323 lines
9.7 KiB
C#
323 lines
9.7 KiB
C#
/*
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* Copyright (c) OpenSim project, http://sim.opensecondlife.org/
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the <organization> nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY <copyright holder> ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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using Nwc.XmlRpc;
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using System;
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using System.IO;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading;
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using System.Collections;
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using System.Security.Cryptography;
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using System.Xml;
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using libsecondlife;
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using OpenSim;
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namespace OpenSim.GridServers
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{
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/// <summary>
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/// When running in local (default) mode , handles client logins.
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/// </summary>
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public class LoginServer
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{
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public LoginServer(IGridServer gridServer)
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{
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_gridServer = gridServer;
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}
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private Login _login;
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private IGridServer _gridServer;
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private ushort _loginPort = 8080;
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public IPAddress clientAddress = IPAddress.Loopback;
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public IPAddress remoteAddress = IPAddress.Any;
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private Socket loginServer;
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private Random RandomClass = new Random();
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private int NumClients;
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private string _defaultResponse;
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private string _mpasswd;
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private bool _needPasswd=false;
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// InitializeLoginProxy: initialize the login proxy
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private void InitializeLoginProxy() {
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loginServer = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
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loginServer.Bind(new IPEndPoint(remoteAddress, _loginPort));
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loginServer.Listen(1);
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this._needPasswd=false;
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//read in default response string
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StreamReader SR;
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string lines;
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SR=File.OpenText("new-login.dat");
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//lines=SR.ReadLine();
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while(!SR.EndOfStream)
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{
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lines = SR.ReadLine();
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_defaultResponse += lines;
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//lines = SR.ReadLine();
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}
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SR.Close();
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this._mpasswd = EncodePassword("testpass");
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}
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public void Startup()
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{
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this.InitializeLoginProxy();
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Thread runLoginProxy = new Thread(new ThreadStart(RunLoginProxy));
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runLoginProxy.IsBackground = true;
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runLoginProxy.Start();
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}
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private void RunLoginProxy()
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{
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Console.WriteLine("Starting Login Server");
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try
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{
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for (;;)
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{
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Socket client = loginServer.Accept();
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IPEndPoint clientEndPoint = (IPEndPoint)client.RemoteEndPoint;
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NetworkStream networkStream = new NetworkStream(client);
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StreamReader networkReader = new StreamReader(networkStream);
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StreamWriter networkWriter = new StreamWriter(networkStream);
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try
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{
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ProxyLogin(networkReader, networkWriter);
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}
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catch (Exception e)
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{
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Console.WriteLine(e.Message);
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}
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networkWriter.Close();
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networkReader.Close();
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networkStream.Close();
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client.Close();
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// send any packets queued for injection
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}
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}
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catch (Exception e)
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{
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Console.WriteLine(e.Message);
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Console.WriteLine(e.StackTrace);
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}
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}
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// ProxyLogin: proxy a login request
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private void ProxyLogin(StreamReader reader, StreamWriter writer)
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{
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lock(this)
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{
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string line;
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int contentLength = 0;
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// read HTTP header
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do
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{
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// read one line of the header
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line = reader.ReadLine();
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// check for premature EOF
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if (line == null)
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throw new Exception("EOF in client HTTP header");
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// look for Content-Length
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Match match = (new Regex(@"Content-Length: (\d+)$")).Match(line);
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if (match.Success)
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contentLength = Convert.ToInt32(match.Groups[1].Captures[0].ToString());
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} while (line != "");
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// read the HTTP body into a buffer
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char[] content = new char[contentLength];
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reader.Read(content, 0, contentLength);
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XmlRpcRequest request = (XmlRpcRequest)(new XmlRpcRequestDeserializer()).Deserialize(new String(content));
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if(request.MethodName == "login_to_simulator")
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{
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Hashtable requestData = (Hashtable)request.Params[0];
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string first;
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string last;
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string passwd;
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LLUUID Agent;
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LLUUID Session;
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//get login name
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if(requestData.Contains("first"))
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{
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first = (string)requestData["first"];
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}
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else
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{
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first = "test";
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}
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if(requestData.Contains("last"))
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{
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last = (string)requestData["last"];
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}
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else
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{
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last = "User"+NumClients.ToString();
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}
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if(requestData.Contains("passwd"))
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{
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passwd = (string)requestData["passwd"];
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}
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else
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{
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passwd = "notfound";
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}
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if( !Authenticate(first, last, passwd))
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{
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// Fail miserably
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writer.WriteLine("HTTP/1.0 403 Authentication Forbidden");
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writer.WriteLine();
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return;
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}
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NumClients++;
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//create a agent and session LLUUID
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Agent = GetAgentId( first, last );
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int SessionRand = this.RandomClass.Next(1,999);
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Session = new LLUUID("aaaabbbb-0200-"+SessionRand.ToString("0000")+"-8664-58f53e442797");
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XmlRpcResponse response =(XmlRpcResponse)(new XmlRpcResponseDeserializer()).Deserialize(this._defaultResponse);
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Hashtable responseData = (Hashtable)response.Value;
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responseData["sim_port"] = OpenSim_Main.cfg.IPListenPort;
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responseData["sim_ip"] = OpenSim_Main.cfg.IPListenAddr;
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responseData["agent_id"] = Agent.ToStringHyphenated();
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responseData["session_id"] = Session.ToStringHyphenated();
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ArrayList InventoryList = (ArrayList) responseData["inventory-skeleton"];
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Hashtable Inventory1 = (Hashtable)InventoryList[0];
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Hashtable Inventory2 = (Hashtable)InventoryList[1];
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LLUUID BaseFolderID = LLUUID.Random();
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LLUUID InventoryFolderID = LLUUID.Random();
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Inventory2["name"] = "Base";
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Inventory2["folder_id"] = BaseFolderID.ToStringHyphenated();
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Inventory2["type_default"] =6;
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Inventory1["folder_id"] = InventoryFolderID.ToStringHyphenated();
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ArrayList InventoryRoot = (ArrayList) responseData["inventory-root"];
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Hashtable Inventoryroot = (Hashtable)InventoryRoot[0];
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Inventoryroot["folder_id"] = InventoryFolderID.ToStringHyphenated();
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CustomiseLoginResponse( responseData, first, last );
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this._login = new Login();
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//copy data to login object
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_login.First = first;
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_login.Last = last;
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_login.Agent = Agent;
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_login.Session = Session;
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_login.BaseFolder = BaseFolderID;
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_login.InventoryFolder = InventoryFolderID;
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//working on local computer so lets add to the gridserver's list of sessions
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((LocalGridServer)this._gridServer).AddNewSession(_login);
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// forward the XML-RPC response to the client
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writer.WriteLine("HTTP/1.0 200 OK");
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writer.WriteLine("Content-type: text/xml");
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writer.WriteLine();
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XmlTextWriter responseWriter = new XmlTextWriter(writer);
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XmlRpcResponseSerializer.Singleton.Serialize(responseWriter, response);
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responseWriter.Close();
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}
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else
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{
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writer.WriteLine("HTTP/1.0 403 Authentication Forbidden");
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writer.WriteLine();
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}
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}
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}
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protected virtual void CustomiseLoginResponse( Hashtable responseData, string first, string last )
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{
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}
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protected virtual LLUUID GetAgentId(string firstName, string lastName)
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{
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LLUUID Agent;
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int AgentRand = this.RandomClass.Next(1,9999);
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Agent = new LLUUID("99998888-0100-"+AgentRand.ToString("0000")+"-8ec1-0b1d5cd6aead");
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return Agent;
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}
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protected virtual bool Authenticate(string first, string last, string passwd)
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{
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if(this._needPasswd)
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{
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//every user needs the password to login
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string encodedPass = passwd.Remove(0,3); //remove $1$
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if(encodedPass == this._mpasswd)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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else
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{
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//do not need password to login
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return true;
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}
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}
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private static string EncodePassword(string passwd)
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{
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Byte[] originalBytes;
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Byte[] encodedBytes;
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MD5 md5;
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md5 = new MD5CryptoServiceProvider();
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originalBytes = ASCIIEncoding.Default.GetBytes(passwd);
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encodedBytes = md5.ComputeHash(originalBytes);
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return Regex.Replace(BitConverter.ToString(encodedBytes), "-", "").ToLower();
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}
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}
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}
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