2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
7 * This file is part of InspIRCd. InspIRCd is free software: you can
8 * redistribute it and/or modify it under the terms of the GNU General Public
9 * License as published by the Free Software Foundation, version 2.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 /** Handle /WHO. These command handlers can be reloaded by the core,
24 * and handle basic RFC1459 commands. Commands within modules work
25 * the same way, however, they can be fully unloaded, where these
28 class CommandWho : public Command
30 bool CanView(Channel* chan, User* user);
31 bool opt_viewopersonly;
32 bool opt_showrealhost;
44 /** Constructor for who.
46 CommandWho ( Module* parent) : Command(parent,"WHO", 1) {
47 syntax = "<server>|<nickname>|<channel>|<realname>|<host>|0 [ohurmMiaplf]";
49 void SendWhoLine(User* user, const std::vector<std::string>& parms, const std::string &initial, Channel* ch, User* u, std::vector<std::string> &whoresults);
51 * @param parameters The parameters to the comamnd
52 * @param pcnt The number of parameters passed to teh command
53 * @param user The user issuing the command
54 * @return A value from CmdResult to indicate command success or failure.
56 CmdResult Handle(const std::vector<std::string>& parameters, User *user);
57 bool whomatch(User* cuser, User* user, const char* matchtext);
61 static Channel* get_first_visible_channel(User *source, User *u)
63 UCListIter i = u->chans.begin();
64 while (i != u->chans.end())
68 /* XXX move the +I check into m_hidechans */
69 if (source == u || !(c->IsModeSet('s') || c->IsModeSet('p') || u->IsModeSet('I')) || c->HasUser(source))
75 bool CommandWho::whomatch(User* cuser, User* user, const char* matchtext)
78 bool positive = false;
80 if (user->registered != REG_ALL)
83 if (opt_local && !IS_LOCAL(user))
85 else if (opt_far && IS_LOCAL(user))
90 for (const char* n = matchtext; *n; n++)
102 if (user->IsModeSet(*n) != positive)
110 * This was previously one awesome pile of ugly nested if, when really, it didn't need
111 * to be, since only one condition was ever checked, a chained if works just fine.
117 const Extensible::ExtensibleStore& list = user->GetExtList();
118 for(Extensible::ExtensibleStore::const_iterator i = list.begin(); i != list.end(); ++i)
119 if (InspIRCd::Match(i->first->name, matchtext))
122 else if (opt_realname)
123 match = InspIRCd::Match(user->fullname, matchtext);
124 else if (opt_showrealhost)
125 match = InspIRCd::Match(user->host, matchtext, ascii_case_insensitive_map);
127 match = InspIRCd::Match(user->ident, matchtext, ascii_case_insensitive_map);
130 irc::portparser portrange(matchtext, false);
132 while ((portno = portrange.GetToken()))
133 if (IS_LOCAL(user) && portno == IS_LOCAL(user)->GetServerPort())
140 match = InspIRCd::Match(user->awaymsg, matchtext);
143 long seconds = ServerInstance->Duration(matchtext);
145 // Okay, so time matching, we want all users connected `seconds' ago
146 if (user->signon >= ServerInstance->Time() - seconds)
151 * Once the conditionals have been checked, only check dhost/nick/server
152 * if they didn't match this user -- and only match if we don't find a match.
154 * This should make things minutely faster, and again, less ugly.
158 match = InspIRCd::Match(user->dhost, matchtext, ascii_case_insensitive_map);
161 match = InspIRCd::Match(user->nick, matchtext);
163 /* Don't allow server name matches if HideWhoisServer is enabled, unless the command user has the priv */
164 if (!match && (ServerInstance->Config->HideWhoisServer.empty() || cuser->HasPrivPermission("users/auspex")))
165 match = InspIRCd::Match(user->server, matchtext);
171 bool CommandWho::CanView(Channel* chan, User* user)
176 /* Bug #383 - moved higher up the list, because if we are in the channel
177 * we can see all its users
179 if (chan->HasUser(user))
182 if (user->HasPrivPermission("users/auspex"))
184 /* Cant see inside a +s or a +p channel unless we are a member (see above) */
185 else if (!chan->IsModeSet('s') && !chan->IsModeSet('p'))
191 void CommandWho::SendWhoLine(User* user, const std::vector<std::string>& parms, const std::string &initial, Channel* ch, User* u, std::vector<std::string> &whoresults)
194 ch = get_first_visible_channel(user, u);
196 std::string wholine = initial + (ch ? ch->name : "*") + " " + u->ident + " " +
197 (opt_showrealhost ? u->host : u->dhost) + " ";
198 if (!ServerInstance->Config->HideWhoisServer.empty() && !user->HasPrivPermission("servers/auspex"))
199 wholine.append(ServerInstance->Config->HideWhoisServer);
201 wholine.append(u->server);
203 wholine.append(" " + u->nick + " ");
218 wholine.push_back('*');
222 wholine.append(ch->GetPrefixChar(u));
224 wholine.append(" :0 " + u->fullname);
226 FOREACH_MOD(I_OnSendWhoLine, OnSendWhoLine(user, parms, u, wholine));
228 if (!wholine.empty())
229 whoresults.push_back(wholine);
232 CmdResult CommandWho::Handle (const std::vector<std::string>& parameters, User *user)
236 * The <name> passed to WHO is matched against users' host, server, real
238 * Currently, we support WHO #chan, WHO nick, WHO 0, WHO *, and the addition of a 'o' flag, as per RFC.
242 opt_viewopersonly = false;
243 opt_showrealhost = false;
244 opt_realname = false;
247 opt_metadata = false;
255 std::vector<std::string> whoresults;
256 std::string initial = "352 " + user->nick + " ";
258 char matchtext[MAXBUF];
259 bool usingwildcards = false;
261 /* Change '0' into '*' so the wildcard matcher can grok it */
262 if (parameters[0] == "0")
263 strlcpy(matchtext, "*", MAXBUF);
265 strlcpy(matchtext, parameters[0].c_str(), MAXBUF);
267 for (const char* check = matchtext; *check; check++)
269 if (*check == '*' || *check == '?' || *check == '.')
271 usingwildcards = true;
276 if (parameters.size() > 1)
278 /* Fix for bug #444, WHO flags count as a wildcard */
279 usingwildcards = true;
281 for (std::string::const_iterator iter = parameters[1].begin(); iter != parameters[1].end(); ++iter)
286 opt_viewopersonly = true;
289 if (user->HasPrivPermission("users/auspex"))
290 opt_showrealhost = true;
296 if (user->HasPrivPermission("users/auspex"))
300 if (user->HasPrivPermission("users/auspex"))
307 if (user->HasPrivPermission("users/auspex"))
314 if (user->HasPrivPermission("users/auspex") || ServerInstance->Config->HideWhoisServer.empty())
318 if (user->HasPrivPermission("users/auspex") || ServerInstance->Config->HideWhoisServer.empty())
329 /* who on a channel? */
330 ch = ServerInstance->FindChan(matchtext);
334 if (CanView(ch,user))
336 bool inside = ch->HasUser(user);
338 /* who on a channel. */
339 const UserMembList *cu = ch->GetUsers();
341 for (UserMembCIter i = cu->begin(); i != cu->end(); i++)
343 /* None of this applies if we WHO ourselves */
344 if (user != i->first)
346 /* opers only, please */
347 if (opt_viewopersonly && !IS_OPER(i->first))
350 /* If we're not inside the channel, hide +i users */
351 if (i->first->IsModeSet('i') && !inside && !user->HasPrivPermission("users/auspex"))
355 SendWhoLine(user, parameters, initial, ch, i->first, whoresults);
361 /* Match against wildcard of nick, server or host */
362 if (opt_viewopersonly)
364 /* Showing only opers */
365 for (std::list<User*>::iterator i = ServerInstance->Users->all_opers.begin(); i != ServerInstance->Users->all_opers.end(); i++)
369 if (whomatch(user, oper, matchtext))
371 if (!user->SharesChannelWith(oper))
373 if (usingwildcards && (oper->IsModeSet('i')) && (!user->HasPrivPermission("users/auspex")))
377 SendWhoLine(user, parameters, initial, NULL, oper, whoresults);
383 for (user_hash::iterator i = ServerInstance->Users->clientlist->begin(); i != ServerInstance->Users->clientlist->end(); i++)
385 if (whomatch(user, i->second, matchtext))
387 if (!user->SharesChannelWith(i->second))
389 if (usingwildcards && (i->second->IsModeSet('i')) && (!user->HasPrivPermission("users/auspex")))
393 SendWhoLine(user, parameters, initial, NULL, i->second, whoresults);
398 /* Send the results out */
399 for (std::vector<std::string>::const_iterator n = whoresults.begin(); n != whoresults.end(); n++)
401 user->WriteNumeric(315, "%s %s :End of /WHO list.",user->nick.c_str(), *parameters[0].c_str() ? parameters[0].c_str() : "*");
403 // Penalize the user a bit for large queries
404 // (add one unit of penalty per 200 results)
406 IS_LOCAL(user)->CommandFloodPenalty += whoresults.size() * 5;
410 COMMAND_INIT(CommandWho)