/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSimulator Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.Threading;
using System.Reflection;
using OpenSim.Framework;
using OpenSim.Framework.Console;
using OpenSim.Framework.Servers.HttpServer;
using log4net;
using Nini.Config;

namespace OpenSim.Server.Base
{
    public class HttpServerBase : ServicesServerBase
    {
        // Logger
        //
        private static readonly ILog m_Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); 

        // The http server instance
        //
        protected BaseHttpServer m_HttpServer = null;
        protected uint m_Port = 0;
        protected Dictionary<uint, BaseHttpServer> m_Servers =
            new Dictionary<uint, BaseHttpServer>();
        protected uint m_consolePort = 0;

        public IHttpServer HttpServer
        {
            get { return m_HttpServer; }
        }

        public uint DefaultPort
        {
            get { return m_Port; }
        }

        public IHttpServer GetHttpServer(uint port)
        {
            m_Log.InfoFormat("[SERVER]: Requested port {0}", port);
            if (port == m_Port)
                return HttpServer;

            if (m_Servers.ContainsKey(port))
                return m_Servers[port];

            m_Servers[port] = new BaseHttpServer(port);
            
            m_Log.InfoFormat("[SERVER]: Starting new HTTP server on port {0}", port);
            m_Servers[port].Start();

            return m_Servers[port];
        }

        // Handle all the automagical stuff
        //
        public HttpServerBase(string prompt, string[] args) : base(prompt, args)
        {
        }

        protected override void ReadConfig()
        {
            IConfig networkConfig = m_Config.Configs["Network"];

            if (networkConfig == null)
            {
                System.Console.WriteLine("Section 'Network' not found, server can't start");
                Thread.CurrentThread.Abort();
            }
            uint port = (uint)networkConfig.GetInt("port", 0);

            if (port == 0)
            {

                Thread.CurrentThread.Abort();
            }
            //
            bool ssl_main = networkConfig.GetBoolean("https_main",false);
            bool ssl_listener = networkConfig.GetBoolean("https_listener",false);

            m_consolePort = (uint)networkConfig.GetInt("ConsolePort", 0);
            m_Port = port;
            //
            // This is where to make the servers:
            //
            //
            // Make the base server according to the port, etc.
            // ADD: Possibility to make main server ssl
            // Then, check for https settings and ADD a server to
            // m_Servers
            //
            if ( !ssl_main )
            {
                m_HttpServer = new BaseHttpServer(port);

            }
            else
            {
                string cert_path = networkConfig.GetString("cert_path",String.Empty);
                if ( cert_path == String.Empty )
                {
                    System.Console.WriteLine("Path to X509 certificate is missing, server can't start.");
                    Thread.CurrentThread.Abort();
                }
                string cert_pass = networkConfig.GetString("cert_pass",String.Empty);
                if ( cert_pass == String.Empty )
                {
                    System.Console.WriteLine("Password for X509 certificate is missing, server can't start.");
                    Thread.CurrentThread.Abort();
                }
                m_HttpServer = new BaseHttpServer(port, ssl_main, cert_path, cert_pass);
            }

            MainServer.Instance = m_HttpServer;

            // If https_listener = true, then add an ssl listener on the https_port...
            if ( ssl_listener == true ) {

                uint https_port = (uint)networkConfig.GetInt("https_port", 0);

                string cert_path = networkConfig.GetString("cert_path",String.Empty);
                if ( cert_path == String.Empty )
                {
                    System.Console.WriteLine("Path to X509 certificate is missing, server can't start.");
                    Thread.CurrentThread.Abort();
                }
                string cert_pass = networkConfig.GetString("cert_pass",String.Empty);
                if ( cert_pass == String.Empty )
                {
                    System.Console.WriteLine("Password for X509 certificate is missing, server can't start.");
                    Thread.CurrentThread.Abort();
                }
                // Add our https_server
                BaseHttpServer server = null;
                server = new BaseHttpServer(https_port, ssl_listener, cert_path, cert_pass);
                if (server != null)
                {
                    m_Log.InfoFormat("[SERVER]: Starting HTTPS server on port {0}", https_port);
                    m_Servers.Add(https_port,server);
                }
                else
                    System.Console.WriteLine(String.Format("Failed to start HTTPS server on port {0}",https_port));
            }
        }

        protected override void Initialise()
        {
            m_Log.InfoFormat("[SERVER]: Starting HTTP server on port {0}", m_HttpServer.Port);
            m_HttpServer.Start();

            if (m_Servers.Count > 0)
            {
                foreach (BaseHttpServer s in m_Servers.Values)
                {
                    if (!s.UseSSL)
                        m_Log.InfoFormat("[SERVER]: Starting HTTP server on port {0}", s.Port);
                    else
                        m_Log.InfoFormat("[SERVER]: Starting HTTPS server on port {0}", s.Port);

                    s.Start();
                }
            }

            if (MainConsole.Instance is RemoteConsole)
            {
                if (m_consolePort == 0)
                    ((RemoteConsole)MainConsole.Instance).SetServer(m_HttpServer);
                else
                    ((RemoteConsole)MainConsole.Instance).SetServer(GetHttpServer(m_consolePort));
            }
        }
    }
}
