rgw: consider IfExists when evaluating policy conditions

Fixes: http://tracker.ceph.com/issues/20708
Signed-off-by: Casey Bodley <cbodley@redhat.com>

diff --git a/src/rgw/rgw_iam_policy.cc b/src/rgw/rgw_iam_policy.cc
index f90bfac788310e1d45dacd96aa7bf73be0320c1a..a04bb173dd516096e00f299ada4a2a0d65dcce86 100644 (file)
--- a/src/rgw/rgw_iam_policy.cc
+++ b/src/rgw/rgw_iam_policy.cc
@@ -912,7 +912,7 @@ bool Condition::eval(const Environment& env) const {
   }
 
   if (i == env.end()) {
-    return false;
+    return ifexists;
   }
   const auto& s = i->second;