auth: mech-oauth2 - Send openid-configuration result field only when available

diff --git a/src/auth/mech-oauth2.c b/src/auth/mech-oauth2.c
index e2dc2dd3d0907bf5e746f370744d8f378c5291dc..f35508331cd97c58bc0e2e186fc93c6b60f2ef42 100644 (file)
--- a/src/auth/mech-oauth2.c
+++ b/src/auth/mech-oauth2.c
@@ -70,7 +70,10 @@ oauth2_fail(struct oauth2_auth_request *oauth2_req, const char *status)
                json_ostream_nwrite_string(joutput, "status", status);
        }
        json_ostream_nwrite_string(joutput, "scope", "mail");
-       json_ostream_nwrite_string(joutput, "openid-configuration", oidc_url);
+       if (*oidc_url != '\0') {
+               json_ostream_nwrite_string(
+                       joutput, "openid-configuration", oidc_url);
+       }
        json_ostream_nascend_object(joutput);
        json_ostream_nfinish_destroy(&joutput);