1 /* +------------------------------------+
\r * | Inspire Internet Relay Chat Daemon |
\r * +------------------------------------+
\r *
\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team
\r * See: http://www.inspircd.org/wiki/index.php/Credits
\r *
\r * This program is free but copyrighted software; see
\r * the file COPYING for details.
\r *
\r * ---------------------------------------------------
\r */
\r\r#include "inspircd.h"
\r#include "users.h"
\r#include "modules.h"
\r#include "inspstring.h"
\r#include "mode.h"
\r\r/* +s (secret) */
\r#include "modes/cmode_s.h"
\r/* +p (private) */
\r#include "modes/cmode_p.h"
\r/* +b (bans) */
\r#include "modes/cmode_b.h"
\r/* +m (moderated) */
\r#include "modes/cmode_m.h"
\r/* +t (only (half) ops can change topic) */
\r#include "modes/cmode_t.h"
\r/* +n (no external messages) */
\r#include "modes/cmode_n.h"
\r/* +i (invite only) */
\r#include "modes/cmode_i.h"
\r/* +k (keyed channel) */
\r#include "modes/cmode_k.h"
\r/* +l (channel user limit) */
\r#include "modes/cmode_l.h"
\r/* +o (channel op) */
\r#include "modes/cmode_o.h"
\r/* +h (channel halfop) */
\r#include "modes/cmode_h.h"
\r/* +v (channel voice) */
\r#include "modes/cmode_v.h"
\r/* +s (server notices) */
\r#include "modes/umode_s.h"
\r/* +w (see wallops) */
\r#include "modes/umode_w.h"
\r/* +i (invisible) */
\r#include "modes/umode_i.h"
\r/* +o (operator) */
\r#include "modes/umode_o.h"
\r/* +n (notice mask - our implementation of snomasks) */
\r#include "modes/umode_n.h"
\r\rModeHandler::ModeHandler(InspIRCd* Instance, char modeletter, int parameters_on, int parameters_off, bool listmode, ModeType type, bool operonly, char mprefix)
\r : 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)
\r{
\r}
\r\rModeHandler::~ModeHandler()
\r{
\r}
\r\rbool ModeHandler::IsListMode()
\r{
\r return list;
\r}
\r\runsigned int ModeHandler::GetPrefixRank()
\r{
\r return 0;
\r}
\r\runsigned int ModeHandler::GetCount()
\r{
\r return 0;
\r}
\r\rvoid ModeHandler::ChangeCount(int modifier)
\r{
\r count += modifier;
\r}
\r\rModeType ModeHandler::GetModeType()
\r{
\r return m_type;
\r}
\r\rbool ModeHandler::NeedsOper()
\r{
\r return oper;
\r}
\r\rchar ModeHandler::GetPrefix()
\r{
\r return prefix;
\r}
\r\rint ModeHandler::GetNumParams(bool adding)
\r{
\r return adding ? n_params_on : n_params_off;
\r}
\r\rchar ModeHandler::GetModeChar()
\r{
\r return mode;
\r}
\r\rModeAction ModeHandler::OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)
\r{
\r return MODEACTION_DENY;
\r}
\r\rModePair ModeHandler::ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter)
\r{
\r if (dest)
\r {
\r return std::make_pair(dest->IsModeSet(this->mode), "");
\r }
\r else
\r {
\r return std::make_pair(channel->IsModeSet(this->mode), "");
\r }
\r}
\r\rvoid ModeHandler::DisplayList(userrec* user, chanrec* channel)
\r{
\r}
\r\rbool ModeHandler::CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel)
\r{
\r return (ours < theirs);
\r}
\r\rModeWatcher::ModeWatcher(InspIRCd* Instance, char modeletter, ModeType type) : ServerInstance(Instance), mode(modeletter), m_type(type)
\r{
\r}
\r\rModeWatcher::~ModeWatcher()
\r{
\r}
\r\rchar ModeWatcher::GetModeChar()
\r{
\r return mode;
\r}
\r\rModeType ModeWatcher::GetModeType()
\r{
\r return m_type;
\r}
\r\rbool ModeWatcher::BeforeMode(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding, ModeType type)
\r{
\r return true;
\r}
\r\rvoid ModeWatcher::AfterMode(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter, bool adding, ModeType type)
\r{
\r}
\r\ruserrec* ModeParser::SanityChecks(userrec *user,const char *dest,chanrec *chan,int status)
\r{
\r userrec *d;
\r if ((!user) || (!dest) || (!chan) || (!*dest))
\r {
\r return NULL;
\r }
\r d = ServerInstance->FindNick(dest);
\r if (!d)
\r {
\r user->WriteServ("401 %s %s :No such nick/channel",user->nick, dest);
\r return NULL;
\r }
\r return d;
\r}
\r\rconst char* ModeParser::Grant(userrec *d,chanrec *chan,int MASK)
\r{
\r if (!chan)
\r return "";
\r\r UCListIter n = d->chans.find(chan);
\r if (n != d->chans.end())
\r {
\r if (n->second & MASK)
\r {
\r return "";
\r }
\r n->second = n->second | MASK;
\r switch (MASK)
\r {
\r case UCMODE_OP:
\r n->first->AddOppedUser(d);
\r break;
\r case UCMODE_HOP:
\r n->first->AddHalfoppedUser(d);
\r break;
\r case UCMODE_VOICE:
\r n->first->AddVoicedUser(d);
\r break;
\r }
\r return d->nick;
\r }
\r return "";
\r}
\r\rconst char* ModeParser::Revoke(userrec *d,chanrec *chan,int MASK)
\r{
\r if (!chan)
\r return "";
\r\r UCListIter n = d->chans.find(chan);
\r if (n != d->chans.end())
\r {
\r if ((n->second & MASK) == 0)
\r {
\r return "";
\r }
\r n->second ^= MASK;
\r switch (MASK)
\r {
\r case UCMODE_OP:
\r n->first->DelOppedUser(d);
\r break;
\r case UCMODE_HOP:
\r n->first->DelHalfoppedUser(d);
\r break;
\r case UCMODE_VOICE:
\r n->first->DelVoicedUser(d);
\r break;
\r }
\r return d->nick;
\r }
\r return "";
\r}
\r\rvoid ModeParser::DisplayCurrentModes(userrec *user, userrec* targetuser, chanrec* targetchannel, const char* text)
\r{
\r if (targetchannel)
\r {
\r /* Display channel's current mode string */
\r user->WriteServ("324 %s %s +%s",user->nick, targetchannel->name, targetchannel->ChanModes(targetchannel->HasUser(user)));
\r user->WriteServ("329 %s %s %lu", user->nick, targetchannel->name, (unsigned long)targetchannel->age);
\r return;
\r }
\r else if (targetuser)
\r {
\r if (targetuser->Visibility && !targetuser->Visibility->VisibleTo(user))
\r {
\r user->WriteServ("401 %s %s :No such nick/channel",user->nick, text);
\r return;
\r }
\r\r if ((targetuser == user) || (IS_OPER(user)))
\r {
\r /* Display user's current mode string */
\r user->WriteServ("221 %s :+%s",targetuser->nick,targetuser->FormatModes());
\r if (IS_OPER(targetuser))
\r user->WriteServ("008 %s +%s :Server notice mask", targetuser->nick, targetuser->FormatNoticeMasks());
\r return;
\r }
\r else
\r {
\r user->WriteServ("502 %s :Can't change mode for other users", user->nick);
\r return;
\r }
\r }
\r\r /* No such nick/channel */
\r user->WriteServ("401 %s %s :No such nick/channel",user->nick, text);
\r return;
\r}
\r\rvoid ModeParser::Process(const char** parameters, int pcnt, userrec *user, bool servermode)
\r{
\r std::string target = parameters[0];
\r ModeType type = MODETYPE_USER;
\r unsigned char mask = 0;
\r chanrec* targetchannel = ServerInstance->FindChan(parameters[0]);
\r userrec* targetuser = ServerInstance->FindNick(parameters[0]);
\r\r LastParse.clear();
\r\r /* Special case for displaying the list for listmodes,
\r * e.g. MODE #chan b, or MODE #chan +b without a parameter
\r */
\r if ((targetchannel) && (pcnt == 2))
\r {
\r const char* mode = parameters[1];
\r int nonlistmodes_found = 0;
\r bool sent[256];
\r\r mask = MASK_CHANNEL;
\r\r memset(&sent, 0, 256);
\r \r while (mode && *mode)
\r {
\r unsigned char mletter = *mode;
\r\r if (*mode == '+')
\r {
\r mode++;
\r continue;
\r }
\r\r /* Ensure the user doesnt request the same mode twice,
\r * so they cant flood themselves off out of idiocy.
\r */
\r if (!sent[mletter])
\r {
\r sent[mletter] = true;
\r }
\r else
\r {
\r mode++;
\r continue;
\r }
\r\r ModeHandler *mh = this->FindMode(*mode, MODETYPE_CHANNEL);
\r bool display = true;
\r\r if ((mh) && (mh->IsListMode()))
\r {
\r if (ServerInstance->Config->HideModeLists[mletter] && (targetchannel->GetStatus(user) < STATUS_HOP))
\r {
\r user->WriteServ("482 %s %s :Only half-operators and above may view the +%c list",user->nick, targetchannel->name, *mode++);
\r continue;
\r }
\r\r /** See below for a description of what craq this is :D
\r */
\r unsigned char handler_id = (*mode - 65) | mask;
\r\r for(ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
\r {
\r std::string dummyparam;
\r \r if (!((*watchers)->BeforeMode(user, NULL, targetchannel, dummyparam, true, MODETYPE_CHANNEL)))
\r display = false;
\r }
\r\r if (display)
\r mh->DisplayList(user, targetchannel);
\r }
\r else
\r nonlistmodes_found++;
\r\r mode++;
\r }
\r\r /* We didnt have any modes that were non-list, we can return here */
\r if (!nonlistmodes_found)
\r return;
\r }
\r\r if (pcnt == 1)
\r {
\r this->DisplayCurrentModes(user, targetuser, targetchannel, parameters[0]);
\r }
\r else if (pcnt > 1)
\r {
\r if (targetchannel)
\r {
\r type = MODETYPE_CHANNEL;
\r mask = MASK_CHANNEL;
\r\r /* Extra security checks on channel modes
\r * (e.g. are they a (half)op?
\r */
\r\r if ((IS_LOCAL(user)) && (targetchannel->GetStatus(user) < STATUS_HOP))
\r {
\r /* We don't have halfop */
\r int MOD_RESULT = 0;
\r FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user, NULL, targetchannel, AC_GENERAL_MODE));
\r if (MOD_RESULT == ACR_DENY)
\r return;
\r\r if (MOD_RESULT == ACR_DEFAULT)
\r {
\r /* Are we a uline or is it a servermode? */
\r if ((!ServerInstance->ULine(user->server)) && (!servermode))
\r {
\r /* Not enough permission:
\r * NOT a uline and NOT a servermode,
\r * OR, NOT halfop or above.
\r */
\r user->WriteServ("482 %s %s :You're not a channel (half)operator",user->nick, targetchannel->name);
\r return;
\r }
\r }
\r }
\r }
\r else if (targetuser)
\r {
\r type = MODETYPE_USER;
\r mask = MASK_USER;
\r if ((user != targetuser) && (!ServerInstance->ULine(user->server)))
\r {
\r user->WriteServ("502 %s :Can't change mode for other users", user->nick);
\r return;
\r }
\r }
\r else
\r {
\r /* No such nick/channel */
\r user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[0]);
\r return;
\r }
\r\r std::string mode_sequence = parameters[1];
\r std::string parameter;
\r std::ostringstream parameter_list;
\r std::string output_sequence;
\r bool adding = true, state_change = false;
\r unsigned char handler_id = 0;
\r int parameter_counter = 2; /* Index of first parameter */
\r int parameter_count = 0;
\r bool last_successful_state_change = false;
\r\r /* A mode sequence that doesnt start with + or -. Assume +. - Thanks for the suggestion spike (bug#132) */
\r if ((*mode_sequence.begin() != '+') && (*mode_sequence.begin() != '-'))
\r mode_sequence.insert(0, "+");
\r\r for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++)
\r {
\r unsigned char modechar = *letter;
\r\r switch (modechar)
\r {
\r /* NB:
\r * For + and - mode characters, we don't just stick the character into the output sequence.
\r * This is because the user may do something dumb, like: +-+ooo or +oo-+. To prevent this
\r * appearing in the output sequence, we store a flag which says there was a state change,
\r * which is set on any + or -, however, the + or - that we finish on is only appended to
\r * the output stream in the event it is followed by a non "+ or -" character, such as o or v.
\r */
\r case '+':
\r /* The following expression prevents: +o+o nick nick, compressing it to +oo nick nick,
\r * however, will allow the + if it is the first item in the sequence, regardless.
\r */
\r if ((!adding) || (!output_sequence.length()))
\r state_change = true;
\r adding = true;
\r if (!output_sequence.length())
\r last_successful_state_change = false;
\r continue;
\r break;
\r case '-':
\r if ((adding) || (!output_sequence.length()))
\r state_change = true;
\r adding = false;
\r if (!output_sequence.length())
\r last_successful_state_change = true;
\r continue;
\r break;
\r default:
\r\r /**
\r * Watch carefully for the sleight of hand trick.
\r * 65 is the ascii value of 'A'. We take this from
\r * the char we're looking at to get a number between
\r * 1 and 127. We then logic-or it to get the hashed
\r * position, dependent on wether its a channel or
\r * a user mode. This is a little stranger, but a lot
\r * faster, than using a map of pairs.
\r */
\r handler_id = (modechar - 65) | mask;
\r\r if (modehandlers[handler_id])
\r {
\r bool abort = false;
\r\r if (modehandlers[handler_id]->GetModeType() == type)
\r {
\r if (modehandlers[handler_id]->GetNumParams(adding))
\r {
\r /* This mode expects a parameter, do we have any parameters left in our list to use? */
\r if (parameter_counter < pcnt)
\r {
\r parameter = parameters[parameter_counter++];
\r\r /* Yerk, invalid! */
\r if ((parameter.find(':') == 0) || (parameter.rfind(' ') != std::string::npos))
\r parameter.clear();
\r }
\r else
\r {
\r /* No parameter, continue to the next mode */
\r continue;
\r }
\r\r bool had_parameter = !parameter.empty();
\r \r for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
\r {
\r if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == false)
\r {
\r abort = true;
\r break;
\r }
\r /* A module whacked the parameter completely, and there was one. abort. */
\r if ((had_parameter) && (parameter.empty()))
\r {
\r abort = true;
\r break;
\r }
\r }
\r\r if (abort)
\r continue;
\r }
\r else
\r {
\r /* Fix by brain: mode watchers not being called for parameterless modes */
\r for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
\r {
\r if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == false)
\r {
\r abort = true;
\r break;
\r }
\r }
\r\r if (abort)
\r continue;
\r }
\r\r /* It's an oper only mode, check if theyre an oper. If they arent,
\r * eat any parameter that came with the mode, and continue to next
\r */
\r if ((IS_LOCAL(user)) && (modehandlers[handler_id]->NeedsOper()) && (!IS_OPER(user)))
\r {
\r user->WriteServ("481 %s :Permission Denied - Only IRC operators may %sset %s mode %c", user->nick,
\r adding ? "" : "un", type == MODETYPE_CHANNEL ? "channel" : "user",
\r modehandlers[handler_id]->GetModeChar());
\r continue;
\r }
\r\r /* Call the handler for the mode */
\r ModeAction ma = modehandlers[handler_id]->OnModeChange(user, targetuser, targetchannel, parameter, adding);
\r\r if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter.empty()))
\r {
\r /* The handler nuked the parameter and they are supposed to have one.
\r * We CANT continue now, even if they actually returned MODEACTION_ALLOW,
\r * so we bail to the next mode character.
\r */
\r continue;
\r }
\r\r if (ma == MODEACTION_ALLOW)
\r {
\r /* We're about to output a valid mode letter - was there previously a pending state-change? */
\r if (state_change)
\r {
\r if (adding != last_successful_state_change)
\r output_sequence.append(adding ? "+" : "-");
\r last_successful_state_change = adding;
\r }
\r \r /* Add the mode letter */
\r output_sequence.push_back(modechar);
\r\r /* Is there a valid parameter for this mode? If so add it to the parameter list */
\r if ((modehandlers[handler_id]->GetNumParams(adding)) && (!parameter.empty()))
\r {
\r parameter_list << " " << parameter;
\r parameter_count++;
\r /* Does this mode have a prefix? */
\r if (modehandlers[handler_id]->GetPrefix() && targetchannel)
\r {
\r userrec* user_to_prefix = ServerInstance->FindNick(parameter);
\r if (user_to_prefix)
\r targetchannel->SetPrefix(user_to_prefix, modehandlers[handler_id]->GetPrefix(),
\r modehandlers[handler_id]->GetPrefixRank(), adding);
\r }
\r }
\r\r /* Call all the AfterMode events in the mode watchers for this mode */
\r for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
\r (*watchers)->AfterMode(user, targetuser, targetchannel, parameter, adding, type);
\r\r /* Reset the state change flag */
\r state_change = false;
\r\r if ((output_sequence.length() + parameter_list.str().length() > 450) || (output_sequence.length() > 100)
\r || (parameter_count > MAXMODES))
\r {
\r /* We cant have a mode sequence this long */
\r letter = mode_sequence.end() - 1;
\r continue;
\r }
\r }
\r }
\r }
\r else
\r {
\r /* No mode handler? Unknown mode character then. */
\r user->WriteServ("472 %s %c :is unknown mode char to me",user->nick, modechar);
\r }
\r break;
\r }
\r }
\r\r /* Was there at least one valid mode in the sequence? */
\r if (!output_sequence.empty())
\r {
\r if (servermode)
\r {
\r if (type == MODETYPE_CHANNEL)
\r {
\r targetchannel->WriteChannelWithServ(ServerInstance->Config->ServerName, "MODE %s %s%s", targetchannel->name, output_sequence.c_str(), parameter_list.str().c_str());
\r this->LastParse = targetchannel->name;
\r }
\r else
\r {
\r targetuser->WriteServ("MODE %s %s%s",targetuser->nick,output_sequence.c_str(), parameter_list.str().c_str());
\r this->LastParse = targetuser->nick;
\r }
\r }
\r else
\r {
\r if (type == MODETYPE_CHANNEL)
\r {
\r targetchannel->WriteChannel(user,"MODE %s %s%s",targetchannel->name,output_sequence.c_str(),parameter_list.str().c_str());
\r FOREACH_MOD(I_OnMode,OnMode(user, targetchannel, TYPE_CHANNEL, output_sequence + parameter_list.str()));
\r this->LastParse = targetchannel->name;
\r }
\r else
\r {
\r user->WriteTo(targetuser,"MODE %s %s%s",targetuser->nick,output_sequence.c_str(), parameter_list.str().c_str());
\r FOREACH_MOD(I_OnMode,OnMode(user, targetuser, TYPE_USER, output_sequence + parameter_list.str()));
\r this->LastParse = targetuser->nick;
\r }
\r }
\r\r LastParse.append(" ");
\r LastParse.append(output_sequence);
\r LastParse.append(parameter_list.str());
\r }
\r }
\r}
\r\rconst std::string& ModeParser::GetLastParse()
\r{
\r return LastParse;
\r}
\r\rvoid ModeParser::CleanMask(std::string &mask)
\r{
\r std::string::size_type pos_of_pling = mask.find_first_of('!');
\r std::string::size_type pos_of_at = mask.find_first_of('@');
\r std::string::size_type pos_of_dot = mask.find_first_of('.');
\r std::string::size_type pos_of_colon = mask.find_first_of(':'); /* Because ipv6 addresses are colon delimited */
\r\r if ((pos_of_pling == std::string::npos) && (pos_of_at == std::string::npos))
\r {
\r /* Just a nick, or just a host */
\r if ((pos_of_dot == std::string::npos) && (pos_of_colon == std::string::npos))
\r {
\r /* It has no '.' in it, it must be a nick. */
\r mask.append("!*@*");
\r }
\r else
\r {
\r /* Got a dot in it? Has to be a host */
\r mask = "*!*@" + mask;
\r }
\r }
\r else if ((pos_of_pling == std::string::npos) && (pos_of_at != std::string::npos))
\r {
\r /* Has an @ but no !, its a user@host */
\r mask = "*!" + mask;
\r }
\r else if ((pos_of_pling != std::string::npos) && (pos_of_at == std::string::npos))
\r {
\r /* Has a ! but no @, it must be a nick!ident */
\r mask.append("@*");
\r }
\r}
\r\rbool ModeParser::AddMode(ModeHandler* mh, unsigned const char modeletter)
\r{
\r unsigned char mask = 0;
\r unsigned char pos = 0;
\r\r /* Yes, i know, this might let people declare modes like '_' or '^'.
\r * If they do that, thats their problem, and if i ever EVER see an
\r * official InspIRCd developer do that, i'll beat them with a paddle!
\r */
\r if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z') || (mh->GetPrefix() > 126))
\r return false;
\r\r /* A mode prefix of ',' is not acceptable, it would fuck up server to server.
\r * A mode prefix of ':' will fuck up both server to server, and client to server.
\r * A mode prefix of '#' will mess up /whois and /privmsg
\r */
\r if ((mh->GetPrefix() == ',') || (mh->GetPrefix() == ':') || (mh->GetPrefix() == '#'))
\r return false;
\r\r mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
\r pos = (mh->GetModeChar()-65) | mask;
\r\r if (modehandlers[pos])
\r return false;
\r\r modehandlers[pos] = mh;
\r return true;
\r}
\r\rbool ModeParser::DelMode(ModeHandler* mh)
\r{
\r unsigned char mask = 0;
\r unsigned char pos = 0;
\r\r if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z'))
\r return false;
\r\r mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
\r pos = (mh->GetModeChar()-65) | mask;
\r\r if (!modehandlers[pos])
\r return false;
\r\r switch (mh->GetModeType())
\r {
\r case MODETYPE_USER:
\r for (user_hash::iterator i = ServerInstance->clientlist->begin(); i != ServerInstance->clientlist->end(); i++)
\r {
\r mh->RemoveMode(i->second);
\r }
\r break;
\r case MODETYPE_CHANNEL:
\r for (chan_hash::iterator i = ServerInstance->chanlist->begin(); i != ServerInstance->chanlist->end(); i++)
\r {
\r mh->RemoveMode(i->second);
\r }
\r break;
\r }
\r\r modehandlers[pos] = NULL;
\r\r return true;
\r}
\r\rModeHandler* ModeParser::FindMode(unsigned const char modeletter, ModeType mt)
\r{
\r unsigned char mask = 0;
\r unsigned char pos = 0;
\r\r if ((modeletter < 'A') || (modeletter > 'z'))
\r return NULL;
\r\r mt == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
\r pos = (modeletter-65) | mask;
\r\r return modehandlers[pos];
\r}
\r\rstd::string ModeParser::UserModeList()
\r{
\r char modestr[256];
\r int pointer = 0;
\r\r for (unsigned char mode = 'A'; mode <= 'z'; mode++)
\r {
\r unsigned char pos = (mode-65) | MASK_USER;
\r\r if (modehandlers[pos])
\r modestr[pointer++] = mode;
\r }
\r modestr[pointer++] = 0;
\r return modestr;
\r}
\r\rstd::string ModeParser::ChannelModeList()
\r{
\r char modestr[256];
\r int pointer = 0;
\r\r for (unsigned char mode = 'A'; mode <= 'z'; mode++)
\r {
\r if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h'))
\r continue;
\r\r unsigned char pos = (mode-65) | MASK_CHANNEL;
\r\r if (modehandlers[pos])
\r modestr[pointer++] = mode;
\r }
\r modestr[pointer++] = 0;
\r return modestr;
\r}
\r\rstd::string ModeParser::ParaModeList()
\r{
\r char modestr[256];
\r int pointer = 0;
\r\r for (unsigned char mode = 'A'; mode <= 'z'; mode++)
\r {
\r if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h'))
\r continue;
\r\r unsigned char pos = (mode-65) | MASK_CHANNEL;
\r\r if ((modehandlers[pos]) && (modehandlers[pos]->GetNumParams(true)))
\r modestr[pointer++] = mode;
\r }
\r modestr[pointer++] = 0;
\r return modestr;
\r}
\r\rModeHandler* ModeParser::FindPrefix(unsigned const char pfxletter)
\r{
\r for (unsigned char mode = 'A'; mode <= 'z'; mode++)
\r {
\r unsigned char pos = (mode-65) | MASK_CHANNEL;
\r\r if ((modehandlers[pos]) && (modehandlers[pos]->GetPrefix() == pfxletter))
\r {
\r return modehandlers[pos];
\r }
\r }
\r return NULL;
\r}
\r\rstd::string ModeParser::ModeString(userrec* user, chanrec* channel)
\r{
\r std::string types;
\r std::string pars;
\r\r if (!channel || !user)
\r return "";
\r\r for (unsigned char mode = 'A'; mode <= 'z'; mode++)
\r {
\r unsigned char pos = (mode-65) | MASK_CHANNEL;
\r ModeHandler* mh = modehandlers[pos];
\r if ((mh) && (mh->GetNumParams(true)) && (mh->GetNumParams(false)))
\r {
\r ModePair ret;
\r ret = mh->ModeSet(NULL, user, channel, user->nick);
\r if ((ret.first) && (ret.second == user->nick))
\r {
\r pars.append(" ");
\r pars.append(user->nick);
\r types.push_back(mh->GetModeChar());
\r }
\r }
\r }
\r\r return types+pars;
\r}
\r\rstd::string ModeParser::ChanModes()
\r{
\r std::string type1; /* Listmodes EXCEPT those with a prefix */
\r std::string type2; /* Modes that take a param when adding or removing */
\r std::string type3; /* Modes that only take a param when adding */
\r std::string type4; /* Modes that dont take a param */
\r\r for (unsigned char mode = 'A'; mode <= 'z'; mode++)
\r {
\r if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h'))
\r continue;
\r\r unsigned char pos = (mode-65) | MASK_CHANNEL;
\r /* One parameter when adding */
\r if (modehandlers[pos])
\r {
\r if (modehandlers[pos]->GetNumParams(true))
\r {
\r if ((modehandlers[pos]->IsListMode()) && (!modehandlers[pos]->GetPrefix()))
\r {
\r type1 += modehandlers[pos]->GetModeChar();
\r }
\r else
\r {
\r /* ... and one parameter when removing */
\r if (modehandlers[pos]->GetNumParams(false))
\r {
\r /* But not a list mode */
\r if (!modehandlers[pos]->GetPrefix())
\r {
\r type2 += modehandlers[pos]->GetModeChar();
\r }
\r }
\r else
\r {
\r /* No parameters when removing */
\r type3 += modehandlers[pos]->GetModeChar();
\r }
\r }
\r }
\r else
\r {
\r type4 += modehandlers[pos]->GetModeChar();
\r }
\r }
\r \r }
\r\r return type1 + "," + type2 + "," + type3 + "," + type4;
\r}
\r\rbool ModeParser::PrefixComparison(prefixtype one, prefixtype two)
\r{
\r return one.second > two.second;
\r}
\r\rstd::string ModeParser::BuildPrefixes()
\r{
\r std::string mletters;
\r std::string mprefixes;
\r pfxcontainer pfx;
\r std::map<char,char> prefix_to_mode;
\r\r for (unsigned char mode = 'A'; mode <= 'z'; mode++)
\r {
\r if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h'))
\r continue;
\r\r unsigned char pos = (mode-65) | MASK_CHANNEL;
\r\r if ((modehandlers[pos]) && (modehandlers[pos]->GetPrefix()))
\r {
\r pfx.push_back(std::make_pair<char,unsigned int>(modehandlers[pos]->GetPrefix(), modehandlers[pos]->GetPrefixRank()));
\r prefix_to_mode[modehandlers[pos]->GetPrefix()] = modehandlers[pos]->GetModeChar();
\r }
\r }
\r\r sort(pfx.begin(), pfx.end(), ModeParser::PrefixComparison);
\r\r for (pfxcontainer::iterator n = pfx.begin(); n != pfx.end(); n++)
\r {
\r mletters = mletters + n->first;
\r mprefixes = mprefixes + prefix_to_mode.find(n->first)->second;
\r }
\r\r return "(" + mprefixes + ")" + mletters;
\r}
\r\rbool ModeParser::AddModeWatcher(ModeWatcher* mw)
\r{
\r unsigned char mask = 0;
\r unsigned char pos = 0;
\r\r if (!mw)
\r return false;
\r\r if ((mw->GetModeChar() < 'A') || (mw->GetModeChar() > 'z'))
\r return false;
\r\r mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
\r pos = (mw->GetModeChar()-65) | mask;
\r\r modewatchers[pos].push_back(mw);
\r\r return true;
\r}
\r\rbool ModeParser::DelModeWatcher(ModeWatcher* mw)
\r{
\r unsigned char mask = 0;
\r unsigned char pos = 0;
\r\r if (!mw)
\r return false;
\r\r if ((mw->GetModeChar() < 'A') || (mw->GetModeChar() > 'z'))
\r return false;
\r\r mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
\r pos = (mw->GetModeChar()-65) | mask;
\r\r ModeWatchIter a = find(modewatchers[pos].begin(),modewatchers[pos].end(),mw);
\r\r if (a == modewatchers[pos].end())
\r {
\r return false;
\r }
\r\r modewatchers[pos].erase(a);
\r\r return true;
\r}
\r\r/** This default implementation can remove simple user modes
\r */
\rvoid ModeHandler::RemoveMode(userrec* user)
\r{
\r char moderemove[MAXBUF];
\r const char* parameters[] = { user->nick, moderemove };
\r\r if (user->IsModeSet(this->GetModeChar()))
\r {
\r sprintf(moderemove,"-%c",this->GetModeChar());
\r ServerInstance->Parser->CallHandler("MODE", parameters, 2, user);
\r }
\r}
\r\r/** This default implementation can remove simple channel modes
\r * (no parameters)
\r */
\rvoid ModeHandler::RemoveMode(chanrec* channel)
\r{
\r char moderemove[MAXBUF];
\r const char* parameters[] = { channel->name, moderemove };
\r\r if (channel->IsModeSet(this->GetModeChar()))
\r {
\r userrec* n = new userrec(ServerInstance);
\r\r sprintf(moderemove,"-%c",this->GetModeChar());
\r n->SetFd(FD_MAGIC_NUMBER);
\r\r ServerInstance->SendMode(parameters, 2, n);
\r\r delete n;
\r }
\r}
\r\rModeParser::ModeParser(InspIRCd* Instance) : ServerInstance(Instance)
\r{
\r struct Initializer
\r {
\r char modechar;
\r ModeHandler* handler;
\r };
\r\r Initializer modes[] = {
\r { 's', new ModeChannelSecret(Instance) },
\r { 'p', new ModeChannelPrivate(Instance) },
\r { 'm', new ModeChannelModerated(Instance) },
\r { 't', new ModeChannelTopicOps(Instance) },
\r { 'n', new ModeChannelNoExternal(Instance) },
\r { 'i', new ModeChannelInviteOnly(Instance) },
\r { 'k', new ModeChannelKey(Instance) },
\r { 'l', new ModeChannelLimit(Instance) },
\r { 'b', new ModeChannelBan(Instance) },
\r { 'o', new ModeChannelOp(Instance) },
\r { 'h', new ModeChannelHalfOp(Instance) },
\r { 'v', new ModeChannelVoice(Instance) },
\r { 's', new ModeUserServerNotice(Instance) },
\r { 'w', new ModeUserWallops(Instance) },
\r { 'i', new ModeUserInvisible(Instance) },
\r { 'o', new ModeUserOperator(Instance) },
\r { 'n', new ModeUserServerNoticeMask(Instance) },
\r { 0, NULL }
\r };
\r\r /* Clear mode list */
\r memset(modehandlers, 0, sizeof(modehandlers));
\r memset(modewatchers, 0, sizeof(modewatchers));
\r\r /* Last parse string */
\r LastParse.clear();
\r\r /* Initialise the RFC mode letters */
\r for (int index = 0; modes[index].modechar; index++)
\r this->AddMode(modes[index].handler, modes[index].modechar);
\r}
\r