tools: Combine all security tools into one; Add Export/Import/Delete/Unlock/AddACL command

There might be some bugs in the tools combined, but the purpose of this commit is to combine the tools rather than fixing bugs.

Change-Id: I2924067d666eacfc278ebd07e7e178c54a2f7362
diff --git a/tools/ndnsec-export.hpp b/tools/ndnsec-export.hpp
new file mode 100644
index 0000000..c7753f3
--- /dev/null
+++ b/tools/ndnsec-export.hpp
@@ -0,0 +1,130 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ * BSD license, See the LICENSE file for more information
+ * Author: Yingdi Yu <yingdi@cs.ucla.edu>
+ */
+
+#ifndef NDNSEC_EXPORT_HPP
+#define NDNSEC_EXPORT_HPP
+
+#include "ndnsec-util.hpp"
+
+int 
+ndnsec_export(int argc, char** argv)
+{
+  using namespace ndn;
+  namespace po = boost::program_options;
+
+  std::string identityStr;
+  std::string output;
+  std::string exportPassword;
+
+  po::options_description desc("General Usage\n  ndnsec export [-h] [-o output] identity \nGeneral options");
+  desc.add_options()
+    ("help,h", "Produce help message")
+    ("output,o", po::value<std::string>(&output), "(Optional) output file, stdout if not specified")
+    ("identity,i", po::value<std::string>(&identityStr), "Identity to export")
+    ;
+
+  po::positional_options_description p;
+  p.add("identity", 1);
+
+  po::variables_map vm;
+  try
+    {
+      po::store(po::command_line_parser(argc, argv).options(desc).positional(p).run(), vm);
+      po::notify(vm);
+    }
+  catch (std::exception &e)
+    {
+      std::cerr << "ERROR: " << e.what() << std::endl;
+      return 1;
+    }
+
+  if (vm.count("help"))
+    {
+      std::cerr << desc << std::endl;
+      return 0;
+    }
+
+  if (!vm.count("output"))
+    output = "-";
+
+  Block wire;
+  Name identity(identityStr);
+
+  try
+    {
+      KeyChain keyChain;
+      
+      int count = 3;
+      while(!getPassword(exportPassword, "Passphrase for the private key: "))
+        {
+          count--;
+          if(count <= 0)
+            {
+              std::cerr << "ERROR: invalid password" << std::endl;
+              memset(const_cast<char*>(exportPassword.c_str()), 0, exportPassword.size());
+              return 1;
+            }
+        }
+      wire = keyChain.exportIdentity(identity, exportPassword);
+      memset(const_cast<char*>(exportPassword.c_str()), 0, exportPassword.size());
+      wire.encode();
+    }
+  catch(Block::Error& e)
+    {
+      std::cerr << "ERROR: " << e.what() << std::endl;
+      memset(const_cast<char*>(exportPassword.c_str()), 0, exportPassword.size());
+      return 1;
+    }
+  catch(SecPublicInfo::Error& e)
+    {
+      std::cerr << "ERROR: " << e.what() << std::endl;
+      memset(const_cast<char*>(exportPassword.c_str()), 0, exportPassword.size());
+      return 1;
+    }
+  catch(SecTpm::Error& e)
+    {
+      std::cerr << "ERROR: " << e.what() << std::endl;
+      memset(const_cast<char*>(exportPassword.c_str()), 0, exportPassword.size());
+      return 1;
+    }
+
+  std::ostream* ofs;
+  std::ostream* ffs = 0;
+  if(output == "-")
+    ofs = &std::cout;
+  else
+    {
+      ofs = new std::ofstream(output.c_str());
+      ffs = ofs;
+    }
+
+  try
+    {
+      using namespace CryptoPP;
+
+      StringSource ss(wire.wire(), wire.size(), true,
+                      new Base64Encoder(new FileSink(*ofs), true, 64));
+      if(ffs)
+        delete ffs;
+      ffs = 0;
+      ofs = 0;
+    }
+  catch(CryptoPP::Exception& e)
+    {
+      if(ffs)
+        delete ffs;
+      ffs = 0;
+      ofs = 0;
+
+      std::cerr << "ERROR: " << e.what() << std::endl;
+      return 1;
+    }
+
+  return 0;
+}
+
+#endif //NDNSEC_EXPORT_HPP