$mod = base64_url_decode($matches[1]);
$exp = base64_url_decode($matches[2]);
- if ($matches[4]) {
+ if (!empty($matches[4])) {
$private_exp = base64_url_decode($matches[4]);
+ } else {
+ $private_exp = false;
}
$params['public_key'] = new Crypt_RSA_KEY($mod, $exp, 'public');
if (!empty($poco)) {
$url = $poco->getPrimaryURL();
- if ($url->type == 'homepage') {
+ if ($url && $url->type == 'homepage') {
$homepage = $url->value;
}
}
$links = call_user_func(array($class, 'discover'), $uri);
if ($link = Discovery::getService($links, Discovery::LRDD_REL)) {
// Load the LRDD XRD
- if ($link['template']) {
+ if (!empty($link['template'])) {
$xrd_uri = Discovery::applyTemplate($link['template'], $uri);
} else {
$xrd_uri = $link['href'];
$xrd = new XRD();
$dom = new DOMDocument();
- $dom->loadXML($xml);
+ if (!$dom->loadXML($xml)) {
+ throw new Exception("Invalid XML");
+ }
$xrd_element = $dom->getElementsByTagName('XRD')->item(0);
// Check for host-meta host
- $host = $xrd_element->getElementsByTagName('Host')->item(0)->nodeValue;
+ $host = $xrd_element->getElementsByTagName('Host')->item(0);
if ($host) {
- $xrd->host = $host;
+ $xrd->host = $host->nodeValue;
}
// Loop through other elements
foreach ($xrd_element->childNodes as $node) {
+ if (!($node instanceof DOMElement)) {
+ continue;
+ }
switch ($node->tagName) {
case 'Expires':
$xrd->expires = $node->nodeValue;