update: Process Name prefix update commands

refs #1834

Change-Id: I18c86d0743b4a10ce3a8681f202b59a86602e43f
diff --git a/src/update/prefix-update-processor.hpp b/src/update/prefix-update-processor.hpp
new file mode 100644
index 0000000..164bb49
--- /dev/null
+++ b/src/update/prefix-update-processor.hpp
@@ -0,0 +1,137 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2015,  The University of Memphis,
+ *                           Regents of the University of California,
+ *                           Arizona Board of Regents.
+ *
+ * This file is part of NLSR (Named-data Link State Routing).
+ * See AUTHORS.md for complete list of NLSR authors and contributors.
+ *
+ * NLSR 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.
+ *
+ * NLSR 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
+ * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#ifndef UPDATE_PREFIX_UPDATE_PROCESSOR_HPP
+#define UPDATE_PREFIX_UPDATE_PROCESSOR_HPP
+
+#include "name-prefix-list.hpp"
+#include "test-access-control.hpp"
+#include "validator.hpp"
+
+#include <ndn-cxx/face.hpp>
+#include <ndn-cxx/interest.hpp>
+#include <ndn-cxx/management/nfd-control-command.hpp>
+#include <ndn-cxx/management/nfd-control-parameters.hpp>
+#include <ndn-cxx/security/certificate-cache-ttl.hpp>
+#include <ndn-cxx/security/key-chain.hpp>
+
+#include <boost/noncopyable.hpp>
+#include <boost/property_tree/ptree.hpp>
+
+namespace nlsr {
+
+class Lsdb;
+class SyncLogicHandler;
+
+namespace update {
+
+typedef boost::property_tree::ptree ConfigSection;
+
+class PrefixUpdateProcessor : boost::noncopyable
+{
+public:
+  class Error : public std::runtime_error
+  {
+  public:
+    explicit
+    Error(const std::string& what)
+      : std::runtime_error(what)
+    {
+    }
+  };
+
+public:
+  PrefixUpdateProcessor(ndn::Face& face,
+                        NamePrefixList& namePrefixList,
+                        Lsdb& lsdb,
+                        SyncLogicHandler& sync,
+                        const ndn::Name broadcastPrefix,
+                        ndn::KeyChain& keyChain,
+                        ndn::shared_ptr<ndn::CertificateCacheTtl> certificateCache);
+
+  void
+  loadValidator(ConfigSection section, const std::string& filename);
+
+  void
+  startListening();
+
+private:
+  void
+  onInterest(const ndn::Interest& request);
+
+  void
+  sendResponse(const std::shared_ptr<const ndn::Interest>& request,
+               uint32_t code,
+               const std::string& text);
+
+  /** \brief adds desired name prefix to the advertised name prefix list
+   */
+  void
+  advertise(const std::shared_ptr<const ndn::Interest>& request,
+            const ndn::nfd::ControlParameters& parameters);
+
+  /** \brief removes desired name prefix from the advertised name prefix list
+   */
+  void
+  withdraw(const std::shared_ptr<const ndn::Interest>& request,
+           const ndn::nfd::ControlParameters& parameters);
+
+  void
+  onCommandValidated(const std::shared_ptr<const ndn::Interest>& request);
+
+  void
+  onCommandValidationFailed(const std::shared_ptr<const ndn::Interest>& request,
+                            const std::string& failureInfo);
+
+  static bool
+  extractParameters(const ndn::name::Component& parameterComponent,
+                    ndn::nfd::ControlParameters& extractedParameters);
+
+  bool
+  validateParameters(const ndn::nfd::ControlCommand& command,
+                     const ndn::nfd::ControlParameters& parameters);
+
+PUBLIC_WITH_TESTS_ELSE_PRIVATE:
+  Validator&
+  getValidator()
+  {
+    return m_validator;
+  }
+
+private:
+  ndn::Face& m_face;
+  NamePrefixList& m_namePrefixList;
+  Lsdb& m_lsdb;
+  SyncLogicHandler& m_sync;
+  ndn::KeyChain& m_keyChain;
+  Validator m_validator;
+
+  const ndn::Name COMMAND_PREFIX; // /localhost/nlsr/prefix-update
+
+  static const ndn::Name::Component MODULE_COMPONENT;
+  static const ndn::Name::Component ADVERTISE_VERB;
+  static const ndn::Name::Component WITHDRAW_VERB;
+};
+
+} // namespace update
+} // namespace nlsr
+
+#endif // UPDATE_PREFIX_UPDATE_PROCESSOR_HPP