /dev/null
+++ b/inc/mod_rewrite/test.php
@@ -0,0 +1,2 @@
+<?php
+print "YES";