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Asynchronous contact relation check

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This commit is contained in:
Michael 2020-07-29 15:39:45 +00:00
parent dca1fa06bf
commit 4fbec33af0
3 changed files with 115 additions and 45 deletions
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8
src/Model/Contact.php
View file

@ -2075,7 +2075,7 @@ class Contact
* @throws HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
public static function updateFromProbe($id, $network = '', $force = false)
public static function updateFromProbe(int $id, string $network = '', bool $force = false)
{
/*
Warning: Never ever fetch the public key via Probe::uri and write it into the contacts.
@ -2123,6 +2123,10 @@ class Contact
return false;
}
if (ContactRelation::isDiscoverable($ret['url'])) {
Worker::add(PRIORITY_LOW, 'ContactDiscovery', $ret['url']);
}
if (isset($ret['hide']) && is_bool($ret['hide'])) {
$ret['unsearchable'] = $ret['hide'];
}
@ -2147,8 +2151,6 @@ class Contact
GContact::updateFromPublicContactID($id);
}
ContactRelation::discoverByUrl($ret['url']);
$update = false;
// make sure to not overwrite existing values with blank entries except some technical fields

112
src/Model/ContactRelation.php
View file

@ -65,49 +65,16 @@ class ContactRelation
*/
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' => $contact['last-discovery']]);
if (!self::isDiscoverable($url, $contact)) {
return;
}
if ($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' => $contact['created']]);
return;
}
if (in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::OSTATUS])) {
// 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);
}
if (!empty($apcontact['followers']) && is_string($apcontact['followers'])) {
$followers = ActivityPub::fetchItems($apcontact['followers']);
@ -122,6 +89,8 @@ class ContactRelation
}
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;
}
@ -142,20 +111,24 @@ class ContactRelation
}
$contacts = array_unique($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);
$follower_counter++;
}
if (in_array($contact, $followings)) {
$fields = ['cid' => $actor, 'relation-cid' => $target];
DBA::update('contact-relation', ['follows' => true, 'follow-updated' => DateTimeFormat::utcNow()], $fields, true);
$following_counter++;
}
}
}
@ -165,7 +138,66 @@ class ContactRelation
}
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;
}
}

36
src/Worker/ContactDiscovery.php Normal file
View file

@ -0,0 +1,36 @@
<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Worker;
use Friendica\Model\ContactRelation;
class ContactDiscovery
{
/**
* Discover contact relations
* @param string $url
*/
public static function execute(string $url)
{
ContactRelation::discoverByUrl($url);
}
}