core: allow ManagerBase be inherited by RibManager

Change-Id: Ie2613e32460fb109a9f9302a0cc4b4b3400ba9f4
refs: #2857
diff --git a/core/manager-base.cpp b/core/manager-base.cpp
new file mode 100644
index 0000000..bad25b9
--- /dev/null
+++ b/core/manager-base.cpp
@@ -0,0 +1,103 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2016,  Regents of the University of California,
+ *                           Arizona Board of Regents,
+ *                           Colorado State University,
+ *                           University Pierre & Marie Curie, Sorbonne University,
+ *                           Washington University in St. Louis,
+ *                           Beijing Institute of Technology,
+ *                           The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "manager-base.hpp"
+
+namespace nfd {
+
+using ndn::mgmt::ValidateParameters;
+using ndn::mgmt::Authorization;
+
+ManagerBase::ManagerBase(Dispatcher& dispatcher,
+                         const std::string& module)
+  : m_dispatcher(dispatcher)
+  , m_mgmtModuleName(module)
+{
+}
+
+void
+ManagerBase::registerStatusDatasetHandler(const std::string& verb,
+                                          const ndn::mgmt::StatusDatasetHandler& handler)
+{
+  m_dispatcher.addStatusDataset(makeRelPrefix(verb),
+                                ndn::mgmt::makeAcceptAllAuthorization(),
+                                handler);
+}
+
+ndn::mgmt::PostNotification
+ManagerBase::registerNotificationStream(const std::string& verb)
+{
+  return m_dispatcher.addNotificationStream(makeRelPrefix(verb));
+}
+
+void
+ManagerBase::extractRequester(const Interest& interest,
+                              ndn::mgmt::AcceptContinuation accept)
+{
+  const Name& interestName = interest.getName();
+
+  try {
+    ndn::SignatureInfo sigInfo(interestName.at(ndn::signed_interest::POS_SIG_INFO).blockFromValue());
+    if (!sigInfo.hasKeyLocator() ||
+        sigInfo.getKeyLocator().getType() != ndn::KeyLocator::KeyLocator_Name) {
+      return accept("");
+    }
+
+    accept(sigInfo.getKeyLocator().getName().toUri());
+  }
+  catch (const tlv::Error&) {
+    accept("");
+  }
+}
+
+bool
+ManagerBase::validateParameters(const nfd::ControlCommand& command, const ndn::mgmt::ControlParameters& parameters)
+{
+  BOOST_ASSERT(dynamic_cast<const ControlParameters*>(&parameters) != nullptr);
+
+  try {
+    command.validateRequest(static_cast<const ControlParameters&>(parameters));
+  }
+  catch (const ControlCommand::ArgumentError&) {
+    return false;
+  }
+  return true;
+}
+
+void
+ManagerBase::handleCommand(shared_ptr<nfd::ControlCommand> command,
+                           const ControlCommandHandler& handler,
+                           const Name& prefix, const Interest& interest,
+                           const ndn::mgmt::ControlParameters& params,
+                           ndn::mgmt::CommandContinuation done)
+{
+  BOOST_ASSERT(dynamic_cast<const ControlParameters*>(&params) != nullptr);
+  ControlParameters parameters = static_cast<const ControlParameters&>(params);
+  command->applyDefaultsToRequest(parameters);
+  handler(*command, prefix, interest, parameters, done);
+}
+
+
+} // namespace nfd