sess_read

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includes/session.inc, строка 16

Версии
5 – 6
sess_read($key)

Код

<?php
function sess_read($key) {
  global $user;

  // Write and Close handlers are called after destructing objects since PHP 5.0.5
  // Thus destructors can use sessions but session handler can't use objects.
  // So we are moving session closure before destructing objects.
  register_shutdown_function('session_write_close');

  // Handle the case of first time visitors and clients that don't store cookies (eg. web crawlers).
  if (!isset($_COOKIE[session_name()])) {
    $user = drupal_anonymous_user();
    return '';
  }

  // Otherwise, if the session is still active, we have a record of the client's session in the database.
  $user = db_fetch_object(db_query("SELECT u.*, s.* FROM {users} u INNER JOIN {sessions} s ON u.uid = s.uid WHERE s.sid = '%s'", $key));

  // We found the client's session record and they are an authenticated user
  if ($user && $user->uid > 0) {
    // This is done to unserialize the data member of $user
    $user = drupal_unpack($user);

    // Add roles element to $user
    $user->roles = array();
    $user->roles[DRUPAL_AUTHENTICATED_RID] = 'authenticated user';
    $result = db_query("SELECT r.rid, r.name FROM {role} r INNER JOIN {users_roles} ur ON ur.rid = r.rid WHERE ur.uid = %d", $user->uid);
    while ($role = db_fetch_object($result)) {
      $user->roles[$role->rid] = $role->name;
    }
  }
  // We didn't find the client's record (session has expired), or they are an anonymous user.
  else {
    $session = isset($user->session) ? $user->session : '';
    $user = drupal_anonymous_user($session);
  }

  return $user->session;
}
?>
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