empty trust_root is no trust root.

work around some thoughtful and considerate RPs that take the pain of sending
the trust_root parameter, but do not go into as much trouble as setting it to
anything but an empty string.

Signed-off-by: Michael Krelin <hacker@klever.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/basic_op.cc b/lib/basic_op.cc
index fa659ac..511b51a 100644
--- a/lib/basic_op.cc
+++ b/lib/basic_op.cc
@@ -154,2 +154,4 @@ namespace opkele {
                 realm = inm.get_field("realm");
+                if(realm.empty())
+                    throw failed_lookup(OPKELE_CP_ "Empty realm doesn't count");
             }catch(failed_lookup&) {
@@ -157,2 +159,4 @@ namespace opkele {
                     realm = inm.get_field("trust_root");
+                    if(realm.empty())
+                        throw failed_lookup(OPKELE_CP_ "Empty trust_root doesn't count");
                 }catch(failed_lookup&) {
@@ -167,2 +171,4 @@ namespace opkele {
                 realm = inm.get_field("trust_root");
+                if(realm.empty())
+                    throw failed_lookup(OPKELE_CP_ "Empty trust_root doesn't count");
             }catch(failed_lookup&) {