Checks for valid HTTP Basic Auth authentication on the given request.
bool checkBasicAuth (
scope HTTPServerRequest req,
scope @safe bool delegate(string, string) pwcheck
|req||Request object that is to be checked|
|pwcheck||A delegate queried for validating user/password pairs|
true iff a valid Basic Auth header is present
and the credentials were verified successfully by the validation
if the "Authorization" header is malformed.