X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_safelist.cpp;h=0d5334da40c1b336172ef376b63965d3447a63f7;hb=2df56b811b362dbf5a05a0bc7b0eee5ee4d77a40;hp=3a5d09c36045ee43de09dbb8de9ef1f7beb5ce97;hpb=ad9c7a10faaa190f40daa2516286813c5784a841;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_safelist.cpp b/src/modules/m_safelist.cpp index 3a5d09c36..0d5334da4 100644 --- a/src/modules/m_safelist.cpp +++ b/src/modules/m_safelist.cpp @@ -2,27 +2,19 @@ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * - * - * Written by Craig Edwards, Craig McLure, and others. + * InspIRCd: (C) 2002-2008 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. + * the file COPYING for details. * * --------------------------------------------------- */ -using namespace std; - -#include "users.h" -#include "channels.h" -#include "modules.h" -#include "configreader.h" #include "inspircd.h" -#include "wildcard.h" +/** Holds a users m_safelist state + */ class ListData : public classbase { public: @@ -30,227 +22,227 @@ class ListData : public classbase long list_position; bool list_ended; const std::string glob; + int minusers; + int maxusers; ListData() : list_start(0), list_position(0), list_ended(false) {}; - ListData(long pos, time_t t, const std::string &pattern) : list_start(t), list_position(pos), list_ended(false), glob(pattern) {}; + ListData(long pos, time_t t, const std::string &pattern, int mi, int ma) : list_start(t), list_position(pos), list_ended(false), glob(pattern), minusers(mi), maxusers(ma) {}; }; /* $ModDesc: A module overriding /list, and making it safe - stop those sendq problems. */ - -typedef std::vector UserList; -UserList listusers; /* vector of people doing a /list */ - -/* - * To create a timer which recurs every second, we inherit from InspTimer. - * InspTimer is only one-shot however, so at the end of each Tick() we simply - * insert another of ourselves into the pending queue :) - */ -class ListTimer : public InspTimer -{ - private: - - char buffer[MAXBUF]; - chanrec *chan; - InspIRCd* ServerInstance; - const std::string glob; - - public: - - ListTimer(InspIRCd* Instance, long interval) : InspTimer(interval,Instance->Time()), ServerInstance(Instance) - { - } - - virtual void Tick(time_t TIME) - { - bool go_again = true; - - while (go_again) - { - go_again = false; - for (UserList::iterator iter = listusers.begin(); iter != listusers.end(); iter++) - { - /* - * What we do here: - * - Get where they are up to - * - If it's more than total number of channels, erase - * them from the iterator, set go_again to true - * - If not, spool more channels - */ - userrec* u = (userrec*)(*iter); - ListData* ld; - u->GetExt("safelist_cache", ld); - if ((size_t)ld->list_position > ServerInstance->chanlist.size()) - { - u->Shrink("safelist_cache"); - DELETE(ld); - listusers.erase(iter); - go_again = true; - break; - } - - ServerInstance->Log(DEBUG, "m_safelist.so: resuming spool of list to client %s at channel %ld", u->nick, ld->list_position); - chan = NULL; - /* Attempt to fill up to half the user's sendq with /LIST output */ - long amount_sent = 0; - do - { - ServerInstance->Log(DEBUG,"Channel %ld",ld->list_position); - if (!ld->list_position) - u->WriteServ("321 %s Channel :Users Name",u->nick); - chan = ServerInstance->GetChannelIndex(ld->list_position); - /* spool details */ - bool has_user = (chan && chan->HasUser(u)); - if ((chan) && (((!(chan->modes[CM_PRIVATE])) && (!(chan->modes[CM_SECRET]))) || (has_user))) - { - if (!match(chan->name, ld->glob.c_str())) - continue; - - long users = chan->GetUserCounter(); - if (users) - { - int counter = snprintf(buffer,MAXBUF,"322 %s %s %ld :[+%s] %s",u->nick,chan->name,users,chan->ChanModes(has_user),chan->topic); - /* Increment total plus linefeed */ - amount_sent += counter + 4 + strlen(ServerInstance->Config->ServerName); - ServerInstance->Log(DEBUG,"m_safelist.so: Sent %ld of safe %ld / 4",amount_sent,u->sendqmax); - u->WriteServ(std::string(buffer)); - } - } - else - { - if (!chan) - { - if (!ld->list_ended) - { - ld->list_ended = true; - u->WriteServ("323 %s :End of channel list.",u->nick); - } - } - } - - ld->list_position++; - } - while ((chan != NULL) && (amount_sent < (u->sendqmax / 4))); - } - } - - ListTimer* MyTimer = new ListTimer(ServerInstance,1); - ServerInstance->Timers->AddTimer(MyTimer); - } -}; class ModuleSafeList : public Module { - private: - - ListTimer* MyTimer; + time_t ThrottleSecs; + size_t ServerNameSize; + int global_listing; + int LimitList; public: - ModuleSafeList(InspIRCd* Me) : Module::Module(Me) + ModuleSafeList(InspIRCd* Me) : Module(Me) { - MyTimer = new ListTimer(ServerInstance,1); - ServerInstance->Timers->AddTimer(MyTimer); + OnRehash(NULL, ""); + Implementation eventlist[] = { I_OnBufferFlushed, I_OnPreCommand, I_OnCleanup, I_OnUserQuit, I_On005Numeric, I_OnRehash }; + ServerInstance->Modules->Attach(eventlist, this, 6); } - + virtual ~ModuleSafeList() { } - - virtual Version GetVersion() + + virtual void OnRehash(User* user, const std::string ¶meter) { - return Version(1,0,0,0,VF_VENDOR); + ConfigReader MyConf(ServerInstance); + ThrottleSecs = MyConf.ReadInteger("safelist", "throttle", "60", 0, true); + LimitList = MyConf.ReadInteger("safelist", "maxlisters", "50", 0, true); + ServerNameSize = strlen(ServerInstance->Config->ServerName) + 4; + global_listing = 0; } - - void Implements(char* List) + + virtual Version GetVersion() { - List[I_OnPreCommand] = List[I_OnCleanup] = List[I_OnUserQuit] = List[I_On005Numeric] = 1; + return Version("$Id$",VF_VENDOR,API_VERSION); } + /* * OnPreCommand() * Intercept the LIST command. - */ - virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated) + */ + virtual int OnPreCommand(std::string &command, std::vector ¶meters, User *user, bool validated, const std::string &original_line) { /* If the command doesnt appear to be valid, we dont want to mess with it. */ if (!validated) return 0; - + if (command == "LIST") { - return this->HandleList(parameters, pcnt, user); + return this->HandleList(parameters, user); } return 0; } - + /* * HandleList() * Handle (override) the LIST command. */ - int HandleList(const char** parameters, int pcnt, userrec* user) + int HandleList(const std::vector ¶meters, User* user) { + int pcnt = parameters.size(); + int minusers = 0, maxusers = 0; + + if (global_listing >= LimitList && !IS_OPER(user)) + { + user->WriteServ("NOTICE %s :*** Server load is currently too heavy. Please try again later.", user->nick.c_str()); + user->WriteNumeric(321, "%s Channel :Users Name",user->nick.c_str()); + user->WriteNumeric(323, "%s :End of channel list.",user->nick.c_str()); + return 1; + } + /* First, let's check if the user is currently /list'ing */ ListData *ld; user->GetExt("safelist_cache", ld); - + if (ld) { /* user is already /list'ing, we don't want to do shit. */ return 1; } + /* Work around mIRC suckyness. YOU SUCK, KHALED! */ + if (pcnt == 1) + { + if (parameters[0][0] == '<') + { + maxusers = atoi(parameters[0].c_str()+1); + ServerInstance->Logs->Log("m_safelist",DEBUG,"Max users: %d", maxusers); + pcnt = 0; + } + else if (parameters[0][0] == '>') + { + minusers = atoi(parameters[0].c_str()+1); + ServerInstance->Logs->Log("m_safelist",DEBUG,"Min users: %d", minusers); + pcnt = 0; + } + } + time_t* last_list_time; user->GetExt("safelist_last", last_list_time); if (last_list_time) { - if (ServerInstance->Time() < (*last_list_time)+60) + if (ServerInstance->Time() < (*last_list_time)+ThrottleSecs) { - user->WriteServ("NOTICE %s :*** Woah there, slow down a little, you can't /LIST so often!",user->nick); + user->WriteServ("NOTICE %s :*** Woah there, slow down a little, you can't /LIST so often!",user->nick.c_str()); + user->WriteNumeric(321, "%s Channel :Users Name",user->nick.c_str()); + user->WriteNumeric(323, "%s :End of channel list.",user->nick.c_str()); return 1; } - DELETE(last_list_time); + delete last_list_time; user->Shrink("safelist_last"); } - + + /* * start at channel 0! ;) */ - ld = new ListData(0,ServerInstance->Time(), pcnt ? parameters[0] : "*"); + ld = new ListData(0,ServerInstance->Time(), pcnt ? parameters[0] : "*", minusers, maxusers); user->Extend("safelist_cache", ld); - listusers.push_back(user); time_t* llt = new time_t; *llt = ServerInstance->Time(); user->Extend("safelist_last", llt); - + + user->WriteNumeric(321, "%s Channel :Users Name",user->nick.c_str()); + + global_listing++; + return 1; } + virtual void OnBufferFlushed(User* user) + { + char buffer[MAXBUF]; + ListData* ld; + if (user->GetExt("safelist_cache", ld)) + { + Channel* chan = NULL; + unsigned long amount_sent = 0; + do + { + chan = ServerInstance->GetChannelIndex(ld->list_position); + bool has_user = (chan && chan->HasUser(user)); + long users = chan ? chan->GetUserCounter() : 0; + + bool too_few = (ld->minusers && (users <= ld->minusers)); + bool too_many = (ld->maxusers && (users >= ld->maxusers)); + + if (chan && (too_many || too_few)) + { + ld->list_position++; + continue; + } + + if ((chan) && (chan->modes[CM_PRIVATE]) && (!IS_OPER(user))) + { + bool display = (InspIRCd::Match(chan->name, ld->glob) || (!chan->topic.empty() && InspIRCd::Match(chan->topic, ld->glob))); + if ((users) && (display)) + { + int counter = snprintf(buffer, MAXBUF, "322 %s * %ld :", user->nick.c_str(), users); + amount_sent += counter + ServerNameSize; + user->WriteServ(std::string(buffer)); + } + } + else if ((chan) && ((((!(chan->IsModeSet('p'))) && (!(chan->IsModeSet('s'))))) || (has_user) || IS_OPER(user))) + { + bool display = (InspIRCd::Match(chan->name, ld->glob) || (!chan->topic.empty() && InspIRCd::Match(chan->topic, ld->glob))); + if ((users) && (display)) + { + int counter = snprintf(buffer, MAXBUF, "322 %s %s %ld :[+%s] %s", user->nick.c_str(), chan->name.c_str(), users, chan->ChanModes(has_user || IS_OPER(user)), chan->topic.c_str()); + amount_sent += counter + ServerNameSize; + user->WriteServ(std::string(buffer)); + } + } + else + { + if (!chan) + { + if (!ld->list_ended) + { + ld->list_ended = true; + user->WriteNumeric(323, "%s :End of channel list.",user->nick.c_str()); + } + } + } + ld->list_position++; + } + while ((chan != NULL) && (amount_sent < (user->MyClass->GetSendqMax() / 4))); + if (ld->list_ended) + { + user->Shrink("safelist_cache"); + delete ld; + global_listing--; + } + } + } + virtual void OnCleanup(int target_type, void* item) { if(target_type == TYPE_USER) { - userrec* u = (userrec*)item; + User* u = (User*)item; ListData* ld; u->GetExt("safelist_cache", ld); if (ld) { u->Shrink("safelist_cache"); - DELETE(ld); - } - for (UserList::iterator iter = listusers.begin(); iter != listusers.end(); iter++) - { - userrec* u2 = (userrec*)(*iter); - if (u2 == u) - { - listusers.erase(iter); - break; - } + delete ld; + global_listing--; } time_t* last_list_time; u->GetExt("safelist_last", last_list_time); if (last_list_time) { - DELETE(last_list_time); + delete last_list_time; u->Shrink("safelist_last"); } } @@ -261,33 +253,11 @@ class ModuleSafeList : public Module output.append(" SAFELIST"); } - virtual void OnUserQuit(userrec* user, const std::string &message) + virtual void OnUserQuit(User* user, const std::string &message, const std::string &oper_message) { this->OnCleanup(TYPE_USER,user); } }; - -class ModuleSafeListFactory : public ModuleFactory -{ - public: - ModuleSafeListFactory() - { - } - - ~ModuleSafeListFactory() - { - } - - virtual Module * CreateModule(InspIRCd* Me) - { - return new ModuleSafeList(Me); - } - -}; - -extern "C" void * init_module( void ) -{ - return new ModuleSafeListFactory; -} +MODULE_INIT(ModuleSafeList)