void init() override
{
ConfigTagList tags = ServerInstance->Config->ConfTags("customprefix");
for (ConfigIter iter = tags.first; iter != tags.second; ++iter)
{
ConfigTag* tag = iter->second;
const std::string name = tag->getString("name");
if (name.empty())
throw ModuleException("<customprefix:name> must be specified at " + tag->getTagLocation());
if (tag->getBool("change"))
{
ModeHandler* mh = ServerInstance->Modes.FindMode(name, MODETYPE_CHANNEL);
if (!mh)
throw ModuleException("<customprefix:change> specified for a non-existent mode at " + tag->getTagLocation());
PrefixMode* pm = mh->IsPrefixMode();
if (!pm)
throw ModuleException("<customprefix:change> specified for a non-prefix mode at " + tag->getTagLocation());
unsigned long rank = tag->getUInt("rank", pm->GetPrefixRank(), 0, UINT_MAX);
unsigned long setrank = tag->getUInt("ranktoset", pm->GetLevelRequired(true), rank, UINT_MAX);
unsigned long unsetrank = tag->getUInt("ranktounset", pm->GetLevelRequired(false), setrank, UINT_MAX);
bool depriv = tag->getBool("depriv", pm->CanSelfRemove());
pm->Update(rank, setrank, unsetrank, depriv);
ServerInstance->Logs.Log(MODNAME, LOG_DEBUG, "Changed the %s prefix: depriv=%u rank=%u ranktoset=%u ranktounset=%u",
pm->name.c_str(), pm->CanSelfRemove(), pm->GetPrefixRank(), pm->GetLevelRequired(true), pm->GetLevelRequired(false));
continue;
}
const std::string letter = tag->getString("letter");
if (letter.length() != 1)
throw ModuleException("<customprefix:letter> must be set to a mode character at " + tag->getTagLocation());
const std::string prefix = tag->getString("prefix");
if (prefix.length() != 1)
throw ModuleException("<customprefix:prefix> must be set to a mode prefix at " + tag->getTagLocation());
try
{
CustomPrefixMode* mh = new CustomPrefixMode(this, name, letter[0], prefix[0], tag);
modes.push_back(mh);
ServerInstance->Modules.AddService(*mh);
}
catch (ModuleException& e)
{
throw ModuleException(e.GetReason() + " (while creating mode from " + tag->getTagLocation() + ")");
}
}
}
ModResult Call(User* user, Channel* chan, const std::string& restriction)
{
unsigned int mypfx = chan->GetPrefixValue(user);
std::string minmode;
ListModeBase::ModeList* list = ec.GetList(chan);
if (list)
{
for (ListModeBase::ModeList::iterator i = list->begin(); i != list->end(); ++i)
{
std::string::size_type pos = (*i).mask.find(':');
if (pos == std::string::npos)
continue;
if ((*i).mask.substr(0,pos) == restriction)
minmode = (*i).mask.substr(pos + 1);
}
}
PrefixMode* mh = FindMode(minmode);
if (mh && mypfx >= mh->GetPrefixRank())
return MOD_RES_ALLOW;
if (mh || minmode == "*")
return MOD_RES_DENY;
return ServerInstance->HandleOnCheckExemption.Call(user, chan, restriction);
}
/* returns a list of DIRECT servernames for a specific channel */
void SpanningTreeUtilities::GetListOfServersForChannel(Channel* c, TreeSocketSet& list, char status, const CUList& exempt_list)
{
unsigned int minrank = 0;
if (status)
{
PrefixMode* mh = ServerInstance->Modes->FindPrefix(status);
if (mh)
minrank = mh->GetPrefixRank();
}
const UserMembList *ulist = c->GetUsers();
for (UserMembCIter i = ulist->begin(); i != ulist->end(); i++)
{
if (IS_LOCAL(i->first))
continue;
if (minrank && i->second->getRank() < minrank)
continue;
if (exempt_list.find(i->first) == exempt_list.end())
{
TreeServer* best = TreeServer::Get(i->first);
list.insert(best->GetSocket());
}
}
return;
}
std::string ModeParser::BuildPrefixes(bool lettersAndModes)
{
std::string mletters;
std::string mprefixes;
std::map<int,std::pair<char,char> > prefixes;
const PrefixModeList& list = GetPrefixModes();
for (PrefixModeList::const_iterator i = list.begin(); i != list.end(); ++i)
{
PrefixMode* pm = *i;
if (pm->GetPrefix())
prefixes[pm->GetPrefixRank()] = std::make_pair(pm->GetPrefix(), pm->GetModeChar());
}
for(std::map<int,std::pair<char,char> >::reverse_iterator n = prefixes.rbegin(); n != prefixes.rend(); n++)
{
mletters = mletters + n->second.first;
mprefixes = mprefixes + n->second.second;
}
return lettersAndModes ? "(" + mprefixes + ")" + mletters : mletters;
}
ModResult OnCheckExemptionHandler::Call(User* user, Channel* chan, const std::string& restriction)
{
unsigned int mypfx = chan->GetPrefixValue(user);
char minmode = 0;
std::string current;
irc::spacesepstream defaultstream(ServerInstance->Config->ConfValue("options")->getString("exemptchanops"));
while (defaultstream.GetToken(current))
{
std::string::size_type pos = current.find(':');
if (pos == std::string::npos)
continue;
if (!current.compare(0, pos, restriction))
minmode = current[pos+1];
}
PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(minmode);
if (mh && mypfx >= mh->GetPrefixRank())
return MOD_RES_ALLOW;
if (mh || minmode == '*')
return MOD_RES_DENY;
return MOD_RES_PASSTHRU;
}
CmdResult Handle(User* user, const Params& parameters) override
{
ModeHandler* mh;
Channel* chan = ServerInstance->FindChan(parameters[0]);
char modeletter = parameters[1][0];
if (chan == NULL)
{
user->WriteNotice("The channel " + parameters[0] + " does not exist.");
return CMD_FAILURE;
}
mh = ServerInstance->Modes.FindMode(modeletter, MODETYPE_CHANNEL);
if (mh == NULL || parameters[1].size() > 1)
{
user->WriteNotice(parameters[1] + " is not a valid channel mode.");
return CMD_FAILURE;
}
if (chan->GetPrefixValue(user) < mh->GetLevelRequired(false))
{
user->WriteNotice("You do not have access to unset " + ConvToStr(modeletter) + " on " + chan->name + ".");
return CMD_FAILURE;
}
std::string pattern = parameters.size() > 2 ? parameters[2] : "*";
PrefixMode* pm;
ListModeBase* lm;
ListModeBase::ModeList* ml;
Modes::ChangeList changelist;
if ((pm = mh->IsPrefixMode()))
{
// As user prefix modes don't have a GetList() method, let's iterate through the channel's users.
const Channel::MemberMap& users = chan->GetUsers();
for (Channel::MemberMap::const_iterator it = users.begin(); it != users.end(); ++it)
{
if (!InspIRCd::Match(it->first->nick, pattern))
continue;
if (it->second->HasMode(pm) && !((it->first == user) && (pm->GetPrefixRank() > VOICE_VALUE)))
changelist.push_remove(mh, it->first->nick);
}
}
else if ((lm = mh->IsListModeBase()) && ((ml = lm->GetList(chan)) != NULL))
{
for (ListModeBase::ModeList::iterator it = ml->begin(); it != ml->end(); ++it)
{
if (!InspIRCd::Match(it->mask, pattern))
continue;
changelist.push_remove(mh, it->mask);
}
}
else
{
if (chan->IsModeSet(mh))
changelist.push_remove(mh);
}
ServerInstance->Modes.Process(user, chan, NULL, changelist);
return CMD_SUCCESS;
}
ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool adding, const unsigned char modechar,
std::string ¶meter, bool SkipACL)
{
ModeType type = chan ? MODETYPE_CHANNEL : MODETYPE_USER;
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));
if (IS_LOCAL(user) && (MOD_RESULT == MOD_RES_DENY))
return MODEACTION_DENY;
if (chan && !SkipACL && (MOD_RESULT != MOD_RES_ALLOW))
{
MOD_RESULT = mh->AccessCheck(user, chan, parameter, adding);
if (MOD_RESULT == MOD_RES_DENY)
return MODEACTION_DENY;
if (MOD_RESULT == MOD_RES_PASSTHRU)
{
unsigned int neededrank = mh->GetLevelRequired();
/* Compare our rank on the channel against the rank of the required prefix,
* allow if >= ours. Because mIRC and xchat throw a tizz if the modes shown
* in NAMES(X) are not in rank order, we know the most powerful mode is listed
* first, so we don't need to iterate, we just look up the first instead.
*/
unsigned int ourrank = chan->GetPrefixValue(user);
if (ourrank < neededrank)
{
PrefixMode* neededmh = NULL;
for(char c='A'; c <= 'z'; c++)
{
PrefixMode* privmh = FindPrefixMode(c);
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;
}
}
}
// Ask mode watchers whether this mode change is OK
std::pair<ModeWatchIter, ModeWatchIter> itpair = modewatchermap.equal_range(mh->name);
for (ModeWatchIter i = itpair.first; i != itpair.second; ++i)
{
ModeWatcher* mw = i->second;
if (mw->GetModeType() == type)
{
if (!mw->BeforeMode(user, targetuser, chan, parameter, adding))
return MODEACTION_DENY;
// A module whacked the parameter completely, and there was one. Abort.
if (pcnt && parameter.empty())
return MODEACTION_DENY;
}
}
if (IS_LOCAL(user) && !user->IsOper())
{
char* disabled = (type == MODETYPE_CHANNEL) ? ServerInstance->Config->DisabledCModes : ServerInstance->Config->DisabledUModes;
if (disabled[modechar - 'A'])
{
user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - %s mode %c has been locked by the administrator",
user->nick.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
return MODEACTION_DENY;
}
}
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 (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(), user->oper->name.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
}
else
{
user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - Only operators may set %s mode %c",
user->nick.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
}
return MODEACTION_DENY;
}
/* Call the handler for the mode */
ModeAction ma = mh->OnModeChange(user, targetuser, chan, parameter, adding);
if (pcnt && parameter.empty())
return MODEACTION_DENY;
if (ma != MODEACTION_ALLOW)
return ma;
if ((!mh->IsListMode()) && (mh->GetNumParams(true)) && (chan))
chan->SetModeParam(mh, (adding ? parameter : ""));
itpair = modewatchermap.equal_range(mh->name);
for (ModeWatchIter i = itpair.first; i != itpair.second; ++i)
{
ModeWatcher* mw = i->second;
if (mw->GetModeType() == type)
mw->AfterMode(user, targetuser, chan, parameter, adding);
}
return MODEACTION_ALLOW;
}
CmdResult Handle(const std::vector<std::string> ¶meters, User *user)
{
ModeHandler* mh;
Channel* chan = ServerInstance->FindChan(parameters[0]);
char modeletter = parameters[1][0];
if (chan == NULL)
{
user->WriteNotice("The channel " + parameters[0] + " does not exist.");
return CMD_FAILURE;
}
mh = ServerInstance->Modes->FindMode(modeletter, MODETYPE_CHANNEL);
if (mh == NULL || parameters[1].size() > 1)
{
user->WriteNotice(parameters[1] + " is not a valid channel mode.");
return CMD_FAILURE;
}
if (chan->GetPrefixValue(user) < mh->GetLevelRequired())
{
user->WriteNotice("You do not have access to unset " + ConvToStr(modeletter) + " on " + chan->name + ".");
return CMD_FAILURE;
}
std::string pattern = parameters.size() > 2 ? parameters[2] : "*";
PrefixMode* pm;
ListModeBase* lm;
ListModeBase::ModeList* ml;
irc::modestacker modestack(false);
if ((pm = mh->IsPrefixMode()))
{
// As user prefix modes don't have a GetList() method, let's iterate through the channel's users.
const Channel::MemberMap& users = chan->GetUsers();
for (Channel::MemberMap::const_iterator it = users.begin(); it != users.end(); ++it)
{
if (!InspIRCd::Match(it->first->nick, pattern))
continue;
if (it->second->hasMode(modeletter) && !((it->first == user) && (pm->GetPrefixRank() > VOICE_VALUE)))
modestack.Push(modeletter, it->first->nick);
}
}
else if ((lm = mh->IsListModeBase()) && ((ml = lm->GetList(chan)) != NULL))
{
for (ListModeBase::ModeList::iterator it = ml->begin(); it != ml->end(); ++it)
{
if (!InspIRCd::Match(it->mask, pattern))
continue;
modestack.Push(modeletter, it->mask);
}
}
else
{
if (chan->IsModeSet(mh))
modestack.Push(modeletter);
}
parameterlist stackresult;
stackresult.push_back(chan->name);
while (modestack.GetStackedLine(stackresult))
{
ServerInstance->Modes->Process(stackresult, user);
stackresult.erase(stackresult.begin() + 1, stackresult.end());
}
return CMD_SUCCESS;
}
