Add basic consumer/producer examples
Change-Id: Iee77509efb1ed1444314072c7e03384df4f30d3c
diff --git a/examples/consumer.cpp b/examples/consumer.cpp
new file mode 100644
index 0000000..ae79848
--- /dev/null
+++ b/examples/consumer.cpp
@@ -0,0 +1,124 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2018, Regents of the University of California
+ *
+ * NAC library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * NAC library 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 Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of NAC library authors and contributors.
+ */
+
+#include <ndn-cxx/face.hpp>
+#include <ndn-cxx/security/validator-config.hpp>
+
+// #include <ndn-nac/decryptor.hpp>
+#include "decryptor.hpp"
+
+#include <iostream>
+
+// Enclosing code in ndn simplifies coding (can also use `using namespace ndn`)
+namespace ndn {
+namespace nac {
+// Additional nested namespaces can be used to prevent/limit name conflicts
+namespace examples {
+
+class Consumer : noncopyable
+{
+public:
+ Consumer()
+ : m_face(nullptr, m_keyChain)
+ , m_validator(m_face)
+ , m_decryptor(m_keyChain.getPib().getDefaultIdentity().getDefaultKey(), m_validator, m_keyChain, m_face)
+ {
+ m_validator.load(R"CONF(
+ trust-anchor
+ {
+ type any
+ }
+ )CONF", "fake-config");
+ }
+
+ void
+ run()
+ {
+ Interest interest(Name("/example/testApp/randomData"));
+ interest.setInterestLifetime(2_s); // 2 seconds
+ interest.setMustBeFresh(true);
+
+ m_face.expressInterest(interest,
+ bind(&Consumer::onData, this, _1, _2),
+ bind(&Consumer::onNack, this, _1, _2),
+ bind(&Consumer::onTimeout, this, _1));
+
+ std::cout << "Sending " << interest << std::endl;
+
+ // processEvents will block until the requested data received or timeout occurs
+ m_face.processEvents();
+ }
+
+private:
+ void
+ onData(const Interest& interest, const Data& data)
+ {
+ m_validator.validate(data,
+ [=] (const Data& data) {
+ m_decryptor.decrypt(data.getContent().blockFromValue(),
+ [=] (ConstBufferPtr content) {
+ std::cout << "Decrypted content: "
+ << std::string(reinterpret_cast<const char*>(content->data()), content->size())
+ << std::endl;
+ },
+ [=] (const ErrorCode&, const std::string& error) {
+ std::cerr << "Cannot decrypt data: " << error << std::endl;
+ });
+ },
+ [=] (const Data& data, const ValidationError& error) {
+ std::cerr << "Cannot validate retrieved data: " << error << std::endl;
+ });
+ }
+
+ void
+ onNack(const Interest& interest, const lp::Nack& nack)
+ {
+ std::cout << "received Nack with reason " << nack.getReason()
+ << " for interest " << interest << std::endl;
+ }
+
+ void
+ onTimeout(const Interest& interest)
+ {
+ std::cout << "Timeout " << interest << std::endl;
+ }
+
+private:
+ KeyChain m_keyChain;
+ Face m_face;
+ ValidatorConfig m_validator;
+ Decryptor m_decryptor;
+};
+
+} // namespace examples
+} // namespace nac
+} // namespace ndn
+
+int
+main(int argc, char** argv)
+{
+ ndn::nac::examples::Consumer consumer;
+ try {
+ consumer.run();
+ }
+ catch (const std::exception& e) {
+ std::cerr << "ERROR: " << e.what() << std::endl;
+ }
+ return 0;
+}