~singpolyma/biboumi

ref: 5739d418e2b35dfc038fe1a12f8b5c7eeeed6868 biboumi/src/bridge/bridge.cpp -rw-r--r-- 9.4 KiB
5739d418 — Florent Le Coz Better way to leave the dummy room 8 years ago
                                                                                
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
#include <bridge/bridge.hpp>
#include <bridge/colors.hpp>
#include <xmpp/xmpp_component.hpp>
#include <irc/irc_message.hpp>
#include <network/poller.hpp>
#include <utils/encoding.hpp>
#include <logger/logger.hpp>
#include <utils/split.hpp>
#include <stdexcept>
#include <iostream>
#include <tuple>

static const char* action_prefix = "\01ACTION ";
static const size_t action_prefix_len = 8;

Bridge::Bridge(const std::string& user_jid, XmppComponent* xmpp, Poller* poller):
  user_jid(user_jid),
  xmpp(xmpp),
  poller(poller)
{
}

Bridge::~Bridge()
{
}

/**
 * Return the role and affiliation, corresponding to the given irc mode */
static std::tuple<std::string, std::string> get_role_affiliation_from_irc_mode(const char mode)
{
  if (mode == 'a' || mode == 'q')
    return std::make_tuple("moderator", "owner");
  else if (mode == 'o')
    return std::make_tuple("moderator", "admin");
  else if (mode == 'h')
    return std::make_tuple("moderator", "member");
  else if (mode == 'v')
    return std::make_tuple("participant", "member");
  else
    return std::make_tuple("participant", "none");
}

void Bridge::shutdown()
{
  for (auto it = this->irc_clients.begin(); it != this->irc_clients.end(); ++it)
  {
    const std::string exit_message("Gateway shutdown");
    it->second->send_quit_command(exit_message);
    it->second->leave_dummy_channel(exit_message);
  }
}

void Bridge::clean()
{
  auto it = this->irc_clients.begin();
  while (it != this->irc_clients.end())
  {
    IrcClient* client = it->second.get();
    if (!client->is_connected() && !client->is_connecting())
      it = this->irc_clients.erase(it);
    else
      ++it;
  }
}

Xmpp::body Bridge::make_xmpp_body(const std::string& str)
{
  std::string res;
  if (utils::is_valid_utf8(str.c_str()))
    res = str;
  else
    res = utils::convert_to_utf8(str, "ISO-8859-1");
  return irc_format_to_xhtmlim(res);
}

IrcClient* Bridge::get_irc_client(const std::string& hostname, const std::string& username)
{
  try
    {
      return this->irc_clients.at(hostname).get();
    }
  catch (const std::out_of_range& exception)
    {
      this->irc_clients.emplace(hostname, std::make_shared<IrcClient>(hostname, username, this));
      std::shared_ptr<IrcClient> irc = this->irc_clients.at(hostname);
      this->poller->add_socket_handler(irc);
      return irc.get();
    }
}

IrcClient* Bridge::get_irc_client(const std::string& hostname)
{
  try
    {
      return this->irc_clients.at(hostname).get();
    }
  catch (const std::out_of_range& exception)
    {
      return nullptr;
    }
}

bool Bridge::join_irc_channel(const Iid& iid, const std::string& username)
{
  IrcClient* irc = this->get_irc_client(iid.server, username);
  if (iid.chan.empty())
    { // Join the dummy channel
      if (irc->is_welcomed())
        {
          if (irc->get_dummy_channel().joined)
            return false;
          // Immediately simulate a message coming from the IRC server saying that we
          // joined the channel
          const IrcMessage join_message(irc->get_nick(), "JOIN", {""});
          irc->on_channel_join(join_message);
          const IrcMessage end_join_message(std::string(iid.server), "366",
                                            {irc->get_nick(),
                                                "", "End of NAMES list"});
          irc->on_channel_completely_joined(end_join_message);
        }
      else
          irc->get_dummy_channel().joining = true;
      return true;
    }
  if (irc->is_channel_joined(iid.chan) == false)
    {
      irc->send_join_command(iid.chan);
      return true;
    }
  return false;
}

void Bridge::send_channel_message(const Iid& iid, const std::string& body)
{
  std::vector<std::string> lines = utils::split(body, '\n', true);
  if (lines.empty())
    return ;
  const std::string first_line = lines[0];
  if (iid.chan.empty() || iid.server.empty())
    {
      log_warning("Cannot send message to channel: [" << iid.chan << "] on server [" << iid.server << "]");
      return;
    }
  IrcClient* irc = this->get_irc_client(iid.server);
  if (!irc)
    {
      log_warning("Cannot send message: no client exist for server " << iid.server);
      return;
    }
  if (first_line.substr(0, 6) == "/mode ")
    {
      std::vector<std::string> args = utils::split(first_line.substr(6), ' ', false);
      irc->send_mode_command(iid.chan, args);
      return;
    }
  if (first_line.substr(0, 4) == "/me ")
    irc->send_channel_message(iid.chan, action_prefix + first_line.substr(4) + "\01");
  else
    irc->send_channel_message(iid.chan, first_line);
  // Send each of the other lines of the message as a separate IRC message
  for (std::vector<std::string>::const_iterator it = lines.begin() + 1; it != lines.end(); ++it)
    irc->send_channel_message(iid.chan, *it);
  // We do not need to convert body to utf-8: it comes from our XMPP server,
  // so it's ok to send it back
  this->xmpp->send_muc_message(iid.chan + "%" + iid.server, irc->get_own_nick(),
                               this->make_xmpp_body(body), this->user_jid);
}

void Bridge::send_private_message(const Iid& iid, const std::string& body)
{
  if (iid.chan.empty() || iid.server.empty())
    return ;
  IrcClient* irc = this->get_irc_client(iid.server);
  if (irc)
    irc->send_private_message(iid.chan, body);
}

void Bridge::leave_irc_channel(Iid&& iid, std::string&& status_message)
{
  IrcClient* irc = this->get_irc_client(iid.server);
  if (irc)
    irc->send_part_command(iid.chan, status_message);
}

void Bridge::send_irc_nick_change(const Iid& iid, const std::string& new_nick)
{
  IrcClient* irc = this->get_irc_client(iid.server);
  if (irc)
    irc->send_nick_command(new_nick);
}

void Bridge::send_irc_kick(const Iid& iid, const std::string& target, const std::string& reason)
{
  IrcClient* irc = this->get_irc_client(iid.server);
  if (irc)
    irc->send_kick_command(iid.chan, target, reason);
}

void Bridge::set_channel_topic(const Iid& iid, const std::string& subject)
{
  IrcClient* irc = this->get_irc_client(iid.server);
  if (irc)
    irc->send_topic_command(iid.chan, subject);
}

void Bridge::send_message(const Iid& iid, const std::string& nick, const std::string& body, const bool muc)
{
  if (muc)
    this->xmpp->send_muc_message(iid.chan + "%" + iid.server, nick,
                                 this->make_xmpp_body(body), this->user_jid);
  else
    this->xmpp->send_message(iid.chan + "%" + iid.server,
                             this->make_xmpp_body(body), this->user_jid, "chat");
}

void Bridge::send_muc_leave(Iid&& iid, std::string&& nick, const std::string& message, const bool self)
{
  this->xmpp->send_muc_leave(std::move(iid.chan) + "%" + std::move(iid.server), std::move(nick), this->make_xmpp_body(message), this->user_jid, self);
  IrcClient* irc = this->get_irc_client(iid.server);
  if (irc && irc->number_of_joined_channels() == 0)
    irc->send_quit_command("");
}

void Bridge::send_nick_change(Iid&& iid,
                              const std::string& old_nick,
                              const std::string& new_nick,
                              const char user_mode,
                              const bool self)
{
  std::string affiliation;
  std::string role;
  std::tie(role, affiliation) = get_role_affiliation_from_irc_mode(user_mode);

  this->xmpp->send_nick_change(std::move(iid.chan) + "%" + std::move(iid.server),
                               old_nick, new_nick, affiliation, role, this->user_jid, self);
}

void Bridge::send_xmpp_message(const std::string& from, const std::string& author, const std::string& msg)
{
  std::string body;
  if (!author.empty())
    body = std::string("[") + author + std::string("] ") + msg;
  else
    body = msg;
  this->xmpp->send_message(from, this->make_xmpp_body(body), this->user_jid, "chat");
}

void Bridge::send_user_join(const std::string& hostname,
                            const std::string& chan_name,
                            const IrcUser* user,
                            const char user_mode,
                            const bool self)
{
  std::string affiliation;
  std::string role;
  std::tie(role, affiliation) = get_role_affiliation_from_irc_mode(user_mode);

  this->xmpp->send_user_join(chan_name + "%" + hostname, user->nick, user->host,
                             affiliation, role, this->user_jid, self);
}

void Bridge::send_topic(const std::string& hostname, const std::string& chan_name, const std::string topic)
{
  this->xmpp->send_topic(chan_name + "%" + hostname, this->make_xmpp_body(topic), this->user_jid);
}

std::string Bridge::get_own_nick(const Iid& iid)
{
  IrcClient* irc = this->get_irc_client(iid.server);
  if (irc)
    return irc->get_own_nick();
  return "";
}

size_t Bridge::active_clients() const
{
  return this->irc_clients.size();
}

void Bridge::kick_muc_user(Iid&& iid, const std::string& target, const std::string& reason, const std::string& author)
{
  this->xmpp->kick_user(iid.chan + "%" + iid.server, target, reason, author, this->user_jid);
}

void Bridge::send_nickname_conflict_error(const Iid& iid, const std::string& nickname)
{
  this->xmpp->send_nickname_conflict_error(iid.chan + "%" + iid.server, nickname, this->user_jid);
}

void Bridge::send_affiliation_role_change(const Iid& iid, const std::string& target, const char mode)
{
  std::string role;
  std::string affiliation;

  std::tie(role, affiliation) = get_role_affiliation_from_irc_mode(mode);
  this->xmpp->send_affiliation_role_change(iid.chan + "%" + iid.server, target, affiliation, role, this->user_jid);
}