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<?php |
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declare(strict_types=1); |
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/** |
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* Circles - Bring cloud-users closer together. |
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* |
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* This file is licensed under the Affero General Public License version 3 or |
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* later. See the COPYING file. |
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* |
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* @author Maxence Lange <[email protected]> |
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* @copyright 2021 |
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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 <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OCA\Circles\Service; |
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use daita\MySmallPhpTools\ActivityPub\Nextcloud\nc22\NC22Signature; |
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use daita\MySmallPhpTools\Exceptions\RequestNetworkException; |
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use daita\MySmallPhpTools\Model\Nextcloud\nc22\NC22Request; |
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use daita\MySmallPhpTools\Model\Request; |
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use daita\MySmallPhpTools\Traits\Nextcloud\nc22\TNC22Request; |
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use daita\MySmallPhpTools\Traits\TStringTools; |
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use OC; |
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use OCA\Circles\Db\EventWrapperRequest; |
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use OCA\Circles\Db\MemberRequest; |
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use OCA\Circles\Db\RemoteRequest; |
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use OCA\Circles\Db\ShareLockRequest; |
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use OCA\Circles\Exceptions\FederatedEventException; |
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use OCA\Circles\Exceptions\FederatedItemException; |
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use OCA\Circles\Exceptions\FederatedShareBelongingException; |
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use OCA\Circles\Exceptions\FederatedShareNotFoundException; |
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use OCA\Circles\Exceptions\InitiatorNotConfirmedException; |
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use OCA\Circles\Exceptions\JsonException; |
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use OCA\Circles\Exceptions\ModelException; |
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use OCA\Circles\Exceptions\OwnerNotFoundException; |
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use OCA\Circles\Exceptions\RemoteInstanceException; |
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use OCA\Circles\Exceptions\RemoteNotFoundException; |
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use OCA\Circles\Exceptions\RemoteResourceNotFoundException; |
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use OCA\Circles\Exceptions\RequestBuilderException; |
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use OCA\Circles\Exceptions\UnknownRemoteException; |
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use OCA\Circles\IFederatedItem; |
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use OCA\Circles\IFederatedItemAsyncProcess; |
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use OCA\Circles\IFederatedItemCircleCheckNotRequired; |
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use OCA\Circles\IFederatedItemDataRequestOnly; |
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use OCA\Circles\IFederatedItemInitiatorCheckNotRequired; |
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use OCA\Circles\IFederatedItemInitiatorMembershipNotRequired; |
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use OCA\Circles\IFederatedItemLimitedToInstanceWithMembership; |
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use OCA\Circles\IFederatedItemMemberCheckNotRequired; |
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use OCA\Circles\IFederatedItemMemberEmpty; |
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use OCA\Circles\IFederatedItemMemberOptional; |
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use OCA\Circles\IFederatedItemMemberRequired; |
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use OCA\Circles\IFederatedItemMustBeInitializedLocally; |
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use OCA\Circles\IFederatedItemSharedItem; |
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use OCA\Circles\Model\Circle; |
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use OCA\Circles\Model\Federated\EventWrapper; |
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use OCA\Circles\Model\Federated\FederatedEvent; |
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use OCA\Circles\Model\Federated\RemoteInstance; |
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use OCA\Circles\Model\Member; |
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use OCP\IL10N; |
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use ReflectionClass; |
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use ReflectionException; |
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/** |
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* Class FederatedEventService |
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* |
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* @package OCA\Circles\Service |
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*/ |
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class FederatedEventService extends NC22Signature { |
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use TNC22Request; |
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use TStringTools; |
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/** @var IL10N */ |
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private $l10n; |
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/** @var EventWrapperRequest */ |
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private $eventWrapperRequest; |
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/** @var RemoteRequest */ |
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private $remoteRequest; |
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/** @var ShareLockRequest */ |
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private $shareLockRequest; |
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/** @var MemberRequest */ |
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private $memberRequest; |
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/** @var RemoteUpstreamService */ |
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private $remoteUpstreamService; |
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/** @var ConfigService */ |
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private $configService; |
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/** @var MiscService */ |
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private $miscService; |
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/** |
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* FederatedEventService constructor. |
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* |
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* @param IL10N $l10n |
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* @param EventWrapperRequest $eventWrapperRequest |
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* @param RemoteRequest $remoteRequest |
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* @param MemberRequest $memberRequest |
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* @param ShareLockRequest $shareLockRequest |
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* @param RemoteUpstreamService $remoteUpstreamService |
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* @param ConfigService $configService |
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*/ |
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public function __construct( |
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IL10N $l10n, EventWrapperRequest $eventWrapperRequest, RemoteRequest $remoteRequest, |
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MemberRequest $memberRequest, ShareLockRequest $shareLockRequest, |
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RemoteUpstreamService $remoteUpstreamService, |
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ConfigService $configService |
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) { |
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$this->l10n = $l10n; |
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$this->eventWrapperRequest = $eventWrapperRequest; |
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$this->remoteRequest = $remoteRequest; |
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$this->shareLockRequest = $shareLockRequest; |
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$this->memberRequest = $memberRequest; |
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$this->remoteUpstreamService = $remoteUpstreamService; |
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$this->configService = $configService; |
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} |
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/** |
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* Called when creating a new Event. |
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* This method will manage the event locally and upstream the payload if needed. |
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* |
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* @param FederatedEvent $event |
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* |
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* @return array |
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* @throws FederatedEventException |
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* @throws FederatedItemException |
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* @throws InitiatorNotConfirmedException |
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* @throws OwnerNotFoundException |
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* @throws RemoteNotFoundException |
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* @throws RemoteResourceNotFoundException |
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* @throws UnknownRemoteException |
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* @throws RemoteInstanceException |
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*/ |
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public function newEvent(FederatedEvent $event): array { |
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$event->setSource($this->configService->getFrontalInstance()); |
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$federatedItem = $this->getFederatedItem($event, false); |
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$this->confirmInitiator($event, true); |
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if ($this->configService->isLocalInstance($event->getCircle()->getInstance())) { |
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$event->setIncomingOrigin($event->getCircle()->getInstance()); |
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$federatedItem->verify($event); |
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if ($event->isDataRequestOnly()) { |
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return $event->getOutcome(); |
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} |
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if (!$event->isAsync()) { |
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$federatedItem->manage($event); |
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} |
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$this->initBroadcast($event); |
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} else { |
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$this->remoteUpstreamService->confirmEvent($event); |
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if ($event->isDataRequestOnly()) { |
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return $event->getOutcome(); |
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} |
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// if (!$event->isAsync()) { |
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// $federatedItem->manage($event); |
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// } |
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} |
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return $event->getOutcome(); |
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} |
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/** |
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* This confirmation is optional, method is just here to avoid going too far away on the process |
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* |
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* @param FederatedEvent $event |
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* @param bool $local |
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* |
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* @throws InitiatorNotConfirmedException |
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*/ |
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public function confirmInitiator(FederatedEvent $event, bool $local = false): void { |
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if ($event->canBypass(FederatedEvent::BYPASS_INITIATORCHECK)) { |
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return; |
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} |
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$circle = $event->getCircle(); |
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if (!$circle->hasInitiator()) { |
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throw new InitiatorNotConfirmedException('Initiator does not exist'); |
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} |
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if ($local) { |
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if (!$this->configService->isLocalInstance($circle->getInitiator()->getInstance())) { |
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throw new InitiatorNotConfirmedException( |
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'Initiator is not from the instance at the origin of the request' |
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); |
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} |
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} else { |
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if ($circle->getInitiator()->getInstance() !== $event->getIncomingOrigin()) { |
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throw new InitiatorNotConfirmedException( |
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'Initiator must belong to the instance at the origin of the request' |
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); |
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} |
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} |
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if (!$event->canBypass(FederatedEvent::BYPASS_INITIATORMEMBERSHIP) |
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&& $circle->getInitiator()->getLevel() < Member::LEVEL_MEMBER) { |
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throw new InitiatorNotConfirmedException('Initiator must be a member of the Circle'); |
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} |
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} |
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/** |
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* @param FederatedEvent $event |
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* @param bool $checkLocalOnly |
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* |
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* @return IFederatedItem |
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* @throws FederatedEventException |
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*/ |
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public function getFederatedItem(FederatedEvent $event, bool $checkLocalOnly = true): IFederatedItem { |
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$class = $event->getClass(); |
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try { |
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$test = new ReflectionClass($class); |
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} catch (ReflectionException $e) { |
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throw new FederatedEventException('ReflectionException with ' . $class . ': ' . $e->getMessage()); |
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} |
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if (!in_array(IFederatedItem::class, $test->getInterfaceNames())) { |
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throw new FederatedEventException($class . ' does not implements IFederatedItem'); |
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} |
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$item = OC::$server->get($class); |
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if (!($item instanceof IFederatedItem)) { |
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throw new FederatedEventException($class . ' not an IFederatedItem'); |
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} |
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$this->setFederatedEventBypass($event, $item); |
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$this->confirmRequiredCondition($event, $item, $checkLocalOnly); |
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$this->configureEvent($event, $item); |
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// $this->confirmSharedItem($event, $item); |
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return $item; |
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} |
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/** |
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* Some event might need to bypass some checks |
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* |
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* @param FederatedEvent $event |
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* @param IFederatedItem $item |
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*/ |
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private function setFederatedEventBypass(FederatedEvent $event, IFederatedItem $item) { |
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if ($item instanceof IFederatedItemCircleCheckNotRequired) { |
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$event->bypass(FederatedEvent::BYPASS_LOCALCIRCLECHECK); |
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} |
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if ($item instanceof IFederatedItemMemberCheckNotRequired) { |
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$event->bypass(FederatedEvent::BYPASS_LOCALMEMBERCHECK); |
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} |
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if ($item instanceof IFederatedItemInitiatorCheckNotRequired) { |
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$event->bypass(FederatedEvent::BYPASS_INITIATORCHECK); |
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} |
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if ($item instanceof IFederatedItemInitiatorMembershipNotRequired) { |
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$event->bypass(FederatedEvent::BYPASS_INITIATORMEMBERSHIP); |
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} |
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} |
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/** |
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* Some event might require additional check |
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* |
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* @param FederatedEvent $event |
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* @param IFederatedItem $item |
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* @param bool $checkLocalOnly |
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* |
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* @throws FederatedEventException |
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*/ |
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private function confirmRequiredCondition( |
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FederatedEvent $event, |
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IFederatedItem $item, |
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bool $checkLocalOnly = true |
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) { |
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if (!$event->hasCircle()) { |
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throw new FederatedEventException('FederatedEvent has no Circle linked'); |
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} |
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// TODO: enforce IFederatedItemMemberEmpty if no member |
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if ($item instanceof IFederatedItemMemberEmpty) { |
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$event->setMember(null); |
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} else if ($item instanceof IFederatedItemMemberRequired && !$event->hasMember()) { |
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throw new FederatedEventException('FederatedEvent has no Member linked'); |
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} |
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if ($event->hasMember() |
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&& !($item instanceof IFederatedItemMemberRequired) |
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&& !($item instanceof IFederatedItemMemberOptional)) { |
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throw new FederatedEventException( |
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get_class($item) |
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. ' does not implements IFederatedItemMemberOptional nor IFederatedItemMemberRequired' |
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); |
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} |
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if ($item instanceof IFederatedItemMustBeInitializedLocally && $checkLocalOnly) { |
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throw new FederatedEventException('FederatedItem must be executed locally'); |
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} |
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} |
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/** |
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* @param FederatedEvent $event |
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* @param IFederatedItem $item |
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* |
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* @throws FederatedEventException |
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* @throws FederatedShareBelongingException |
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* @throws FederatedShareNotFoundException |
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* @throws OwnerNotFoundException |
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*/ |
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private function confirmSharedItem(FederatedEvent $event, IFederatedItem $item): void { |
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if (!$item instanceof IFederatedItemSharedItem) { |
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return; |
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} |
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if ($event->getItemId() === '') { |
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throw new FederatedEventException('FederatedItem must contains ItemId'); |
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} |
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if ($this->configService->isLocalInstance($event->getCircle()->getInstance())) { |
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$shareLock = $this->shareLockRequest->getShare($event->getItemId()); |
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if ($shareLock->getInstance() !== $event->getIncomingOrigin()) { |
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throw new FederatedShareBelongingException('ShareLock belongs to another instance'); |
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} |
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} |
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} |
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/** |
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* @param FederatedEvent $event |
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* @param IFederatedItem $item |
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*/ |
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|
|
private function configureEvent(FederatedEvent $event, IFederatedItem $item) { |
362
|
|
|
if ($item instanceof IFederatedItemAsyncProcess) { |
363
|
|
|
$event->setAsync(true); |
364
|
|
|
} |
365
|
|
|
if ($item instanceof IFederatedItemLimitedToInstanceWithMembership) { |
366
|
|
|
$event->setLimitedToInstanceWithMember(true); |
367
|
|
|
} |
368
|
|
|
if ($item instanceof IFederatedItemDataRequestOnly) { |
369
|
|
|
$event->setDataRequestOnly(true); |
370
|
|
|
} |
371
|
|
|
} |
372
|
|
|
|
373
|
|
|
|
374
|
|
|
/** |
375
|
|
|
* async the process, generate a local request that will be closed. |
376
|
|
|
* |
377
|
|
|
* @param FederatedEvent $event |
378
|
|
|
* @param array $filter |
379
|
|
|
*/ |
380
|
|
|
public function initBroadcast(FederatedEvent $event, array $filter = []): void { |
381
|
|
|
$instances = array_diff($this->getInstances($event), $filter); |
382
|
|
|
if (empty($instances)) { |
383
|
|
|
return; |
384
|
|
|
} |
385
|
|
|
|
386
|
|
|
$wrapper = new EventWrapper(); |
387
|
|
|
$wrapper->setEvent($event); |
388
|
|
|
$wrapper->setToken($this->uuid()); |
389
|
|
|
$wrapper->setCreation(time()); |
390
|
|
|
$wrapper->setSeverity($event->getSeverity()); |
391
|
|
|
|
392
|
|
|
$circle = $event->getCircle(); |
393
|
|
|
foreach ($instances as $instance) { |
394
|
|
|
if ($circle->isConfig(Circle::CFG_LOCAL) && !$this->configService->isLocalInstance($instance)) { |
395
|
|
|
continue; |
396
|
|
|
} |
397
|
|
|
|
398
|
|
|
$wrapper->setInstance($instance); |
399
|
|
|
$this->eventWrapperRequest->create($wrapper); |
400
|
|
|
} |
401
|
|
|
|
402
|
|
|
$request = new NC22Request('', Request::TYPE_POST); |
403
|
|
|
$this->configService->configureRequest( |
404
|
|
|
$request, 'circles.EventWrapper.asyncBroadcast', ['token' => $wrapper->getToken()] |
405
|
|
|
); |
406
|
|
|
|
407
|
|
|
$event->setWrapperToken($wrapper->getToken()); |
408
|
|
|
|
409
|
|
|
try { |
410
|
|
|
$this->doRequest($request); |
411
|
|
|
} catch (RequestNetworkException $e) { |
412
|
|
|
$this->e($e, ['wrapper' => $wrapper]); |
413
|
|
|
} |
414
|
|
|
} |
415
|
|
|
|
416
|
|
|
|
417
|
|
|
/** |
418
|
|
|
* @param FederatedEvent $event |
419
|
|
|
* |
420
|
|
|
* @return array |
421
|
|
|
* @throws RequestBuilderException |
422
|
|
|
*/ |
423
|
|
|
public function getInstances(FederatedEvent $event): array { |
424
|
|
|
$local = $this->configService->getFrontalInstance(); |
425
|
|
|
|
426
|
|
|
$circle = $event->getCircle(); |
427
|
|
|
$instances = array_map( |
428
|
|
|
function(RemoteInstance $instance): string { |
429
|
|
|
return $instance->getInstance(); |
430
|
|
|
}, |
431
|
|
|
$this->remoteRequest->getOutgoingRecipient( |
432
|
|
|
$circle, |
433
|
|
|
$event->getData()->gBool('broadcastAsFederated') |
434
|
|
|
) |
435
|
|
|
); |
436
|
|
|
|
437
|
|
|
if ($event->isLimitedToInstanceWithMember()) { |
438
|
|
|
$instances = |
439
|
|
|
array_intersect( |
440
|
|
|
$instances, $this->memberRequest->getMemberInstances($circle->getSingleId()) |
441
|
|
|
); |
442
|
|
|
} |
443
|
|
|
|
444
|
|
|
if ($event->hasMember() |
445
|
|
|
&& !$this->configService->isLocalInstance(($event->getMember()->getInstance())) |
446
|
|
|
&& !in_array($event->getMember()->getInstance(), $instances)) { |
447
|
|
|
// At that point, we know that the member belongs to a _known_ remote instance |
448
|
|
|
$instances[] = $event->getMember()->getInstance(); |
449
|
|
|
} |
450
|
|
|
|
451
|
|
|
$instances = array_merge([$local], $instances); |
452
|
|
|
|
453
|
|
|
if ($event->isAsync()) { |
454
|
|
|
return $instances; |
455
|
|
|
} |
456
|
|
|
|
457
|
|
|
return array_values( |
458
|
|
|
array_diff($instances, array_merge($this->configService->getTrustedDomains(), [$local])) |
459
|
|
|
); |
460
|
|
|
} |
461
|
|
|
|
462
|
|
|
|
463
|
|
|
/** |
464
|
|
|
* @param array $current |
465
|
|
|
*/ |
466
|
|
|
private function updateGlobalScaleInstances(array $current): void { |
|
|
|
|
467
|
|
|
// $known = $this->remoteRequest->getFromType(RemoteInstance::TYPE_GLOBAL_SCALE); |
468
|
|
|
} |
469
|
|
|
|
470
|
|
|
/** |
471
|
|
|
* @return array |
472
|
|
|
*/ |
473
|
|
|
private function getRemoteInstances(): array { |
474
|
|
|
return []; |
475
|
|
|
} |
476
|
|
|
|
477
|
|
|
|
478
|
|
|
/** |
479
|
|
|
* should be used to manage results from events, like sending mails on user creation |
480
|
|
|
* |
481
|
|
|
* @param string $token |
482
|
|
|
*/ |
483
|
|
|
public function manageResults(string $token): void { |
484
|
|
|
try { |
485
|
|
|
$wrappers = $this->eventWrapperRequest->getByToken($token); |
486
|
|
|
} catch (JsonException | ModelException $e) { |
487
|
|
|
return; |
488
|
|
|
} |
489
|
|
|
|
490
|
|
|
$event = null; |
491
|
|
|
$results = []; |
492
|
|
|
foreach ($wrappers as $wrapper) { |
493
|
|
|
if ($wrapper->getStatus() !== EventWrapper::STATUS_DONE) { |
494
|
|
|
return; |
495
|
|
|
} |
496
|
|
|
|
497
|
|
|
if (is_null($event)) { |
498
|
|
|
$event = $wrapper->getEvent(); |
499
|
|
|
} |
500
|
|
|
|
501
|
|
|
$results[$wrapper->getInstance()] = $wrapper->getResult(); |
502
|
|
|
} |
503
|
|
|
|
504
|
|
|
if (is_null($event)) { |
505
|
|
|
return; |
506
|
|
|
} |
507
|
|
|
|
508
|
|
|
try { |
509
|
|
|
$gs = $this->getFederatedItem($event, false); |
510
|
|
|
$gs->result($event, $results); |
511
|
|
|
} catch (FederatedEventException $e) { |
|
|
|
|
512
|
|
|
} |
513
|
|
|
} |
514
|
|
|
|
515
|
|
|
} |
516
|
|
|
|
517
|
|
|
|
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.