function user_pass_reset in Drupal 5

Same name and namespace in other branches

1. 4 modules/user.module \user_pass_reset()
2. 6 modules/user/user.pages.inc \user_pass_reset()
3. 7 modules/user/user.pages.inc \user_pass_reset()

Menu callback; process one time login link and redirects to the user page on success.

1 string reference to 'user_pass_reset'

user_menu in modules/user/user.module

Implementation of hook_menu().

File

modules/user/user.module, line 1116

Enables the user registration and login system.

Code

function user_pass_reset($uid, $timestamp, $hashed_pass, $action = NULL) {
  global $user;

  // Check if the user is already logged in. The back button is often the culprit here.
  if ($user->uid) {
    drupal_set_message(t('You have already used this one-time login link. It is not necessary to use this link to login anymore. You are already logged in.'));
    drupal_goto();
  }
  else {

    // Time out, in seconds, until login URL expires. 24 hours = 86400 seconds.
    $timeout = 86400;
    $current = time();

    // Some redundant checks for extra security ?
    if ($timestamp < $current && ($account = user_load(array(
      'uid' => $uid,
      'status' => 1,
    )))) {

      // Deny one-time login to blocked accounts.
      if (drupal_is_denied('user', $account->name) || drupal_is_denied('mail', $account->mail)) {
        drupal_set_message(t('You have tried to use a one-time login for an account which has been blocked.'), 'error');
        drupal_goto();
      }

      // No time out for first time login.
      if ($account->login && $current - $timestamp > $timeout) {
        drupal_set_message(t('You have tried to use a one-time login link that has expired. Please request a new one using the form below.'));
        drupal_goto('user/password');
      }
      else {
        if ($account->uid && $timestamp > $account->login && $timestamp < $current && $hashed_pass == user_pass_rehash($account->pass, $timestamp, $account->login)) {

          // First stage is a confirmation form, then login
          if ($action == 'login') {
            watchdog('user', t('User %name used one-time login link at time %timestamp.', array(
              '%name' => $account->name,
              '%timestamp' => $timestamp,
            )));

            // Update the user table noting user has logged in.
            // And this also makes this hashed password a one-time-only login.
            db_query("UPDATE {users} SET login = %d WHERE uid = %d", time(), $account->uid);

            // Now we can set the new user.
            $user = $account;

            // And proceed with normal login, going to user page.
            $edit = array();

            // Regenerate the session ID to prevent against session fixation attacks.
            sess_regenerate();
            user_module_invoke('login', $edit, $user);
            drupal_set_message(t('You have just used your one-time login link. It is no longer necessary to use this link to login. Please change your password.'));
            drupal_goto('user/' . $user->uid . '/edit');
          }
          else {
            $form['message'] = array(
              '#value' => t('<p>This is a one-time login for %user_name and will expire on %expiration_date</p><p>Click on this button to login to the site and change your password.</p>', array(
                '%user_name' => $account->name,
                '%expiration_date' => format_date($timestamp + $timeout),
              )),
            );
            $form['help'] = array(
              '#value' => '<p>' . t('This login can be used only once.') . '</p>',
            );
            $form['submit'] = array(
              '#type' => 'submit',
              '#value' => t('Log in'),
            );
            $form['#action'] = url("user/reset/{$uid}/{$timestamp}/{$hashed_pass}/login");
            return $form;
          }
        }
        else {
          drupal_set_message(t('You have tried to use a one-time login link which has either been used or is no longer valid. Please request a new one using the form below.'));
          drupal_goto('user/password');
        }
      }
    }
    else {

      // Deny access, no more clues.
      // Everything will be in the watchdog's URL for the administrator to check.
      drupal_access_denied();
    }
  }
}