Unraid.net.plg

<?xml version='1.0' standalone='yes'?>

<!DOCTYPE PLUGIN [
<!ENTITY name      "Unraid.net">
<!ENTITY launch    "Settings/ManagementAccess">
<!ENTITY author    "limetech">
<!ENTITY version   "2020.04.17">
<!ENTITY pluginURL "https://raw.githubusercontent.com/limetech/&name;/master/&name;.plg">
<!ENTITY graphql-api "https://s3.amazonaws.com/dnld.lime-technology.com/unraid-api/unraid-graphql-api-v2.3.3.tgz">
<!ENTITY plugins     "https://s3.amazonaws.com/dnld.lime-technology.com/unraid-api/unraid-plugins-v1.1.5.tgz">
]>

<PLUGIN name="&name;" author="&author;" version="&version;" pluginURL="&pluginURL;" launch="&launch;" support="https://forums.unraid.net" min="6.8.0-rc0w">

<CHANGES>
##&name;

###&version;
- initial release
</CHANGES>

<!-- check for plugin update -->
<FILE Run="/bin/bash" Method="install remove">
<INLINE>
if [ -e /etc/rc.d/rc.unraid-api ]; then
  /etc/rc.d/rc.unraid-api stop
  rm -f /etc/rc.d/rc.unraid-api
  rm -f /usr/local/emhttp/plugins/dynamix/Unraid.net.page
  rm -f /usr/local/emhttp/plugins/dynamix/include/UpdateFlashBackup.php
  rm -rf /boot/config/plugins/Unraid.net
  mv -f /usr/local/emhttp/plugins/dynamix/include/UpdateDNS.php- /usr/local/emhttp/plugins/dynamix/include/UpdateDNS.php
fi
</INLINE>
</FILE>

<!-- unraid-api -->
<FILE Name="/boot/config/plugins/Unraid.net/unraid-graphql-api.tgz">
<URL>&graphql-api;</URL>
</FILE>
<!-- plugins -->
<FILE Name="/boot/config/plugins/Unraid.net/unraid-plugins.tgz">
<URL>&plugins;</URL>
</FILE>

<FILE Name="/etc/rc.d/rc.unraid-api" Mode="0755">
<INLINE>
<![CDATA[
#!/bin/sh
# start/stop unraid-api - development version
node_apps=(graphql-api plugins)
start() {
  mkdir /usr/local/node
  for i in ${node_apps[@]}; do
    tar -C /usr/local/node -xf /boot/config/plugins/Unraid.net/unraid-${i}.tgz
    rm -rf /usr/local/node/${i}
    mv /usr/local/node/package /usr/local/node/${i}
  done
  for i in ${node_apps[@]}; do
    if [ -f /usr/local/node/${i}/ecosystem.config.js ]; then
      (cd /usr/local/node/${i}/ && PM2_HOME=/root/.pm2 /usr/lib/node_modules/pm2/bin/pm2 start ./ecosystem.config.js --silent --env production)
    fi
  done
}
stop() {
  (PM2_HOME=/root/.pm2 /usr/lib/node_modules/pm2/bin/pm2 kill)
  rm -rf /var/run/graphql-api.sock
  for i in ${node_apps[@]}; do
    rm -rf /usr/local/node/${i}
  done
}
case "$1" in
'start')
  start
  ;;
'stop')
  stop
  ;;
*)
  echo "usage $0 start|stop"
esac
]]>
</INLINE>
</FILE>

<!-- README FILE -->
<FILE Name="/usr/local/emhttp/plugins/&name;/README.md">
<INLINE>
**Unraid.net**

Unraid.net provides access to a set web-based services:

* Server status such as online/offline, storage used/available, etc.
* Links for local and remote access to your server webGUI.
* Backup and Restore of your USB Flash boot device.
* much more to come

A server is registered using your Unraid Community Forum credentials.  Registered servers appear under the My Servers forum sub-menu.

This is work in progress. Use this for testing purposes only!
</INLINE>
</FILE>

<FILE Name="/usr/local/emhttp/plugins/dynamix/Unraid.net.page">
<INLINE>
<![CDATA[
Menu="ManagementAccess"
Title="Unraid.net"
Icon="ident.png"
Tag="globe"
---
<?PHP
/* Copyright 2005-2018, Lime Technology
 * Copyright 2012-2018, 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.
 */
?>
<?
// more:
// - if someone deletes the dynamic.cfg or directly edits [remote] section therein, it may be possible
// that server will appear 'unregistered' in webgui but not on My Servers.
// - appears someone could register, enable remote access, then unregister, replace the ssl cert, and
// now can remotely access using url that matches their cert. This is probably a bug here, but we might
// want to rework this somewhat to explicitly enable this 'feature' (remote access using user-provided cert).

$keyfile = @file_get_contents($var['regFILE']);
if ($keyfile !== false)
  $keyfile = @base64_encode($keyfile);

if (empty($remote)) {
    $remote = [
        "apikey" => "",
        "wanaccess" => "no",
        "wanport" => "443"
    ];
}
if (empty($remote['wanport'])) {
    $remote['wanport'] = 443;
}

$hasCert = file_exists('/boot/config/ssl/certs/certificate_bundle.pem');
$isRegistered = !empty($remote['apikey']);
$boolWebUIAuth = $isRegistered || file_exists('/etc/nginx/htpasswd');

$isActivated = false;
$isUptodate = false;
if ($isRegistered) {
  exec("/usr/bin/php -f $docroot/webGui/include/UpdateFlashBackup.php status", $output, $retval);
  $isActivated = ($retval == 0);
  if ($isActivated) $isUptodate = empty($output);
}
?>
<script>
function registerServer(button) {
    var oldlabel = $.trim($(button).text());

    var failure = function(data) {
        var status = data.status;
        var obj = data.responseJSON;
        var msg = "Sorry, an error ("+status+") occurred registering this server. " +
                  "The error is: "+obj.error+".";
        $(button).prop("disabled", false).html(oldlabel);
        swal('Oops',msg,'error');
    };

    var success = function(data) {
        if (data.apikey) {
            $.post('/webGui/include/Dispatcher.php',{
                "#cfg": "/boot/config/plugins/dynamix/dynamix.cfg",
                "remote_apikey": data.apikey,
                "remote_wanaccess": $('#wanaccess').val(),
                "remote_wanport": $('#wanport').val()
            });
            $(button).prop("disabled", false).html(oldlabel);
<?if(!$isRegistered):?>
            swal({title:"",text:"Your server has been registered",type:"success",allowEscapeKey:false},function(){button.form.submit();});
<?else:?>
            button.form.submit();
<?endif?>
        } else {
            failure({"status": 403, "responseJSON": {"error": "Unable to register this Unraid Server"}});
        }
    };

    $(button).prop("disabled", true).html("<i class=\"fa fa-spinner fa-spin\" aria-hidden=\"true\"></i> "+oldlabel+"ing");
    $.post("/webGui/include/UpdateDNS.php",{username:$('#ips_username').val(),password:$('#ips_password').val(),externalport:$('#wanport').val(),remoteaccess:$('#wanaccess').val()},success).fail(failure);
}

function unregisterServer(button) {
    var oldlabel = $.trim($(button).text());

    var failure = function(data) {
        var status = data.status;
        var obj = data.responseJSON;
        var msg = "Sorry, an error ("+status+") occurred unregistering this server. " +
                  "The error is: "+obj.error+".";
        $(button).prop("disabled", false).html(oldlabel);
        swal('Oops',msg,'error');
    };

    var success = function(data) {
        $.post('/webGui/include/Dispatcher.php',{
            "#cfg": "/boot/config/plugins/dynamix/dynamix.cfg",
            "remote_apikey": "",
            "remote_wanaccess": $('#wanaccess').val(),
            "remote_wanport": $('#wanport').val()
        });
        $(button).prop("disabled", false).html(oldlabel);
        swal({title:"",text:"Your server has been unregistered",type:"success",allowEscapeKey:false},function(){button.form.submit();});
    };

    swal({title:"Remove Registration",text:"Are you sure you want to unregister your server?",type:'warning',confirmButtonText:'Unregister',showCancelButton:true},function(){
        $(button).prop("disabled", true).html("<i class=\"fa fa-spinner fa-spin\" aria-hidden=\"true\"></i> "+oldlabel+"ing");
        $.post("https://keys.lime-technology.com/account/server/unregister",{keyfile:"<?=$keyfile?>"},success).fail(failure);
    });
}

function dnsCheckServer(button) {
    var oldlabel = $.trim($(button).text());

    var failure = function(data) {
        var status = data.status;
        var obj = data.responseJSON;
        var msg = "Sorry, an error ("+status+") occurred checking this server. " +
                  "The error is: "+obj.error+".";
        $(button).prop("disabled", false).html(oldlabel);
        swal('Oops',msg,'error');
    };

    var success = function(data) {
        $(button).prop("disabled", false).html(oldlabel);
        if (data.status) {
            swal("","Your Unraid Server is reachable from the internet","success");
        } else {
            swal("Oops","This Unraid Server was unreachable from the outside","error");
        }
    };

    $(button).prop("disabled", true).html("<i class=\"fa fa-spinner fa-spin\" aria-hidden=\"true\"></i> "+oldlabel+"ing");
    $.post("https://keys.lime-technology.com/account/server/checkdns",{externalport:$('#wanport').val(),keyfile:"<?=$keyfile?>"},success).fail(failure);
}

function changeRemoteAccess(dropdown) {
    if ($(dropdown).val() == 'yes') {
        $("#wanpanel").slideDown('fast');
    } else {
        $("#wanpanel").slideUp('fast');
    }
}

function enableFlashBackup(button) {
    var oldlabel = $.trim($(button).text());

    var failure = function(data) {
        var status = data.status;
        var obj = data.responseJSON;
        var msg = "Sorry, an error ("+status+") occurred enabling Flash backup. " +
                  "The error is: "+obj.error+".";
        $(button).prop("disabled", false).html(oldlabel);
        swal({title:"",text:msg,type:"error",allowEscapeKey:false},function(){button.form.submit();});
    };

    var success = function(data) {
        $(button).prop("disabled", false).html(oldlabel);
        button.form.submit();
    };

    if (oldlabel == 'Activate') {
        $(button).prop("disabled", true).html("<i class=\"fa fa-spinner fa-spin\" aria-hidden=\"true\"></i> Activating");
        $.post("/webGui/include/UpdateFlashBackup.php",{command:"activate"},success).fail(failure);
    }
    if (oldlabel == 'Deactivate') {
        $(button).prop("disabled", true).html("<i class=\"fa fa-spinner fa-spin\" aria-hidden=\"true\"></i> Deactivating");
        $.post("/webGui/include/UpdateFlashBackup.php",{command:"deactivate"},success).fail(failure);
    }
    if (oldlabel == 'Update') {
        $(button).prop("disabled", true).html("<i class=\"fa fa-spinner fa-spin\" aria-hidden=\"true\"></i> Updating");
        $.post("/webGui/include/UpdateFlashBackup.php",{command:"update"},success).fail(failure);
    }
    if (oldlabel == 'Reinitialize') {
        $(button).prop("disabled", true).html("<i class=\"fa fa-spinner fa-spin\" aria-hidden=\"true\"></i> Reinitializing");
        $.post("/webGui/include/UpdateFlashBackup.php",{command:"reinit"},success).fail(failure);
    }
    if (oldlabel == 'Deactivate') {
        $(button).prop("disabled", true).html("<i class=\"fa fa-spinner fa-spin\" aria-hidden=\"true\"></i> Deactivating");
        $.post("/webGui/include/UpdateFlashBackup.php",{command:"deactivate"},success).fail(failure);
    }
    if (oldlabel == 'Changes') {
	openBox("/webGui/include/gitstatus.php", "Changes", 600,600, false);
    }
}
</script>
<form markdown="1" name="UnraidNetSettings" method="POST" action="/update.htm" target="progressFrame">
<?if(!$isRegistered):?>
Unraid.net Status:
: <span class='orange p0'>Unregistered</span>

Unraid.net Username:
: <input type="text" id="ips_username" value="">

Unraid.net Password:
: <input type="password" id="ips_password" value="">

<?else:?>
Unraid.net Status:
: <span class='green p0'>Registered</span>

<?endif?>
<?if($hasCert):?>
Allow Remote Access:
: <select id="wanaccess" size="1" class="narrow" onchange="changeRemoteAccess(this)">
  <?=mk_option($remote['wanaccess'], "no", "No")?>
  <?=mk_option($remote['wanaccess'], "yes", "Yes")?>
  </select>

<div markdown="1" id="wanpanel" style="display:<?=($remote['wanaccess']=='yes'?'block':'none')?>">
WAN Port:
: <?if(!$boolWebUIAuth):?><input type="hidden" id="wanport" value="0"><span><i class="fa fa-warning icon warning"></i> Disabled until your root user account is password-protected</span><?else:?><input type="number" id="wanport" class="trim" min="0" max="65535" value="<?=htmlspecialchars($remote['wanport'])?>"> <button type="button" onclick="dnsCheckServer(this)" style="margin-top: 0">Check</button><?endif?>

> WAN Port is the external TCP port number setup on your router to NAT/Port Forward traffic from the internet to this
> Unraid server SSL port for secure web traffic.
</div>
<?else:?>
<input type="hidden" id="wanaccess" value="no">
<input type="hidden" id="wanport" value="0">
<?endif?>
&nbsp;
: <button type="button" onclick="registerServer(this)"><?=$isRegistered?'Apply':'Register'?></button><?if($isRegistered):?><button type="button" onclick="unregisterServer(this)">Unregister</button><?endif?>

</form>
<?if($isRegistered):?>
<form markdown="1" name="FlashBackup" method="POST" action="/update.htm" target="progressFrame">
<?if(!$isActivated):?>
Flash backup:
: <span class='orange p0'>Not activated</span>

&nbsp;
: <button type="button" onclick="enableFlashBackup(this)">Activate</button>

> Click Activate to set up a local git repo for your local USB Flash boot device and connect to a dedicated remote on unraid.net tied tothis server.

<?else:?>
Flash backup:
: <span class='green p0'>Activated:</span> <?if(!$isUptodate):?><span class='orange p0'>Not up-to-date</span><?else:?><span class='green p0'>Up-to-date</span><?endif?>

<?if(!$isUptodate):?>
&nbsp;
: <button type="button" onclick="enableFlashBackup(this)">Update</button> <button type="button" onclick="enableFlashBackup(this)">Changes</button>

> The Not Up-to-date status indicates there are local files which are changed vs. the remote on unraid.net.

> Click Update to push changes to the remote.

> Click Changes to see what has changed.

<?else:?>
&nbsp;
: <button type="button" disabled>Update</button>

> The Up-to-date status indicates your local configuration matches that stored on the unraid.net remote.

<?endif?>
&nbsp;
: <button type="button" onclick="enableFlashBackup(this)">Deactivate</button> <button type="button" onclick="enableFlashBackup(this)">Reinitialize</button>

> Click Deactivate to pause communication with your remote on unraid.net.

> Click Reinitialize to erase all change history in both local and unraid.net remote.

<?endif?>
</form>
<?endif?>
]]>
</INLINE>
</FILE>

<!-- Preserve in case plugin is removed -->
<FILE Run="/bin/bash" Method="install">
<INLINE>
mv -f /usr/local/emhttp/plugins/dynamix/include/UpdateDNS.php /usr/local/emhttp/plugins/dynamix/include/UpdateDNS.php-
</INLINE>
</FILE>
<FILE Name="/usr/local/emhttp/plugins/dynamix/include/UpdateDNS.php">
<INLINE>
<![CDATA[
<?PHP
/* Copyright 2005-2018, Lime Technology
 * Copyright 2012-2018, 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.
 */
?>
<?
$cli = php_sapi_name()=='cli';

function response_complete($httpcode, $result, $cli_success_msg='') {
  global $cli;
  if ($cli) {
    $json = @json_decode($result,true);
    if (!empty($json['error'])) {
      echo 'Error: '.$json['error'].PHP_EOL;
      exit(1);
    }
    exit($cli_success_msg.PHP_EOL);
  }
  header('Content-Type: application/json');
  http_response_code($httpcode);
  exit((string)$result);
}

// remoteaccess, externalport, (if registering) username, password
extract(parse_ini_file('/boot/config/plugins/dynamix/dynamix.cfg',true));
if (empty($remote)) {
  $remote = [
    "apikey" => "",
    "wanaccess" => "no",
    "wanport" => "443"
  ];
}
if (empty($remote['wanport'])) {
  $remote['wanport'] = 443;
}
if ($cli) {
  $remoteaccess = $remote['wanaccess'];
  $externalport = $remote['wanport'];
  $username = '';
  $password = '';
} else {
  $remoteaccess = $_POST['remoteaccess'];
  $externalport = $_POST['externalport'];
  $username = $_POST['username'];
  $password = $_POST['password'];
}
$isRegistered = !empty($remote['apikey']);

// protocol, hostname, internalport
list($protocol, $hostname, $internalport) = explode(":", rtrim(file_get_contents("/var/run/nginx.origin")));
$hostname = substr($hostname, 2);

if (!$isRegistered && empty($username) && !preg_match('/.*\.unraid\.net$/', $hostname)) {
  response_complete(406, '{"error":"Nothing to do"}');
}

// keyfile
$var = parse_ini_file('/var/local/emhttp/var.ini');
$keyfile = @file_get_contents($var['regFILE']);
if ($keyfile === false) {
  response_complete(406, '{"error":"Registration key required"}');
}
$keyfile = @base64_encode($keyfile);

// internalip
extract(parse_ini_file('/var/local/emhttp/network.ini',true));
$internalip = $eth0['IPADDR:0'];

$ch = curl_init('https://keys.lime-technology.com/account/server/register');
curl_setopt($ch, CURLOPT_POST, 1);

if (!$isRegistered && empty($username)) {
  curl_setopt($ch, CURLOPT_POSTFIELDS, [
    'internalip' => $internalip,
    'keyfile' => $keyfile
  ]);
} else {
  // servername, servercomment
  $servername = $var['NAME'];
  $servercomment = $var['COMMENT'];
  if (empty($username)) {
    curl_setopt($ch, CURLOPT_POSTFIELDS, [
      'servername' => $servername,
      'servercomment' => $servercomment,
      'protocol' => $protocol,
      'hostname' => $hostname,
      'internalport' => $internalport,
      'internalip' => $internalip,
      'remoteaccess' => $remoteaccess,
      'externalport' => $externalport,
      'keyfile' => $keyfile
    ]);
  } else {
    curl_setopt($ch, CURLOPT_POSTFIELDS, [
      'servername' => $servername,
      'servercomment' => $servercomment,
      'protocol' => $protocol,
      'hostname' => $hostname,
      'internalport' => $internalport,
      'internalip' => $internalip,
      'remoteaccess' => $remoteaccess,
      'externalport' => $externalport,
      'username' => $username,
      'password' => $password,
      'keyfile' => $keyfile
    ]);
  }
}

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$error = curl_error($ch);
curl_close($ch);

if ($result === false) {
  response_complete(500, '{"error":"'.$error.'"}');
}

response_complete($httpcode, $result, 'success');
?>
]]>
</INLINE>
</FILE>

<FILE Name="/usr/local/emhttp/plugins/dynamix/include/UpdateFlashBackup.php">
<INLINE>
<![CDATA[
<?PHP
/* Copyright 2005-2018, Lime Technology
 * Copyright 2012-2018, 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.
 */
?>
<?
$cli = php_sapi_name()=='cli';

function response_complete($httpcode, $result, $cli_success_msg='') {
  global $cli;
  if ($cli) {
    $json = @json_decode($result,true);
    if (!empty($json['error'])) {
      echo 'Error: '.$json['error'].PHP_EOL;
      exit(1);
    }
    if (!empty($cli_success_msg)) $cli_success_msg .= PHP_EOL;
    exit($cli_success_msg);
  }
  header('Content-Type: application/json');
  http_response_code($httpcode);
  exit((string)$result);
}

// command
//  init (default)
//  activate
//  status
//  update
//  reinit
//  deactivate
if ($cli) {
  if ($argc > 1) $command = $argv[1];
} else {
  $command = $_POST['command'];
}
if (empty($command)) $command='init';

// keyfile
$var = parse_ini_file("/var/local/emhttp/var.ini");
$keyfile = @file_get_contents($var['regFILE']);
if ($keyfile === false) {
  response_complete(406, '{"error":"Registration key required"}');
}
$keyfile = @base64_encode($keyfile);

// check if activated
if ($command != 'activate') {
  exec('git -C /boot config --get remote.origin.url', $config_output, $return_var);
  if (($return_var != 0) || (strpos($config_output[0],'backup.unraid.net') === false)) {
    response_complete(406, '{"error":"Not activated"}');
  }                                              
}                                              

// if deactivate command, just remove our origin
if ($command == 'deactivate') {
  exec('git --git-dir /boot/.git remote remove origin &>/dev/null');
  response_complete(200, '{}');
}

// build a list of sha256 hashes of the bzfiles
$bzfilehashes = [];
$allbzfiles = ['bzimage','bzfirmware','bzmodules','bzroot','bzroot-gui'];
foreach ($allbzfiles as $bzfile) {
  $sha256 = trim(@file_get_contents("/boot/$bzfile.sha256"));
  if (strlen($sha256) != 64) {
    response_complete(406, '{"error":"Invalid or missing '.$bzfile.'.sha256 file"}');
  }
  $bzfilehashes[] = $sha256;
}

$ch = curl_init('https://keys.lime-technology.com/backup/flash/activate');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, [
  'keyfile' => $keyfile,
  'version' => $var['version'],
  'bzfiles' => implode(',', $bzfilehashes)
]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$error = curl_error($ch);
curl_close($ch);

if ($result === false) {
  response_complete(500, '{"error":"'.$error.'"}');
}

$json = json_decode($result, true);
if (empty($json) || empty($json['ssh_privkey'])) {
  response_complete(406, $result);
}

// save the public and private keys
if (!file_exists('/root/.ssh')) {
  mkdir('/root/.ssh', 0700);
}
file_put_contents('/root/.ssh/unraidbackup_id_ed25519', $json['ssh_privkey']);
chmod('/root/.ssh/unraidbackup_id_ed25519', 0600);
file_put_contents('/root/.ssh/unraidbackup_id_ed25519.pub', $json['ssh_pubkey']);
chmod('/root/.ssh/unraidbackup_id_ed25519.pub', 0644);

// add configuration to use our keys
if (!file_exists('/root/.ssh/config') || strpos(file_get_contents('/root/.ssh/config'),'Host backup.unraid.net') === false) {
  file_put_contents('/root/.ssh/config', 'Host backup.unraid.net
IdentityFile ~/.ssh/unraidbackup_id_ed25519
IdentitiesOnly yes
', FILE_APPEND);
  chmod('/root/.ssh/config', 0644);
}

// add our server as a known host
if (!file_exists('/root/.ssh/known_hosts') || strpos(file_get_contents('/root/.ssh/known_hosts'),'backup.unraid.net,54.70.72.154') === false) {
  file_put_contents('/root/.ssh/known_hosts', 'backup.unraid.net,54.70.72.154 ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBKrKXKQwPZTY25MoveIw7fZ3IoZvvffnItrx6q7nkNriDMr2WAsoxu0DrU2QrSLH5zFF1ibv4tChS1hOpiYObiI=', FILE_APPEND);
  chmod('/root/.ssh/known_hosts', 0644);
}

// blow away existing repo if reinit command
if ($command == 'reinit') {
  exec('rm -rf /boot/.git');
}

// ensure git repo is setup on the flash drive
if (!file_exists('/boot/.git/info/exclude')) {
  exec('git init /boot &>/dev/null');
}

// setup git ignore for files we dont need in the flash backup
if (strpos(file_get_contents('/boot/.git/info/exclude'),'Unraid') === false) {
  file_put_contents('/boot/.git/info/exclude', '# Unraid OS Flash Backup

# Blacklist everything
/*

# Whitelist selected root files
!*.sha256
!changes.txt
!license.txt

!EFI*/
EFI*/boot/*
!EFI*/boot/syslinux.cfg

!syslinux/
syslinux/*
!syslinux/syslinux.cfg
!syslinux/syslinux.cfg-

# Whitelist entire config directory
!config/
#  except for selected files
config/drift
config/plugins/unRAIDServer.plg
config/random-seed
config/shadow
config/smbpasswd
config/wireguard/privatekey
');
}

// ensure git user is configured
exec('git --git-dir /boot/.git config user.email \'gitbot@unraid.net\' &>/dev/null');
exec('git --git-dir /boot/.git config user.name \'gitbot\' &>/dev/null');

// ensure upstream git server is configured and in-sync
exec('git --git-dir /boot/.git remote add -f -t master -m master origin git@backup.unraid.net:~/flash.git &>/dev/null');
if ($command != 'reinit') {
  exec('git --git-dir /boot/.git reset origin/master &>/dev/null');
  exec('git --git-dir /boot/.git checkout -B master origin/master &>/dev/null');
}

// establish status
exec('git -C /boot status --porcelain', $status_output, $return_var);
if ($return_var != 0) {
  response_complete(406, '{"error":"'.${status_output[0]}.'"}');
}                                              

if ($command == 'status') {
  $data = implode("\n", $status_output);
  response_complete($httpcode, '{"data":"'.$data.'"}', $data);
}

if (($command == 'update') || ($command == 'reinit')) {
  // push changes upstream
  if (!empty($status_output)) {
    exec('git -C /boot add -A &>/dev/null');
    if ($command == 'reinit') {
      exec('git -C /boot commit -m \'Initial commit\' &>/dev/null');
      exec('git -C /boot push --force origin master &>/dev/null');
    } else {
      exec('git -C /boot commit -m \'Config change\' &>/dev/null');
      exec('git -C /boot push &>/dev/null');
    }                                              
  }                                              
}                                              

response_complete($httpcode, '{}');
?>
]]>
</INLINE>
</FILE>

<!-- gitty up -->
<FILE Run="/bin/bash" Method="install">
<INLINE>
/etc/rc.d/rc.unraid-api start
</INLINE>
</FILE>

</PLUGIN>