1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
26 /* $ModDesc: Provides support for RFC 1413 ident lookups */
28 // Version 1.5.0.0 - Updated to use InspSocket, faster and neater.
30 class RFC1413 : public InspSocket
33 Server* Srv; // Server* class used for core communications
34 userrec* u; // user record that the lookup is associated with
35 sockaddr_in sock_us; // our port number
36 sockaddr_in sock_them; // their port number
37 socklen_t uslen; // length of our port number
38 socklen_t themlen; // length of their port number
39 char ident_request[128]; // buffer used to make up the request string
42 // The destructor makes damn sure the socket is freed :)
43 RFC1413(userrec* user, int maxtime, Server* S) : InspSocket(user->host, 113, false, maxtime), Srv(S), u(user)
45 Srv->Log(DEBUG,"Ident: associated with user "+std::string(user->nick));
48 virtual void OnTimeout()
50 // When we timeout, the connection failed within the allowed timeframe,
51 // so we just display a notice, and tidy off the ident_data.
52 u->Shrink("ident_data");
53 Srv->SendServ(u->fd,"NOTICE "+std::string(u->nick)+" :*** Could not find your ident, using "+std::string(u->ident)+" instead.");
56 virtual bool OnDataReady()
58 std::string databuf = this->Read();
62 strlcpy(ibuf,databuf.c_str(),1024);
63 Srv->Log(DEBUG,"Received ident response");
65 char* section = strtok_r(ibuf,":",&savept);
68 if (strstr(section,"USERID"))
70 section = strtok_r(NULL,":",&savept);
73 // ID type, usually UNIX or OTHER... we dont want it, so read the next token
74 section = strtok_r(NULL,":",&savept);
77 while (*section == ' ') section++; // strip leading spaces
78 int t = strlen(section);
79 for (int j = 0; j < t; j++)
80 if ((section[j] < 33) || (section[j]>126))
81 section[j] = '\0'; // truncate at invalid chars
84 strlcpy(u->ident,section,IDENTMAX);
85 Srv->Log(DEBUG,"IDENT SET: "+std::string(u->ident));
86 Srv->SendServ(u->fd,"NOTICE "+std::string(u->nick)+" :*** Found your ident: "+std::string(u->ident));
92 section = strtok_r(NULL,":",&savept);
98 virtual void OnClose()
100 // tidy up after ourselves when the connection is done.
101 // We receive this event straight after a timeout, too.
102 u->Shrink("ident_data");
105 virtual bool OnConnected()
107 uslen = sizeof(sock_us);
108 themlen = sizeof(sock_them);
109 if ((getsockname(this->u->fd,(sockaddr*)&sock_us,&uslen) || getpeername(this->u->fd, (sockaddr*)&sock_them, &themlen)))
111 Srv->Log(DEBUG,"Ident: failed to get socket names, bailing");
116 // send the request in the following format: theirsocket,oursocket
117 snprintf(ident_request,127,"%d,%d\r\n",ntohs(sock_them.sin_port),ntohs(sock_us.sin_port));
118 this->Write(ident_request);
119 Srv->Log(DEBUG,"Sent ident request, waiting for reply");
125 class ModuleIdent : public Module
135 Conf = new ConfigReader;
136 IdentTimeout = Conf->ReadInteger("ident","timeout",0,true);
142 ModuleIdent(Server* Me)
149 void Implements(char* List)
151 List[I_OnRehash] = List[I_OnUserRegister] = List[I_OnCheckReady] = List[I_OnUserDisconnect] = 1;
154 virtual void OnRehash(std::string parameter)
159 virtual void OnUserRegister(userrec* user)
161 // when the new user connects, before they authenticate with USER/NICK/PASS, we do
162 // their ident lookup. We do this by instantiating an object of type RFC1413, which
163 // is derived from InspSocket, and inserting it into the socket engine using the
164 // Server::AddSocket() call.
165 Srv->SendServ(user->fd,"NOTICE "+std::string(user->nick)+" :*** Looking up your ident...");
166 RFC1413* ident = new RFC1413(user, IdentTimeout, Srv);
167 user->Extend("ident_data", (char*)ident);
168 Srv->AddSocket(ident);
171 virtual bool OnCheckReady(userrec* user)
173 // The socket engine will clean up their ident request for us when it completes,
174 // either due to timeout or due to closing, so, we just hold them until they dont
175 // have an ident field any more.
176 RFC1413* ident = (RFC1413*)user->GetExt("ident_data");
180 virtual void OnUserDisconnect(userrec* user)
182 // when the user quits tidy up any ident lookup they have pending to keep things tidy.
183 // When we call RemoveSocket, the abstractions tied into the system evnetually work their
184 // way to RFC1459::OnClose(), which shrinks off the ident_data for us, so we dont need
185 // to do it here. If we don't tidy this up, there may still be lingering idents for users
186 // who have quit, as class RFC1459 is only loosely bound to userrec* via a pair of pointers
187 // and this would leave at least one of the invalid ;)
188 RFC1413* ident = (RFC1413*)user->GetExt("ident_data");
191 Srv->RemoveSocket(ident);
195 virtual ~ModuleIdent()
199 virtual Version GetVersion()
201 return Version(1,5,0,0,VF_VENDOR);
206 class ModuleIdentFactory : public ModuleFactory
213 ~ModuleIdentFactory()
217 virtual Module * CreateModule(Server* Me)
219 return new ModuleIdent(Me);
225 extern "C" void * init_module( void )
227 return new ModuleIdentFactory;