]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_remove.cpp
...because every now and again, i have to do a massive commit.
[user/henk/code/inspircd.git] / src / modules / m_remove.cpp
index 0c9a29a1d151834b80ced4fbb99888fd52c3d864..2394332beac18fa27ea5fd650faefd141bc86076 100644 (file)
-/* Support for a dancer-style /remove command, an alternative to /kick to try and avoid auto-rejoin-on-kick scripts */
-/* Written by Om, 25-03-05 */
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
+ *
+ * This program is free but copyrighted software; see
+ *            the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
 
-#include <stdio.h>
-#include <string>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
+#include "inspircd.h"
 
 /* $ModDesc: Provides a /remove command, this is mostly an alternative to /kick, except makes users appear to have parted the channel */
 
-/*     
+/*
  * This module supports the use of the +q and +a usermodes, but should work without them too.
  * Usage of the command is restricted to +hoaq, and you cannot remove a user with a "higher" level than yourself.
  * eg: +h can remove +hv and users with no modes. +a can remove +aohv and users with no modes.
 */
 
-Server *Srv;
-
-/* This little function just converts a chanmode character (~ & @ & +) into an integer (5 4 3 2 1) */
-int chartolevel(std::string privs)
-{
-       int level;
-       if(privs == "~")
-               level = 5;
-       else
-       if(privs == "&")
-               level = 4;
-       else
-       if(privs == "@")
-               level = 3;
-       else
-       if(privs == "%") {
-               level = 2;
-       } else {
-               level = 1;
-       }
-       return level;
-}
-        
-void handle_remove(char **parameters, int pcnt, userrec *user)
+/** Base class for /FPART and /REMOVE
+ */
+class RemoveBase : public Command
 {
-       /* Look up the user we're meant to be removing from the channel */
-       userrec* target = Srv->FindNick(std::string(parameters[0]));
-       /* And the channel we're meant to be removing them from */
-       chanrec* channel = Srv->FindChannel(std::string(parameters[1]));
-       /* And see if the person calling the command has access to use it on the channel */
-       std::string privs = Srv->ChanMode(user, channel);
-       /* Check what privs the person being removed has */
-       std::string targetprivs = Srv->ChanMode(target, channel);
-       int tlevel;
-       int ulevel;
-       int n = 2;
-       std::string result;
-       
-       /* This turns all the parameters after the first two into a single string, so the part reason can be multi-word */
-       while (n < pcnt)
+ private:
+       bool& supportnokicks;
+
+ public:
+       RemoveBase(Module* Creator, bool& snk, const char* cmdn)
+               : Command(Creator, cmdn, 2, 3), supportnokicks(snk)
        {
-               result=result + std::string(" ") + std::string(parameters[n]);
-               n++;
        }
-       
-       /* If the target nick exists... */
-       if (target && channel)
+
+       CmdResult HandleRMB(const std::vector<std::string>& parameters, User *user, bool neworder)
        {
-               for (int x = 0; x < strlen(parameters[1]); x++)
+               const char* channame;
+               const char* username;
+               User* target;
+               Channel* channel;
+               std::string reason;
+               std::string protectkey;
+               std::string founderkey;
+               bool hasnokicks;
+
+               /* Set these to the parameters needed, the new version of this module switches it's parameters around
+                * supplying a new command with the new order while keeping the old /remove with the older order.
+                * /remove <nick> <channel> [reason ...]
+                * /fpart <channel> <nick> [reason ...]
+                */
+               channame = parameters[ neworder ? 0 : 1].c_str();
+               username = parameters[ neworder ? 1 : 0].c_str();
+
+               /* Look up the user we're meant to be removing from the channel */
+               target = ServerInstance->FindNick(username);
+
+               /* And the channel we're meant to be removing them from */
+               channel = ServerInstance->FindChan(channame);
+
+               /* Fix by brain - someone needs to learn to validate their input! */
+               if (!target || !channel)
                {
-                               if ((parameters[1][0] != '#') || (parameters[1][x] == ' ') || (parameters[1][x] == ','))
-                               {
-                                       Srv->SendTo(NULL,user,"NOTICE "+std::string(user->nick)+" :*** Invalid characters in channel name");
-                                       return;
-                               }
+                       user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel", user->nick.c_str(), !target ? username : channame);
+                       return CMD_FAILURE;
                }
-               
-               /* This is adding support for the +q and +a channel modes, basically if they are enabled, and the remover has them set. */
-               /* Then we change the @|%|+ to & if they are +a, or ~ if they are +q */
-               if (user->GetExt("cm_protect_"+std::string(channel->name)))
-                       privs = std::string("&");
-               if (user->GetExt("cm_founder_"+std::string(channel->name)))
-                       privs = std::string("~");
-                       
-               /* Now it's the same idea, except for the target */
-               if (target->GetExt("cm_protect_"+std::string(channel->name)))
-                       targetprivs = std::string("&");
-               if (target->GetExt("cm_founder_"+std::string(channel->name)))
-                       targetprivs = std::string("~");
-                       
-               tlevel = chartolevel(targetprivs);
-               ulevel = chartolevel(privs);
-               
-               /* If the user calling the command is either an admin, owner, operator or a half-operator on the channel */
-               if(ulevel > 1)
+
+               if (!channel->HasUser(target))
+               {
+                       user->WriteServ( "NOTICE %s :*** The user %s is not on channel %s", user->nick.c_str(), target->nick.c_str(), channel->name.c_str());
+                       return CMD_FAILURE;
+               }
+
+               int ulevel = channel->GetPrefixValue(user);
+               int tlevel = channel->GetPrefixValue(target);
+
+               hasnokicks = (ServerInstance->Modules->Find("m_nokicks.so") && channel->IsModeSet('Q'));
+
+               /* We support the +Q channel mode via. the m_nokicks module, if the module is loaded and the mode is set then disallow the /remove */
+               if ((!IS_LOCAL(user)) || (!supportnokicks || !hasnokicks))
                {
-                       /* For now, we'll let everyone remove their level and below, eg ops can remove ops, halfops, voices, and those with no mode (no moders actually are set to 1) */
-                       if(ulevel >= tlevel)
+                       /* We'll let everyone remove their level and below, eg:
+                        * ops can remove ops, halfops, voices, and those with no mode (no moders actually are set to 1)
+                        * a ulined target will get a higher level than it's possible for a /remover to get..so they're safe.
+                        * Nobody may remove a founder.
+                        */
+                       if ((!IS_LOCAL(user)) || ((ulevel > VOICE_VALUE) && (ulevel >= tlevel) && (tlevel != 50000)))
+                       {
+                               // no you can't just go from a std::ostringstream to a std::string, Om. -nenolod
+                               // but you can do this, nenolod -brain
+
+                               std::string reasonparam("No reason given");
+
+                               /* If a reason is given, use it */
+                               if(parameters.size() > 2)
+                               {
+                                       /* Join params 2 ... pcnt - 1 (inclusive) into one */
+                                       irc::stringjoiner reason_join(" ", parameters, 2, parameters.size() - 1);
+                                       reasonparam = reason_join.GetJoined();
+                               }
+
+                               /* Build up the part reason string. */
+                               reason = std::string("Removed by ") + user->nick + ": " + reasonparam;
+
+                               channel->WriteChannelWithServ(ServerInstance->Config->ServerName.c_str(), "NOTICE %s :%s removed %s from the channel", channel->name.c_str(), user->nick.c_str(), target->nick.c_str());
+                               target->WriteServ("NOTICE %s :*** %s removed you from %s with the message: %s", target->nick.c_str(), user->nick.c_str(), channel->name.c_str(), reasonparam.c_str());
+
+                               channel->PartUser(target, reason);
+                       }
+                       else
                        {
-                               Srv->PartUserFromChannel(target,std::string(parameters[1]), "Remove by "+std::string(user->nick)+":"+result);
-                               Srv->SendTo(NULL,user,"NOTICE "+std::string(channel->name)+" : "+std::string(user->nick)+" removed "+std::string(target->nick)+ " from the channel");
-                               Srv->SendTo(NULL,target,"NOTICE "+std::string(target->nick)+" :*** "+std::string(user->nick)+" removed you from "+std::string(channel->name)+" with the message:"+std::string(result));
-                       } else {
-                               Srv->SendTo(NULL,user,"NOTICE "+std::string(user->nick)+" :*** You do not have access to remove "+std::string(target->nick)+" from the "+std::string(channel->name));
+                               user->WriteServ( "NOTICE %s :*** You do not have access to /remove %s from %s", user->nick.c_str(), target->nick.c_str(), channel->name.c_str());
+                               return CMD_FAILURE;
                        }
-               } else {
-                       Srv->SendTo(NULL,user,"NOTICE "+std::string(user->nick)+" :*** You do not have access to use /remove on "+std::string(channel->name));
                }
-       }
-}
+               else
+               {
+                       /* m_nokicks.so was loaded and +Q was set, block! */
+                       user->WriteServ( "484 %s %s :Can't remove user %s from channel (+Q set)", user->nick.c_str(), channel->name.c_str(), target->nick.c_str());
+                       return CMD_FAILURE;
+               }
 
+               return CMD_SUCCESS;
+       }
+       virtual RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters) = 0;
+};
 
-class ModuleRemove : public Module
+/** Handle /REMOVE
+ */
+class CommandRemove : public RemoveBase
 {
  public:
-       ModuleRemove()
+       CommandRemove(Module* Creator, bool& snk)
+               : RemoveBase(Creator, snk, "REMOVE")
        {
-               Srv = new Server;
-               Srv->AddCommand("REMOVE", handle_remove, 0, 3, "m_remove.so");
+               syntax = "<nick> <channel> [<reason>]";
+               TRANSLATE4(TR_NICK, TR_TEXT, TR_TEXT, TR_END);
        }
 
-        virtual void On005Numeric(std::string &output)
-        {
-                output = output + std::string(" REMOVE");
-        }
-       
-       virtual ~ModuleRemove()
+       CmdResult Handle (const std::vector<std::string>& parameters, User *user)
        {
-               delete Srv;
+               return HandleRMB(parameters, user, false);
        }
-       
-       virtual Version GetVersion()
+
+       RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
        {
-               return Version(1,0,0,1,VF_VENDOR);
+               User* dest = ServerInstance->FindNick(parameters[0]);
+               if (dest)
+                       return ROUTE_OPT_UCAST(dest->server);
+               return ROUTE_LOCALONLY;
        }
-       
 };
 
-// stuff down here is the module-factory stuff. For basic modules you can ignore this.
-
-class ModuleRemoveFactory : public ModuleFactory
+/** Handle /FPART
+ */
+class CommandFpart : public RemoveBase
 {
  public:
-       ModuleRemoveFactory()
+       CommandFpart(Module* Creator, bool& snk)
+               : RemoveBase(Creator, snk, "FPART")
        {
+               syntax = "<channel> <nick> [<reason>]";
+               TRANSLATE4(TR_TEXT, TR_NICK, TR_TEXT, TR_END);
        }
-       
-       ~ModuleRemoveFactory()
+
+       CmdResult Handle (const std::vector<std::string>& parameters, User *user)
        {
+               return HandleRMB(parameters, user, true);
        }
-       
-       virtual Module * CreateModule()
+
+       RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
        {
-               return new ModuleRemove;
+               User* dest = ServerInstance->FindNick(parameters[1]);
+               if (dest)
+                       return ROUTE_OPT_UCAST(dest->server);
+               return ROUTE_LOCALONLY;
        }
-       
 };
 
-
-extern "C" void * init_module( void )
+class ModuleRemove : public Module
 {
-       return new ModuleRemoveFactory;
-}
+       CommandRemove cmd1;
+       CommandFpart cmd2;
+       bool supportnokicks;
+
+
+ public:
+       ModuleRemove() : cmd1(this, supportnokicks), cmd2(this, supportnokicks)
+       {
+               ServerInstance->AddCommand(&cmd1);
+               ServerInstance->AddCommand(&cmd2);
+               OnRehash(NULL);
+               Implementation eventlist[] = { I_On005Numeric, I_OnRehash };
+               ServerInstance->Modules->Attach(eventlist, this, 2);
+       }
+
+
+       virtual void On005Numeric(std::string &output)
+       {
+               output.append(" REMOVE");
+       }
+
+       virtual void OnRehash(User* user)
+       {
+               ConfigReader conf;
+               supportnokicks = conf.ReadFlag("remove", "supportnokicks", 0);
+       }
+
+       virtual ~ModuleRemove()
+       {
+       }
+
+       virtual Version GetVersion()
+       {
+               return Version("Provides a /remove command, this is mostly an alternative to /kick, except makes users appear to have parted the channel", VF_OPTCOMMON | VF_VENDOR);
+       }
+
+};
 
+MODULE_INIT(ModuleRemove)