+ <para>
+ Setting <literal>authentcationMode</literal> specifies how
+ authentication parameters are encoded for HTTP. The default is
+ "<literal>basic</literal>" where <literal>user</literal> and
+ <literal>password</literal> are encoded by using HTTP basic
+ authentication.
+ </para>
+ <para>
+ If <literal>authentcationMode</literal> is "<literal>url</literal>", then
+ user and password are encoded in the URL by parameters
+ <literal>x-username</literal> and <literal>x-password</literal> as
+ given by the SRU standard.
+ </para>