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path: root/OpenSim.RegionServer/UserServer/LoginServer.cs
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/*
* Copyright (c) OpenSim project, http://sim.opensecondlife.org/
*
* 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 <organization> 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 <copyright holder> ``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 <copyright holder> 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 Nwc.XmlRpc;
using System;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Collections;
using System.Security.Cryptography;
using System.Xml;
using libsecondlife;
using OpenSim;
using OpenSim.Framework.Interfaces;
using OpenSim.Framework.Grid;
using OpenSim.Framework.Inventory;
using OpenSim.Framework.User;
using OpenSim.Framework.Utilities;

namespace OpenSim.UserServer
{

    /// <summary>
    /// When running in local (default) mode , handles client logins.
    /// </summary>
    public class LoginServer : LoginService, IUserServer
    {
        private IGridServer m_gridServer;
        private ushort _loginPort = 8080;
        public IPAddress clientAddress = IPAddress.Loopback;
        public IPAddress remoteAddress = IPAddress.Any;
        private Socket loginServer;
        private int NumClients;
        private string _defaultResponse;
        private bool userAccounts = false;
        private string _mpasswd;
        private bool _needPasswd = false;
        private LocalUserProfileManager userManager;
        private int m_simPort;
        private string m_simAddr;

        public LocalUserProfileManager LocalUserManager
        {
            get
            {
                return userManager;
            }
        }

        public LoginServer(IGridServer gridServer, string simAddr, int simPort, bool useAccounts)
        {
            m_gridServer = gridServer;
            m_simPort = simPort;
            m_simAddr = simAddr;
            this.userAccounts = useAccounts;
        }

        public void Startup()
        {
            this.InitializeLogin();
            //Thread runLoginProxy = new Thread(new ThreadStart(RunLogin));
            //runLoginProxy.IsBackground = true;
            //runLoginProxy.Start();
        }

        // InitializeLogin: initialize the login 
        private void InitializeLogin()
        {
            this._needPasswd = false;
            //read in default response string
            StreamReader SR;
            string lines;
            SR = File.OpenText("new-login.dat");

            //lines=SR.ReadLine();

            while (!SR.EndOfStream)
            {
                lines = SR.ReadLine();
                _defaultResponse += lines;
                //lines = SR.ReadLine();
            }
            SR.Close();
            this._mpasswd = EncodePassword("testpass");

            userManager = new LocalUserProfileManager(this.m_gridServer, m_simPort, m_simAddr);
            userManager.InitUserProfiles();
            userManager.SetKeys("", "", "", "Welcome to OpenSim");

            //loginServer = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            // loginServer.Bind(new IPEndPoint(remoteAddress, _loginPort));
            //loginServer.Listen(1);
        }

        /* private void RunLogin()
         {
             Console.WriteLine("Starting Login Server");
             try
             {
                 for (; ; )
                 {
                     Socket client = loginServer.Accept();
                     IPEndPoint clientEndPoint = (IPEndPoint)client.RemoteEndPoint;


                     NetworkStream networkStream = new NetworkStream(client);
                     StreamReader networkReader = new StreamReader(networkStream);
                     StreamWriter networkWriter = new StreamWriter(networkStream);

                     try
                     {
                         LoginRequest(networkReader, networkWriter);
                     }
                     catch (Exception e)
                     {
                         Console.WriteLine(e.Message);
                     }

                     networkWriter.Close();
                     networkReader.Close();
                     networkStream.Close();

                     client.Close();

                     // send any packets queued for injection

                 }
             }
             catch (Exception e)
             {
                 Console.WriteLine(e.Message);
                 Console.WriteLine(e.StackTrace);
             }
         }

         // ProxyLogin: proxy a login request
         private void LoginRequest(StreamReader reader, StreamWriter writer)
         {
             lock (this)
             {
                 string line;
                 int contentLength = 0;
                 // read HTTP header
                 do
                 {
                     // read one line of the header
                     line = reader.ReadLine();

                     // check for premature EOF
                     if (line == null)
                         throw new Exception("EOF in client HTTP header");

                     // look for Content-Length
                     Match match = (new Regex(@"Content-Length: (\d+)$")).Match(line);
                     if (match.Success)
                         contentLength = Convert.ToInt32(match.Groups[1].Captures[0].ToString());
                 } while (line != "");

                 // read the HTTP body into a buffer
                 char[] content = new char[contentLength];
                 reader.Read(content, 0, contentLength);

                 if (this.userAccounts)
                 {
                     //ask the UserProfile Manager to process the request
                     string reply = this.userManager.ParseXMLRPC(new String(content));
                     // forward the XML-RPC response to the client
                     writer.WriteLine("HTTP/1.0 200 OK");
                     writer.WriteLine("Content-type: text/xml");
                     writer.WriteLine();
                     writer.WriteLine(reply);
                 }
                 else
                 {
                     //handle ourselves
                     XmlRpcRequest request = (XmlRpcRequest)(new XmlRpcRequestDeserializer()).Deserialize(new String(content));
                     if (request.MethodName == "login_to_simulator")
                     {
                         this.ProcessXmlRequest(request, writer);
                     }
                     else
                     {
                         XmlRpcResponse PresenceErrorResp = new XmlRpcResponse();
                         Hashtable PresenceErrorRespData = new Hashtable();
                         PresenceErrorRespData["reason"] = "XmlRequest"; ;
                         PresenceErrorRespData["message"] = "Unknown Rpc request";
                         PresenceErrorRespData["login"] = "false";
                         PresenceErrorResp.Value = PresenceErrorRespData;
                         string reply = Regex.Replace(XmlRpcResponseSerializer.Singleton.Serialize(PresenceErrorResp), " encoding=\"utf-16\"", "");
                         writer.WriteLine("HTTP/1.0 200 OK");
                         writer.WriteLine("Content-type: text/xml");
                         writer.WriteLine();
                         writer.WriteLine(reply);
                     }
                 }
             }
         }
         */
        //public bool ProcessXmlRequest(XmlRpcRequest request, StreamWriter writer)

        public XmlRpcResponse XmlRpcLoginMethod(XmlRpcRequest request)
        {
            Console.WriteLine("login attempt");
            Hashtable requestData = (Hashtable)request.Params[0];
            string first;
            string last;
            string passwd;
            LLUUID Agent;
            LLUUID Session;

            XmlRpcResponse response = new XmlRpcResponse();

            //get login name
            if (requestData.Contains("first"))
            {
                first = (string)requestData["first"];
            }
            else
            {
                first = "test";
            }

            if (requestData.Contains("last"))
            {
                last = (string)requestData["last"];
            }
            else
            {
                last = "User" + NumClients.ToString();
            }

            if (requestData.Contains("passwd"))
            {
                passwd = (string)requestData["passwd"];
            }
            else
            {
                passwd = "notfound";
            }

            if (!Authenticate(first, last, passwd))
            {
                /* XmlRpcResponse PresenceErrorResp = new XmlRpcResponse();
                 Hashtable PresenceErrorRespData = new Hashtable();
                 PresenceErrorRespData["reason"] = "key"; ;
                 PresenceErrorRespData["message"] = "You have entered an invalid name/password combination. Check Caps/lock.";
                 PresenceErrorRespData["login"] = "false";
                 PresenceErrorResp.Value = PresenceErrorRespData;
                 string reply = Regex.Replace(XmlRpcResponseSerializer.Singleton.Serialize(PresenceErrorResp), " encoding=\"utf-16\"", "");
                 writer.WriteLine("HTTP/1.0 200 OK");
                 writer.WriteLine("Content-type: text/xml");
                 writer.WriteLine();
                 writer.WriteLine(reply);
                 return false;*/

                Hashtable loginError = new Hashtable();
                loginError["reason"] = "key"; ;
                loginError["message"] = "You have entered an invalid name/password combination. Check Caps/lock.";
                loginError["login"] = "false";
                response.Value = loginError;
            }

            NumClients++;

            //create a agent and session LLUUID
            Agent = GetAgentId(first, last);
            int SessionRand = Util.RandomClass.Next(1, 999);
            Session = new LLUUID("aaaabbbb-0200-" + SessionRand.ToString("0000") + "-8664-58f53e442797");
            LLUUID secureSess = LLUUID.Random();
            //create some login info
            Hashtable LoginFlagsHash = new Hashtable();
            LoginFlagsHash["daylight_savings"] = "N";
            LoginFlagsHash["stipend_since_login"] = "N";
            LoginFlagsHash["gendered"] = "Y";
            LoginFlagsHash["ever_logged_in"] = "Y";
            ArrayList LoginFlags = new ArrayList();
            LoginFlags.Add(LoginFlagsHash);

            Hashtable GlobalT = new Hashtable();
            GlobalT["sun_texture_id"] = "cce0f112-878f-4586-a2e2-a8f104bba271";
            GlobalT["cloud_texture_id"] = "fc4b9f0b-d008-45c6-96a4-01dd947ac621";
            GlobalT["moon_texture_id"] = "fc4b9f0b-d008-45c6-96a4-01dd947ac621";
            ArrayList GlobalTextures = new ArrayList();
            GlobalTextures.Add(GlobalT);

            response = (XmlRpcResponse)(new XmlRpcResponseDeserializer()).Deserialize(this._defaultResponse);
            Hashtable responseData = (Hashtable)response.Value;

            responseData["sim_port"] = m_simPort;
            responseData["sim_ip"] = m_simAddr;
            responseData["agent_id"] = Agent.ToStringHyphenated();
            responseData["session_id"] = Session.ToStringHyphenated();
            responseData["secure_session_id"] = secureSess.ToStringHyphenated();
            responseData["circuit_code"] = (Int32)(Util.RandomClass.Next());
            responseData["seconds_since_epoch"] = (Int32)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds;
            responseData["login-flags"] = LoginFlags;
            responseData["global-textures"] = GlobalTextures;

            //inventory
            ArrayList InventoryList = (ArrayList)responseData["inventory-skeleton"];
            Hashtable Inventory1 = (Hashtable)InventoryList[0];
            Hashtable Inventory2 = (Hashtable)InventoryList[1];
            LLUUID BaseFolderID = LLUUID.Random();
            LLUUID InventoryFolderID = LLUUID.Random();
            Inventory2["name"] = "Textures";
            Inventory2["folder_id"] = BaseFolderID.ToStringHyphenated();
            Inventory2["type_default"] = 0;
            Inventory1["folder_id"] = InventoryFolderID.ToStringHyphenated();

            ArrayList InventoryRoot = (ArrayList)responseData["inventory-root"];
            Hashtable Inventoryroot = (Hashtable)InventoryRoot[0];
            Inventoryroot["folder_id"] = InventoryFolderID.ToStringHyphenated();

            CustomiseLoginResponse(responseData, first, last);

            Login _login = new Login();
            //copy data to login object
            _login.First = first;
            _login.Last = last;
            _login.Agent = Agent;
            _login.Session = Session;
            _login.SecureSession = secureSess;
            _login.BaseFolder = BaseFolderID;
            _login.InventoryFolder = InventoryFolderID;

            //working on local computer if so lets add to the gridserver's list of sessions?
            if (m_gridServer.GetName() == "Local")
            {
                ((LocalGridBase)m_gridServer).AddNewSession(_login);
            }

            /* // forward the XML-RPC response to the client
             writer.WriteLine("HTTP/1.0 200 OK");
             writer.WriteLine("Content-type: text/xml");
             writer.WriteLine();

             XmlTextWriter responseWriter = new XmlTextWriter(writer);
             XmlRpcResponseSerializer.Singleton.Serialize(responseWriter, response);
             responseWriter.Close();*/

            return response;
        }

        protected virtual void CustomiseLoginResponse(Hashtable responseData, string first, string last)
        {
        }

        protected virtual LLUUID GetAgentId(string firstName, string lastName)
        {
            LLUUID Agent;
            int AgentRand = Util.RandomClass.Next(1, 9999);
            Agent = new LLUUID("99998888-0100-" + AgentRand.ToString("0000") + "-8ec1-0b1d5cd6aead");
            return Agent;
        }

        protected virtual bool Authenticate(string first, string last, string passwd)
        {
            if (this._needPasswd)
            {
                //every user needs the password to login
                string encodedPass = passwd.Remove(0, 3); //remove $1$
                if (encodedPass == this._mpasswd)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            else
            {
                //do not need password to login
                return true;
            }
        }

        private static string EncodePassword(string passwd)
        {
            Byte[] originalBytes;
            Byte[] encodedBytes;
            MD5 md5;

            md5 = new MD5CryptoServiceProvider();
            originalBytes = ASCIIEncoding.Default.GetBytes(passwd);
            encodedBytes = md5.ComputeHash(originalBytes);

            return Regex.Replace(BitConverter.ToString(encodedBytes), "-", "").ToLower();
        }

        public bool CreateUserAccount(string firstName, string lastName, string password)
        {
            Console.WriteLine("creating new user account");
            string mdPassword = EncodePassword(password);
            Console.WriteLine("with password: " + mdPassword);
            this.userManager.CreateNewProfile(firstName, lastName, mdPassword);
            return true;
        }

        //IUserServer implementation
        public AgentInventory RequestAgentsInventory(LLUUID agentID)
        {
            AgentInventory aInventory = null;
            if (this.userAccounts)
            {
                aInventory = this.userManager.GetUsersInventory(agentID);
            }

            return aInventory;
        }

        public bool UpdateAgentsInventory(LLUUID agentID, AgentInventory inventory)
        {
            return true;
        }

        public void SetServerInfo(string ServerUrl, string SendKey, string RecvKey)
        {

        }

    }


}