Move src/commands/cmd_*.cpp to src/coremods[/core_*]/

1 files changed, 395 insertions, 0 deletions

diff --git a/src/coremods/core_who.cpp b/src/coremods/core_who.cpp
new file mode 100644
index 000000000..dc39e296c
--- /dev/null
+++ b/src/coremods/core_who.cpp
@@ -0,0 +1,395 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ *
+ * 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"
+
+/** Handle /WHO.
+ */
+class CommandWho : public Command
+{
+	bool CanView(Channel* chan, User* user);
+	bool opt_viewopersonly;
+	bool opt_showrealhost;
+	bool opt_realname;
+	bool opt_mode;
+	bool opt_ident;
+	bool opt_metadata;
+	bool opt_port;
+	bool opt_away;
+	bool opt_local;
+	bool opt_far;
+	bool opt_time;
+	ChanModeReference secretmode;
+	ChanModeReference privatemode;
+	UserModeReference invisiblemode;
+
+	Membership* get_first_visible_channel(User* u)
+	{
+		for (UCListIter i = u->chans.begin(); i != u->chans.end(); ++i)
+		{
+			Membership* memb = *i;
+			if (!memb->chan->IsModeSet(secretmode))
+				return memb;
+		}
+		return NULL;
+	}
+
+ public:
+	/** Constructor for who.
+	 */
+	CommandWho(Module* parent)
+		: Command(parent, "WHO", 1)
+		, secretmode(parent, "secret")
+		, privatemode(parent, "private")
+		, invisiblemode(parent, "invisible")
+	{
+		syntax = "<server>|<nickname>|<channel>|<realname>|<host>|0 [ohurmMiaplf]";
+	}
+
+	void SendWhoLine(User* user, const std::vector<std::string>& parms, const std::string& initial, Membership* memb, User* u, std::vector<std::string>& whoresults);
+	/** Handle command.
+	 * @param parameters The parameters to the command
+	 * @param user The user issuing the command
+	 * @return A value from CmdResult to indicate command success or failure.
+	 */
+	CmdResult Handle(const std::vector<std::string>& parameters, User *user);
+	bool whomatch(User* cuser, User* user, const char* matchtext);
+};
+
+bool CommandWho::whomatch(User* cuser, User* user, const char* matchtext)
+{
+	bool match = false;
+	bool positive = false;
+
+	if (user->registered != REG_ALL)
+		return false;
+
+	if (opt_local && !IS_LOCAL(user))
+		return false;
+	else if (opt_far && IS_LOCAL(user))
+		return false;
+
+	if (opt_mode)
+	{
+		for (const char* n = matchtext; *n; n++)
+		{
+			if (*n == '+')
+			{
+				positive = true;
+				continue;
+			}
+			else if (*n == '-')
+			{
+				positive = false;
+				continue;
+			}
+			if (user->IsModeSet(*n) != positive)
+				return false;
+		}
+		return true;
+	}
+	else
+	{
+		/*
+		 * This was previously one awesome pile of ugly nested if, when really, it didn't need
+		 * to be, since only one condition was ever checked, a chained if works just fine.
+		 * -- w00t
+		 */
+		if (opt_metadata)
+		{
+			match = false;
+			const Extensible::ExtensibleStore& list = user->GetExtList();
+			for(Extensible::ExtensibleStore::const_iterator i = list.begin(); i != list.end(); ++i)
+				if (InspIRCd::Match(i->first->name, matchtext))
+					match = true;
+		}
+		else if (opt_realname)
+			match = InspIRCd::Match(user->fullname, matchtext);
+		else if (opt_showrealhost)
+			match = InspIRCd::Match(user->host, matchtext, ascii_case_insensitive_map);
+		else if (opt_ident)
+			match = InspIRCd::Match(user->ident, matchtext, ascii_case_insensitive_map);
+		else if (opt_port)
+		{
+			irc::portparser portrange(matchtext, false);
+			long portno = -1;
+			while ((portno = portrange.GetToken()))
+				if (IS_LOCAL(user) && portno == IS_LOCAL(user)->GetServerPort())
+				{
+					match = true;
+					break;
+				}
+		}
+		else if (opt_away)
+			match = InspIRCd::Match(user->awaymsg, matchtext);
+		else if (opt_time)
+		{
+			long seconds = InspIRCd::Duration(matchtext);
+
+			// Okay, so time matching, we want all users connected `seconds' ago
+			if (user->age >= ServerInstance->Time() - seconds)
+				match = true;
+		}
+
+		/*
+		 * Once the conditionals have been checked, only check dhost/nick/server
+		 * if they didn't match this user -- and only match if we don't find a match.
+		 *
+		 * This should make things minutely faster, and again, less ugly.
+		 * -- w00t
+		 */
+		if (!match)
+			match = InspIRCd::Match(user->dhost, matchtext, ascii_case_insensitive_map);
+
+		if (!match)
+			match = InspIRCd::Match(user->nick, matchtext);
+
+		/* Don't allow server name matches if HideWhoisServer is enabled, unless the command user has the priv */
+		if (!match && (ServerInstance->Config->HideWhoisServer.empty() || cuser->HasPrivPermission("users/auspex")))
+			match = InspIRCd::Match(user->server->GetName(), matchtext);
+
+		return match;
+	}
+}
+
+bool CommandWho::CanView(Channel* chan, User* user)
+{
+	if (!user || !chan)
+		return false;
+
+	/* Bug #383 - moved higher up the list, because if we are in the channel
+	 * we can see all its users
+	 */
+	if (chan->HasUser(user))
+		return true;
+	/* Opers see all */
+	if (user->HasPrivPermission("users/auspex"))
+		return true;
+	/* Cant see inside a +s or a +p channel unless we are a member (see above) */
+	else if (!chan->IsModeSet(secretmode) && !chan->IsModeSet(privatemode))
+		return true;
+
+	return false;
+}
+
+void CommandWho::SendWhoLine(User* user, const std::vector<std::string>& parms, const std::string& initial, Membership* memb, User* u, std::vector<std::string>& whoresults)
+{
+	if (!memb)
+		memb = get_first_visible_channel(u);
+
+	std::string wholine = initial + (memb ? memb->chan->name : "*") + " " + u->ident + " " +
+		(opt_showrealhost ? u->host : u->dhost) + " ";
+	if (!ServerInstance->Config->HideWhoisServer.empty() && !user->HasPrivPermission("servers/auspex"))
+		wholine.append(ServerInstance->Config->HideWhoisServer);
+	else
+		wholine.append(u->server->GetName());
+
+	wholine.append(" " + u->nick + " ");
+
+	/* away? */
+	if (u->IsAway())
+	{
+		wholine.append("G");
+	}
+	else
+	{
+		wholine.append("H");
+	}
+
+	/* oper? */
+	if (u->IsOper())
+	{
+		wholine.push_back('*');
+	}
+
+	if (memb)
+		wholine.push_back(memb->GetPrefixChar());
+
+	wholine.append(" :0 " + u->fullname);
+
+	FOREACH_MOD(OnSendWhoLine, (user, parms, u, memb, wholine));
+
+	if (!wholine.empty())
+		whoresults.push_back(wholine);
+}
+
+CmdResult CommandWho::Handle (const std::vector<std::string>& parameters, User *user)
+{
+	/*
+	 * XXX - RFC says:
+	 *   The <name> passed to WHO is matched against users' host, server, real
+	 *   name and nickname
+	 * Currently, we support WHO #chan, WHO nick, WHO 0, WHO *, and the addition of a 'o' flag, as per RFC.
+	 */
+
+	/* WHO options */
+	opt_viewopersonly = false;
+	opt_showrealhost = false;
+	opt_realname = false;
+	opt_mode = false;
+	opt_ident = false;
+	opt_metadata = false;
+	opt_port = false;
+	opt_away = false;
+	opt_local = false;
+	opt_far = false;
+	opt_time = false;
+
+	std::vector<std::string> whoresults;
+	std::string initial = "352 " + user->nick + " ";
+
+	/* Change '0' into '*' so the wildcard matcher can grok it */
+	std::string matchtext = ((parameters[0] == "0") ? "*" : parameters[0]);
+
+	// WHO flags count as a wildcard
+	bool usingwildcards = ((parameters.size() > 1) || (matchtext.find_first_of("*?.") != std::string::npos));
+
+	if (parameters.size() > 1)
+	{
+		for (std::string::const_iterator iter = parameters[1].begin(); iter != parameters[1].end(); ++iter)
+		{
+			switch (*iter)
+			{
+				case 'o':
+					opt_viewopersonly = true;
+					break;
+				case 'h':
+					if (user->HasPrivPermission("users/auspex"))
+						opt_showrealhost = true;
+					break;
+				case 'r':
+					opt_realname = true;
+					break;
+				case 'm':
+					if (user->HasPrivPermission("users/auspex"))
+						opt_mode = true;
+					break;
+				case 'M':
+					if (user->HasPrivPermission("users/auspex"))
+						opt_metadata = true;
+					break;
+				case 'i':
+					opt_ident = true;
+					break;
+				case 'p':
+					if (user->HasPrivPermission("users/auspex"))
+						opt_port = true;
+					break;
+				case 'a':
+					opt_away = true;
+					break;
+				case 'l':
+					if (user->HasPrivPermission("users/auspex") || ServerInstance->Config->HideWhoisServer.empty())
+						opt_local = true;
+					break;
+				case 'f':
+					if (user->HasPrivPermission("users/auspex") || ServerInstance->Config->HideWhoisServer.empty())
+						opt_far = true;
+					break;
+				case 't':
+					opt_time = true;
+					break;
+			}
+		}
+	}
+
+
+	/* who on a channel? */
+	Channel* ch = ServerInstance->FindChan(matchtext);
+
+	if (ch)
+	{
+		if (CanView(ch,user))
+		{
+			bool inside = ch->HasUser(user);
+
+			/* who on a channel. */
+			const UserMembList *cu = ch->GetUsers();
+
+			for (UserMembCIter i = cu->begin(); i != cu->end(); i++)
+			{
+				/* None of this applies if we WHO ourselves */
+				if (user != i->first)
+				{
+					/* opers only, please */
+					if (opt_viewopersonly && !i->first->IsOper())
+						continue;
+
+					/* If we're not inside the channel, hide +i users */
+					if (i->first->IsModeSet(invisiblemode) && !inside && !user->HasPrivPermission("users/auspex"))
+						continue;
+				}
+
+				SendWhoLine(user, parameters, initial, i->second, i->first, whoresults);
+			}
+		}
+	}
+	else
+	{
+		/* Match against wildcard of nick, server or host */
+		if (opt_viewopersonly)
+		{
+			/* Showing only opers */
+			for (std::list<User*>::iterator i = ServerInstance->Users->all_opers.begin(); i != ServerInstance->Users->all_opers.end(); i++)
+			{
+				User* oper = *i;
+
+				if (whomatch(user, oper, matchtext.c_str()))
+				{
+					if (!user->SharesChannelWith(oper))
+					{
+						if (usingwildcards && (!oper->IsModeSet(invisiblemode)) && (!user->HasPrivPermission("users/auspex")))
+							continue;
+					}
+
+					SendWhoLine(user, parameters, initial, NULL, oper, whoresults);
+				}
+			}
+		}
+		else
+		{
+			for (user_hash::iterator i = ServerInstance->Users->clientlist->begin(); i != ServerInstance->Users->clientlist->end(); i++)
+			{
+				if (whomatch(user, i->second, matchtext.c_str()))
+				{
+					if (!user->SharesChannelWith(i->second))
+					{
+						if (usingwildcards && (i->second->IsModeSet(invisiblemode)) && (!user->HasPrivPermission("users/auspex")))
+							continue;
+					}
+
+					SendWhoLine(user, parameters, initial, NULL, i->second, whoresults);
+				}
+			}
+		}
+	}
+	/* Send the results out */
+	for (std::vector<std::string>::const_iterator n = whoresults.begin(); n != whoresults.end(); n++)
+		user->WriteServ(*n);
+	user->WriteNumeric(RPL_ENDOFWHO, "%s :End of /WHO list.", *parameters[0].c_str() ? parameters[0].c_str() : "*");
+
+	// Penalize the user a bit for large queries
+	// (add one unit of penalty per 200 results)
+	if (IS_LOCAL(user))
+		IS_LOCAL(user)->CommandFloodPenalty += whoresults.size() * 5;
+	return CMD_SUCCESS;
+}
+
+COMMAND_INIT(CommandWho)