-/* +------------------------------------+\r * | Inspire Internet Relay Chat Daemon |\r * +------------------------------------+\r *\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team\r * See: http://www.inspircd.org/wiki/index.php/Credits\r *\r * This program is free but copyrighted software; see\r * the file COPYING for details.\r *\r * ---------------------------------------------------\r */\r\r#include "inspircd.h"\r#include "users.h"\r#include "channels.h"\r#include "modules.h"\r\r/* $ModDesc: Allows for auditorium channels (+u) where nobody can see others joining and parting or the nick list */\r\rclass AuditoriumMode : public ModeHandler\r{\r public:\r AuditoriumMode(InspIRCd* Instance) : ModeHandler(Instance, 'u', 0, 0, false, MODETYPE_CHANNEL, false) { }\r\r ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)\r {\r if (channel->IsModeSet('u') != adding)\r {\r if (IS_LOCAL(source) && (channel->GetStatus(source) < STATUS_OP))\r {\r source->WriteServ("482 %s %s :Only channel operators may %sset channel mode +u", source->nick, channel->name, adding ? "" : "un");\r return MODEACTION_DENY;\r }\r else\r {\r channel->SetMode('u', adding);\r return MODEACTION_ALLOW;\r }\r }\r else\r {\r return MODEACTION_DENY;\r }\r }\r};\r\rclass ModuleAuditorium : public Module\r{\r private:\r AuditoriumMode* aum;\r bool ShowOps;\r CUList nl;\r CUList except_list;\r public:\r ModuleAuditorium(InspIRCd* Me)\r : Module(Me)\r {\r aum = new AuditoriumMode(ServerInstance);\r if (!ServerInstance->AddMode(aum, 'u'))\r throw ModuleException("Could not add new modes!");\r OnRehash(NULL, "");\r }\r \r virtual ~ModuleAuditorium()\r {\r ServerInstance->Modes->DelMode(aum);\r DELETE(aum);\r }\r\r virtual void OnRehash(userrec* user, const std::string ¶meter)\r {\r ConfigReader conf(ServerInstance);\r ShowOps = conf.ReadFlag("auditorium", "showops", 0);\r }\r\r Priority Prioritize()\r {\r /* To ensure that we get priority over namesx for names list generation on +u channels */\r return (Priority)ServerInstance->PriorityBefore("m_namesx.so");\r }\r\r virtual Version GetVersion()\r {\r return Version(1, 1, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);\r }\r\r void Implements(char* List)\r {\r List[I_OnUserJoin] = List[I_OnUserPart] = List[I_OnUserKick] = List[I_OnUserQuit] = List[I_OnUserList] = List[I_OnRehash] = 1;\r }\r\r virtual int OnUserList(userrec* user, chanrec* Ptr, CUList* &nameslist)\r {\r if (Ptr->IsModeSet('u'))\r {\r if (ShowOps)\r {\r /* Leave the names list alone, theyre an op\r * doing /names on the channel after joining it\r */\r if (Ptr->GetStatus(user) >= STATUS_OP)\r {\r nameslist = Ptr->GetUsers();\r return 0;\r }\r\r /* Show all the opped users */\r nl = *(Ptr->GetOppedUsers());\r nl[user] = user->nick;\r nameslist = &nl;\r return 0;\r }\r else\r {\r /* HELLOOO, IS ANYBODY THERE? -- nope, just us. */\r user->WriteServ("353 %s = %s :%s", user->nick, Ptr->name, user->nick);\r user->WriteServ("366 %s %s :End of /NAMES list.", user->nick, Ptr->name);\r return 1;\r }\r }\r return 0;\r }\r \r virtual void OnUserJoin(userrec* user, chanrec* channel, bool &silent)\r {\r if (channel->IsModeSet('u'))\r {\r silent = true;\r /* Because we silenced the event, make sure it reaches the user whos joining (but only them of course) */\r user->WriteFrom(user, "JOIN %s", channel->name);\r if (ShowOps)\r channel->WriteAllExcept(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', except_list, "JOIN %s", channel->name);\r }\r }\r\r void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage, bool &silent)\r {\r if (channel->IsModeSet('u'))\r {\r silent = true;\r /* Because we silenced the event, make sure it reaches the user whos leaving (but only them of course) */\r user->WriteFrom(user, "PART %s%s%s", channel->name,\r partmessage.empty() ? "" : " :",\r partmessage.empty() ? "" : partmessage.c_str());\r if (ShowOps)\r {\r channel->WriteAllExcept(user, false, channel->GetStatus(user) >= STATUS_OP ? 0 : '@', except_list, "PART %s%s%s", channel->name, partmessage.empty() ? "" : " :",\r partmessage.empty() ? "" : partmessage.c_str());\r }\r }\r }\r\r void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason, bool &silent)\r {\r if (chan->IsModeSet('u'))\r {\r silent = true;\r /* Send silenced event only to the user being kicked and the user doing the kick */\r source->WriteFrom(source, "KICK %s %s %s", chan->name, user->nick, reason.c_str());\r if (ShowOps)\r chan->WriteAllExcept(source, false, chan->GetStatus(source) >= STATUS_OP ? 0 : '@', except_list, "KICK %s %s %s", chan->name, user->nick, reason.c_str());\r else\r user->WriteFrom(source, "KICK %s %s %s", chan->name, user->nick, reason.c_str());\r }\r }\r\r void OnUserQuit(userrec* user, const std::string &reason, const std::string &oper_message)\r {\r command_t* parthandler = ServerInstance->Parser->GetHandler("PART");\r std::vector<std::string> to_leave;\r const char* parameters[2];\r if (parthandler)\r {\r for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)\r {\r if (f->first->IsModeSet('u'))\r to_leave.push_back(f->first->name);\r }\r /* We cant do this neatly in one loop, as we are modifying the map we are iterating */\r for (std::vector<std::string>::iterator n = to_leave.begin(); n != to_leave.end(); n++)\r {\r parameters[0] = n->c_str();\r /* This triggers our OnUserPart, above, making the PART silent */\r parthandler->Handle(parameters, 1, user);\r }\r }\r }\r};\r\rMODULE_INIT(ModuleAuditorium)\r
\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2013-2014, 2016, 2018 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2013, 2017-2019 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007-2008, 2010 Craig Edwards <brain@inspircd.org>
+ * Copyright (C) 2007, 2009 Dennis Friis <peavey@inspircd.org>
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "inspircd.h"
+#include "modules/exemption.h"
+#include "modules/names.h"
+#include "modules/who.h"
+
+class AuditoriumMode : public SimpleChannelModeHandler
+{
+ public:
+ AuditoriumMode(Module* Creator) : SimpleChannelModeHandler(Creator, "auditorium", 'u')
+ {
+ ranktoset = ranktounset = OP_VALUE;
+ }
+};
+
+class ModuleAuditorium;
+
+namespace
+{
+
+/** Hook handler for join client protocol events.
+ * This allows us to block join protocol events completely, including all associated messages (e.g. MODE, away-notify AWAY).
+ * This is not the same as OnUserJoin() because that runs only when a real join happens but this runs also when a module
+ * such as delayjoin or hostcycle generates a join.
+ */
+class JoinHook : public ClientProtocol::EventHook
+{
+ ModuleAuditorium* const parentmod;
+ bool active;
+
+ public:
+ JoinHook(ModuleAuditorium* mod);
+ void OnEventInit(const ClientProtocol::Event& ev) CXX11_OVERRIDE;
+ ModResult OnPreEventSend(LocalUser* user, const ClientProtocol::Event& ev, ClientProtocol::MessageList& messagelist) CXX11_OVERRIDE;
+};
+
+}
+
+class ModuleAuditorium
+ : public Module
+ , public Names::EventListener
+ , public Who::EventListener
+{
+ CheckExemption::EventProvider exemptionprov;
+ AuditoriumMode aum;
+ bool OpsVisible;
+ bool OpsCanSee;
+ bool OperCanSee;
+ JoinHook joinhook;
+
+ public:
+ ModuleAuditorium()
+ : Names::EventListener(this)
+ , Who::EventListener(this)
+ , exemptionprov(this)
+ , aum(this)
+ , joinhook(this)
+ {
+ }
+
+ void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
+ {
+ ConfigTag* tag = ServerInstance->Config->ConfValue("auditorium");
+ OpsVisible = tag->getBool("opvisible");
+ OpsCanSee = tag->getBool("opcansee");
+ OperCanSee = tag->getBool("opercansee", true);
+ }
+
+ Version GetVersion() CXX11_OVERRIDE
+ {
+ return Version("Adds channel mode u (auditorium) which hides unprivileged users in a channel from each other.", VF_VENDOR);
+ }
+
+ /* Can they be seen by everyone? */
+ bool IsVisible(Membership* memb)
+ {
+ if (!memb->chan->IsModeSet(&aum))
+ return true;
+
+ ModResult res = CheckExemption::Call(exemptionprov, memb->user, memb->chan, "auditorium-vis");
+ return res.check(OpsVisible && memb->getRank() >= OP_VALUE);
+ }
+
+ /* Can they see this specific membership? */
+ bool CanSee(User* issuer, Membership* memb)
+ {
+ // If user is oper and operoverride is on, don't touch the list
+ if (OperCanSee && issuer->HasPrivPermission("channels/auspex"))
+ return true;
+
+ // You can always see yourself
+ if (issuer == memb->user)
+ return true;
+
+ // Can you see the list by permission?
+ ModResult res = CheckExemption::Call(exemptionprov, issuer, memb->chan, "auditorium-see");
+ if (res.check(OpsCanSee && memb->chan->GetPrefixValue(issuer) >= OP_VALUE))
+ return true;
+
+ return false;
+ }
+
+ ModResult OnNamesListItem(LocalUser* issuer, Membership* memb, std::string& prefixes, std::string& nick) CXX11_OVERRIDE
+ {
+ if (IsVisible(memb))
+ return MOD_RES_PASSTHRU;
+
+ if (CanSee(issuer, memb))
+ return MOD_RES_PASSTHRU;
+
+ // Don't display this user in the NAMES list
+ return MOD_RES_DENY;
+ }
+
+ /** Build CUList for showing this join/part/kick */
+ void BuildExcept(Membership* memb, CUList& excepts)
+ {
+ if (IsVisible(memb))
+ return;
+
+ const Channel::MemberMap& users = memb->chan->GetUsers();
+ for (Channel::MemberMap::const_iterator i = users.begin(); i != users.end(); ++i)
+ {
+ if (IS_LOCAL(i->first) && !CanSee(i->first, memb))
+ excepts.insert(i->first);
+ }
+ }
+
+ void OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts) CXX11_OVERRIDE
+ {
+ BuildExcept(memb, excepts);
+ }
+
+ void OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts) CXX11_OVERRIDE
+ {
+ BuildExcept(memb, excepts);
+ }
+
+ void OnBuildNeighborList(User* source, IncludeChanList& include, std::map<User*, bool>& exception) CXX11_OVERRIDE
+ {
+ for (IncludeChanList::iterator i = include.begin(); i != include.end(); )
+ {
+ Membership* memb = *i;
+ if (IsVisible(memb))
+ {
+ ++i;
+ continue;
+ }
+
+ // this channel should not be considered when listing my neighbors
+ i = include.erase(i);
+ // however, that might hide me from ops that can see me...
+ const Channel::MemberMap& users = memb->chan->GetUsers();
+ for(Channel::MemberMap::const_iterator j = users.begin(); j != users.end(); ++j)
+ {
+ if (IS_LOCAL(j->first) && CanSee(j->first, memb))
+ exception[j->first] = true;
+ }
+ }
+ }
+
+ ModResult OnWhoLine(const Who::Request& request, LocalUser* source, User* user, Membership* memb, Numeric::Numeric& numeric) CXX11_OVERRIDE
+ {
+ if (!memb)
+ return MOD_RES_PASSTHRU;
+ if (IsVisible(memb))
+ return MOD_RES_PASSTHRU;
+ if (CanSee(source, memb))
+ return MOD_RES_PASSTHRU;
+ return MOD_RES_DENY;
+ }
+};
+
+JoinHook::JoinHook(ModuleAuditorium* mod)
+ : ClientProtocol::EventHook(mod, "JOIN", 10)
+ , parentmod(mod)
+{
+}
+
+void JoinHook::OnEventInit(const ClientProtocol::Event& ev)
+{
+ const ClientProtocol::Events::Join& join = static_cast<const ClientProtocol::Events::Join&>(ev);
+ active = !parentmod->IsVisible(join.GetMember());
+}
+
+ModResult JoinHook::OnPreEventSend(LocalUser* user, const ClientProtocol::Event& ev, ClientProtocol::MessageList& messagelist)
+{
+ if (!active)
+ return MOD_RES_PASSTHRU;
+
+ const ClientProtocol::Events::Join& join = static_cast<const ClientProtocol::Events::Join&>(ev);
+ return ((parentmod->CanSee(user, join.GetMember())) ? MOD_RES_PASSTHRU : MOD_RES_DENY);
+}
+
+MODULE_INIT(ModuleAuditorium)
projects / user / henk / code / inspircd.git / blobdiff