node_view_access/node_view_access.module at master · willzyx-dev/node_view_access · GitHub

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<?php

/**
 * @file
 * Main functions and hook implementations of the node_view_access module.
 *
 * Enables permissions "View own content" and "View any content" for each
 * content type on permissions page.
 */

use Drupal\Core\Access\AccessResult;
use Drupal\Core\Session\AccountInterface;
use Drupal\node\NodeInterface;
use Drupal\node\Entity\NodeType;

/**
 * Node view access default gid.
 */
const NODE_VIEW_ACCESS_GID = 23;

/**
 * Implements hook_node_access().
 */
function node_view_access_node_access(NodeInterface $node, $op, AccountInterface $account) {
  if ($op == 'view') {
    $is_owner = $account->id() === $node->getOwnerId();

    if (!$node->isPublished()) {
      return AccessResult::allowedIf($account->hasPermission('view own unpublished content') && $account->isAuthenticated() && $is_owner)
        ->cachePerPermissions()
        ->cachePerUser()
        ->addCacheableDependency($node);
    }

    $type = $node->bundle();

    if ($account->hasPermission('view ' . $type . ' content')) {
      return AccessResult::allowed()->cachePerPermissions();
    }
    else {
      return AccessResult::allowedIf($account->hasPermission('view own ' . $type . ' content') && $is_owner)
        ->cachePerPermissions()
        ->cachePerUser()
        ->addCacheableDependency($node);
    }
  }

  // No opinion.
  return AccessResult::neutral();
}

/**
 * Implements hook_node_grants().
 */
function node_view_access_node_grants(AccountInterface $account, $op) {
  $grants = array();

  if ($op == 'view') {

    if ($account->hasPermission('view own unpublished content')) {
      $grants['node_view_access_author_unpublished'] = array($account->id());
    }

    foreach (NodeType::loadMultiple() as $key => $type) {
      if ($account->hasPermission("view $key content")) {
        $grants["node_view_access_view_$key"] = array(NODE_VIEW_ACCESS_GID);
      }
      if ($account->hasPermission("view own $key content")) {
        $grants['node_view_access_author'] = array($account->id());
      }
    }

  }

  return $grants;
}

/**
 * Implements hook_node_access_records().
 */
function node_view_access_node_access_records(NodeInterface $node) {
  $grants = array();

  if ($node->isPublished()) {
    $type = $node->getType();

    $grants[] = array(
      'realm' => 'node_view_access_view_' . $type,
      'gid' => NODE_VIEW_ACCESS_GID,
      'grant_view' => 1,
      'grant_update' => 0,
      'grant_delete' => 0,
      'priority' => 0,
    );

    $grants[] = array(
      'realm' => 'node_view_access_author',
      'gid' => $node->getOwnerId(),
      'grant_view' => 1,
      'grant_update' => 0,
      'grant_delete' => 0,
      'priority' => 0,
    );
  }
  else {
    $grants[] = array(
      'realm' => 'node_view_access_author_unpublished',
      'gid' => $node->getOwnerId(),
      'grant_view' => 1,
      'grant_update' => 0,
      'grant_delete' => 0,
      'priority' => 0,
    );
  }

  return $grants;
}