void ModeParser::AddMode(ModeHandler* mh)
{
/* 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'))
throw ModuleException("Invalid letter for mode " + mh->name);
/* A mode prefix of ',' is not acceptable, it would f**k up server to server.
* A mode prefix of ':' will f**k up both server to server, and client to server.
* A mode prefix of '#' will mess up /whois and /privmsg
*/
PrefixMode* pm = mh->IsPrefixMode();
if (pm)
{
if ((pm->GetPrefix() > 126) || (pm->GetPrefix() == ',') || (pm->GetPrefix() == ':') || (pm->GetPrefix() == '#'))
throw ModuleException("Invalid prefix for mode " + mh->name);
if (FindPrefix(pm->GetPrefix()))
throw ModuleException("Prefix already exists for mode " + mh->name);
}
ModeHandler*& slot = modehandlers[mh->GetModeType()][mh->GetModeChar()-65];
if (slot)
throw ModuleException("Letter is already in use for mode " + mh->name);
// The mode needs an id if it is either a user mode, a simple mode (flag) or a parameter mode.
// Otherwise (for listmodes and prefix modes) the id remains MODEID_MAX, which is invalid.
ModeHandler::Id modeid = MODEID_MAX;
if ((mh->GetModeType() == MODETYPE_USER) || (mh->IsParameterMode()) || (!mh->IsListMode()))
modeid = AllocateModeId(mh->GetModeType());
if (!modehandlersbyname[mh->GetModeType()].insert(std::make_pair(mh->name, mh)).second)
throw ModuleException("Mode name already in use: " + mh->name);
// Everything is fine, add the mode
// If we allocated an id for this mode then save it and put the mode handler into the slot
if (modeid != MODEID_MAX)
{
mh->modeid = modeid;
modehandlersbyid[mh->GetModeType()][modeid] = mh;
}
slot = mh;
if (pm)
mhlist.prefix.push_back(pm);
else if (mh->IsListModeBase())
mhlist.list.push_back(mh->IsListModeBase());
RecreateModeListFor004Numeric();
}
CmdResult Handle(User* user, const Params& parameters) override
{
Channel* channel = ServerInstance->FindChan(parameters[0]);
if (!channel)
{
user->WriteNumeric(Numerics::NoSuchChannel(parameters[0]));
return CMD_FAILURE;
}
unsigned int cm = channel->GetPrefixValue(user);
if (cm < HALFOP_VALUE)
{
user->WriteNumeric(ERR_CHANOPRIVSNEEDED, channel->name, "You do not have permission to set bans on this channel");
return CMD_FAILURE;
}
TimedBan T;
unsigned long duration;
if (!InspIRCd::Duration(parameters[1], duration))
{
user->WriteNotice("Invalid ban time");
return CMD_FAILURE;
}
unsigned long expire = duration + ServerInstance->Time();
std::string mask = parameters[2];
bool isextban = ((mask.size() > 2) && (mask[1] == ':'));
if (!isextban && !InspIRCd::IsValidMask(mask))
mask.append("!*@*");
if (IsBanSet(channel, mask))
{
user->WriteNotice("Ban already set");
return CMD_FAILURE;
}
Modes::ChangeList setban;
setban.push_add(ServerInstance->Modes.FindMode('b', MODETYPE_CHANNEL), mask);
// Pass the user (instead of ServerInstance->FakeClient) to ModeHandler::Process() to
// make it so that the user sets the mode themselves
ServerInstance->Modes.Process(user, channel, NULL, setban);
if (ServerInstance->Modes.GetLastChangeList().empty())
{
user->WriteNotice("Invalid ban mask");
return CMD_FAILURE;
}
T.mask = mask;
T.expire = expire + (IS_REMOTE(user) ? 5 : 0);
T.chan = channel;
TimedBanList.push_back(T);
const std::string addban = user->nick + " added a timed ban on " + mask + " lasting for " + InspIRCd::DurationString(duration) + ".";
// If halfop is loaded, send notice to halfops and above, otherwise send to ops and above
PrefixMode* mh = ServerInstance->Modes.FindPrefixMode('h');
char pfxchar = (mh && mh->name == "halfop") ? mh->GetPrefix() : '@';
ClientProtocol::Messages::Privmsg notice(ServerInstance->FakeClient, channel, addban, MSG_NOTICE);
channel->Write(ServerInstance->GetRFCEvents().privmsg, notice, pfxchar);
ServerInstance->PI->SendChannelNotice(channel, pfxchar, addban);
return CMD_SUCCESS;
}
void OnBackgroundTimer(time_t curtime) override
{
timedbans expired;
for (timedbans::iterator i = TimedBanList.begin(); i != TimedBanList.end();)
{
if (curtime > i->expire)
{
expired.push_back(*i);
i = TimedBanList.erase(i);
}
else
++i;
}
for (timedbans::iterator i = expired.begin(); i != expired.end(); i++)
{
std::string mask = i->mask;
Channel* cr = i->chan;
{
const std::string expiry = "*** Timed ban on " + cr->name + " expired.";
// If halfop is loaded, send notice to halfops and above, otherwise send to ops and above
PrefixMode* mh = ServerInstance->Modes.FindPrefixMode('h');
char pfxchar = (mh && mh->name == "halfop") ? mh->GetPrefix() : '@';
ClientProtocol::Messages::Privmsg notice(ClientProtocol::Messages::Privmsg::nocopy, ServerInstance->FakeClient, cr, expiry, MSG_NOTICE);
cr->Write(ServerInstance->GetRFCEvents().privmsg, notice, pfxchar);
ServerInstance->PI->SendChannelNotice(cr, pfxchar, expiry);
Modes::ChangeList setban;
setban.push_remove(ServerInstance->Modes.FindMode('b', MODETYPE_CHANNEL), mask);
ServerInstance->Modes.Process(ServerInstance->FakeClient, cr, NULL, setban);
}
}
}
bool ModeParser::AddMode(ModeHandler* mh)
{
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'))
return false;
/* A mode prefix of ',' is not acceptable, it would f**k up server to server.
* A mode prefix of ':' will f**k up both server to server, and client to server.
* A mode prefix of '#' will mess up /whois and /privmsg
*/
PrefixMode* pm = mh->IsPrefixMode();
if (pm)
{
if ((pm->GetPrefix() > 126) || (pm->GetPrefix() == ',') || (pm->GetPrefix() == ':') || (pm->GetPrefix() == '#'))
return false;
if (FindPrefix(pm->GetPrefix()))
return false;
}
mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
pos = (mh->GetModeChar()-65) | mask;
if (modehandlers[pos])
return false;
// Everything is fine, add the mode
modehandlers[pos] = mh;
if (pm)
mhlist.prefix.push_back(pm);
else if (mh->IsListModeBase())
mhlist.list.push_back(mh->IsListModeBase());
RecreateModeListFor004Numeric();
return true;
}
PrefixMode* ModeParser::FindPrefix(unsigned const char pfxletter)
{
const PrefixModeList& list = GetPrefixModes();
for (PrefixModeList::const_iterator i = list.begin(); i != list.end(); ++i)
{
PrefixMode* pm = *i;
if (pm->GetPrefix() == pfxletter)
return pm;
}
return NULL;
}
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;
}
std::string ModeParser::GiveModeList(ModeMasks m)
{
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++)
{
unsigned char pos = (mode-65) | m;
/* One parameter when adding */
if (modehandlers[pos])
{
if (modehandlers[pos]->GetNumParams(true))
{
PrefixMode* pm = modehandlers[pos]->IsPrefixMode();
if ((modehandlers[pos]->IsListMode()) && ((!pm) || (pm->GetPrefix() == 0)))
{
type1 += modehandlers[pos]->GetModeChar();
}
else
{
/* ... and one parameter when removing */
if (modehandlers[pos]->GetNumParams(false))
{
/* But not a list mode */
if (!pm)
{
type2 += modehandlers[pos]->GetModeChar();
}
}
else
{
/* No parameters when removing */
type3 += modehandlers[pos]->GetModeChar();
}
}
}
else
{
type4 += modehandlers[pos]->GetModeChar();
}
}
}
return type1 + "," + type2 + "," + type3 + "," + type4;
}
/** Handle /INVITE
*/
CmdResult CommandInvite::Handle (const std::vector<std::string>& parameters, User *user)
{
ModResult MOD_RESULT;
if (parameters.size() >= 2)
{
User* u;
if (IS_LOCAL(user))
u = ServerInstance->FindNickOnly(parameters[0]);
else
u = ServerInstance->FindNick(parameters[0]);
Channel* c = ServerInstance->FindChan(parameters[1]);
time_t timeout = 0;
if (parameters.size() >= 3)
{
if (IS_LOCAL(user))
timeout = ServerInstance->Time() + InspIRCd::Duration(parameters[2]);
else if (parameters.size() > 3)
timeout = ConvToInt(parameters[3]);
}
if ((!c) || (!u) || (u->registered != REG_ALL))
{
user->WriteNumeric(ERR_NOSUCHNICK, "%s :No such nick/channel", c ? parameters[0].c_str() : parameters[1].c_str());
return CMD_FAILURE;
}
// Verify channel timestamp if the INVITE is coming from a remote server
if (!IS_LOCAL(user))
{
// Remote INVITE commands must carry a channel timestamp
if (parameters.size() < 3)
return CMD_INVALID;
// Drop the invite if our channel TS is lower
time_t RemoteTS = ConvToInt(parameters[2]);
if (c->age < RemoteTS)
return CMD_FAILURE;
}
if ((IS_LOCAL(user)) && (!c->HasUser(user)))
{
user->WriteNumeric(ERR_NOTONCHANNEL, "%s :You're not on that channel!", c->name.c_str());
return CMD_FAILURE;
}
if (c->HasUser(u))
{
user->WriteNumeric(ERR_USERONCHANNEL, "%s %s :is already on channel", u->nick.c_str(), c->name.c_str());
return CMD_FAILURE;
}
FIRST_MOD_RESULT(OnUserPreInvite, MOD_RESULT, (user,u,c,timeout));
if (MOD_RESULT == MOD_RES_DENY)
{
return CMD_FAILURE;
}
else if (MOD_RESULT == MOD_RES_PASSTHRU)
{
if (IS_LOCAL(user))
{
unsigned int rank = c->GetPrefixValue(user);
if (rank < HALFOP_VALUE)
{
// Check whether halfop mode is available and phrase error message accordingly
ModeHandler* mh = ServerInstance->Modes->FindMode('h', MODETYPE_CHANNEL);
user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s :You must be a channel %soperator",
c->name.c_str(), (mh && mh->name == "halfop" ? "half-" : ""));
return CMD_FAILURE;
}
}
}
if (IS_LOCAL(u))
{
Invitation::Create(c, IS_LOCAL(u), timeout);
u->WriteFrom(user,"INVITE %s :%s",u->nick.c_str(),c->name.c_str());
}
if (IS_LOCAL(user))
user->WriteNumeric(RPL_INVITING, "%s %s", u->nick.c_str(),c->name.c_str());
if (ServerInstance->Config->AnnounceInvites != ServerConfig::INVITE_ANNOUNCE_NONE)
{
char prefix;
switch (ServerInstance->Config->AnnounceInvites)
{
case ServerConfig::INVITE_ANNOUNCE_OPS:
{
prefix = '@';
break;
}
case ServerConfig::INVITE_ANNOUNCE_DYNAMIC:
{
PrefixMode* mh = ServerInstance->Modes->FindPrefixMode('h');
prefix = (mh && mh->name == "halfop" ? mh->GetPrefix() : '@');
break;
}
default:
{
prefix = 0;
break;
}
}
c->WriteAllExceptSender(user, true, prefix, "NOTICE %s :*** %s invited %s into the channel", c->name.c_str(), user->nick.c_str(), u->nick.c_str());
}
FOREACH_MOD(OnUserInvite, (user,u,c,timeout));
}
else if (IS_LOCAL(user))
{
// pinched from ircu - invite with not enough parameters shows channels
// youve been invited to but haven't joined yet.
InviteList& il = IS_LOCAL(user)->GetInviteList();
for (InviteList::const_iterator i = il.begin(); i != il.end(); ++i)
{
user->WriteNumeric(RPL_INVITELIST, ":%s", (*i)->chan->name.c_str());
}
user->WriteNumeric(RPL_ENDOFINVITELIST, ":End of INVITE list");
}
return CMD_SUCCESS;
}
