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<?php
///
// NextCloudPi Web Panel backend
//
// Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
// GPL licensed (see end of file) * Use at your own risk!
//
// More at https://ownyourbits.com/2017/02/13/nextcloud-ready-raspberry-pi-image/
///
include ('csrf.php');
session_start();
$modules_path = '/usr/local/etc/ncp-config.d/';
$l10nDir = "l10n";
ignore_user_abort( true );
require("L10N.php");
try {
$l = new L10N($_SERVER["HTTP_ACCEPT_LANGUAGE"], $l10nDir, $modules_path);
} catch (Exception $e) {
die(json_encode("<p class='error'>Error while loading localizations!</p>"));
}
if ( $_POST['action'] == "cfgreq" )
{
if ( !$_POST['ref'] ) exit( '{ "output": "Invalid request" }' );
//CSFR check
$token = isset($_POST['csrf_token']) ? $_POST['csrf_token'] : '';
if ( empty($token) || !validateCSRFToken($token) )
exit( '{ "output": "Unauthorized request. Try reloading the page" }' );
$path = '/usr/local/etc/ncp-config.d/';
$files = array_diff(scandir($path), array('.', '..'));
$fh = fopen( $path . $_POST['ref'] . '.sh' ,'r')
or exit( '{ "output": "' . $file . ' read error" }' );
echo '{ "token": "' . getCSRFToken() . '",'; // Get new token
echo ' "output": ';
$output = "<table>";
while ( $line = fgets($fh) )
{
// checkbox (yes/no) field
if ( preg_match('/^(\w+)_=(yes|no)$/', $line, $matches) )
{
$checked = "";
if ( $matches[2] == "yes" )
$checked = "checked";
$output .= "<tr>";
$output .= "<td><label for=\"$matches[1]\">". $l->__($matches[1], $_POST['ref']) ."</label></td>";
$output .= "<td><input type=\"checkbox\" id=\"$matches[1]\" name=\"$matches[1]\" value=\"$matches[2]\" $checked></td>";
$output .= "</tr>";
}
// drop down menu
else if(preg_match('/^(\w+)_=\[(([_\w]+,)*[_\w]+)\]$/', $line, $matches))
{
$options = explode(",", $matches[2]);
$output .= "<tr>";
$output .= "<td><label for=\"$matches[1]\">". $l->__($matches[1], $_POST['ref']) ."</label></td>";
$output .= "<td><select id=\"$matches[1]\" name=\"$matches[1]\">";
foreach($options as $option)
{
$output .= "<option value='". trim($option, "_") ."' ";
if( $option[0] == "_" && $option[count($option) - 1] == "_" )
{
$output .="selected='selected'";
}
$output .= ">". $l->__(trim($option, "_"), $_POST['ref']) ."</option>";
}
$output .= "</select></td></tr>";
}
// text field
else if ( preg_match('/^(\w+)_=(.*)$/', $line, $matches) )
{
$output .= "<tr>";
$output .= "<td><label for=\"$matches[1]\">". $l->__($matches[1], $_POST['ref']) ."</label></td>";
$output .= "<td><input type=\"text\" name=\"$matches[1]\" id=\"$matches[1]\" value=\"$matches[2]\" size=\"40\"></td>";
$output .= "</tr>";
}
}
$output .= "</table>";
fclose($fh);
echo json_encode( $output ) . ' }'; // close JSON
}
else if ( $_POST['action'] == "launch" && $_POST['config'] )
{
// sanity checks
if ( !$_POST['ref'] ) exit( '{ "output": "Invalid request" }' );
preg_match( '/^[a-z-]+$/' , $_POST['ref'] , $matches )
or exit( '{ "output": "Invalid input" , "token": "' . getCSRFToken() . '" }' );
// CSRF check
$token = isset($_POST['csrf_token']) ? $_POST['csrf_token'] : '';
if ( empty($token) || !validateCSRFToken($token) )
exit( '{ "output": "Unauthorized request. Try reloading the page" }' );
chdir('/usr/local/etc/ncp-config.d/');
$file = $_POST['ref'] . '.sh';
if ( $_POST['config'] != "{}" )
$params = json_decode( $_POST['config'], true )
or exit( '{ "output": "Invalid request" }' );
$code = file_get_contents( $file )
or exit( '{ "output": "' . $file . ' read error" }' );
if ( !empty( $params ) )
foreach( $params as $name => $value )
{
if( is_array($value))
{
$value = "[". join(",", $value) ."]";
}
preg_match( '/^[\[\]\w+-.,@_\/:]+$/' , $value , $matches )
or exit( '{ "output": "Invalid input" , "token": "' . getCSRFToken() . '" }' );
$code = preg_replace( '/\n' . $name . '_=.*' . PHP_EOL . '/' ,
PHP_EOL . $name . '_=' . $value . PHP_EOL ,
$code )
or exit();
}
file_put_contents($file, $code )
or exit( '{ "output": "' . $file . ' write error" }' );
echo '{ "token": "' . getCSRFToken() . '",'; // Get new token
echo ' "ref": "' . $_POST['ref'] . '",';
echo ' "output": "" , ';
echo ' "ret": ';
exec( 'bash -c "sudo /home/www/ncp-launcher.sh ' . $file . '"' , $output , $ret );
echo '"' . $ret . '" }';
}
else
{
// CSRF check
$token = isset($_POST['csrf_token']) ? $_POST['csrf_token'] : '';
if ( empty($token) || !validateCSRFToken($token) )
exit( '{ "output": "Unauthorized request. Try reloading the page" }' );
if ( $_POST['action'] == "poweroff" )
{
shell_exec( 'bash -c "( sleep 2 && sudo halt ) 2>/dev/null >/dev/null &"' );
}
else if ( $_POST['action'] == "reboot" )
{
shell_exec('bash -c "( sleep 2 && sudo reboot ) 2>/dev/null >/dev/null &"');
}
else if ( $_POST['action'] == "info" )
{
exec( 'bash /usr/local/bin/ncp-diag', $output, $ret );
// info table
$table = '<table class="dashtable">';
foreach( $output as $line )
{
$table .= "<tr>";
$fields = explode( "|", $line );
$table .= "<td>$fields[0]</td>";
$class = 'val-field';
if ( strpos( $fields[1], "up" ) !== false
|| strpos( $fields[1], "ok" ) !== false
|| strpos( $fields[1], "open" ) !== false )
$class = 'ok-field';
if ( strpos( $fields[1], "down" ) !== false
|| strpos( $fields[1], "error" ) !== false )
$class = 'error-field';
$table .= "<td class=\"$class\">$fields[1]</td>";
$table .= "</tr>";
}
$table .= "</table>";
// suggestions
$suggestions = "";
if ( $ret == 0 )
{
exec( "bash /usr/local/bin/ncp-suggestions \"" . implode( "\n", $output ) . '"', $out, $ret );
foreach( $out as $line )
if ( $line != "" )
$suggestions .= "<p class=\"val-field\">‣ $line</p>";
}
// return JSON
echo '{ "token": "' . getCSRFToken() . '",'; // Get new token
echo ' "table": ' . json_encode( $table ) . ' , ';
echo ' "suggestions": ' . json_encode( $suggestions ) . ' , ';
echo ' "ret": "' . $ret . '" }';
}
else if ( $_POST['action'] == "sidebar" )
{
require( "sidebar.php" );
// return JSON
echo '{ "token": "' . getCSRFToken() . '",'; // Get new token
echo ' "output": ' . json_encode( print_sidebar( $l, true ) ) . ' , ';
echo ' "ret": "0" }';
}
else if ( $_POST['action'] == "cfg-ui" )
{
$ret = $l->save( $_POST['value'] );
$ret = $ret !== FALSE ? 0 : 1;
// return JSON
echo '{ "token": "' . getCSRFToken() . '",'; // Get new token
echo ' "ret": "' . $ret . '" }';
}
}
// License
//
// This script is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This script is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this script; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place, Suite 330,
// Boston, MA 02111-1307 USA
?>
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