def digest_auth_user(self, realm, user_name, environ):
user = self._get_realm_entry(realm, user_name)<EOL>if user is None:<EOL><INDENT>return False<EOL><DEDENT>password = user.get("<STR_LIT:password>")<EOL>environ["<STR_LIT>"] = user.get("<STR_LIT>", [])<EOL>return self._compute_http_digest_a1(realm, user_name, password)<EOL>
Computes digest hash A1 part.