X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_check.cpp;h=5434f805496b9ee54628d7b65a29aa63690aa5b5;hb=0e5081e87c1609d3c4a9855775ee562ceab485f6;hp=c99e985cc3dab16c3c00b1a07eb17f26a9615bc3;hpb=bab14f0dd2345c9d7dcbc47c918563709e1ac094;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_check.cpp b/src/modules/m_check.cpp index c99e985cc..5434f8054 100644 --- a/src/modules/m_check.cpp +++ b/src/modules/m_check.cpp @@ -1 +1,337 @@ -/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2007 InspIRCd Development Team * See: http://www.inspircd.org/wiki/index.php/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #include "inspircd.h" #include "users.h" #include "channels.h" #include "modules.h" #include "wildcard.h" /* $ModDesc: Provides the /check command to retrieve information on a user, channel, or IP address */ /** Handle /CHECK */ class cmd_check : public command_t { public: cmd_check (InspIRCd* Instance) : command_t(Instance,"CHECK", 'o', 1) { this->source = "m_check.so"; syntax = "|||"; } CmdResult Handle (const char** parameters, int pcnt, userrec *user) { userrec *targuser; chanrec *targchan; std::string checkstr; std::string chliststr; char timebuf[60]; struct tm *mytime; checkstr = "304 " + std::string(user->nick) + " :CHECK"; targuser = ServerInstance->FindNick(parameters[0]); targchan = ServerInstance->FindChan(parameters[0]); /* * Syntax of a /check reply: * :server.name 304 target :CHECK START * :server.name 304 target :CHECK * :server.name 304 target :CHECK END */ user->WriteServ(checkstr + " START " + parameters[0]); if (targuser) { /* /check on a user */ user->WriteServ(checkstr + " nuh " + targuser->GetFullHost()); user->WriteServ(checkstr + " realnuh " + targuser->GetFullRealHost()); user->WriteServ(checkstr + " realname " + targuser->fullname); user->WriteServ(checkstr + " modes +" + targuser->FormatModes()); user->WriteServ(checkstr + " snomasks +" + targuser->FormatNoticeMasks()); user->WriteServ(checkstr + " server " + targuser->server); if (IS_AWAY(targuser)) { /* user is away */ user->WriteServ(checkstr + " awaymsg " + targuser->awaymsg); } if (IS_OPER(targuser)) { /* user is an oper of type ____ */ user->WriteServ(checkstr + " opertype " + irc::Spacify(targuser->oper)); } if (IS_LOCAL(targuser)) { /* port information is only held for a local user! */ user->WriteServ(checkstr + " onport " + ConvToStr(targuser->GetPort())); } chliststr = targuser->ChannelList(targuser); std::stringstream dump(chliststr); ServerInstance->DumpText(user,checkstr + " onchans ", dump); } else if (targchan) { /* /check on a channel */ time_t creation_time = targchan->created; time_t topic_time = targchan->topicset; mytime = gmtime(&creation_time); strftime(timebuf, 59, "%Y/%m/%d - %H:%M:%S", mytime); user->WriteServ(checkstr + " created " + timebuf); if (targchan->topic[0] != 0) { /* there is a topic, assume topic related information exists */ user->WriteServ(checkstr + " topic " + targchan->topic); user->WriteServ(checkstr + " topic_setby " + targchan->setby); mytime = gmtime(&topic_time); strftime(timebuf, 59, "%Y/%m/%d - %H:%M:%S", mytime); user->WriteServ(checkstr + " topic_setat " + timebuf); } user->WriteServ(checkstr + " modes " + targchan->ChanModes(true)); user->WriteServ(checkstr + " membercount " + ConvToStr(targchan->GetUserCounter())); /* now the ugly bit, spool current members of a channel. :| */ CUList *ulist= targchan->GetUsers(); /* note that unlike /names, we do NOT check +i vs in the channel */ for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) { char tmpbuf[MAXBUF]; /* * Unlike Asuka, I define a clone as coming from the same host. --w00t */ snprintf(tmpbuf, MAXBUF, "%lu %s%s (%s@%s) %s ", i->first->GlobalCloneCount(), targchan->GetAllPrefixChars(i->first), i->first->nick, i->first->ident, i->first->dhost, i->first->fullname); user->WriteServ(checkstr + " member " + tmpbuf); } } else { /* /check on an IP address, or something that doesn't exist */ long x = 0; /* hostname or other */ for (user_hash::const_iterator a = ServerInstance->clientlist->begin(); a != ServerInstance->clientlist->end(); a++) { if (match(a->second->host, parameters[0]) || match(a->second->dhost, parameters[0])) { /* host or vhost matches mask */ user->WriteServ(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost()); } /* IP address */ else if (match(a->second->GetIPString(), parameters[0], true)) { /* same IP. */ user->WriteServ(checkstr + " match " + ConvToStr(++x) + " " + a->second->GetFullRealHost()); } } user->WriteServ(checkstr + " matches " + ConvToStr(x)); } user->WriteServ(checkstr + " END " + std::string(parameters[0])); return CMD_LOCALONLY; } }; class ModuleCheck : public Module { private: cmd_check *mycommand; public: ModuleCheck(InspIRCd* Me) : Module(Me) { mycommand = new cmd_check(ServerInstance); ServerInstance->AddCommand(mycommand); } virtual ~ModuleCheck() { } virtual Version GetVersion() { return Version(1, 1, 0, 0, VF_VENDOR, API_VERSION); } void Implements(char* List) { /* we don't hook anything, nothing required */ } }; MODULE_INIT(ModuleCheck) \ No newline at end of file +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * Copyright (C) 2020 Matt Schatz + * Copyright (C) 2013-2016 Attila Molnar + * Copyright (C) 2013, 2017-2020 Sadie Powell + * Copyright (C) 2012, 2019 Robby + * Copyright (C) 2010 Craig Edwards + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2009 Uli Schlachter + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2006-2008 Robin Burchell + * + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + + +#include "inspircd.h" +#include "listmode.h" + +enum +{ + RPL_CHECK = 802 +}; + +class CheckContext +{ + private: + User* const user; + const std::string& target; + + std::string FormatTime(time_t ts) + { + std::string timestr(InspIRCd::TimeString(ts, "%Y-%m-%d %H:%M:%S UTC (", true)); + timestr.append(ConvToStr(ts)); + timestr.push_back(')'); + return timestr; + } + + public: + CheckContext(User* u, const std::string& targetstr) + : user(u) + , target(targetstr) + { + Write("START", target); + } + + ~CheckContext() + { + Write("END", target); + } + + void Write(const std::string& type, const std::string& text) + { + user->WriteRemoteNumeric(RPL_CHECK, type, text); + } + + void Write(const std::string& type, time_t ts) + { + user->WriteRemoteNumeric(RPL_CHECK, type, FormatTime(ts)); + } + + User* GetUser() const { return user; } + + void DumpListMode(ListModeBase* mode, Channel* chan) + { + const ListModeBase::ModeList* list = mode->GetList(chan); + if (!list) + return; + + for (ListModeBase::ModeList::const_iterator i = list->begin(); i != list->end(); ++i) + { + CheckContext::List listmode(*this, "listmode"); + listmode.Add(ConvToStr(mode->GetModeChar())); + listmode.Add(i->mask); + listmode.Add(i->setter); + listmode.Add(FormatTime(i->time)); + listmode.Flush(); + } + } + + void DumpExt(Extensible* ext) + { + CheckContext::List extlist(*this, "metadata"); + for(Extensible::ExtensibleStore::const_iterator i = ext->GetExtList().begin(); i != ext->GetExtList().end(); ++i) + { + ExtensionItem* item = i->first; + std::string value = item->ToHuman(ext, i->second); + if (!value.empty()) + Write("meta:" + item->name, value); + else if (!item->name.empty()) + extlist.Add(item->name); + } + + extlist.Flush(); + } + + class List : public Numeric::GenericBuilder<' ', false, Numeric::WriteRemoteNumericSink> + { + public: + List(CheckContext& context, const char* checktype) + : Numeric::GenericBuilder<' ', false, Numeric::WriteRemoteNumericSink>(Numeric::WriteRemoteNumericSink(context.GetUser()), RPL_CHECK, false, (IS_LOCAL(context.GetUser()) ? context.GetUser()->nick.length() : ServerInstance->Config->Limits.NickMax) + strlen(checktype) + 1) + { + GetNumeric().push(checktype).push(std::string()); + } + }; +}; + +/** Handle /CHECK + */ +class CommandCheck : public Command +{ + UserModeReference snomaskmode; + + std::string GetSnomasks(User* user) + { + std::string ret; + if (snomaskmode) + ret = snomaskmode->GetUserParameter(user); + + if (ret.empty()) + ret = "+"; + return ret; + } + + static std::string GetAllowedOperOnlyModes(LocalUser* user, ModeType modetype) + { + std::string ret; + const ModeParser::ModeHandlerMap& modes = ServerInstance->Modes.GetModes(modetype); + for (ModeParser::ModeHandlerMap::const_iterator i = modes.begin(); i != modes.end(); ++i) + { + const ModeHandler* const mh = i->second; + if ((mh->NeedsOper()) && (user->HasModePermission(mh))) + ret.push_back(mh->GetModeChar()); + } + return ret; + } + + public: + CommandCheck(Module* parent) + : Command(parent,"CHECK", 1) + , snomaskmode(parent, "snomask") + { + flags_needed = 'o'; + syntax = "||| []"; + } + + CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE + { + if (parameters.size() > 1 && !irc::equals(parameters[1], ServerInstance->Config->ServerName)) + return CMD_SUCCESS; + + User *targuser; + Channel *targchan; + std::string chliststr; + + targuser = ServerInstance->FindNick(parameters[0]); + targchan = ServerInstance->FindChan(parameters[0]); + + /* + * Syntax of a /check reply: + * :server.name 802 target START + * :server.name 802 target : + * :server.name 802 target END + */ + + // Constructor sends START, destructor sends END + CheckContext context(user, parameters[0]); + + if (targuser) + { + LocalUser* loctarg = IS_LOCAL(targuser); + /* /check on a user */ + context.Write("nuh", targuser->GetFullHost()); + context.Write("realnuh", targuser->GetFullRealHost()); + context.Write("realname", targuser->GetRealName()); + context.Write("modes", targuser->GetModeLetters()); + context.Write("snomasks", GetSnomasks(targuser)); + context.Write("server", targuser->server->GetName()); + context.Write("uid", targuser->uuid); + context.Write("signon", targuser->signon); + context.Write("nickts", targuser->age); + if (loctarg) + context.Write("lastmsg", loctarg->idle_lastmsg); + + if (targuser->IsAway()) + { + /* user is away */ + context.Write("awaytime", targuser->awaytime); + context.Write("awaymsg", targuser->awaymsg); + } + + if (targuser->IsOper()) + { + OperInfo* oper = targuser->oper; + /* user is an oper of type ____ */ + context.Write("opertype", oper->name); + if (loctarg) + { + context.Write("chanmodeperms", GetAllowedOperOnlyModes(loctarg, MODETYPE_CHANNEL)); + context.Write("usermodeperms", GetAllowedOperOnlyModes(loctarg, MODETYPE_USER)); + context.Write("commandperms", oper->AllowedOperCommands.ToString()); + context.Write("permissions", oper->AllowedPrivs.ToString()); + } + } + + if (loctarg) + { + context.Write("clientaddr", loctarg->client_sa.str()); + context.Write("serveraddr", loctarg->server_sa.str()); + + std::string classname = loctarg->GetClass()->name; + if (!classname.empty()) + context.Write("connectclass", classname); + + context.Write("exempt", loctarg->exempt ? "yes" : "no"); + } + else + context.Write("onip", targuser->GetIPString()); + + CheckContext::List chanlist(context, "onchans"); + for (User::ChanList::iterator i = targuser->chans.begin(); i != targuser->chans.end(); i++) + { + Membership* memb = *i; + Channel* c = memb->chan; + char prefix = memb->GetPrefixChar(); + if (prefix) + chliststr.push_back(prefix); + chliststr.append(c->name); + chanlist.Add(chliststr); + chliststr.clear(); + } + + chanlist.Flush(); + + context.DumpExt(targuser); + } + else if (targchan) + { + /* /check on a channel */ + context.Write("createdat", targchan->age); + + if (!targchan->topic.empty()) + { + /* there is a topic, assume topic related information exists */ + context.Write("topic", targchan->topic); + context.Write("topic_setby", targchan->setby); + context.Write("topic_setat", targchan->topicset); + } + + context.Write("modes", targchan->ChanModes(true)); + context.Write("membercount", ConvToStr(targchan->GetUserCounter())); + + /* now the ugly bit, spool current members of a channel. :| */ + + const Channel::MemberMap& ulist = targchan->GetUsers(); + + /* note that unlike /names, we do NOT check +i vs in the channel */ + for (Channel::MemberMap::const_iterator i = ulist.begin(); i != ulist.end(); ++i) + { + /* + * Unlike Asuka, I define a clone as coming from the same host. --w00t + */ + const UserManager::CloneCounts& clonecount = ServerInstance->Users->GetCloneCounts(i->first); + context.Write("member", InspIRCd::Format("%u %s%s (%s)", clonecount.global, + i->second->GetAllPrefixChars().c_str(), i->first->GetFullHost().c_str(), + i->first->GetRealName().c_str())); + } + + const ModeParser::ListModeList& listmodes = ServerInstance->Modes->GetListModes(); + for (ModeParser::ListModeList::const_iterator i = listmodes.begin(); i != listmodes.end(); ++i) + context.DumpListMode(*i, targchan); + + context.DumpExt(targchan); + } + else + { + /* /check on an IP address, or something that doesn't exist */ + long x = 0; + + /* hostname or other */ + const user_hash& users = ServerInstance->Users->GetUsers(); + for (user_hash::const_iterator a = users.begin(); a != users.end(); ++a) + { + if (InspIRCd::Match(a->second->GetRealHost(), parameters[0], ascii_case_insensitive_map) || InspIRCd::Match(a->second->GetDisplayedHost(), parameters[0], ascii_case_insensitive_map)) + { + /* host or vhost matches mask */ + context.Write("match", ConvToStr(++x) + " " + a->second->GetFullRealHost() + " " + a->second->GetIPString() + " " + a->second->GetRealName()); + } + /* IP address */ + else if (InspIRCd::MatchCIDR(a->second->GetIPString(), parameters[0])) + { + /* same IP. */ + context.Write("match", ConvToStr(++x) + " " + a->second->GetFullRealHost() + " " + a->second->GetIPString() + " " + a->second->GetRealName()); + } + } + + context.Write("matches", ConvToStr(x)); + } + + // END is sent by the CheckContext destructor + return CMD_SUCCESS; + } + + RouteDescriptor GetRouting(User* user, const Params& parameters) CXX11_OVERRIDE + { + if ((parameters.size() > 1) && (parameters[1].find('.') != std::string::npos)) + return ROUTE_OPT_UCAST(parameters[1]); + return ROUTE_LOCALONLY; + } +}; + +class ModuleCheck : public Module +{ + CommandCheck mycommand; + public: + ModuleCheck() : mycommand(this) + { + } + + Version GetVersion() CXX11_OVERRIDE + { + return Version("Adds the /CHECK command which allows server operators to look up details about a channel, user, IP address, or hostname.", VF_VENDOR|VF_OPTCOMMON); + } +}; + +MODULE_INIT(ModuleCheck)