X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmode.cpp;h=b29eda828e197a01f5f9bb2a0a65f8c9c7c647ac;hb=da29af8cba49d51e53d6e68237ccbf6370b6dd1f;hp=e00f7dc4c98c10d021577fa380cbc8d6c760714f;hpb=626005fe124d547119a113cd8c3c408a81c2f32e;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/mode.cpp b/src/mode.cpp index e00f7dc4c..b29eda828 100644 --- a/src/mode.cpp +++ b/src/mode.cpp @@ -27,7 +27,7 @@ #include "builtinmodes.h" ModeHandler::ModeHandler(Module* Creator, const std::string& Name, char modeletter, ParamSpec Params, ModeType type, Class mclass) - : ServiceProvider(Creator, Name, SERVICE_MODE), modeid(ModeParser::MODEID_MAX), m_paramtype(TR_TEXT), + : ServiceProvider(Creator, Name, SERVICE_MODE), modeid(ModeParser::MODEID_MAX), parameters_taken(Params), mode(modeletter), oper(false), list(false), m_type(type), type_id(mclass), levelrequired(HALFOP_VALUE) { @@ -90,6 +90,12 @@ bool ModeHandler::ResolveModeConflict(std::string& theirs, const std::string& ou return (theirs < ours); } +void ModeHandler::RegisterService() +{ + ServerInstance->Modes.AddMode(this); + ServerInstance->Modules.AddReferent((GetModeType() == MODETYPE_CHANNEL ? "mode/" : "umode/") + name, this); +} + ModeAction SimpleUserModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding) { /* We're either trying to add a mode we already have or @@ -152,42 +158,11 @@ void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool) { } -void ModeParser::DisplayCurrentModes(User *user, User* targetuser, Channel* targetchannel, const char* text) -{ - if (targetchannel) - { - /* Display channel's current mode string */ - user->WriteNumeric(RPL_CHANNELMODEIS, "%s +%s", targetchannel->name.c_str(), targetchannel->ChanModes(targetchannel->HasUser(user))); - user->WriteNumeric(RPL_CHANNELCREATED, "%s %lu", targetchannel->name.c_str(), (unsigned long)targetchannel->age); - return; - } - else - { - if (targetuser == user || user->HasPrivPermission("users/auspex")) - { - /* Display user's current mode string */ - user->WriteNumeric(RPL_UMODEIS, ":+%s", targetuser->FormatModes()); - if ((targetuser->IsOper())) - { - ModeHandler* snomask = FindMode('s', MODETYPE_USER); - user->WriteNumeric(RPL_SNOMASKIS, "%s :Server notice mask", snomask->GetUserParameter(user).c_str()); - } - return; - } - else - { - user->WriteNumeric(ERR_USERSDONTMATCH, ":Can't view modes for other users"); - return; - } - } -} - PrefixMode::PrefixMode(Module* Creator, const std::string& Name, char ModeLetter, unsigned int Rank, char PrefixChar) : ModeHandler(Creator, Name, ModeLetter, PARAM_ALWAYS, MODETYPE_CHANNEL, MC_PREFIX) , prefix(PrefixChar), prefixrank(Rank) { list = true; - m_paramtype = TR_NICK; } ModeAction PrefixMode::OnModeChange(User* source, User*, Channel* chan, std::string& parameter, bool adding) @@ -200,7 +175,7 @@ ModeAction PrefixMode::OnModeChange(User* source, User*, Channel* chan, std::str if (!target) { - source->WriteNumeric(ERR_NOSUCHNICK, "%s :No such nick/channel", parameter.c_str()); + source->WriteNumeric(Numerics::NoSuchNick(parameter)); return MODEACTION_DENY; } @@ -238,17 +213,18 @@ ModeAction ParamModeBase::OnModeChange(User* source, User*, Channel* chan, std:: return MODEACTION_ALLOW; } -ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool adding, const unsigned char modechar, - std::string ¶meter, bool SkipACL) +ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, Modes::Change& mcitem, bool SkipACL) { ModeType type = chan ? MODETYPE_CHANNEL : MODETYPE_USER; - ModeHandler *mh = FindMode(modechar, type); + ModeHandler* mh = mcitem.mh; + bool adding = mcitem.adding; int pcnt = mh->GetNumParams(adding); + std::string& parameter = mcitem.param; // crop mode parameter size to 250 characters if (parameter.length() > 250 && adding) - parameter = parameter.substr(0, 250); + parameter.erase(250); ModResult MOD_RESULT; FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, mh, parameter, adding)); @@ -256,6 +232,8 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool if (IS_LOCAL(user) && (MOD_RESULT == MOD_RES_DENY)) return MODEACTION_DENY; + const char modechar = mh->GetModeChar(); + if (chan && !SkipACL && (MOD_RESULT != MOD_RES_ALLOW)) { MOD_RESULT = mh->AccessCheck(user, chan, parameter, adding); @@ -285,19 +263,18 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool } } if (neededmh) - user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s :You must have channel %s access or above to %sset channel mode %c", - chan->name.c_str(), neededmh->name.c_str(), adding ? "" : "un", modechar); + user->WriteNumeric(ERR_CHANOPRIVSNEEDED, chan->name, InspIRCd::Format("You must have channel %s access or above to %sset channel mode %c", + neededmh->name.c_str(), adding ? "" : "un", modechar)); else - user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s :You cannot %sset channel mode %c", - chan->name.c_str(), adding ? "" : "un", modechar); + user->WriteNumeric(ERR_CHANOPRIVSNEEDED, chan->name, InspIRCd::Format("You cannot %sset channel mode %c", (adding ? "" : "un"), modechar)); return MODEACTION_DENY; } } } // Ask mode watchers whether this mode change is OK - std::pair itpair = modewatchermap.equal_range(mh->name); - for (ModeWatchIter i = itpair.first; i != itpair.second; ++i) + std::pair itpair = modewatchermap.equal_range(mh->name); + for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i) { ModeWatcher* mw = i->second; if (mw->GetModeType() == type) @@ -316,8 +293,8 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool char* disabled = (type == MODETYPE_CHANNEL) ? ServerInstance->Config->DisabledCModes : ServerInstance->Config->DisabledUModes; if (disabled[modechar - 'A']) { - user->WriteNumeric(ERR_NOPRIVILEGES, ":Permission Denied - %s mode %c has been locked by the administrator", - type == MODETYPE_CHANNEL ? "channel" : "user", modechar); + user->WriteNumeric(ERR_NOPRIVILEGES, InspIRCd::Format("Permission Denied - %s mode %c has been locked by the administrator", + type == MODETYPE_CHANNEL ? "channel" : "user", modechar)); return MODEACTION_DENY; } } @@ -327,13 +304,13 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool /* It's an oper only mode, and they don't have access to it. */ if (user->IsOper()) { - user->WriteNumeric(ERR_NOPRIVILEGES, ":Permission Denied - Oper type %s does not have access to set %s mode %c", - user->oper->name.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar); + user->WriteNumeric(ERR_NOPRIVILEGES, InspIRCd::Format("Permission Denied - Oper type %s does not have access to set %s mode %c", + user->oper->name.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar)); } else { - user->WriteNumeric(ERR_NOPRIVILEGES, ":Permission Denied - Only operators may set %s mode %c", - type == MODETYPE_CHANNEL ? "channel" : "user", modechar); + user->WriteNumeric(ERR_NOPRIVILEGES, InspIRCd::Format("Permission Denied - Only operators may set %s mode %c", + type == MODETYPE_CHANNEL ? "channel" : "user", modechar)); } return MODEACTION_DENY; } @@ -348,7 +325,7 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool return ma; itpair = modewatchermap.equal_range(mh->name); - for (ModeWatchIter i = itpair.first; i != itpair.second; ++i) + for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i) { ModeWatcher* mw = i->second; if (mw->GetModeType() == type) @@ -358,60 +335,15 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool return MODEACTION_ALLOW; } -void ModeParser::Process(const std::vector& parameters, User* user, ModeProcessFlag flags) +void ModeParser::ModeParamsToChangeList(User* user, ModeType type, const std::vector& parameters, Modes::ChangeList& changelist, unsigned int beginindex, unsigned int endindex) { - const std::string& target = parameters[0]; - Channel* targetchannel = ServerInstance->FindChan(target); - User* targetuser = NULL; - if (!targetchannel) - { - if (IS_LOCAL(user)) - targetuser = ServerInstance->FindNickOnly(target); - else - targetuser = ServerInstance->FindNick(target); - } - ModeType type = targetchannel ? MODETYPE_CHANNEL : MODETYPE_USER; - - LastParse.clear(); - LastParseTranslate.clear(); - LastChangeList.clear(); + if (endindex > parameters.size()) + endindex = parameters.size(); - if ((!targetchannel) && ((!targetuser) || (IS_SERVER(targetuser)))) - { - user->WriteNumeric(ERR_NOSUCHNICK, "%s :No such nick/channel", target.c_str()); - return; - } - if (parameters.size() == 1) - { - this->DisplayCurrentModes(user, targetuser, targetchannel, target.c_str()); - return; - } - - ModResult MOD_RESULT; - FIRST_MOD_RESULT(OnPreMode, MOD_RESULT, (user, targetuser, targetchannel, parameters)); - - bool SkipAccessChecks = false; - - if (!IS_LOCAL(user) || MOD_RESULT == MOD_RES_ALLOW) - SkipAccessChecks = true; - else if (MOD_RESULT == MOD_RES_DENY) - return; - - if (targetuser && !SkipAccessChecks && user != targetuser) - { - user->WriteNumeric(ERR_USERSDONTMATCH, ":Can't change mode for other users"); - return; - } - - const std::string& mode_sequence = parameters[1]; - - std::string output_mode; - std::string output_parameters; - LastParseTranslate.push_back(TR_TEXT); + const std::string& mode_sequence = parameters[beginindex]; bool adding = true; - char output_pm = '\0'; // current output state, '+' or '-' - unsigned int param_at = 2; + unsigned int param_at = beginindex+1; for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++) { @@ -426,53 +358,110 @@ void ModeParser::Process(const std::vector& parameters, User* user, if (!mh) { /* No mode handler? Unknown mode character then. */ - user->WriteNumeric(type == MODETYPE_CHANNEL ? ERR_UNKNOWNMODE : ERR_UNKNOWNSNOMASK, "%c :is unknown mode char to me", modechar); + user->WriteNumeric(type == MODETYPE_CHANNEL ? ERR_UNKNOWNMODE : ERR_UNKNOWNSNOMASK, modechar, "is unknown mode char to me"); continue; } std::string parameter; - int pcnt = mh->GetNumParams(adding); - if (pcnt && param_at == parameters.size()) - { - /* No parameter, continue to the next mode */ - mh->OnParameterMissing(user, targetuser, targetchannel); - continue; - } - else if (pcnt) - { + if (mh->GetNumParams(adding) && param_at < endindex) parameter = parameters[param_at++]; - /* Make sure the user isn't trying to slip in an invalid parameter */ - if ((parameter.find(':') == 0) || (parameter.rfind(' ') != std::string::npos)) + + changelist.push(mh, adding, parameter); + } +} + +static bool IsModeParamValid(User* user, Channel* targetchannel, User* targetuser, const Modes::Change& item) +{ + // An empty parameter is never acceptable + if (item.param.empty()) + { + item.mh->OnParameterMissing(user, targetuser, targetchannel); + return false; + } + + // The parameter cannot begin with a ':' character or contain a space + if ((item.param[0] == ':') || (item.param.find(' ') != std::string::npos)) + return false; + + return true; +} + +// Returns true if we should apply a merged mode, false if we should skip it +static bool ShouldApplyMergedMode(Channel* chan, Modes::Change& item) +{ + ModeHandler* mh = item.mh; + if ((!chan) || (!chan->IsModeSet(mh)) || (mh->IsListMode())) + // Mode not set here or merge is not applicable, apply the incoming mode + return true; + + // Mode handler decides + std::string ours = chan->GetModeParameter(mh); + return mh->ResolveModeConflict(item.param, ours, chan); +} + +void ModeParser::Process(User* user, Channel* targetchannel, User* targetuser, Modes::ChangeList& changelist, ModeProcessFlag flags) +{ + // Call ProcessSingle until the entire list is processed, but at least once to ensure + // LastParse and LastChangeList are cleared + unsigned int processed = 0; + do + { + unsigned int n = ProcessSingle(user, targetchannel, targetuser, changelist, flags, processed); + processed += n; + } + while (processed < changelist.size()); +} + +unsigned int ModeParser::ProcessSingle(User* user, Channel* targetchannel, User* targetuser, Modes::ChangeList& changelist, ModeProcessFlag flags, unsigned int beginindex) +{ + LastParse.clear(); + LastChangeList.clear(); + + unsigned int modes_processed = 0; + std::string output_mode; + std::string output_parameters; + + char output_pm = '\0'; // current output state, '+' or '-' + Modes::ChangeList::List& list = changelist.getlist(); + for (Modes::ChangeList::List::iterator i = list.begin()+beginindex; i != list.end(); ++i) + { + modes_processed++; + + Modes::Change& item = *i; + ModeHandler* mh = item.mh; + + // If the mode is supposed to have a parameter then we first take a look at item.param + // and, if we were asked to, also handle mode merges now + if (mh->GetNumParams(item.adding)) + { + // Skip the mode if the parameter does not pass basic validation + if (!IsModeParamValid(user, targetchannel, targetuser, item)) + continue; + + // If this is a merge and we won we don't apply this mode + if ((flags & MODE_MERGE) && (!ShouldApplyMergedMode(targetchannel, item))) continue; - if ((flags & MODE_MERGE) && targetchannel && targetchannel->IsModeSet(mh) && !mh->IsListMode()) - { - std::string ours = targetchannel->GetModeParameter(mh); - if (!mh->ResolveModeConflict(parameter, ours, targetchannel)) - /* we won the mode merge, don't apply this mode */ - continue; - } } - ModeAction ma = TryMode(user, targetuser, targetchannel, adding, modechar, parameter, SkipAccessChecks); + ModeAction ma = TryMode(user, targetuser, targetchannel, item, (!(flags & MODE_CHECKACCESS))); if (ma != MODEACTION_ALLOW) continue; - char needed_pm = adding ? '+' : '-'; + char needed_pm = item.adding ? '+' : '-'; if (needed_pm != output_pm) { output_pm = needed_pm; output_mode.append(1, output_pm); } - output_mode.append(1, modechar); + output_mode.push_back(mh->GetModeChar()); - if (pcnt) + if (!item.param.empty()) { output_parameters.push_back(' '); - output_parameters.append(parameter); - LastParseTranslate.push_back(mh->GetTranslateType()); + output_parameters.append(item.param); } - LastChangeList.push(mh, adding, parameter); + LastChangeList.push(mh, item.adding, item.param); if ((output_mode.length() + output_parameters.length() > 450) || (output_mode.length() > 100) @@ -497,54 +486,23 @@ void ModeParser::Process(const std::vector& parameters, User* user, FOREACH_MOD(OnMode, (user, targetuser, targetchannel, LastChangeList, flags, output_mode)); } - else if (targetchannel && parameters.size() == 2) - { - /* Special case for displaying the list for listmodes, - * e.g. MODE #chan b, or MODE #chan +b without a parameter - */ - this->DisplayListModes(user, targetchannel, mode_sequence); - } + + return modes_processed; } -void ModeParser::DisplayListModes(User* user, Channel* chan, const std::string& mode_sequence) +void ModeParser::ShowListModeList(User* user, Channel* chan, ModeHandler* mh) { - seq++; - - for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++) { - unsigned char mletter = *letter; - if (mletter == '+') - continue; - - /* Ensure the user doesnt request the same mode twice, - * so they cant flood themselves off out of idiocy. - */ - if (sent[mletter] == seq) - continue; - - sent[mletter] = seq; - - ModeHandler *mh = this->FindMode(mletter, MODETYPE_CHANNEL); - - if (!mh || !mh->IsListMode()) - return; - ModResult MOD_RESULT; FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, mh, "", true)); if (MOD_RESULT == MOD_RES_DENY) - continue; + return; bool display = true; - if (!user->HasPrivPermission("channels/auspex") && ServerInstance->Config->HideModeLists[mletter] && (chan->GetPrefixValue(user) < HALFOP_VALUE)) - { - user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s :You do not have access to view the +%c list", - chan->name.c_str(), mletter); - display = false; - } // Ask mode watchers whether it's OK to show the list - std::pair itpair = modewatchermap.equal_range(mh->name); - for (ModeWatchIter i = itpair.first; i != itpair.second; ++i) + std::pair itpair = modewatchermap.equal_range(mh->name); + for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i) { ModeWatcher* mw = i->second; if (mw->GetModeType() == MODETYPE_CHANNEL) @@ -707,16 +665,9 @@ bool ModeParser::DelMode(ModeHandler* mh) Channel* chan = i->second; ++i; - irc::modestacker stack(false); - mh->RemoveMode(chan, stack); - - std::vector stackresult; - stackresult.push_back(chan->name); - while (stack.GetStackedLine(stackresult)) - { - this->Process(stackresult, ServerInstance->FakeClient, MODE_LOCALONLY); - stackresult.erase(stackresult.begin() + 1, stackresult.end()); - } + Modes::ChangeList changelist; + mh->RemoveMode(chan, changelist); + this->Process(ServerInstance->FakeClient, chan, NULL, changelist, MODE_LOCALONLY); } } break; @@ -844,7 +795,7 @@ std::string ModeParser::BuildPrefixes(bool lettersAndModes) { std::string mletters; std::string mprefixes; - std::map > prefixes; + insp::flat_map > prefixes; const PrefixModeList& list = GetPrefixModes(); for (PrefixModeList::const_iterator i = list.begin(); i != list.end(); ++i) @@ -854,7 +805,7 @@ std::string ModeParser::BuildPrefixes(bool lettersAndModes) prefixes[pm->GetPrefixRank()] = std::make_pair(pm->GetPrefix(), pm->GetModeChar()); } - for(std::map >::reverse_iterator n = prefixes.rbegin(); n != prefixes.rend(); n++) + for (insp::flat_map >::reverse_iterator n = prefixes.rbegin(); n != prefixes.rend(); ++n) { mletters = mletters + n->second.first; mprefixes = mprefixes + n->second.second; @@ -870,8 +821,8 @@ void ModeParser::AddModeWatcher(ModeWatcher* mw) bool ModeParser::DelModeWatcher(ModeWatcher* mw) { - std::pair itpair = modewatchermap.equal_range(mw->GetModeName()); - for (ModeWatchIter i = itpair.first; i != itpair.second; ++i) + std::pair itpair = modewatchermap.equal_range(mw->GetModeName()); + for (ModeWatcherMap::iterator i = itpair.first; i != itpair.second; ++i) { if (i->second == mw) { @@ -888,33 +839,31 @@ void ModeHandler::RemoveMode(User* user) // Remove the mode if it's set on the user if (user->IsModeSet(this->GetModeChar())) { - std::vector parameters; - parameters.push_back(user->nick); - parameters.push_back("-"); - parameters[1].push_back(this->GetModeChar()); - ServerInstance->Modes->Process(parameters, ServerInstance->FakeClient, ModeParser::MODE_LOCALONLY); + Modes::ChangeList changelist; + changelist.push_remove(this); + ServerInstance->Modes->Process(ServerInstance->FakeClient, NULL, user, changelist, ModeParser::MODE_LOCALONLY); } } -void ModeHandler::RemoveMode(Channel* channel, irc::modestacker& stack) +void ModeHandler::RemoveMode(Channel* channel, Modes::ChangeList& changelist) { if (channel->IsModeSet(this)) { if (this->GetNumParams(false)) // Removing this mode requires a parameter - stack.Push(this->GetModeChar(), channel->GetModeParameter(this)); + changelist.push_remove(this, channel->GetModeParameter(this)); else - stack.Push(this->GetModeChar()); + changelist.push_remove(this); } } -void PrefixMode::RemoveMode(Channel* chan, irc::modestacker& stack) +void PrefixMode::RemoveMode(Channel* chan, Modes::ChangeList& changelist) { const Channel::MemberMap& userlist = chan->GetUsers(); for (Channel::MemberMap::const_iterator i = userlist.begin(); i != userlist.end(); ++i) { if (i->second->hasMode(this->GetModeChar())) - stack.Push(this->GetModeChar(), i->first->nick); + changelist.push_remove(this, i->first->nick); } } @@ -970,9 +919,6 @@ ModeParser::ModeParser() /* Clear mode handler list */ memset(modehandlers, 0, sizeof(modehandlers)); memset(modehandlersbyid, 0, sizeof(modehandlersbyid)); - - seq = 0; - memset(&sent, 0, sizeof(sent)); } ModeParser::~ModeParser()