Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file src/Model/APContact.php
*/
namespace Friendica\Model;
use Friendica\BaseObject;
use Friendica\Content\Text\HTML;
use Friendica\Core\Logger;
use Friendica\Database\DBA;
use Friendica\Protocol\ActivityPub;
use Friendica\Util\Network;
use Friendica\Util\JsonLD;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Strings;
require_once 'boot.php';
class APContact extends BaseObject
{
/**
* Resolves the profile url from the address by using webfinger
*
* @param string $addr profile address (user@domain.tld)
* @return string url
*/
private static function addrToUrl($addr)
{
$addr_parts = explode('@', $addr);
if (count($addr_parts) != 2) {
return false;
}
$webfinger = 'https://' . $addr_parts[1] . '/.well-known/webfinger?resource=acct:' . urlencode($addr);
$curlResult = Network::curl($webfinger, false, $redirects, ['accept_content' => 'application/jrd+json,application/json']);
if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
return false;
}
$data = json_decode($curlResult->getBody(), true);
if (empty($data['links'])) {
return false;
}
foreach ($data['links'] as $link) {
if (empty($link['href']) || empty($link['rel']) || empty($link['type'])) {
continue;
}
if (($link['rel'] == 'self') && ($link['type'] == 'application/activity+json')) {
return $link['href'];
}
}
return false;
}
/**
* Fetches a profile from a given url
*
* @param string $url profile url
* @param boolean $update true = always update, false = never update, null = update when not found
* @return array profile array
*/
public static function getByURL($url, $update = null)
{
if (empty($url)) {
return false;
}
if (empty($update)) {
$apcontact = DBA::selectFirst('apcontact', [], ['url' => $url]);
if (DBA::isResult($apcontact)) {
return $apcontact;
}
$apcontact = DBA::selectFirst('apcontact', [], ['alias' => $url]);
if (DBA::isResult($apcontact)) {
return $apcontact;
}
$apcontact = DBA::selectFirst('apcontact', [], ['addr' => $url]);
if (DBA::isResult($apcontact)) {
return $apcontact;
}
if (!is_null($update)) {
return false;
}
}
if (empty(parse_url($url, PHP_URL_SCHEME))) {
$url = self::addrToUrl($url);
if (empty($url)) {
return false;
}
}
$data = ActivityPub::fetchContent($url);
if (empty($data)) {
return false;
}
$compacted = JsonLD::compact($data);
if (empty($compacted['@id'])) {
return false;
}
$apcontact = [];
$apcontact['url'] = $compacted['@id'];
$apcontact['uuid'] = JsonLD::fetchElement($compacted, 'diaspora:guid');
$apcontact['type'] = str_replace('as:', '', JsonLD::fetchElement($compacted, '@type'));
$apcontact['following'] = JsonLD::fetchElement($compacted, 'as:following', '@id');
$apcontact['followers'] = JsonLD::fetchElement($compacted, 'as:followers', '@id');
$apcontact['inbox'] = JsonLD::fetchElement($compacted, 'ldp:inbox', '@id');
$apcontact['outbox'] = JsonLD::fetchElement($compacted, 'as:outbox', '@id');
$apcontact['sharedinbox'] = '';
if (!empty($compacted['as:endpoints'])) {
$apcontact['sharedinbox'] = JsonLD::fetchElement($compacted['as:endpoints'], 'as:sharedInbox', '@id');
}
$apcontact['nick'] = JsonLD::fetchElement($compacted, 'as:preferredUsername');
$apcontact['name'] = JsonLD::fetchElement($compacted, 'as:name');
if (empty($apcontact['name'])) {
$apcontact['name'] = $apcontact['nick'];
}
$apcontact['about'] = HTML::toBBCode(JsonLD::fetchElement($compacted, 'as:summary'));
$apcontact['photo'] = JsonLD::fetchElement($compacted, 'as:icon', '@id');
if (is_array($apcontact['photo'])) {
$apcontact['photo'] = JsonLD::fetchElement($compacted['as:icon'], 'as:url', '@id');
}
$apcontact['alias'] = JsonLD::fetchElement($compacted, 'as:url', '@id');
if (is_array($apcontact['alias'])) {
$apcontact['alias'] = JsonLD::fetchElement($compacted['as:url'], 'as:href', '@id');
}
if (empty($apcontact['url']) || empty($apcontact['inbox'])) {
return false;
}
$parts = parse_url($apcontact['url']);
unset($parts['scheme']);
unset($parts['path']);
$apcontact['addr'] = $apcontact['nick'] . '@' . str_replace('//', '', Network::unparseURL($parts));
$apcontact['pubkey'] = trim(JsonLD::fetchElement($compacted, 'w3id:publicKey', 'w3id:publicKeyPem'));
// To-Do
// manuallyApprovesFollowers
// Unhandled
// @context, tag, attachment, image, nomadicLocations, signature, following, followers, featured, movedTo, liked
// Unhandled from Misskey
// sharedInbox, isCat
// Unhandled from Kroeg
// kroeg:blocks, updated
// Check if the address is resolvable
if (self::addrToUrl($apcontact['addr']) == $apcontact['url']) {
$parts = parse_url($apcontact['url']);
unset($parts['path']);
$apcontact['baseurl'] = Network::unparseURL($parts);
} else {
$apcontact['addr'] = null;
$apcontact['baseurl'] = null;
}
if ($apcontact['url'] == $apcontact['alias']) {
$apcontact['alias'] = null;
}
$apcontact['updated'] = DateTimeFormat::utcNow();
DBA::update('apcontact', $apcontact, ['url' => $url], true);
// Update some data in the contact table with various ways to catch them all
$contact_fields = ['name' => $apcontact['name'], 'about' => $apcontact['about']];
DBA::update('contact', $contact_fields, ['nurl' => Strings::normaliseLink($url)]);
$contacts = DBA::select('contact', ['uid', 'id'], ['nurl' => Strings::normaliseLink($url)]);
while ($contact = DBA::fetch($contacts)) {
Contact::updateAvatar($apcontact['photo'], $contact['uid'], $contact['id']);
}
DBA::close($contacts);
// Update the gcontact table
DBA::update('gcontact', $contact_fields, ['nurl' => Strings::normaliseLink($url)]);
Logger::log('Updated profile for ' . $url, Logger::DEBUG);
return $apcontact;
}
}