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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
 *            connection.cc
 *
 *  Fri May  7 11:35:44 CEST 2010
 *  Copyright 2010 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro 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 2 of the License, or
 *  (at your option) any later version.
 *
 *  Pracro 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 Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "connection.h"

#include "transactionhandler.h"
#include "xml_encode_decode.h"

static std::string error_box(std::string message)
{
  std::string errorbox =
    "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
    "<pracro version=\"1.0\">\n"
    "  <error>" + message + "</error>\n"
    "</pracro>\n";
  return errorbox;
}

Connection::Connection(Environment &e, std::string sid, bool c)
  : env(e), parser(&transaction)
{
  PRACRO_DEBUG(connection, "[%p] CREATE\n", this);

  sessionid = sid;
  commit = c;
}

Connection::~Connection()
{
  PRACRO_DEBUG(connection, "[%p] DESTROY\n", this);
}

bool Connection::handle(const char *data, size_t size)
{
  Session *session = NULL;
  if(sessionid == "") {
    // Create new session
    session = env.sessions.newSession();
  } else {
    // Attach to old session
    session = env.sessions.session(sessionid);

    // Session didn't exist - create a new one anyway.
    if(session == NULL) session = env.sessions.newSession();
  }
  
  if(session == NULL) {
    PRACRO_ERR(connection, "New session could not be created.");
    response = error_box(xml_encode("New session could not be created."));
    return true;
  }
  
  sessionid = session->id();

  if(!data || !size) return true;

  try {
    if(parser.parse(data, size)) {
      {
        SessionAutolock lock(*session);
        response = handleTransaction(transaction, env, *session);
      }

      if(commit) {
        session->commit();
        env.sessions.deleteSession(session->id());
      }

      return true;
    }
  } catch(...) {
    PRACRO_ERR(server, "Failed to parse data!\n");
    response = error_box(xml_encode("XML Parse error."));
    return true;
  }

  return false;
}

std::string Connection::getResponse()
{
  return response;
}

std::string Connection::getSessionID()
{
  return sessionid;
}

#ifdef TEST_CONNECTION
//Additional dependency files
//deps:
//Required cflags (autoconf vars may be used)
//cflags:
//Required link options (autoconf vars may be used)
//libs:
#include "test.h"

TEST_BEGIN;

// TODO: Put some testcode here (see test.h for usable macros).

TEST_END;

#endif/*TEST_CONNECTION*/