opensim-development – Rev 1
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/*
* 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 Nini.Config;
using log4net;
using System;
using System.Reflection;
using System.IO;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Serialization;
using System.Collections.Generic;
using OpenSim.Server.Base;
using OpenSim.Services.Interfaces;
using FriendInfo = OpenSim.Services.Interfaces.FriendInfo;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;
using OpenSim.Framework;
using OpenSim.Framework.Servers.HttpServer;
using OpenMetaverse;
namespace OpenSim.Server.Handlers.Hypergrid
{
public class HGFriendsServerPostHandler : BaseStreamHandler
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private IUserAgentService m_UserAgentService;
private IFriendsSimConnector m_FriendsLocalSimConnector;
private IHGFriendsService m_TheService;
public HGFriendsServerPostHandler(IHGFriendsService service, IUserAgentService uas, IFriendsSimConnector friendsConn) :
base("POST", "/hgfriends")
{
m_TheService = service;
m_UserAgentService = uas;
m_FriendsLocalSimConnector = friendsConn;
m_log.DebugFormat("[HGFRIENDS HANDLER]: HGFriendsServerPostHandler is On ({0})",
(m_FriendsLocalSimConnector == null ? "robust" : "standalone"));
if (m_TheService == null)
m_log.ErrorFormat("[HGFRIENDS HANDLER]: TheService is null!");
}
protected override byte[] ProcessRequest(string path, Stream requestData,
IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
{
StreamReader sr = new StreamReader(requestData);
string body = sr.ReadToEnd();
sr.Close();
body = body.Trim();
//m_log.DebugFormat("[XXX]: query String: {0}", body);
try
{
Dictionary<string, object> request =
ServerUtils.ParseQueryString(body);
if (!request.ContainsKey("METHOD"))
return FailureResult();
string method = request["METHOD"].ToString();
switch (method)
{
case "getfriendperms":
return GetFriendPerms(request);
case "newfriendship":
return NewFriendship(request);
case "deletefriendship":
return DeleteFriendship(request);
/* Same as inter-sim */
case "friendship_offered":
return FriendshipOffered(request);
case "validate_friendship_offered":
return ValidateFriendshipOffered(request);
case "statusnotification":
return StatusNotification(request);
/*
case "friendship_approved":
return FriendshipApproved(request);
case "friendship_denied":
return FriendshipDenied(request);
case "friendship_terminated":
return FriendshipTerminated(request);
case "grant_rights":
return GrantRights(request);
*/
}
m_log.DebugFormat("[HGFRIENDS HANDLER]: unknown method {0}", method);
}
catch (Exception e)
{
m_log.DebugFormat("[HGFRIENDS HANDLER]: Exception {0}", e);
}
return FailureResult();
}
#region Method-specific handlers
byte[] GetFriendPerms(Dictionary<string, object> request)
{
if (!VerifyServiceKey(request))
return FailureResult();
UUID principalID = UUID.Zero;
if (request.ContainsKey("PRINCIPALID"))
UUID.TryParse(request["PRINCIPALID"].ToString(), out principalID);
else
{
m_log.WarnFormat("[HGFRIENDS HANDLER]: no principalID in request to get friend perms");
return FailureResult();
}
UUID friendID = UUID.Zero;
if (request.ContainsKey("FRIENDID"))
UUID.TryParse(request["FRIENDID"].ToString(), out friendID);
else
{
m_log.WarnFormat("[HGFRIENDS HANDLER]: no friendID in request to get friend perms");
return FailureResult();
}
int perms = m_TheService.GetFriendPerms(principalID, friendID);
if (perms < 0)
return FailureResult("Friend not found");
return SuccessResult(perms.ToString());
}
byte[] NewFriendship(Dictionary<string, object> request)
{
bool verified = VerifyServiceKey(request);
FriendInfo friend = new FriendInfo(request);
bool success = m_TheService.NewFriendship(friend, verified);
if (success)
return SuccessResult();
else
return FailureResult();
}
byte[] DeleteFriendship(Dictionary<string, object> request)
{
FriendInfo friend = new FriendInfo(request);
string secret = string.Empty;
if (request.ContainsKey("SECRET"))
secret = request["SECRET"].ToString();
if (secret == string.Empty)
return BoolResult(false);
bool success = m_TheService.DeleteFriendship(friend, secret);
return BoolResult(success);
}
byte[] FriendshipOffered(Dictionary<string, object> request)
{
UUID fromID = UUID.Zero;
UUID toID = UUID.Zero;
string message = string.Empty;
string name = string.Empty;
if (!request.ContainsKey("FromID") || !request.ContainsKey("ToID"))
return BoolResult(false);
if (!UUID.TryParse(request["ToID"].ToString(), out toID))
return BoolResult(false);
message = request["Message"].ToString();
if (!UUID.TryParse(request["FromID"].ToString(), out fromID))
return BoolResult(false);
if (request.ContainsKey("FromName"))
name = request["FromName"].ToString();
bool success = m_TheService.FriendshipOffered(fromID, name, toID, message);
return BoolResult(success);
}
byte[] ValidateFriendshipOffered(Dictionary<string, object> request)
{
FriendInfo friend = new FriendInfo(request);
UUID friendID = UUID.Zero;
if (!UUID.TryParse(friend.Friend, out friendID))
return BoolResult(false);
bool success = m_TheService.ValidateFriendshipOffered(friend.PrincipalID, friendID);
return BoolResult(success);
}
byte[] StatusNotification(Dictionary<string, object> request)
{
UUID principalID = UUID.Zero;
if (request.ContainsKey("userID"))
UUID.TryParse(request["userID"].ToString(), out principalID);
else
{
m_log.WarnFormat("[HGFRIENDS HANDLER]: no userID in request to notify");
return FailureResult();
}
bool online = true;
if (request.ContainsKey("online"))
Boolean.TryParse(request["online"].ToString(), out online);
else
{
m_log.WarnFormat("[HGFRIENDS HANDLER]: no online in request to notify");
return FailureResult();
}
List<string> friends = new List<string>();
int i = 0;
foreach (KeyValuePair<string, object> kvp in request)
{
if (kvp.Key.Equals("friend_" + i.ToString()))
{
friends.Add(kvp.Value.ToString());
i++;
}
}
List<UUID> onlineFriends = m_TheService.StatusNotification(friends, principalID, online);
Dictionary<string, object> result = new Dictionary<string, object>();
if ((onlineFriends == null) || ((onlineFriends != null) && (onlineFriends.Count == 0)))
result["RESULT"] = "NULL";
else
{
i = 0;
foreach (UUID f in onlineFriends)
{
result["friend_" + i] = f.ToString();
i++;
}
}
string xmlString = ServerUtils.BuildXmlResponse(result);
//m_log.DebugFormat("[GRID HANDLER]: resp string: {0}", xmlString);
return Util.UTF8NoBomEncoding.GetBytes(xmlString);
}
#endregion
#region Misc
private bool VerifyServiceKey(Dictionary<string, object> request)
{
if (!request.ContainsKey("KEY") || !request.ContainsKey("SESSIONID"))
{
m_log.WarnFormat("[HGFRIENDS HANDLER]: ignoring request without Key or SessionID");
return false;
}
if (request["KEY"] == null || request["SESSIONID"] == null)
return false;
string serviceKey = request["KEY"].ToString();
string sessionStr = request["SESSIONID"].ToString();
UUID sessionID;
if (!UUID.TryParse(sessionStr, out sessionID) || serviceKey == string.Empty)
return false;
if (!m_UserAgentService.VerifyAgent(sessionID, serviceKey))
{
m_log.WarnFormat("[HGFRIENDS HANDLER]: Key {0} for session {1} did not match existing key. Ignoring request", serviceKey, sessionID);
return false;
}
m_log.DebugFormat("[HGFRIENDS HANDLER]: Verification ok");
return true;
}
private byte[] SuccessResult()
{
XmlDocument doc = new XmlDocument();
XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
"", "");
doc.AppendChild(xmlnode);
XmlElement rootElement = doc.CreateElement("", "ServerResponse",
"");
doc.AppendChild(rootElement);
XmlElement result = doc.CreateElement("", "Result", "");
result.AppendChild(doc.CreateTextNode("Success"));
rootElement.AppendChild(result);
return DocToBytes(doc);
}
private byte[] SuccessResult(string value)
{
XmlDocument doc = new XmlDocument();
XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
"", "");
doc.AppendChild(xmlnode);
XmlElement rootElement = doc.CreateElement("", "ServerResponse",
"");
doc.AppendChild(rootElement);
XmlElement result = doc.CreateElement("", "RESULT", "");
result.AppendChild(doc.CreateTextNode("Success"));
rootElement.AppendChild(result);
XmlElement message = doc.CreateElement("", "Value", "");
message.AppendChild(doc.CreateTextNode(value));
rootElement.AppendChild(message);
return DocToBytes(doc);
}
private byte[] FailureResult()
{
return FailureResult(String.Empty);
}
private byte[] FailureResult(string msg)
{
XmlDocument doc = new XmlDocument();
XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
"", "");
doc.AppendChild(xmlnode);
XmlElement rootElement = doc.CreateElement("", "ServerResponse",
"");
doc.AppendChild(rootElement);
XmlElement result = doc.CreateElement("", "RESULT", "");
result.AppendChild(doc.CreateTextNode("Failure"));
rootElement.AppendChild(result);
XmlElement message = doc.CreateElement("", "Message", "");
message.AppendChild(doc.CreateTextNode(msg));
rootElement.AppendChild(message);
return DocToBytes(doc);
}
private byte[] BoolResult(bool value)
{
XmlDocument doc = new XmlDocument();
XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
"", "");
doc.AppendChild(xmlnode);
XmlElement rootElement = doc.CreateElement("", "ServerResponse",
"");
doc.AppendChild(rootElement);
XmlElement result = doc.CreateElement("", "RESULT", "");
result.AppendChild(doc.CreateTextNode(value.ToString()));
rootElement.AppendChild(result);
return DocToBytes(doc);
}
private byte[] DocToBytes(XmlDocument doc)
{
MemoryStream ms = new MemoryStream();
XmlTextWriter xw = new XmlTextWriter(ms, null);
xw.Formatting = Formatting.Indented;
doc.WriteTo(xw);
xw.Flush();
return ms.ToArray();
}
#endregion
}
}