Menu="NetworkServices"
Title="Syslog Server"
Icon="icon-eula"
Tag="file-text-o"
---
<?PHP
/* Copyright 2005-2023, Lime Technology
 * Copyright 2012-2023, 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.
 */
?>
<?
$syslog = (array)@parse_ini_file('/boot/config/rsyslog.cfg');

function plain($ip) {
  return str_replace(['[',']'],'',$ip);
}
// Get ports in use
$portsInUse = [];
exec("lsof -Pni|awk '/LISTEN/ && \$9!~/127.0.0.1/ && \$9!~/\\[::1\\]/{print \$9}'|sort -u", $output);

$ethX = 'eth0';
$addr = ipaddr($ethX);
$bind = _var($var,'BIND_MGT')=='yes';
$list = ['*',$addr];

foreach ($output as $line) {
  [$ip, $port] = my_explode(':', $line);
  if (!in_array($port,$portsInUse) && (!$bind || in_array(plain($ip),$list))) $portsInUse[] = $port;
}
?>
<script>
function localFolder(local,time) {
  if (local) $('#local_folder').show(time); else $('#local_folder').hide(time);
}
function logOptions(log,time) {
  if (log) $('#log_options').show(time); else $('#log_options').hide(time);
}

$(function(){
  localFolder(document.syslog.local_server.value);
  logOptions(document.syslog.log_rotation.value);
});
function validatePort(form) {
  var portsInUse = JSON.parse('<?=json_encode($portsInUse)?>');
  var currentPort = "<?=(_var($syslog,'local_server') && _var($syslog,'server_protocol')!='udp') ? _var($syslog,'server_port',514) : 514?>";
  var port = $(form).find('input[name="server_port"]');
  var remotePort = $(form).find('input[name="remote_port"]');
  var protocol = $(form).find('select[name="server_protocol"]').val();
  if ( !port.val() ) port.val("514");
  port.val(parseInt(port.val()));
  remotePort.val(parseInt(remotePort.val()));
  var newport = port.val();
  if (newport != currentPort && protocol != "udp" && $(form).find('select[name="local_server"]').val()) {
    if (portsInUse.includes(newport)) {
      swal({title:'_(Port already in use)_',text:sprintf('_(Port %s is already in use by other services)_',newport),type:'error',showCancelButton:false,confirmButtonText:"_(OK)_"});
      return;
    }
  }
  var list = [];
  if (newport < 1 || newport > 65535) {
    list.push("_(Local syslog port)_");
  }
  var remote = remotePort.val();
  if (!remote) remote = 514;
  if (remote < 1 || remote > 65535) {
    list.push("_(Remote syslog port)_");
  }
  if (list.length > 0) {
    swal({title:'_(Port out of range)_',text:sprintf('_(%s is out of range (minimum 1 maximum 65535))_',list.join(", ")),type:'error',showCancelButton:false,confirmButtonText:"_(OK)_"});
    return;
  }
  form.submit();
}

</script>

<form markdown="1" name="syslog" method="POST" action="/update.php" target="progressFrame">
<input type="hidden" name="#file" value="/boot/config/rsyslog.cfg">
<input type="hidden" name="#command" value="/webGui/scripts/rsyslog_config">

_(Local syslog server)_:
: <span class="span"><select name="local_server" onchange="localFolder(this.value,'slow')">
  <?=mk_option(_var($syslog,'local_server'), "", _("Disabled"))?>
  <?=mk_option(_var($syslog,'local_server'), "1", _("Enabled"))?>
  </select></span>
  <select name="server_protocol" class="narrow">
  <?=mk_option(_var($syslog,'server_protocol'), "udp", _("UDP"))?>
  <?=mk_option(_var($syslog,'server_protocol'), "tcp", _("TCP"))?>
  <?=mk_option(_var($syslog,'server_protocol'), "both", _("Both"))?>
  </select>
  <input type="text" name="server_port" class="trim" value="<?=_var($syslog,'server_port')?>" maxlength="5" placeholder="514">

:syslog_local_server_help:

<div markdown="1" id="local_folder" style="display:none">
_(Local syslog folder)_:
: <select name="server_folder">
  <?=mk_option(0,'','&lt;'._('custom').'&gt;','disabled')?>
  <?foreach ($shares as $share){echo mk_option(_var($syslog,'server_folder'), '/mnt/user/'.$share['name'], $share['name']);}?>
  </select>

:syslog_local_folder_help:

_(Local syslog rotation)_:
: <select name="log_rotation" onchange="logOptions(this.value,'slow')">
  <?=mk_option(_var($syslog,'log_rotation'), "", _("Disabled"))?>
  <?=mk_option(_var($syslog,'log_rotation'), "1", _("Enabled"))?>
  </select>

:syslog_local_rotation_help:

<div markdown="1" id="log_options" style="display:none">
_(Local syslog maximum file size)_:
: <select name="log_size">
  <?=mk_option(_var($syslog,'log_size'), '1M', '1 '._('MB'))?>
  <?=mk_option(_var($syslog,'log_size'), '2M', '2 '._('MB'))?>
  <?=mk_option(_var($syslog,'log_size'), '5M', '5 '._('MB'))?>
  <?=mk_option(_var($syslog,'log_size'), '10M', '10 '._('MB'))?>
  <?=mk_option(_var($syslog,'log_size'), '20M', '20 '._('MB'))?>
  <?=mk_option(_var($syslog,'log_size'), '50M', '50 '._('MB'))?>
  <?=mk_option(_var($syslog,'log_size'), '100M', '100 '._('MB'))?>
  <?=mk_option(_var($syslog,'log_size'), '200M', '200 '._('MB'))?>
  <?=mk_option(_var($syslog,'log_size'), '500M', '500 '._('MB'))?>
  </select>

:syslog_local_file_size_help:

_(Local syslog number of files)_:
: <select name="log_files">
  <?=mk_option(_var($syslog,'log_files'), '1', '1')?>
  <?=mk_option(_var($syslog,'log_files'), '2', '2')?>
  <?=mk_option(_var($syslog,'log_files'), '3', '3')?>
  <?=mk_option(_var($syslog,'log_files'), '4', '4')?>
  </select>

:syslog_local_file_number_help:

</div>
</div>

_(Remote syslog server)_:
: <span class="span"><input type="text" name="remote_server" class="narrow" value="<?=_var($syslog,'remote_server')?>" maxlength="23" placeholder="_(name or ip address)_"></span>
  <select name="remote_protocol" class="narrow" size="1">
  <?=mk_option(_var($syslog,'remote_protocol'), "udp", _("UDP"))?>
  <?=mk_option(_var($syslog,'remote_protocol'), "tcp", _("TCP"))?>
  </select>
  <input type="number" name="remote_port" class="trim" value="<?=_var($syslog,'remote_port')?>" maxlength="5" placeholder="514" pattern="([0-9]{1,5})">

:syslog_remote_server_help:

_(Mirror syslog to flash)_:
: <select name="syslog_flash" size="1">
  <?=mk_option(_var($syslog,'syslog_flash'), "", _("No"))?>
  <?=mk_option(_var($syslog,'syslog_flash'), "1", _("Yes"))?>
  </select>

:syslog_mirror_flash_help:

&nbsp;
: <input type="button" value="_(Apply)_" onclick='validatePort(this.form)' disabled><input type="button" value="_(Done)_" onclick="done()">
</form>