First release of open-appsec source code

components/generic_rulebase/evaluators/zone_eval.cc

@@ -0,0 +1,44 @@
+// Copyright (C) 2022 Check Point Software Technologies Ltd. All rights reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "generic_rulebase/evaluators/zone_eval.h"
+
+#include <vector>
+#include <string>
+
+#include "generic_rulebase/zone.h"
+#include "generic_rulebase/rulebase_config.h"
+#include "config.h"
+
+using namespace std;
+
+string ZoneMatcher::ctx_key = "zone_id";
+
+ZoneMatcher::ZoneMatcher(const vector<string> &params)
+{
+    if (params.size() != 1) reportWrongNumberOfParams(ZoneMatcher::getName(), params.size(), 1, 1);
+    zone_id = params[0];
+}
+
+Maybe<bool, Context::Error>
+ZoneMatcher::evalVariable() const
+{
+    I_Environment *env = Singleton::Consume<I_Environment>::by<ZoneMatcher>();
+    auto bc_zone_id_ctx = env->get<GenericConfigId>(ZoneMatcher::ctx_key);
+    if (bc_zone_id_ctx.ok() && *bc_zone_id_ctx == zone_id) return true;
+
+    if (!getProfileAgentSettingWithDefault<bool>(false, "rulebase.enableQueryBasedMatch")) return false;
+
+    auto zone = getConfiguration<Zone>("rulebase", "zones");
+    return zone.ok() && zone.unpack().getId() == zone_id;
+}