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
|
/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
*
* This file is part of InspIRCd. InspIRCd is free software: you can
* redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "inspircd.h"
#include "main.h"
#include "treesocket.h"
#include "treeserver.h"
static std::string newline("\n");
void TreeSocket::WriteLine(const std::string& original_line)
{
if (LinkState == CONNECTED)
{
if (original_line.c_str()[0] != ':')
{
ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Sending line without server prefix!");
WriteLine(":" + ServerInstance->Config->GetSID() + " " + original_line);
return;
}
if (proto_version != ProtocolVersion)
{
std::string line = original_line;
std::string::size_type a = line.find(' ');
std::string::size_type b = line.find(' ', a + 1);
std::string command = line.substr(a + 1, b-a-1);
// now try to find a translation entry
// TODO a more efficient lookup method will be needed later
if (proto_version < 1205)
{
if (command == "IJOIN")
{
// Convert
// :<uid> IJOIN <chan> [<ts> [<flags>]]
// to
// :<sid> FJOIN <chan> <ts> + [<flags>],<uuid>
std::string::size_type c = line.find(' ', b + 1);
if (c == std::string::npos)
{
// No TS or modes in the command
// :22DAAAAAB IJOIN #chan
const std::string channame = line.substr(b+1, c-b-1);
Channel* chan = ServerInstance->FindChan(channame);
if (!chan)
return;
line.push_back(' ');
line.append(ConvToStr(chan->age));
line.append(" + ,");
}
else
{
std::string::size_type d = line.find(' ', c + 1);
if (d == std::string::npos)
{
// TS present, no modes
// :22DAAAAAC IJOIN #chan 12345
line.append(" + ,");
}
else
{
// Both TS and modes are present
// :22DAAAAAC IJOIN #chan 12345 ov
std::string::size_type e = line.find(' ', d + 1);
if (e != std::string::npos)
line.erase(e);
line.insert(d, " +");
line.push_back(',');
}
}
// Move the uuid to the end and replace the I with an F
line.append(line.substr(1, 9));
line.erase(4, 6);
line[5] = 'F';
}
else if (command == "RESYNC")
return;
else if (command == "METADATA")
{
// Drop TS for channel METADATA, translate METADATA operquit into an OPERQUIT command
// :sid METADATA #target TS extname ...
// A B C D
if (b == std::string::npos)
return;
std::string::size_type c = line.find(' ', b + 1);
if (c == std::string::npos)
return;
std::string::size_type d = line.find(' ', c + 1);
if (d == std::string::npos)
return;
if (line[b + 1] == '#')
{
// We're sending channel metadata
line.erase(c, d-c);
}
else if (line.substr(c, d-c) == " operquit")
{
// ":22D METADATA 22DAAAAAX operquit :message" -> ":22DAAAAAX OPERQUIT :message"
line = ":" + line.substr(b+1, c-b) + "OPERQUIT" + line.substr(d);
}
}
else if (command == "FTOPIC")
{
// Drop channel TS for FTOPIC
// :sid FTOPIC #target TS TopicTS ...
// A B C D
if (b == std::string::npos)
return;
std::string::size_type c = line.find(' ', b + 1);
if (c == std::string::npos)
return;
std::string::size_type d = line.find(' ', c + 1);
if (d == std::string::npos)
return;
line.erase(c, d-c);
}
else if ((command == "PING") || (command == "PONG"))
{
// :22D PING 20D
if (line.length() < 13)
return;
// Insert the source SID (and a space) between the command and the first parameter
line.insert(10, line.substr(1, 4));
}
else if (command == "OPERTYPE")
{
std::string::size_type colon = line.find(':', b);
if (colon != std::string::npos)
{
for (std::string::iterator i = line.begin()+colon; i != line.end(); ++i)
{
if (*i == ' ')
*i = '_';
}
line.erase(colon, 1);
}
}
}
ServerInstance->Logs->Log(MODNAME, LOG_RAWIO, "S[%d] O %s", this->GetFd(), line.c_str());
this->WriteData(line);
this->WriteData(newline);
return;
}
}
ServerInstance->Logs->Log(MODNAME, LOG_RAWIO, "S[%d] O %s", this->GetFd(), original_line.c_str());
this->WriteData(original_line);
this->WriteData(newline);
}
namespace
{
bool InsertCurrentChannelTS(std::vector<std::string>& params)
{
Channel* chan = ServerInstance->FindChan(params[0]);
if (!chan)
return false;
// Insert the current TS of the channel between the first and the second parameters
params.insert(params.begin()+1, ConvToStr(chan->age));
return true;
}
}
bool TreeSocket::PreProcessOldProtocolMessage(User*& who, std::string& cmd, std::vector<std::string>& params)
{
if ((cmd == "METADATA") && (params.size() >= 3) && (params[0][0] == '#'))
{
// :20D METADATA #channel extname :extdata
return InsertCurrentChannelTS(params);
}
else if ((cmd == "FTOPIC") && (params.size() >= 4))
{
// :20D FTOPIC #channel 100 Attila :topic text
return InsertCurrentChannelTS(params);
}
else if ((cmd == "PING") || (cmd == "PONG"))
{
if (params.size() == 1)
{
// If it's a PING with 1 parameter, reply with a PONG now, if it's a PONG with 1 parameter (weird), do nothing
if (cmd[1] == 'I')
this->WriteData(":" + ServerInstance->Config->GetSID() + " PONG " + params[0] + newline);
// Don't process this message further
return false;
}
// :20D PING 20D 22D
// :20D PONG 20D 22D
// Drop the first parameter
params.erase(params.begin());
// If the target is a server name, translate it to a SID
if (!InspIRCd::IsSID(params[0]))
{
TreeServer* server = Utils->FindServer(params[0]);
if (!server)
{
// We've no idea what this is, log and stop processing
ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Received a " + cmd + " with an unknown target: \"" + params[0] + "\", command dropped");
return false;
}
params[0] = server->GetID();
}
}
else if ((cmd == "GLINE") || (cmd == "KLINE") || (cmd == "ELINE") || (cmd == "ZLINE") || (cmd == "QLINE"))
{
// Fix undocumented protocol usage: translate GLINE, ZLINE, etc. into ADDLINE or DELLINE
if ((params.size() != 1) && (params.size() != 3))
return false;
parameterlist p;
p.push_back(cmd.substr(0, 1));
p.push_back(params[0]);
if (params.size() == 3)
{
cmd = "ADDLINE";
p.push_back(who->nick);
p.push_back(ConvToStr(ServerInstance->Time()));
p.push_back(ConvToStr(InspIRCd::Duration(params[1])));
p.push_back(params[2]);
}
else
cmd = "DELLINE";
params.swap(p);
}
else if (cmd == "SVSMODE")
{
cmd = "MODE";
}
else if (cmd == "OPERQUIT")
{
// Translate OPERQUIT into METADATA
if (params.empty())
return false;
cmd = "METADATA";
params.insert(params.begin(), who->uuid);
params.insert(params.begin()+1, "operquit");
who = MyRoot->ServerUser;
}
return true; // Passthru
}
|
