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
|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2008 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "commands/cmd_whois.h"
#include "commands/cmd_stats.h"
#include "socket.h"
#include "wildcard.h"
#include "xline.h"
#include "transport.h"
#include "m_hash.h"
#include "socketengine.h"
#include "m_spanningtree/main.h"
#include "m_spanningtree/utils.h"
#include "m_spanningtree/treeserver.h"
#include "m_spanningtree/link.h"
#include "m_spanningtree/treesocket.h"
#include "m_spanningtree/resolvers.h"
#include "m_spanningtree/handshaketimer.h"
/* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h m_hash.h */
bool TreeSocket::ParseUID(const std::string &source, std::deque<std::string> ¶ms)
{
/** Do we have enough parameters:
* UID uuid age nick host dhost ident +modestr ip.string :gecos
*/
if (params.size() != 10)
{
if (!params.empty())
this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" KILL "+params[0]+" :Invalid client introduction ("+params[0]+" with only "+
ConvToStr(params.size())+" of 10 parameters?)");
return true;
}
time_t age_t = ConvToInt(params[1]);
time_t signon = ConvToInt(params[8]);
const char* tempnick = params[2].c_str();
std::string empty;
/* XXX probably validate UID length too -- w00t */
cmd_validation valid[] = { {"Nickname", 2, NICKMAX}, {"Hostname", 3, 64}, {"Displayed hostname", 4, 64}, {"Ident", 5, IDENTMAX + 1}, {"GECOS", 9, MAXGECOS}, {"", 0, 0} };
TreeServer* remoteserver = Utils->FindServer(source);
if (!remoteserver)
{
this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" KILL "+params[0]+" :Invalid client introduction (Unknown server "+source+")");
return true;
}
/* Check parameters for validity before introducing the client, discovered by dmb */
if (!age_t)
{
this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" KILL "+params[0]+" :Invalid client introduction (Invalid TS?)");
return true;
}
for (size_t x = 0; valid[x].length; ++x)
{
if (params[valid[x].param].length() > valid[x].length)
{
this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" KILL "+params[0]+" :Invalid client introduction (" + valid[x].item + " > " + ConvToStr(valid[x].length) + ")");
return true;
}
}
/* check for collision */
user_hash::iterator iter = this->Instance->Users->clientlist->find(tempnick);
if (iter != this->Instance->Users->clientlist->end())
{
/*
* Nick collision.
*/
Instance->Logs->Log("m_spanningtree",DEBUG,"*** Collision on %s", tempnick);
int collide = this->DoCollision(iter->second, age_t, params[5].c_str(), params[7].c_str(), params[0].c_str());
if (collide == 2)
{
/* remote client changed, make sure we change their nick for the hash too */
tempnick = params[0].c_str();
}
}
/* IMPORTANT NOTE: For remote users, we pass the UUID in the constructor. This automatically
* sets it up in the UUID hash for us.
*/
User* _new = NULL;
try
{
_new = new User(this->Instance, params[0]);
}
catch (...)
{
SendError("Protocol violation - Duplicate UUID '" + params[0] + "' on introduction of new user");
return false;
}
(*(this->Instance->Users->clientlist))[tempnick] = _new;
_new->SetFd(FD_MAGIC_NUMBER);
strlcpy(_new->nick, tempnick, NICKMAX - 1);
strlcpy(_new->host, params[3].c_str(),64);
strlcpy(_new->dhost, params[4].c_str(),64);
_new->server = this->Instance->FindServerNamePtr(remoteserver->GetName().c_str());
strlcpy(_new->ident, params[5].c_str(),IDENTMAX + 1);
strlcpy(_new->fullname, params[9].c_str(),MAXGECOS);
_new->registered = REG_ALL;
_new->signon = signon;
_new->age = age_t;
/* we need to remove the + from the modestring, so we can do our stuff */
std::string::size_type pos_after_plus = params[6].find_first_not_of('+');
if (pos_after_plus != std::string::npos)
params[6] = params[6].substr(pos_after_plus);
for (std::string::iterator v = params[6].begin(); v != params[6].end(); v++)
{
/* For each mode thats set, increase counter */
ModeHandler* mh = Instance->Modes->FindMode(*v, MODETYPE_USER);
if (mh)
{
mh->OnModeChange(_new, _new, NULL, empty, true);
_new->SetMode(*v, true);
mh->ChangeCount(1);
}
}
/* now we've done with modes processing, put the + back for remote servers */
params[6] = "+" + params[6];
#ifdef SUPPORT_IP6LINKS
if (params[7].find_first_of(":") != std::string::npos)
_new->SetSockAddr(AF_INET6, params[7].c_str(), 0);
else
#endif
_new->SetSockAddr(AF_INET, params[7].c_str(), 0);
Instance->Users->AddGlobalClone(_new);
bool dosend = true;
if ((this->Utils->quiet_bursts && remoteserver->bursting) || this->Instance->SilentULine(_new->server))
dosend = false;
if (dosend)
this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s] [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString(), _new->fullname);
params[9] = ":" + params[9];
Utils->DoOneToAllButSender(source, "UID", params, source);
FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
return true;
}
|
