EModRet OnNumericMessage(CNumericMessage &Message) override {
unsigned int uCode = Message.GetCode();
if (uCode == 375 /* RPL_MOTDSTART */
|| uCode == 372 /* RPL_MOTD */)
return HALT;
if (uCode == 376 /* RPL_ENDOFMOTD */) {
Message.SetCommand("422"); /* ERR_NOMOTD */
Message.SetParams({Message.GetParam(0), "MOTD blocked by ZNC"});
}
return CONTINUE;
}
EModRet OnNumericMessage(CNumericMessage& msg) override {
if (m_pTimer) {
// Are we trying to get our primary nick and we caused this error?
// :irc.server.net 433 mynick badnick :Nickname is already in use.
if (msg.GetCode() == 433 && msg.GetParam(1).Equals(GetNick())) {
return HALT;
}
// clang-format off
// :leguin.freenode.net 435 mynick badnick #chan :Cannot change nickname while banned on channel
// clang-format on
if (msg.GetCode() == 435) {
PutModule("Unable to obtain nick " + msg.GetParam(1) + ": " +
msg.GetParam(3) + ", " + msg.GetParam(2));
Disable();
}
// clang-format off
// :irc1.unrealircd.org 447 mynick :Can not change nickname while on #chan (+N)
// clang-format on
if (msg.GetCode() == 447) {
PutModule("Unable to obtain nick: " + msg.GetParam(1));
Disable();
}
}
return CONTINUE;
}
static CMessage BufferMessage(const CNumericMessage& Message) {
CMessage Format(Message);
Format.SetNick(CNick(_NAMEDFMT(Message.GetNick().GetHostMask())));
Format.SetParam(0, "{target}");
unsigned uParams = Format.GetParams().size();
for (unsigned int i = 1; i < uParams; ++i) {
Format.SetParam(i, _NAMEDFMT(Format.GetParam(i)));
}
return Format;
}
TEST(MessageTest, Numeric) {
CNumericMessage msg;
msg.Parse(":server 123 user :foo bar");
EXPECT_EQ("server", msg.GetNick().GetNick());
EXPECT_EQ("123", msg.GetCommand());
EXPECT_EQ(123u, msg.GetCode());
EXPECT_EQ(CMessage::Type::Numeric, msg.GetType());
EXPECT_EQ(":server 123 user :foo bar", msg.ToString());
}
EModRet OnNumericMessage(CNumericMessage& msg) override {
if (msg.GetCode() == 903) {
/* SASL success! */
if (m_bVerbose) {
PutModule(m_Mechanisms.GetCurrent() + " mechanism succeeded.");
}
GetNetwork()->GetIRCSock()->ResumeCap();
m_bAuthenticated = true;
DEBUG("sasl: Authenticated with mechanism ["
<< m_Mechanisms.GetCurrent() << "]");
} else if (msg.GetCode() == 904 ||
msg.GetCode() == 905) {
DEBUG("sasl: Mechanism [" << m_Mechanisms.GetCurrent()
<< "] failed.");
if (m_bVerbose) {
PutModule(m_Mechanisms.GetCurrent() + " mechanism failed.");
}
if (m_Mechanisms.HasNext()) {
m_Mechanisms.IncrementIndex();
PutIRC("AUTHENTICATE " + m_Mechanisms.GetCurrent());
} else {
CheckRequireAuth();
GetNetwork()->GetIRCSock()->ResumeCap();
}
} else if (msg.GetCode() == 906) {
/* CAP wasn't paused? */
DEBUG("sasl: Reached 906.");
CheckRequireAuth();
} else if (msg.GetCode() == 907) {
m_bAuthenticated = true;
GetNetwork()->GetIRCSock()->ResumeCap();
DEBUG("sasl: Received 907 -- We are already registered");
} else {
return CONTINUE;
}
return HALT;
}
bool CIRCSock::OnNumericMessage(CNumericMessage& Message) {
const CString& sCmd = Message.GetCommand();
CString sServer = Message.GetNick().GetHostMask();
unsigned int uRaw = Message.GetCode();
CString sNick = Message.GetParam(0);
bool bResult = false;
IRCSOCKMODULECALL(OnNumericMessage(Message), &bResult);
if (bResult) return true;
switch (uRaw) {
case 1: { // :irc.server.com 001 nick :Welcome to the Internet Relay
if (m_bAuthed && sServer == "irc.znc.in") {
// m_bAuthed == true => we already received another 001 => we
// might be in a traffic loop
m_pNetwork->PutStatus(
"ZNC seems to be connected to itself, disconnecting...");
Quit();
return true;
}
m_pNetwork->SetIRCServer(sServer);
// Now that we are connected, let nature take its course
SetTimeout(CIRCNetwork::NO_TRAFFIC_TIMEOUT, TMO_READ);
PutIRC("WHO " + sNick);
m_bAuthed = true;
m_pNetwork->PutStatus("Connected!");
const vector<CClient*>& vClients = m_pNetwork->GetClients();
for (CClient* pClient : vClients) {
CString sClientNick = pClient->GetNick(false);
if (!sClientNick.Equals(sNick)) {
// If they connected with a nick that doesn't match the one
// we got on irc, then we need to update them
pClient->PutClient(":" + sClientNick + "!" +
m_Nick.GetIdent() + "@" +
m_Nick.GetHost() + " NICK :" + sNick);
}
}
SetNick(sNick);
IRCSOCKMODULECALL(OnIRCConnected(), NOTHING);
m_pNetwork->ClearRawBuffer();
m_pNetwork->AddRawBuffer(BufferMessage(Message));
m_pNetwork->IRCConnected();
break;
}
case 5:
ParseISupport(Message);
m_pNetwork->UpdateExactRawBuffer(BufferMessage(Message));
break;
case 10: { // :irc.server.com 010 nick <hostname> <port> :<info>
CString sHost = Message.GetParam(1);
CString sPort = Message.GetParam(2);
CString sInfo = Message.GetParam(3);
m_pNetwork->PutStatus(
"Server [" + m_pNetwork->GetCurrentServer()->GetString(false) +
"] redirects us to [" + sHost + ":" + sPort +
"] with reason [" + sInfo + "]");
m_pNetwork->PutStatus(
"Perhaps you want to add it as a new server.");
// Don't send server redirects to the client
return true;
}
case 2:
case 3:
case 4:
case 250: // highest connection count
case 251: // user count
case 252: // oper count
case 254: // channel count
case 255: // client count
case 265: // local users
case 266: // global users
m_pNetwork->UpdateRawBuffer(sCmd, BufferMessage(Message));
break;
case 305:
m_pNetwork->SetIRCAway(false);
break;
case 306:
m_pNetwork->SetIRCAway(true);
break;
case 324: { // MODE
// :irc.server.com 324 nick #chan +nstk key
CChan* pChan = m_pNetwork->FindChan(Message.GetParam(1));
if (pChan) {
pChan->SetModes(Message.GetParams(2));
// We don't SetModeKnown(true) here,
// because a 329 will follow
if (!pChan->IsModeKnown()) {
// When we JOIN, we send a MODE
// request. This makes sure the
// reply isn't forwarded.
return true;
}
if (pChan->IsDetached()) {
return true;
}
}
}
break;
case 329: {
// :irc.server.com 329 nick #chan 1234567890
CChan* pChan = m_pNetwork->FindChan(Message.GetParam(1));
if (pChan) {
unsigned long ulDate = Message.GetParam(2).ToULong();
pChan->SetCreationDate(ulDate);
if (!pChan->IsModeKnown()) {
pChan->SetModeKnown(true);
// When we JOIN, we send a MODE
// request. This makes sure the
// reply isn't forwarded.
return true;
}
if (pChan->IsDetached()) {
return true;
}
}
}
break;
case 331: {
// :irc.server.com 331 yournick #chan :No topic is set.
CChan* pChan = m_pNetwork->FindChan(Message.GetParam(1));
if (pChan) {
pChan->SetTopic("");
if (pChan->IsDetached()) {
return true;
}
}
break;
}
case 332: {
// :irc.server.com 332 yournick #chan :This is a topic
CChan* pChan = m_pNetwork->FindChan(Message.GetParam(1));
if (pChan) {
CString sTopic = Message.GetParam(2);
pChan->SetTopic(sTopic);
if (pChan->IsDetached()) {
return true;
}
}
break;
}
case 333: {
// :irc.server.com 333 yournick #chan setternick 1112320796
CChan* pChan = m_pNetwork->FindChan(Message.GetParam(1));
if (pChan) {
sNick = Message.GetParam(2);
unsigned long ulDate = Message.GetParam(3).ToULong();
pChan->SetTopicOwner(sNick);
pChan->SetTopicDate(ulDate);
if (pChan->IsDetached()) {
return true;
}
}
break;
}
case 352: { // WHO
// :irc.yourserver.com 352 yournick #chan ident theirhost.com irc.theirserver.com theirnick H :0 Real Name
sNick = Message.GetParam(5);
CString sChan = Message.GetParam(1);
CString sIdent = Message.GetParam(2);
CString sHost = Message.GetParam(3);
if (sNick.Equals(GetNick())) {
m_Nick.SetIdent(sIdent);
m_Nick.SetHost(sHost);
}
m_pNetwork->SetIRCNick(m_Nick);
m_pNetwork->SetIRCServer(sServer);
const vector<CChan*>& vChans = m_pNetwork->GetChans();
for (CChan* pChan : vChans) {
pChan->OnWho(sNick, sIdent, sHost);
}
CChan* pChan = m_pNetwork->FindChan(sChan);
if (pChan && pChan->IsDetached()) {
return true;
}
break;
}
case 353: { // NAMES
// :irc.server.com 353 nick @ #chan :nick1 nick2
// Todo: allow for non @+= server msgs
CChan* pChan = m_pNetwork->FindChan(Message.GetParam(2));
// If we don't know that channel, some client might have
// requested a /names for it and we really should forward this.
if (pChan) {
CString sNicks = Message.GetParam(3);
pChan->AddNicks(sNicks);
if (pChan->IsDetached()) {
return true;
}
}
break;
}
case 366: { // end of names list
// :irc.server.com 366 nick #chan :End of /NAMES list.
CChan* pChan = m_pNetwork->FindChan(Message.GetParam(1));
if (pChan) {
if (pChan->IsOn()) {
// If we are the only one in the chan, set our default modes
if (pChan->GetNickCount() == 1) {
CString sModes = pChan->GetDefaultModes();
if (sModes.empty()) {
sModes =
m_pNetwork->GetUser()->GetDefaultChanModes();
}
if (!sModes.empty()) {
PutIRC("MODE " + pChan->GetName() + " " + sModes);
}
}
}
if (pChan->IsDetached()) {
// don't put it to clients
return true;
}
}
break;
}
case 375: // begin motd
case 422: // MOTD File is missing
if (m_pNetwork->GetIRCServer().Equals(sServer)) {
m_pNetwork->ClearMotdBuffer();
}
case 372: // motd
case 376: // end motd
if (m_pNetwork->GetIRCServer().Equals(sServer)) {
m_pNetwork->AddMotdBuffer(BufferMessage(Message));
}
break;
case 437:
// :irc.server.net 437 * badnick :Nick/channel is temporarily unavailable
// :irc.server.net 437 mynick badnick :Nick/channel is temporarily unavailable
// :irc.server.net 437 mynick badnick :Cannot change nickname while banned on channel
if (m_pNetwork->IsChan(Message.GetParam(1)) || sNick != "*") break;
case 432:
// :irc.server.com 432 * nick :Erroneous Nickname: Illegal chars
case 433: {
CString sBadNick = Message.GetParam(1);
if (!m_bAuthed) {
SendAltNick(sBadNick);
return true;
}
break;
}
case 451:
// :irc.server.com 451 CAP :You have not registered
// Servers that don't support CAP will give us this error, don't send
// it to the client
if (sNick.Equals("CAP")) return true;
case 470: {
// :irc.unreal.net 470 mynick [Link] #chan1 has become full, so you are automatically being transferred to the linked channel #chan2
// :mccaffrey.freenode.net 470 mynick #electronics ##electronics :Forwarding to another channel
// freenode style numeric
CChan* pChan = m_pNetwork->FindChan(Message.GetParam(1));
if (!pChan) {
// unreal style numeric
pChan = m_pNetwork->FindChan(Message.GetParam(2));
}
if (pChan) {
pChan->Disable();
m_pNetwork->PutStatus("Channel [" + pChan->GetName() +
"] is linked to "
"another channel and was thus disabled.");
}
break;
}
case 670:
// :hydra.sector5d.org 670 kylef :STARTTLS successful, go ahead with TLS handshake
//
// 670 is a response to `STARTTLS` telling the client to switch to
// TLS
if (!GetSSL()) {
StartTLS();
m_pNetwork->PutStatus("Switched to SSL (STARTTLS)");
}
return true;
}
return false;
}
EModRet OnNumericMessage(CNumericMessage& msg) override { vsHooks.push_back("OnNumericMessage"); vsMessages.push_back(msg.ToString()); vNetworks.push_back(msg.GetNetwork()); vChannels.push_back(msg.GetChan()); return eAction; }