mgmt: CommandAuthenticator

refs #2063

Change-Id: I19a82d8d1fdfb3cc5a003166b1a8c1c32bbf24b5
diff --git a/daemon/mgmt/command-authenticator.hpp b/daemon/mgmt/command-authenticator.hpp
new file mode 100644
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+++ b/daemon/mgmt/command-authenticator.hpp
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+/* -*- 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/>.
+ */
+
+#ifndef NFD_DAEMON_MGMT_COMMAND_AUTHENTICATOR_HPP
+#define NFD_DAEMON_MGMT_COMMAND_AUTHENTICATOR_HPP
+
+#include "core/config-file.hpp"
+#include <ndn-cxx/mgmt/dispatcher.hpp>
+#include <ndn-cxx/security/command-interest-validator.hpp>
+#include <ndn-cxx/security/public-key.hpp>
+
+namespace nfd {
+
+/** \brief provides ControlCommand authorization according to NFD configuration file
+ */
+class CommandAuthenticator : public enable_shared_from_this<CommandAuthenticator>, noncopyable
+{
+public:
+  static shared_ptr<CommandAuthenticator>
+  create();
+
+  void
+  setConfigFile(ConfigFile& configFile);
+
+  /** \return an Authorization function for module/verb command
+   *  \param module management module name
+   *  \param verb command verb; currently it's ignored
+   *  \note This must be called before parsing configuration file
+   */
+  ndn::mgmt::Authorization
+  makeAuthorization(const std::string& module, const std::string& verb);
+
+private:
+  CommandAuthenticator();
+
+  /** \brief process "authorizations" section
+   *  \throw ConfigFile::Error on parse error
+   */
+  void
+  processConfig(const ConfigSection& section, bool isDryRun, const std::string& filename);
+
+  static std::pair<bool, Name>
+  extractKeyName(const Interest& interest);
+
+private:
+  struct AuthorizedCerts
+  {
+    bool allowAny = false;
+    std::unordered_map<Name, ndn::PublicKey> certs; ///< keyName => publicKey
+  };
+  std::unordered_map<std::string, AuthorizedCerts> m_moduleAuth; ///< module => certs
+
+  ndn::security::CommandInterestValidator m_validator;
+};
+
+} // namespace nfd
+
+#endif // NFD_DAEMON_MGMT_COMMAND_AUTHENTICATOR_HPP