Added "USB backup" function

plugins/dynamix/FlashInfo.page

@@ -13,6 +13,34 @@ Title="Flash Device Settings"
  * all copies or substantial portions of the Software.
  */
 ?>
+<style>ul,li{margin:0;padding-top:0;padding-bottom:0;}</style>
+
+<script>
+function cleanUp(zip) {
+  if (document.hasFocus()) {
+    $('input[value="Creating USB backup..."]').val('USB backup').prop('disabled',false);
+    $('#pleaseWait').hide('slow');
+    $.post('/webGui/include/Download.php',{cmd:'unlink',file:zip});
+  } else {
+    setTimeout(function(){cleanUp(zip);},2000);
+  }
+}
+function backup() {
+  $('input[value="USB backup"]').val('Creating USB backup...').prop('disabled',true);
+  $('#pleaseWait').show('slow');
+  $.post('/webGui/include/Download.php',{cmd:'backup'},function(zip) {
+    if (zip) {
+      location = '/'+zip;
+      setTimeout(function(){cleanUp(zip);},4000);
+    } else {
+      $('input[value="Creating USB backup..."]').val('USB backup');
+      $('#pleaseWait').hide('slow');
+      swal('Creation error','Insufficient free disk space available','error');
+    }
+  });
+}
+</script>
+
 Flash Vendor:
 : <?=$var['flashVendor'];?>
 
@@ -35,4 +63,6 @@ Flash GUID:
 <?endif;?>
 
 &nbsp;
-: <input type="button" value="Done" onclick="done()">
+: <input type="button" value="USB backup" onclick="backup()"><input type="button" value="Done" onclick="done()">
+
+<br><div id="pleaseWait" style="display:none;font-weight:bold;color:red;text-align:center">Please wait... creating USB backup zip file (this may take several minutes)</div>

plugins/dynamix/include/Download.php

@@ -11,7 +11,7 @@
  */
 ?>
 <?
-$docroot = $docroot ?: @$_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
+$docroot = $docroot ?: $_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
 $file = $_POST['file'];
 switch ($_POST['cmd']) {
 case 'save':
@@ -36,5 +36,13 @@ case 'diag':
   exec("$docroot/webGui/scripts/diagnostics $anon ".escapeshellarg("$docroot/$file"));
   echo "/$file";
   break;
-}
+case 'unlink':
+  $disk = exec("ls -l '$docroot/$file'");
+  $disk = substr($disk,strpos($disk,'>')+2);
+  exec("rm -f '$docroot/$file' '$disk'");
+  break;
+case 'backup':
+  echo exec("$docroot/webGui/scripts/usb_backup");
+  break;
+}  
 ?>

plugins/dynamix/scripts/usb_backup

@@ -0,0 +1,43 @@
+#!/usr/bin/php -q
+<?PHP
+/* Copyright 2005-2017, Lime Technology
+ * Copyright 2012-2017, Bergware International.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ */
+?>
+<?
+$docroot = $docroot ?: $_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
+$var = file_exists('/var/local/emhttp/var.ini') ? parse_ini_file('/var/local/emhttp/var.ini') : [];
+$out = ['previous','syslinux'];
+
+$server = isset($var['NAME']) ? str_replace(' ','_',strtolower($var['NAME'])) : 'tower';
+$mydate = date('Ymd-Hi');
+$backup = "$server-usb-backup-$mydate.zip";
+
+list($used,$free) = explode(',',exec("df /boot|awk 'END{print $3,$4}'"));
+$usb = $free > $used;
+foreach (glob('/mnt/user/*',GLOB_ONLYDIR) as $share) {
+  $free = exec("df $share|awk 'END{print $4}'");
+  if ($free > $used) {$zip = $share; break;}
+}
+$zip = $zip ? "$zip/$backup" : ($usb ? "/boot/$backup" : "");
+if ($zip) {
+  chdir("/boot");
+  foreach (glob("*",GLOB_NOSORT+GLOB_ONLYDIR) as $folder) {
+    if (in_array($folder,$out)) continue;
+    exec("zip -qr ".escapeshellarg($zip)." ".escapeshellarg($folder));
+  }
+  foreach (glob("*",GLOB_NOSORT) as $file) {
+    if (is_dir($file)) continue;
+    exec("zip -q ".escapeshellarg($zip)." ".escapeshellarg($file));
+  }
+  symlink($zip,"$docroot/$backup");
+  echo $backup;
+}
+?>