public function get_links()
{
if ($this->dom === null) {
throw new SimplePie_Exception('DOMDocument not found, unable to use locator');
}
$links = $this->dom->getElementsByTagName('a');
foreach ($links as $link) {
if ($link->hasAttribute('href')) {
$href = trim($link->getAttribute('href'));
$parsed = $this->registry->call('Misc', 'parse_url', array($href));
if ($parsed['scheme'] === '' || preg_match('/^(https?|feed)?$/i', $parsed['scheme'])) {
if (method_exists($link, 'getLineNo') && $this->base_location < $link->getLineNo()) {
$href = $this->registry->call('Misc', 'absolutize_url', array(trim($link->getAttribute('href')), $this->base));
} else {
$href = $this->registry->call('Misc', 'absolutize_url', array(trim($link->getAttribute('href')), $this->http_base));
}
if ($href === false) {
continue;
}
$current = $this->registry->call('Misc', 'parse_url', array($this->file->url));
if ($parsed['authority'] === '' || $parsed['authority'] === $current['authority']) {
$this->local[] = $href;
} else {
$this->elsewhere[] = $href;
}
}
}
}
$this->local = array_unique($this->local);
$this->elsewhere = array_unique($this->elsewhere);
if (!empty($this->local) || !empty($this->elsewhere)) {
return true;
}
return null;
}