X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_safelist.cpp;h=b04701f5d9339c1a26f40b7aa7474fa37eb97955;hb=e4acbc95b8b6cd5b28d38a2242c02e8ff4991e4a;hp=148040c6c7e920d390800765367208b93f5d8fd5;hpb=0757a4a495daabf661ac3b7ab79f0a5ee423abe8;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_safelist.cpp b/src/modules/m_safelist.cpp index 148040c6c..b04701f5d 100644 --- a/src/modules/m_safelist.cpp +++ b/src/modules/m_safelist.cpp @@ -2,171 +2,74 @@ * | 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 "helperfuncs.h" -#include "message.h" -#include - -extern time_t TIME; +#include "inspircd.h" +#include "wildcard.h" +/** Holds a users m_safelist state + */ class ListData : public classbase { public: long list_start; 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) : list_start(t), list_position(pos), list_ended(false) {}; + 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: - - Server* Srv; - char buffer[MAXBUF]; - chanrec *chan; - - public: - - ListTimer(long interval, Server* Me) : InspTimer(interval,TIME), Srv(Me) - { - } - - 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 > GetChannelCount, 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 (ld->list_position > Srv->GetChannelCount()) - { - u->Shrink("safelist_cache"); - DELETE(ld); - listusers.erase(iter); - go_again = true; - break; - } - - 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 - { - log(DEBUG,"Channel %ld",ld->list_position); - if (!ld->list_position) - WriteServ(u->fd,"321 %s Channel :Users Name",u->nick); - chan = Srv->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))) - { - long users = usercount(chan); - if (users) - { - int counter = snprintf(buffer,MAXBUF,"322 %s %s %ld :[+%s] %s",u->nick,chan->name,users,chanmodes(chan,has_user),chan->topic); - /* Increment total plus linefeed */ - amount_sent += counter + 4 + Srv->GetServerName().length(); - log(DEBUG,"m_safelist.so: Sent %ld of safe %ld / 4",amount_sent,u->sendqmax); - WriteServ_NoFormat(u->fd,buffer); - } - } - else - { - if (!chan) - { - if (!ld->list_ended) - { - ld->list_ended = true; - WriteServ(u->fd,"323 %s :End of channel list.",u->nick); - } - } - } - - ld->list_position++; - } - while ((chan != NULL) && (amount_sent < (u->sendqmax / 4))); - } - } - - ListTimer* MyTimer = new ListTimer(1,Srv); - Srv->AddTimer(MyTimer); - } -}; class ModuleSafeList : public Module { - private: - Server *Srv; - ListTimer* MyTimer; + time_t ThrottleSecs; + size_t ServerNameSize; + int global_listing; + int LimitList; public: - ModuleSafeList(Server* Me) : Module::Module(Me) + ModuleSafeList(InspIRCd* Me) : Module(Me) { - Srv = Me; - - MyTimer = new ListTimer(1,Srv); - Srv->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(1,1,0,0,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(const std::string &command, const char** parameters, int pcnt, 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) @@ -183,8 +86,18 @@ class ModuleSafeList : public Module * HandleList() * Handle (override) the LIST command. */ - int HandleList(const char** parameters, int pcnt, userrec* user) + int HandleList(const char** parameters, int pcnt, User* user) { + 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); + user->WriteServ("321 %s Channel :Users Name",user->nick); + user->WriteServ("323 %s :End of channel list.",user->nick); + return 1; + } + /* First, let's check if the user is currently /list'ing */ ListData *ld; user->GetExt("safelist_cache", ld); @@ -195,60 +108,141 @@ class ModuleSafeList : public Module return 1; } + /* Work around mIRC suckyness. YOU SUCK, KHALED! */ + if (pcnt == 1) + { + if (*parameters[0] == '<') + { + maxusers = atoi(parameters[0]+1); + ServerInstance->Log(DEBUG,"Max users: %d", maxusers); + pcnt = 0; + } + else if (*parameters[0] == '>') + { + minusers = atoi(parameters[0]+1); + ServerInstance->Log(DEBUG,"Min users: %d", minusers); + pcnt = 0; + } + } + time_t* last_list_time; user->GetExt("safelist_last", last_list_time); if (last_list_time) { - if (TIME < (*last_list_time)+60) + if (ServerInstance->Time() < (*last_list_time)+ThrottleSecs) { - WriteServ(user->fd,"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); + user->WriteServ("321 %s Channel :Users Name",user->nick); + user->WriteServ("323 %s :End of channel list.",user->nick); return 1; } - DELETE(last_list_time); + delete last_list_time; user->Shrink("safelist_last"); } + /* * start at channel 0! ;) */ - ld = new ListData(0,TIME); + 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 = TIME; + *llt = ServerInstance->Time(); user->Extend("safelist_last", llt); - + + user->WriteServ("321 %s Channel :Users Name",user->nick); + + 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])) + { + bool display = (match(chan->name, ld->glob.c_str()) || (*chan->topic && match(chan->topic, ld->glob.c_str()))); + if ((users) && (display)) + { + int counter = snprintf(buffer, MAXBUF, "322 %s *", user->nick); + amount_sent += counter + ServerNameSize; + user->WriteServ(std::string(buffer)); + } + } + else if ((chan) && (((!(chan->modes[CM_PRIVATE])) && (!(chan->modes[CM_SECRET]))) || (has_user))) + { + bool display = (match(chan->name, ld->glob.c_str()) || (*chan->topic && match(chan->topic, ld->glob.c_str()))); + if ((users) && (display)) + { + int counter = snprintf(buffer, MAXBUF, "322 %s %s %ld :[+%s] %s",user->nick, chan->name, users, chan->ChanModes(has_user), chan->topic); + amount_sent += counter + ServerNameSize; + user->WriteServ(std::string(buffer)); + } + } + else + { + if (!chan) + { + if (!ld->list_ended) + { + ld->list_ended = true; + user->WriteServ("323 %s :End of channel list.",user->nick); + } + } + } + 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"); } } @@ -259,36 +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(Server* Me) - { - return new ModuleSafeList(Me); - } - -}; - -extern "C" void * init_module( void ) -{ - return new ModuleSafeListFactory; -} + +MODULE_INIT(ModuleSafeList)