X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmode.cpp;h=768623bd5fa944c0249539fd678bba4120370dc2;hb=551d687ec6d7ce44be35fae0dd7345fe73c4f63a;hp=73b465917abfe5e0d88a0ba75a3f252418072481;hpb=8456cf5ccd44911f4e56538fe0880dd7fc7cd96d;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/mode.cpp b/src/mode.cpp index 73b465917..768623bd5 100644 --- a/src/mode.cpp +++ b/src/mode.cpp @@ -1,58 +1,43 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2009 InspIRCd Development Team - * See: http://wiki.inspircd.org/Credits + * Copyright (C) 2012 Shawn Smith + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2007, 2009 Dennis Friis + * Copyright (C) 2006-2008 Robin Burchell + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2004-2008 Craig Edwards + * Copyright (C) 2006 Oliver Lupton * - * This program is free but copyrighted software; see - * the file COPYING for details. + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. * - * --------------------------------------------------- + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ -/* $Core */ #include "inspircd.h" -#include "inspstring.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" -/* +w (see wallops) */ -#include "modes/umode_w.h" -/* +i (invisible) */ -#include "modes/umode_i.h" -/* +o (operator) */ -#include "modes/umode_o.h" -/* +s (server notice masks) */ -#include "modes/umode_s.h" - -ModeHandler::ModeHandler(Module* Creator, char modeletter, ParamSpec Params, ModeType type) - : mode(modeletter), parameters_taken(Params), list(false), m_type(type), m_paramtype(TR_TEXT), - oper(false), prefix(0), count(0), levelrequired(HALFOP_VALUE), creator(Creator) +#include "builtinmodes.h" + +ModeHandler::ModeHandler(Module* Creator, const std::string& Name, char modeletter, ParamSpec Params, ModeType type) + : ServiceProvider(Creator, Name, SERVICE_MODE), m_paramtype(TR_TEXT), + parameters_taken(Params), mode(modeletter), prefix(0), oper(false), + list(false), m_type(type), levelrequired(HALFOP_VALUE) +{ +} + +CullResult ModeHandler::cull() { + if (ServerInstance->Modes) + ServerInstance->Modes->DelMode(this); + return classbase::cull(); } ModeHandler::~ModeHandler() @@ -69,17 +54,6 @@ unsigned int ModeHandler::GetPrefixRank() return 0; } -unsigned int ModeHandler::GetCount() -{ - return 0; -} - -void ModeHandler::ChangeCount(int modifier) -{ - count += modifier; - ServerInstance->Logs->Log("MODE", DEBUG,"Change count for mode %c is now %d", mode, count); -} - int ModeHandler::GetNumParams(bool adding) { switch (parameters_taken) @@ -94,11 +68,6 @@ int ModeHandler::GetNumParams(bool adding) return 0; } -char ModeHandler::GetModeChar() -{ - return mode; -} - std::string ModeHandler::GetUserParameter(User* user) { return ""; @@ -114,18 +83,6 @@ ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool) return MODEACTION_DENY; } -ModePair ModeHandler::ModeSet(User*, User* dest, Channel* channel, const std::string&) -{ - if (dest) - { - return std::make_pair(dest->IsModeSet(this->mode), ""); - } - else - { - return std::make_pair(channel->IsModeSet(this->mode), ""); - } -} - void ModeHandler::DisplayList(User*, Channel*) { } @@ -145,50 +102,62 @@ bool ModeHandler::ResolveModeConflict(std::string& theirs, const std::string& ou ModeAction SimpleUserModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding) { - if (adding) - { - if (!dest->IsModeSet(this->GetModeChar())) - { - dest->SetMode(this->GetModeChar(),true); - return MODEACTION_ALLOW; - } - } - else - { - if (dest->IsModeSet(this->GetModeChar())) - { - dest->SetMode(this->GetModeChar(),false); - return MODEACTION_ALLOW; - } - } + /* We're either trying to add a mode we already have or + remove a mode we don't have, deny. */ + if (dest->IsModeSet(this->GetModeChar()) == adding) + return MODEACTION_DENY; - return MODEACTION_DENY; + /* adding will be either true or false, depending on if we + are adding or removing the mode, since we already checked + to make sure we aren't adding a mode we have or that we + aren't removing a mode we don't have, we don't have to do any + other checks here to see if it's true or false, just add or + remove the mode */ + dest->SetMode(this->GetModeChar(), adding); + + return MODEACTION_ALLOW; } ModeAction SimpleChannelModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding) { + /* We're either trying to add a mode we already have or + remove a mode we don't have, deny. */ + if (channel->IsModeSet(this->GetModeChar()) == adding) + return MODEACTION_DENY; + + /* adding will be either true or false, depending on if we + are adding or removing the mode, since we already checked + to make sure we aren't adding a mode we have or that we + aren't removing a mode we don't have, we don't have to do any + other checks here to see if it's true or false, just add or + remove the mode */ + channel->SetMode(this->GetModeChar(), adding); + + return MODEACTION_ALLOW; +} + +ModeAction ParamChannelModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding) +{ + if (adding && !ParamValidate(parameter)) + return MODEACTION_DENY; + std::string now = channel->GetModeParameter(this); + if (parameter == now) + return MODEACTION_DENY; if (adding) - { - if (!channel->IsModeSet(this->GetModeChar())) - { - channel->SetMode(this->GetModeChar(),true); - return MODEACTION_ALLOW; - } - } + channel->SetModeParam(this, parameter); else - { - if (channel->IsModeSet(this->GetModeChar())) - { - channel->SetMode(this->GetModeChar(),false); - return MODEACTION_ALLOW; - } - } + channel->SetModeParam(this, ""); + return MODEACTION_ALLOW; +} - return MODEACTION_DENY; +bool ParamChannelModeHandler::ParamValidate(std::string& parameter) +{ + return true; } -ModeWatcher::ModeWatcher(char modeletter, ModeType type) : mode(modeletter), m_type(type) +ModeWatcher::ModeWatcher(Module* Creator, char modeletter, ModeType type) + : mode(modeletter), m_type(type), creator(Creator) { } @@ -246,7 +215,7 @@ void ModeParser::DisplayCurrentModes(User *user, User* targetuser, Channel* targ { /* Display user's current mode string */ user->WriteNumeric(RPL_UMODEIS, "%s :+%s",targetuser->nick.c_str(),targetuser->FormatModes()); - if (IS_OPER(targetuser)) + if ((targetuser->IsOper())) user->WriteNumeric(RPL_SNOMASKIS, "%s +%s :Server notice mask", targetuser->nick.c_str(), targetuser->FormatNoticeMasks()); return; } @@ -267,6 +236,10 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool ModeHandler *mh = FindMode(modechar, type); int pcnt = mh->GetNumParams(adding); + // crop mode parameter size to 250 characters + if (parameter.length() > 250 && adding) + parameter = parameter.substr(0, 250); + ModResult MOD_RESULT; FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, modechar, parameter, adding, pcnt)); @@ -290,11 +263,23 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool unsigned int ourrank = chan->GetPrefixValue(user); if (ourrank < neededrank) { - /* Bog off */ - // TODO replace with a real search for the proper prefix - char needed = neededrank > HALFOP_VALUE ? '@' : '%'; - user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :You must have channel privilege %c or above to %sset channel mode %c", - user->nick.c_str(), chan->name.c_str(), needed, adding ? "" : "un", modechar); + ModeHandler* neededmh = NULL; + for(char c='A'; c <= 'z'; c++) + { + ModeHandler *privmh = FindMode(c, MODETYPE_CHANNEL); + if (privmh && privmh->GetPrefixRank() >= neededrank) + { + // this mode is sufficient to allow this action + if (!neededmh || privmh->GetPrefixRank() < neededmh->GetPrefixRank()) + neededmh = privmh; + } + } + if (neededmh) + user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :You must have channel %s access or above to %sset channel mode %c", + user->nick.c_str(), chan->name.c_str(), neededmh->name.c_str(), adding ? "" : "un", modechar); + else + user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :You cannot %sset channel mode %c", + user->nick.c_str(), chan->name.c_str(), adding ? "" : "un", modechar); return MODEACTION_DENY; } } @@ -311,7 +296,7 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool return MODEACTION_DENY; } - if (IS_LOCAL(user) && !IS_OPER(user)) + if (IS_LOCAL(user) && !user->IsOper()) { char* disabled = (type == MODETYPE_CHANNEL) ? ServerInstance->Config->DisabledCModes : ServerInstance->Config->DisabledUModes; if (disabled[modechar - 'A']) @@ -325,10 +310,10 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool if (adding && IS_LOCAL(user) && mh->NeedsOper() && !user->HasModePermission(modechar, type)) { /* It's an oper only mode, and they don't have access to it. */ - if (IS_OPER(user)) + if (user->IsOper()) { user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - Oper type %s does not have access to set %s mode %c", - user->nick.c_str(), irc::Spacify(user->oper.c_str()), type == MODETYPE_CHANNEL ? "channel" : "user", modechar); + user->nick.c_str(), user->oper->NameStr(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar); } else { @@ -338,6 +323,21 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool return MODEACTION_DENY; } + if (mh->GetTranslateType() == TR_NICK && !ServerInstance->FindNick(parameter)) + { + user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel", user->nick.c_str(), parameter.c_str()); + return MODEACTION_DENY; + } + + if (mh->GetPrefixRank() && chan) + { + User* user_to_prefix = ServerInstance->FindNick(parameter); + if (!user_to_prefix) + return MODEACTION_DENY; + if (!chan->SetPrefix(user_to_prefix, modechar, adding)) + return MODEACTION_DENY; + } + /* Call the handler for the mode */ ModeAction ma = mh->OnModeChange(user, targetuser, chan, parameter, adding); @@ -347,15 +347,6 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool if (ma != MODEACTION_ALLOW) return ma; - mh->ChangeCount(adding ? 1 : -1); - - if (mh->GetPrefixRank() && chan) - { - User* user_to_prefix = ServerInstance->FindNick(parameter); - if (user_to_prefix) - chan->SetPrefix(user_to_prefix, modechar, adding); - } - for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) (*watchers)->AfterMode(user, targetuser, chan, parameter, adding, type); @@ -373,7 +364,7 @@ void ModeParser::Process(const std::vector& parameters, User *user, LastParseParams.clear(); LastParseTranslate.clear(); - if (!targetchannel && !targetuser) + if ((!targetchannel) && ((!targetuser) || (IS_SERVER(targetuser)))) { user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel",user->nick.c_str(),target.c_str()); return; @@ -384,22 +375,15 @@ void ModeParser::Process(const std::vector& parameters, User *user, return; } - std::string mode_sequence = parameters[1]; + ModResult MOD_RESULT; + FIRST_MOD_RESULT(OnPreMode, MOD_RESULT, (user, targetuser, targetchannel, parameters)); bool SkipAccessChecks = false; - if (!IS_LOCAL(user) || ServerInstance->ULine(user->server)) - { + if (!IS_LOCAL(user) || ServerInstance->ULine(user->server) || MOD_RESULT == MOD_RES_ALLOW) SkipAccessChecks = true; - } - else - { - ModResult MOD_RESULT; - FIRST_MOD_RESULT(OnPreMode, MOD_RESULT, (user, targetuser, targetchannel, parameters)); - if (MOD_RESULT == MOD_RES_DENY) - return; - SkipAccessChecks = (MOD_RESULT == MOD_RES_ALLOW); - } + else if (MOD_RESULT == MOD_RES_DENY) + return; if (targetuser && !SkipAccessChecks && user != targetuser) { @@ -407,6 +391,8 @@ void ModeParser::Process(const std::vector& parameters, User *user, return; } + std::string mode_sequence = parameters[1]; + std::string output_mode; std::ostringstream output_parameters; LastParseParams.push_back(output_mode); @@ -433,7 +419,7 @@ void ModeParser::Process(const std::vector& parameters, User *user, continue; } - std::string parameter = ""; + std::string parameter; int pcnt = mh->GetNumParams(adding); if (pcnt && param_at == parameters.size()) { @@ -552,13 +538,11 @@ void ModeParser::DisplayListModes(User* user, Channel* chan, std::string &mode_s bool display = true; if (!user->HasPrivPermission("channels/auspex") && ServerInstance->Config->HideModeLists[mletter] && (chan->GetPrefixValue(user) < HALFOP_VALUE)) { - user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :Only half-operators and above may view the +%c list", + user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :You do not have access to view the +%c list", user->nick.c_str(), chan->name.c_str(), mletter); display = false; } - /** See below for a description of what craq this is :D - */ unsigned char handler_id = (mletter - 'A') | MASK_CHANNEL; for(ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++) @@ -635,6 +619,9 @@ bool ModeParser::AddMode(ModeHandler* mh) if ((mh->GetPrefix() == ',') || (mh->GetPrefix() == ':') || (mh->GetPrefix() == '#')) return false; + if (mh->GetPrefix() && FindPrefix(mh->GetPrefix())) + return false; + mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; pos = (mh->GetModeChar()-65) | mask; @@ -656,7 +643,7 @@ bool ModeParser::DelMode(ModeHandler* mh) mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL; pos = (mh->GetModeChar()-65) | mask; - if (!modehandlers[pos]) + if (modehandlers[pos] != mh) return false; /* Note: We can't stack here, as we have modes potentially being removed across many different channels. @@ -665,15 +652,20 @@ bool ModeParser::DelMode(ModeHandler* mh) switch (mh->GetModeType()) { case MODETYPE_USER: - for (user_hash::iterator i = ServerInstance->Users->clientlist->begin(); i != ServerInstance->Users->clientlist->end(); i++) + for (user_hash::iterator i = ServerInstance->Users->clientlist->begin(); i != ServerInstance->Users->clientlist->end(); ) { - mh->RemoveMode(i->second); + User* user = i->second; + ++i; + mh->RemoveMode(user); } break; case MODETYPE_CHANNEL: - for (chan_hash::iterator i = ServerInstance->chanlist->begin(); i != ServerInstance->chanlist->end(); i++) + for (chan_hash::iterator i = ServerInstance->chanlist->begin(); i != ServerInstance->chanlist->end(); ) { - mh->RemoveMode(i->second); + // The channel may not be in the hash after RemoveMode(), see m_permchannels + Channel* chan = i->second; + ++i; + mh->RemoveMode(chan); } break; } @@ -759,40 +751,6 @@ ModeHandler* ModeParser::FindPrefix(unsigned const char pfxletter) return NULL; } -std::string ModeParser::ModeString(User* user, Channel* channel, bool nick_suffix) -{ - 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)) - { - if (nick_suffix) - { - pars.append(" "); - pars.append(user->nick); - } - types.push_back(mh->GetModeChar()); - } - } - } - - if (nick_suffix) - return types+pars; - else - return types; -} - std::string ModeParser::GiveModeList(ModeMasks m) { std::string type1; /* Listmodes EXCEPT those with a prefix */ @@ -840,7 +798,7 @@ std::string ModeParser::GiveModeList(ModeMasks m) return type1 + "," + type2 + "," + type3 + "," + type4; } -std::string ModeParser::BuildPrefixes() +std::string ModeParser::BuildPrefixes(bool lettersAndModes) { std::string mletters; std::string mprefixes; @@ -863,7 +821,7 @@ std::string ModeParser::BuildPrefixes() mprefixes = mprefixes + n->second.second; } - return "(" + mprefixes + ")" + mletters; + return lettersAndModes ? "(" + mprefixes + ")" + mletters : mletters; } bool ModeParser::AddModeWatcher(ModeWatcher* mw) @@ -915,9 +873,6 @@ bool ModeParser::DelModeWatcher(ModeWatcher* mw) */ void ModeHandler::RemoveMode(User* user, irc::modestacker* stack) { - char moderemove[MAXBUF]; - std::vector parameters; - if (user->IsModeSet(this->GetModeChar())) { if (stack) @@ -926,9 +881,10 @@ void ModeHandler::RemoveMode(User* user, irc::modestacker* stack) } else { - sprintf(moderemove,"-%c",this->GetModeChar()); + std::vector parameters; parameters.push_back(user->nick); - parameters.push_back(moderemove); + parameters.push_back("-"); + parameters[1].push_back(this->GetModeChar()); ServerInstance->Modes->Process(parameters, ServerInstance->FakeClient); } } @@ -939,9 +895,6 @@ void ModeHandler::RemoveMode(User* user, irc::modestacker* stack) */ void ModeHandler::RemoveMode(Channel* channel, irc::modestacker* stack) { - char moderemove[MAXBUF]; - std::vector parameters; - if (channel->IsModeSet(this->GetModeChar())) { if (stack) @@ -950,66 +903,64 @@ void ModeHandler::RemoveMode(Channel* channel, irc::modestacker* stack) } else { - sprintf(moderemove,"-%c",this->GetModeChar()); + std::vector parameters; parameters.push_back(channel->name); - parameters.push_back(moderemove); + parameters.push_back("-"); + parameters[1].push_back(this->GetModeChar()); ServerInstance->SendMode(parameters, ServerInstance->FakeClient); } } } -ModeParser::ModeParser() +struct builtin_modes { - ModeHandler* modes[] = - { - new ModeChannelSecret, - new ModeChannelPrivate, - new ModeChannelModerated, - new ModeChannelTopicOps, + ModeChannelSecret s; + ModeChannelPrivate p; + ModeChannelModerated m; + ModeChannelTopicOps t; + + ModeChannelNoExternal n; + ModeChannelInviteOnly i; + ModeChannelKey k; + ModeChannelLimit l; + + ModeChannelBan b; + ModeChannelOp o; + ModeChannelVoice v; - new ModeChannelNoExternal, - new ModeChannelInviteOnly, - new ModeChannelKey, - new ModeChannelLimit, + ModeUserWallops uw; + ModeUserInvisible ui; + ModeUserOperator uo; + ModeUserServerNoticeMask us; - new ModeChannelBan, - new ModeChannelOp, - new ModeChannelHalfOp, - new ModeChannelVoice, + void init() + { + ServiceProvider* modes[] = { &s, &p, &m, &t, &n, &i, &k, &l, &b, &o, &v, + &uw, &ui, &uo, &us }; + ServerInstance->Modules->AddServices(modes, sizeof(modes)/sizeof(ServiceProvider*)); + } +}; - new ModeUserWallops, - new ModeUserInvisible, - new ModeUserOperator, - new ModeUserServerNoticeMask, -#define BUILTIN_MODE_COUNT 16 - }; +static builtin_modes static_modes; + +void ModeParser::InitBuiltinModes() +{ + static_modes.init(); + static_modes.b.DoRehash(); +} +ModeParser::ModeParser() +{ /* Clear mode handler list */ memset(modehandlers, 0, sizeof(modehandlers)); /* Last parse string */ LastParse.clear(); - /* Initialise the RFC mode letters */ - for (int index = 0; index < BUILTIN_MODE_COUNT; index++) - this->AddMode(modes[index]); - seq = 0; memset(&sent, 0, sizeof(sent)); } ModeParser::~ModeParser() { - int count = 0; - for(int i=0; i < 256; i++) - { - ModeHandler* mh = modehandlers[i]; - if (mh && mh->creator == NULL) - { - count++; - delete mh; - } - } - if (count != BUILTIN_MODE_COUNT) - throw CoreException("Mode handler found non-core modes remaining at deallocation"); }