+func (conn *Conn) BaseURL() url.URL {
+ return conn.baseURL
+}
+
+func (conn *Conn) ConfigGet(ctx context.Context) (json.RawMessage, error) {
+ ep := arvados.EndpointConfigGet
+ var resp json.RawMessage
+ err := conn.requestAndDecode(ctx, &resp, ep, nil, nil)
+ return resp, err
+}
+
+func (conn *Conn) Login(ctx context.Context, options arvados.LoginOptions) (arvados.LoginResponse, error) {
+ ep := arvados.EndpointLogin
+ var resp arvados.LoginResponse
+ err := conn.requestAndDecode(ctx, &resp, ep, nil, options)
+ resp.RedirectLocation = conn.relativeToBaseURL(resp.RedirectLocation)
+ return resp, err
+}
+
+// If the given location is a valid URL and its origin is the same as
+// conn.baseURL, return it as a relative URL. Otherwise, return it
+// unmodified.
+func (conn *Conn) relativeToBaseURL(location string) string {
+ u, err := url.Parse(location)
+ if err == nil && u.Scheme == conn.baseURL.Scheme && strings.ToLower(u.Host) == strings.ToLower(conn.baseURL.Host) {
+ u.Opaque = ""
+ u.Scheme = ""
+ u.User = nil
+ u.Host = ""
+ return u.String()
+ } else {
+ return location
+ }
+}
+