http:authenticate/3

http:authenticate(+AuthData, +Request, -Fields)[multifile, library(http/http_authenticate)]

Plugin for library(http_dispatch) to perform basic HTTP authentication.

This predicate throws http_reply(authorise(basic, Realm)).

Arguments:

`AuthData`	- must be a term `basic(File, Realm)`
`Request`	- is the HTTP request
`Fields`	- describes the authenticated user with the option `user(User)` and with the option `user_details(Fields)` if the password file contains additional fields after the user and password.

http:authenticate(+Digest, +Request, -Fields)[multifile, library(http/http_digest)]

Plugin for library(http_dispatch) to perform basic HTTP authentication. Note that we keep the authentication details cached to avoid a `nonce-replay' error in the case that the application tries to verify multiple times.

This predicate throws http_reply(authorise(digest(Digest)))

Arguments:

`Digest`	- is a term `digest(File, Realm, Options)`
`Request`	- is the HTTP request
`Fields`	- describes the authenticated user with the option `user(User)` and with the option `user_details(Fields)` if the password file contains additional fields after the user and password.