Support windowsAuthentication on PHP/IIS

I have been working with PHP installed in a Windows Server and IIS, I was trying to make the ldap_sso work, according to this page the variable that contains the logged in user information is called LOGON_USER

In the IIS instance I enabled the windowsAuthentication feature, I also disabled the anonymousAuthentication.

I created two patches to allow ldap and ldap_sso modules to use the windowsAuthentication.

With these changes IIS will provide the authenticated user identity information to the PHP page through server variables.

Here are the two patches:

LDAP module patch:
LDAP_windowsAuthentication_not_able_to_log_in_PHP_IIS-2999178-2.patch

LDAP_SSO module patch:
LDAP_SSO_windowsAuthentication_not_able_to_log_in_PHP_IIS-2999178-2.patch

I created two patches since I modified both ldap and ldap_sso.

I hope this helps someone who has the same problem.