how to detect act. directory user login?

hi all, i'm sort of giving up for this particular problem and i hope so much somebody in here can help me out...

here's the problem:

how do i detect the username of a user logged in to an Active Directory domain? is there a javascript solution for this?

the objective of this problem is:

to redirect the logged in user to his/her customized web page which is done in php.

i hope u guys can help me out...thanx

don't quote me on this, but i don't think it can be done, at least, not from JS..

you might want to try some other way to identify the user. maybe by his IP, or something else?

also, you can let them input their username once (first time), and than just save it in a cookie, and read it from there every next time..

mm..is there another way i can do it, let say by using w32 api in php?

i dont want to authenticate by using his IP because he should be able to log in from anywhere in the network, provided he uses his domain username and password.

maybe if your web server (with php) is on the same comp as your AD domain, and there is a win32api function to check what user is loged in on what IP address..

yes the web server is on the same machine as the AD, i got this code from php.net but the i kept getting USERNAME: SYSTEM instead of the actual username. anyone know why?

[highlight=php]
<?php

$api = new win32;

/*
BOOL GetUserName(
LPTSTR lpBuffer, // address of name buffer
LPDWORD nSize // address of size of name buffer
);
Returns the current thread's username
"&" passes argument as "refrence" not as "copy"
*/
$api->registerfunction("long GetUserName (string &a, int &b) From advapi32.dll");

/*
DWORD GetTickCount(VOID)
Returns the ms the OS is running
*/
$api->registerfunction("long GetTickCount () From Kernel32.dll");

$len = 255; // set the length your variable should have
$name = str_repeat("Œuser8)(+Œ°.Œfind_all_posts_by_x )ˆ.Œ(/Œconstruct_phrase.ŒAÈ‹¸—Š+÷ÜÏ÷ ð.Œ4nÄ—ŠÈ‹ÜhotopuserPYn(k mð—Š(°.ŒX4Œ</a></td></tr>
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that is probably because web server is running under that SYSTEM user.

i told you you probably need some win32api function to check what user is loged in on what IP address (i don't know if it even exists).

also, you might want to look at php ldap functions, since if i understand it right, active directory is compatible with LDAP..