Move cmd_*.cpp to src/commands/. Not done in the nicest of ways yet, but ah well :p

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@8299 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 169 insertions, 0 deletions

diff --git a/src/commands/cmd_nick.cpp b/src/commands/cmd_nick.cpp
new file mode 100644
index 000000000..52e562d02
--- /dev/null
+++ b/src/commands/cmd_nick.cpp
@@ -0,0 +1,169 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2007 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 "xline.h"
+#include "commands/cmd_nick.h"
+
+extern "C" DllExport Command* init_command(InspIRCd* Instance)
+{
+	return new CommandNick(Instance);
+}
+
+/** Handle nick changes from users.
+ * NOTE: If you are used to ircds based on ircd2.8, and are looking
+ * for the client introduction code in here, youre in the wrong place.
+ * You need to look in the spanningtree module for this!
+ */
+CmdResult CommandNick::Handle (const char** parameters, int pcnt, User *user)
+{
+	char oldnick[NICKMAX];
+
+	if (!*parameters[0] || !*user->nick)
+	{
+		/* We cant put blanks in the parameters, so for this (extremely rare) issue we just put '*' here. */
+		user->WriteServ("432 %s * :Erroneous Nickname", *user->nick ? user->nick : "*");
+		return CMD_FAILURE;
+	}
+
+	if (irc::string(user->nick) == irc::string(parameters[0]))
+	{
+		/* If its exactly the same, even case, dont do anything. */
+		if (!strcmp(user->nick,parameters[0]))
+			return CMD_SUCCESS;
+
+		/* Its a change of case. People insisted that they should be
+		 * able to do silly things like this even though the RFC says
+		 * the nick AAA is the same as the nick aaa.
+		 */
+		strlcpy(oldnick, user->nick, NICKMAX - 1);
+		int MOD_RESULT = 0;
+		FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(user,parameters[0]));
+		if (MOD_RESULT)
+			return CMD_FAILURE;
+		if (user->registered == REG_ALL)
+			user->WriteCommon("NICK %s",parameters[0]);
+		strlcpy(user->nick, parameters[0], NICKMAX - 1);
+		user->InvalidateCache();
+		FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(user,oldnick));
+		return CMD_SUCCESS;
+	}
+	else
+	{
+		QLine* mq = ServerInstance->XLines->matches_qline(parameters[0]);
+		if (mq)
+		{
+			ServerInstance->SNO->WriteToSnoMask('x', "Q-Lined nickname %s from %s!%s@%s: %s", parameters[0], user->nick, user->ident, user->host, mq->reason);
+			user->WriteServ("432 %s %s :Invalid nickname: %s",user->nick,parameters[0], mq->reason);
+			return CMD_FAILURE;
+		}
+
+		/*
+		 * Uh oh.. if the nickname is in use, and it's not in use by the person using it (doh) --
+		 * then we have a potential collide. Check whether someone else is camping on the nick
+		 * (i.e. connect -> send NICK, don't send USER.) If they are camping, force-change the
+		 * camper to their UID, and allow the incoming nick change.
+		 *
+		 * If the guy using the nick is already using it, tell the incoming nick change to gtfo,
+		 * because the nick is already (rightfully) in use. -- w00t
+		 */
+		User* InUse = ServerInstance->FindNickOnly(parameters[0]);
+		if (InUse && (InUse != user) && ((ServerInstance->IsNick(parameters[0]) || allowinvalid)))
+		{
+			if (InUse->registered != REG_ALL)
+			{
+				/* force the camper to their UUID, and ask them to re-send a NICK. */
+				InUse->WriteTo(InUse, "NICK %s", InUse->uuid);
+				InUse->WriteServ("433 %s %s :Nickname overruled.", InUse->nick, InUse->nick);
+				InUse->UpdateNickHash(InUse->uuid);
+				strlcpy(InUse->nick, InUse->uuid, NICKMAX - 1);
+				InUse->InvalidateCache();
+				InUse->registered &= ~REG_NICK;
+			}
+			else
+			{
+				/* No camping, tell the incoming user  to stop trying to change nick ;p */
+				user->WriteServ("433 %s %s :Nickname is already in use.", user->registered >= REG_NICK ? user->nick : "*", parameters[0]);
+				return CMD_FAILURE;
+			}
+		}
+	}
+	if (((!ServerInstance->IsNick(parameters[0]))) && (IS_LOCAL(user)))
+	{
+		if (!allowinvalid)
+		{
+			user->WriteServ("432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
+			return CMD_FAILURE;
+		}
+	}
+
+	int MOD_RESULT = 0;
+	FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(user,parameters[0]));
+	if (MOD_RESULT)
+		// if a module returns true, the nick change is silently forbidden.
+		return CMD_FAILURE;
+
+	if (user->registered == REG_ALL)
+		user->WriteCommon("NICK %s",parameters[0]);
+
+	strlcpy(oldnick, user->nick, NICKMAX - 1);
+
+	/* change the nick of the user in the users_hash */
+	user = user->UpdateNickHash(parameters[0]);
+
+	/* actually change the nick within the record */
+	if (!user)
+		return CMD_FAILURE;
+	if (!*user->nick)
+		return CMD_FAILURE;
+
+	strlcpy(user->nick, parameters[0], NICKMAX - 1);
+
+	user->InvalidateCache();
+
+	/* Update display nicks */
+	for (UCListIter v = user->chans.begin(); v != user->chans.end(); v++)
+	{
+		CUList* ulist = v->first->GetUsers();
+		CUList::iterator i = ulist->find(user);
+		if (i != ulist->end())
+			i->second = user->nick;
+	}
+
+	if (user->registered < REG_NICKUSER)
+	{
+		user->registered = (user->registered | REG_NICK);
+	}
+	else if (user->registered == REG_NICKUSER)
+	{
+		/* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
+		int MOD_RESULT = 0;
+		FOREACH_RESULT(I_OnUserRegister,OnUserRegister(user));
+		if (MOD_RESULT > 0)
+			return CMD_FAILURE;
+	}
+	else if (user->registered == REG_ALL)
+	{
+		FOREACH_MOD(I_OnUserPostNick,OnUserPostNick(user,oldnick));
+	}
+
+	return CMD_SUCCESS;
+
+}
+
+CmdResult CommandNick::HandleInternal(const unsigned int id, const std::deque<classbase*> &parameters)
+{
+	allowinvalid = (id != 0);
+	return CMD_SUCCESS;
+}
+