Callback used by #SoupAuthDomainDigest for authentication purposes.
The application should look up username in its password database, and return the corresponding encoded password (see soup.auth_domain_digest.AuthDomainDigest.encodePassword.
the encoded password, or null if username is not a valid user. domain will free the password when it is done with it.
Callback used by #SoupAuthDomainDigest for authentication purposes.
The application should look up username in its password database, and return the corresponding encoded password (see soup.auth_domain_digest.AuthDomainDigest.encodePassword.