NodeFieldAccessTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\node\Kernel;

use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
use Drupal\node\Entity\Node;
use Drupal\node\Entity\NodeType;

/**
 * Tests node field level access.
 *
 * @group node
 */
class NodeFieldAccessTest extends EntityKernelTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'node',
    ];
    
    /**
     * Fields that only users with administer nodes permissions can change.
     *
     * @var array
     */
    protected $administrativeFields = [
        'status',
        'promote',
        'sticky',
        'created',
        'uid',
    ];
    
    /**
     * These fields are automatically managed and can not be changed by any user.
     *
     * @var array
     */
    protected $readOnlyFields = [
        'changed',
        'revision_uid',
        'revision_timestamp',
    ];
    
    /**
     * Tests permissions on nodes status field.
     */
    public function testAccessToAdministrativeFields() : void {
        // Create the page node type with revisions disabled.
        $page = NodeType::create([
            'type' => 'page',
            'name' => 'Page',
            'new_revision' => FALSE,
        ]);
        $page->save();
        // Create the article node type with revisions enabled.
        $article = NodeType::create([
            'type' => 'article',
            'name' => 'Article',
            'new_revision' => TRUE,
        ]);
        $article->save();
        // An administrator user. No user exists yet, ensure that the first user
        // does not have UID 1.
        $content_admin_user = $this->createUser([
            'administer nodes',
            'access content',
        ], values: [
            'uid' => 2,
        ]);
        // Two different editor users.
        $page_creator_user = $this->createUser([
            'create page content',
            'edit own page content',
            'delete own page content',
            'access content',
        ]);
        $page_manager_user = $this->createUser([
            'create page content',
            'edit any page content',
            'delete any page content',
            'access content',
        ]);
        // An unprivileged user.
        $page_unrelated_user = $this->createUser([
            'access content',
        ]);
        // List of all users
        $test_users = [
            $content_admin_user,
            $page_creator_user,
            $page_manager_user,
            $page_unrelated_user,
        ];
        // Create three "Basic pages". One is owned by our test-user
        // "page_creator", one by "page_manager", and one by someone else.
        $node1 = Node::create([
            'title' => $this->randomMachineName(8),
            'uid' => $page_creator_user->id(),
            'type' => 'page',
        ]);
        $node1->save();
        $node2 = Node::create([
            'title' => $this->randomMachineName(8),
            'uid' => $page_manager_user->id(),
            'type' => 'article',
            'revision_log' => 'Updated to requirements',
        ]);
        $node2->save();
        $node3 = Node::create([
            'title' => $this->randomMachineName(8),
            'type' => 'page',
        ]);
        $node3->save();
        foreach ($this->administrativeFields as $field) {
            // Checks on view operations.
            foreach ($test_users as $account) {
                $may_view = $node1->{$field}
                    ->access('view', $account);
                $this->assertTrue($may_view, "Any user may view the field {$field}.");
            }
            // Checks on edit operations.
            $may_update = $node1->{$field}
                ->access('edit', $page_creator_user);
            $this->assertFalse($may_update, 'Users with permission "edit own page content" is not allowed to the field ' . $field . '.');
            $may_update = $node2->{$field}
                ->access('edit', $page_creator_user);
            $this->assertFalse($may_update, 'Users with permission "edit own page content" is not allowed to the field ' . $field . '.');
            $may_update = $node2->{$field}
                ->access('edit', $page_manager_user);
            $this->assertFalse($may_update, 'Users with permission "edit any page content" is not allowed to the field ' . $field . '.');
            $may_update = $node1->{$field}
                ->access('edit', $page_manager_user);
            $this->assertFalse($may_update, 'Users with permission "edit any page content" is not allowed to the field ' . $field . '.');
            $may_update = $node2->{$field}
                ->access('edit', $page_unrelated_user);
            $this->assertFalse($may_update, 'Users not having permission "edit any page content" is not allowed to the field ' . $field . '.');
            $may_update = $node1->{$field}
                ->access('edit', $content_admin_user) && $node3->status
                ->access('edit', $content_admin_user);
            $this->assertTrue($may_update, 'Users with permission "administer nodes" may edit ' . $field . ' fields on all nodes.');
        }
        foreach ($this->readOnlyFields as $field) {
            // Check view operation.
            foreach ($test_users as $account) {
                $may_view = $node1->{$field}
                    ->access('view', $account);
                $this->assertTrue($may_view, "Any user may view the field {$field}.");
            }
            // Check edit operation.
            foreach ($test_users as $account) {
                $may_view = $node1->{$field}
                    ->access('edit', $account);
                $this->assertFalse($may_view, "No user is not allowed to edit the field {$field}.");
            }
        }
        // Check the revision_log field on node 1 which has revisions disabled.
        $may_update = $node1->revision_log
            ->access('edit', $content_admin_user);
        $this->assertTrue($may_update, 'A user with permission "administer nodes" can edit the revision_log field when revisions are disabled.');
        $may_update = $node1->revision_log
            ->access('edit', $page_creator_user);
        $this->assertFalse($may_update, 'A user without permission "administer nodes" can not edit the revision_log field when revisions are disabled.');
        // Check the revision_log field on node 2 which has revisions enabled.
        $may_update = $node2->revision_log
            ->access('edit', $content_admin_user);
        $this->assertTrue($may_update, 'A user with permission "administer nodes" can edit the revision_log field when revisions are enabled.');
        $may_update = $node2->revision_log
            ->access('edit', $page_creator_user);
        $this->assertTrue($may_update, 'A user without permission "administer nodes" can edit the revision_log field when revisions are enabled.');
        $may_view = $node2->revision_log
            ->access('view', $content_admin_user);
        $this->assertTrue($may_view, 'A user without permission "administer nodes" cannot view the revision_log field when revisions are enabled.');
        // Page manager only has permissions to 'page', not 'article' content type.
        $may_view = $node2->revision_log
            ->access('view', $page_manager_user);
        $this->assertFalse($may_view, 'A user without permission to the content type cannot view the revision_log field when revisions are enabled.');
        $article_revision_manager_user = $this->createUser([
            'access content',
            'view article revisions',
        ]);
        $may_view = $node2->revision_log
            ->access('view', $article_revision_manager_user);
        $this->assertTrue($may_view, 'A user without permission "view article revisions" cannot view the revision_log field when revisions are enabled on article.');
        $revision_manager_user = $this->createUser([
            'access content',
            'view all revisions',
        ]);
        $may_view = $node2->revision_log
            ->access('view', $revision_manager_user);
        $this->assertTrue($may_view, 'A user without permission "view all revisions" cannot view the revision_log field when revisions are enabled.');
        $may_view = $node2->revision_log
            ->access('view', $page_unrelated_user);
        $this->assertFalse($may_view, 'A user with only permission "access content" cannot view the revision_log field when revisions are enabled.');
    }

}