function AutoLoginUrlCreate::create in Auto Login URL 8

Same name and namespace in other branches

1. 2.x src/AutoLoginUrlCreate.php \Drupal\auto_login_url\AutoLoginUrlCreate::create()

Create an auto login hash on demand.

Parameters

int $uid: User id.

string $destination: Destination URL.

bool $absolute: Absolute or relative link.

Return value

string Auto Login URL.

File

src/AutoLoginUrlCreate.php, line 38

Class

AutoLoginUrlCreate

Namespace

Drupal\auto_login_url

Code

function create($uid, $destination, $absolute = FALSE) {
  $config = \Drupal::config('auto_login_url.settings');

  // Get ALU secret.
  $auto_login_url_secret = \Drupal::service('auto_login_url.general')
    ->getSecret();

  // Get user password.
  $password = \Drupal::service('auto_login_url.general')
    ->getUserHash($uid);

  // Create key.
  $key = Settings::getHashSalt() . $auto_login_url_secret . $password;

  // Repeat until the hash that is saved in DB is unique.
  $hash_helper = 0;
  do {
    $data = $uid . microtime(TRUE) . $destination . $hash_helper;

    // Generate hash.
    $hash = Crypt::hmacBase64($data, $key);

    // Get substring.
    $hash = substr($hash, 0, $config
      ->get('token_length'));

    // Generate hash to save to DB.
    $hash_db = Crypt::hmacBase64($hash, $key);

    // Check hash is unique.
    $result = $this->connection
      ->select('auto_login_url', 'alu')
      ->fields('alu', [
      'hash',
    ])
      ->condition('alu.hash', $hash_db)
      ->execute()
      ->fetchAssoc();

    // Increment value in case there will be a next iteration.
    $hash_helper++;
  } while (isset($result['hash']));

  // Insert a new hash.
  $this->connection
    ->insert('auto_login_url')
    ->fields([
    'uid',
    'hash',
    'destination',
    'timestamp',
  ])
    ->values([
    'uid' => $uid,
    'hash' => $hash_db,
    'destination' => $destination,
    'timestamp' => time(),
  ])
    ->execute();

  // Check if link is absolute.
  $absolute_path = '';
  if ($absolute) {
    global $base_url;
    $absolute_path = $base_url . '/';
  }
  return $absolute_path . 'autologinurl/' . $uid . '/' . $hash;
}