*/
public static function discoverByUrl(string $url)
{
- $contact_discovery = DI::config()->get('system', 'contact_discovery');
-
- if ($contact_discovery == self::DISCOVERY_NONE) {
- return;
- }
-
$contact = Contact::getByURL($url);
if (empty($contact)) {
return;
}
- if ($contact['last-discovery'] > DateTimeFormat::utc('now - 1 month')) {
- Logger::info('No discovery - Last was less than a month ago.', ['id' => $contact['id'], 'url' => $url, 'discovery' => $contact['last-discovery']]);
- return;
- }
-
- if ($contact_discovery != self::DISCOVERY_ALL) {
- $local = DBA::exists('contact', ["`nurl` = ? AND `uid` != ?", Strings::normaliseLink($url), 0]);
- if (($contact_discovery == self::DISCOVERY_LOCAL) && !$local) {
- Logger::info('No discovery - This contact is not followed/following locally.', ['id' => $contact['id'], 'url' => $url]);
- return;
- }
-
- if ($contact_discovery == self::DISCOVERY_INTERACTOR) {
- $interactor = DBA::exists('contact-relation', ["`relation-cid` = ? AND `last-interaction` > ?", $contact['id'], DBA::NULL_DATETIME]);
- if (!$local && !$interactor) {
- Logger::info('No discovery - This contact is not interacting locally.', ['id' => $contact['id'], 'url' => $url]);
- return;
- }
- }
- } elseif ($contact['created'] > DateTimeFormat::utc('now - 1 day')) {
- // Newly created contacts are not discovered to avoid DDoS attacks
- Logger::info('No discovery - Contact record is less than a day old.', ['id' => $contact['id'], 'url' => $url, 'discovery' => $contact['created']]);
+ if (!self::isDiscoverable($url, $contact)) {
return;
}
- if (in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
- // The contact is (most likely) speaking AP, so updating is allowed
- $apcontact = APContact::getByURL($url);
- } else {
- // The contact isn't obviously speaking AP, so we don't allow updating
- $apcontact = APContact::getByURL($url, false);
- }
+ $apcontact = APContact::getByURL($url, false);
if (!empty($apcontact['followers']) && is_string($apcontact['followers'])) {
$followers = ActivityPub::fetchItems($apcontact['followers']);
}
if (empty($followers) && empty($followings)) {
+ DBA::update('contact', ['last-discovery' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
+ Logger::info('The contact does not offer discoverable data', ['id' => $contact['id'], 'url' => $url, 'network' => $contact['network']]);
return;
}
}
$contacts = array_unique($contacts);
+ $follower_counter = 0;
+ $following_counter = 0;
+
Logger::info('Discover contacts', ['id' => $target, 'url' => $url, 'contacts' => count($contacts)]);
foreach ($contacts as $contact) {
$actor = Contact::getIdForURL($contact);
if (!empty($actor)) {
- $fields = [];
if (in_array($contact, $followers)) {
$fields = ['cid' => $target, 'relation-cid' => $actor];
- } elseif (in_array($contact, $followings)) {
- $fields = ['cid' => $actor, 'relation-cid' => $target];
- } else {
- continue;
+ DBA::update('contact-relation', ['follows' => true, 'follow-updated' => DateTimeFormat::utcNow()], $fields, true);
+ $follower_counter++;
}
- DBA::update('contact-relation', ['follows' => true, 'follow-updated' => DateTimeFormat::utcNow()], $fields, true);
+ if (in_array($contact, $followings)) {
+ $fields = ['cid' => $actor, 'relation-cid' => $target];
+ DBA::update('contact-relation', ['follows' => true, 'follow-updated' => DateTimeFormat::utcNow()], $fields, true);
+ $following_counter++;
+ }
}
}
}
DBA::update('contact', ['last-discovery' => DateTimeFormat::utcNow()], ['id' => $target]);
- Logger::info('Contacts discovery finished, "last-discovery" set', ['id' => $target, 'url' => $url]);
+ Logger::info('Contacts discovery finished', ['id' => $target, 'url' => $url, 'follower' => $follower_counter, 'following' => $following_counter]);
return;
}
+
+ /**
+ * Tests if a given contact url is discoverable
+ *
+ * @param string $url Contact url
+ * @param array $contact Contact array
+ * @return boolean True if contact is discoverable
+ */
+ public static function isDiscoverable(string $url, array $contact = [])
+ {
+ $contact_discovery = DI::config()->get('system', 'contact_discovery');
+
+ if ($contact_discovery == self::DISCOVERY_NONE) {
+ return false;
+ }
+
+ if (empty($contact)) {
+ $contact = Contact::getByURL($url);
+ }
+
+ if (empty($contact)) {
+ return false;
+ }
+
+ if ($contact['last-discovery'] > DateTimeFormat::utc('now - 1 month')) {
+ Logger::info('No discovery - Last was less than a month ago.', ['id' => $contact['id'], 'url' => $url, 'discovery' => $contact['last-discovery']]);
+ return false;
+ }
+
+ if ($contact_discovery != self::DISCOVERY_ALL) {
+ $local = DBA::exists('contact', ["`nurl` = ? AND `uid` != ?", Strings::normaliseLink($url), 0]);
+ if (($contact_discovery == self::DISCOVERY_LOCAL) && !$local) {
+ Logger::info('No discovery - This contact is not followed/following locally.', ['id' => $contact['id'], 'url' => $url]);
+ return false;
+ }
+
+ if ($contact_discovery == self::DISCOVERY_INTERACTOR) {
+ $interactor = DBA::exists('contact-relation', ["`relation-cid` = ? AND `last-interaction` > ?", $contact['id'], DBA::NULL_DATETIME]);
+ if (!$local && !$interactor) {
+ Logger::info('No discovery - This contact is not interacting locally.', ['id' => $contact['id'], 'url' => $url]);
+ return false;
+ }
+ }
+ } elseif ($contact['created'] > DateTimeFormat::utc('now - 1 day')) {
+ // Newly created contacts are not discovered to avoid DDoS attacks
+ Logger::info('No discovery - Contact record is less than a day old.', ['id' => $contact['id'], 'url' => $url, 'discovery' => $contact['created']]);
+ return false;
+ }
+
+ if (!in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::OSTATUS])) {
+ $apcontact = APContact::getByURL($url, false);
+ if (empty($apcontact)) {
+ Logger::info('No discovery - The contact does not seem to speak ActivityPub.', ['id' => $contact['id'], 'url' => $url, 'network' => $contact['network']]);
+ return false;
+ }
+ }
+
+ return true;
+ }
}
projects / friendica.git / blobdiff