public static function build($buffer)
{
$xml = new DOMDocument('1.0', 'UTF-8');
$xml->formatOutput = true;
$xml->registerNodeClass('\\DOMElement', '\\AfriCC\\EPP\\DOM\\DOMElement');
$xml->loadXML($buffer);
$xpath = new DOMXPath($xml);
foreach (ObjectSpec::$specs as $prefix => $spec) {
$xpath->registerNamespace($prefix, $spec['xmlns']);
}
$nodes = $xml->getElementsByTagNameNS(ObjectSpec::xmlns('epp'), 'epp');
if ($nodes === null || $nodes->length !== 1) {
return $buffer;
}
if (!$nodes->item(0)->hasChildNodes()) {
return $buffer;
}
foreach ($nodes->item(0)->childNodes as $node) {
// ignore non-nodes
if ($node->nodeType !== XML_ELEMENT_NODE) {
continue;
}
// ok now we can create an object according to the response-frame
$frame_type = strtolower($node->localName);
if ($frame_type === 'response') {
// check if it is a message queue
$results = $xpath->query('//epp:epp/epp:response/epp:msgQ');
if ($results->length > 0) {
return new \AfriCC\EPP\Frame\Response\MessageQueue($xml);
}
return new Response($xml);
}
}
return $buffer;
}
protected function createNodes($path)
{
$path_parts = explode('/', $path);
$node_path = null;
for ($i = 0, $limit = count($path_parts); $i < $limit; ++$i) {
$attr_name = $attr_value = null;
// if no namespace given, use root-namespace
if (strpos($path_parts[$i], ':') === false) {
$node_ns = 'epp';
$node_name = $path_parts[$i];
$path_parts[$i] = $node_ns . ':' . $node_name;
} else {
list($node_ns, $node_name) = explode(':', $path_parts[$i], 2);
}
// check for node-array
if (substr($node_name, -2) === '[]') {
$node_name = substr($node_name, 0, -2);
// get next key
$next_key = -1;
foreach (array_keys($this->nodes) as $each) {
if (preg_match('/' . preg_quote($node_ns . ':' . $node_name, '/') . '\\[(\\d+)\\]$/', $each, $matches)) {
if ($matches[1] > $next_key) {
$next_key = (int) $matches[1];
}
}
}
++$next_key;
$path_parts[$i] = sprintf('%s:%s[%d]', $node_ns, $node_name, $next_key);
}
// direct node-array access
if (preg_match('/^(.*)\\[(\\d+)\\]$/', $node_name, $matches)) {
$node_name = $matches[1];
} elseif (preg_match('/^(.*)\\[@([a-z0-9]+)=\'([a-z0-9]+)\'\\]$/i', $node_name, $matches)) {
$node_name = $matches[1];
$attr_name = $matches[2];
$attr_value = $matches[3];
}
$node_path = implode('/', array_slice($path_parts, 0, $i + 1));
if (isset($this->nodes[$node_path])) {
continue;
}
// resolve node namespace
$node_xmlns = ObjectSpec::xmlns($node_ns);
if ($node_xmlns === false) {
throw new Exception(sprintf('unknown namespace: %s', $node_ns));
}
// create node (but don't explicitely define root-node)
if ($node_ns === 'epp') {
$this->nodes[$node_path] = $this->createElementNS($node_xmlns, $node_name);
} else {
$this->nodes[$node_path] = $this->createElementNS($node_xmlns, $node_ns . ':' . $node_name);
}
// set attribute
if ($attr_name !== null && $attr_value !== null) {
$this->nodes[$node_path]->setAttribute($attr_name, $attr_value);
}
// now append node to parent
if ($i === 0) {
$parent = $this;
} else {
$parent = $this->nodes[implode('/', array_slice($path_parts, 0, $i))];
}
$parent->appendChild($this->nodes[$node_path]);
}
return $node_path;
}
