[Mediawiki-l] sequence to add a new user in mediawiki

[sharmishtha gupta]

Hi,

We want to disable Signup for new users in mediawiki and want to add them
into database manually. for this we want to understand the sequence of
function used to store a new user into mediawiki database. we looked this:-
includes/GlobalFunctions.php

function wfEncryptPassword( $userid, $password ) {
 global $wgPasswordSalt;
 $p = md5( $password);

 if($wgPasswordSalt)
  return md5( "{$userid}-{$p}" );
 else
  return $p;
}

But need to know that where $wgPasswordSalt set its value and finally where
this function called to get encryted password.

Can you suggest sequence of storing a new user in mediawiki as this will be
of great help.

Thank you