public static function parse($extUrl, $ownUrl)
{
$mf = \Mf2\fetch($extUrl);
$entry = null;
foreach ($mf['items'] as $item) {
if (in_array('h-entry', $item['type'])) {
if (isset($entry)) {
throw new \Exception("Page is expected to have only a single entry.");
}
$entry = $item['properties'];
}
}
if (!isset($entry)) {
throw new \Exception("Page is expected to have an MF2-marked up entry.");
}
if (isset($entry['repost-of'])) {
// Repost
foreach ($entry['repost-of'] as $r) {
if (is_string($r) && $r == $ownUrl) {
return new ExternalPost(ExternalPost::TYPE_REPOST, $extUrl, self::parseAuthor($entry));
}
}
} else {
if (isset($entry['in-reply-to'])) {
// Reply
foreach ($entry['in-reply-to'] as $r) {
if (is_string($r) && $r == $ownUrl) {
return new ExternalPost(ExternalPost::TYPE_REPLY, $extUrl, self::parseAuthor($entry));
}
if (is_array($r) && isset($r['properties']) && isset($r['properties']['url']) && isset($r['properties']['url']) == $ownUrl) {
return new ExternalPost(ExternalPost::TYPE_REPLY, $extUrl, self::parseAuthor($entry));
}
}
} else {
if (isset($entry['like-of'])) {
// Like
foreach ($entry['like-of'] as $r) {
if (is_string($r) && $r == $ownUrl) {
return new ExternalPost(ExternalPost::TYPE_LIKE, $extUrl, self::parseAuthor($entry));
}
if (is_array($r) && isset($r['properties']) && isset($r['properties']['url']) && isset($r['properties']['url']) == $ownUrl) {
return new ExternalPost(ExternalPost::TYPE_LIKE, $extUrl, self::parseAuthor($entry));
}
}
}
}
}
throw new \Exception("No related post found on the URL.");
}
public function start()
{
$src = get('source');
$target = get('target');
if (!v::url($src)) {
throw new Exception('Invalid source');
}
if (!v::url($target)) {
throw new Exception('Invalid target');
}
if (!str::contains($target, site()->url())) {
throw new Exception('Invalid target');
}
require_once dirname(__DIR__) . DS . 'vendor' . DS . 'mf2.php';
require_once dirname(__DIR__) . DS . 'vendor' . DS . 'comments.php';
$data = \Mf2\fetch($src);
$result = \IndieWeb\comments\parse($data['items'][0], $src);
if (empty($result)) {
throw new Exception('Probably spam');
}
$path = ltrim(str_replace(site()->url(), '', $target), '/');
if (!empty($path) and $page = page($path)) {
if (!empty($result['published'])) {
$time = strtotime($result['published']);
} else {
$time = time();
$result['published'] = date('c');
}
$json = json_encode($result);
$hash = sha1($json);
$file = $page->root() . DS . '.webmentions' . DS . $time . '-' . $hash . '.json';
f::write($file, $json);
return true;
} else {
throw new Exception('Invalid page');
}
}
private function parse($url)
{
return Mf2\fetch($url);
}
/**
* Checks HTML code to find a representative hCard
*
* @return string|null the hCard or null
*/
public function getRepresentativeHCard()
{
foreach ($this->react as $link) {
if (in_array($link->rel, array("http://microformats.org/profile/hcard", "http://webfinger.net/rel/profile-page"))) {
$mfs = \Mf2\fetch($link->href);
if ($mfs && ($hCard = \BarnabyWalters\Mf2\getRepresentativeHCard($mfs, $link->href))) {
return $hCard;
}
}
}
return null;
}
