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5752c07a564476de39447f564ef8836c117c6486
anope/modules/protocol/inspircd.cpp
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Sadie Powell 5752c07a56 Fix a missing override keyword.
2025-05-03 21:40:21 +01:00

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/* InspIRCd functions
*
* (C) 2003-2025 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 "module.h"
#include "modules/chanserv/mode.h"
#include "modules/encryption.h"
#include "modules/httpd.h"
#include "modules/nickserv/cert.h"
#include "modules/nickserv/sasl.h"
typedef std::map<char, unsigned> ListLimits;
struct SASLUser final
{
Anope::string uid;
Anope::string acc;
time_t created;
};
namespace
{
/** Whether we should send extbans using their named form. */
bool named_extbans = false;
// The SID of a server we are waiting to squit.
Anope::string rsquit_id;
// The hostname of a server we are waiting to squit.
Anope::string rsquit_server;
// Non-introduced users who have authenticated via SASL.
std::list<SASLUser> saslusers;
// A reference to the SHA-2 algorithm provider.
static ServiceReference<Encryption::Provider> sha256("Encryption::Provider", "sha256");
// The version of the InspIRCd protocol that we are using.
size_t spanningtree_proto_ver = 1205;
bool IsExtBan(const Anope::string &str, bool &inverted, Anope::string &name, Anope::string &value)
{
auto startpos = 0;
if (!str.empty() && str[0] == '!')
startpos++;
auto endpos = str.find_first_not_of("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz", startpos);
if (endpos == Anope::string::npos || str[endpos] != ':' || endpos+1 == str.length())
return false;
inverted = !!startpos;
name = str.substr(startpos, endpos - startpos);
value = str.substr(endpos + 1);
return true;
}
// Parses a module name in the format "m_foo.so=bar" to {foo, bar}.
void ParseModule(const Anope::string &module, Anope::string &modname, Anope::string &moddata)
{
size_t sep = module.find('=');
// Extract and clean up the module name.
modname = module.substr(0, sep);
if (modname.compare(0, 2, "m_", 2) == 0)
modname.erase(0, 2);
if (modname.length() > 3 && modname.compare(modname.length() - 3, 3, ".so", 3) == 0)
modname.erase(modname.length() - 3);
// Extract the module link data (if any).
moddata = (sep == Anope::string::npos) ? "" : module.substr(sep + 1);
if (Anope::ProtocolDebug)
Log(LOG_DEBUG) << "Parsed module: name=" << modname << " data=" << moddata;
}
void ParseModuleData(const Anope::string &moddata, Anope::map<Anope::string> &modmap)
{
sepstream datastream(moddata, '&');
for (Anope::string datapair; datastream.GetToken(datapair); )
{
size_t split = datapair.find('=');
std::pair<Anope::map<Anope::string>::iterator, bool> res;
if (split == Anope::string::npos)
res = modmap.emplace(datapair, "");
else
res = modmap.emplace(datapair.substr(0, split), HTTPUtils::URLDecode(datapair.substr(split + 1)));
if (Anope::ProtocolDebug && res.second)
Log(LOG_DEBUG) << "Parsed module data: key=" << res.first->first << " value=" << res.first->second;
}
}
}
class InspIRCdProto final
: public IRCDProto
, public SASL::ProtocolInterface
{
private:
static Anope::string GetAccountNicks(NickAlias* na)
{
if (!na || Config->GetModule("nickserv").Get<bool>("nonicknameownership"))
return {};
Anope::string nicks;
for (const auto &na : *na->nc->aliases)
nicks += " " + na->nick;
return nicks.substr(1);
}
static void SendChgIdentInternal(const Anope::string &uid, const Anope::string &vident)
{
if (!Servers::Capab.count("CHGIDENT"))
{
Log() << "Unable to change the vident of " << uid << " as the remote server does not have the chgident module loaded.";
return;
}
Uplink::Send("ENCAP", uid.substr(0, 3), "CHGIDENT", uid, vident);
}
static void SendChgHostInternal(const Anope::string &uid, const Anope::string &vhost)
{
if (!Servers::Capab.count("CHGHOST"))
{
Log() << "Unable to change the vhost of " << uid << " as the remote server does not have the chghost module loaded.";
return;
}
Uplink::Send("ENCAP", uid.substr(0, 3), "CHGHOST", uid, vhost);
}
static void SendAddLine(const Anope::string &xtype, const Anope::string &mask, time_t duration, const Anope::string &addedby, const Anope::string &reason)
{
Uplink::Send("ADDLINE", xtype, mask, addedby, Anope::CurTime, duration, reason);
}
static void SendDelLine(const Anope::string &xtype, const Anope::string &mask)
{
Uplink::Send("DELLINE", xtype, mask);
}
static void SendAccount(const Anope::string &uid, NickAlias *na)
{
Uplink::Send("METADATA", uid, "accountid", na ? Anope::ToString(na->nc->GetId()) : Anope::string());
Uplink::Send("METADATA", uid, "accountname", na ? na->nc->display : Anope::string());
if (spanningtree_proto_ver >= 1206)
Uplink::Send("METADATA", uid, "accountnicks", GetAccountNicks(na));
}
static void SendVHostInternal(const Anope::string &uid, const Anope::string &vident, const Anope::string &vhost)
{
if (Servers::Capab.count("CLOAK"))
{
Anope::string cloak;
if (!vident.empty())
cloak.append(vident).push_back('@');
cloak.append(vhost);
Uplink::Send("METADATA", uid, "custom-cloak", cloak);
return;
}
if (!vident.empty())
SendChgIdentInternal(uid, vident);
SendChgHostInternal(uid, vhost);
}
public:
PrimitiveExtensibleItem<ListLimits> maxlist;
InspIRCdProto(Module *creator)
: IRCDProto(creator, "InspIRCd 3+")
, SASL::ProtocolInterface(creator)
, maxlist(creator, "maxlist")
{
DefaultPseudoclientModes = "+oI";
CanSVSNick = true;
CanSVSJoin = true;
CanSetVHost = true;
CanSetVIdent = true;
CanSQLine = true;
CanSZLine = true;
CanCertFP = true;
RequiresID = true;
MaxModes = 0;
MaxLine = 0;
}
size_t GetMaxListFor(Channel *c, ChannelMode *cm) override
{
ListLimits *limits = maxlist.Get(c);
if (limits)
{
ListLimits::const_iterator limit = limits->find(cm->mchar);
if (limit != limits->end())
return limit->second;
}
// Fall back to the config limit if we can't find the mode.
return IRCDProto::GetMaxListFor(c, cm);
}
void SendConnect() override
{
Uplink::Send("CAPAB", "START", 1206);
Uplink::Send("CAPAB", "CAPABILITIES", "CASEMAPPING=" + Config->GetBlock("options").Get<const Anope::string>("casemap", "ascii") + (sha256 ? " CHALLENGE=*" : ""));
Uplink::Send("CAPAB", "END");
}
void SendSASLMechanisms(std::vector<Anope::string> &mechanisms) override
{
Anope::string mechlist;
for (const auto &mechanism : mechanisms)
mechlist += "," + mechanism;
Uplink::Send("METADATA", "*", "saslmechlist", mechanisms.empty() ? "" : mechlist.substr(1));
}
void SendSVSKill(const MessageSource &source, User *user, const Anope::string &buf) override
{
IRCDProto::SendSVSKill(source, user, buf);
user->KillInternal(source, buf);
}
void SendForceNickChange(User *u, const Anope::string &newnick, time_t when) override
{
Uplink::Send("SVSNICK", u->GetUID(), newnick, when, u->timestamp);
}
void SendGlobalNotice(BotInfo *bi, const Server *dest, const Anope::string &msg) override
{
Uplink::Send(bi, "NOTICE", "$" + dest->GetName(), msg);
}
void SendGlobalPrivmsg(BotInfo *bi, const Server *dest, const Anope::string &msg) override
{
Uplink::Send(bi, "PRIVMSG", "$" + dest->GetName(), msg);
}
void SendContextNotice(BotInfo *bi, User *target, Channel *context, const Anope::string &msg) override
{
if (spanningtree_proto_ver >= 1206)
{
IRCD->SendNotice(bi, target->GetUID(), msg, {
{ "~context", context->name },
});
return;
}
IRCDProto::SendContextNotice(bi, target, context, msg);
}
void SendContextPrivmsg(BotInfo *bi, User *target, Channel *context, const Anope::string &msg) override
{
if (spanningtree_proto_ver >= 1206)
{
IRCD->SendPrivmsg(bi, target->GetUID(), msg, {
{ "~context", context->name },
});
return;
}
IRCDProto::SendContextPrivmsg(bi, target, context, msg);
}
void SendClearModes(const MessageSource &user, Channel *c, User* u, const Anope::string &mode) override
{
auto *cm = ModeManager::FindChannelModeByName(mode);
if (!cm || !cm->mchar)
return;
Uplink::Send(user, "SVSCMODE", u->GetUID(), c->name, cm->mchar);
}
void SendQuit(User *u, const Anope::string &buf, const Anope::string &operbuf) override
{
if (!operbuf.empty())
Uplink::Send("METADATA", u->GetUID(), "operquit", operbuf);
IRCDProto::SendQuit(u, buf, operbuf);
}
void SendPong(const Anope::string &servname, const Anope::string &who) override
{
Server *serv = servname.empty() ? NULL : Server::Find(servname);
if (!serv)
serv = Me;
Uplink::Send(serv, "PONG", who);
}
void SendAkillDel(const XLine *x) override
{
{
/* InspIRCd may support regex bans
* Mask is expected in format: 'n!u@h\sr' and spaces as '\s'
* We remove the '//' and replace '#' and any ' ' with '\s'
*/
if (x->IsRegex() && Servers::Capab.count("RLINE"))
{
Anope::string mask = x->mask;
if (mask.length() >= 2 && mask[0] == '/' && mask[mask.length() - 1] == '/')
mask = mask.substr(1, mask.length() - 2);
size_t h = mask.find('#');
if (h != Anope::string::npos)
{
mask = mask.replace(h, 1, "\\s");
mask = mask.replace_all_cs(" ", "\\s");
}
SendDelLine("R", mask);
return;
}
else if (x->IsRegex() || x->HasNickOrReal())
return;
/* ZLine if we can instead */
if (x->GetUser() == "*")
{
cidr addr(x->GetHost());
if (addr.valid())
{
IRCD->SendSZLineDel(x);
return;
}
}
SendDelLine("G", x->GetUser() + "@" + x->GetHost());
}
}
void SendInvite(const MessageSource &source, const Channel *c, User *u) override
{
Uplink::Send(source, "INVITE", u->GetUID(), c->name, c->created);
}
void SendTopic(const MessageSource &source, Channel *c) override
{
if (Servers::Capab.count("TOPICLOCK"))
{
Uplink::Send(c->WhoSends(), "SVSTOPIC", c->name, c->topic_ts, c->topic_setter, c->topic);
}
else
{
/* If the last time a topic was set is after the TS we want for this topic we must bump this topic's timestamp to now */
time_t ts = c->topic_ts;
if (c->topic_time > ts)
ts = Anope::CurTime;
/* But don't modify c->topic_ts, it should remain set to the real TS we want as ci->last_topic_time pulls from it */
Uplink::Send(source, "FTOPIC", c->name, c->created, ts, c->topic_setter, c->topic);
}
}
void SendVHostDel(User *u) override
{
UserMode *um = ModeManager::FindUserModeByName("CLOAK");
if (um && !u->HasMode(um->name))
// Just set +x if we can
u->SetMode(NULL, um);
else
// Try to restore cloaked host
this->SendChgHostInternal(u->nick, u->chost);
}
void SendAkill(User *u, XLine *x) override
{
// Calculate the time left before this would expire
time_t timeleft = x->expires ? x->expires - Anope::CurTime : x->expires;
/* InspIRCd may support regex bans, if they do we can send this and forget about it
* Mask is expected in format: 'n!u@h\sr' and spaces as '\s'
* We remove the '//' and replace '#' and any ' ' with '\s'
*/
if (x->IsRegex() && Servers::Capab.count("RLINE"))
{
Anope::string mask = x->mask;
if (mask.length() >= 2 && mask[0] == '/' && mask[mask.length() - 1] == '/')
mask = mask.substr(1, mask.length() - 2);
size_t h = mask.find('#');
if (h != Anope::string::npos)
{
mask = mask.replace(h, 1, "\\s");
mask = mask.replace_all_cs(" ", "\\s");
}
SendAddLine("R", mask, timeleft, x->by, x->GetReason());
return;
}
else if (x->IsRegex() || x->HasNickOrReal())
{
if (!u)
{
/* No user (this akill was just added), and contains nick and/or realname. Find users that match and ban them */
for (const auto &[_, user] : UserListByNick)
if (x->manager->Check(user, x))
this->SendAkill(user, x);
return;
}
const XLine *old = x;
if (old->manager->HasEntry("*@" + u->host))
return;
/* We can't akill x as it has a nick and/or realname included, so create a new akill for *@host */
x = new XLine("*@" + u->host, old->by, old->expires, old->reason, old->id);
old->manager->AddXLine(x);
Log(Config->GetClient("OperServ"), "akill") << "AKILL: Added an akill for " << x->mask << " because " << u->GetMask() << "#" << u->realname << " matches " << old->mask;
}
/* ZLine if we can instead */
if (x->GetUser() == "*")
{
cidr addr(x->GetHost());
if (addr.valid())
{
IRCD->SendSZLine(u, x);
return;
}
}
SendAddLine("G", x->GetUser() + "@" + x->GetHost(), timeleft, x->by, x->GetReason());
}
void SendNumericInternal(int numeric, const Anope::string &dest, const std::vector<Anope::string> &params) override
{
auto newparams = params;
newparams.insert(newparams.begin(), { Me->GetSID(), dest, Anope::ToString(numeric) });
Uplink::SendInternal({}, Me, "NUM", newparams);
}
void SendMode(const MessageSource &source, Channel *chan, const ModeManager::Change &change) override
{
std::map<char, std::vector<Anope::string>> listchanges;
ModeManager::Change otherchanges;
for (const auto &[mode, info] : change)
{
if (spanningtree_proto_ver >= 1206 && mode->type == MODE_LIST && info.first)
{
// Adding to a list mode.
const auto &data = info.second;
auto &listchange = listchanges[mode->mchar];
listchange.push_back(data.value);
listchange.push_back(data.set_by);
listchange.push_back(Anope::ToString(data.set_at));
}
else
{
// Regular mode change or mode removal.
otherchanges.emplace(mode, info);
}
}
for (auto &[mode, params] : listchanges)
{
// :<sid> LMODE <chan> <chants> <modechr> [<mask> <setter> <setts>]+
params.insert(params.begin(), { chan->name, Anope::ToString(chan->created), Anope::ToString(mode) });
Uplink::SendInternal({}, source, "LMODE", params);
}
if (!otherchanges.empty())
IRCDProto::SendMode(source, chan, otherchanges);
}
void SendModeInternal(const MessageSource &source, Channel *chan, const Anope::string &modes, const std::vector<Anope::string> &values) override
{
auto params = values;
params.insert(params.begin(), { chan->name, Anope::ToString(chan->created), modes });
Uplink::SendInternal({}, source, "FMODE", params);
}
void SendClientIntroduction(User *u) override
{
if (spanningtree_proto_ver >= 1206)
{
Uplink::Send("UID", u->GetUID(), u->timestamp, u->nick, u->host, u->host, u->GetIdent(), u->GetIdent(),
"0.0.0.0", u->timestamp, "+" + u->GetModes(), u->realname);
}
else
{
Uplink::Send("UID", u->GetUID(), u->timestamp, u->nick, u->host, u->host, u->GetIdent(), "0.0.0.0",
u->timestamp, "+" + u->GetModes(), u->realname);
}
if (u->GetModes().find('o') != Anope::string::npos)
{
// Mark as introduced so we can send an oper type.
BotInfo *bi = BotInfo::Find(u->nick, true);
if (bi)
bi->introduced = true;
Uplink::Send(u, "OPERTYPE", "service");
}
}
void SendServer(const Server *server) override
{
/* if rsquit is set then we are waiting on a squit */
if (rsquit_id.empty() && rsquit_server.empty())
Uplink::Send("SERVER", server->GetName(), server->GetSID(), server->GetDescription());
}
void SendSquit(Server *s, const Anope::string &message) override
{
if (s != Me)
{
rsquit_id = s->GetSID();
rsquit_server = s->GetName();
Uplink::Send("RSQUIT", s->GetName(), message);
}
else
Uplink::Send("SQUIT", s->GetName(), message);
}
void SendJoin(User *user, Channel *c, const ChannelStatus *status) override
{
Uplink::Send("FJOIN", c->name, c->created, "+" + c->GetModes(true, true), "," + user->GetUID());
/* Note that we can send this with the FJOIN but choose not to
* because the mode stacker will handle this and probably will
* merge these modes with +nrt and other mlocked modes
*/
if (status)
{
/* First save the channel status incase uc->Status == status */
ChannelStatus cs = *status;
/* If the user is internally on the channel with flags, kill them so that
* the stacker will allow this.
*/
ChanUserContainer *uc = c->FindUser(user);
if (uc != NULL)
uc->status.Clear();
BotInfo *setter = BotInfo::Find(user->GetUID());
for (auto mode : cs.Modes())
c->SetMode(setter, ModeManager::FindChannelModeByChar(mode), user->GetUID(), false);
if (uc != NULL)
uc->status = cs;
}
}
void SendSQLineDel(const XLine *x) override
{
if (IRCD->CanSQLineChannel && (x->mask[0] == '#'))
SendDelLine("CBAN", x->mask);
else
SendDelLine("Q", x->mask);
}
void SendSQLine(User *u, const XLine *x) override
{
// Calculate the time left before this would expire
time_t timeleft = x->expires ? x->expires - Anope::CurTime : x->expires;
if (IRCD->CanSQLineChannel && (x->mask[0] == '#'))
SendAddLine("CBAN", x->mask, timeleft, x->by, x->GetReason());
else
SendAddLine("Q", x->mask, timeleft, x->by, x->GetReason());
}
void SendVHost(User *u, const Anope::string &vident, const Anope::string &vhost) override
{
SendVHostInternal(u->GetUID(), vident, vhost);
}
void SendSVSHold(const Anope::string &nick, time_t t) override
{
Uplink::Send(Config->GetClient("NickServ"), "SVSHOLD", nick, t, "Being held for a registered user");
}
void SendSVSHoldDel(const Anope::string &nick) override
{
Uplink::Send(Config->GetClient("NickServ"), "SVSHOLD", nick);
}
void SendSZLineDel(const XLine *x) override
{
SendDelLine("Z", x->GetHost());
}
void SendSZLine(User *u, const XLine *x) override
{
// Calculate the time left before this would expire
time_t timeleft = x->expires ? x->expires - Anope::CurTime : x->expires;
SendAddLine("Z", x->GetHost(), timeleft, x->by, x->GetReason());
}
void SendSVSJoin(const MessageSource &source, User *u, const Anope::string &chan, const Anope::string &key) override
{
if (key.empty())
Uplink::Send(source, "SVSJOIN", u->GetUID(), chan);
else
Uplink::Send(source, "SVSJOIN", u->GetUID(), chan, key);
}
void SendSVSPart(const MessageSource &source, User *u, const Anope::string &chan, const Anope::string &param) override
{
if (!param.empty())
Uplink::Send(source, "SVSPART", u->GetUID(), chan, param);
else
Uplink::Send(source, "SVSPART", u->GetUID(), chan);
}
void SendSWhois(const MessageSource &bi, const Anope::string &who, const Anope::string &mask) override
{
User *u = User::Find(who);
Uplink::Send("METADATA", u->GetUID(), "swhois", mask);
}
void SendBOB() override
{
Uplink::Send("BURST", Anope::CurTime);
Module *enc = ModuleManager::FindFirstOf(ENCRYPTION);
if (spanningtree_proto_ver >= 1206)
{
Uplink::Send("SINFO", "customversion", Anope::printf("%s -- (%s) -- %s", IRCD->GetProtocolName().c_str(), enc ? enc->name.c_str() : "none", Anope::VersionBuildString().c_str()));
Uplink::Send("SINFO", "rawbranch", "Anope-" + Anope::VersionShort());
}
else
{
Uplink::Send("SINFO", "version", Anope::printf("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()));
Uplink::Send("SINFO", "fullversion", Anope::printf("Anope-%s %s :[%s] %s -- (%s) -- %s", Anope::Version().c_str(), Me->GetName().c_str(), Me->GetSID().c_str(), IRCD->GetProtocolName().c_str(), enc ? enc->name.c_str() : "none", Anope::VersionBuildString().c_str()));
}
Uplink::Send("SINFO", "rawversion", "Anope-" + Anope::VersionShort());
}
void SendEOB() override
{
Uplink::Send("ENDBURST");
if (spanningtree_proto_ver < 1206)
SendGlobops(Me, "Support for InspIRCd v3 is deprecated and will be removed in a future release. Please consider upgrading to InspIRCd v4.");
}
void SendGlobops(const MessageSource &source, const Anope::string &buf) override
{
if (Servers::Capab.count("GLOBOPS"))
Uplink::Send(source, "SNONOTICE", 'g', buf);
else
Uplink::Send(source, "SNONOTICE", "A", buf);
}
void SendLogin(User *u, NickAlias *na) override
{
/* InspIRCd uses an account to bypass chmode +R, not umode +r, so we can't send this here */
if (na->nc->HasExt("UNCONFIRMED"))
return;
IRCD->SendVHost(u, na->GetVHostIdent(), na->GetVHostHost());
SendAccount(u->GetUID(), na);
}
void SendLogout(User *u) override
{
SendAccount(u->GetUID(), nullptr);
}
void SendChannel(Channel *c) override
{
Uplink::Send("FJOIN", c->name, c->created, "+" + c->GetModes(true, true), "");
}
void SendSASLMessage(const SASL::Message &message) override
{
auto newparams = message.data;
newparams.insert(newparams.begin(), { message.target.substr(0, 3), "SASL", message.source, message.target, message.type });
Uplink::SendInternal({}, Me, "ENCAP", newparams);
}
void SendSVSLogin(const Anope::string &uid, NickAlias *na) override
{
SendAccount(uid, na);
// Expire old pending sessions or other sessions for this user.
for (auto it = saslusers.begin(); it != saslusers.end(); )
{
const SASLUser &u = *it;
if (u.created + 30 < Anope::CurTime || u.uid == uid)
it = saslusers.erase(it);
else
++it;
}
if (na)
{
if (!na->GetVHostHost().empty())
SendVHostInternal(uid, na->GetVHostIdent(), na->GetVHostHost());
// Mark this SASL session as pending user introduction.
SASLUser su;
su.uid = uid;
su.acc = na->nc->display;
su.created = Anope::CurTime;
saslusers.push_back(su);
}
}
void SendOper(User *u) override
{
if (spanningtree_proto_ver < 1206)
return; // We can't force an oper on this version.
const Anope::map<Anope::string> tags = {
{ "~automatic", "" },
};
Uplink::Send(tags, "SVSOPER", u->GetUID(), u->Account()->o->ot->GetName());
}
bool IsExtbanValid(const Anope::string &mask) override
{
bool inverted;
Anope::string name, value;
return IsExtBan(mask, inverted, name, value);
}
bool IsIdentValid(const Anope::string &ident) override
{
if (ident.empty() || ident.length() > IRCD->MaxUser)
return false;
for (auto c : ident)
{
if (c >= 'A' && c <= '}')
continue;
if ((c >= '0' && c <= '9') || c == '-' || c == '.')
continue;
return false;
}
return true;
}
bool IsTagValid(const Anope::string &tname, const Anope::string &tvalue) override
{
// InspIRCd accepts arbitrary message tags.
return true;
}
};
class InspIRCdAutoOpMode final
: public ChannelModeList
{
public:
InspIRCdAutoOpMode(char mode) : ChannelModeList("AUTOOP", mode)
{
}
bool IsValid(Anope::string &mask) const override
{
// We can not validate this because we don't know about the
// privileges of the setter so just reject attempts to set it.
return false;
}
};
// NOTE: matchers for the following extbans have not been implemented:
//
// * class(n): data not available
// * country(G): data not available
// * gateway(w): data not available in v3
// * realmask(a): todo
namespace InspIRCdExtBan
{
class Base
: public ChannelModeVirtual<ChannelModeList>
{
private:
unsigned char xbchar;
Anope::string xbname;
public:
Base(const Anope::string &mname, const Anope::string &xname, char xchar)
: ChannelModeVirtual<ChannelModeList>(mname, "BAN")
, xbchar(xchar)
, xbname(xname)
{
}
ChannelMode *Wrap(Anope::string &param) override
{
auto xbprefix = named_extbans || !xbchar ? xbname : Anope::string(xbchar);
param = xbprefix + ":" + param;
return ChannelModeVirtual<ChannelModeList>::Wrap(param);
}
ChannelMode *Unwrap(ChannelMode *cm, Anope::string &param) override
{
// The mask must be in the format [!]<letter>:<value> or [!]<name>:<value>.
if (cm->type != MODE_LIST)
return cm;
bool inverted;
Anope::string name, value;
if (!IsExtBan(param, inverted, name, value))
return cm;
if (name.length() == 1 ? name[0] != xbchar : name != xbname)
return cm;
param = value;
return this;
}
};
class EntryMatcher final
: public Base
{
public:
EntryMatcher(const Anope::string &mname, const Anope::string &xname, char xchar)
: Base(mname, xname, xchar)
{
}
bool Matches(User *u, const Entry *e) override
{
return Entry(this->name, e->GetMask()).Matches(u);
}
};
class ChannelMatcher final
: public Base
{
public:
ChannelMatcher(const Anope::string &mname, const Anope::string &xname, char xchar)
: Base(mname, xname, xchar)
{
}
bool Matches(User *u, const Entry *e) override
{
auto channel = e->GetMask();
ChannelMode *cm = NULL;
if (channel[0] != '#')
{
char modeChar = ModeManager::GetStatusChar(channel[0]);
channel.erase(channel.begin());
cm = ModeManager::FindChannelModeByChar(modeChar);
if (cm != NULL && cm->type != MODE_STATUS)
cm = NULL;
}
Channel *c = Channel::Find(channel);
if (c != NULL)
{
ChanUserContainer *uc = c->FindUser(u);
if (uc != NULL)
if (cm == NULL || uc->status.HasMode(cm->mchar))
return true;
}
return false;
}
};
class AccountMatcher final
: public Base
{
public:
AccountMatcher(const Anope::string &mname, const Anope::string &xname, char xchar)
: Base(mname, xname, xchar)
{
}
bool Matches(User *u, const Entry *e) override
{
return u->IsIdentified() && e->GetMask().equals_ci(u->Account()->display);
}
};
class RealnameMatcher final
: public Base
{
public:
RealnameMatcher(const Anope::string &mname, const Anope::string &xname, char xchar)
: Base(mname, xname, xchar)
{
}
bool Matches(User *u, const Entry *e) override
{
return Anope::Match(u->realname, e->GetMask());
}
};
class ServerMatcher final
: public Base
{
public:
ServerMatcher(const Anope::string &mname, const Anope::string &xname, char xchar)
: Base(mname, xname, xchar)
{
}
bool Matches(User *u, const Entry *e) override
{
return Anope::Match(u->server->GetName(), e->GetMask());
}
};
class FingerprintMatcher final
: public Base
{
public:
FingerprintMatcher(const Anope::string &mname, const Anope::string &xname, char xchar)
: Base(mname, xname, xchar)
{
}
bool Matches(User *u, const Entry *e) override
{
return !u->fingerprint.empty() && Anope::Match(u->fingerprint, e->GetMask());
}
};
class UnidentifiedMatcher final
: public Base
{
public:
UnidentifiedMatcher(const Anope::string &mname, const Anope::string &xname, char xchar)
: Base(mname, xname, xchar)
{
}
bool Matches(User *u, const Entry *e) override
{
return !u->Account() && Entry(this->base, e->GetMask()).Matches(u);
}
};
class OperMatcher
: public Base
{
private:
const Anope::string extname;
public:
OperMatcher(const Anope::string &mname, const Anope::string &xname, char xchar, const Anope::string &ename)
: Base(mname, xname, xchar)
, extname(ename)
{
}
bool Matches(User *u, const Entry *e) override
{
const auto *oper = u->GetExt<Anope::string>(extname);
if (!oper)
return false; // Not an operator.
return Anope::Match(oper->replace_all_cs(' ', '_'), e->GetMask());
}
};
}
class ColonDelimitedParamMode
: public ChannelModeParam
{
public:
ColonDelimitedParamMode(const Anope::string &modename, char modeChar) : ChannelModeParam(modename, modeChar, true) { }
bool IsValid(Anope::string &value) const override
{
return IsValid(value, false);
}
static bool IsValid(const Anope::string &value, bool historymode)
{
if (value.empty())
return false; // empty param is never valid
Anope::string::size_type pos = value.find(':');
if ((pos == Anope::string::npos) || (pos == 0))
return false; // no ':' or it's the first char, both are invalid
Anope::string rest;
if (Anope::Convert<int>(value, 0, &rest) <= 0)
return false; // negative numbers and zero are invalid
rest = rest.substr(1);
if (historymode)
{
// For the history mode, the part after the ':' is a duration and it
// can be in the user friendly "1d3h20m" format, make sure we accept that
return Anope::DoTime(rest) <= 0;
}
else
{
return Anope::Convert(rest, 0) <= 0;
}
}
};
class SimpleNumberParamMode final
: public ChannelModeParam
{
public:
SimpleNumberParamMode(const Anope::string &modename, char modeChar) : ChannelModeParam(modename, modeChar, true) { }
bool IsValid(Anope::string &value) const override
{
if (value.empty())
return false; // empty param is never valid
return Anope::Convert<int>(value, 0) <= 0;
}
};
class ChannelModeFlood final
: public ColonDelimitedParamMode
{
public:
ChannelModeFlood(char modeChar) : ColonDelimitedParamMode("FLOOD", modeChar) { }
bool IsValid(Anope::string &value) const override
{
// The parameter of this mode is a bit different, it may begin with a '*',
// ignore it if that's the case
Anope::string v = value[0] == '*' ? value.substr(1) : value;
return ((!value.empty()) && (ColonDelimitedParamMode::IsValid(v)));
}
};
class ChannelModeHistory final
: public ColonDelimitedParamMode
{
public:
ChannelModeHistory(char modeChar) : ColonDelimitedParamMode("HISTORY", modeChar) { }
bool IsValid(Anope::string &value) const override
{
return (ColonDelimitedParamMode::IsValid(value, true));
}
};
class ChannelModeRedirect final
: public ChannelModeParam
{
public:
ChannelModeRedirect(char modeChar) : ChannelModeParam("REDIRECT", modeChar, true) { }
bool IsValid(Anope::string &value) const override
{
// The parameter of this mode is a channel, and channel names start with '#'
return ((!value.empty()) && (value[0] == '#'));
}
};
struct IRCDMessageAway final
: Message::Away
{
IRCDMessageAway(Module *creator) : Message::Away(creator, "AWAY") { SetFlag(FLAG_REQUIRE_USER); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
std::vector<Anope::string> newparams(params);
if (newparams.size() > 1)
newparams.erase(newparams.begin());
Message::Away::Run(source, newparams, tags);
}
};
struct IRCDMessageCapab final
: IRCDMessage
{
struct ExtBanInfo final
{
// The letter assigned to the extban.
char letter = 0;
// The name of the extban.
Anope::string name;
// The type of extban.
Anope::string type;
};
struct ModeInfo final
{
// The letter assigned to the mode.
char letter = 0;
// If a prefix mode then the rank of the prefix.
unsigned level = 0;
// The name of the mode.
Anope::string name;
// If a prefix mode then the symbol associated with the prefix.
char symbol = 0;
// The type of mode.
Anope::string type;
};
// The HMAC challenge sent by the remote server.
Anope::string challenge;
Anope::string GetPassword()
{
if (challenge.empty() || !sha256)
return Config->Uplinks[Anope::CurrentUplink].password;
Anope::string b64challenge;
Anope::B64Encode(sha256->HMAC(Config->Uplinks[Anope::CurrentUplink].password, challenge), b64challenge);
challenge.clear();
return "AUTH:" + b64challenge.rtrim('=');
}
static std::pair<Anope::string, Anope::string> ParseCapability(const Anope::string &token)
{
Anope::string key;
Anope::string value;
auto sep = token.find('=');
if (sep == Anope::string::npos)
{
// FOO
key = token;
}
else
{
// FOO=bar
key = token.substr(0, sep);
value = token.substr(sep + 1);
}
if (Anope::ProtocolDebug)
Log(LOG_DEBUG) << "Parsed capability: key=" << key << " value=" << value;
return { key, value };
}
static bool ParseExtBan(const Anope::string &token, ExtBanInfo &extban)
{
// acting:foo=f matching:bar=b matching:baz
// A B A B A
auto a = token.find(':');
if (a == Anope::string::npos)
return false;
auto b = token.find('=', a + 1);
if (b == Anope::string::npos)
{
// ExtBan only has a name.
extban.name = token.substr(a + 1);
}
else
{
// ExtBan has a name and letter.
extban.name = token.substr(a + 1, b - a - 1);
extban.letter = token[b + 1];
}
extban.type = token.substr(0, a);
if (Anope::ProtocolDebug)
Log(LOG_DEBUG) << "Parsed extban: type=" << extban.type << " name=" << extban.name << " letter=" << extban.letter;
return true;
}
static bool ParseMode(const Anope::string &token, ModeInfo &mode)
{
// list:ban=b param-set:limit=l param:key=k prefix:30000:op=@o simple:noextmsg=n
// A C A C A C A B C A C
Anope::string::size_type a = token.find(':');
if (a == Anope::string::npos)
return false;
// If the mode is a prefix mode then it also has a rank.
mode.type = token.substr(0, a);
if (mode.type == "prefix")
{
Anope::string::size_type b = token.find(':', a + 1);
if (b == Anope::string::npos)
return false;
const Anope::string modelevel = token.substr(a + 1, b - a - 1);
mode.level = Anope::Convert<unsigned>(modelevel, 0);
a = b;
}
Anope::string::size_type c = token.find('=', a + 1);
if (c == Anope::string::npos)
return false;
mode.name = token.substr(a + 1, c - a - 1);
switch (token.length() - c)
{
case 2:
mode.letter = token[c + 1];
break;
case 3:
mode.symbol = token[c + 1];
mode.letter = token[c + 2];
break;
default:
return false;
}
if (Anope::ProtocolDebug)
{
Log(LOG_DEBUG) << "Parsed mode: type=" << mode.type << " name=" << mode.name << " level="
<< mode.level << " symbol=" << mode.symbol << " letter=" << mode.letter;
}
return true;
}
IRCDMessageCapab(Module *creator)
: IRCDMessage(creator, "CAPAB", 1)
{
SetFlag(FLAG_SOFT_LIMIT);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
if (params[0].equals_cs("START"))
{
spanningtree_proto_ver = 0;
if (params.size() >= 2)
spanningtree_proto_ver = Anope::Convert<size_t>(params[1], 0);
if (spanningtree_proto_ver < 1205)
throw ProtocolException("Protocol mismatch, no or invalid protocol version given in CAPAB START.");
Servers::Capab.clear();
IRCD->CanClearModes.clear();
IRCD->CanSQLineChannel = false;
IRCD->CanSVSHold = false;
IRCD->CanTagMessage = false;
IRCD->DefaultPseudoclientModes = "+oI";
}
else if (params[0].equals_cs("CHANMODES") && params.size() > 1)
{
spacesepstream ssep(params[1]);
Anope::string capab;
while (ssep.GetToken(capab))
{
ModeInfo mode;
if (!ParseMode(capab, mode))
continue;
ChannelMode *cm = NULL;
if (mode.name.equals_cs("admin"))
cm = new ChannelModeStatus("PROTECT", mode.letter, mode.symbol, mode.level);
else if (mode.name.equals_cs("allowinvite"))
{
cm = new ChannelMode("ALLINVITE", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("INVITEBAN", "", 'A'));
}
else if (mode.name.equals_cs("auditorium"))
cm = new ChannelMode("AUDITORIUM", mode.letter);
else if (mode.name.equals_cs("autoop"))
cm = new InspIRCdAutoOpMode(mode.letter);
else if (mode.name.equals_cs("ban"))
cm = new ChannelModeList("BAN", mode.letter);
else if (mode.name.equals_cs("banexception"))
cm = new ChannelModeList("EXCEPT", mode.letter);
else if (mode.name.equals_cs("blockcaps"))
{
cm = new ChannelMode("BLOCKCAPS", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("BLOCKCAPSBAN", "", 'B'));
}
else if (mode.name.equals_cs("blockcolor"))
{
cm = new ChannelMode("BLOCKCOLOR", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("BLOCKCOLORBAN", "", 'c'));
}
else if (mode.name.equals_cs("c_registered"))
cm = new ChannelModeNoone("REGISTERED", mode.letter);
else if (mode.name.equals_cs("censor"))
cm = new ChannelMode("CENSOR", mode.letter);
else if (mode.name.equals_cs("delayjoin"))
cm = new ChannelMode("DELAYEDJOIN", mode.letter);
else if (mode.name.equals_cs("delaymsg"))
cm = new SimpleNumberParamMode("DELAYMSG", mode.letter);
else if (mode.name.equals_cs("filter"))
cm = new ChannelModeList("FILTER", mode.letter);
else if (mode.name.equals_cs("flood"))
cm = new ChannelModeFlood(mode.letter);
else if (mode.name.equals_cs("founder"))
cm = new ChannelModeStatus("OWNER", mode.letter, mode.symbol, mode.level);
else if (mode.name.equals_cs("halfop"))
cm = new ChannelModeStatus("HALFOP", mode.letter, mode.symbol, mode.level);
else if (mode.name.equals_cs("history"))
cm = new ChannelModeHistory(mode.letter);
else if (mode.name.equals_cs("invex"))
cm = new ChannelModeList("INVITEOVERRIDE", mode.letter);
else if (mode.name.equals_cs("inviteonly"))
cm = new ChannelMode("INVITE", mode.letter);
else if (mode.name.equals_cs("joinflood"))
cm = new ColonDelimitedParamMode("JOINFLOOD", mode.letter);
else if (mode.name.equals_cs("key"))
cm = new ChannelModeKey(mode.letter);
else if (mode.name.equals_cs("kicknorejoin"))
cm = new SimpleNumberParamMode("NOREJOIN", mode.letter);
else if (mode.name.equals_cs("limit"))
cm = new ChannelModeParam("LIMIT", mode.letter, true);
else if (mode.name.equals_cs("moderated"))
cm = new ChannelMode("MODERATED", mode.letter);
else if (mode.name.equals_cs("nickflood"))
cm = new ColonDelimitedParamMode("NICKFLOOD", mode.letter);
else if (mode.name.equals_cs("noctcp"))
{
cm = new ChannelMode("NOCTCP", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("NOCTCPBAN", "", 'C'));
}
else if (mode.name.equals_cs("noextmsg"))
cm = new ChannelMode("NOEXTERNAL", mode.letter);
else if (mode.name.equals_cs("nokick"))
{
cm = new ChannelMode("NOKICK", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("NOKICKBAN", "", 'Q'));
}
else if (mode.name.equals_cs("noknock"))
cm = new ChannelMode("NOKNOCK", mode.letter);
else if (mode.name.equals_cs("nonick"))
{
cm = new ChannelMode("NONICK", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("NONICKBAN", "", 'N'));
}
else if (mode.name.equals_cs("nonotice"))
{
cm = new ChannelMode("NONOTICE", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("NONOTICEBAN", "", 'T'));
}
else if (mode.name.equals_cs("official-join"))
cm = new ChannelModeStatus("OFFICIALJOIN", mode.letter, mode.symbol, mode.level);
else if (mode.name.equals_cs("op"))
cm = new ChannelModeStatus("OP", mode.letter, mode.symbol, mode.level);
else if (mode.name.equals_cs("operonly"))
{
cm = new ChannelModeOperOnly("OPERONLY", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::OperMatcher("OPERTYPEBAN", "", 'O', "opertype"));
}
else if (mode.name.equals_cs("operprefix"))
cm = new ChannelModeStatus("OPERPREFIX", mode.letter, mode.symbol, mode.level);
else if (mode.name.equals_cs("permanent"))
cm = new ChannelMode("PERM", mode.letter);
else if (mode.name.equals_cs("private"))
cm = new ChannelMode("PRIVATE", mode.letter);
else if (mode.name.equals_cs("redirect"))
cm = new ChannelModeRedirect(mode.letter);
else if (mode.name.equals_cs("reginvite"))
cm = new ChannelMode("REGISTEREDONLY", mode.letter);
else if (mode.name.equals_cs("regmoderated"))
cm = new ChannelMode("REGMODERATED", mode.letter);
else if (mode.name.equals_cs("secret"))
cm = new ChannelMode("SECRET", mode.letter);
else if (mode.name.equals_cs("sslonly"))
{
cm = new ChannelMode("SSL", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::FingerprintMatcher("SSLBAN", "", 'z'));
}
else if (mode.name.equals_cs("stripcolor"))
{
cm = new ChannelMode("STRIPCOLOR", mode.letter);
if (spanningtree_proto_ver < 1206)
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("STRIPCOLORBAN", "", 'S'));
}
else if (mode.name.equals_cs("topiclock"))
cm = new ChannelMode("TOPIC", mode.letter);
else if (mode.name.equals_cs("voice"))
cm = new ChannelModeStatus("VOICE", mode.letter, mode.symbol, mode.level);
// Handle unknown modes.
else if (mode.type.equals_cs("list"))
cm = new ChannelModeList(mode.name.upper(), mode.letter);
else if (mode.type.equals_cs("param-set"))
cm = new ChannelModeParam(mode.name.upper(), mode.letter, true);
else if (mode.type.equals_cs("param"))
cm = new ChannelModeParam(mode.name.upper(), mode.letter, false);
else if (mode.type.equals_cs("prefix"))
cm = new ChannelModeStatus(mode.name.upper(), mode.letter, mode.symbol, mode.level);
else if (mode.type.equals_cs("simple"))
cm = new ChannelMode(mode.name.upper(), mode.letter);
else
Log(LOG_DEBUG) << "Unknown channel mode: " << capab;
if (cm)
ModeManager::AddChannelMode(cm);
}
}
if (params[0].equals_cs("USERMODES") && params.size() > 1)
{
spacesepstream ssep(params[1]);
Anope::string capab;
while (ssep.GetToken(capab))
{
ModeInfo mode;
if (!ParseMode(capab, mode))
continue;
UserMode *um = NULL;
if (mode.name.equals_cs("bot"))
{
um = new UserMode("BOT", mode.letter);
IRCD->DefaultPseudoclientModes += mode.letter;
}
else if (mode.name.equals_cs("callerid"))
um = new UserMode("CALLERID", mode.letter);
else if (mode.name.equals_cs("cloak"))
um = new UserMode("CLOAK", mode.letter);
else if (mode.name.equals_cs("deaf"))
um = new UserMode("DEAF", mode.letter);
else if (mode.name.equals_cs("deaf_commonchan"))
um = new UserMode("COMMONCHANS", mode.letter);
else if (mode.name.equals_cs("helpop"))
um = new UserModeOperOnly("HELPOP", mode.letter);
else if (mode.name.equals_cs("hidechans"))
um = new UserMode("PRIV", mode.letter);
else if (mode.name.equals_cs("hideoper"))
um = new UserModeOperOnly("HIDEOPER", mode.letter);
else if (mode.name.equals_cs("invisible"))
um = new UserMode("INVIS", mode.letter);
else if (mode.name.equals_cs("invis-oper"))
um = new UserModeOperOnly("INVISIBLE_OPER", mode.letter);
else if (mode.name.equals_cs("oper"))
um = new UserModeOperOnly("OPER", mode.letter);
else if (mode.name.equals_cs("regdeaf"))
um = new UserMode("REGPRIV", mode.letter);
else if (mode.name.equals_cs("servprotect"))
{
um = new UserModeNoone("PROTECTED", mode.letter);
IRCD->DefaultPseudoclientModes += mode.letter;
}
else if (mode.name.equals_cs("showwhois"))
um = new UserMode("WHOIS", mode.letter);
else if (mode.name.equals_cs("u_censor"))
um = new UserMode("CENSOR", mode.letter);
else if (mode.name.equals_cs("u_registered"))
um = new UserModeNoone("REGISTERED", mode.letter);
else if (mode.name.equals_cs("u_stripcolor"))
um = new UserMode("STRIPCOLOR", mode.letter);
else if (mode.name.equals_cs("wallops"))
um = new UserMode("WALLOPS", mode.letter);
// Handle unknown modes.
else if (mode.type.equals_cs("param-set"))
um = new UserModeParam(mode.name.upper(), mode.letter);
else if (mode.type.equals_cs("simple"))
um = new UserMode(mode.name.upper(), mode.letter);
else
Log(LOG_DEBUG) << "Unknown user mode: " << capab;
if (um)
ModeManager::AddUserMode(um);
}
}
else if (params[0].equals_cs("EXTBANS"))
{
spacesepstream ssep(params[1]);
Anope::string capab;
while (ssep.GetToken(capab))
{
ExtBanInfo extban;
if (!ParseExtBan(capab, extban))
continue;
InspIRCdExtBan::Base *xb = nullptr;
if (extban.name.equals_cs("account"))
xb = new InspIRCdExtBan::AccountMatcher("ACCOUNTBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("blockcolor"))
xb = new InspIRCdExtBan::EntryMatcher("BLOCKCOLORBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("blockinvite"))
xb = new InspIRCdExtBan::EntryMatcher("INVITEBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("channel"))
xb = new InspIRCdExtBan::ChannelMatcher("CHANNELBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("fingerprint"))
xb = new InspIRCdExtBan::FingerprintMatcher("SSLBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("mute"))
xb = new InspIRCdExtBan::EntryMatcher("QUIET", extban.name, extban.letter);
else if (extban.name.equals_cs("noctcp"))
xb = new InspIRCdExtBan::EntryMatcher("NOCTCPBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("nokick"))
xb = new InspIRCdExtBan::EntryMatcher("NOKICKBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("nonick"))
xb = new InspIRCdExtBan::EntryMatcher("NONICKBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("nonotice"))
xb = new InspIRCdExtBan::EntryMatcher("NONOTICEBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("oper"))
xb = new InspIRCdExtBan::OperMatcher("OPERBAN", extban.name, extban.letter, "opername");
else if (extban.name.equals_cs("opertype"))
xb = new InspIRCdExtBan::OperMatcher("OPERTYPEBAN", extban.name, extban.letter, "opertype");
else if (extban.name.equals_cs("opmoderated"))
xb = new InspIRCdExtBan::EntryMatcher("OPMODERATEDBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("realname"))
xb = new InspIRCdExtBan::RealnameMatcher("REALNAMEBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("server"))
xb = new InspIRCdExtBan::ServerMatcher("SERVERBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("stripcolor"))
xb = new InspIRCdExtBan::EntryMatcher("STRIPCOLORBAN", extban.name, extban.letter);
else if (extban.name.equals_cs("unauthed"))
xb = new InspIRCdExtBan::UnidentifiedMatcher("UNREGISTEREDBAN", extban.name, extban.letter);
// Handle unknown extbans.
else if (extban.type.equals_cs("acting"))
xb = new InspIRCdExtBan::EntryMatcher(extban.name.upper() + "BAN", extban.name, extban.letter);
else
Log(LOG_DEBUG) << "Unknown extban: " << capab;
if (xb)
ModeManager::AddChannelMode(xb);
}
}
else if ((params[0].equals_cs("MODULES") || params[0].equals_cs("MODSUPPORT")) && params.size() > 1)
{
spacesepstream ssep(params[1]);
Anope::string module;
Anope::string inspircdregex;
while (ssep.GetToken(module))
{
Anope::string modname, moddata;
ParseModule(module, modname, moddata);
if (spanningtree_proto_ver >= 1206)
{
// InspIRCd v4
Anope::map<Anope::string> modmap;
ParseModuleData(moddata, modmap);
if (modname.equals_cs("account"))
Servers::Capab.insert("ACCOUNT");
else if (modname.equals_cs("cban"))
IRCD->CanSQLineChannel = true;
else if (modname.equals_cs("globops"))
Servers::Capab.insert("GLOBOPS");
else if (modname.equals_cs("rline"))
{
Servers::Capab.insert("RLINE");
auto iter = modmap.find("regex");
if (iter != modmap.end())
inspircdregex = "regex/" + iter->second;
}
else if (modname.equals_cs("services"))
{
IRCD->CanSVSHold = true;
Servers::Capab.insert("SERVICES");
Servers::Capab.insert("TOPICLOCK");
}
}
else
{
// InspIRCd v3
if (modname.equals_cs("cban") && moddata.equals_cs("glob"))
IRCD->CanSQLineChannel = true;
else if (modname.equals_cs("channelban"))
ModeManager::AddChannelMode(new InspIRCdExtBan::ChannelMatcher("CHANNELBAN", "", 'j'));
else if (modname.equals_cs("gecosban"))
ModeManager::AddChannelMode(new InspIRCdExtBan::RealnameMatcher("REALNAMEBAN", "", 'r'));
else if (modname.equals_cs("muteban"))
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("QUIET", "", 'm'));
else if (modname.equals_cs("nopartmsg"))
ModeManager::AddChannelMode(new InspIRCdExtBan::EntryMatcher("PARTMESSAGEBAN", "", 'p'));
else if (modname.equals_cs("rline"))
{
Servers::Capab.insert("RLINE");
inspircdregex = moddata;
}
else if (modname.equals_cs("serverban"))
ModeManager::AddChannelMode(new InspIRCdExtBan::ServerMatcher("SERVERBAN", "", 's'));
else if (modname.equals_cs("services_account"))
{
Servers::Capab.insert("ACCOUNT");
Servers::Capab.insert("SERVICES");
ModeManager::AddChannelMode(new InspIRCdExtBan::AccountMatcher("ACCOUNTBAN", "", 'R'));
ModeManager::AddChannelMode(new InspIRCdExtBan::UnidentifiedMatcher("UNREGISTEREDBAN", "", 'U'));
}
else if (modname.equals_cs("svshold"))
IRCD->CanSVSHold = true;
else if (modname.equals_cs("topiclock"))
Servers::Capab.insert("TOPICLOCK");
}
// InspIRCd v3 and v4
if (modname.equals_cs("chghost"))
Servers::Capab.insert("CHGHOST");
else if (modname.equals_cs("chgident"))
Servers::Capab.insert("CHGIDENT");
else if (modname.equals_cs("ircv3_ctctags"))
IRCD->CanTagMessage = true;
}
const auto &anoperegex = Config->GetBlock("options").Get<const Anope::string>("regexengine");
if (!anoperegex.empty() && !inspircdregex.empty() && anoperegex != inspircdregex)
Log() << "Warning: InspIRCd is using regex engine " << inspircdregex << ", but we have " << anoperegex << ". This may cause inconsistencies.";
}
else if (params[0].equals_cs("CAPABILITIES") && params.size() > 1)
{
spacesepstream ssep(params[1]);
Anope::string capab;
while (ssep.GetToken(capab))
{
auto [tokname, tokvalue] = ParseCapability(capab);
if (tokname == "CHALLENGE")
challenge = tokvalue;
if (tokname == "EXTBANFORMAT")
named_extbans = tokvalue.equals_ci("any") || tokvalue.equals_ci("name");
else if (tokname == "MAXCHANNEL")
IRCD->MaxChannel = Anope::Convert<size_t>(tokvalue, IRCD->MaxChannel);
else if (tokname == "MAXHOST")
IRCD->MaxHost = Anope::Convert<size_t>(tokvalue, IRCD->MaxHost);
else if (tokname == "MAXNICK")
IRCD->MaxNick = Anope::Convert<size_t>(tokvalue, IRCD->MaxNick);
else if (tokname == "MAXUSER")
IRCD->MaxUser = Anope::Convert<size_t>(tokvalue, IRCD->MaxUser);
// Deprecated 1205 keys.
else if (tokname == "CHANMAX")
IRCD->MaxChannel = Anope::Convert<size_t>(tokvalue, IRCD->MaxChannel);
else if (tokname == "GLOBOPS" && Anope::Convert<bool>(tokvalue, false))
Servers::Capab.insert("GLOBOPS");
else if (tokname == "IDENTMAX")
IRCD->MaxUser = Anope::Convert<size_t>(tokvalue, IRCD->MaxUser);
else if (tokname == "NICKMAX")
IRCD->MaxNick = Anope::Convert<size_t>(tokvalue, IRCD->MaxNick);
}
}
else if (params[0].equals_cs("END"))
{
if (spanningtree_proto_ver < 1206)
{
if (!Servers::Capab.count("ACCOUNT") || !Servers::Capab.count("SERVICES"))
throw ProtocolException("The services_account module is not loaded. This is required by Anope.");
}
else
{
if (!Servers::Capab.count("ACCOUNT"))
throw ProtocolException("The account module is not loaded. This is required by Anope.");
if (!Servers::Capab.count("SERVICES"))
throw ProtocolException("The services module is not loaded. This is required by Anope.");
for (auto *cm : ModeManager::GetChannelModes())
{
if (cm->type == MODE_LIST && cm->mchar)
IRCD->CanClearModes.insert(cm->name);
}
}
if (!ModeManager::FindUserModeByName("PRIV"))
throw ProtocolException("The hidechans module is not loaded. This is required by Anope.");
if (!IRCD->CanSVSHold)
Log() << "The remote server does not have the svshold module; fake users will be used for nick protection until the module is loaded.";
if (!IRCD->CanSQLineChannel)
Log() << "The remote server does not have the cban module; services will manually enforce forbidden channels until the module is loaded.";
if (!IRCD->CanTagMessage)
Log() << "The remote server does not have the ircv3_ctctags module; sending tag messages is disabled until the module is loaded.";
if (!Servers::Capab.count("CHGHOST"))
Log() << "The remote server does not have the chghost module; vhosts are disabled until the module is loaded.";
if (!Servers::Capab.count("CHGIDENT"))
Log() << "The remote server does not have the chgident module; vidents are disabled until the module is loaded.";
if (!Servers::Capab.count("GLOBOPS"))
Log() << "The remote server does not have the globops module; oper notices will be sent as announcements until the module is loaded.";
if (spanningtree_proto_ver < 1206)
Uplink::Send("SERVER", Me->GetName(), GetPassword(), 0, Me->GetSID(), Me->GetDescription());
else
Uplink::Send("SERVER", Me->GetName(), GetPassword(), Me->GetSID(), Me->GetDescription());
}
}
};
struct IRCDMessageChgHost final
: IRCDMessage
{
IRCDMessageChgHost(Module *creator)
: IRCDMessage(creator, "CHGHOST", 2)
{
SetFlag(FLAG_REQUIRE_USER);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
auto *u = User::Find(params[0]);
if (!u || u->server != Me)
return;
u->SetDisplayedHost(params[1]);
if (spanningtree_proto_ver >= 1206)
Uplink::Send(u, "FHOST", u->GetDisplayedHost(), '*');
else
Uplink::Send(u, "FHOST", u->GetDisplayedHost());
}
};
struct IRCDMessageChgIdent final
: IRCDMessage
{
IRCDMessageChgIdent(Module *creator)
: IRCDMessage(creator, "CHGIDENT", 2)
{
SetFlag(FLAG_REQUIRE_USER);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
auto *u = User::Find(params[0]);
if (!u || u->server != Me)
return;
u->SetIdent(params[1]);
if (spanningtree_proto_ver >= 1206)
Uplink::Send(u, "FIDENT", u->GetIdent(), '*');
else
Uplink::Send(u, "FIDENT", u->GetIdent());
}
};
struct IRCDMessageChgName final
: IRCDMessage
{
IRCDMessageChgName(Module *creator)
: IRCDMessage(creator, "CHGNAME", 2)
{
SetFlag(FLAG_REQUIRE_USER);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
auto *u = User::Find(params[0]);
if (!u || u->server != Me)
return;
u->SetRealname(params[1]);
Uplink::Send(u, "FNAME", u->realname);
}
};
struct IRCDMessageEncap final
: IRCDMessage
{
IRCDMessageEncap(Module *creator) : IRCDMessage(creator, "ENCAP", 2)
{
SetFlag(FLAG_SOFT_LIMIT);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
if (!Anope::Match(Me->GetSID(), params[0]) && !Anope::Match(Me->GetName(), params[0]))
return;
std::vector<Anope::string> newparams(params.begin() + 2, params.end());
Anope::ProcessInternal(source, params[1], newparams, tags);
}
};
struct IRCDMessageFHost final
: IRCDMessage
{
IRCDMessageFHost(Module *creator)
: IRCDMessage(creator, "FHOST", 1)
{
SetFlag(FLAG_REQUIRE_USER);
SetFlag(FLAG_SOFT_LIMIT);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
User *u = source.GetUser();
if (params[0] != "*")
{
if (u->HasMode("CLOAK"))
u->RemoveModeInternal(source, ModeManager::FindUserModeByName("CLOAK"));
u->SetDisplayedHost(params[0]);
}
if (params.size() > 1 && params[1] != "*")
u->host = params[1];
}
};
struct IRCDMessageFIdent final
: IRCDMessage
{
IRCDMessageFIdent(Module *creator)
: IRCDMessage(creator, "FIDENT", 1)
{
SetFlag(FLAG_REQUIRE_USER);
SetFlag(FLAG_SOFT_LIMIT);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
User *u = source.GetUser();
if (params[0] != "*")
u->SetDisplayedHost(params[0]);
}
};
struct IRCDMessageKick final
: IRCDMessage
{
IRCDMessageKick(Module *creator) : IRCDMessage(creator, "KICK", 3) { SetFlag(FLAG_SOFT_LIMIT); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
// Received: :715AAAAAA KICK #chan 715AAAAAD :reason
// Received: :715AAAAAA KICK #chan 628AAAAAA 4 :reason
Channel *c = Channel::Find(params[0]);
if (!c)
return;
const Anope::string &reason = params.size() > 3 ? params[3] : params[2];
c->KickInternal(source, params[1], reason);
}
};
struct IRCDMessageSASL final
: IRCDMessage
{
IRCDMessageSASL(Module *creator)
: IRCDMessage(creator, "SASL", 4)
{
SetFlag(FLAG_SOFT_LIMIT);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
if (!SASL::service)
return;
SASL::Message m;
m.source = params[0];
m.target = params[1];
m.type = params[2];
m.data.assign(params.begin() + 3, params.end());
SASL::service->ProcessMessage(m);
}
};
struct IRCDMessageSave final
: IRCDMessage
{
time_t last_collide = 0;
IRCDMessageSave(Module *creator) : IRCDMessage(creator, "SAVE", 2) { }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
User *targ = User::Find(params[0]);
auto ts = IRCD->ExtractTimestamp(params[1]);
if (!targ || !ts || targ->timestamp != ts)
return;
BotInfo *bi;
if (targ->server == Me && (bi = dynamic_cast<BotInfo *>(targ)))
{
if (last_collide == Anope::CurTime)
{
Anope::QuitReason = "Nick collision fight on " + targ->nick;
Anope::Quitting = true;
return;
}
IRCD->SendKill(Me, targ->nick, "Nick collision");
IRCD->SendNickChange(targ, targ->nick);
last_collide = Anope::CurTime;
}
else
targ->ChangeNick(targ->GetUID());
}
};
class IRCDMessageMetadata final
: IRCDMessage
{
private:
ServiceReference<CertService> certs;
PrimitiveExtensibleItem<ListLimits> &maxlist;
static void HandleAccountName(User *u, const Anope::string &value)
{
// :36D METADATA 9TSAAAAAA accountname
// :36D METADATA 9TSAAAAAA accountname Sadie
if (value.empty())
{
// The user has been logged out by the IRC server.
u->Logout();
}
else
{
// If we're bursting then then the user was probably logged in
// during a previous connection.
auto *nc = NickCore::Find(value);
if (nc)
u->Login(nc);
}
}
static void HandleCloakMethods(Server *s, const Anope::string &value)
{
// :9TS METADATA * cloakmethods :foo bar=baz bax
// We are only interested when it comes from our uplink.
if (s->GetUplink() != Me)
return;
spacesepstream tokens(value);
for (Anope::string token; tokens.GetToken(token); )
{
const auto idx = token.find('=');
if (token.compare(0, idx, "custom", 6) == 0)
{
if (!Servers::Capab.count("CLOAK"))
{
Log() << "The remote server has the custom cloak method; this will be used for setting vhosts.";
Servers::Capab.insert("CLOAK");
}
return;
}
}
if (Servers::Capab.count("CLOAK"))
{
Log() << "The remote server does not have the custom cloak method; CHGIDENT and CHGHOST will be used until the module is loaded.";
Servers::Capab.erase("CLOAK");
}
}
void HandleMaxList(Channel *c, const Anope::string &value)
{
ListLimits limits;
spacesepstream limitstream(value);
Anope::string modechr, modelimit;
while (limitstream.GetToken(modechr) && limitstream.GetToken(modelimit))
{
limits.emplace(modechr[0], Anope::Convert<unsigned>(modelimit, 0));
}
maxlist.Set(c, limits);
}
static void HandleMLock(Channel *c, const Anope::string &value)
{
// :36D METADATA #chan 69 nts
if (!c->ci)
return; // Not registered.
Anope::string modes;
const auto *modelocks = c->ci->GetExt<ModeLocks>("modelocks");
if (modelocks)
modes = modelocks->GetMLockAsString(false).replace_all_cs("+", "").replace_all_cs("-", "");
// Mode lock string is not what we say it is?
if (!modes.equals_cs(value))
Uplink::Send("METADATA", c->name, c->created, "mlock", modes);
}
static void HandleModules(Server *s, const Anope::string &value)
{
// :20D METADATA * modules +cloak=custom
// :20D METADATA * modules -cloak
// We are only interested when it comes from our uplink.
if (s->GetUplink() != Me)
return;
auto plus = (value[0] == '+');
if (!plus && value[0] != '-')
return; // Malformed.
bool required = false;
Anope::string capab, modname, moddata;
ParseModule(value.substr(1), modname, moddata);
if (modname.equals_cs("account"))
required = true;
else if (modname.equals_cs("cban"))
{
if (plus && (spanningtree_proto_ver >= 1206 || moddata == "glob"))
IRCD->CanSQLineChannel = true;
else
IRCD->CanSQLineChannel = false;
}
else if (modname.equals_cs("cban") && spanningtree_proto_ver >= 1206)
IRCD->CanSQLineChannel = plus;
else if (modname.equals_cs("chghost"))
capab = "CHGHOST";
else if (modname.equals_cs("chgident"))
capab = "CHGIDENT";
else if (modname.equals_cs("globops"))
capab = "GLOBOPS";
else if (modname.equals_cs("hidechans"))
required = true;
else if (modname.equals_cs("ircv3_ctctags"))
IRCD->CanTagMessage = plus;
else if (modname.equals_cs("rline"))
capab = "RLINE";
else if (modname.equals_cs("services"))
required = true;
// Deprecated 1205 modules.
else if (modname.equals_cs("services_account"))
required = true;
else if (modname.equals_cs("svshold"))
IRCD->CanSVSHold = plus;
else if (modname.equals_cs("topiclock"))
capab = "TOPICLOCK";
else
return;
if (required)
{
if (plus)
Log() << "Warning: InspIRCd unloaded the " << modname << " module. Anope won't function correctly without it.";
}
else
{
if (plus && !capab.empty())
Servers::Capab.insert(capab);
else if (!capab.empty())
Servers::Capab.erase(capab);
Log() << "InspIRCd " << (plus ? "loaded" : "unloaded") << " the " << modname << " module; adjusted functionality.";
}
}
void HandleSSLCert(User *u, const Anope::string &value)
{
// :409 METADATA 409AAAAAA ssl_cert :vTrSe c38070ce96e41cc144ed6590a68d45a6 <...> <...>
// :409 METADATA 409AAAAAC ssl_cert :vTrSE Could not get peer certificate: error:00000000:lib(0):func(0):reason(0)
u->Extend<bool>("ssl");
Anope::string data;
spacesepstream tokens(value);
if (!tokens.GetToken(data) || data.find('E') != Anope::string::npos || !tokens.GetToken(data))
return; // Malformed or no client certificate.
commasepstream fingerprints(data);
if (!fingerprints.GetToken(data))
return; // Should never happen?
// The first fingerprint is always the current one.
u->fingerprint = data;
FOREACH_MOD(OnFingerprint, (u));
// Any extra fingerprints are using backup algorithms.
while (certs && fingerprints.GetToken(data))
certs->ReplaceCert(data, u->fingerprint);
}
static void HandleTopicLock(Channel *c, const Anope::string &value)
{
// :36D METADATA #chan 69 1
if (!c->ci)
return; // Not registered.
auto localstate = c->ci->HasExt("TOPICLOCK");
auto remotestate = Anope::Convert<bool>(value, false);
if (localstate != remotestate)
Uplink::Send("METADATA", c->name, c->created, "topiclock", !!localstate);
}
public:
IRCDMessageMetadata(Module *creator, PrimitiveExtensibleItem<ListLimits> &listlimits)
: IRCDMessage(creator, "METADATA", 2)
, certs("CertService", "certs")
, maxlist(listlimits)
{
SetFlag(FLAG_REQUIRE_SERVER);
SetFlag(FLAG_SOFT_LIMIT);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
if (params[0][0] == '#')
{
// :<sid> METADATA <chan> <ts> <key> [<value>]
// Channel METADATA has an additional parameter: the channel ts.
// We ignore non-bursting servers to avoid pseudoserver fights.
if (params.size() < 3 || source.GetServer()->IsSynced())
return;
auto *c = Channel::Find(params[0]);
if (!c)
{
Log(LOG_DEBUG) << "Received a METADATA " << params[2] << " message for unintroduced channel " << params[0];
return;
}
const auto &value = params.size() > 3 ? params[3] : "";
if (params[1].equals_ci("maxlist"))
HandleMaxList(c, value);
else if (params[1].equals_ci("mlock"))
HandleMLock(c, value);
}
else if (isdigit(params[0][0]))
{
// :<sid> METADATA <uuid> <key> [<value>]
auto *u = User::Find(params[0]);
if (!u)
{
Log(LOG_DEBUG) << "Received a METADATA " << params[1] << " message for unintroduced user " << params[0];
return;
}
const auto &value = params.size() > 2 ? params[2] : "";
if (params[1].equals_ci("accountname"))
HandleAccountName(u, value);
else if (params[1].equals_ci("ssl_cert"))
HandleSSLCert(u, value);
}
else if (params[0] == "*")
{
// :<sid> METADATA * <key> [<value>]
auto *s = source.GetServer();
if (!s)
{
Log(LOG_DEBUG) << "Received a METADATA " << params[1] << " message from unintroduced server " << source.GetName();
return;
}
const auto &value = params.size() > 2 ? params[2] : "";
if (params[1].equals_ci("cloakmethods"))
HandleCloakMethods(s, value);
else if (params[1].equals_ci("modules"))
HandleModules(s, value);
}
}
};
struct IRCDMessageEndburst final
: IRCDMessage
{
IRCDMessageEndburst(Module *creator) : IRCDMessage(creator, "ENDBURST", 0) { SetFlag(FLAG_REQUIRE_SERVER); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
Server *s = source.GetServer();
Log(LOG_DEBUG) << "Processed ENDBURST for " << s->GetName();
s->Sync(true);
}
};
struct IRCDMessageFJoin final
: IRCDMessage
{
IRCDMessageFJoin(Module *creator) : IRCDMessage(creator, "FJOIN", 2) { SetFlag(FLAG_REQUIRE_SERVER); SetFlag(FLAG_SOFT_LIMIT); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
std::list<Message::Join::SJoinUser> users;
spacesepstream sep(params[params.size() - 1]);
Anope::string buf;
while (sep.GetToken(buf))
{
Message::Join::SJoinUser sju;
/* Loop through prefixes and find modes for them */
for (char c; (c = buf[0]) != ',' && c;)
{
buf.erase(buf.begin());
sju.first.AddMode(c);
}
/* Erase the , */
if (!buf.empty())
buf.erase(buf.begin());
/* Erase the :membid */
if (!buf.empty())
{
Anope::string::size_type membid = buf.find(':');
if (membid != Anope::string::npos)
buf.erase(membid, Anope::string::npos);
}
sju.second = User::Find(buf);
if (!sju.second)
{
Log(LOG_DEBUG) << "FJOIN for nonexistent user " << buf << " on " << params[0];
continue;
}
users.push_back(sju);
}
auto ts = IRCD->ExtractTimestamp(params[1]);
Message::Join::SJoin(source, params[0], ts, params[2], { params.begin() + 3, params.end() - 1 }, users);
}
};
struct IRCDMessageFMode final
: IRCDMessage
{
IRCDMessageFMode(Module *creator) : IRCDMessage(creator, "FMODE", 3) { SetFlag(FLAG_SOFT_LIMIT); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
/* :source FMODE #test 12345678 +nto foo */
Channel *c = Channel::Find(params[0]);
auto ts = IRCD->ExtractTimestamp(params[1]);
if (c)
c->SetModesInternal(source, params[2], { params.begin() + 3, params.end() }, ts);
}
};
struct IRCDMessageFTopic final
: IRCDMessage
{
IRCDMessageFTopic(Module *creator) : IRCDMessage(creator, "FTOPIC", 4) { SetFlag(FLAG_SOFT_LIMIT); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
// :source FTOPIC channel ts topicts :topic
// :source FTOPIC channel ts topicts setby :topic (burst or RESYNC)
auto ts = IRCD->ExtractTimestamp(params[2]);
const Anope::string &setby = params.size() > 4 ? params[3] : source.GetName();
const Anope::string &topic = params.size() > 4 ? params[4] : params[3];
Channel *c = Channel::Find(params[0]);
if (c)
c->ChangeTopicInternal(NULL, setby, topic, ts);
}
};
struct IRCDMessageIdle final
: IRCDMessage
{
IRCDMessageIdle(Module *creator) : IRCDMessage(creator, "IDLE", 1) { }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
BotInfo *bi = BotInfo::Find(params[0]);
if (bi)
Uplink::Send(bi, "IDLE", source.GetSource(), bi->signon, Anope::CurTime - bi->lastmsg);
else
{
User *u = User::Find(params[0]);
if (u && u->server == Me)
Uplink::Send(u, "IDLE", source.GetSource(), u->signon, 0);
}
}
};
struct IRCDMessageIJoin final
: IRCDMessage
{
IRCDMessageIJoin(Module *creator) : IRCDMessage(creator, "IJOIN", 2) { SetFlag(FLAG_REQUIRE_USER); SetFlag(FLAG_SOFT_LIMIT); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
// :<uid> IJOIN <chan> <membid> [<ts> [<flags>]]
Channel *c = Channel::Find(params[0]);
if (!c)
{
// When receiving an IJOIN, first check if the target channel exists. If it does not exist,
// ignore the join (that is, do not create the channel) and send a RESYNC back to the source.
Uplink::Send("RESYNC", params[0]);
return;
}
// If the channel does exist then join the user, and in case any prefix modes were sent (found in
// the 3rd parameter), compare the TS of the channel to the TS in the IJOIN (2nd parameter). If
// the timestamps match, set the modes on the user, otherwise ignore the modes.
Message::Join::SJoinUser user;
user.second = source.GetUser();
time_t chants = Anope::CurTime;
if (params.size() >= 4)
{
chants = IRCD->ExtractTimestamp(params[2]);
for (auto mode : params[3])
user.first.AddMode(mode);
}
std::list<Message::Join::SJoinUser> users;
users.push_back(user);
Message::Join::SJoin(source, params[0], chants, "", {}, users);
}
};
struct IRCDMessageLMode final
: IRCDMessage
{
IRCDMessageLMode(Module *creator)
: IRCDMessage(creator, "LMODE", 3)
{
SetFlag(FLAG_SOFT_LIMIT);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
// :<sid> LMODE <chan> <chants> <modechr> [<mask> <setter> <setts>]+
auto *chan = Channel::Find(params[0]);
if (!chan)
return; // Channel doesn't exist.
// If the TS is greater than ours, we drop the mode and don't pass it anywhere.
auto chants = IRCD->ExtractTimestamp(params[1]);
if (chants > chan->created)
return;
auto *cm = ModeManager::FindChannelModeByChar(params[2][0]);
if (!cm || cm->type != MODE_LIST)
return; // Mode doesn't exist or isn't a list mode.
if (params.size() % 3)
return; // Invalid parameter count.
for (auto it = params.begin() + 3; it != params.end(); )
{
ModeData data;
data.value = *it++;
data.set_by = *it++;
data.set_at = Anope::Convert(*it++, 0);
chan->SetModeInternal(source, cm, data, true);
}
}
};
struct IRCDMessageMode final
: IRCDMessage
{
IRCDMessageMode(Module *creator) : IRCDMessage(creator, "MODE", 2) { SetFlag(FLAG_SOFT_LIMIT); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
if (IRCD->IsChannelValid(params[0]))
{
Channel *c = Channel::Find(params[0]);
if (c)
c->SetModesInternal(source, params[2], { params.begin() + 3, params.end() });
}
else
{
/* InspIRCd lets opers change another
users modes, we have to kludge this
as it slightly breaks RFC1459
*/
User *u = User::Find(params[0]);
if (u)
u->SetModesInternal(source, params[1]);
}
}
};
struct IRCDMessageNick final
: IRCDMessage
{
IRCDMessageNick(Module *creator) : IRCDMessage(creator, "NICK", 2) { SetFlag(FLAG_REQUIRE_USER); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
source.GetUser()->ChangeNick(params[0]);
}
};
struct IRCDMessageOperType final
: IRCDMessage
{
PrimitiveExtensibleItem<Anope::string> opername;
PrimitiveExtensibleItem<Anope::string> opertype;
IRCDMessageOperType(Module *creator)
: IRCDMessage(creator, "OPERTYPE", 1)
, opername(creator, "opername")
, opertype(creator, "opertype")
{
SetFlag(FLAG_REQUIRE_USER);
}
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
/* opertype is equivalent to mode +o because servers
don't do this directly */
User *u = source.GetUser();
if (!u->HasMode("OPER"))
u->SetModesInternal(source, "+o");
opertype.Set(u, params[0]);
const auto it = tags.find("~name");
if (it == tags.end())
opername.Unset(u);
else
opername.Set(u, it->second);
}
};
struct IRCDMessagePing final
: IRCDMessage
{
IRCDMessagePing(Module *creator) : IRCDMessage(creator, "PING", 1) { SetFlag(FLAG_SOFT_LIMIT); SetFlag(FLAG_REQUIRE_SERVER); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
if (params[0] == Me->GetSID())
IRCD->SendPong(params[0], source.GetServer()->GetSID());
}
};
struct IRCDMessageRSQuit final
: IRCDMessage
{
IRCDMessageRSQuit(Module *creator) : IRCDMessage(creator, "RSQUIT", 1) { SetFlag(FLAG_SOFT_LIMIT); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
Server *s = Server::Find(params[0]);
const Anope::string &reason = params.size() > 1 ? params[1] : "";
if (!s)
return;
Uplink::Send("SQUIT", s->GetSID(), reason);
s->Delete(s->GetName() + " " + s->GetUplink()->GetName());
}
};
struct IRCDMessageServer final
: IRCDMessage
{
IRCDMessageServer(Module *creator) : IRCDMessage(creator, "SERVER", 3) { SetFlag(FLAG_REQUIRE_SERVER); SetFlag(FLAG_SOFT_LIMIT); }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
size_t paramcount = spanningtree_proto_ver < 1206 ? 5 : 4;
if (!source.GetServer() && params.size() == paramcount)
{
/*
* SERVER testnet.inspircd.org hunter7 0 123 :InspIRCd Test Network
* 0: name
* 1: pass
* 2: unused (v3 only)
* 3(2): numeric
* 4(3): desc
*/
new Server(Me, params[0], 0, params.back(), params[spanningtree_proto_ver < 1206 ? 3 : 2]);
}
else if (source.GetServer())
{
/*
* SERVER testnet.inspircd.org 123 burst=1234 hidden=0 :InspIRCd Test Network
* 0: name
* 1: numeric
* 2 to N-1: various key=value pairs.
* N: desc
*/
new Server(source.GetServer(), params[0], 1, params.back(), params[1]);
}
}
};
struct IRCDMessageSQuit final
: Message::SQuit
{
IRCDMessageSQuit(Module *creator) : Message::SQuit(creator) { }
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
if (params[0] == rsquit_id || params[0] == rsquit_server)
{
/* squit for a recently squit server, introduce the juped server now */
Server *s = Server::Find(rsquit_server);
rsquit_id.clear();
rsquit_server.clear();
if (s && s->IsJuped())
IRCD->SendServer(s);
}
else
Message::SQuit::Run(source, params, tags);
}
};
struct IRCDMessageUID final
: IRCDMessage
{
IRCDMessageUID(Module *creator) : IRCDMessage(creator, "UID", 8) { SetFlag(FLAG_REQUIRE_SERVER); SetFlag(FLAG_SOFT_LIMIT); }
/*
* [Nov 03 22:09:58.176252 2009] debug: Received: :964 UID 964AAAAAC 1225746297 w00t2 localhost testnet.user w00t 127.0.0.1 1225746302 +iosw +ACGJKLNOQcdfgjklnoqtx :Robin Burchell <w00t@inspircd.org>
* 0: uid
* 1: ts
* 2: nick
* 3: host
* 4: dhost
* 5: ident
* 6: dident (v4 only)
* 7: ip
* 8: signon
* 9+: modes and params -- IMPORTANT, some modes (e.g. +s) may have parameters. So don't assume a fixed position of realname!
* last: realname
*/
void Run(MessageSource &source, const std::vector<Anope::string> &params, const Anope::map<Anope::string> &tags) override
{
size_t offset = params[8][0] == '+' ? 0 : 1;
auto ts = IRCD->ExtractTimestamp(params[1]);
NickAlias *na = NULL;
if (SASL::service)
for (std::list<SASLUser>::iterator it = saslusers.begin(); it != saslusers.end();)
{
SASLUser &u = *it;
if (u.created + 30 < Anope::CurTime)
it = saslusers.erase(it);
else if (u.uid == params[0])
{
na = NickAlias::Find(u.acc);
it = saslusers.erase(it);
}
else
++it;
}
auto *u = User::OnIntroduce(params[2], params[5+offset], params[3], params[4], params[6+offset], source.GetServer(), params[params.size() - 1], ts, params[8 + offset], params[0], na ? *na->nc : NULL, { params.begin() + 9 + offset, params.end() - 1 });
if (u)
u->signon = IRCD->ExtractTimestamp(params[7+offset]);
}
};
class ProtoInspIRCd final
: public Module
{
InspIRCdProto ircd_proto;
ExtensibleItem<bool> ssl;
/* Core message handlers */
Message::Time message_alltime;
Message::Error message_error;
Message::Invite message_invite;
Message::Kill message_kill;
Message::MOTD message_motd;
Message::Notice message_notice;
Message::Part message_part;
Message::Privmsg message_privmsg;
Message::Quit message_quit;
Message::Privmsg message_squery;
Message::Stats message_stats;
Message::Time message_time;
/* Ignored message handlers. */
Message::Ignore message_burst;
Message::Ignore message_sinfo;
/* Our message handlers */
IRCDMessageAway message_away;
IRCDMessageCapab message_capab;
IRCDMessageChgHost message_chghost;
IRCDMessageChgIdent message_chgident;
IRCDMessageChgName message_chgname;
IRCDMessageEncap message_encap;
IRCDMessageEndburst message_endburst;
IRCDMessageFHost message_fhost;
IRCDMessageFIdent message_fident;
IRCDMessageFJoin message_fjoin;
IRCDMessageFMode message_fmode;
IRCDMessageFTopic message_ftopic;
IRCDMessageIdle message_idle;
IRCDMessageIJoin message_ijoin;
IRCDMessageKick message_kick;
IRCDMessageLMode message_lmode;
IRCDMessageMetadata message_metadata;
IRCDMessageMode message_mode;
IRCDMessageNick message_nick;
IRCDMessageOperType message_opertype;
IRCDMessagePing message_ping;
IRCDMessageRSQuit message_rsquit;
IRCDMessageSASL message_sasl;
IRCDMessageSave message_save;
IRCDMessageServer message_server;
IRCDMessageSQuit message_squit;
IRCDMessageUID message_uid;
static void SendChannelMetadata(Channel *c, const Anope::string &metadataname, const Anope::string &value)
{
Uplink::Send("METADATA", c->name, c->created, metadataname, value);
}
public:
ProtoInspIRCd(const Anope::string &modname, const Anope::string &creator)
: Module(modname, creator, PROTOCOL | VENDOR)
, ircd_proto(this), ssl(this, "ssl")
, message_alltime(this, "ALLTIME")
, message_error(this)
, message_invite(this)
, message_kill(this)
, message_motd(this)
, message_notice(this)
, message_part(this)
, message_privmsg(this)
, message_quit(this)
, message_squery(this, "SQUERY")
, message_stats(this)
, message_time(this)
, message_burst(this, "BURST")
, message_sinfo(this, "SINFO")
, message_away(this)
, message_capab(this)
, message_chghost(this)
, message_chgident(this)
, message_chgname(this)
, message_encap(this)
, message_endburst(this)
, message_fhost(this)
, message_fident(this)
, message_fjoin(this)
, message_fmode(this)
, message_ftopic(this)
, message_idle(this)
, message_ijoin(this)
, message_kick(this)
, message_lmode(this)
, message_metadata(this, ircd_proto.maxlist)
, message_mode(this)
, message_nick(this)
, message_opertype(this)
, message_ping(this)
, message_rsquit(this)
, message_sasl(this)
, message_save(this)
, message_server(this)
, message_squit(this)
, message_uid(this)
{
}
void OnUserNickChange(User *u, const Anope::string &) override
{
u->RemoveModeInternal(Me, ModeManager::FindUserModeByName("REGISTERED"));
}
void OnChannelSync(Channel *c) override
{
if (c->ci)
this->OnChanRegistered(c->ci);
}
void OnChanRegistered(ChannelInfo *ci) override
{
ModeLocks *modelocks = ci->GetExt<ModeLocks>("modelocks");
if (ci->c && modelocks && !modelocks->GetMLockAsString(false).empty())
{
Anope::string modes = modelocks->GetMLockAsString(false).replace_all_cs("+", "").replace_all_cs("-", "");
SendChannelMetadata(ci->c, "mlock", modes);
}
if (Servers::Capab.count("TOPICLOCK") && ci->c)
{
if (ci->HasExt("TOPICLOCK"))
SendChannelMetadata(ci->c, "topiclock", "1");
}
}
void OnDelChan(ChannelInfo *ci) override
{
if (!ci->c)
return;
SendChannelMetadata(ci->c, "mlock", "");
if (Servers::Capab.count("TOPICLOCK"))
SendChannelMetadata(ci->c, "topiclock", "");
}
EventReturn OnMLock(ChannelInfo *ci, ModeLock *lock) override
{
ModeLocks *modelocks = ci->GetExt<ModeLocks>("modelocks");
ChannelMode *cm = ModeManager::FindChannelModeByName(lock->name);
if (cm && ci->c && modelocks && (cm->type == MODE_REGULAR || cm->type == MODE_PARAM))
{
Anope::string modes = modelocks->GetMLockAsString(false).replace_all_cs("+", "").replace_all_cs("-", "") + cm->mchar;
SendChannelMetadata(ci->c, "mlock", modes);
}
return EVENT_CONTINUE;
}
EventReturn OnUnMLock(ChannelInfo *ci, ModeLock *lock) override
{
ModeLocks *modelocks = ci->GetExt<ModeLocks>("modelocks");
ChannelMode *cm = ModeManager::FindChannelModeByName(lock->name);
if (cm && ci->c && modelocks && (cm->type == MODE_REGULAR || cm->type == MODE_PARAM))
{
Anope::string modes = modelocks->GetMLockAsString(false).replace_all_cs("+", "").replace_all_cs("-", "").replace_all_cs(cm->mchar, "");
SendChannelMetadata(ci->c, "mlock", modes);
}
return EVENT_CONTINUE;
}
EventReturn OnSetChannelOption(CommandSource &source, Command *cmd, ChannelInfo *ci, const Anope::string &setting) override
{
if (cmd->name == "chanserv/topic" && ci->c)
{
if (setting == "topiclock on")
SendChannelMetadata(ci->c, "topiclock", "1");
else if (setting == "topiclock off")
SendChannelMetadata(ci->c, "topiclock", "0");
}
return EVENT_CONTINUE;
}
};
MODULE_INIT(ProtoInspIRCd)
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