[amatulic]

This works for me to log in a user. I'm using vBulletin 3.6.8. I pulled the following from a larger module; hopefully I got everything necessary:

PHP Code:

require_once(FORUMPATH.'/includes/init.php');
require_once(FORUMPATH.'/includes/functions.php'); // vbsetcookie, etc.
define('PERMANENT_COOKIE', false);

   function fetch_userinfo_from_username($username)
   {
   // This duplicates the functionality of fetch_userinfo(),
   // only with the user name instead of numeric ID as the argument.
   // Adapted from verify_authentication() in functions_login.php

      global $vbulletin;
      $username = strip_blank_ascii($username, ' ');
      $vbulletin->userinfo = $vbulletin->db->query_first(
         "SELECT userid, usergroupid, membergroupids, infractiongroupids, username, password, salt FROM "
         . TABLE_PREFIX . "user WHERE username = '" .
         $vbulletin->db->escape_string(htmlspecialchars_uni($username)) ."'");
      return $vbulletin->userinfo;
   }


   // ======== USER LOGIN / LOGOFF ========

   function login($username)
   { // password not needed -- assumes you've already authenticated it
      global $vbulletin;
      fetch_userinfo_from_username($username);
      // set cookies
      vbsetcookie('userid', $vbulletin->userinfo['userid'],
         PERMANENT_COOKIE, true, true);
      vbsetcookie('password',
         md5($vbulletin->userinfo['password'].COOKIE_SALT),
         PERMANENT_COOKIE, true, true);
      // create session stuff
      process_new_login('', 1, '');
   }


   function logout()
   {
      process_logout(); // unsets all cookies and session data
   } 


This seems to work pretty well. It cleanly logs on and establishes all the session stuff, and cleanly logs off.

I have a much more complete version of the code above, to create, delete, log on, log off, and modify users in this article.

-A