anope/src/messages.cpp

503 lines
14 KiB
C++

/* Common message handlers
*
* (C) 2003-2022 Anope Team
* Contact us at team@anope.org
*
* Please read COPYING and README for further details.
*
* Based on the original code of Epona by Lara.
* Based on the original code of Services by Andy Church.
*/
#include "services.h"
#include "modules.h"
#include "users.h"
#include "protocol.h"
#include "config.h"
#include "uplink.h"
#include "opertype.h"
#include "messages.h"
#include "servers.h"
#include "channels.h"
using namespace Message;
void Away::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
const Anope::string &msg = !params.empty() ? params[0] : "";
FOREACH_MOD(OnUserAway, (source.GetUser(), msg));
if (!msg.empty())
Log(source.GetUser(), "away") << "is now away: " << msg;
else
Log(source.GetUser(), "away") << "is no longer away";
}
void Capab::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
if (params.size() == 1)
{
spacesepstream sep(params[0]);
Anope::string token;
while (sep.GetToken(token))
Servers::Capab.insert(token);
}
else
for (unsigned i = 0; i < params.size(); ++i)
Servers::Capab.insert(params[i]);
}
void Error::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
Log(LOG_TERMINAL) << "ERROR: " << params[0];
Anope::QuitReason = "Received ERROR from uplink: " + params[0];
Anope::Quitting = true;
}
void Invite::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
User *targ = User::Find(params[0]);
Channel *c = Channel::Find(params[1]);
if (!targ || targ->server != Me || !c || c->FindUser(targ))
return;
FOREACH_MOD(OnInvite, (source.GetUser(), c, targ));
}
void Join::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
User *user = source.GetUser();
const Anope::string &channels = params[0];
Anope::string channel;
commasepstream sep(channels);
while (sep.GetToken(channel))
{
/* Special case for /join 0 */
if (channel == "0")
{
for (User::ChanUserList::iterator it = user->chans.begin(), it_end = user->chans.end(); it != it_end; )
{
ChanUserContainer *cc = it->second;
Channel *c = cc->chan;
++it;
FOREACH_MOD(OnPrePartChannel, (user, c));
cc->chan->DeleteUser(user);
FOREACH_MOD(OnPartChannel, (user, c, c->name, ""));
}
continue;
}
std::list<SJoinUser> users;
users.push_back(std::make_pair(ChannelStatus(), user));
Channel *chan = Channel::Find(channel);
SJoin(source, channel, chan ? chan->creation_time : Anope::CurTime, "", users);
}
}
void Join::SJoin(MessageSource &source, const Anope::string &chan, time_t ts, const Anope::string &modes, const std::list<SJoinUser> &users)
{
bool created;
Channel *c = Channel::FindOrCreate(chan, created, ts ? ts : Anope::CurTime);
bool keep_their_modes = true;
if (created)
c->syncing = true;
/* Some IRCds do not include a TS */
else if (!ts)
;
/* Our creation time is newer than what the server gave us, so reset the channel to the older time */
else if (c->creation_time > ts)
{
c->creation_time = ts;
c->Reset();
}
/* Their TS is newer, don't accept any modes from them */
else if (ts > c->creation_time)
keep_their_modes = false;
/* Update the modes for the channel */
if (keep_their_modes && !modes.empty())
/* If we are syncing, mlock is checked later in Channel::Sync. It is important to not check it here
* so that Channel::SetCorrectModes can correctly detect the presence of channel mode +r.
*/
c->SetModesInternal(source, modes, ts, !c->syncing);
for (std::list<SJoinUser>::const_iterator it = users.begin(), it_end = users.end(); it != it_end; ++it)
{
const ChannelStatus &status = it->first;
User *u = it->second;
keep_their_modes = ts <= c->creation_time; // OnJoinChannel can call modules which can modify this channel's ts
if (c->FindUser(u))
continue;
/* Add the user to the channel */
c->JoinUser(u, keep_their_modes ? &status : NULL);
/* Check if the user is allowed to join */
if (c->CheckKick(u))
continue;
/* Set whatever modes the user should have, and remove any that
* they aren't allowed to have (secureops etc).
*/
c->SetCorrectModes(u, true);
FOREACH_MOD(OnJoinChannel, (u, c));
}
/* Channel is done syncing */
if (c->syncing)
{
/* Sync the channel (mode lock, topic, etc) */
/* the channel is synced when the netmerge is complete */
Server *src = source.GetServer() ? source.GetServer() : Me;
if (src && src->IsSynced())
{
c->Sync();
if (c->CheckDelete())
c->QueueForDeletion();
}
}
}
void Kick::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
const Anope::string &channel = params[0];
const Anope::string &users = params[1];
const Anope::string &reason = params.size() > 2 ? params[2] : "";
Channel *c = Channel::Find(channel);
if (!c)
return;
Anope::string user;
commasepstream sep(users);
while (sep.GetToken(user))
c->KickInternal(source, user, reason);
}
void Kill::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
User *u = User::Find(params[0]);
BotInfo *bi;
if (!u)
return;
/* Recover if someone kills us. */
if (u->server == Me && (bi = dynamic_cast<BotInfo *>(u)))
{
static time_t last_time = 0;
if (last_time == Anope::CurTime)
{
Anope::QuitReason = "Kill loop detected. Are Services U:Lined?";
Anope::Quitting = true;
return;
}
last_time = Anope::CurTime;
bi->OnKill();
}
else
u->KillInternal(source, params[1]);
}
void Message::Mode::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
Anope::string buf;
for (unsigned i = 1; i < params.size(); ++i)
buf += " " + params[i];
if (IRCD->IsChannelValid(params[0]))
{
Channel *c = Channel::Find(params[0]);
if (c)
c->SetModesInternal(source, buf.substr(1), 0);
}
else
{
User *u = User::Find(params[0]);
if (u)
u->SetModesInternal(source, "%s", buf.substr(1).c_str());
}
}
/* XXX We should cache the file somewhere not open/read/close it on every request */
void MOTD::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
Server *s = Server::Find(params[0]);
if (s != Me)
return;
FILE *f = fopen(Config->GetBlock("serverinfo")->Get<const Anope::string>("motd").c_str(), "r");
if (f)
{
IRCD->SendNumeric(375, source.GetSource(), ":- %s Message of the Day", s->GetName().c_str());
char buf[BUFSIZE];
while (fgets(buf, sizeof(buf), f))
{
buf[strlen(buf) - 1] = 0;
IRCD->SendNumeric(372, source.GetSource(), ":- %s", buf);
}
fclose(f);
IRCD->SendNumeric(376, source.GetSource(), ":End of /MOTD command.");
}
else
IRCD->SendNumeric(422, source.GetSource(), ":- MOTD file not found! Please contact your IRC administrator.");
}
void Notice::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
Anope::string message = params[1];
User *u = source.GetUser();
/* ignore channel notices */
if (!IRCD->IsChannelValid(params[0]))
{
BotInfo *bi = BotInfo::Find(params[0]);
if (!bi)
return;
FOREACH_MOD(OnBotNotice, (u, bi, message));
}
}
void Part::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
User *u = source.GetUser();
const Anope::string &reason = params.size() > 1 ? params[1] : "";
Anope::string channel;
commasepstream sep(params[0]);
while (sep.GetToken(channel))
{
Channel *c = Channel::Find(channel);
if (!c || !u->FindChannel(c))
continue;
Log(u, c, "part") << "Reason: " << (!reason.empty() ? reason : "No reason");
FOREACH_MOD(OnPrePartChannel, (u, c));
c->DeleteUser(u);
FOREACH_MOD(OnPartChannel, (u, c, c->name, !reason.empty() ? reason : ""));
}
}
void Ping::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
IRCD->SendPong(params.size() > 1 ? params[1] : Me->GetSID(), params[0]);
}
void Privmsg::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
const Anope::string &receiver = params[0];
Anope::string message = params[1];
User *u = source.GetUser();
if (IRCD->IsChannelValid(receiver))
{
Channel *c = Channel::Find(receiver);
if (c)
{
FOREACH_MOD(OnPrivmsg, (u, c, message));
}
}
else
{
/* If a server is specified (nick@server format), make sure it matches
* us, and strip it off. */
Anope::string botname = receiver;
size_t s = receiver.find('@');
bool nick_only = false;
if (s != Anope::string::npos)
{
Anope::string servername(receiver.begin() + s + 1, receiver.end());
botname = botname.substr(0, s);
nick_only = true;
if (!servername.equals_ci(Me->GetName()))
return;
}
else if (!IRCD->RequiresID && Config->UseStrictPrivmsg)
{
BotInfo *bi = BotInfo::Find(receiver);
if (!bi)
return;
Log(LOG_DEBUG) << "Ignored PRIVMSG without @ from " << u->nick;
u->SendMessage(bi, _("\"/msg %s\" is no longer supported. Use \"/msg %s@%s\" or \"/%s\" instead."), bi->nick.c_str(), bi->nick.c_str(), Me->GetName().c_str(), bi->nick.c_str());
return;
}
BotInfo *bi = BotInfo::Find(botname, nick_only);
if (bi)
{
if (message[0] == '\1' && message[message.length() - 1] == '\1')
{
if (message.substr(0, 6).equals_ci("\1PING "))
{
Anope::string buf = message;
buf.erase(buf.begin());
buf.erase(buf.end() - 1);
IRCD->SendCTCP(bi, u->nick, "%s", buf.c_str());
}
else if (message.substr(0, 9).equals_ci("\1VERSION\1"))
{
Module *enc = ModuleManager::FindFirstOf(ENCRYPTION);
IRCD->SendCTCP(bi, u->nick, "VERSION Anope-%s %s :%s - (%s) -- %s", Anope::Version().c_str(), Me->GetName().c_str(), IRCD->GetProtocolName().c_str(), enc ? enc->name.c_str() : "(none)", Anope::VersionBuildString().c_str());
}
return;
}
EventReturn MOD_RESULT;
FOREACH_RESULT(OnBotPrivmsg, MOD_RESULT, (u, bi, message));
if (MOD_RESULT == EVENT_STOP)
return;
bi->OnMessage(u, message);
}
}
return;
}
void Quit::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
const Anope::string &reason = params[0];
User *user = source.GetUser();
Log(user, "quit") << "quit (Reason: " << (!reason.empty() ? reason : "no reason") << ")";
user->Quit(reason);
}
void SQuit::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
Server *s = Server::Find(params[0]);
if (!s)
{
Log(LOG_DEBUG) << "SQUIT for nonexistent server " << params[0];
return;
}
if (s == Me)
{
if (Me->GetLinks().empty())
return;
s = Me->GetLinks().front();
}
s->Delete(s->GetName() + " " + s->GetUplink()->GetName());
}
void Stats::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
User *u = source.GetUser();
switch (params[0][0])
{
case 'l':
if (u->HasMode("OPER"))
{
IRCD->SendNumeric(211, source.GetSource(), "Server SendBuf SentBytes SentMsgs RecvBuf RecvBytes RecvMsgs ConnTime");
IRCD->SendNumeric(211, source.GetSource(), "%s %d %d %d %d %d %d %ld", Config->Uplinks[Anope::CurrentUplink].host.c_str(), UplinkSock->WriteBufferLen(), TotalWritten, -1, UplinkSock->ReadBufferLen(), TotalRead, -1, static_cast<long>(Anope::CurTime - Anope::StartTime));
}
IRCD->SendNumeric(219, source.GetSource(), "%c :End of /STATS report.", params[0][0]);
break;
case 'o':
case 'O':
/* Check whether the user is an operator */
if (!u->HasMode("OPER") && Config->GetBlock("options")->Get<bool>("hidestatso"))
IRCD->SendNumeric(219, source.GetSource(), "%c :End of /STATS report.", params[0][0]);
else
{
for (unsigned i = 0; i < Oper::opers.size(); ++i)
{
Oper *o = Oper::opers[i];
const NickAlias *na = NickAlias::Find(o->name);
if (na)
IRCD->SendNumeric(243, source.GetSource(), "O * * %s %s 0", o->name.c_str(), o->ot->GetName().replace_all_cs(" ", "_").c_str());
}
IRCD->SendNumeric(219, source.GetSource(), "%c :End of /STATS report.", params[0][0]);
}
break;
case 'u':
{
long uptime = static_cast<long>(Anope::CurTime - Anope::StartTime);
IRCD->SendNumeric(242, source.GetSource(), ":Services up %d day%s, %02d:%02d:%02d", uptime / 86400, uptime / 86400 == 1 ? "" : "s", (uptime / 3600) % 24, (uptime / 60) % 60, uptime % 60);
IRCD->SendNumeric(250, source.GetSource(), ":Current users: %d (%d ops); maximum %d", UserListByNick.size(), OperCount, MaxUserCount);
IRCD->SendNumeric(219, source.GetSource(), "%c :End of /STATS report.", params[0][0]);
break;
} /* case 'u' */
default:
IRCD->SendNumeric(219, source.GetSource(), "%c :End of /STATS report.", params[0][0]);
}
return;
}
void Time::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
time_t t;
time(&t);
struct tm *tm = localtime(&t);
char buf[64];
strftime(buf, sizeof(buf), "%a %b %d %H:%M:%S %Y %Z", tm);
IRCD->SendNumeric(391, source.GetSource(), "%s :%s", Me->GetName().c_str(), buf);
return;
}
void Topic::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
Channel *c = Channel::Find(params[0]);
if (c)
c->ChangeTopicInternal(source.GetUser(), source.GetSource(), params[1], Anope::CurTime);
return;
}
void Version::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
Module *enc = ModuleManager::FindFirstOf(ENCRYPTION);
IRCD->SendNumeric(351, source.GetSource(), "Anope-%s %s :%s -(%s) -- %s", Anope::Version().c_str(), Me->GetName().c_str(), IRCD->GetProtocolName().c_str(), enc ? enc->name.c_str() : "(none)", Anope::VersionBuildString().c_str());
}
void Whois::Run(MessageSource &source, const std::vector<Anope::string> &params)
{
User *u = User::Find(params[0]);
if (u && u->server == Me)
{
const BotInfo *bi = BotInfo::Find(u->GetUID());
IRCD->SendNumeric(311, source.GetSource(), "%s %s %s * :%s", u->nick.c_str(), u->GetIdent().c_str(), u->host.c_str(), u->realname.c_str());
if (bi)
IRCD->SendNumeric(307, source.GetSource(), "%s :is a registered nick", bi->nick.c_str());
IRCD->SendNumeric(312, source.GetSource(), "%s %s :%s", u->nick.c_str(), Me->GetName().c_str(), Config->GetBlock("serverinfo")->Get<const Anope::string>("description").c_str());
if (bi)
IRCD->SendNumeric(317, source.GetSource(), "%s %ld %ld :seconds idle, signon time", bi->nick.c_str(), static_cast<long>(Anope::CurTime - bi->lastmsg), static_cast<long>(bi->signon));
IRCD->SendNumeric(313, source.GetSource(), "%s :is a Network Service", u->nick.c_str());
IRCD->SendNumeric(318, source.GetSource(), "%s :End of /WHOIS list.", u->nick.c_str());
}
else
IRCD->SendNumeric(401, source.GetSource(), "%s :No such user.", params[0].c_str());
}