mirror of https://github.com/friendica/friendica
Merge pull request #8945 from annando/asynchronous-relation
Asynchronous contact relation check
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ddb6029add
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@ -2075,7 +2075,7 @@ class Contact
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* @throws HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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public static function updateFromProbe($id, $network = '', $force = false)
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public static function updateFromProbe(int $id, string $network = '', bool $force = false)
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{
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/*
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Warning: Never ever fetch the public key via Probe::uri and write it into the contacts.
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@ -2123,6 +2123,10 @@ class Contact
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return false;
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}
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if (ContactRelation::isDiscoverable($ret['url'])) {
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Worker::add(PRIORITY_LOW, 'ContactDiscovery', $ret['url']);
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}
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if (isset($ret['hide']) && is_bool($ret['hide'])) {
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$ret['unsearchable'] = $ret['hide'];
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}
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@ -2147,8 +2151,6 @@ class Contact
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GContact::updateFromPublicContactID($id);
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}
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ContactRelation::discoverByUrl($ret['url']);
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$update = false;
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// make sure to not overwrite existing values with blank entries except some technical fields
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@ -65,49 +65,16 @@ class ContactRelation
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*/
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public static function discoverByUrl(string $url)
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{
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$contact_discovery = DI::config()->get('system', 'contact_discovery');
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if ($contact_discovery == self::DISCOVERY_NONE) {
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return;
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}
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$contact = Contact::getByURL($url);
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if (empty($contact)) {
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return;
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}
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if ($contact['last-discovery'] > DateTimeFormat::utc('now - 1 month')) {
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Logger::info('No discovery - Last was less than a month ago.', ['id' => $contact['id'], 'url' => $url, 'discovery' => $contact['last-discovery']]);
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if (!self::isDiscoverable($url, $contact)) {
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return;
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}
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if ($contact_discovery != self::DISCOVERY_ALL) {
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$local = DBA::exists('contact', ["`nurl` = ? AND `uid` != ?", Strings::normaliseLink($url), 0]);
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if (($contact_discovery == self::DISCOVERY_LOCAL) && !$local) {
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Logger::info('No discovery - This contact is not followed/following locally.', ['id' => $contact['id'], 'url' => $url]);
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return;
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}
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if ($contact_discovery == self::DISCOVERY_INTERACTOR) {
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$interactor = DBA::exists('contact-relation', ["`relation-cid` = ? AND `last-interaction` > ?", $contact['id'], DBA::NULL_DATETIME]);
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if (!$local && !$interactor) {
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Logger::info('No discovery - This contact is not interacting locally.', ['id' => $contact['id'], 'url' => $url]);
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return;
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}
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}
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} elseif ($contact['created'] > DateTimeFormat::utc('now - 1 day')) {
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// Newly created contacts are not discovered to avoid DDoS attacks
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Logger::info('No discovery - Contact record is less than a day old.', ['id' => $contact['id'], 'url' => $url, 'discovery' => $contact['created']]);
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return;
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}
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if (in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::OSTATUS])) {
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// The contact is (most likely) speaking AP, so updating is allowed
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$apcontact = APContact::getByURL($url);
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} else {
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// The contact isn't obviously speaking AP, so we don't allow updating
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$apcontact = APContact::getByURL($url, false);
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}
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$apcontact = APContact::getByURL($url, false);
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if (!empty($apcontact['followers']) && is_string($apcontact['followers'])) {
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$followers = ActivityPub::fetchItems($apcontact['followers']);
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@ -122,6 +89,8 @@ class ContactRelation
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}
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if (empty($followers) && empty($followings)) {
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DBA::update('contact', ['last-discovery' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
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Logger::info('The contact does not offer discoverable data', ['id' => $contact['id'], 'url' => $url, 'network' => $contact['network']]);
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return;
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}
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@ -142,20 +111,24 @@ class ContactRelation
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}
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$contacts = array_unique($contacts);
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$follower_counter = 0;
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$following_counter = 0;
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Logger::info('Discover contacts', ['id' => $target, 'url' => $url, 'contacts' => count($contacts)]);
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foreach ($contacts as $contact) {
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$actor = Contact::getIdForURL($contact);
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if (!empty($actor)) {
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$fields = [];
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if (in_array($contact, $followers)) {
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$fields = ['cid' => $target, 'relation-cid' => $actor];
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} elseif (in_array($contact, $followings)) {
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$fields = ['cid' => $actor, 'relation-cid' => $target];
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} else {
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continue;
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DBA::update('contact-relation', ['follows' => true, 'follow-updated' => DateTimeFormat::utcNow()], $fields, true);
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$follower_counter++;
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}
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DBA::update('contact-relation', ['follows' => true, 'follow-updated' => DateTimeFormat::utcNow()], $fields, true);
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if (in_array($contact, $followings)) {
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$fields = ['cid' => $actor, 'relation-cid' => $target];
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DBA::update('contact-relation', ['follows' => true, 'follow-updated' => DateTimeFormat::utcNow()], $fields, true);
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$following_counter++;
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}
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}
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}
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@ -165,7 +138,66 @@ class ContactRelation
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}
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DBA::update('contact', ['last-discovery' => DateTimeFormat::utcNow()], ['id' => $target]);
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Logger::info('Contacts discovery finished, "last-discovery" set', ['id' => $target, 'url' => $url]);
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Logger::info('Contacts discovery finished', ['id' => $target, 'url' => $url, 'follower' => $follower_counter, 'following' => $following_counter]);
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return;
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}
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/**
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* Tests if a given contact url is discoverable
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*
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* @param string $url Contact url
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* @param array $contact Contact array
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* @return boolean True if contact is discoverable
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*/
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public static function isDiscoverable(string $url, array $contact = [])
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{
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$contact_discovery = DI::config()->get('system', 'contact_discovery');
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if ($contact_discovery == self::DISCOVERY_NONE) {
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return false;
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}
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if (empty($contact)) {
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$contact = Contact::getByURL($url);
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}
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if (empty($contact)) {
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return false;
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}
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if ($contact['last-discovery'] > DateTimeFormat::utc('now - 1 month')) {
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Logger::info('No discovery - Last was less than a month ago.', ['id' => $contact['id'], 'url' => $url, 'discovery' => $contact['last-discovery']]);
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return false;
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}
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if ($contact_discovery != self::DISCOVERY_ALL) {
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$local = DBA::exists('contact', ["`nurl` = ? AND `uid` != ?", Strings::normaliseLink($url), 0]);
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if (($contact_discovery == self::DISCOVERY_LOCAL) && !$local) {
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Logger::info('No discovery - This contact is not followed/following locally.', ['id' => $contact['id'], 'url' => $url]);
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return false;
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}
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if ($contact_discovery == self::DISCOVERY_INTERACTOR) {
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$interactor = DBA::exists('contact-relation', ["`relation-cid` = ? AND `last-interaction` > ?", $contact['id'], DBA::NULL_DATETIME]);
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if (!$local && !$interactor) {
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Logger::info('No discovery - This contact is not interacting locally.', ['id' => $contact['id'], 'url' => $url]);
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return false;
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}
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}
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} elseif ($contact['created'] > DateTimeFormat::utc('now - 1 day')) {
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// Newly created contacts are not discovered to avoid DDoS attacks
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Logger::info('No discovery - Contact record is less than a day old.', ['id' => $contact['id'], 'url' => $url, 'discovery' => $contact['created']]);
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return false;
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}
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if (!in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::OSTATUS])) {
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$apcontact = APContact::getByURL($url, false);
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if (empty($apcontact)) {
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Logger::info('No discovery - The contact does not seem to speak ActivityPub.', ['id' => $contact['id'], 'url' => $url, 'network' => $contact['network']]);
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return false;
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}
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}
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return true;
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}
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}
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@ -0,0 +1,36 @@
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<?php
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/**
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* @copyright Copyright (C) 2020, Friendica
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Worker;
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use Friendica\Model\ContactRelation;
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class ContactDiscovery
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{
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/**
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* Discover contact relations
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* @param string $url
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*/
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public static function execute(string $url)
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{
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ContactRelation::discoverByUrl($url);
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}
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}
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