class ContactPersonalTest

class ContactPersonalTest extends BrowserTestBase {
    use AssertMailTrait;
    use AssertPageCacheContextsAndTagsTrait;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'contact',
        'dblog',
        'mail_html_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * A user with some administrative permissions.
     *
     * @var \Drupal\user\UserInterface
     */
    private $adminUser;
    
    /**
     * A user with permission to view profiles and access user contact forms.
     *
     * @var \Drupal\user\UserInterface
     */
    private $webUser;
    
    /**
     * A user without any permissions.
     *
     * @var \Drupal\user\UserInterface
     */
    private $contactUser;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Create an admin user.
        $this->adminUser = $this->drupalCreateUser([
            'administer contact forms',
            'administer users',
            'administer account settings',
            'access site reports',
        ]);
        // Create some normal users with their contact forms enabled by default.
        $this->config('contact.settings')
            ->set('user_default_enabled', TRUE)
            ->save();
        $this->webUser = $this->drupalCreateUser([
            'access user profiles',
            'access user contact forms',
        ]);
        $this->contactUser = $this->drupalCreateUser();
    }
    
    /**
     * Tests that mails for contact messages are correctly sent.
     */
    public function testSendPersonalContactMessage() {
        // Ensure that the web user's email needs escaping.
        $mail = $this->webUser
            ->getAccountName() . '&escaped@example.com';
        $this->webUser
            ->setEmail($mail)
            ->save();
        $this->drupalLogin($this->webUser);
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->assertEscaped($mail);
        $message = $this->submitPersonalContact($this->contactUser);
        $mails = $this->getMails();
        $this->assertCount(1, $mails);
        $mail = $mails[0];
        $this->assertEquals($this->contactUser
            ->getEmail(), $mail['to']);
        $this->assertEquals($this->config('system.site')
            ->get('mail'), $mail['from']);
        $this->assertEquals($this->webUser
            ->getEmail(), $mail['reply-to']);
        $this->assertEquals('user_mail', $mail['key']);
        $subject = '[' . $this->config('system.site')
            ->get('name') . '] ' . $message['subject[0][value]'];
        $this->assertEquals($subject, $mail['subject'], 'Subject is in sent message.');
        $this->assertStringContainsString('Hello ' . $this->contactUser
            ->getDisplayName(), $mail['body'], 'Recipient name is in sent message.');
        $this->assertStringContainsString($this->webUser
            ->getDisplayName(), $mail['body'], 'Sender name is in sent message.');
        $this->assertStringContainsString($message['message[0][value]'], $mail['body'], 'Message body is in sent message.');
        // Check there was no problems raised during sending.
        $this->drupalLogout();
        $this->drupalLogin($this->adminUser);
        // Verify that the correct watchdog message has been logged.
        $this->drupalGet('/admin/reports/dblog');
        $placeholders = [
            '@sender_name' => $this->webUser
                ->getAccountName(),
            '@sender_email' => $this->webUser
                ->getEmail(),
            '@recipient_name' => $this->contactUser
                ->getAccountName(),
        ];
        $this->assertSession()
            ->responseContains(new FormattableMarkup('@sender_name (@sender_email) sent @recipient_name an email.', $placeholders));
        // Ensure an unescaped version of the email does not exist anywhere.
        $this->assertSession()
            ->responseNotContains($this->webUser
            ->getEmail());
        // Test HTML mails.
        $mail_config = $this->config('system.mail');
        $mail_config->set('interface.default', 'test_html_mail_collector');
        $mail_config->save();
        $this->drupalLogin($this->webUser);
        $message['message[0][value]'] = 'This <i>is</i> a more <b>specific</b> <sup>test</sup>, the emails are formatted now.';
        $message = $this->submitPersonalContact($this->contactUser, $message);
        // Assert mail content.
        $this->assertMailString('body', 'Hello ' . $this->contactUser
            ->getDisplayName(), 1);
        $this->assertMailString('body', $this->webUser
            ->getDisplayName(), 1);
        $this->assertMailString('body', Html::Escape($message['message[0][value]']), 1);
    }
    
    /**
     * Tests access to the personal contact form.
     */
    public function testPersonalContactAccess() {
        // Test allowed access to admin user's contact form.
        $this->drupalLogin($this->webUser);
        $this->drupalGet('user/' . $this->adminUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Check the page title is properly displayed.
        $this->assertSession()
            ->pageTextContains('Contact ' . $this->adminUser
            ->getDisplayName());
        // Test denied access to admin user's own contact form.
        $this->drupalLogout();
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('user/' . $this->adminUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Test allowed access to user with contact form enabled.
        $this->drupalLogin($this->webUser);
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Test that there is no access to personal contact forms for users
        // without an email address configured.
        $original_email = $this->contactUser
            ->getEmail();
        $this->contactUser
            ->setEmail(FALSE)
            ->save();
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(404);
        // Test that the 'contact tab' does not appear on the user profiles
        // for users without an email address configured.
        $this->drupalGet('user/' . $this->contactUser
            ->id());
        $contact_link = '/user/' . $this->contactUser
            ->id() . '/contact';
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->linkByHrefNotExists($contact_link, 'The "contact" tab is hidden on profiles for users with no email address');
        // Restore original email address.
        $this->contactUser
            ->setEmail($original_email)
            ->save();
        // Test denied access to the user's own contact form.
        $this->drupalGet('user/' . $this->webUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Test always denied access to the anonymous user contact form.
        $this->drupalGet('user/0/contact');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Test that anonymous users can access the contact form.
        $this->drupalLogout();
        user_role_grant_permissions(RoleInterface::ANONYMOUS_ID, [
            'access user contact forms',
        ]);
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Test that anonymous users can access admin user's contact form.
        $this->drupalGet('user/' . $this->adminUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertCacheContext('user');
        // Revoke the personal contact permission for the anonymous user.
        user_role_revoke_permissions(RoleInterface::ANONYMOUS_ID, [
            'access user contact forms',
        ]);
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(403);
        $this->assertCacheContext('user');
        $this->drupalGet('user/' . $this->adminUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Disable the personal contact form.
        $this->drupalLogin($this->adminUser);
        $edit = [
            'contact_default_status' => FALSE,
        ];
        $this->drupalGet('admin/config/people/accounts');
        $this->submitForm($edit, 'Save configuration');
        $this->assertSession()
            ->pageTextContains('The configuration options have been saved.');
        $this->drupalLogout();
        // Re-create our contacted user with personal contact forms disabled by
        // default.
        $this->contactUser = $this->drupalCreateUser();
        // Test denied access to a user with contact form disabled.
        $this->drupalLogin($this->webUser);
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Test allowed access for admin user to a user with contact form disabled.
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Re-create our contacted user as a blocked user.
        $this->contactUser = $this->drupalCreateUser();
        $this->contactUser
            ->block();
        $this->contactUser
            ->save();
        // Test that blocked users can still be contacted by admin.
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Test that blocked users cannot be contacted by non-admins.
        $this->drupalLogin($this->webUser);
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Test enabling and disabling the contact page through the user profile
        // form.
        $this->drupalGet('user/' . $this->webUser
            ->id() . '/edit');
        $this->assertSession()
            ->checkboxNotChecked('edit-contact--2');
        $this->assertNull(\Drupal::service('user.data')->get('contact', $this->webUser
            ->id(), 'enabled'), 'Personal contact form disabled');
        $this->submitForm([
            'contact' => TRUE,
        ], 'Save');
        $this->assertSession()
            ->checkboxChecked('edit-contact--2');
        $this->assertNotEmpty(\Drupal::service('user.data')->get('contact', $this->webUser
            ->id(), 'enabled'), 'Personal contact form enabled');
        // Test with disabled global default contact form in combination with a user
        // that has the contact form enabled.
        $this->config('contact.settings')
            ->set('user_default_enabled', FALSE)
            ->save();
        $this->contactUser = $this->drupalCreateUser();
        \Drupal::service('user.data')->set('contact', $this->contactUser
            ->id(), 'enabled', 1);
        $this->drupalGet('user/' . $this->contactUser
            ->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals(200);
    }
    
    /**
     * Tests the personal contact form flood protection.
     */
    public function testPersonalContactFlood() {
        $flood_limit = 3;
        $this->config('contact.settings')
            ->set('flood.limit', $flood_limit)
            ->save();
        $this->drupalLogin($this->webUser);
        // Submit contact form with correct values and check flood interval.
        for ($i = 0; $i < $flood_limit; $i++) {
            $this->submitPersonalContact($this->contactUser);
            $this->assertSession()
                ->pageTextContains('Your message has been sent.');
        }
        // Submit contact form one over limit.
        $this->submitPersonalContact($this->contactUser);
        // Normal user should be denied access to flooded contact form.
        $interval = \Drupal::service('date.formatter')->formatInterval($this->config('contact.settings')
            ->get('flood.interval'));
        $this->assertSession()
            ->pageTextContains("You cannot send more than 3 messages in {$interval}. Try again later.");
        // Test that the admin user can still access the contact form even though
        // the flood limit was reached.
        $this->drupalLogin($this->adminUser);
        $this->assertSession()
            ->pageTextNotContains('Try again later.');
    }
    
    /**
     * Tests the personal contact form based access when an admin adds users.
     */
    public function testAdminContact() {
        user_role_grant_permissions(RoleInterface::ANONYMOUS_ID, [
            'access user contact forms',
        ]);
        $this->checkContactAccess(200);
        $this->checkContactAccess(403, FALSE);
        $config = $this->config('contact.settings');
        $config->set('user_default_enabled', FALSE);
        $config->save();
        $this->checkContactAccess(403);
    }
    
    /**
     * Creates a user and then checks contact form access.
     *
     * @param int $response
     *   The expected response code.
     * @param bool $contact_value
     *   (optional) The value the contact field should be set too.
     */
    protected function checkContactAccess($response, $contact_value = NULL) {
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/people/create');
        if ($this->config('contact.settings')
            ->get('user_default_enabled', TRUE)) {
            $this->assertSession()
                ->checkboxChecked('edit-contact--2');
        }
        else {
            $this->assertSession()
                ->checkboxNotChecked('edit-contact--2');
        }
        $name = $this->randomMachineName();
        $edit = [
            'name' => $name,
            'mail' => $this->randomMachineName() . '@example.com',
            'pass[pass1]' => $pass = $this->randomString(),
            'pass[pass2]' => $pass,
            'notify' => FALSE,
        ];
        if (isset($contact_value)) {
            $edit['contact'] = $contact_value;
        }
        $this->drupalGet('admin/people/create');
        $this->submitForm($edit, 'Create new account');
        $user = user_load_by_name($name);
        $this->drupalLogout();
        $this->drupalGet('user/' . $user->id() . '/contact');
        $this->assertSession()
            ->statusCodeEquals($response);
    }
    
    /**
     * Fills out a user's personal contact form and submits it.
     *
     * @param \Drupal\Core\Session\AccountInterface $account
     *   A user object of the user being contacted.
     * @param array $message
     *   (optional) An array with the form fields being used. Defaults to an empty
     *   array.
     *
     * @return array
     *   An array with the form fields being used.
     */
    protected function submitPersonalContact(AccountInterface $account, array $message = []) {
        $message += [
            'subject[0][value]' => $this->randomMachineName(16) . '< " =+ >',
            'message[0][value]' => $this->randomMachineName(64) . '< " =+ >',
        ];
        $this->drupalGet('user/' . $account->id() . '/contact');
        $this->submitForm($message, 'Send message');
        return $message;
    }

}