TT#49255 Consider response code to parse ZTP servers responses

Change-Id: If8dd46bb5d4144354b71817ff30db322aa7bc4e1

lib/NGCP/Panel/Utils/DeviceBootstrap/Grandstream.pm

@@ -30,8 +30,9 @@ sub rpc_server_params{
 sub register_content {
     my $self = shift;
     #TODO: remove actual cid here
+    my $cid = $self->params->{redirect_params}->{cid} // '';
     $self->{register_content} = 
-        '{"cid":"'.$self->params->{redirect_params}->{cid}
+        '{"cid":"'.$cid
         .'","method":"redirectDefault","params":{"macs":["'
         .$self->content_params->{mac}.'"]}}';
 
@@ -100,7 +101,7 @@ sub get_server_time {
 sub get_request_sign{
     my $self = shift;
     my ($request,$time) = @_;
-    my $key = $self->params->{redirect_params}->{key};
+    my $key = $self->params->{redirect_params}->{key} // '';
     $time //= $self->get_server_time();
     my $str2sign = $request.$time;
     my ($sign,$sign_error);

lib/NGCP/Panel/Utils/DeviceBootstrap/VendorRPC.pm

@@ -121,8 +121,8 @@ sub rpc_https_call{
             $response_value = 'Connection timeout';
         }
     }
-    $c->log->info( "response=$response_code; page=$page;" );
-    if($page){
+    $c->log->debug( "response=$response_code; page=$page;" );
+    if($page && $response_code < 300){
         my $rpc_response = $self->parse_rpc_response_page($page);
         $response_value = $self->parse_rpc_response($rpc_response);
     }