319 lines
11 KiB
C#
319 lines
11 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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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 OpenSimulator Project 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 THE DEVELOPERS ``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 THE CONTRIBUTORS 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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using Nini.Config;
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using log4net;
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using System;
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using System.Reflection;
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using System.IO;
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using System.Net;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Xml;
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using System.Xml.Serialization;
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using System.Collections.Generic;
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using OpenSim.Server.Base;
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using OpenSim.Services.Interfaces;
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using FriendInfo = OpenSim.Services.Interfaces.FriendInfo;
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using OpenSim.Framework;
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using OpenSim.Framework.Servers.HttpServer;
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using OpenMetaverse;
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namespace OpenSim.Server.Handlers.Hypergrid
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{
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public class HGFriendsServerPostHandler : BaseStreamHandler
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private IFriendsService m_FriendsService;
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private IUserAgentService m_UserAgentService;
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public HGFriendsServerPostHandler(IFriendsService service, IUserAgentService uservice) :
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base("POST", "/hgfriends")
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{
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m_FriendsService = service;
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m_UserAgentService = uservice;
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m_log.DebugFormat("[HGFRIENDS HANDLER]: HGFriendsServerPostHandler is On");
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}
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public override byte[] Handle(string path, Stream requestData,
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OSHttpRequest httpRequest, OSHttpResponse httpResponse)
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{
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StreamReader sr = new StreamReader(requestData);
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string body = sr.ReadToEnd();
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sr.Close();
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body = body.Trim();
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//m_log.DebugFormat("[XXX]: query String: {0}", body);
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try
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{
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Dictionary<string, object> request =
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ServerUtils.ParseQueryString(body);
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if (!request.ContainsKey("METHOD"))
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return FailureResult();
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string method = request["METHOD"].ToString();
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switch (method)
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{
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case "getfriendperms":
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return GetFriendPerms(request);
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case "newfriendship":
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return NewFriendship(request);
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case "deletefriendship":
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return DeleteFriendship(request);
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}
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m_log.DebugFormat("[HGFRIENDS HANDLER]: unknown method {0} request {1}", method.Length, method);
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}
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catch (Exception e)
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{
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m_log.DebugFormat("[HGFRIENDS HANDLER]: Exception {0}", e);
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}
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return FailureResult();
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}
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#region Method-specific handlers
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byte[] GetFriendPerms(Dictionary<string, object> request)
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{
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if (!VerifyServiceKey(request))
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return FailureResult();
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UUID principalID = UUID.Zero;
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if (request.ContainsKey("PRINCIPALID"))
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UUID.TryParse(request["PRINCIPALID"].ToString(), out principalID);
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else
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{
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m_log.WarnFormat("[HGFRIENDS HANDLER]: no principalID in request to get friend perms");
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return FailureResult();
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}
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UUID friendID = UUID.Zero;
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if (request.ContainsKey("FRIENDID"))
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UUID.TryParse(request["FRIENDID"].ToString(), out friendID);
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else
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{
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m_log.WarnFormat("[HGFRIENDS HANDLER]: no friendID in request to get friend perms");
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return FailureResult();
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}
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FriendInfo[] friendsInfo = m_FriendsService.GetFriends(principalID);
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foreach (FriendInfo finfo in friendsInfo)
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{
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if (finfo.Friend.StartsWith(friendID.ToString()))
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return SuccessResult(finfo.TheirFlags.ToString());
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}
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return FailureResult("Friend not found");
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}
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byte[] NewFriendship(Dictionary<string, object> request)
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{
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if (!VerifyServiceKey(request))
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return FailureResult();
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// OK, can proceed
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FriendInfo friend = new FriendInfo(request);
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UUID friendID;
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string tmp = string.Empty;
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if (!Util.ParseUniversalUserIdentifier(friend.Friend, out friendID, out tmp, out tmp, out tmp, out tmp))
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return FailureResult();
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m_log.DebugFormat("[HGFRIENDS HANDLER]: New friendship {0} {1}", friend.PrincipalID, friend.Friend);
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// If the friendship already exists, return fail
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FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID);
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foreach (FriendInfo finfo in finfos)
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if (finfo.Friend.StartsWith(friendID.ToString()))
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return FailureResult();
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// the user needs to confirm when he gets home
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bool success = m_FriendsService.StoreFriend(friend.PrincipalID.ToString(), friend.Friend, 0);
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if (success)
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return SuccessResult();
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else
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return FailureResult();
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}
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byte[] DeleteFriendship(Dictionary<string, object> request)
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{
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FriendInfo friend = new FriendInfo(request);
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string secret = string.Empty;
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if (request.ContainsKey("SECRET"))
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secret = request["SECRET"].ToString();
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if (secret == string.Empty)
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return FailureResult();
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FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID);
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foreach (FriendInfo finfo in finfos)
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{
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// We check the secret here
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if (finfo.Friend.StartsWith(friend.Friend) && finfo.Friend.EndsWith(secret))
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{
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m_log.DebugFormat("[HGFRIENDS HANDLER]: Delete friendship {0} {1}", friend.PrincipalID, friend.Friend);
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m_FriendsService.Delete(friend.PrincipalID, finfo.Friend);
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m_FriendsService.Delete(finfo.Friend, friend.PrincipalID.ToString());
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return SuccessResult();
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}
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}
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return FailureResult();
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}
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#endregion
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#region Misc
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private bool VerifyServiceKey(Dictionary<string, object> request)
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{
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if (!request.ContainsKey("KEY") || !request.ContainsKey("SESSIONID"))
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{
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m_log.WarnFormat("[HGFRIENDS HANDLER]: ignoring request without Key or SessionID");
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return false;
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}
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string serviceKey = request["KEY"].ToString();
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string sessionStr = request["SESSIONID"].ToString();
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UUID sessionID;
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UUID.TryParse(sessionStr, out sessionID);
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if (!m_UserAgentService.VerifyAgent(sessionID, serviceKey))
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{
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m_log.WarnFormat("[HGFRIENDS HANDLER]: Key {0} for session {1} did not match existing key. Ignoring request", serviceKey, sessionID);
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return false;
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}
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m_log.DebugFormat("[HGFRIENDS HANDLER]: Verification ok");
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return true;
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}
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private byte[] SuccessResult()
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{
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XmlDocument doc = new XmlDocument();
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XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
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"", "");
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doc.AppendChild(xmlnode);
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XmlElement rootElement = doc.CreateElement("", "ServerResponse",
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"");
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doc.AppendChild(rootElement);
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XmlElement result = doc.CreateElement("", "Result", "");
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result.AppendChild(doc.CreateTextNode("Success"));
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rootElement.AppendChild(result);
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return DocToBytes(doc);
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}
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private byte[] SuccessResult(string value)
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{
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XmlDocument doc = new XmlDocument();
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XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
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"", "");
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doc.AppendChild(xmlnode);
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XmlElement rootElement = doc.CreateElement("", "ServerResponse",
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"");
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doc.AppendChild(rootElement);
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XmlElement result = doc.CreateElement("", "Result", "");
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result.AppendChild(doc.CreateTextNode("Success"));
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rootElement.AppendChild(result);
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XmlElement message = doc.CreateElement("", "Value", "");
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message.AppendChild(doc.CreateTextNode(value));
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rootElement.AppendChild(message);
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return DocToBytes(doc);
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}
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private byte[] FailureResult()
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{
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return FailureResult(String.Empty);
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}
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private byte[] FailureResult(string msg)
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{
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XmlDocument doc = new XmlDocument();
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XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
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"", "");
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doc.AppendChild(xmlnode);
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XmlElement rootElement = doc.CreateElement("", "ServerResponse",
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"");
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doc.AppendChild(rootElement);
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XmlElement result = doc.CreateElement("", "Result", "");
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result.AppendChild(doc.CreateTextNode("Failure"));
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rootElement.AppendChild(result);
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XmlElement message = doc.CreateElement("", "Message", "");
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message.AppendChild(doc.CreateTextNode(msg));
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rootElement.AppendChild(message);
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return DocToBytes(doc);
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}
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private byte[] DocToBytes(XmlDocument doc)
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{
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MemoryStream ms = new MemoryStream();
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XmlTextWriter xw = new XmlTextWriter(ms, null);
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xw.Formatting = Formatting.Indented;
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doc.WriteTo(xw);
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xw.Flush();
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return ms.ToArray();
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}
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#endregion
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}
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}
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