/**
*
* create directory tree html
*/
public function getDirectoryTree($path, $skip_files = false, $link_prefix = '')
{
$objects = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path), RecursiveIteratorIterator::SELF_FIRST);
$dom = new DomDocument("1.0");
$li = $dom;
$ul = $dom->createElement('ul');
$li->appendChild($ul);
$el = $dom->createElement('li');
$a = $dom->createElement('a', 'Home');
$at = $dom->createAttribute('clink');
$at->value = $link_prefix;
$el->appendChild($a);
$el->appendChild($at);
$ul->appendChild($el);
$node = $ul;
$depth = -1;
$skip_dir = '';
foreach ($objects as $object) {
$name = $object->getFilename();
$path = $object->getPathname();
$isDir = is_dir($path);
$link = str_replace($this->_repository, '', $path);
$level = substr_count($link, '\\');
$link = File::encodeurl(ltrim($link, '/\\'));
$accessLevel = $_SESSION['role'] == 'Lecturer' ? 2 : 0;
//skip unwanted folders to 2 levels
if (!in_array($link, $this->_allowedPaths) && $level <= $accessLevel && $isDir) {
$skip_dir = str_replace('..', '', $link);
continue;
}
if ($skip_dir != '' && !in_array($link, $this->_allowedPaths) && strstr($link, $skip_dir)) {
continue;
}
// skip unwanted files
if ($name == '.' || $name == '..' || in_array($name, Config::get('restricted_files')) && !$isDir) {
continue;
}
$skip_dir = '';
$skip = false;
if ($isDir == false && $skip_files == true) {
// skip unwanted files
$skip = true;
} elseif ($isDir == false) {
// this is regural file, no links here
$link = '';
} else {
// this is dir
$link = $link;
}
if ($objects->getDepth() == $depth) {
//the depth hasnt changed so just add another li
if (!$skip) {
$el = $dom->createElement('li');
$a = $dom->createElement('a', $name);
$at = $dom->createAttribute('clink');
$at->value = $link_prefix . $this->encrypt($link);
$el->appendChild($a);
$el->appendChild($at);
if (!$isDir) {
$el->appendChild($dom->createAttribute('isfile'));
}
$node->appendChild($el);
}
} elseif ($objects->getDepth() > $depth) {
//the depth increased, the last li is a non-empty folder
$li = $node->lastChild;
$ul = $dom->createElement('ul');
$li->appendChild($ul);
if (!$skip) {
$el = $dom->createElement('li');
$a = $dom->createElement('a', $name);
$at = $dom->createAttribute('clink');
$at->value = $link_prefix . $this->encrypt($link);
$el->appendChild($a);
$el->appendChild($at);
if (!$isDir) {
$el->appendChild($dom->createAttribute('isfile'));
}
$ul->appendChild($el);
}
$node = $ul;
} else {
//the depth decreased, going up $difference directories
$difference = $depth - $objects->getDepth();
for ($i = 0; $i < $difference; $difference--) {
$node = $node->parentNode->parentNode;
}
if (!$skip) {
$el = $dom->createElement('li');
$a = $dom->createElement('a', $name);
$at = $dom->createAttribute('clink');
$at->value = $link_prefix . $this->encrypt($link);
$el->appendChild($a);
$el->appendChild($at);
if (!$isDir) {
$el->appendChild($dom->createAttribute('isfile'));
}
$node->appendChild($el);
}
}
$depth = $objects->getDepth();
}
return $dom->saveHtml();
}
