diff options
Diffstat (limited to 'modules/chanserv/cs_ban.cpp')
| -rw-r--r-- | modules/chanserv/cs_ban.cpp | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/modules/chanserv/cs_ban.cpp b/modules/chanserv/cs_ban.cpp new file mode 100644 index 000000000..d400631ab --- /dev/null +++ b/modules/chanserv/cs_ban.cpp @@ -0,0 +1,260 @@ +/* ChanServ core functions + * + * (C) 2003-2024 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" + +static Module *me; + +class TempBan final + : public Timer +{ +private: + Anope::string channel; + Anope::string mask; + Anope::string mode; + +public: + TempBan(time_t seconds, Channel *c, const Anope::string &banmask, const Anope::string &mod) + : Timer(me, seconds) + , channel(c->name) + , mask(banmask) + , mode(mod) + { + } + + void Tick() override + { + Channel *c = Channel::Find(this->channel); + if (c) + c->RemoveMode(NULL, mode, this->mask); + } +}; + +class CommandCSBan final + : public Command +{ +public: + CommandCSBan(Module *creator) : Command(creator, "chanserv/ban", 2, 4) + { + this->SetDesc(_("Bans a given nick or mask on a channel")); + this->SetSyntax(_("\037channel\037 [+\037expiry\037] {\037nick\037 | \037mask\037} [\037reason\037]")); + } + + void Execute(CommandSource &source, const std::vector<Anope::string> ¶ms) override + { + Configuration::Block *block = Config->GetCommand(source); + const Anope::string &mode = block->Get<Anope::string>("mode", "BAN"); + ChannelMode *cm = ModeManager::FindChannelModeByName(mode); + if (cm == NULL) + return; + + const Anope::string &chan = params[0]; + ChannelInfo *ci = ChannelInfo::Find(chan); + if (ci == NULL) + { + source.Reply(CHAN_X_NOT_REGISTERED, chan.c_str()); + return; + } + + Channel *c = ci->c; + if (c == NULL) + { + source.Reply(CHAN_X_NOT_IN_USE, chan.c_str()); + return; + } + else if (IRCD->GetMaxListFor(c, cm) && c->HasMode(mode) >= IRCD->GetMaxListFor(c, cm)) + { + source.Reply(_("The %s list for %s is full."), mode.lower().c_str(), c->name.c_str()); + return; + } + + Anope::string expiry, target, reason; + time_t ban_time; + if (params[1][0] == '+') + { + ban_time = Anope::DoTime(params[1]); + if (ban_time < 0) + { + source.Reply(BAD_EXPIRY_TIME); + return; + } + if (params.size() < 3) + { + this->SendSyntax(source); + return; + } + target = params[2]; + reason = "Requested"; + if (params.size() > 3) + reason = params[3]; + } + else + { + ban_time = 0; + target = params[1]; + reason = "Requested"; + if (params.size() > 2) + reason = params[2]; + if (params.size() > 3) + reason += " " + params[3]; + } + + unsigned reasonmax = Config->GetModule("chanserv")->Get<unsigned>("reasonmax", "200"); + if (reason.length() > reasonmax) + reason = reason.substr(0, reasonmax); + + Anope::string signkickformat = Config->GetModule("chanserv")->Get<Anope::string>("signkickformat", "%m (%n)"); + signkickformat = signkickformat.replace_all_cs("%n", source.GetNick()); + + User *u = source.GetUser(); + User *u2 = User::Find(target, true); + + AccessGroup u_access = source.AccessFor(ci); + + if (!u_access.HasPriv("BAN") && !source.HasPriv("chanserv/kick")) + source.Reply(ACCESS_DENIED); + else if (u2) + { + AccessGroup u2_access = ci->AccessFor(u2); + + if (u != u2 && ci->HasExt("PEACE") && u2_access >= u_access && !source.HasPriv("chanserv/kick")) + source.Reply(ACCESS_DENIED); + /* + * Don't ban/kick the user on channels where they are excepted + * to prevent services <-> server wars. + */ + else if (c->MatchesList(u2, "EXCEPT")) + source.Reply(CHAN_EXCEPTED, u2->nick.c_str(), ci->name.c_str()); + else if (u2->IsProtected()) + source.Reply(ACCESS_DENIED); + else + { + Anope::string mask = ci->GetIdealBan(u2); + + bool override = !u_access.HasPriv("BAN") || (u != u2 && ci->HasExt("PEACE") && u2_access >= u_access); + Log(override ? LOG_OVERRIDE : LOG_COMMAND, source, this, ci) << "for " << mask; + + if (!c->HasMode(mode, mask)) + { + c->SetMode(NULL, mode, mask); + if (ban_time) + { + new TempBan(ban_time, c, mask, mode); + source.Reply(_("Ban on \002%s\002 expires in %s."), mask.c_str(), Anope::Duration(ban_time, source.GetAccount()).c_str()); + } + } + + /* We still allow host banning while not allowing to kick */ + if (!c->FindUser(u2)) + return; + + if (block->Get<bool>("kick", "yes")) + { + if (ci->HasExt("SIGNKICK") || (ci->HasExt("SIGNKICK_LEVEL") && !source.AccessFor(ci).HasPriv("SIGNKICK"))) + { + signkickformat = signkickformat.replace_all_cs("%m", reason); + c->Kick(ci->WhoSends(), u2, signkickformat); + } + else + c->Kick(ci->WhoSends(), u2, reason); + } + } + } + else + { + bool founder = u_access.HasPriv("FOUNDER"); + bool override = !founder && !u_access.HasPriv("BAN"); + + Anope::string mask = IRCD->NormalizeMask(target); + + Log(override ? LOG_OVERRIDE : LOG_COMMAND, source, this, ci) << "for " << mask; + + if (!c->HasMode(mode, mask)) + { + c->SetMode(NULL, mode, mask); + if (ban_time) + { + new TempBan(ban_time, c, mask, mode); + source.Reply(_("Ban on \002%s\002 expires in %s."), mask.c_str(), Anope::Duration(ban_time, source.GetAccount()).c_str()); + } + } + + int matched = 0, kicked = 0; + for (Channel::ChanUserList::iterator it = c->users.begin(), it_end = c->users.end(); it != it_end;) + { + ChanUserContainer *uc = it->second; + ++it; + + Entry e(mode, mask); + if (e.Matches(uc->user)) + { + ++matched; + + AccessGroup u2_access = ci->AccessFor(uc->user); + + if (matched > 1 && !founder) + continue; + if (u != uc->user && ci->HasExt("PEACE") && u2_access >= u_access) + continue; + else if (ci->c->MatchesList(uc->user, "EXCEPT")) + continue; + else if (uc->user->IsProtected()) + continue; + + if (block->Get<bool>("kick", "yes")) + { + ++kicked; + if (ci->HasExt("SIGNKICK") || (ci->HasExt("SIGNKICK_LEVEL") && !u_access.HasPriv("SIGNKICK"))) + { + reason += " (Matches " + mask + ")"; + signkickformat = signkickformat.replace_all_cs("%m", reason); + c->Kick(ci->WhoSends(), uc->user, signkickformat); + } + else + c->Kick(ci->WhoSends(), uc->user, "%s (Matches %s)", reason.c_str(), mask.c_str()); + } + } + } + + if (matched) + source.Reply(_("Kicked %d/%d users matching %s from %s."), kicked, matched, mask.c_str(), c->name.c_str()); + else + source.Reply(_("No users on %s match %s."), c->name.c_str(), mask.c_str()); + } + } + + bool OnHelp(CommandSource &source, const Anope::string &subcommand) override + { + this->SendSyntax(source); + source.Reply(" "); + source.Reply(_("Bans a given nick or mask on a channel. An optional expiry may\n" + "be given to cause services to remove the ban after a set amount\n" + "of time.\n" + " \n" + "By default, limited to AOPs or those with level 5 access\n" + "and above on the channel. Channel founders may ban masks.")); + return true; + } +}; + +class CSBan final + : public Module +{ + CommandCSBan commandcsban; + +public: + CSBan(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, VENDOR), commandcsban(this) + { + me = this; + } +}; + +MODULE_INIT(CSBan) |