Neos\Neos\Domain\Service\UserService::currentUserCanReadWorkspace PHP Method

    public function currentUserCanReadWorkspace(Workspace $workspace)
    {
        if ($workspace->getName() === 'live') {
            return true;
        }
        if ($workspace->getOwner() === $this->getCurrentUser() || $workspace->getOwner() === null) {
            return true;
        }
        return false;
    }

 /**
  * Returns an array of usage reference objects.
  *
  * @param AssetInterface $asset
  * @return array<\Neos\Neos\Domain\Model\Dto\AssetUsageInNodeProperties>
  * @throws \Neos\ContentRepository\Exception\NodeConfigurationException
  */
 public function getUsageReferences(AssetInterface $asset)
 {
     $assetIdentifier = $this->persistenceManager->getIdentifierByObject($asset);
     if (isset($this->firstlevelCache[$assetIdentifier])) {
         return $this->firstlevelCache[$assetIdentifier];
     }
     $userWorkspace = $this->userService->getPersonalWorkspace();
     $relatedNodes = [];
     foreach ($this->getRelatedNodes($asset) as $relatedNodeData) {
         $accessible = $this->domainUserService->currentUserCanReadWorkspace($relatedNodeData->getWorkspace());
         if ($accessible) {
             $context = $this->createContextMatchingNodeData($relatedNodeData);
         } else {
             $context = $this->createContentContext($userWorkspace->getName());
         }
         $site = $context->getCurrentSite();
         $node = $this->nodeFactory->createFromNodeData($relatedNodeData, $context);
         $flowQuery = new FlowQuery([$node]);
         /** @var \Neos\ContentRepository\Domain\Model\NodeInterface $documentNode */
         $documentNode = $flowQuery->closest('[instanceof Neos.Neos:Document]')->get(0);
         $relatedNodes[] = new AssetUsageInNodeProperties($asset, $site, $documentNode, $node, $accessible);
     }
     $this->firstlevelCache[$assetIdentifier] = $relatedNodes;
     return $this->firstlevelCache[$assetIdentifier];
 }