1 files changed, 96 insertions, 0 deletions
diff --git a/src/tls/tls_session_manager.cpp b/src/tls/tls_session_manager.cpp
new file mode 100644
index 000000000..59fc75b9f
--- /dev/null
+++ b/src/tls/tls_session_manager.cpp
@@ -0,0 +1,96 @@
+/*
+* TLS Session Management
+* (C) 2011 Jack Lloyd
+*
+* Released under the terms of the Botan license
+*/
+
+#include <botan/tls_session_manager.h>
+#include <botan/hex.h>
+#include <botan/time.h>
+
+namespace Botan {
+
+namespace TLS {
+
+bool Session_Manager_In_Memory::load_from_session_str(
+   const std::string& session_str, Session& session)
+   {
+   std::map<std::string, Session>::iterator i = sessions.find(session_str);
+
+   if(i == sessions.end())
+      return false;
+
+   // session has expired, remove it
+   const u64bit now = system_time();
+   if(i->second.start_time() + session_lifetime < now)
+      {
+      sessions.erase(i);
+      return false;
+      }
+
+   session = i->second;
+   return true;
+   }
+
+bool Session_Manager_In_Memory::load_from_session_id(
+   const MemoryRegion<byte>& session_id, Session& session)
+   {
+   return load_from_session_str(hex_encode(session_id), session);
+   }
+
+bool Session_Manager_In_Memory::load_from_host_info(
+   const std::string& hostname, u16bit port, Session& session)
+   {
+   std::map<std::string, std::string>::iterator i;
+
+   if(port > 0)
+      i = host_sessions.find(hostname + ":" + to_string(port));
+   else
+      i = host_sessions.find(hostname);
+
+   if(i == host_sessions.end())
+      return false;
+
+   if(load_from_session_str(i->second, session))
+      return true;
+
+   // was removed from sessions map, remove host_sessions entry
+   host_sessions.erase(i);
+
+   return false;
+   }
+
+void Session_Manager_In_Memory::remove_entry(
+   const MemoryRegion<byte>& session_id)
+   {
+   std::map<std::string, Session>::iterator i =
+      sessions.find(hex_encode(session_id));
+
+   if(i != sessions.end())
+      sessions.erase(i);
+   }
+
+void Session_Manager_In_Memory::save(const Session& session)
+   {
+   if(max_sessions != 0)
+      {
+      /*
+      This removes randomly based on ordering of session ids.
+      Instead, remove oldest first?
+      */
+      while(sessions.size() >= max_sessions)
+         sessions.erase(sessions.begin());
+      }
+
+   const std::string session_id_str = hex_encode(session.session_id());
+
+   sessions[session_id_str] = session;
+
+   if(session.side() == CLIENT && session.sni_hostname() != "")
+      host_sessions[session.sni_hostname()] = session_id_str;
+   }
+
+}
+
+}