webadmin

<?php
$lang = 'en';
$homedir = './';
$editcols = 80;
$editrows = 25;
$htaccess = '.htaccess';
$htpasswd = '.htpasswd';

if (get_magic_quotes_gpc()) {
  array_walk($_GET, 'strip');
  array_walk($_POST, 'strip');
  array_walk($_REQUEST, 'strip');
}

if (array_key_exists('image', $_GET)) {
  header('Content-Type: image/gif');
  die(getimage($_GET['image']));
}

if (!function_exists('lstat')) {
  function lstat ($filename) {
    return stat($filename);
  }
}

$delim = DIRECTORY_SEPARATOR;

if (function_exists('php_uname')) {
  $win = (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') ? true : false;
} else {
  $win = ($delim == '\\') ? true : false;
}

if (!empty($_SERVER['PATH_TRANSLATED'])) {
  $scriptdir = dirname($_SERVER['PATH_TRANSLATED']);
} elseif (!empty($_SERVER['SCRIPT_FILENAME'])) {
  $scriptdir = dirname($_SERVER['SCRIPT_FILENAME']);
} elseif (function_exists('getcwd')) {
  $scriptdir = getcwd();
} else {
  $scriptdir = '.';
}

$homedir = relative2absolute($homedir, $scriptdir);
$dir = (array_key_exists('dir', $_REQUEST)) ? $_REQUEST['dir'] : $homedir;

if (array_key_exists('olddir', $_POST) && !path_is_relative($_POST['olddir'])) {
  $dir = relative2absolute($dir, $_POST['olddir']);
}

$directory = simplify_path(addslash($dir));
$files = array();
$action = '';

if (!empty($_POST['submit_all'])) {
  $action = $_POST['action_all'];
  for ($i = 0; $i < $_POST['num']; $i++) {
    if (array_key_exists("checked$i", $_POST) && $_POST["checked$i"] == 'true') {
      $files[] = $_POST["file$i"];
    }
  }
} elseif (!empty($_REQUEST['action'])) {
  $action = $_REQUEST['action'];
  $files[] = relative2absolute($_REQUEST['file'], $directory);
} elseif (!empty($_POST['submit_upload']) && !empty($_FILES['upload']['name'])) {
  $files[] = $_FILES['upload'];
  $action = 'upload';
} elseif (array_key_exists('num', $_POST)) {
  for ($i = 0; $i < $_POST['num']; $i++) {
    if (array_key_exists("submit$i", $_POST)) break;
  }
  if ($i < $_POST['num']) {
    $action = $_POST["action$i"];
    $files[] = $_POST["file$i"];
  }
}
if (empty($action) && (!empty($_POST['submit_create']) || (array_key_exists('focus', $_POST) && $_POST['focus'] == 'create')) && !empty($_POST['create_name'])) {
  $files[] = relative2absolute($_POST['create_name'], $directory);
  switch ($_POST['create_type']) {
  case 'directory':
    $action = 'create_directory';
    break;
  case 'file':
    $action = 'create_file';
  }
}
if (sizeof($files) == 0) $action = ''; else $file = reset($files);

if ($lang == 'auto') {
  if (array_key_exists('HTTP_ACCEPT_LANGUAGE', $_SERVER) && strlen($_SERVER['HTTP_ACCEPT_LANGUAGE']) >= 2) {
    $lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
  } else {
    $lang = 'en';
  }
}

$words = getwords($lang);

if ($site_charset == 'auto') {
  $site_charset = $word_charset;
}

$cols = ($win) ? 4 : 7;

if (!isset($dirpermission)) {
  $dirpermission = (function_exists('umask')) ? (0777 & ~umask()) : 0755;
}
if (!isset($filepermission)) {
  $filepermission = (function_exists('umask')) ? (0666 & ~umask()) : 0644;
}

if (!empty($_SERVER['SCRIPT_NAME'])) {
  $self = html(basename($_SERVER['SCRIPT_NAME']));
} elseif (!empty($_SERVER['PHP_SELF'])) {
  $self = html(basename($_SERVER['PHP_SELF']));
} else {
  $self = '';
}

if (!empty($_SERVER['SERVER_SOFTWARE'])) {
  if (strtolower(substr($_SERVER['SERVER_SOFTWARE'], 0, 6)) == 'apache') {
    $apache = true;
  } else {
    $apache = false;
  }
} else {
  $apache = true;
}

switch ($action) {

case 'view':

  if (is_script($file)) {

    /* highlight_file is a mess! */
    ob_start();
    highlight_file($file);
    $src = ereg_replace('<font color="([^"]*)">', '<span style="color: \1">', ob_get_contents());
    $src = str_replace(array('</font>', "\r", "\n"), array('</span>', '', ''), $src);
    ob_end_clean();

    html_header();
    echo '<h2 style="text-align: left; margin-bottom: 0">' . html($file) . '</h2>

<hr />

<table>
<tr>
<td style="text-align: right; vertical-align: top; color: gray; padding-right: 3pt; border-right: 1px solid gray">
<pre style="margin-top: 0"><code>';

    for ($i = 1; $i <= sizeof(file($file)); $i++) echo "$i\n";

    echo '</code></pre>
</td>
<td style="text-align: left; vertical-align: top; padding-left: 3pt">
<pre style="margin-top: 0">' . $src . '</pre>
</td>
</tr>
</table>

';

    html_footer();

  } else {

    header('Content-Type: ' . getmimetype($file));
    header('Content-Disposition: filename=' . basename($file));

    readfile($file);

  }

  break;

case 'download':

  header('Pragma: public');
  header('Expires: 0');
  header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
  header('Content-Type: ' . getmimetype($file));
  header('Content-Disposition: attachment; filename=' . basename($file) . ';');
  header('Content-Length: ' . filesize($file));

  readfile($file);

  break;

case 'upload':

  $dest = relative2absolute($file['name'], $directory);

  if (@file_exists($dest)) {
    listing_page(error('already_exists', $dest));
  } elseif (@move_uploaded_file($file['tmp_name'], $dest)) {
    @chmod($dest, $filepermission);
    listing_page(notice('uploaded', $file['name']));
  } else {
    listing_page(error('not_uploaded', $file['name']));
  }

  break;

case 'create_directory':

  if (@file_exists($file)) {
    listing_page(error('already_exists', $file));
  } else {
    $old = @umask(0777 & ~$dirpermission);
    if (@mkdir($file, $dirpermission)) {
      listing_page(notice('created', $file));
    } else {
      listing_page(error('not_created', $file));
    }
    @umask($old);
  }

  break;

case 'create_file':

  if (@file_exists($file)) {
    listing_page(error('already_exists', $file));
  } else {
    $old = @umask(0777 & ~$filepermission);
    if (@touch($file)) {
      edit($file);
    } else {
      listing_page(error('not_created', $file));
    }
    @umask($old);
  }

  break;

case 'execute':

  chdir(dirname($file));

  $output = array();
  $retval = 0;
  exec('echo "./' . basename($file) . '" | /bin/sh', $output, $retval);

  $error = ($retval == 0) ? false : true;

  if (sizeof($output) == 0) $output = array('<' . $words['no_output'] . '>');

  if ($error) {
    listing_page(error('not_executed', $file, implode("\n", $output)));
  } else {
    listing_page(notice('executed', $file, implode("\n", $output)));
  }

  break;

case 'delete':

  if (!empty($_POST['no'])) {
    listing_page();
  } elseif (!empty($_POST['yes'])) {

    $failure = array();
    $success = array();

    foreach ($files as $file) {
      if (del($file)) {
        $success[] = $file;
      } else {
        $failure[] = $file;
      }
    }

    $message = '';
    if (sizeof($failure) > 0) {
      $message = error('not_deleted', implode("\n", $failure));
    }
    if (sizeof($success) > 0) {
      $message .= notice('deleted', implode("\n", $success));
    }

    listing_page($message);

  } else {

    html_header();

    echo '<form action="' . $self . '" method="post">
<table class="dialog">
<tr>
<td class="dialog">
';

    request_dump();

    echo "\t<b>" . word('really_delete') . '</b>
  <p>
';

    foreach ($files as $file) {
      echo "\t" . html($file) . "<br />\n";
    }

    echo '  </p>
  <hr />
  <input type="submit" name="no" value="' . word('no') . '" id="red_button" />
  <input type="submit" name="yes" value="' . word('yes') . '" id="green_button" style="margin-left: 50px" />
</td>
</tr>
</table>
</form>

';

    html_footer();

  }

  break;

case 'rename':

  if (!empty($_POST['destination'])) {

    $dest = relative2absolute($_POST['destination'], $directory);

    if (!@file_exists($dest) && @rename($file, $dest)) {
      listing_page(notice('renamed', $file, $dest));
    } else {
      listing_page(error('not_renamed', $file, $dest));
    }

  } else {

    $name = basename($file);

    html_header();

    echo '<form action="' . $self . '" method="post">

<table class="dialog">
<tr>
<td class="dialog">
  <input type="hidden" name="action" value="rename" />
  <input type="hidden" name="file" value="' . html($file) . '" />
  <input type="hidden" name="dir" value="' . html($directory) . '" />
  <b>' . word('rename_file') . '</b>
  <p>' . html($file) . '</p>
  <b>' . substr($file, 0, strlen($file) - strlen($name)) . '</b>
  <input type="text" name="destination" size="' . textfieldsize($name) . '" value="' . html($name) . '" />
  <hr />
  <input type="submit" value="' . word('rename') . '" />
</td>
</tr>
</table>

<p><a href="' . $self . '?dir=' . urlencode($directory) . '">[ ' . word('back') . ' ]</a></p>

</form>

';

    html_footer();

  }

  break;

case 'move':

  if (!empty($_POST['destination'])) {

    $dest = relative2absolute($_POST['destination'], $directory);

    $failure = array();
    $success = array();

    foreach ($files as $file) {
      $filename = substr($file, strlen($directory));
      $d = $dest . $filename;
      if (!@file_exists($d) && @rename($file, $d)) {
        $success[] = $file;
      } else {
        $failure[] = $file;
      }
    }

    $message = '';
    if (sizeof($failure) > 0) {
      $message = error('not_moved', implode("\n", $failure), $dest);
    }
    if (sizeof($success) > 0) {
      $message .= notice('moved', implode("\n", $success), $dest);
    }

    listing_page($message);

  } else {

    html_header();

    echo '<form action="' . $self . '" method="post">

<table class="dialog">
<tr>
<td class="dialog">
';

    request_dump();

    echo "\t<b>" . word('move_files') . '</b>
  <p>
';

    foreach ($files as $file) {
      echo "\t" . html($file) . "<br />\n";
    }

    echo '  </p>
  <hr />
  ' . word('destination') . ':
  <input type="text" name="destination" size="' . textfieldsize($directory) . '" value="' . html($directory) . '" />
  <input type="submit" value="' . word('move') . '" />
</td>
</tr>
</table>

<p><a href="' . $self . '?dir=' . urlencode($directory) . '">[ ' . word('back') . ' ]</a></p>

</form>

';

    html_footer();

  }

  break;

case 'copy':

  if (!empty($_POST['destination'])) {

    $dest = relative2absolute($_POST['destination'], $directory);

    if (@is_dir($dest)) {

      $failure = array();
      $success = array();

      foreach ($files as $file) {
        $filename = substr($file, strlen($directory));
        $d = addslash($dest) . $filename;
        if (!@is_dir($file) && !@file_exists($d) && @copy($file, $d)) {
          $success[] = $file;
        } else {
          $failure[] = $file;
        }
      }

      $message = '';
      if (sizeof($failure) > 0) {
        $message = error('not_copied', implode("\n", $failure), $dest);
      }
      if (sizeof($success) > 0) {
        $message .= notice('copied', implode("\n", $success), $dest);
      }

      listing_page($message);

    } else {

      if (!@file_exists($dest) && @copy($file, $dest)) {
        listing_page(notice('copied', $file, $dest));
      } else {
        listing_page(error('not_copied', $file, $dest));
      }

    }

  } else {

    html_header();

    echo '<form action="' . $self . '" method="post">

<table class="dialog">
<tr>
<td class="dialog">
';

    request_dump();

    echo "\n<b>" . word('copy_files') . '</b>
  <p>
';

    foreach ($files as $file) {
      echo "\t" . html($file) . "<br />\n";
    }

    echo '  </p>
  <hr />
  ' . word('destination') . ':
  <input type="text" name="destination" size="' . textfieldsize($directory) . '" value="' . html($directory) . '" />
  <input type="submit" value="' . word('copy') . '" />
</td>
</tr>
</table>

<p><a href="' . $self . '?dir=' . urlencode($directory) . '">[ ' . word('back') . ' ]</a></p>

</form>

';

    html_footer();

  }

  break;

case 'create_symlink':

  if (!empty($_POST['destination'])) {

    $dest = relative2absolute($_POST['destination'], $directory);

    if (substr($dest, -1, 1) == $delim) $dest .= basename($file);

    if (!empty($_POST['relative'])) $file = absolute2relative(addslash(dirname($dest)), $file);

    if (!@file_exists($dest) && @symlink($file, $dest)) {
      listing_page(notice('symlinked', $file, $dest));
    } else {
      listing_page(error('not_symlinked', $file, $dest));
    }

  } else {

    html_header();

    echo '<form action="' . $self . '" method="post">

<table class="dialog" id="symlink">
<tr>
  <td style="vertical-align: top">' . word('destination') . ': </td>
  <td>
    <b>' . html($file) . '</b><br />
    <input type="checkbox" name="relative" value="yes" id="checkbox_relative" checked="checked" style="margin-top: 1ex" />
    <label for="checkbox_relative">' . word('relative') . '</label>
    <input type="hidden" name="action" value="create_symlink" />
    <input type="hidden" name="file" value="' . html($file) . '" />
    <input type="hidden" name="dir" value="' . html($directory) . '" />
  </td>
</tr>
<tr>
  <td>' . word('symlink') . ': </td>
  <td>
    <input type="text" name="destination" size="' . textfieldsize($directory) . '" value="' . html($directory) . '" />
    <input type="submit" value="' . word('create_symlink') . '" />
  </td>
</tr>
</table>

<p><a href="' . $self . '?dir=' . urlencode($directory) . '">[ ' . word('back') . ' ]</a></p>

</form>

';

    html_footer();

  }

  break;

case 'edit':

  if (!empty($_POST['save'])) {

    $content = str_replace("\r\n", "\n", $_POST['content']);

    if (($f = @fopen($file, 'w')) && @fwrite($f, $content) !== false && @fclose($f)) {
      listing_page(notice('saved', $file));
    } else {
      listing_page(error('not_saved', $file));
    }

  } else {

    if (@is_readable($file) && @is_writable($file)) {
      edit($file);
    } else {
      listing_page(error('not_edited', $file));
    }

  }

  break;

case 'permission':

  if (!empty($_POST['set'])) {

    $mode = 0;
    if (!empty($_POST['ur'])) $mode |= 0400; if (!empty($_POST['uw'])) $mode |= 0200; if (!empty($_POST['ux'])) $mode |= 0100;
    if (!empty($_POST['gr'])) $mode |= 0040; if (!empty($_POST['gw'])) $mode |= 0020; if (!empty($_POST['gx'])) $mode |= 0010;
    if (!empty($_POST['or'])) $mode |= 0004; if (!empty($_POST['ow'])) $mode |= 0002; if (!empty($_POST['ox'])) $mode |= 0001;

    if (@chmod($file, $mode)) {
      listing_page(notice('permission_set', $file, decoct($mode)));
    } else {
      listing_page(error('permission_not_set', $file, decoct($mode)));
    }

  } else {

    html_header();

    $mode = fileperms($file);

    echo '<form action="' . $self . '" method="post">

<table class="dialog">
<tr>
<td class="dialog">

  <p style="margin: 0">' . phrase('permission_for', $file) . '</p>

  <hr />

  <table id="permission">
  <tr>
    <td></td>
    <td style="border-right: 1px solid black">' . word('owner') . '</td>
    <td style="border-right: 1px solid black">' . word('group') . '</td>
    <td>' . word('other') . '</td>
  </tr>
  <tr>
    <td style="text-align: right">' . word('read') . ':</td>
    <td><input type="checkbox" name="ur" value="1"'; if ($mode & 00400) echo ' checked="checked"'; echo ' /></td>
    <td><input type="checkbox" name="gr" value="1"'; if ($mode & 00040) echo ' checked="checked"'; echo ' /></td>
    <td><input type="checkbox" name="or" value="1"'; if ($mode & 00004) echo ' checked="checked"'; echo ' /></td>
  </tr>
  <tr>
    <td style="text-align: right">' . word('write') . ':</td>
    <td><input type="checkbox" name="uw" value="1"'; if ($mode & 00200) echo ' checked="checked"'; echo ' /></td>
    <td><input type="checkbox" name="gw" value="1"'; if ($mode & 00020) echo ' checked="checked"'; echo ' /></td>
    <td><input type="checkbox" name="ow" value="1"'; if ($mode & 00002) echo ' checked="checked"'; echo ' /></td>
  </tr>
  <tr>
    <td style="text-align: right">' . word('execute') . ':</td>
    <td><input type="checkbox" name="ux" value="1"'; if ($mode & 00100) echo ' checked="checked"'; echo ' /></td>
    <td><input type="checkbox" name="gx" value="1"'; if ($mode & 00010) echo ' checked="checked"'; echo ' /></td>
    <td><input type="checkbox" name="ox" value="1"'; if ($mode & 00001) echo ' checked="checked"'; echo ' /></td>
  </tr>
  </table>

  <hr />

  <input type="submit" name="set" value="' . word('set') . '" />

  <input type="hidden" name="action" value="permission" />
  <input type="hidden" name="file" value="' . html($file) . '" />
  <input type="hidden" name="dir" value="' . html($directory) . '" />

</td>
</tr>
</table>

<p><a href="' . $self . '?dir=' . urlencode($directory) . '">[ ' . word('back') . ' ]</a></p>

</form>

';

    html_footer();

  }

  break;

default:

  listing_page();

}

function getlist ($directory) {
  global $delim, $win;

  if ($d = @opendir($directory)) {

    while (($filename = @readdir($d)) !== false) {

      $path = $directory . $filename;

      if ($stat = @lstat($path)) {

        $file = array(
          'filename'    => $filename,
          'path'        => $path,
          'is_file'     => @is_file($path),
          'is_dir'      => @is_dir($path),
          'is_link'     => @is_link($path),
          'is_readable' => @is_readable($path),
          'is_writable' => @is_writable($path),
          'size'        => $stat['size'],
          'permission'  => $stat['mode'],
          'owner'       => $stat['uid'],
          'group'       => $stat['gid'],
          'mtime'       => @filemtime($path),
          'atime'       => @fileatime($path),
          'ctime'       => @filectime($path)
        );

        if ($file['is_dir']) {
          $file['is_executable'] = @file_exists($path . $delim . '.');
        } else {
          if (!$win) {
            $file['is_executable'] = @is_executable($path);
          } else {
            $file['is_executable'] = true;
          }
        }

        if ($file['is_link']) $file['target'] = @readlink($path);

        if (function_exists('posix_getpwuid')) $file['owner_name'] = @reset(posix_getpwuid($file['owner']));
        if (function_exists('posix_getgrgid')) $file['group_name'] = @reset(posix_getgrgid($file['group']));

        $files[] = $file;

      }

    }

    return $files;

  } else {
    return false;
  }

}

function sortlist ($list, $key, $reverse) {

  $dirs = array();
  $files = array();

  for ($i = 0; $i < sizeof($list); $i++) {
    if ($list[$i]['is_dir']) $dirs[] = $list[$i];
    else $files[] = $list[$i];
  }

  quicksort($dirs, 0, sizeof($dirs) - 1, $key);
  if ($reverse) $dirs = array_reverse($dirs);

  quicksort($files, 0, sizeof($files) - 1, $key);
  if ($reverse) $files = array_reverse($files);

  return array_merge($dirs, $files);

}

function quicksort (&$array, $first, $last, $key) {

  if ($first < $last) {

    $cmp = $array[floor(($first + $last) / 2)][$key];

    $l = $first;
    $r = $last;

    while ($l <= $r) {

      while ($array[$l][$key] < $cmp) $l++;
      while ($array[$r][$key] > $cmp) $r--;

      if ($l <= $r) {

        $tmp = $array[$l];
        $array[$l] = $array[$r];
        $array[$r] = $tmp;

        $l++;
        $r--;

      }

    }

    quicksort($array, $first, $r, $key);
    quicksort($array, $l, $last, $key);

  }

}

function permission_octal2string ($mode) {

  if (($mode & 0xC000) === 0xC000) {
    $type = 's';
  } elseif (($mode & 0xA000) === 0xA000) {
    $type = 'l';
  } elseif (($mode & 0x8000) === 0x8000) {
    $type = '-';
  } elseif (($mode & 0x6000) === 0x6000) {
    $type = 'b';
  } elseif (($mode & 0x4000) === 0x4000) {
    $type = 'd';
  } elseif (($mode & 0x2000) === 0x2000) {
    $type = 'c';
  } elseif (($mode & 0x1000) === 0x1000) {
    $type = 'p';
  } else {
    $type = '?';
  }

  $owner  = ($mode & 00400) ? 'r' : '-';
  $owner .= ($mode & 00200) ? 'w' : '-';
  if ($mode & 0x800) {
    $owner .= ($mode & 00100) ? 's' : 'S';
  } else {
    $owner .= ($mode & 00100) ? 'x' : '-';
  }

  $group  = ($mode & 00040) ? 'r' : '-';
  $group .= ($mode & 00020) ? 'w' : '-';
  if ($mode & 0x400) {
    $group .= ($mode & 00010) ? 's' : 'S';
  } else {
    $group .= ($mode & 00010) ? 'x' : '-';
  }

  $other  = ($mode & 00004) ? 'r' : '-';
  $other .= ($mode & 00002) ? 'w' : '-';
  if ($mode & 0x200) {
    $other .= ($mode & 00001) ? 't' : 'T';
  } else {
    $other .= ($mode & 00001) ? 'x' : '-';
  }

  return $type . $owner . $group . $other;

}

function is_script ($filename) {
  return ereg('\.php$|\.php3$|\.php4$|\.php5$', $filename);
}

function getmimetype ($filename) {
  static $mimes = array(
    '\.jpg$|\.jpeg$'  => 'image/jpeg',
    '\.gif$'          => 'image/gif',
    '\.png$'          => 'image/png',
    '\.html$|\.html$' => 'text/html',
    '\.txt$|\.asc$'   => 'text/plain',
    '\.xml$|\.xsl$'   => 'application/xml',
    '\.pdf$'          => 'application/pdf'
  );

  foreach ($mimes as $regex => $mime) {
    if (eregi($regex, $filename)) return $mime;
  }

  // return 'application/octet-stream';
  return 'text/plain';

}

function del ($file) {
  global $delim;

  if (!file_exists($file)) return false;

  if (@is_dir($file) && !@is_link($file)) {

    $success = false;

    if (@rmdir($file)) {

      $success = true;

    } elseif ($dir = @opendir($file)) {

      $success = true;

      while (($f = readdir($dir)) !== false) {
        if ($f != '.' && $f != '..' && !del($file . $delim . $f)) {
          $success = false;
        }
      }
      closedir($dir);

      if ($success) $success = @rmdir($file);

    }

    return $success;

  }

  return @unlink($file);

}

function addslash ($directory) {
  global $delim;

  if (substr($directory, -1, 1) != $delim) {
    return $directory . $delim;
  } else {
    return $directory;
  }

}

function relative2absolute ($string, $directory) {

  if (path_is_relative($string)) {
    return simplify_path(addslash($directory) . $string);
  } else {
    return simplify_path($string);
  }

}

function path_is_relative ($path) {
  global $win;

  if ($win) {
    return (substr($path, 1, 1) != ':');
  } else {
    return (substr($path, 0, 1) != '/');
  }

}

function absolute2relative ($directory, $target) {
  global $delim;

  $path = '';
  while ($directory != $target) {
    if ($directory == substr($target, 0, strlen($directory))) {
      $path .= substr($target, strlen($directory));
      break;
    } else {
      $path .= '..' . $delim;
      $directory = substr($directory, 0, strrpos(substr($directory, 0, -1), $delim) + 1);
    }
  }
  if ($path == '') $path = '.';

  return $path;

}

function simplify_path ($path) {
  global $delim;

  if (@file_exists($path) && function_exists('realpath') && @realpath($path) != '') {
    $path = realpath($path);
    if (@is_dir($path)) {
      return addslash($path);
    } else {
      return $path;
    }
  }

  $pattern  = $delim . '.' . $delim;

  if (@is_dir($path)) {
    $path = addslash($path);
  }

  while (strpos($path, $pattern) !== false) {
    $path = str_replace($pattern, $delim, $path);
  }

  $e = addslashes($delim);
  $regex = $e . '((\.[^\.' . $e . '][^' . $e . ']*)|(\.\.[^' . $e . ']+)|([^\.][^' . $e . ']*))' . $e . '\.\.' . $e;

  while (ereg($regex, $path)) {
    $path = ereg_replace($regex, $delim, $path);
  }

  return $path;

}

function human_filesize ($filesize) {

  $suffices = 'kMGTPE';

  $n = 0;
  while ($filesize >= 1000) {
    $filesize /= 1024;
    $n++;
  }

  $filesize = round($filesize, 3 - strpos($filesize, '.'));

  if (strpos($filesize, '.') !== false) {
    while (in_array(substr($filesize, -1, 1), array('0', '.'))) {
      $filesize = substr($filesize, 0, strlen($filesize) - 1);
    }
  }

  $suffix = (($n == 0) ? '' : substr($suffices, $n - 1, 1));

  return $filesize . " {$suffix}B";

}

function strip (&$str) {
  $str = stripslashes($str);
}

/* ------------------------------------------------------------------------- */

function listing_page ($message = null) {
  global $self, $directory, $sort, $reverse;

  html_header();

  $list = getlist($directory);

  if (array_key_exists('sort', $_GET)) $sort = $_GET['sort']; else $sort = 'filename';
  if (array_key_exists('reverse', $_GET) && $_GET['reverse'] == 'true') $reverse = true; else $reverse = false;

  echo '<h1 style="margin-bottom: 0">webadmin.php</h1>

<form enctype="multipart/form-data" action="' . $self . '" method="post">

<table id="main">
';

  directory_choice();

  if (!empty($message)) {
    spacer();
    echo $message;
  }

  if (@is_writable($directory)) {
    upload_box();
    create_box();
  } else {
    spacer();
  }

  if ($list) {
    $list = sortlist($list, $sort, $reverse);
    listing($list);
  } else {
    echo error('not_readable', $directory);
  }

  echo '</table>

</form>

';

  html_footer();

}

function listing ($list) {
  global $directory, $homedir, $sort, $reverse, $win, $cols, $date_format, $self;

  echo '<tr class="listing">
  <th style="text-align: center; vertical-align: middle"><img src="' . $self . '?image=smiley" alt="smiley" /></th>
';

  column_title('filename', $sort, $reverse);
  column_title('size', $sort, $reverse);

  if (!$win) {
    column_title('permission', $sort, $reverse);
    column_title('owner', $sort, $reverse);
    column_title('group', $sort, $reverse);
  }

  echo '  <th class="functions">' . word('functions') . '</th>
</tr>
';

  for ($i = 0; $i < sizeof($list); $i++) {
    $file = $list[$i];

    $timestamps  = 'mtime: ' . date($date_format, $file['mtime']) . ', ';
    $timestamps .= 'atime: ' . date($date_format, $file['atime']) . ', ';
    $timestamps .= 'ctime: ' . date($date_format, $file['ctime']);

    echo '<tr class="listing">
  <td class="checkbox"><input type="checkbox" name="checked' . $i . '" value="true" onfocus="activate(\'other\')" /></td>
  <td class="filename" title="' . html($timestamps) . '">';

    if ($file['is_link']) {

      echo '<img src="' . $self . '?image=link" alt="link" /> ';
      echo html($file['filename']) . ' &rarr; ';

      $real_file = relative2absolute($file['target'], $directory);

      if (@is_readable($real_file)) {
        if (@is_dir($real_file)) {
          echo '[ <a href="' . $self . '?dir=' . urlencode($real_file) . '">' . html($file['target']) . '</a> ]';
        } else {
          echo '<a href="' . $self . '?action=view&amp;file=' . urlencode($real_file) . '">' . html($file['target']) . '</a>';
        }
      } else {
        echo html($file['target']);
      }

    } elseif ($file['is_dir']) {

      echo '<img src="' . $self . '?image=folder" alt="folder" /> [ ';
      if ($win || $file['is_executable']) {
        echo '<a href="' . $self . '?dir=' . urlencode($file['path']) . '">' . html($file['filename']) . '</a>';
      } else {
        echo html($file['filename']);
      }
      echo ' ]';

    } else {

      if (substr($file['filename'], 0, 1) == '.') {
        echo '<img src="' . $self . '?image=hidden_file" alt="hidden file" /> ';
      } else {
        echo '<img src="' . $self . '?image=file" alt="file" /> ';
      }

      if ($file['is_file'] && $file['is_readable']) {
         echo '<a href="' . $self . '?action=view&amp;file=' . urlencode($file['path']) . '">' . html($file['filename']) . '</a>';
      } else {
        echo html($file['filename']);
      }

    }

    if ($file['size'] >= 1000) {
      $human = ' title="' . human_filesize($file['size']) . '"';
    } else {
      $human = '';
    }

    echo "</td>\n";

    echo "\t<td class=\"size\"$human>{$file['size']} B</td>\n";

    if (!$win) {

      echo "\t<td class=\"permission\" title=\"" . decoct($file['permission']) . '">';

      $l = !$file['is_link'] && (!function_exists('posix_getuid') || $file['owner'] == posix_getuid());
      if ($l) echo '<a href="' . $self . '?action=permission&amp;file=' . urlencode($file['path']) . '&amp;dir=' . urlencode($directory) . '">';
      echo html(permission_octal2string($file['permission']));
      if ($l) echo '</a>';

      echo "</td>\n";

      if (array_key_exists('owner_name', $file)) {
        echo "\t<td class=\"owner\" title=\"uid: {$file['owner']}\">{$file['owner_name']}</td>\n";
      } else {
        echo "\t<td class=\"owner\">{$file['owner']}</td>\n";
      }

      if (array_key_exists('group_name', $file)) {
        echo "\t<td class=\"group\" title=\"gid: {$file['group']}\">{$file['group_name']}</td>\n";
      } else {
        echo "\t<td class=\"group\">{$file['group']}</td>\n";
      }

    }

    echo '  <td class="functions">
    <input type="hidden" name="file' . $i . '" value="' . html($file['path']) . '" />
';

    $actions = array();
    if (function_exists('symlink')) {
      $actions[] = 'create_symlink';
    }
    if (@is_writable(dirname($file['path']))) {
      $actions[] = 'delete';
      $actions[] = 'rename';
      $actions[] = 'move';
    }
    if ($file['is_file'] && $file['is_readable']) {
      $actions[] = 'copy';
      $actions[] = 'download';
      if ($file['is_writable']) $actions[] = 'edit';
    }
    if (!$win && function_exists('exec') && $file['is_file'] && $file['is_executable'] && file_exists('/bin/sh')) {
      $actions[] = 'execute';
    }

    if (sizeof($actions) > 0) {

      echo '    <select class="small" name="action' . $i . '" size="1">
    <option value="">' . str_repeat('&nbsp;', 30) . '</option>
';

      foreach ($actions as $action) {
        echo "\t\t<option value=\"$action\">" . word($action) . "</option>\n";
      }

      echo '    </select>
    <input class="small" type="submit" name="submit' . $i . '" value=" &gt; " onfocus="activate(\'other\')" />
';

    }

    echo '  </td>
</tr>
';

  }

  echo '<tr class="listing_footer">
  <td style="text-align: right; vertical-align: top"><img src="' . $self . '?image=arrow" alt="&gt;" /></td>
  <td colspan="' . ($cols - 1) . '">
    <input type="hidden" name="num" value="' . sizeof($list) . '" />
    <input type="hidden" name="focus" value="" />
    <input type="hidden" name="olddir" value="' . html($directory) . '" />
';

  $actions = array();
  if (@is_writable(dirname($file['path']))) {
    $actions[] = 'delete';
    $actions[] = 'move';
  }
  $actions[] = 'copy';
  echo '    <select class="small" name="action_all" size="1">
    <option value="">' . str_repeat('&nbsp;', 30) . '</option>
';

  foreach ($actions as $action) {
    echo "\t\t<option value=\"$action\">" . word($action) . "</option>\n";
  }

  echo '    </select>
    <input class="small" type="submit" name="submit_all" value=" &gt; " onfocus="activate(\'other\')" />
  </td>
</tr>
';
}

function column_title ($column, $sort, $reverse) {
  global $self, $directory;
  $d = 'dir=' . urlencode($directory) . '&amp;';
  $arr = '';
  if ($sort == $column) {
    if (!$reverse) {
      $r = '&amp;reverse=true';
      $arr = ' &and;';
    } else {
      $arr = ' &or;';
    }
  } else {
    $r = '';
  }
  echo "\t<th class=\"$column\"><a href=\"$self?{$d}sort=$column$r\">" . word($column) . "</a>$arr</th>\n";
}

function directory_choice () {
  global $directory, $homedir, $cols, $self;
  echo '<tr>
  <td colspan="' . $cols . '" id="directory">
    <a href="' . $self . '?dir=' . urlencode($homedir) . '">' . word('directory') . '</a>:
    <input type="text" name="dir" size="' . textfieldsize($directory) . '" value="' . html($directory) . '" onfocus="activate(\'directory\')" />
    <input type="submit" name="changedir" value="' . word('change') . '" onfocus="activate(\'directory\')" />
  </td>
</tr>
';
}

function upload_box () {
  global $cols;
  echo '<tr>
  <td colspan="' . $cols . '" id="upload">
    ' . word('file') . ':
    <input type="file" name="upload" onfocus="activate(\'other\')" />
    <input type="submit" name="submit_upload" value="' . word('upload') . '" onfocus="activate(\'other\')" />
  </td>
</tr>
';
}

function create_box () {
  global $cols;
  echo '<tr>
  <td colspan="' . $cols . '" id="create">
    <select name="create_type" size="1" onfocus="activate(\'create\')">
    <option value="file">' . word('file') . '</option>
    <option value="directory">' . word('directory') . '</option>
    </select>
    <input type="text" name="create_name" onfocus="activate(\'create\')" />
    <input type="submit" name="submit_create" value="' . word('create') . '" onfocus="activate(\'create\')" />
  </td>
</tr>
';
}

function edit ($file) {
  global $self, $directory, $editcols, $editrows, $apache, $htpasswd, $htaccess;
  html_header();
  echo '<h2 style="margin-bottom: 3pt">' . html($file) . '</h2>
<form action="' . $self . '" method="post">
<table class="dialog">
<tr>
<td class="dialog">
  <textarea name="content" cols="' . $editcols . '" rows="' . $editrows . '" WRAP="off">';

  if (array_key_exists('content', $_POST)) {
    echo $_POST['content'];
  } else {
    $f = fopen($file, 'r');
    while (!feof($f)) {
      echo html(fread($f, 8192));
    }
    fclose($f);
  }

  if (!empty($_POST['user'])) {
    echo "\n" . $_POST['user'] . ':' . crypt($_POST['password']);
  }
  if (!empty($_POST['basic_auth'])) {
    if ($win) {
      $authfile = str_replace('\\', '/', $directory) . $htpasswd;
    } else {
      $authfile = $directory . $htpasswd;
    }
    echo "\nAuthType Basic\nAuthName &quot;Restricted Directory&quot;\n";
    echo 'AuthUserFile &quot;' . html($authfile) . "&quot;\n";
    echo 'Require valid-user';
  }
  echo '</textarea>
  <hr />
';
  if ($apache && basename($file) == $htpasswd) {
    echo '
  ' . word('user') . ': <input type="text" name="user" />
  ' . word('password') . ': <input type="password" name="password" />
  <input type="submit" value="' . word('add') . '" />
  <hr />
';
  }
  if ($apache && basename($file) == $htaccess) {
    echo '
  <input type="submit" name="basic_auth" value="' . word('add_basic_auth') . '" />
  <hr />
';
  }
  echo '
  <input type="hidden" name="action" value="edit" />
  <input type="hidden" name="file" value="' . html($file) . '" />
  <input type="hidden" name="dir" value="' . html($directory) . '" />
  <input type="reset" value="' . word('reset') . '" id="red_button" />
  <input type="submit" name="save" value="' . word('save') . '" id="green_button" style="margin-left: 50px" />
</td>
</tr>
</table>
<p><a href="' . $self . '?dir=' . urlencode($directory) . '">[ ' . word('back') . ' ]</a></p>
</form>
';
  html_footer();
}

function spacer () {
  global $cols;
  echo '<tr>
  <td colspan="' . $cols . '" style="height: 1em"></td>
</tr>
';
}

function textfieldsize ($content) {
  $size = strlen($content) + 5;
  if ($size < 30) $size = 30;
  return $size;
}

function request_dump () {
  foreach ($_REQUEST as $key => $value) {
    echo "\t<input type=\"hidden\" name=\"" . html($key) . '" value="' . html($value) . "\" />\n";
  }
}

function html ($string) {
  global $site_charset;
  return htmlentities($string, ENT_COMPAT, $site_charset);
}

function word ($word) {
  global $words, $word_charset;
  return htmlentities($words[$word], ENT_COMPAT, $word_charset);
}

function phrase ($phrase, $arguments) {
  global $words;
  static $search;
  if (!is_array($search)) for ($i = 1; $i <= 8; $i++) $search[] = "%$i";
  for ($i = 0; $i < sizeof($arguments); $i++) {
    $arguments[$i] = nl2br(html($arguments[$i]));
  }
  $replace = array('{' => '<pre>', '}' =>'</pre>', '[' => '<b>', ']' => '</b>');
  return str_replace($search, $arguments, str_replace(array_keys($replace), $replace, nl2br(html($words[$phrase]))));
}

function getwords ($lang) {
  global $date_format, $word_charset;
  $word_charset = 'UTF-8';
  switch ($lang) {
  case 'en':
  default:
    $date_format = 'n/j/y H:i:s';
    return array(
'directory' => 'Directory',
'file' => 'File',
'filename' => 'Filename',
'size' => 'Size',
'permission' => 'Permission',
'owner' => 'Owner',
'group' => 'Group',
'other' => 'Others',
'functions' => 'Functions',
'read' => 'read',
'write' => 'write',
'execute' => 'execute',
'create_symlink' => 'create symlink',
'delete' => 'delete',
'rename' => 'rename',
'move' => 'move',
'copy' => 'copy',
'edit' => 'edit',
'download' => 'download',
'upload' => 'upload',
'create' => 'create',
'change' => 'change',
'save' => 'save',
'set' => 'set',
'reset' => 'reset',
'relative' => 'Relative path to target',
'yes' => 'Yes',
'no' => 'No',
'back' => 'back',
'destination' => 'Destination',
'symlink' => 'Symlink',
'no_output' => 'no output',
'user' => 'User',
'password' => 'Password',
'add' => 'add',
'add_basic_auth' => 'add basic-authentification',
'uploaded' => '"[%1]" has been uploaded.',
'not_uploaded' => '"[%1]" could not be uploaded.',
'already_exists' => '"[%1]" already exists.',
'created' => '"[%1]" has been created.',
'not_created' => '"[%1]" could not be created.',
'really_delete' => 'Delete these files?',
'deleted' => "These files have been deleted:\n[%1]",
'not_deleted' => "These files could not be deleted:\n[%1]",
'rename_file' => 'Rename file:',
'renamed' => '"[%1]" has been renamed to "[%2]".',
'not_renamed' => '"[%1] could not be renamed to "[%2]".',
'move_files' => 'Move these files:',
'moved' => "These files have been moved to \"[%2]\":\n[%1]",
'not_moved' => "These files could not be moved to \"[%2]\":\n[%1]",
'copy_files' => 'Copy these files:',
'copied' => "These files have been copied to \"[%2]\":\n[%1]",
'not_copied' => "These files could not be copied to \"[%2]\":\n[%1]",
'not_edited' => '"[%1]" can not be edited.',
'executed' => "\"[%1]\" has been executed successfully:\n{%2}",
'not_executed' => "\"[%1]\" could not be executed successfully:\n{%2}",
'saved' => '"[%1]" has been saved.',
'not_saved' => '"[%1]" could not be saved.',
'symlinked' => 'Symlink from "[%2]" to "[%1]" has been created.',
'not_symlinked' => 'Symlink from "[%2]" to "[%1]" could not be created.',
'permission_for' => 'Permission of "[%1]":',
'permission_set' => 'Permission of "[%1]" was set to [%2].',
'permission_not_set' => 'Permission of "[%1]" could not be set to [%2].',
'not_readable' => '"[%1]" can not be read.'
    );
  }
}

function getimage ($image) {
  switch ($image) {
  case 'file':
    return base64_decode('R0lGODlhEQANAJEDAJmZmf///wAAAP///yH5BAHoAwMALAAAAAARAA0AAAItnIGJxg0B42rsiSvCA/REmXQWhmnih3LUSGaqg35vFbSXucbSabunjnMohq8CADsA');
  case 'folder':
    return base64_decode('R0lGODlhEQANAJEDAJmZmf///8zMzP///yH5BAHoAwMALAAAAAARAA0AAAIqnI+ZwKwbYgTPtIudlbwLOgCBQJYmCYrn+m3smY5vGc+0a7dhjh7ZbygAADsA');
  case 'hidden_file':
    return base64_decode('R0lGODlhEQANAJEDAMwAAP///5mZmf///yH5BAHoAwMALAAAAAARAA0AAAItnIGJxg0B42rsiSvCA/REmXQWhmnih3LUSGaqg35vFbSXucbSabunjnMohq8CADsA');
  case 'link':
    return base64_decode('R0lGODlhEQANAKIEAJmZmf///wAAAMwAAP///wAAAAAAAAAAACH5BAHoAwQALAAAAAARAA0AAAM5SArcrDCCQOuLcIotwgTYUllNOA0DxXkmhY4shM5zsMUKTY8gNgUvW6cnAaZgxMyIM2zBLCaHlJgAADsA');
  case 'smiley':
    return base64_decode('R0lGODlhEQANAJECAAAAAP//AP///wAAACH5BAHoAwIALAAAAAARAA0AAAIslI+pAu2wDAiz0jWD3hqmBzZf1VCleJQch0rkdnppB3dKZuIygrMRE/oJDwUAOwA=');
  case 'arrow':
    return base64_decode('R0lGODlhEQANAIABAAAAAP///yH5BAEKAAEALAAAAAARAA0AAAIdjA9wy6gNQ4pwUmav0yvn+hhJiI3mCJ6otrIkxxQAOw==');
  }
}

function html_header () {
  global $site_charset;

  echo <<<END
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>

<meta http-equiv="Content-Type" content="text/html; charset=$site_charset" />

<title>webadmin.php</title>

<style type="text/css">
body { font: small sans-serif; text-align: center }
img { width: 17px; height: 13px }
a, a:visited { text-decoration: none; color: navy }
hr { border-style: none; height: 1px; background-color: silver; color: silver }
#main { margin-top: 6pt; margin-left: auto; margin-right: auto; border-spacing: 1px }
#main th { background: #eee; padding: 3pt 3pt 0pt 3pt }
.listing th, .listing td { padding: 1px 3pt 0 3pt }
.listing th { border: 1px solid silver }
.listing td { border: 1px solid #ddd; background: white }
.listing .checkbox { text-align: center }
.listing .filename { text-align: left }
.listing .size { text-align: right }
.listing th.permission { text-align: left }
.listing td.permission { font-family: monospace }
.listing .owner { text-align: left }
.listing .group { text-align: left }
.listing .functions { text-align: left }
.listing_footer td { background: #eee; border: 1px solid silver }
#directory, #upload, #create, .listing_footer td, #error td, #notice td { text-align: left; padding: 3pt }
#directory { background: #eee; border: 1px solid silver }
#upload { padding-top: 1em }
#create { padding-bottom: 1em }
.small, .small option { font-size: x-small }
textarea { border: none; background: white }
table.dialog { margin-left: auto; margin-right: auto }
td.dialog { background: #eee; padding: 1ex; border: 1px solid silver; text-align: center }
#permission { margin-left: auto; margin-right: auto }
#permission td { padding-left: 3pt; padding-right: 3pt; text-align: center }
td.permission_action { text-align: right }
#symlink { background: #eee; border: 1px solid silver }
#symlink td { text-align: left; padding: 3pt }
#red_button { width: 120px; color: #400 }
#green_button { width: 120px; color: #040 }
#error td { background: maroon; color: white; border: 1px solid silver }
#notice td { background: green; color: white; border: 1px solid silver }
#notice pre, #error pre { background: silver; color: black; padding: 1ex; margin-left: 1ex; margin-right: 1ex }
code { font-size: 12pt }
td { white-space: nowrap }
</style>

<script type="text/javascript">
<!--
function activate (name) {
  if (document && document.forms[0] && document.forms[0].elements['focus']) {
    document.forms[0].elements['focus'].value = name;
  }
}
//-->
</script>
</head>
<body>
END;
}

function html_footer () {
  echo <<<END
</body>
</html>
END;

}

function notice ($phrase) {
  global $cols;
  $args = func_get_args();
  array_shift($args);
  return '<tr id="notice">
  <td colspan="' . $cols . '">' . phrase($phrase, $args) . '</td>
</tr>
';

}

function error ($phrase) {
  global $cols;
  $args = func_get_args();
  array_shift($args);
  return '<tr id="error">
  <td colspan="' . $cols . '">' . phrase($phrase, $args) . '</td>
</tr>
';

}
?>