--- a/uiconfig.php	Tue May 26 15:25:58 2009 -0400
+++ b/uiconfig.php	Tue May 26 15:26:22 2009 -0400
@@ -55,7 +55,9 @@
   
   if ( $authed && isset($_POST['submit']) )
   {
+    $tried = true;
     $need_reboot = ( isset($_POST['public']) !== $GLOBALS['public'] ||
+                     isset($_POST['ipv6']) !== $GLOBALS['enable_ipv6'] ||
                      isset($_POST['allow_fork']) !== $GLOBALS['allow_fork']);
     
     // compile the new config file
@@ -63,17 +65,32 @@
     $allowcontrol = ( isset($_POST['allowcontrol']) ) ? 'true' : 'false';
     $allow_fork = ( isset($_POST['allow_fork']) ) ? 'true' : 'false';
     $use_auth = ( isset($_POST['use_auth']) ) ? 'true' : 'false';
+    $ipv6_settings = ( isset($_POST['ipv6']) ) ? '$GLOBALS[\'enable_ipv4\'] = false;
+$GLOBALS[\'enable_ipv6\'] = true;' : '$GLOBALS[\'enable_ipv4\'] = true;
+$GLOBALS[\'enable_ipv6\'] = false;';
+    $GLOBALS['enable_ipv6'] = isset($_POST['ipv6']);
     
     // for auth_data, we're going to merge the data from POST with the current auth_data array.
     $auth_data = $GLOBALS['auth_data'];
     $auth_changed = false;
-    foreach ( $auth_data as $user => $pass )
+    if ( isset($_POST['users']) )
     {
-      if ( !in_array($user, $_POST['users']) )
+      foreach ( $auth_data as $user => $pass )
       {
+        if ( !in_array($user, $_POST['users']) )
+        {
+          $auth_changed = true;
+          unset($auth_data[$user]);
+        }
+      }
+    }
+    else
+    {
+      if ( !empty($auth_data) )
+      {
+        $auth_data = array();
         $auth_changed = true;
-        unset($auth_data[$user]);
-      }
+      } 
     }
     if ( isset($_POST['users_add']) )
     {
@@ -85,7 +102,11 @@
     }
     $auth_data = var_export_string($auth_data);
     
-    $new_configpass = ( isset($_POST['configpass']) && is_string($_POST['newconfigpass']) && $_POST['newconfigpass'] != '____________________' ) ? sha1($_POST['newconfigpass']) : $GLOBALS['configpass'];
+    $new_configpass = ( isset($_POST['newconfigpass']) && is_string($_POST['newconfigpass']) && $_POST['newconfigpass'] != '____________________' ) ? sha1($_POST['newconfigpass']) : $GLOBALS['configpass'];
+    if ( isset($_POST['newconfigpass']) && $_POST['newconfigpass'] === true )
+      $new_configpass = '';
+    
+    $needpass = ( $new_configpass != '' );
     
     $config_file = <<<EOF
 <?php
@@ -120,6 +141,9 @@
 // password for site configuration
 \$GLOBALS['configpass'] = '$new_configpass';
 
+// IPv4 and IPv6
+$ipv6_settings
+
 EOF;
     $error = 'Couldn\'t write to the config file (./greyhound-config.php).';
     
@@ -136,15 +160,29 @@
       }
       else
       {
-        $rebootblurb = $need_reboot ? "\n<small>Please restart Greyhound using Amarok's script manager for public IP and multithreading options to take effect.</small>" : '';
+        $rebootblurb = $need_reboot ? "\n<small>Please restart Greyhound using Amarok's script manager for public IP, multithreading, and IPv6 options to take effect.</small>" : '';
       }
       $success = "Configuration changes successful.{$passblurb}{$rebootblurb}";
-      $httpd->threader->ipc_send(array('action' => 'reloadconfig', 'propagate' => true));
+      if ( $httpd->threader->is_child() )
+      {
+        $httpd->threader->ipc_send(array('action' => 'reloadconfig', 'propagate' => true));
+      }
+      else
+      {
+        grey_reload_config();
+      }
       
       if ( $need_reboot && REBOOT_SUPPORT )
       {
-        $addr = $GLOBALS['public'] ? '0.0.0.0' : '127.0.0.1';
-        $fork = $GLOBALS['allow_fork'];
+        if ( $GLOBALS['enable_ipv6'] )
+        {
+          $addr = isset($_POST['public']) ? '::' : '::1';
+        }
+        else
+        {
+          $addr = isset($_POST['public']) ? '0.0.0.0' : '127.0.0.1';
+        }
+        $fork = isset($_POST['allow_fork']);
         $httpd->reboot($addr, null, $fork);
       }
     }
@@ -167,10 +205,12 @@
   $smarty->assign('needpass', $needpass);
   $smarty->assign('use_auth', $use_auth);
   $smarty->assign('public', $GLOBALS['public']);
+  $smarty->assign('ipv6', $GLOBALS['enable_ipv6']);
   $smarty->assign('allowcontrol', $GLOBALS['allowcontrol']);
   $smarty->assign('allow_fork', $GLOBALS['allow_fork']);
   $smarty->assign('use_auth', $GLOBALS['use_auth']);
   $smarty->assign('users', $GLOBALS['auth_data']);
+  $smarty->assign('reboot_support', REBOOT_SUPPORT);
   $smarty->assign('error', $error);
   $smarty->display('config.tpl');
 }