function masquerade_init in Masquerade 7

Same name and namespace in other branches

1. 5 masquerade.module \masquerade_init()
2. 6 masquerade.module \masquerade_init()

Implements hook_init().

File

./masquerade.module, line 52

The masquerade module allows administrators to masquerade as other user.

Code

function masquerade_init() {
  global $user;

  // Try to load masqing uid from masquerade table.
  $uid = db_query("SELECT uid_from FROM {masquerade} WHERE sid = :sid AND uid_as = :uid_as", array(
    ':sid' => session_id(),
    ':uid_as' => $user->uid,
  ))
    ->fetchField();

  // We are using identical operator (===) instead of equal (==) because if
  // $uid === 0 we want to store the session variable. If there's no record in
  // masquerade table we clear the session variable.
  if ($uid === FALSE) {
    if (isset($_SESSION)) {
      unset($_SESSION['masquerading']);
    }
  }
  else {
    $_SESSION['masquerading'] = $uid;
  }
}