uid) {
// The existing user is already logged in.
if ($user->uid == $uid) {
drupal_set_message(t('You are logged in as %user. Change your password.', array('%user' => $user->name, '!user_edit' => url("user/$user->uid/edit"))));
}
// A different user is already logged in on the computer.
else {
$reset_link_account = user_load($uid);
if (!empty($reset_link_account)) {
drupal_set_message(t('Another user (%other_user) is already logged into the site on this computer, but you tried to use a one-time link for user %resetting_user. Please logout and try using the link again.',
array('%other_user' => $user->name, '%resetting_user' => $reset_link_account->name, '!logout' => url('user/logout'))));
}
else {
// Invalid one-time link specifies an unknown user.
drupal_set_message(t('The one-time login link you clicked is invalid.'));
}
}
drupal_goto();
}
else {
// Time out, in seconds, until login URL expires. 24 hours = 86400 seconds.
$timeout = 86400;
$current = REQUEST_TIME;
// Some redundant checks for extra security ?
$users = user_load_multiple(array($uid), array('status' => '0'));
if ($timestamp <= $current && $account = reset($users)) {
// No time out for first time login.
if ($account->login && $current - $timestamp > $timeout) {
drupal_set_message(t('You have tried to use a one-time login link that has expired. Please request a new one using the form below.'));
drupal_goto('user/password');
}
elseif ($account->uid && $timestamp >= $account->login && $timestamp <= $current && $hashed_pass == user_pass_rehash($account->pass, $timestamp, $account->login)) {
watchdog('user', 'User %name used one-time login link at time %timestamp.', array('%name' => $account->name, '%timestamp' => $timestamp));
// Activate the user.
$account = user_save($account, array('status' => 1));
// Set the new user.
$user = $account;
// user_login_finalize() also updates the login timestamp of the
// user, which invalidates further use of the one-time login link.
user_login_finalize();
drupal_set_message(t('You have just used your one-time login link. Your account is now active.'));
drupal_goto('user');
}
else {
drupal_set_message(t('You have tried to use a one-time login link that has either been used or is no longer valid.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();
}
}
}