From bab14f0dd2345c9d7dcbc47c918563709e1ac094 Mon Sep 17 00:00:00 2001 From: peavey Date: Mon, 16 Jul 2007 17:14:45 +0000 Subject: 'svn propset -R svn:eol-style CR *' Set to UNIX-style always. Binaries are auto skipped by svn. git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@7454 e03df62e-2008-0410-955e-edbf42e46eb7 --- src/mode.cpp | 1067 +--------------------------------------------------------- 1 file changed, 1 insertion(+), 1066 deletions(-) (limited to 'src/mode.cpp') diff --git a/src/mode.cpp b/src/mode.cpp index db120cfe5..cfb009273 100644 --- a/src/mode.cpp +++ b/src/mode.cpp @@ -1,1066 +1 @@ -/* +------------------------------------+ - * | 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 "users.h" -#include "modules.h" -#include "inspstring.h" -#include "mode.h" - -/* +s (secret) */ -#include "modes/cmode_s.h" -/* +p (private) */ -#include "modes/cmode_p.h" -/* +b (bans) */ -#include "modes/cmode_b.h" -/* +m (moderated) */ -#include "modes/cmode_m.h" -/* +t (only (half) ops can change topic) */ -#include "modes/cmode_t.h" -/* +n (no external messages) */ -#include "modes/cmode_n.h" -/* +i (invite only) */ -#include "modes/cmode_i.h" -/* +k (keyed channel) */ -#include "modes/cmode_k.h" -/* +l (channel user limit) */ -#include "modes/cmode_l.h" -/* +o (channel op) */ -#include "modes/cmode_o.h" -/* +h (channel halfop) */ -#include "modes/cmode_h.h" -/* +v (channel voice) */ -#include "modes/cmode_v.h" -/* +s (server notices) */ -#include "modes/umode_s.h" -/* +w (see wallops) */ -#include "modes/umode_w.h" -/* +i (invisible) */ -#include "modes/umode_i.h" -/* +o (operator) */ -#include "modes/umode_o.h" -/* +n (notice mask - our implementation of snomasks) */ -#include "modes/umode_n.h" - -ModeHandler::ModeHandler(InspIRCd* Instance, char modeletter, int parameters_on, int parameters_off, bool listmode, ModeType type, bool operonly, char mprefix) - : ServerInstance(Instance), mode(modeletter), n_params_on(parameters_on), n_params_off(parameters_off), list(listmode), m_type(type), oper(operonly), prefix(mprefix), count(0) -{ -} - -ModeHandler::~ModeHandler() -{ -} - -bool ModeHandler::IsListMode() -{ - return list; -} - -unsigned int ModeHandler::GetPrefixRank() -{ - return 0; -} - -unsigned int ModeHandler::GetCount() -{ - return 0; -} - -void ModeHandler::ChangeCount(int modifier) -{ - count += modifier; -} - -ModeType ModeHandler::GetModeType() -{ - return m_type; -} - -bool ModeHandler::NeedsOper() -{ - return oper; -} - -char ModeHandler::GetPrefix() -{ - return prefix; -} - -int ModeHandler::GetNumParams(bool adding) -{ - return adding ? n_params_on : n_params_off; -} - -char ModeHandler::GetModeChar() -{ - return mode; -} - -ModeAction ModeHandler::OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding) -{ - return MODEACTION_DENY; -} - -ModePair ModeHandler::ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter) -{ - if (dest) - { - return std::make_pair(dest->IsModeSet(this->mode), ""); - } - else - { - return std::make_pair(channel->IsModeSet(this->mode), ""); - } -} - -void ModeHandler::DisplayList(userrec* user, chanrec* channel) -{ -} - -bool ModeHandler::CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel) -{ - return (ours < theirs); -} - -ModeWatcher::ModeWatcher(InspIRCd* Instance, char modeletter, ModeType type) : ServerInstance(Instance), mode(modeletter), m_type(type) -{ -} - -ModeWatcher::~ModeWatcher() -{ -} - -char ModeWatcher::GetModeChar() -{ - return mode; -} - -ModeType ModeWatcher::GetModeType() -{ - return m_type; -} - -bool ModeWatcher::BeforeMode(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding, ModeType type) -{ - return true; -} - -void ModeWatcher::AfterMode(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter, bool adding, ModeType type) -{ -} - -userrec* ModeParser::SanityChecks(userrec *user,const char *dest,chanrec *chan,int status) -{ - userrec *d; - if ((!user) || (!dest) || (!chan) || (!*dest)) - { - return NULL; - } - d = ServerInstance->FindNick(dest); - if (!d) - { - user->WriteServ("401 %s %s :No such nick/channel",user->nick, dest); - return NULL; - } - return d; -} - -const char* ModeParser::Grant(userrec *d,chanrec *chan,int MASK) -{ - if (!chan) - return ""; - - UCListIter n = d->chans.find(chan); - if (n != d->chans.end()) - { - if (n->second & MASK) - { - return ""; - } - n->second = n->second | MASK; - switch (MASK) - { - case UCMODE_OP: - n->first->AddOppedUser(d); - break; - case UCMODE_HOP: - n->first->AddHalfoppedUser(d); - break; - case UCMODE_VOICE: - n->first->AddVoicedUser(d); - break; - } - return d->nick; - } - return ""; -} - -const char* ModeParser::Revoke(userrec *d,chanrec *chan,int MASK) -{ - if (!chan) - return ""; - - UCListIter n = d->chans.find(chan); - if (n != d->chans.end()) - { - if ((n->second & MASK) == 0) - { - return ""; - } - n->second ^= MASK; - switch (MASK) - { - case UCMODE_OP: - n->first->DelOppedUser(d); - break; - case UCMODE_HOP: - n->first->DelHalfoppedUser(d); - break; - case UCMODE_VOICE: - n->first->DelVoicedUser(d); - break; - } - return d->nick; - } - return ""; -} - -void ModeParser::DisplayCurrentModes(userrec *user, userrec* targetuser, chanrec* targetchannel, const char* text) -{ - if (targetchannel) - { - /* Display channel's current mode string */ - user->WriteServ("324 %s %s +%s",user->nick, targetchannel->name, targetchannel->ChanModes(targetchannel->HasUser(user))); - user->WriteServ("329 %s %s %lu", user->nick, targetchannel->name, (unsigned long)targetchannel->age); - return; - } - else if (targetuser) - { - if (targetuser->Visibility && !targetuser->Visibility->VisibleTo(user)) - { - user->WriteServ("401 %s %s :No such nick/channel",user->nick, text); - return; - } - - if ((targetuser == user) || (IS_OPER(user))) - { - /* Display user's current mode string */ - user->WriteServ("221 %s :+%s",targetuser->nick,targetuser->FormatModes()); - if (IS_OPER(targetuser)) - user->WriteServ("008 %s +%s :Server notice mask", targetuser->nick, targetuser->FormatNoticeMasks()); - return; - } - else - { - user->WriteServ("502 %s :Can't change mode for other users", user->nick); - return; - } - } - - /* No such nick/channel */ - user->WriteServ("401 %s %s :No such nick/channel",user->nick, text); - return; -} - -void ModeParser::Process(const char** parameters, int pcnt, userrec *user, bool servermode) -{ - std::string target = parameters[0]; - ModeType type = MODETYPE_USER; - unsigned char mask = 0; - chanrec* targetchannel = ServerInstance->FindChan(parameters[0]); - userrec* targetuser = ServerInstance->FindNick(parameters[0]); - - LastParse.clear(); - - /* Special case for displaying the list for listmodes, - * e.g. MODE #chan b, or MODE #chan +b without a parameter - */ - if ((targetchannel) && (pcnt == 2)) - { - const char* mode = parameters[1]; - int nonlistmodes_found = 0; - bool sent[256]; - - mask = MASK_CHANNEL; - - memset(&sent, 0, 256); - - while (mode && *mode) - { - unsigned char mletter = *mode; - - if (*mode == '+') - { - mode++; - continue; - } - - /* Ensure the user doesnt request the same mode twice, - * so they cant flood themselves off out of idiocy. - */ - if (!sent[mletter]) - { - sent[mletter] = true; - } - else - { - mode++; - continue; - } - - ModeHandler *mh = this->FindMode(*mode, MODETYPE_CHANNEL); - bool display = true; - - if ((mh) && (mh->IsListMode())) - { - if (ServerInstance->Config->HideModeLists[mletter] && (targetchannel->GetStatus(user) < STATUS_HOP)) - { - user->WriteServ("482 %s %s :Only half-operators and above may view the +%c list",user->nick, targetchannel->name, *mode++); - continue; - } - - /** See below for a description of what craq this is :D - */ - unsigned char handler_id = (*mode - 65) | mask; - - for(ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) - { - std::string dummyparam; - - if (!((*watchers)->BeforeMode(user, NULL, targetchannel, dummyparam, true, MODETYPE_CHANNEL))) - display = false; - } - - if (display) - mh->DisplayList(user, targetchannel); - } - else - nonlistmodes_found++; - - mode++; - } - - /* We didnt have any modes that were non-list, we can return here */ - if (!nonlistmodes_found) - return; - } - - if (pcnt == 1) - { - this->DisplayCurrentModes(user, targetuser, targetchannel, parameters[0]); - } - else if (pcnt > 1) - { - if (targetchannel) - { - type = MODETYPE_CHANNEL; - mask = MASK_CHANNEL; - - /* Extra security checks on channel modes - * (e.g. are they a (half)op? - */ - - if ((IS_LOCAL(user)) && (targetchannel->GetStatus(user) < STATUS_HOP)) - { - /* We don't have halfop */ - int MOD_RESULT = 0; - FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user, NULL, targetchannel, AC_GENERAL_MODE)); - if (MOD_RESULT == ACR_DENY) - return; - - if (MOD_RESULT == ACR_DEFAULT) - { - /* Are we a uline or is it a servermode? */ - if ((!ServerInstance->ULine(user->server)) && (!servermode)) - { - /* Not enough permission: - * NOT a uline and NOT a servermode, - * OR, NOT halfop or above. - */ - user->WriteServ("482 %s %s :You're not a channel (half)operator",user->nick, targetchannel->name); - return; - } - } - } - } - else if (targetuser) - { - type = MODETYPE_USER; - mask = MASK_USER; - if ((user != targetuser) && (!ServerInstance->ULine(user->server))) - { - user->WriteServ("502 %s :Can't change mode for other users", user->nick); - return; - } - } - else - { - /* No such nick/channel */ - user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[0]); - return; - } - - std::string mode_sequence = parameters[1]; - std::string parameter; - std::ostringstream parameter_list; - std::string output_sequence; - bool adding = true, state_change = false; - unsigned char handler_id = 0; - int parameter_counter = 2; /* Index of first parameter */ - int parameter_count = 0; - bool last_successful_state_change = false; - - /* A mode sequence that doesnt start with + or -. Assume +. - Thanks for the suggestion spike (bug#132) */ - if ((*mode_sequence.begin() != '+') && (*mode_sequence.begin() != '-')) - mode_sequence.insert(0, "+"); - - for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++) - { - unsigned char modechar = *letter; - - switch (modechar) - { - /* NB: - * For + and - mode characters, we don't just stick the character into the output sequence. - * This is because the user may do something dumb, like: +-+ooo or +oo-+. To prevent this - * appearing in the output sequence, we store a flag which says there was a state change, - * which is set on any + or -, however, the + or - that we finish on is only appended to - * the output stream in the event it is followed by a non "+ or -" character, such as o or v. - */ - case '+': - /* The following expression prevents: +o+o nick nick, compressing it to +oo nick nick, - * however, will allow the + if it is the first item in the sequence, regardless. - */ - if ((!adding) || (!output_sequence.length())) - state_change = true; - adding = true; - if (!output_sequence.length()) - last_successful_state_change = false; - continue; - break; - case '-': - if ((adding) || (!output_sequence.length())) - state_change = true; - adding = false; - if (!output_sequence.length()) - last_successful_state_change = true; - continue; - break; - default: - - /** - * Watch carefully for the sleight of hand trick. - * 65 is the ascii value of 'A'. We take this from - * the char we're looking at to get a number between - * 1 and 127. We then logic-or it to get the hashed - * position, dependent on wether its a channel or - * a user mode. This is a little stranger, but a lot - * faster, than using a map of pairs. - */ - handler_id = (modechar - 65) | mask; - - if (modehandlers[handler_id]) - { - bool abort = false; - - if (modehandlers[handler_id]->GetModeType() == type) - { - if (modehandlers[handler_id]->GetNumParams(adding)) - { - /* This mode expects a parameter, do we have any parameters left in our list to use? */ - if (parameter_counter < pcnt) - { - parameter = parameters[parameter_counter++]; - - /* Yerk, invalid! */ - if ((parameter.find(':') == 0) || (parameter.rfind(' ') != std::string::npos)) - parameter.clear(); - } - else - { - /* No parameter, continue to the next mode */ - continue; - } - - bool had_parameter = !parameter.empty(); - - for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) - { - if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == false) - { - abort = true; - break; - } - /* A module whacked the parameter completely, and there was one. abort. */ - if ((had_parameter) && (parameter.empty())) - { - abort = true; - break; - } - } - - if (abort) - continue; - } - else - { - /* Fix by brain: mode watchers not being called for parameterless modes */ - for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) - { - if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == false) - { - abort = true; - break; - } - } - - if (abort) - continue; - } - - /* It's an oper only mode, check if theyre an oper. If they arent, - * eat any parameter that came with the mode, and continue to next - */ - if ((IS_LOCAL(user)) && (modehandlers[handler_id]->NeedsOper()) && (!IS_OPER(user))) - { - user->WriteServ("481 %s :Permission Denied - Only IRC operators may %sset %s mode %c", user->nick, - adding ? "" : "un", type == MODETYPE_CHANNEL ? "channel" : "user", - modehandlers[handler_id]->GetModeChar()); - continue; - } - - /* Call the handler for the mode */ - ModeAction ma = modehandlers[handler_id]->OnModeChange(user, targetuser, targetchannel, parameter, adding); - - if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter.empty())) - { - /* The handler nuked the parameter and they are supposed to have one. - * We CANT continue now, even if they actually returned MODEACTION_ALLOW, - * so we bail to the next mode character. - */ - continue; - } - - if (ma == MODEACTION_ALLOW) - { - /* We're about to output a valid mode letter - was there previously a pending state-change? */ - if (state_change) - { - if (adding != last_successful_state_change) - output_sequence.append(adding ? "+" : "-"); - last_successful_state_change = adding; - } - - /* Add the mode letter */ - output_sequence.push_back(modechar); - - /* Is there a valid parameter for this mode? If so add it to the parameter list */ - if ((modehandlers[handler_id]->GetNumParams(adding)) && (!parameter.empty())) - { - parameter_list << " " << parameter; - parameter_count++; - /* Does this mode have a prefix? */ - if (modehandlers[handler_id]->GetPrefix() && targetchannel) - { - userrec* user_to_prefix = ServerInstance->FindNick(parameter); - if (user_to_prefix) - targetchannel->SetPrefix(user_to_prefix, modehandlers[handler_id]->GetPrefix(), - modehandlers[handler_id]->GetPrefixRank(), adding); - } - } - - /* Call all the AfterMode events in the mode watchers for this mode */ - for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) - (*watchers)->AfterMode(user, targetuser, targetchannel, parameter, adding, type); - - /* Reset the state change flag */ - state_change = false; - - if ((output_sequence.length() + parameter_list.str().length() > 450) || (output_sequence.length() > 100) - || (parameter_count > MAXMODES)) - { - /* We cant have a mode sequence this long */ - letter = mode_sequence.end() - 1; - continue; - } - } - } - } - else - { - /* No mode handler? Unknown mode character then. */ - user->WriteServ("472 %s %c :is unknown mode char to me",user->nick, modechar); - } - break; - } - } - - /* Was there at least one valid mode in the sequence? */ - if (!output_sequence.empty()) - { - if (servermode) - { - if (type == MODETYPE_CHANNEL) - { - targetchannel->WriteChannelWithServ(ServerInstance->Config->ServerName, "MODE %s %s%s", targetchannel->name, output_sequence.c_str(), parameter_list.str().c_str()); - this->LastParse = targetchannel->name; - } - else - { - targetuser->WriteServ("MODE %s %s%s",targetuser->nick,output_sequence.c_str(), parameter_list.str().c_str()); - this->LastParse = targetuser->nick; - } - } - else - { - if (type == MODETYPE_CHANNEL) - { - targetchannel->WriteChannel(user,"MODE %s %s%s",targetchannel->name,output_sequence.c_str(),parameter_list.str().c_str()); - FOREACH_MOD(I_OnMode,OnMode(user, targetchannel, TYPE_CHANNEL, output_sequence + parameter_list.str())); - this->LastParse = targetchannel->name; - } - else - { - user->WriteTo(targetuser,"MODE %s %s%s",targetuser->nick,output_sequence.c_str(), parameter_list.str().c_str()); - FOREACH_MOD(I_OnMode,OnMode(user, targetuser, TYPE_USER, output_sequence + parameter_list.str())); - this->LastParse = targetuser->nick; - } - } - - LastParse.append(" "); - LastParse.append(output_sequence); - LastParse.append(parameter_list.str()); - } - } -} - -const std::string& ModeParser::GetLastParse() -{ - return LastParse; -} - -void ModeParser::CleanMask(std::string &mask) -{ - std::string::size_type pos_of_pling = mask.find_first_of('!'); - std::string::size_type pos_of_at = mask.find_first_of('@'); - std::string::size_type pos_of_dot = mask.find_first_of('.'); - std::string::size_type pos_of_colon = mask.find_first_of(':'); /* Because ipv6 addresses are colon delimited */ - - if ((pos_of_pling == std::string::npos) && (pos_of_at == std::string::npos)) - { - /* Just a nick, or just a host */ - if ((pos_of_dot == std::string::npos) && (pos_of_colon == std::string::npos)) - { - /* It has no '.' in it, it must be a nick. */ - mask.append("!*@*"); - } - else - { - /* Got a dot in it? Has to be a host */ - mask = "*!*@" + mask; - } - } - else if ((pos_of_pling == std::string::npos) && (pos_of_at != std::string::npos)) - { - /* Has an @ but no !, its a user@host */ - mask = "*!" + mask; - } - else if ((pos_of_pling != std::string::npos) && (pos_of_at == std::string::npos)) - { - /* Has a ! but no @, it must be a nick!ident */ - mask.append("@*"); - } -} - -bool ModeParser::AddMode(ModeHandler* mh, unsigned const char modeletter) -{ - unsigned char mask = 0; - unsigned char pos = 0; - - /* Yes, i know, this might let people declare modes like '_' or '^'. - * If they do that, thats their problem, and if i ever EVER see an - * official InspIRCd developer do that, i'll beat them with a paddle! - */ - if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z') || (mh->GetPrefix() > 126)) - return false; - - /* A mode prefix of ',' is not acceptable, it would fuck up server to server. - * A mode prefix of ':' will fuck up both server to server, and client to server. - * A mode prefix of '#' will mess up /whois and /privmsg - */ - if ((mh->GetPrefix() == ',') || (mh->GetPrefix() == ':') || (mh->GetPrefix() == '#')) - return false; - - mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; - pos = (mh->GetModeChar()-65) | mask; - - if (modehandlers[pos]) - return false; - - modehandlers[pos] = mh; - return true; -} - -bool ModeParser::DelMode(ModeHandler* mh) -{ - unsigned char mask = 0; - unsigned char pos = 0; - - if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z')) - return false; - - mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; - pos = (mh->GetModeChar()-65) | mask; - - if (!modehandlers[pos]) - return false; - - switch (mh->GetModeType()) - { - case MODETYPE_USER: - for (user_hash::iterator i = ServerInstance->clientlist->begin(); i != ServerInstance->clientlist->end(); i++) - { - mh->RemoveMode(i->second); - } - break; - case MODETYPE_CHANNEL: - for (chan_hash::iterator i = ServerInstance->chanlist->begin(); i != ServerInstance->chanlist->end(); i++) - { - mh->RemoveMode(i->second); - } - break; - } - - modehandlers[pos] = NULL; - - return true; -} - -ModeHandler* ModeParser::FindMode(unsigned const char modeletter, ModeType mt) -{ - unsigned char mask = 0; - unsigned char pos = 0; - - if ((modeletter < 'A') || (modeletter > 'z')) - return NULL; - - mt == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; - pos = (modeletter-65) | mask; - - return modehandlers[pos]; -} - -std::string ModeParser::UserModeList() -{ - char modestr[256]; - int pointer = 0; - - for (unsigned char mode = 'A'; mode <= 'z'; mode++) - { - unsigned char pos = (mode-65) | MASK_USER; - - if (modehandlers[pos]) - modestr[pointer++] = mode; - } - modestr[pointer++] = 0; - return modestr; -} - -std::string ModeParser::ChannelModeList() -{ - char modestr[256]; - int pointer = 0; - - for (unsigned char mode = 'A'; mode <= 'z'; mode++) - { - if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h')) - continue; - - unsigned char pos = (mode-65) | MASK_CHANNEL; - - if (modehandlers[pos]) - modestr[pointer++] = mode; - } - modestr[pointer++] = 0; - return modestr; -} - -std::string ModeParser::ParaModeList() -{ - char modestr[256]; - int pointer = 0; - - for (unsigned char mode = 'A'; mode <= 'z'; mode++) - { - if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h')) - continue; - - unsigned char pos = (mode-65) | MASK_CHANNEL; - - if ((modehandlers[pos]) && (modehandlers[pos]->GetNumParams(true))) - modestr[pointer++] = mode; - } - modestr[pointer++] = 0; - return modestr; -} - -ModeHandler* ModeParser::FindPrefix(unsigned const char pfxletter) -{ - for (unsigned char mode = 'A'; mode <= 'z'; mode++) - { - unsigned char pos = (mode-65) | MASK_CHANNEL; - - if ((modehandlers[pos]) && (modehandlers[pos]->GetPrefix() == pfxletter)) - { - return modehandlers[pos]; - } - } - return NULL; -} - -std::string ModeParser::ModeString(userrec* user, chanrec* channel) -{ - std::string types; - std::string pars; - - if (!channel || !user) - return ""; - - for (unsigned char mode = 'A'; mode <= 'z'; mode++) - { - unsigned char pos = (mode-65) | MASK_CHANNEL; - ModeHandler* mh = modehandlers[pos]; - if ((mh) && (mh->GetNumParams(true)) && (mh->GetNumParams(false))) - { - ModePair ret; - ret = mh->ModeSet(NULL, user, channel, user->nick); - if ((ret.first) && (ret.second == user->nick)) - { - pars.append(" "); - pars.append(user->nick); - types.push_back(mh->GetModeChar()); - } - } - } - - return types+pars; -} - -std::string ModeParser::ChanModes() -{ - std::string type1; /* Listmodes EXCEPT those with a prefix */ - std::string type2; /* Modes that take a param when adding or removing */ - std::string type3; /* Modes that only take a param when adding */ - std::string type4; /* Modes that dont take a param */ - - for (unsigned char mode = 'A'; mode <= 'z'; mode++) - { - if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h')) - continue; - - unsigned char pos = (mode-65) | MASK_CHANNEL; - /* One parameter when adding */ - if (modehandlers[pos]) - { - if (modehandlers[pos]->GetNumParams(true)) - { - if ((modehandlers[pos]->IsListMode()) && (!modehandlers[pos]->GetPrefix())) - { - type1 += modehandlers[pos]->GetModeChar(); - } - else - { - /* ... and one parameter when removing */ - if (modehandlers[pos]->GetNumParams(false)) - { - /* But not a list mode */ - if (!modehandlers[pos]->GetPrefix()) - { - type2 += modehandlers[pos]->GetModeChar(); - } - } - else - { - /* No parameters when removing */ - type3 += modehandlers[pos]->GetModeChar(); - } - } - } - else - { - type4 += modehandlers[pos]->GetModeChar(); - } - } - - } - - return type1 + "," + type2 + "," + type3 + "," + type4; -} - -bool ModeParser::PrefixComparison(prefixtype one, prefixtype two) -{ - return one.second > two.second; -} - -std::string ModeParser::BuildPrefixes() -{ - std::string mletters; - std::string mprefixes; - pfxcontainer pfx; - std::map prefix_to_mode; - - for (unsigned char mode = 'A'; mode <= 'z'; mode++) - { - if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h')) - continue; - - unsigned char pos = (mode-65) | MASK_CHANNEL; - - if ((modehandlers[pos]) && (modehandlers[pos]->GetPrefix())) - { - pfx.push_back(std::make_pair(modehandlers[pos]->GetPrefix(), modehandlers[pos]->GetPrefixRank())); - prefix_to_mode[modehandlers[pos]->GetPrefix()] = modehandlers[pos]->GetModeChar(); - } - } - - sort(pfx.begin(), pfx.end(), ModeParser::PrefixComparison); - - for (pfxcontainer::iterator n = pfx.begin(); n != pfx.end(); n++) - { - mletters = mletters + n->first; - mprefixes = mprefixes + prefix_to_mode.find(n->first)->second; - } - - return "(" + mprefixes + ")" + mletters; -} - -bool ModeParser::AddModeWatcher(ModeWatcher* mw) -{ - unsigned char mask = 0; - unsigned char pos = 0; - - if (!mw) - return false; - - if ((mw->GetModeChar() < 'A') || (mw->GetModeChar() > 'z')) - return false; - - mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; - pos = (mw->GetModeChar()-65) | mask; - - modewatchers[pos].push_back(mw); - - return true; -} - -bool ModeParser::DelModeWatcher(ModeWatcher* mw) -{ - unsigned char mask = 0; - unsigned char pos = 0; - - if (!mw) - return false; - - if ((mw->GetModeChar() < 'A') || (mw->GetModeChar() > 'z')) - return false; - - mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; - pos = (mw->GetModeChar()-65) | mask; - - ModeWatchIter a = find(modewatchers[pos].begin(),modewatchers[pos].end(),mw); - - if (a == modewatchers[pos].end()) - { - return false; - } - - modewatchers[pos].erase(a); - - return true; -} - -/** This default implementation can remove simple user modes - */ -void ModeHandler::RemoveMode(userrec* user) -{ - char moderemove[MAXBUF]; - const char* parameters[] = { user->nick, moderemove }; - - if (user->IsModeSet(this->GetModeChar())) - { - sprintf(moderemove,"-%c",this->GetModeChar()); - ServerInstance->Parser->CallHandler("MODE", parameters, 2, user); - } -} - -/** This default implementation can remove simple channel modes - * (no parameters) - */ -void ModeHandler::RemoveMode(chanrec* channel) -{ - char moderemove[MAXBUF]; - const char* parameters[] = { channel->name, moderemove }; - - if (channel->IsModeSet(this->GetModeChar())) - { - userrec* n = new userrec(ServerInstance); - - sprintf(moderemove,"-%c",this->GetModeChar()); - n->SetFd(FD_MAGIC_NUMBER); - - ServerInstance->SendMode(parameters, 2, n); - - delete n; - } -} - -ModeParser::ModeParser(InspIRCd* Instance) : ServerInstance(Instance) -{ - struct Initializer - { - char modechar; - ModeHandler* handler; - }; - - Initializer modes[] = { - { 's', new ModeChannelSecret(Instance) }, - { 'p', new ModeChannelPrivate(Instance) }, - { 'm', new ModeChannelModerated(Instance) }, - { 't', new ModeChannelTopicOps(Instance) }, - { 'n', new ModeChannelNoExternal(Instance) }, - { 'i', new ModeChannelInviteOnly(Instance) }, - { 'k', new ModeChannelKey(Instance) }, - { 'l', new ModeChannelLimit(Instance) }, - { 'b', new ModeChannelBan(Instance) }, - { 'o', new ModeChannelOp(Instance) }, - { 'h', new ModeChannelHalfOp(Instance) }, - { 'v', new ModeChannelVoice(Instance) }, - { 's', new ModeUserServerNotice(Instance) }, - { 'w', new ModeUserWallops(Instance) }, - { 'i', new ModeUserInvisible(Instance) }, - { 'o', new ModeUserOperator(Instance) }, - { 'n', new ModeUserServerNoticeMask(Instance) }, - { 0, NULL } - }; - - /* Clear mode list */ - memset(modehandlers, 0, sizeof(modehandlers)); - memset(modewatchers, 0, sizeof(modewatchers)); - - /* Last parse string */ - LastParse.clear(); - - /* Initialise the RFC mode letters */ - for (int index = 0; modes[index].modechar; index++) - this->AddMode(modes[index].handler, modes[index].modechar); -} +/* +------------------------------------+ * | 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 "users.h" #include "modules.h" #include "inspstring.h" #include "mode.h" /* +s (secret) */ #include "modes/cmode_s.h" /* +p (private) */ #include "modes/cmode_p.h" /* +b (bans) */ #include "modes/cmode_b.h" /* +m (moderated) */ #include "modes/cmode_m.h" /* +t (only (half) ops can change topic) */ #include "modes/cmode_t.h" /* +n (no external messages) */ #include "modes/cmode_n.h" /* +i (invite only) */ #include "modes/cmode_i.h" /* +k (keyed channel) */ #include "modes/cmode_k.h" /* +l (channel user limit) */ #include "modes/cmode_l.h" /* +o (channel op) */ #include "modes/cmode_o.h" /* +h (channel halfop) */ #include "modes/cmode_h.h" /* +v (channel voice) */ #include "modes/cmode_v.h" /* +s (server notices) */ #include "modes/umode_s.h" /* +w (see wallops) */ #include "modes/umode_w.h" /* +i (invisible) */ #include "modes/umode_i.h" /* +o (operator) */ #include "modes/umode_o.h" /* +n (notice mask - our implementation of snomasks) */ #include "modes/umode_n.h" ModeHandler::ModeHandler(InspIRCd* Instance, char modeletter, int parameters_on, int parameters_off, bool listmode, ModeType type, bool operonly, char mprefix) : ServerInstance(Instance), mode(modeletter), n_params_on(parameters_on), n_params_off(parameters_off), list(listmode), m_type(type), oper(operonly), prefix(mprefix), count(0) { } ModeHandler::~ModeHandler() { } bool ModeHandler::IsListMode() { return list; } unsigned int ModeHandler::GetPrefixRank() { return 0; } unsigned int ModeHandler::GetCount() { return 0; } void ModeHandler::ChangeCount(int modifier) { count += modifier; } ModeType ModeHandler::GetModeType() { return m_type; } bool ModeHandler::NeedsOper() { return oper; } char ModeHandler::GetPrefix() { return prefix; } int ModeHandler::GetNumParams(bool adding) { return adding ? n_params_on : n_params_off; } char ModeHandler::GetModeChar() { return mode; } ModeAction ModeHandler::OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding) { return MODEACTION_DENY; } ModePair ModeHandler::ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter) { if (dest) { return std::make_pair(dest->IsModeSet(this->mode), ""); } else { return std::make_pair(channel->IsModeSet(this->mode), ""); } } void ModeHandler::DisplayList(userrec* user, chanrec* channel) { } bool ModeHandler::CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel) { return (ours < theirs); } ModeWatcher::ModeWatcher(InspIRCd* Instance, char modeletter, ModeType type) : ServerInstance(Instance), mode(modeletter), m_type(type) { } ModeWatcher::~ModeWatcher() { } char ModeWatcher::GetModeChar() { return mode; } ModeType ModeWatcher::GetModeType() { return m_type; } bool ModeWatcher::BeforeMode(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding, ModeType type) { return true; } void ModeWatcher::AfterMode(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter, bool adding, ModeType type) { } userrec* ModeParser::SanityChecks(userrec *user,const char *dest,chanrec *chan,int status) { userrec *d; if ((!user) || (!dest) || (!chan) || (!*dest)) { return NULL; } d = ServerInstance->FindNick(dest); if (!d) { user->WriteServ("401 %s %s :No such nick/channel",user->nick, dest); return NULL; } return d; } const char* ModeParser::Grant(userrec *d,chanrec *chan,int MASK) { if (!chan) return ""; UCListIter n = d->chans.find(chan); if (n != d->chans.end()) { if (n->second & MASK) { return ""; } n->second = n->second | MASK; switch (MASK) { case UCMODE_OP: n->first->AddOppedUser(d); break; case UCMODE_HOP: n->first->AddHalfoppedUser(d); break; case UCMODE_VOICE: n->first->AddVoicedUser(d); break; } return d->nick; } return ""; } const char* ModeParser::Revoke(userrec *d,chanrec *chan,int MASK) { if (!chan) return ""; UCListIter n = d->chans.find(chan); if (n != d->chans.end()) { if ((n->second & MASK) == 0) { return ""; } n->second ^= MASK; switch (MASK) { case UCMODE_OP: n->first->DelOppedUser(d); break; case UCMODE_HOP: n->first->DelHalfoppedUser(d); break; case UCMODE_VOICE: n->first->DelVoicedUser(d); break; } return d->nick; } return ""; } void ModeParser::DisplayCurrentModes(userrec *user, userrec* targetuser, chanrec* targetchannel, const char* text) { if (targetchannel) { /* Display channel's current mode string */ user->WriteServ("324 %s %s +%s",user->nick, targetchannel->name, targetchannel->ChanModes(targetchannel->HasUser(user))); user->WriteServ("329 %s %s %lu", user->nick, targetchannel->name, (unsigned long)targetchannel->age); return; } else if (targetuser) { if (targetuser->Visibility && !targetuser->Visibility->VisibleTo(user)) { user->WriteServ("401 %s %s :No such nick/channel",user->nick, text); return; } if ((targetuser == user) || (IS_OPER(user))) { /* Display user's current mode string */ user->WriteServ("221 %s :+%s",targetuser->nick,targetuser->FormatModes()); if (IS_OPER(targetuser)) user->WriteServ("008 %s +%s :Server notice mask", targetuser->nick, targetuser->FormatNoticeMasks()); return; } else { user->WriteServ("502 %s :Can't change mode for other users", user->nick); return; } } /* No such nick/channel */ user->WriteServ("401 %s %s :No such nick/channel",user->nick, text); return; } void ModeParser::Process(const char** parameters, int pcnt, userrec *user, bool servermode) { std::string target = parameters[0]; ModeType type = MODETYPE_USER; unsigned char mask = 0; chanrec* targetchannel = ServerInstance->FindChan(parameters[0]); userrec* targetuser = ServerInstance->FindNick(parameters[0]); LastParse.clear(); /* Special case for displaying the list for listmodes, * e.g. MODE #chan b, or MODE #chan +b without a parameter */ if ((targetchannel) && (pcnt == 2)) { const char* mode = parameters[1]; int nonlistmodes_found = 0; bool sent[256]; mask = MASK_CHANNEL; memset(&sent, 0, 256); while (mode && *mode) { unsigned char mletter = *mode; if (*mode == '+') { mode++; continue; } /* Ensure the user doesnt request the same mode twice, * so they cant flood themselves off out of idiocy. */ if (!sent[mletter]) { sent[mletter] = true; } else { mode++; continue; } ModeHandler *mh = this->FindMode(*mode, MODETYPE_CHANNEL); bool display = true; if ((mh) && (mh->IsListMode())) { if (ServerInstance->Config->HideModeLists[mletter] && (targetchannel->GetStatus(user) < STATUS_HOP)) { user->WriteServ("482 %s %s :Only half-operators and above may view the +%c list",user->nick, targetchannel->name, *mode++); continue; } /** See below for a description of what craq this is :D */ unsigned char handler_id = (*mode - 65) | mask; for(ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) { std::string dummyparam; if (!((*watchers)->BeforeMode(user, NULL, targetchannel, dummyparam, true, MODETYPE_CHANNEL))) display = false; } if (display) mh->DisplayList(user, targetchannel); } else nonlistmodes_found++; mode++; } /* We didnt have any modes that were non-list, we can return here */ if (!nonlistmodes_found) return; } if (pcnt == 1) { this->DisplayCurrentModes(user, targetuser, targetchannel, parameters[0]); } else if (pcnt > 1) { if (targetchannel) { type = MODETYPE_CHANNEL; mask = MASK_CHANNEL; /* Extra security checks on channel modes * (e.g. are they a (half)op? */ if ((IS_LOCAL(user)) && (targetchannel->GetStatus(user) < STATUS_HOP)) { /* We don't have halfop */ int MOD_RESULT = 0; FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user, NULL, targetchannel, AC_GENERAL_MODE)); if (MOD_RESULT == ACR_DENY) return; if (MOD_RESULT == ACR_DEFAULT) { /* Are we a uline or is it a servermode? */ if ((!ServerInstance->ULine(user->server)) && (!servermode)) { /* Not enough permission: * NOT a uline and NOT a servermode, * OR, NOT halfop or above. */ user->WriteServ("482 %s %s :You're not a channel (half)operator",user->nick, targetchannel->name); return; } } } } else if (targetuser) { type = MODETYPE_USER; mask = MASK_USER; if ((user != targetuser) && (!ServerInstance->ULine(user->server))) { user->WriteServ("502 %s :Can't change mode for other users", user->nick); return; } } else { /* No such nick/channel */ user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[0]); return; } std::string mode_sequence = parameters[1]; std::string parameter; std::ostringstream parameter_list; std::string output_sequence; bool adding = true, state_change = false; unsigned char handler_id = 0; int parameter_counter = 2; /* Index of first parameter */ int parameter_count = 0; bool last_successful_state_change = false; /* A mode sequence that doesnt start with + or -. Assume +. - Thanks for the suggestion spike (bug#132) */ if ((*mode_sequence.begin() != '+') && (*mode_sequence.begin() != '-')) mode_sequence.insert(0, "+"); for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++) { unsigned char modechar = *letter; switch (modechar) { /* NB: * For + and - mode characters, we don't just stick the character into the output sequence. * This is because the user may do something dumb, like: +-+ooo or +oo-+. To prevent this * appearing in the output sequence, we store a flag which says there was a state change, * which is set on any + or -, however, the + or - that we finish on is only appended to * the output stream in the event it is followed by a non "+ or -" character, such as o or v. */ case '+': /* The following expression prevents: +o+o nick nick, compressing it to +oo nick nick, * however, will allow the + if it is the first item in the sequence, regardless. */ if ((!adding) || (!output_sequence.length())) state_change = true; adding = true; if (!output_sequence.length()) last_successful_state_change = false; continue; break; case '-': if ((adding) || (!output_sequence.length())) state_change = true; adding = false; if (!output_sequence.length()) last_successful_state_change = true; continue; break; default: /** * Watch carefully for the sleight of hand trick. * 65 is the ascii value of 'A'. We take this from * the char we're looking at to get a number between * 1 and 127. We then logic-or it to get the hashed * position, dependent on wether its a channel or * a user mode. This is a little stranger, but a lot * faster, than using a map of pairs. */ handler_id = (modechar - 65) | mask; if (modehandlers[handler_id]) { bool abort = false; if (modehandlers[handler_id]->GetModeType() == type) { if (modehandlers[handler_id]->GetNumParams(adding)) { /* This mode expects a parameter, do we have any parameters left in our list to use? */ if (parameter_counter < pcnt) { parameter = parameters[parameter_counter++]; /* Yerk, invalid! */ if ((parameter.find(':') == 0) || (parameter.rfind(' ') != std::string::npos)) parameter.clear(); } else { /* No parameter, continue to the next mode */ continue; } bool had_parameter = !parameter.empty(); for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) { if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == false) { abort = true; break; } /* A module whacked the parameter completely, and there was one. abort. */ if ((had_parameter) && (parameter.empty())) { abort = true; break; } } if (abort) continue; } else { /* Fix by brain: mode watchers not being called for parameterless modes */ for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) { if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == false) { abort = true; break; } } if (abort) continue; } /* It's an oper only mode, check if theyre an oper. If they arent, * eat any parameter that came with the mode, and continue to next */ if ((IS_LOCAL(user)) && (modehandlers[handler_id]->NeedsOper()) && (!IS_OPER(user))) { user->WriteServ("481 %s :Permission Denied - Only IRC operators may %sset %s mode %c", user->nick, adding ? "" : "un", type == MODETYPE_CHANNEL ? "channel" : "user", modehandlers[handler_id]->GetModeChar()); continue; } /* Call the handler for the mode */ ModeAction ma = modehandlers[handler_id]->OnModeChange(user, targetuser, targetchannel, parameter, adding); if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter.empty())) { /* The handler nuked the parameter and they are supposed to have one. * We CANT continue now, even if they actually returned MODEACTION_ALLOW, * so we bail to the next mode character. */ continue; } if (ma == MODEACTION_ALLOW) { /* We're about to output a valid mode letter - was there previously a pending state-change? */ if (state_change) { if (adding != last_successful_state_change) output_sequence.append(adding ? "+" : "-"); last_successful_state_change = adding; } /* Add the mode letter */ output_sequence.push_back(modechar); /* Is there a valid parameter for this mode? If so add it to the parameter list */ if ((modehandlers[handler_id]->GetNumParams(adding)) && (!parameter.empty())) { parameter_list << " " << parameter; parameter_count++; /* Does this mode have a prefix? */ if (modehandlers[handler_id]->GetPrefix() && targetchannel) { userrec* user_to_prefix = ServerInstance->FindNick(parameter); if (user_to_prefix) targetchannel->SetPrefix(user_to_prefix, modehandlers[handler_id]->GetPrefix(), modehandlers[handler_id]->GetPrefixRank(), adding); } } /* Call all the AfterMode events in the mode watchers for this mode */ for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) (*watchers)->AfterMode(user, targetuser, targetchannel, parameter, adding, type); /* Reset the state change flag */ state_change = false; if ((output_sequence.length() + parameter_list.str().length() > 450) || (output_sequence.length() > 100) || (parameter_count > MAXMODES)) { /* We cant have a mode sequence this long */ letter = mode_sequence.end() - 1; continue; } } } } else { /* No mode handler? Unknown mode character then. */ user->WriteServ("472 %s %c :is unknown mode char to me",user->nick, modechar); } break; } } /* Was there at least one valid mode in the sequence? */ if (!output_sequence.empty()) { if (servermode) { if (type == MODETYPE_CHANNEL) { targetchannel->WriteChannelWithServ(ServerInstance->Config->ServerName, "MODE %s %s%s", targetchannel->name, output_sequence.c_str(), parameter_list.str().c_str()); this->LastParse = targetchannel->name; } else { targetuser->WriteServ("MODE %s %s%s",targetuser->nick,output_sequence.c_str(), parameter_list.str().c_str()); this->LastParse = targetuser->nick; } } else { if (type == MODETYPE_CHANNEL) { targetchannel->WriteChannel(user,"MODE %s %s%s",targetchannel->name,output_sequence.c_str(),parameter_list.str().c_str()); FOREACH_MOD(I_OnMode,OnMode(user, targetchannel, TYPE_CHANNEL, output_sequence + parameter_list.str())); this->LastParse = targetchannel->name; } else { user->WriteTo(targetuser,"MODE %s %s%s",targetuser->nick,output_sequence.c_str(), parameter_list.str().c_str()); FOREACH_MOD(I_OnMode,OnMode(user, targetuser, TYPE_USER, output_sequence + parameter_list.str())); this->LastParse = targetuser->nick; } } LastParse.append(" "); LastParse.append(output_sequence); LastParse.append(parameter_list.str()); } } } const std::string& ModeParser::GetLastParse() { return LastParse; } void ModeParser::CleanMask(std::string &mask) { std::string::size_type pos_of_pling = mask.find_first_of('!'); std::string::size_type pos_of_at = mask.find_first_of('@'); std::string::size_type pos_of_dot = mask.find_first_of('.'); std::string::size_type pos_of_colon = mask.find_first_of(':'); /* Because ipv6 addresses are colon delimited */ if ((pos_of_pling == std::string::npos) && (pos_of_at == std::string::npos)) { /* Just a nick, or just a host */ if ((pos_of_dot == std::string::npos) && (pos_of_colon == std::string::npos)) { /* It has no '.' in it, it must be a nick. */ mask.append("!*@*"); } else { /* Got a dot in it? Has to be a host */ mask = "*!*@" + mask; } } else if ((pos_of_pling == std::string::npos) && (pos_of_at != std::string::npos)) { /* Has an @ but no !, its a user@host */ mask = "*!" + mask; } else if ((pos_of_pling != std::string::npos) && (pos_of_at == std::string::npos)) { /* Has a ! but no @, it must be a nick!ident */ mask.append("@*"); } } bool ModeParser::AddMode(ModeHandler* mh, unsigned const char modeletter) { unsigned char mask = 0; unsigned char pos = 0; /* Yes, i know, this might let people declare modes like '_' or '^'. * If they do that, thats their problem, and if i ever EVER see an * official InspIRCd developer do that, i'll beat them with a paddle! */ if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z') || (mh->GetPrefix() > 126)) return false; /* A mode prefix of ',' is not acceptable, it would fuck up server to server. * A mode prefix of ':' will fuck up both server to server, and client to server. * A mode prefix of '#' will mess up /whois and /privmsg */ if ((mh->GetPrefix() == ',') || (mh->GetPrefix() == ':') || (mh->GetPrefix() == '#')) return false; mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; pos = (mh->GetModeChar()-65) | mask; if (modehandlers[pos]) return false; modehandlers[pos] = mh; return true; } bool ModeParser::DelMode(ModeHandler* mh) { unsigned char mask = 0; unsigned char pos = 0; if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z')) return false; mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; pos = (mh->GetModeChar()-65) | mask; if (!modehandlers[pos]) return false; switch (mh->GetModeType()) { case MODETYPE_USER: for (user_hash::iterator i = ServerInstance->clientlist->begin(); i != ServerInstance->clientlist->end(); i++) { mh->RemoveMode(i->second); } break; case MODETYPE_CHANNEL: for (chan_hash::iterator i = ServerInstance->chanlist->begin(); i != ServerInstance->chanlist->end(); i++) { mh->RemoveMode(i->second); } break; } modehandlers[pos] = NULL; return true; } ModeHandler* ModeParser::FindMode(unsigned const char modeletter, ModeType mt) { unsigned char mask = 0; unsigned char pos = 0; if ((modeletter < 'A') || (modeletter > 'z')) return NULL; mt == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; pos = (modeletter-65) | mask; return modehandlers[pos]; } std::string ModeParser::UserModeList() { char modestr[256]; int pointer = 0; for (unsigned char mode = 'A'; mode <= 'z'; mode++) { unsigned char pos = (mode-65) | MASK_USER; if (modehandlers[pos]) modestr[pointer++] = mode; } modestr[pointer++] = 0; return modestr; } std::string ModeParser::ChannelModeList() { char modestr[256]; int pointer = 0; for (unsigned char mode = 'A'; mode <= 'z'; mode++) { if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h')) continue; unsigned char pos = (mode-65) | MASK_CHANNEL; if (modehandlers[pos]) modestr[pointer++] = mode; } modestr[pointer++] = 0; return modestr; } std::string ModeParser::ParaModeList() { char modestr[256]; int pointer = 0; for (unsigned char mode = 'A'; mode <= 'z'; mode++) { if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h')) continue; unsigned char pos = (mode-65) | MASK_CHANNEL; if ((modehandlers[pos]) && (modehandlers[pos]->GetNumParams(true))) modestr[pointer++] = mode; } modestr[pointer++] = 0; return modestr; } ModeHandler* ModeParser::FindPrefix(unsigned const char pfxletter) { for (unsigned char mode = 'A'; mode <= 'z'; mode++) { unsigned char pos = (mode-65) | MASK_CHANNEL; if ((modehandlers[pos]) && (modehandlers[pos]->GetPrefix() == pfxletter)) { return modehandlers[pos]; } } return NULL; } std::string ModeParser::ModeString(userrec* user, chanrec* channel) { std::string types; std::string pars; if (!channel || !user) return ""; for (unsigned char mode = 'A'; mode <= 'z'; mode++) { unsigned char pos = (mode-65) | MASK_CHANNEL; ModeHandler* mh = modehandlers[pos]; if ((mh) && (mh->GetNumParams(true)) && (mh->GetNumParams(false))) { ModePair ret; ret = mh->ModeSet(NULL, user, channel, user->nick); if ((ret.first) && (ret.second == user->nick)) { pars.append(" "); pars.append(user->nick); types.push_back(mh->GetModeChar()); } } } return types+pars; } std::string ModeParser::ChanModes() { std::string type1; /* Listmodes EXCEPT those with a prefix */ std::string type2; /* Modes that take a param when adding or removing */ std::string type3; /* Modes that only take a param when adding */ std::string type4; /* Modes that dont take a param */ for (unsigned char mode = 'A'; mode <= 'z'; mode++) { if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h')) continue; unsigned char pos = (mode-65) | MASK_CHANNEL; /* One parameter when adding */ if (modehandlers[pos]) { if (modehandlers[pos]->GetNumParams(true)) { if ((modehandlers[pos]->IsListMode()) && (!modehandlers[pos]->GetPrefix())) { type1 += modehandlers[pos]->GetModeChar(); } else { /* ... and one parameter when removing */ if (modehandlers[pos]->GetNumParams(false)) { /* But not a list mode */ if (!modehandlers[pos]->GetPrefix()) { type2 += modehandlers[pos]->GetModeChar(); } } else { /* No parameters when removing */ type3 += modehandlers[pos]->GetModeChar(); } } } else { type4 += modehandlers[pos]->GetModeChar(); } } } return type1 + "," + type2 + "," + type3 + "," + type4; } bool ModeParser::PrefixComparison(prefixtype one, prefixtype two) { return one.second > two.second; } std::string ModeParser::BuildPrefixes() { std::string mletters; std::string mprefixes; pfxcontainer pfx; std::map prefix_to_mode; for (unsigned char mode = 'A'; mode <= 'z'; mode++) { if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h')) continue; unsigned char pos = (mode-65) | MASK_CHANNEL; if ((modehandlers[pos]) && (modehandlers[pos]->GetPrefix())) { pfx.push_back(std::make_pair(modehandlers[pos]->GetPrefix(), modehandlers[pos]->GetPrefixRank())); prefix_to_mode[modehandlers[pos]->GetPrefix()] = modehandlers[pos]->GetModeChar(); } } sort(pfx.begin(), pfx.end(), ModeParser::PrefixComparison); for (pfxcontainer::iterator n = pfx.begin(); n != pfx.end(); n++) { mletters = mletters + n->first; mprefixes = mprefixes + prefix_to_mode.find(n->first)->second; } return "(" + mprefixes + ")" + mletters; } bool ModeParser::AddModeWatcher(ModeWatcher* mw) { unsigned char mask = 0; unsigned char pos = 0; if (!mw) return false; if ((mw->GetModeChar() < 'A') || (mw->GetModeChar() > 'z')) return false; mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; pos = (mw->GetModeChar()-65) | mask; modewatchers[pos].push_back(mw); return true; } bool ModeParser::DelModeWatcher(ModeWatcher* mw) { unsigned char mask = 0; unsigned char pos = 0; if (!mw) return false; if ((mw->GetModeChar() < 'A') || (mw->GetModeChar() > 'z')) return false; mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; pos = (mw->GetModeChar()-65) | mask; ModeWatchIter a = find(modewatchers[pos].begin(),modewatchers[pos].end(),mw); if (a == modewatchers[pos].end()) { return false; } modewatchers[pos].erase(a); return true; } /** This default implementation can remove simple user modes */ void ModeHandler::RemoveMode(userrec* user) { char moderemove[MAXBUF]; const char* parameters[] = { user->nick, moderemove }; if (user->IsModeSet(this->GetModeChar())) { sprintf(moderemove,"-%c",this->GetModeChar()); ServerInstance->Parser->CallHandler("MODE", parameters, 2, user); } } /** This default implementation can remove simple channel modes * (no parameters) */ void ModeHandler::RemoveMode(chanrec* channel) { char moderemove[MAXBUF]; const char* parameters[] = { channel->name, moderemove }; if (channel->IsModeSet(this->GetModeChar())) { userrec* n = new userrec(ServerInstance); sprintf(moderemove,"-%c",this->GetModeChar()); n->SetFd(FD_MAGIC_NUMBER); ServerInstance->SendMode(parameters, 2, n); delete n; } } ModeParser::ModeParser(InspIRCd* Instance) : ServerInstance(Instance) { struct Initializer { char modechar; ModeHandler* handler; }; Initializer modes[] = { { 's', new ModeChannelSecret(Instance) }, { 'p', new ModeChannelPrivate(Instance) }, { 'm', new ModeChannelModerated(Instance) }, { 't', new ModeChannelTopicOps(Instance) }, { 'n', new ModeChannelNoExternal(Instance) }, { 'i', new ModeChannelInviteOnly(Instance) }, { 'k', new ModeChannelKey(Instance) }, { 'l', new ModeChannelLimit(Instance) }, { 'b', new ModeChannelBan(Instance) }, { 'o', new ModeChannelOp(Instance) }, { 'h', new ModeChannelHalfOp(Instance) }, { 'v', new ModeChannelVoice(Instance) }, { 's', new ModeUserServerNotice(Instance) }, { 'w', new ModeUserWallops(Instance) }, { 'i', new ModeUserInvisible(Instance) }, { 'o', new ModeUserOperator(Instance) }, { 'n', new ModeUserServerNoticeMask(Instance) }, { 0, NULL } }; /* Clear mode list */ memset(modehandlers, 0, sizeof(modehandlers)); memset(modewatchers, 0, sizeof(modewatchers)); /* Last parse string */ LastParse.clear(); /* Initialise the RFC mode letters */ for (int index = 0; modes[index].modechar; index++) this->AddMode(modes[index].handler, modes[index].modechar); } \ No newline at end of file -- cgit v1.3.1-10-gc9f91