aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Region/OptionalModules/Avatar/Chat/RegionState.cs
blob: d4fe5e0cdedda141f5dd1e7c5db4dcce291cad80 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
/*
 * 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 System;
using System.Collections.Generic;
using System.Reflection;
using System.Text.RegularExpressions;
using log4net;
using Nini.Config;
using OpenSim.Framework;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;

namespace OpenSim.Region.OptionalModules.Avatar.Chat
{
    //    An instance of this class exists for every active region

    internal class RegionState
    {
        private static readonly ILog m_log =
            LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        private static readonly OpenMetaverse.Vector3 CenterOfRegion = new OpenMetaverse.Vector3(((int)Constants.RegionSize * 0.5f), ((int)Constants.RegionSize * 0.5f), 20);
        private const int DEBUG_CHANNEL = 2147483647;

        private static int _idk_ = 0;

        // Runtime variables; these values are assigned when the
        // IrcState is created and remain constant thereafter.

        internal string Region = String.Empty;
        internal string Host = String.Empty;
        internal string LocX = String.Empty;
        internal string LocY = String.Empty;
        internal string IDK = String.Empty;

        // System values - used only be the IRC classes themselves

        internal ChannelState cs = null; // associated IRC configuration
        internal Scene scene = null; // associated scene
        internal IConfig config = null; // configuration file reference
        internal bool enabled = true;

        //AgentAlert
        internal bool showAlert = false;
        internal string alertMessage = String.Empty;
        internal IDialogModule dialogModule = null;

        // This list is used to keep track of who is here, and by
        // implication, who is not.

        internal List<IClientAPI> clients = new List<IClientAPI>();

        // Setup runtime variable values

        public RegionState(Scene p_scene, IConfig p_config)
        {
            scene = p_scene;
            config = p_config;

            Region = scene.RegionInfo.RegionName;
            Host = scene.RegionInfo.ExternalHostName;
            LocX = Convert.ToString(scene.RegionInfo.RegionLocX);
            LocY = Convert.ToString(scene.RegionInfo.RegionLocY);
            IDK = Convert.ToString(_idk_++);

            showAlert = config.GetBoolean("alert_show", false);
            string alertServerInfo = String.Empty;

            if (showAlert)
            {
                bool showAlertServerInfo = config.GetBoolean("alert_show_serverinfo", true);

                if (showAlertServerInfo)
                    alertServerInfo = String.Format("\nServer: {0}\nPort: {1}\nChannel: {2}\n\n",
                        config.GetString("server", ""), config.GetString("port", ""), config.GetString("channel", ""));

                string alertPreMessage = config.GetString("alert_msg_pre", "This region is linked to Irc.");
                string alertPostMessage = config.GetString("alert_msg_post", "Everything you say in public chat can be listened.");

                alertMessage = String.Format("{0}\n{1}{2}", alertPreMessage, alertServerInfo, alertPostMessage);

                dialogModule = scene.RequestModuleInterface<IDialogModule>();
            }

            // OpenChannel conditionally establishes a connection to the
            // IRC server. The request will either succeed, or it will
            // throw an exception.

            ChannelState.OpenChannel(this, config);

            // Connect channel to world events

            scene.EventManager.OnChatFromWorld += OnSimChat;
            scene.EventManager.OnChatFromClient += OnSimChat;
            scene.EventManager.OnMakeRootAgent += OnMakeRootAgent;
            scene.EventManager.OnMakeChildAgent += OnMakeChildAgent;

            m_log.InfoFormat("[IRC-Region {0}] Initialization complete", Region);

        }

        // Auto cleanup when abandoned

        ~RegionState()
        {
            if (cs != null)
                cs.RemoveRegion(this);
        }

        // Called by PostInitialize after all regions have been created

        public void Open()
        {
            cs.Open(this);
            enabled = true;
        }

        // Called by IRCBridgeModule.Close immediately prior to unload
        // of the module for this region. This happens when the region
        // is being removed or the server is terminating. The IRC
        // BridgeModule will remove the region from the region list
        // when control returns.

        public void Close()
        {
            enabled = false;
            cs.Close(this);
        }

        // The agent has disconnected, cleanup associated resources

        private void OnClientLoggedOut(IClientAPI client)
        {
            try
            {
                if (clients.Contains(client))
                {
                    if (enabled && (cs.irc.Enabled) && (cs.irc.Connected) && (cs.ClientReporting))
                    {
                        m_log.InfoFormat("[IRC-Region {0}]: {1} has left", Region, client.Name);
                        //Check if this person is excluded from IRC
                        if (!cs.ExcludeList.Contains(client.Name.ToLower()))
                        {
                            cs.irc.PrivMsg(cs.NoticeMessageFormat, cs.irc.Nick, Region, String.Format("{0} has left", client.Name));
                        }
                    }
                    client.OnLogout -= OnClientLoggedOut;
                    client.OnConnectionClosed -= OnClientLoggedOut;
                    clients.Remove(client);
                }
            }
            catch (Exception ex)
            {
                m_log.ErrorFormat("[IRC-Region {0}]: ClientLoggedOut exception: {1}", Region, ex.Message);
                m_log.Debug(ex);
            }
        }

        // This event indicates that the agent has left the building. We should treat that the same
        // as if the agent has logged out (we don't want cross-region noise - or do we?)

        private void OnMakeChildAgent(ScenePresence presence)
        {

            IClientAPI client = presence.ControllingClient;

            try
            {
                if (clients.Contains(client))
                {
                    if (enabled && (cs.irc.Enabled) && (cs.irc.Connected) && (cs.ClientReporting))
                    {
                        string clientName = String.Format("{0} {1}", presence.Firstname, presence.Lastname);
                        m_log.DebugFormat("[IRC-Region {0}] {1} has left", Region, clientName);
                        cs.irc.PrivMsg(cs.NoticeMessageFormat, cs.irc.Nick, Region, String.Format("{0} has left", clientName));
                    }
                    client.OnLogout -= OnClientLoggedOut;
                    client.OnConnectionClosed -= OnClientLoggedOut;
                    clients.Remove(client);
                }
            }
            catch (Exception ex)
            {
                m_log.ErrorFormat("[IRC-Region {0}]: MakeChildAgent exception: {1}", Region, ex.Message);
                m_log.Debug(ex);
            }

        }

        // An agent has entered the region (from another region). Add the client to the locally
        // known clients list

        private void OnMakeRootAgent(ScenePresence presence)
        {
            IClientAPI client = presence.ControllingClient;

            try
            {
                if (!clients.Contains(client))
                {
                    client.OnLogout += OnClientLoggedOut;
                    client.OnConnectionClosed += OnClientLoggedOut;
                    clients.Add(client);
                    if (enabled && (cs.irc.Enabled) && (cs.irc.Connected) && (cs.ClientReporting))
                    {
                        string clientName = String.Format("{0} {1}", presence.Firstname, presence.Lastname);
                        m_log.DebugFormat("[IRC-Region {0}] {1} has arrived", Region, clientName);
                        //Check if this person is excluded from IRC
                        if (!cs.ExcludeList.Contains(clientName.ToLower()))
                        {
                            cs.irc.PrivMsg(cs.NoticeMessageFormat, cs.irc.Nick, Region, String.Format("{0} has arrived", clientName));
                        }
                    }
                }

                if (dialogModule != null && showAlert)
                    dialogModule.SendAlertToUser(client, alertMessage, true);
            }
            catch (Exception ex)
            {
                m_log.ErrorFormat("[IRC-Region {0}]: MakeRootAgent exception: {1}", Region, ex.Message);
                m_log.Debug(ex);
            }
        }

        // This handler detects chat events int he virtual world.
        public void OnSimChat(Object sender, OSChatMessage msg)
        {

            // early return if this comes from the IRC forwarder

            if (cs.irc.Equals(sender)) return;

            // early return if nothing to forward

            if (msg.Message.Length == 0) return;

            // check for commands coming from avatars or in-world
            // object (if commands are enabled)

            if (cs.CommandsEnabled && msg.Channel == cs.CommandChannel)
            {

                m_log.DebugFormat("[IRC-Region {0}] command on channel {1}: {2}", Region, msg.Channel, msg.Message);

                string[] messages = msg.Message.Split(' ');
                string command = messages[0].ToLower();

                try
                {
                    switch (command)
                    {

                        // These commands potentially require a change in the
                        // underlying ChannelState.

                        case "server":
                            cs.Close(this);
                            cs = cs.UpdateServer(this, messages[1]);
                            cs.Open(this);
                            break;
                        case "port":
                            cs.Close(this);
                            cs = cs.UpdatePort(this, messages[1]);
                            cs.Open(this);
                            break;
                        case "channel":
                            cs.Close(this);
                            cs = cs.UpdateChannel(this, messages[1]);
                            cs.Open(this);
                            break;
                        case "nick":
                            cs.Close(this);
                            cs = cs.UpdateNickname(this, messages[1]);
                            cs.Open(this);
                            break;

                        // These may also (but are less likely) to require a
                        // change in ChannelState.

                        case "client-reporting":
                            cs = cs.UpdateClientReporting(this, messages[1]);
                            break;
                        case "in-channel":
                            cs = cs.UpdateRelayIn(this, messages[1]);
                            break;
                        case "out-channel":
                            cs = cs.UpdateRelayOut(this, messages[1]);
                            break;

                        // These are all taken to be temporary changes in state
                        // so the underlying connector remains intact. But note
                        // that with regions sharing a connector, there could
                        // be interference.

                        case "close":
                            enabled = false;
                            cs.Close(this);
                            break;

                        case "connect":
                            enabled = true;
                            cs.Open(this);
                            break;

                        case "reconnect":
                            enabled = true;
                            cs.Close(this);
                            cs.Open(this);
                            break;

                        // This one is harmless as far as we can judge from here.
                        // If it is not, then the complaints will eventually make
                        // that evident.

                        default:
                            m_log.DebugFormat("[IRC-Region {0}] Forwarding unrecognized command to IRC : {1}",
                                            Region, msg.Message);
                            cs.irc.Send(msg.Message);
                            break;
                    }
                }
                catch (Exception ex)
                {
                    m_log.WarnFormat("[IRC-Region {0}] error processing in-world command channel input: {1}",
                                    Region, ex.Message);
                    m_log.Debug(ex);
                }

                return;

            }

            // The command channel remains enabled, even if we have otherwise disabled the IRC
            // interface.

            if (!enabled)
                return;

            // drop messages unless they are on a valid in-world
            // channel as configured in the ChannelState

            if (!cs.ValidInWorldChannels.Contains(msg.Channel))
            {
                m_log.DebugFormat("[IRC-Region {0}] dropping message {1} on channel {2}", Region, msg, msg.Channel);
                return;
            }

            ScenePresence avatar = null;
            string fromName = msg.From;

            if (msg.Sender != null)
            {
                avatar = scene.GetScenePresence(msg.Sender.AgentId);
                if (avatar != null) fromName = avatar.Name;
            }

            if (!cs.irc.Connected)
            {
                m_log.WarnFormat("[IRC-Region {0}] IRCConnector not connected: dropping message from {1}", Region, fromName);
                return;
            }

            m_log.DebugFormat("[IRC-Region {0}] heard on channel {1} : {2}", Region, msg.Channel, msg.Message);

            if (null != avatar && cs.RelayChat && (msg.Channel == 0 || msg.Channel == DEBUG_CHANNEL))
            {
                string txt = msg.Message;
                if (txt.StartsWith("/me "))
                    txt = String.Format("{0} {1}", fromName, msg.Message.Substring(4));

                cs.irc.PrivMsg(cs.PrivateMessageFormat, fromName, Region, txt);
                return;
            }

            if (null == avatar && cs.RelayPrivateChannels && null != cs.AccessPassword &&
                msg.Channel == cs.RelayChannelOut)
            {
                Match m = cs.AccessPasswordRegex.Match(msg.Message);
                if (null != m)
                {
                    m_log.DebugFormat("[IRC] relaying message from {0}: {1}", m.Groups["avatar"].ToString(),
                                      m.Groups["message"].ToString());
                    cs.irc.PrivMsg(cs.PrivateMessageFormat, m.Groups["avatar"].ToString(),
                                   scene.RegionInfo.RegionName, m.Groups["message"].ToString());
                }
            }
        }

        // This method gives the region an opportunity to interfere with 
        // message delivery. For now we just enforce the enable/disable
        // flag.

        internal void OSChat(Object irc, OSChatMessage msg)
        {
            if (enabled)
            {
                // m_log.DebugFormat("[IRC-OSCHAT] Region {0} being sent message", region.Region);
                msg.Scene = scene;
                scene.EventManager.TriggerOnChatBroadcast(irc, msg);
            }
        }

        // This supports any local message traffic that might be needed in 
        // support of command processing. At present there is none.

        internal void LocalChat(string msg)
        {
            if (enabled)
            {
                OSChatMessage osm = new OSChatMessage();
                osm.From = "IRC Agent";
                osm.Message = msg;
                osm.Type = ChatTypeEnum.Region;
                osm.Position = CenterOfRegion;
                osm.Sender = null;
                osm.SenderUUID = OpenMetaverse.UUID.Zero; // Hmph! Still?
                osm.Channel = 0;
                OSChat(this, osm);
            }
        }

    }

}