:- use_module(library(http/http_authenticate)). [semidet]http_authorization_data(+AuthorizeText, 
?Data)
[semidet]http_authorization_data(+AuthorizeText, 
?Data)Authorization header. Data is a 
term
Method(User, Password)
where Method is the (downcased) authorization method (typically
basic), User is an atom holding the user name and Password 
is a list of codes holding the password