1 files changed, 323 insertions, 0 deletions

diff --git a/OpenSim/Server/Handlers/Hypergrid/HGFriendsServerPostHandler.cs b/OpenSim/Server/Handlers/Hypergrid/HGFriendsServerPostHandler.cs
new file mode 100644
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--- /dev/null
+++ b/OpenSim/Server/Handlers/Hypergrid/HGFriendsServerPostHandler.cs
@@ -0,0 +1,323 @@
+/*
+ * 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 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 IFriendsService m_FriendsService;
+        private IUserAgentService m_UserAgentService;
+
+        public HGFriendsServerPostHandler(IFriendsService service, IUserAgentService uservice) :
+                base("POST", "/hgfriends")
+        {
+            m_FriendsService = service;
+            m_UserAgentService = uservice;
+            m_log.DebugFormat("[HGFRIENDS HANDLER]: HGFriendsServerPostHandler is On");
+        }
+
+        public override byte[] Handle(string path, Stream requestData,
+                OSHttpRequest httpRequest, OSHttpResponse 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);
+                }
+                m_log.DebugFormat("[HGFRIENDS HANDLER]: unknown method {0} request {1}", method.Length, 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();
+            }
+
+            string perms = "0";
+            FriendInfo[] friendsInfo = m_FriendsService.GetFriends(principalID);
+            foreach (FriendInfo finfo in friendsInfo)
+            {
+                if (finfo.Friend.StartsWith(friendID.ToString()))
+                    return SuccessResult(finfo.TheirFlags.ToString());
+            }
+
+            return FailureResult("Friend not found");
+        }
+
+        byte[] NewFriendship(Dictionary<string, object> request)
+        {
+            m_log.DebugFormat("[XXX] 1");
+            if (!VerifyServiceKey(request))
+                return FailureResult();
+
+            m_log.DebugFormat("[XXX] 2");
+            // OK, can proceed
+            FriendInfo friend = new FriendInfo(request);
+            UUID friendID;
+            string tmp = string.Empty;
+            m_log.DebugFormat("[XXX] 3");
+            if (!Util.ParseUniversalUserIdentifier(friend.Friend, out friendID, out tmp, out tmp, out tmp, out tmp))
+                return FailureResult();
+
+
+            m_log.DebugFormat("[HGFRIENDS HANDLER]: New friendship {0} {1}", friend.PrincipalID, friend.Friend);
+
+            // If the friendship already exists, return fail
+            FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID);
+            foreach (FriendInfo finfo in finfos)
+                if (finfo.Friend.StartsWith(friendID.ToString()))
+                    return FailureResult();
+
+            // the user needs to confirm when he gets home
+            bool success = m_FriendsService.StoreFriend(friend.PrincipalID.ToString(), friend.Friend, 0);
+
+            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 FailureResult();
+
+            FriendInfo[] finfos = m_FriendsService.GetFriends(friend.PrincipalID);
+            foreach (FriendInfo finfo in finfos)
+            {
+                // We check the secret here
+                if (finfo.Friend.StartsWith(friend.Friend) && finfo.Friend.EndsWith(secret))
+                {
+                    m_log.DebugFormat("[HGFRIENDS HANDLER]: Delete friendship {0} {1}", friend.PrincipalID, friend.Friend);
+                    m_FriendsService.Delete(friend.PrincipalID, finfo.Friend);
+                    m_FriendsService.Delete(finfo.Friend, friend.PrincipalID.ToString());
+
+                    return SuccessResult();
+                }
+            }
+
+            return FailureResult();
+        }
+
+        #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;
+            }
+
+            string serviceKey = request["KEY"].ToString();
+            string sessionStr = request["SESSIONID"].ToString();
+            UUID sessionID;
+            UUID.TryParse(sessionStr, out sessionID);
+
+            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("[XXX] 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[] 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
+    }
+}