constraint_delay.inc in Password Policy 7

Constraint callback to set a minimum delay between password changes.

@link https://drupal.org/node/316765

File

constraints/constraint_delay.inc

<?php

/**
 * @file
 * Constraint callback to set a minimum delay between password changes.
 *
 * @link https://drupal.org/node/316765
 */

/****************************************************************************/

/* Constraint API                                                           */

/****************************************************************************/

/**
 * Description of the constraint.
 */
function password_policy_constraint_delay_description() {
  return array(
    'name' => t('Delay'),
    'description' => t('Minimum number of hours between password changes.'),
  );
}

/**
 * Error message of the constraint.
 */
function password_policy_constraint_delay_error($constraint) {
  return format_plural($constraint, 'Password may only be changed in an hour from the last change.', 'Password may only be changed in @count hours from the last change.');
}

/**
 * Password validation.
 */
function password_policy_constraint_delay_validate($password, $constraint, $account) {

  // Bypass delay constraint, if account is marked "Force password change on
  // next login".
  if (isset($account->force_password_change) && $account->force_password_change) {
    return TRUE;
  }
  $query = db_select('password_policy_history');
  $query
    ->addExpression('MAX(created)');
  $last_change = $query
    ->condition('uid', $account->uid)
    ->execute()
    ->fetchField();
  if ($last_change) {

    // Constraint is set in hours, so it gets converted to seconds with *60*60.
    return _password_policy_get_request_time() - $constraint * 60 * 60 > $last_change;
  }
  return TRUE;
}

Functions

Name	Description
password_policy_constraint_delay_description	Description of the constraint.
password_policy_constraint_delay_error	Error message of the constraint.
password_policy_constraint_delay_validate	Password validation.