xmpp_component.cpp 25.9 KB
Newer Older
1
#include <utils/scopeguard.hpp>
louiz’'s avatar
louiz’ committed
2
#include <logger/logger.hpp>
3

4
#include <xmpp/xmpp_component.hpp>
5
#include <xmpp/jid.hpp>
6

7
8
#include <utils/sha1.hpp>

louiz’'s avatar
louiz’ committed
9
#include <stdexcept>
10
11
#include <iostream>

12
#include <stdio.h>
13

louiz’'s avatar
louiz’ committed
14
15
16
17
18
19
#include <config.h>

#ifdef SYSTEMDDAEMON_FOUND
# include <systemd/sd-daemon.h>
#endif

20
21
22
23
#define STREAM_NS        "http://etherx.jabber.org/streams"
#define COMPONENT_NS     "jabber:component:accept"
#define MUC_NS           "http://jabber.org/protocol/muc"
#define MUC_USER_NS      MUC_NS"#user"
24
#define MUC_ADMIN_NS     MUC_NS"#admin"
25
26
27
#define DISCO_NS         "http://jabber.org/protocol/disco"
#define DISCO_ITEMS_NS   DISCO_NS"#items"
#define DISCO_INFO_NS    DISCO_NS"#info"
28
#define XHTMLIM_NS       "http://jabber.org/protocol/xhtml-im"
29
#define STANZA_NS        "urn:ietf:params:xml:ns:xmpp-stanzas"
louiz’'s avatar
louiz’ committed
30
#define STREAMS_NS       "urn:ietf:params:xml:ns:xmpp-streams"
31
32
33
#define VERSION_NS       "jabber:iq:version"

using namespace std::string_literals;
34

louiz’'s avatar
louiz’ committed
35
36
unsigned long XmppComponent::current_id = 0;

37
XmppComponent::XmppComponent(const std::string& hostname, const std::string& secret):
38
39
  ever_auth(false),
  last_auth(false),
40
41
  served_hostname(hostname),
  secret(secret),
louiz’'s avatar
louiz’ committed
42
43
  authenticated(false),
  doc_open(false)
44
45
46
47
48
49
50
{
  this->parser.add_stream_open_callback(std::bind(&XmppComponent::on_remote_stream_open, this,
                                                  std::placeholders::_1));
  this->parser.add_stanza_callback(std::bind(&XmppComponent::on_stanza, this,
                                                  std::placeholders::_1));
  this->parser.add_stream_close_callback(std::bind(&XmppComponent::on_remote_stream_close, this,
                                                  std::placeholders::_1));
51
  this->stanza_handlers.emplace(COMPONENT_NS":handshake",
52
                                std::bind(&XmppComponent::handle_handshake, this,std::placeholders::_1));
53
  this->stanza_handlers.emplace(COMPONENT_NS":presence",
54
                                std::bind(&XmppComponent::handle_presence, this,std::placeholders::_1));
55
  this->stanza_handlers.emplace(COMPONENT_NS":message",
louiz’'s avatar
louiz’ committed
56
                                std::bind(&XmppComponent::handle_message, this,std::placeholders::_1));
57
58
  this->stanza_handlers.emplace(COMPONENT_NS":iq",
                                std::bind(&XmppComponent::handle_iq, this,std::placeholders::_1));
louiz’'s avatar
louiz’ committed
59
60
  this->stanza_handlers.emplace(STREAM_NS":error",
                                std::bind(&XmppComponent::handle_error, this,std::placeholders::_1));
61
62
63
64
65
66
}

XmppComponent::~XmppComponent()
{
}

67
void XmppComponent::start()
68
{
69
  this->connect("127.0.0.1", "5347");
70
71
}

louiz’'s avatar
louiz’ committed
72
73
74
75
76
bool XmppComponent::is_document_open() const
{
  return this->doc_open;
}

77
78
void XmppComponent::send_stanza(const Stanza& stanza)
{
louiz’'s avatar
louiz’ committed
79
80
81
  std::string str = stanza.to_string();
  log_debug("XMPP SENDING: " << str);
  this->send_data(std::move(str));
82
83
}

84
85
86
void XmppComponent::on_connection_failed(const std::string& reason)
{
  log_error("Failed to connect to the XMPP server: " << reason);
louiz’'s avatar
louiz’ committed
87
88
89
#ifdef SYSTEMDDAEMON_FOUND
  sd_notifyf(0, "STATUS=Failed to connect to the XMPP server: %s", reason.data());
#endif
90
91
}

92
93
void XmppComponent::on_connected()
{
louiz’'s avatar
louiz’ committed
94
  log_info("connected to XMPP server");
95
  XmlNode node("stream:stream", nullptr);
96
97
  node["xmlns"] = COMPONENT_NS;
  node["xmlns:stream"] = STREAM_NS;
98
  node["to"] = this->served_hostname;
99
  this->send_stanza(node);
louiz’'s avatar
louiz’ committed
100
  this->doc_open = true;
101
102
103
  // We may have some pending data to send: this happens when we try to send
  // some data before we are actually connected.  We send that data right now, if any
  this->send_pending_data();
104
105
106
107
}

void XmppComponent::on_connection_close()
{
louiz’'s avatar
louiz’ committed
108
  log_info("XMPP server closed connection");
109
110
}

111
void XmppComponent::parse_in_buffer(const size_t size)
112
{
113
114
115
116
117
118
119
120
121
122
123
124
  if (!this->in_buf.empty())
    { // This may happen if the parser could not allocate enough space for
      // us. We try to feed it the data that was read into our in_buf
      // instead. If this fails again we are in trouble.
      this->parser.feed(this->in_buf.data(), this->in_buf.size(), false);
      this->in_buf.clear();
    }
  else
    { // Just tell the parser to parse the data that was placed into the
      // buffer it provided to us with GetBuffer
      this->parser.parse(size, false);
    }
125
126
}

louiz’'s avatar
louiz’ committed
127
128
129
130
131
132
133
134
void XmppComponent::shutdown()
{
  for (auto it = this->bridges.begin(); it != this->bridges.end(); ++it)
  {
    it->second->shutdown();
  }
}

louiz’'s avatar
louiz’ committed
135
136
void XmppComponent::clean()
{
louiz’'s avatar
louiz’ committed
137
138
  auto it = this->bridges.begin();
  while (it != this->bridges.end())
louiz’'s avatar
louiz’ committed
139
140
  {
    it->second->clean();
141
    if (it->second->active_clients() == 0)
louiz’'s avatar
louiz’ committed
142
143
144
      it = this->bridges.erase(it);
    else
      ++it;
louiz’'s avatar
louiz’ committed
145
146
147
  }
}

148
149
void XmppComponent::on_remote_stream_open(const XmlNode& node)
{
louiz’'s avatar
louiz’ committed
150
  log_debug("XMPP DOCUMENT OPEN: " << node.to_string());
151
152
  this->stream_id = node.get_tag("id");
  if (this->stream_id.empty())
153
    {
louiz’'s avatar
louiz’ committed
154
      log_error("Error: no attribute 'id' found");
155
156
157
158
159
      this->send_stream_error("bad-format", "missing 'id' attribute");
      this->close_document();
      return ;
    }

160
  this->last_auth = false;
161
  // Try to authenticate
162
163
164
165
166
167
168
169
170
171
172
  char digest[HASH_LENGTH * 2 + 1];
  sha1nfo sha1;
  sha1_init(&sha1);
  sha1_write(&sha1, this->stream_id.data(), this->stream_id.size());
  sha1_write(&sha1, this->secret.data(),  this->secret.size());
  const uint8_t* result = sha1_result(&sha1);
  for (int i=0; i < HASH_LENGTH; i++)
    sprintf(digest + (i*2), "%02x", result[i]);
  digest[HASH_LENGTH * 2] = '\0';

  Stanza handshake("handshake");
173
174
175
176
177
178
179
  handshake.set_inner(digest);
  handshake.close();
  this->send_stanza(handshake);
}

void XmppComponent::on_remote_stream_close(const XmlNode& node)
{
louiz’'s avatar
louiz’ committed
180
  log_debug("XMPP DOCUMENT CLOSE " << node.to_string());
181
  this->doc_open = false;
182
183
}

184
185
186
187
188
void XmppComponent::reset()
{
  this->parser.reset();
}

189
190
void XmppComponent::on_stanza(const Stanza& stanza)
{
louiz’'s avatar
louiz’ committed
191
  log_debug("XMPP RECEIVING: " << stanza.to_string());
192
  std::function<void(const Stanza&)> handler;
193
194
  try
    {
195
      handler = this->stanza_handlers.at(stanza.get_name());
196
197
198
    }
  catch (const std::out_of_range& exception)
    {
louiz’'s avatar
louiz’ committed
199
      log_warning("No handler for stanza of type " << stanza.get_name());
200
201
      return;
    }
202
  handler(stanza);
203
204
205
206
207
208
}

void XmppComponent::send_stream_error(const std::string& name, const std::string& explanation)
{
  XmlNode node("stream:error", nullptr);
  XmlNode error(name, nullptr);
209
  error["xmlns"] = STREAM_NS;
210
211
212
213
214
215
216
217
  if (!explanation.empty())
    error.set_inner(explanation);
  error.close();
  node.add_child(std::move(error));
  node.close();
  this->send_stanza(node);
}

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
void XmppComponent::send_stanza_error(const std::string& kind, const std::string& to, const std::string& from,
                       const std::string& id, const std::string& error_type,
                       const std::string& defined_condition, const std::string& text)
{
  Stanza node(kind);
  if (!to.empty())
    node["to"] = to;
  if (!from.empty())
    node["from"] = from;
  if (!id.empty())
    node["id"] = id;
  node["type"] = "error";
  XmlNode error("error");
  error["type"] = error_type;
  XmlNode inner_error(defined_condition);
  inner_error["xmlns"] = STANZA_NS;
  inner_error.close();
  error.add_child(std::move(inner_error));
  if (!text.empty())
    {
      XmlNode text_node("text");
      text_node["xmlns"] = STANZA_NS;
      text_node.set_inner(text);
      text_node.close();
      error.add_child(std::move(text_node));
    }
  error.close();
  node.add_child(std::move(error));
  node.close();
  this->send_stanza(node);
}

250
251
void XmppComponent::close_document()
{
louiz’'s avatar
louiz’ committed
252
  log_debug("XMPP SENDING: </stream:stream>");
253
  this->send_data("</stream:stream>");
louiz’'s avatar
louiz’ committed
254
  this->doc_open = false;
255
256
257
258
}

void XmppComponent::handle_handshake(const Stanza& stanza)
{
259
  (void)stanza;
260
  this->authenticated = true;
261
262
  this->ever_auth = true;
  this->last_auth = true;
louiz’'s avatar
louiz’ committed
263
  log_info("Authenticated with the XMPP server");
louiz’'s avatar
louiz’ committed
264
265
266
#ifdef SYSTEMDDAEMON_FOUND
  sd_notify(0, "READY=1");
#endif
267
}
268
269
270

void XmppComponent::handle_presence(const Stanza& stanza)
{
271
272
273
274
275
276
  std::string from = stanza.get_tag("from");
  std::string id = stanza.get_tag("id");
  std::string to_str = stanza.get_tag("to");
  std::string type = stanza.get_tag("type");

  // Check for mandatory tags
277
  if (from.empty())
278
279
280
281
282
283
    {
      log_warning("Received an invalid presence stanza: tag 'from' is missing.");
      return;
    }
  if (to_str.empty())
    {
284
      this->send_stanza_error("presence", from, this->served_hostname, id,
285
286
287
288
289
290
                              "modify", "bad-request", "Missing 'to' tag");
      return;
    }

  Bridge* bridge = this->get_user_bridge(from);
  Jid to(to_str);
291
  Iid iid(to.local);
292
293
294
295
296
297
298
299
300

  // An error stanza is sent whenever we exit this function without
  // disabling this scopeguard.  If error_type and error_name are not
  // changed, the error signaled is internal-server-error. Change their
  // value to signal an other kind of error. For example
  // feature-not-implemented, etc.  Any non-error process should reach the
  // stanza_error.disable() call at the end of the function.
  std::string error_type("cancel");
  std::string error_name("internal-server-error");
301
  utils::ScopeGuard stanza_error([&](){
302
      this->send_stanza_error("presence", from, to_str, id,
303
304
                              error_type, error_name, "");
        });
louiz’'s avatar
louiz’ committed
305

louiz’'s avatar
louiz’ committed
306
307
308
  if (!iid.server.empty())
    { // presence toward a MUC that corresponds to an irc channel, or a
      // dummy channel if iid.chan is empty
louiz’'s avatar
louiz’ committed
309
      if (type.empty())
louiz’'s avatar
louiz’ committed
310
311
312
313
        {
          const std::string own_nick = bridge->get_own_nick(iid);
          if (!own_nick.empty() && own_nick != to.resource)
            bridge->send_irc_nick_change(iid, to.resource);
314
          bridge->join_irc_channel(iid, to.resource);
louiz’'s avatar
louiz’ committed
315
        }
louiz’'s avatar
louiz’ committed
316
317
      else if (type == "unavailable")
        {
318
          XmlNode* status = stanza.get_child(COMPONENT_NS":status");
louiz’'s avatar
louiz’ committed
319
320
321
          bridge->leave_irc_channel(std::move(iid), status ? std::move(status->get_inner()) : "");
        }
    }
322
323
324
325
  else
    {
      // An user wants to join an invalid IRC channel, return a presence error to him
      if (type.empty())
326
        this->send_invalid_room_error(to.local, to.resource, from);
327
    }
328
  stanza_error.disable();
329
330
}

louiz’'s avatar
louiz’ committed
331
332
void XmppComponent::handle_message(const Stanza& stanza)
{
333
334
335
336
337
  std::string from = stanza.get_tag("from");
  std::string id = stanza.get_tag("id");
  std::string to_str = stanza.get_tag("to");
  std::string type = stanza.get_tag("type");

338
339
  if (from.empty())
    return;
340
  if (type.empty())
341
    type = "normal";
342
343
344
  Bridge* bridge = this->get_user_bridge(from);
  Jid to(to_str);
  Iid iid(to.local);
345
346
347

  std::string error_type("cancel");
  std::string error_name("internal-server-error");
348
  utils::ScopeGuard stanza_error([&](){
349
      this->send_stanza_error("message", from, to_str, id,
350
351
                              error_type, error_name, "");
        });
352
  XmlNode* body = stanza.get_child(COMPONENT_NS":body");
353
  if (type == "groupchat")
louiz’'s avatar
louiz’ committed
354
355
356
357
    {
      if (to.resource.empty())
        if (body && !body->get_inner().empty())
          bridge->send_channel_message(iid, body->get_inner());
358
359
360
      XmlNode* subject = stanza.get_child(COMPONENT_NS":subject");
      if (subject)
        bridge->set_channel_topic(iid, subject->get_inner());
louiz’'s avatar
louiz’ committed
361
    }
louiz’'s avatar
louiz’ committed
362
363
364
365
366
  else
    {
      if (body && !body->get_inner().empty())
        bridge->send_private_message(iid, body->get_inner());
    }
367
  stanza_error.disable();
louiz’'s avatar
louiz’ committed
368
369
}

370
371
372
373
374
375
376
377
378
379
380
381
// We MUST return an iq, whatever happens, except if the type is
// "result".
// To do this, we use a scopeguard. If an exception is raised somewhere, an
// iq of type error "internal-server-error" is sent. If we handle the
// request properly (by calling a function that registers an iq to be sent
// later, or that directly sends an iq), we disable the ScopeGuard. If we
// reach the end of the function without having disabled the scopeguard, we
// send a "feature-not-implemented" iq as a result.  If an other kind of
// error is found (for example the feature is implemented in biboumi, but
// the request is missing some attribute) we can just change the values of
// error_type and error_name and return from the function (without disabling
// the scopeguard); an iq error will be sent
382
383
void XmppComponent::handle_iq(const Stanza& stanza)
{
384
385
386
387
388
  std::string id = stanza.get_tag("id");
  std::string from = stanza.get_tag("from");
  std::string to_str = stanza.get_tag("to");
  std::string type = stanza.get_tag("type");

389
390
  if (from.empty())
    return;
391
392
  if (id.empty() || to_str.empty() || type.empty())
    {
393
      this->send_stanza_error("iq", from, this->served_hostname, id,
394
                              "modify", "bad-request", "");
395
396
397
398
      return;
    }

  Bridge* bridge = this->get_user_bridge(from);
399
  Jid to(to_str);
400

401
402
  // These two values will be used in the error iq sent if we don't disable
  // the scopeguard.
403
404
  std::string error_type("cancel");
  std::string error_name("internal-server-error");
405
  utils::ScopeGuard stanza_error([&](){
406
      this->send_stanza_error("iq", from, to_str, id,
407
408
                              error_type, error_name, "");
        });
409
410
411
412
413
  if (type == "set")
    {
      XmlNode* query;
      if ((query = stanza.get_child(MUC_ADMIN_NS":query")))
        {
414
415
          const XmlNode* child = query->get_child(MUC_ADMIN_NS":item");
          if (child)
416
            {
417
418
              std::string nick = child->get_tag("nick");
              std::string role = child->get_tag("role");
419
              if (!nick.empty() && role == "none")
420
                {               // This is a kick
421
422
423
424
425
426
                  std::string reason;
                  XmlNode* reason_el = child->get_child(MUC_ADMIN_NS":reason");
                  if (reason_el)
                    reason = reason_el->get_inner();
                  Iid iid(to.local);
                  bridge->send_irc_kick(iid, nick, reason);
427
                  stanza_error.disable();
428
                }
429
430
431
            }
        }
    }
432
433
434
435
436
437
438
439
  else if (type == "get")
    {
      XmlNode* query;
      if ((query = stanza.get_child(DISCO_INFO_NS":query")))
        { // Disco info
          if (to_str == this->served_hostname)
            { // On the gateway itself
              this->send_self_disco_info(id, from);
440
              stanza_error.disable();
441
442
443
            }
        }
    }
444
  else if (type == "result")
445
    {
446
      stanza_error.disable();
louiz’'s avatar
louiz’ committed
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
      XmlNode* query;
      if ((query = stanza.get_child(VERSION_NS":query")))
        {
          XmlNode* name_node = query->get_child(VERSION_NS":name");
          XmlNode* version_node = query->get_child(VERSION_NS":version");
          XmlNode* os_node = query->get_child(VERSION_NS":os");
          std::string name;
          std::string version;
          std::string os;
          if (name_node)
            name = name_node->get_inner() + " (through the biboumi gateway)";
          if (version_node)
            version = version_node->get_inner();
          if (os_node)
            os = os_node->get_inner();
          const Iid iid(to.local);
          bridge->send_xmpp_version_to_irc(iid, name, version, os);
        }
465
    }
466
467
  error_type = "cancel";
  error_name = "feature-not-implemented";
468
469
}

louiz’'s avatar
louiz’ committed
470
471
472
473
474
475
476
void XmppComponent::handle_error(const Stanza& stanza)
{
  XmlNode* text = stanza.get_child(STREAMS_NS":text");
  std::string error_message("Unspecified error");
  if (text)
    error_message = text->get_inner();
  log_error("Stream error received from the XMPP server: " << error_message);
louiz’'s avatar
louiz’ committed
477
478
479
480
481
#ifdef SYSTEMDDAEMON_FOUND
  if (!this->ever_auth)
    sd_notifyf(0, "STATUS=Failed to authenticate to the XMPP server: %s", error_message.data());
#endif

louiz’'s avatar
louiz’ committed
482
483
}

484
485
486
487
488
489
490
491
492
493
494
495
496
Bridge* XmppComponent::get_user_bridge(const std::string& user_jid)
{
  try
    {
      return this->bridges.at(user_jid).get();
    }
  catch (const std::out_of_range& exception)
    {
      this->bridges.emplace(user_jid, std::make_unique<Bridge>(user_jid, this, this->poller));
      return this->bridges.at(user_jid).get();
    }
}

497
498
499
500
501
void* XmppComponent::get_receive_buffer(const size_t size) const
{
  return this->parser.get_buffer(size);
}

502
void XmppComponent::send_message(const std::string& from, Xmpp::body&& body, const std::string& to, const std::string& type)
503
504
505
506
{
  XmlNode node("message");
  node["to"] = to;
  node["from"] = from + "@" + this->served_hostname;
507
508
  if (!type.empty())
    node["type"] = type;
509
  XmlNode body_node("body");
510
  body_node.set_inner(std::get<0>(body));
511
512
  body_node.close();
  node.add_child(std::move(body_node));
513
514
515
516
517
518
519
520
521
  if (std::get<1>(body))
    {
      XmlNode html("html");
      html["xmlns"] = XHTMLIM_NS;
      // Pass the ownership of the pointer to this xmlnode
      html.add_child(std::get<1>(body).release());
      html.close();
      node.add_child(std::move(html));
    }
522
523
524
525
  node.close();
  this->send_stanza(node);
}

526
527
528
void XmppComponent::send_user_join(const std::string& from,
                                   const std::string& nick,
                                   const std::string& realjid,
529
530
531
532
                                   const std::string& affiliation,
                                   const std::string& role,
                                   const std::string& to,
                                   const bool self)
533
534
535
536
537
538
{
  XmlNode node("presence");
  node["to"] = to;
  node["from"] = from + "@" + this->served_hostname + "/" + nick;

  XmlNode x("x");
539
  x["xmlns"] = MUC_USER_NS;
540
541

  XmlNode item("item");
542
543
544
545
  if (!affiliation.empty())
    item["affiliation"] = affiliation;
  if (!role.empty())
    item["role"] = role;
546
547
548
549
550
551
  if (!realjid.empty())
    {
      const std::string preped_jid = jidprep(realjid);
      if (!preped_jid.empty())
        item["jid"] = preped_jid;
    }
552
  item.close();
553
  x.add_child(std::move(item));
554

555
556
557
558
559
560
561
  if (self)
    {
      XmlNode status("status");
      status["code"] = "110";
      status.close();
      x.add_child(std::move(status));
    }
562
563
564
565
566
567
  x.close();
  node.add_child(std::move(x));
  node.close();
  this->send_stanza(node);
}

568
569
570
571
572
573
574
575
576
577
578
579
580
581
void XmppComponent::send_invalid_room_error(const std::string& muc_name,
                                            const std::string& nick,
                                            const std::string& to)
{
  Stanza presence("presence");
  presence["from"] = muc_name + "@" + this->served_hostname + "/" + nick;
  presence["to"] = to;
  presence["type"] = "error";
  XmlNode x("x");
  x["xmlns"] = MUC_NS;
  x.close();
  presence.add_child(std::move(x));
  XmlNode error("error");
  error["by"] = muc_name + "@" + this->served_hostname;
louiz’'s avatar
Idem  
louiz’ committed
582
  error["type"] = "cancel";
louiz’'s avatar
louiz’ committed
583
584
585
586
  XmlNode item_not_found("item-not-found");
  item_not_found["xmlns"] = STANZA_NS;
  item_not_found.close();
  error.add_child(std::move(item_not_found));
587
588
589
590
591
592
593
594
595
596
597
598
599
600
  XmlNode text("text");
  text["xmlns"] = STANZA_NS;
  text["xml:lang"] = "en";
  text.set_inner(muc_name +
                 " is not a valid IRC channel name. A correct room jid is of the form: #<chan>%<server>@" +
                 this->served_hostname);
  text.close();
  error.add_child(std::move(text));
  error.close();
  presence.add_child(std::move(error));
  presence.close();
  this->send_stanza(presence);
}

601
void XmppComponent::send_topic(const std::string& from, Xmpp::body&& topic, const std::string& to)
602
603
604
605
606
607
{
  XmlNode message("message");
  message["to"] = to;
  message["from"] = from + "@" + this->served_hostname;
  message["type"] = "groupchat";
  XmlNode subject("subject");
608
  subject.set_inner(std::get<0>(topic));
609
610
611
612
613
  subject.close();
  message.add_child(std::move(subject));
  message.close();
  this->send_stanza(message);
}
louiz’'s avatar
louiz’ committed
614

615
void XmppComponent::send_muc_message(const std::string& muc_name, const std::string& nick, Xmpp::body&& xmpp_body, const std::string& jid_to)
louiz’'s avatar
louiz’ committed
616
617
618
{
  Stanza message("message");
  message["to"] = jid_to;
louiz’'s avatar
louiz’ committed
619
620
621
622
  if (!nick.empty())
    message["from"] = muc_name + "@" + this->served_hostname + "/" + nick;
  else // Message from the room itself
    message["from"] = muc_name + "@" + this->served_hostname;
louiz’'s avatar
louiz’ committed
623
624
  message["type"] = "groupchat";
  XmlNode body("body");
625
  body.set_inner(std::get<0>(xmpp_body));
louiz’'s avatar
louiz’ committed
626
627
  body.close();
  message.add_child(std::move(body));
628
629
630
631
632
633
634
635
636
  if (std::get<1>(xmpp_body))
    {
      XmlNode html("html");
      html["xmlns"] = XHTMLIM_NS;
      // Pass the ownership of the pointer to this xmlnode
      html.add_child(std::get<1>(xmpp_body).release());
      html.close();
      message.add_child(std::move(html));
    }
louiz’'s avatar
louiz’ committed
637
638
639
  message.close();
  this->send_stanza(message);
}
louiz’'s avatar
louiz’ committed
640

641
void XmppComponent::send_muc_leave(std::string&& muc_name, std::string&& nick, Xmpp::body&& message, const std::string& jid_to, const bool self)
louiz’'s avatar
louiz’ committed
642
643
644
645
646
{
  Stanza presence("presence");
  presence["to"] = jid_to;
  presence["from"] = muc_name + "@" + this->served_hostname + "/" + nick;
  presence["type"] = "unavailable";
647
  const std::string message_str = std::get<0>(message);
louiz’'s avatar
louiz’ committed
648
649
650
651
652
653
654
655
656
657
658
659
  XmlNode x("x");
  x["xmlns"] = MUC_USER_NS;
  if (self)
    {
      XmlNode status("status");
      status["code"] = "110";
      status.close();
      x.add_child(std::move(status));
    }
  x.close();
  presence.add_child(std::move(x));
  if (!message_str.empty())
louiz’'s avatar
louiz’ committed
660
661
    {
      XmlNode status("status");
louiz’'s avatar
louiz’ committed
662
      status.set_inner(message_str);
louiz’'s avatar
louiz’ committed
663
664
665
666
667
668
      status.close();
      presence.add_child(std::move(status));
    }
  presence.close();
  this->send_stanza(presence);
}
louiz’'s avatar
louiz’ committed
669

670
671
672
673
674
675
676
void XmppComponent::send_nick_change(const std::string& muc_name,
                                     const std::string& old_nick,
                                     const std::string& new_nick,
                                     const std::string& affiliation,
                                     const std::string& role,
                                     const std::string& jid_to,
                                     const bool self)
louiz’'s avatar
louiz’ committed
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
{
  Stanza presence("presence");
  presence["to"] = jid_to;
  presence["from"] = muc_name + "@" + this->served_hostname + "/" + old_nick;
  presence["type"] = "unavailable";
  XmlNode x("x");
  x["xmlns"] = MUC_USER_NS;
  XmlNode item("item");
  item["nick"] = new_nick;
  item.close();
  x.add_child(std::move(item));
  XmlNode status("status");
  status["code"] = "303";
  status.close();
  x.add_child(std::move(status));
  if (self)
    {
      XmlNode status2("status");
      status2["code"] = "110";
      status2.close();
      x.add_child(std::move(status2));
    }
  x.close();
  presence.add_child(std::move(x));
  presence.close();
  this->send_stanza(presence);

704
  this->send_user_join(muc_name, new_nick, "", affiliation, role, jid_to, self);
louiz’'s avatar
louiz’ committed
705
}
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741

void XmppComponent::kick_user(const std::string& muc_name,
                                  const std::string& target,
                                  const std::string& txt,
                                  const std::string& author,
                                  const std::string& jid_to)
{
  Stanza presence("presence");
  presence["from"] = muc_name + "@" + this->served_hostname + "/" + target;
  presence["to"] = jid_to;
  presence["type"] = "unavailable";
  XmlNode x("x");
  x["xmlns"] = MUC_USER_NS;
  XmlNode item("item");
  item["affiliation"] = "none";
  item["role"] = "none";
  XmlNode actor("actor");
  actor["nick"] = author;
  actor["jid"] = author; // backward compatibility with old clients
  actor.close();
  item.add_child(std::move(actor));
  XmlNode reason("reason");
  reason.set_inner(txt);
  reason.close();
  item.add_child(std::move(reason));
  item.close();
  x.add_child(std::move(item));
  XmlNode status("status");
  status["code"] = "307";
  status.close();
  x.add_child(std::move(status));
  x.close();
  presence.add_child(std::move(x));
  presence.close();
  this->send_stanza(presence);
}
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766

void XmppComponent::send_nickname_conflict_error(const std::string& muc_name,
                                                 const std::string& nickname,
                                                 const std::string& jid_to)
{
  Stanza presence("presence");
  presence["from"] = muc_name + "@" + this->served_hostname + "/" + nickname;
  presence["to"] = jid_to;
  XmlNode x("x");
  x["xmlns"] = MUC_NS;
  x.close();
  presence.add_child(std::move(x));
  XmlNode error("error");
  error["by"] = muc_name + "@" + this->served_hostname;
  error["type"] = "cancel";
  error["code"] = "409";
  XmlNode conflict("conflict");
  conflict["xmlns"] = STANZA_NS;
  conflict.close();
  error.add_child(std::move(conflict));
  error.close();
  presence.add_child(std::move(error));
  presence.close();
  this->send_stanza(presence);
}
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788

void XmppComponent::send_affiliation_role_change(const std::string& muc_name,
                                                 const std::string& target,
                                                 const std::string& affiliation,
                                                 const std::string& role,
                                                 const std::string& jid_to)
{
  Stanza presence("presence");
  presence["from"] = muc_name + "@" + this->served_hostname + "/" + target;
  presence["to"] = jid_to;
  XmlNode x("x");
  x["xmlns"] = MUC_USER_NS;
  XmlNode item("item");
  item["affiliation"] = affiliation;
  item["role"] = role;
  item.close();
  x.add_child(std::move(item));
  x.close();
  presence.add_child(std::move(x));
  presence.close();
  this->send_stanza(presence);
}
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817

void XmppComponent::send_self_disco_info(const std::string& id, const std::string& jid_to)
{
  Stanza iq("iq");
  iq["type"] = "result";
  iq["id"] = id;
  iq["to"] = jid_to;
  iq["from"] = this->served_hostname;
  XmlNode query("query");
  query["xmlns"] = DISCO_INFO_NS;
  XmlNode identity("identity");
  identity["category"] = "conference";
  identity["type"] = "irc";
  identity["name"] = "Biboumi XMPP-IRC gateway";
  identity.close();
  query.add_child(std::move(identity));
  for (const std::string& ns: {"http://jabber.org/protocol/disco#info",
                                    "http://jabber.org/protocol/muc"})
    {
      XmlNode feature("feature");
      feature["var"] = ns;
      feature.close();
      query.add_child(std::move(feature));
    }
  query.close();
  iq.add_child(std::move(query));
  iq.close();
  this->send_stanza(iq);
}
louiz’'s avatar
louiz’ committed
818

819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
void XmppComponent::send_iq_version_request(const std::string& from,
                                            const std::string& jid_to)
{
  Stanza iq("iq");
  iq["type"] = "get";
  iq["id"] = "version_"s + XmppComponent::next_id();
  iq["from"] = from + "@" + this->served_hostname;
  iq["to"] = jid_to;
  XmlNode query("query");
  query["xmlns"] = VERSION_NS;
  query.close();
  iq.add_child(std::move(query));
  iq.close();
  this->send_stanza(iq);
}

louiz’'s avatar
louiz’ committed
835
836
837
838
std::string XmppComponent::next_id()
{
  return std::to_string(XmppComponent::current_id++);
}