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-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *               <Craig@chatspike.net>
- *     
- * Written by Craig Edwards, Craig McLure, and others.
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ *   Copyright (C) 2017 B00mX0r <b00mx0r@aureus.pw>
+ *   Copyright (C) 2013, 2018-2020 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2012-2016 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2006, 2010 Craig Edwards <brain@inspircd.org>
  *
- * ---------------------------------------------------
+ * 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/>.
  */
 
-using namespace std;
-
-/* $ModDesc: Provides the UNINVITE command which lets users un-invite other users from channels (!) */
 
-#include <stdio.h>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include "helperfuncs.h"
-#include "message.h"
+#include "inspircd.h"
+#include "modules/invite.h"
 
-static Server *Srv;
-        
-class cmd_uninvite : public command_t
+enum
 {
- public:
-       cmd_uninvite () : command_t("UNINVITE", 0, 2)
-       {
-               this->source = "m_uninvite.so";
-       }
-
-       void Handle (char **parameters, int pcnt, userrec *user)
-       {
-                userrec* u = Find(parameters[0]);
-                chanrec* c = FindChan(parameters[1]);
-                         
-                if ((!c) || (!u))
-                {        
-                        if (!c)
-                        {
-                                WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
-                        }
-                        else
-                        {
-                                WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
-                        }
-                                
-                        return; 
-                }        
-
-                if (c->modes[CM_INVITEONLY])
-                {
-                        if (cstatus(user,c) < STATUS_HOP)
-                        {
-                                WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
-                                return;
-                        }
-                }
-
-               irc::string xname(c->name);
-
-                if (!u->IsInvited(xname))
-                {
-                        WriteServ(user->fd,"491 %s %s %s :Is not invited to channel %s",user->nick,u->nick,c->name,c->name);
-                        return;
-                }
-                if (!c->HasUser(user))
-                {
-                        WriteServ(user->fd,"492 %s %s :You're not on that channel!",user->nick, c->name);
-                        return;
-                }
-
-                u->RemoveInvite(xname);
-                WriteServ(user->fd,"494 %s %s %s :Uninvited",user->nick,c->name,u->nick);
-               WriteServ(u->fd,"493 %s :You were uninvited from %s by %s",u->nick,c->name,user->nick);
-                WriteChannel(c,user,"NOTICE %s :*** %s uninvited %s.",c->name,user->nick,u->nick);
-        }
+       // InspIRCd-specific.
+       ERR_INVITEREMOVED = 494,
+       ERR_NOTINVITED = 505,
+       RPL_UNINVITED = 653
 };
 
-class ModuleUninvite : public Module
+/** Handle /UNINVITE
+ */
+class CommandUninvite : public Command
 {
-       cmd_uninvite *mycommand;
-
+       Invite::API invapi;
  public:
-
-       ModuleUninvite(Server* Me) : Module::Module(Me)
+       CommandUninvite(Module* Creator)
+               : Command(Creator, "UNINVITE", 2)
+               , invapi(Creator)
        {
-               Srv = Me;
-               mycommand = new cmd_uninvite();
-               Srv->AddCommand(mycommand);
+               syntax = "<nick> <channel>";
+               TRANSLATE2(TR_NICK, TR_TEXT);
        }
-       
-       virtual ~ModuleUninvite()
+
+       CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
        {
+               User* u;
+               if (IS_LOCAL(user))
+                       u = ServerInstance->FindNickOnly(parameters[0]);
+               else
+                       u = ServerInstance->FindNick(parameters[0]);
+
+               Channel* c = ServerInstance->FindChan(parameters[1]);
+
+               if ((!c) || (!u) || (u->registered != REG_ALL))
+               {
+                       if (!c)
+                       {
+                               user->WriteNumeric(Numerics::NoSuchChannel(parameters[1]));
+                       }
+                       else
+                       {
+                               user->WriteNumeric(Numerics::NoSuchNick(parameters[0]));
+                       }
+
+                       return CMD_FAILURE;
+               }
+
+               if (IS_LOCAL(user))
+               {
+                       if (c->GetPrefixValue(user) < HALFOP_VALUE)
+                       {
+                               user->WriteNumeric(ERR_CHANOPRIVSNEEDED, c->name, InspIRCd::Format("You must be a channel %soperator", c->GetPrefixValue(u) == HALFOP_VALUE ? "" : "half-"));
+                               return CMD_FAILURE;
+                       }
+               }
+
+               /* Servers remember invites only for their local users, so act
+                * only if the target is local. Otherwise the command will be
+                * passed to the target users server.
+                */
+               LocalUser* lu = IS_LOCAL(u);
+               if (lu)
+               {
+                       // XXX: The source of the numeric we send must be the server of the user doing the /UNINVITE,
+                       // so they don't see where the target user is connected to
+                       if (!invapi->Remove(lu, c))
+                       {
+                               Numeric::Numeric n(ERR_NOTINVITED);
+                               n.SetServer(user->server);
+                               n.push(u->nick).push(c->name).push(InspIRCd::Format("Is not invited to channel %s", c->name.c_str()));
+                               user->WriteRemoteNumeric(n);
+                               return CMD_FAILURE;
+                       }
+
+                       Numeric::Numeric n(ERR_INVITEREMOVED);
+                       n.SetServer(user->server);
+                       n.push(c->name).push(u->nick).push("Uninvited");
+                       user->WriteRemoteNumeric(n);
+
+                       lu->WriteNumeric(RPL_UNINVITED, InspIRCd::Format("You were uninvited from %s by %s", c->name.c_str(), user->nick.c_str()));
+                       c->WriteRemoteNotice(InspIRCd::Format("*** %s uninvited %s.", user->nick.c_str(), u->nick.c_str()));
+               }
+
+               return CMD_SUCCESS;
        }
-       
-       virtual Version GetVersion()
+
+       RouteDescriptor GetRouting(User* user, const Params& parameters) CXX11_OVERRIDE
        {
-               /* Must be static, because we dont want to desync invite lists */
-               return Version(1, 0, 0, 0, VF_VENDOR|VF_STATIC);
+               return ROUTE_OPT_UCAST(parameters[0]);
        }
 };
 
-
-class ModuleUninviteFactory : public ModuleFactory
+class ModuleUninvite : public Module
 {
+       CommandUninvite cmd;
+
  public:
-       ModuleUninviteFactory()
-       {
-       }
-       
-       ~ModuleUninviteFactory()
+
+       ModuleUninvite() : cmd(this)
        {
        }
-       
-       virtual Module * CreateModule(Server* Me)
+
+       Version GetVersion() CXX11_OVERRIDE
        {
-               return new ModuleUninvite(Me);
+               return Version("Adds the /UNINVITE command which allows users who have invited another user to a channel to withdraw their invite.", VF_VENDOR | VF_OPTCOMMON);
        }
-       
 };
 
-
-extern "C" void * init_module( void )
-{
-       return new ModuleUninviteFactory;
-}
+MODULE_INIT(ModuleUninvite)