diff options
Diffstat (limited to 'src/mode.cpp')
| -rw-r--r-- | src/mode.cpp | 1067 |
1 files changed, 1 insertions, 1066 deletions
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<char,char> 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<char,unsigned int>(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<char,char> 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<char,unsigned int>(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 |