Prepare for testbed deployment: name assignment and redirection policy

Change-Id: I7f4da10b763f3891d33820e9c6f4c7cb0eea60ce
diff --git a/src/redirection/redirection-email.cpp b/src/redirection/redirection-email.cpp
new file mode 100644
index 0000000..863eb91
--- /dev/null
+++ b/src/redirection/redirection-email.cpp
@@ -0,0 +1,46 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2017-2022, Regents of the University of California.
+ *
+ * This file is part of ndncert, a certificate management system based on NDN.
+ *
+ * ndncert 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.
+ *
+ * ndncert 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 copies of the GNU General Public License along with
+ * ndncert, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndncert authors and contributors.
+ */
+
+#include "redirection-email.hpp"
+#include <boost/algorithm/string.hpp>
+
+namespace ndncert {
+
+NDNCERT_REGISTER_POLICY_FACTORY(RedirectionEmail, "email");
+
+RedirectionEmail::RedirectionEmail(const std::string& format)
+  : RedirectionPolicy(format)
+{
+  m_domain = format;
+}
+
+bool
+RedirectionEmail::isRedirecting(const std::multimap<std::string, std::string>& params)
+{
+  for (auto it = params.find("email"); it != params.end() && it->first == "email"; it++) {
+    auto i = it->second.rfind('@');
+    if (i != std::string::npos && it->second.substr(i + 1) == m_domain) {
+      return true;
+    }
+  }
+  return false;
+}
+
+} // namespace ndncert