-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include "helperfuncs.h"
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2020 Matt Schatz <genius3000@g3k.solutions>
+ * Copyright (C) 2013, 2017-2020 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2013 Shawn Smith <ShawnSmith0828@gmail.com>
+ * Copyright (C) 2012-2014 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006-2007, 2010 Craig Edwards <brain@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/>.
+ */
-/* $ModDesc: Provides support for unreal-style channel mode +z */
-static char* dummy;
+#include "inspircd.h"
+#include "modules/ctctags.h"
+#include "modules/ssl.h"
+enum
+{
+ // From UnrealIRCd.
+ ERR_SECUREONLYCHAN = 489,
+ ERR_ALLMUSTSSL = 490
+};
+
+/** Handle channel mode +z
+ */
class SSLMode : public ModeHandler
{
- Server* Srv;
+ private:
+ UserCertificateAPI& API;
+
public:
- SSLMode(Server* s) : ModeHandler('z', 0, 0, false, MODETYPE_CHANNEL, false), Srv(s) { }
+ SSLMode(Module* Creator, UserCertificateAPI& api)
+ : ModeHandler(Creator, "sslonly", 'z', PARAM_NONE, MODETYPE_CHANNEL)
+ , API(api)
+ {
+ }
- ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)
+ ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string& parameter, bool adding) CXX11_OVERRIDE
{
if (adding)
{
- if (!channel->IsModeSet('z'))
+ if (!channel->IsModeSet(this))
{
- chanuserlist userlist = Srv->GetUsers(channel);
- for(unsigned int i = 0; i < userlist.size(); i++)
+ if (IS_LOCAL(source))
{
- if(!userlist[i]->GetExt("ssl", dummy))
+ if (!API)
+ {
+ source->WriteNumeric(ERR_ALLMUSTSSL, channel->name, "Unable to determine whether all members of the channel are connected via TLS (SSL)");
+ return MODEACTION_DENY;
+ }
+
+ unsigned long nonssl = 0;
+ const Channel::MemberMap& userlist = channel->GetUsers();
+ for (Channel::MemberMap::const_iterator i = userlist.begin(); i != userlist.end(); ++i)
+ {
+ ssl_cert* cert = API->GetCertificate(i->first);
+ if (!cert && !i->first->server->IsULine())
+ nonssl++;
+ }
+
+ if (nonssl)
{
- source->WriteServ("490 %s %s :all members of the channel must be connected via SSL", source->nick, channel->name);
+ source->WriteNumeric(ERR_ALLMUSTSSL, channel->name, InspIRCd::Format("All members of the channel must be connected via TLS (SSL) (%lu/%lu are non-TLS (SSL))",
+ nonssl, static_cast<unsigned long>(userlist.size())));
return MODEACTION_DENY;
}
}
- channel->SetMode('z',true);
+ channel->SetMode(this, true);
return MODEACTION_ALLOW;
}
else
}
else
{
- if (channel->IsModeSet('z'))
+ if (channel->IsModeSet(this))
{
- channel->SetMode('z',false);
+ channel->SetMode(this, false);
return MODEACTION_ALLOW;
}
}
};
-class ModuleSSLModes : public Module
+/** Handle user mode +z
+*/
+class SSLModeUser : public ModeHandler
{
- Server *Srv;
- SSLMode* sslm;
-
+ private:
+ UserCertificateAPI& API;
+
public:
- ModuleSSLModes(Server* Me)
- : Module::Module(Me)
+ SSLModeUser(Module* Creator, UserCertificateAPI& api)
+ : ModeHandler(Creator, "sslqueries", 'z', PARAM_NONE, MODETYPE_USER)
+ , API(api)
{
- Srv = Me;
-
- sslm = new SSLMode(Me);
- Srv->AddMode(sslm, 'z');
+ if (!ServerInstance->Config->ConfValue("sslmodes")->getBool("enableumode"))
+ DisableAutoRegister();
}
- void Implements(char* List)
+ ModeAction OnModeChange(User* user, User* dest, Channel* channel, std::string& parameter, bool adding) CXX11_OVERRIDE
{
- List[I_On005Numeric] = List[I_OnUserPreJoin] = 1;
+ if (adding)
+ {
+ if (!dest->IsModeSet(this))
+ {
+ if (!API || !API->GetCertificate(user))
+ return MODEACTION_DENY;
+
+ dest->SetMode(this, true);
+ return MODEACTION_ALLOW;
+ }
+ }
+ else
+ {
+ if (dest->IsModeSet(this))
+ {
+ dest->SetMode(this, false);
+ return MODEACTION_ALLOW;
+ }
+ }
+
+ return MODEACTION_DENY;
}
+};
- virtual void On005Numeric(std::string &output)
+class ModuleSSLModes
+ : public Module
+ , public CTCTags::EventListener
+{
+ private:
+ UserCertificateAPI api;
+ SSLMode sslm;
+ SSLModeUser sslquery;
+
+ public:
+ ModuleSSLModes()
+ : CTCTags::EventListener(this)
+ , api(this)
+ , sslm(this, api)
+ , sslquery(this, api)
{
- InsertMode(output, "z", 4);
}
-
- virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
+
+ ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
{
- if(chan && chan->IsModeSet('z'))
+ if(chan && chan->IsModeSet(sslm))
{
- if(user->GetExt("ssl", dummy))
+ if (!api)
{
- // Let them in
- return 0;
+ user->WriteNumeric(ERR_SECUREONLYCHAN, cname, "Cannot join channel; unable to determine if you are a TLS (SSL) user (+z is set)");
+ return MOD_RES_DENY;
}
- else
+
+ if (!api->GetCertificate(user))
{
- // Deny
- user->WriteServ( "489 %s %s :Cannot join channel (+z)", user->nick, cname);
- return 1;
+ user->WriteNumeric(ERR_SECUREONLYCHAN, cname, "Cannot join channel; TLS (SSL) users only (+z is set)");
+ return MOD_RES_DENY;
}
}
-
- return 0;
+
+ return MOD_RES_PASSTHRU;
}
- virtual ~ModuleSSLModes()
+ ModResult HandleMessage(User* user, const MessageTarget& msgtarget)
{
- DELETE(sslm);
+ if (msgtarget.type != MessageTarget::TYPE_USER)
+ return MOD_RES_PASSTHRU;
+
+ User* target = msgtarget.Get<User>();
+
+ /* If one or more of the parties involved is a ulined service, we won't stop it. */
+ if (user->server->IsULine() || target->server->IsULine())
+ return MOD_RES_PASSTHRU;
+
+ /* If the target is +z */
+ if (target->IsModeSet(sslquery))
+ {
+ if (!api || !api->GetCertificate(user))
+ {
+ /* The sending user is not on an SSL connection */
+ user->WriteNumeric(Numerics::CannotSendTo(target, "messages", &sslquery));
+ return MOD_RES_DENY;
+ }
+ }
+ /* If the user is +z */
+ else if (user->IsModeSet(sslquery))
+ {
+ if (!api || !api->GetCertificate(target))
+ {
+ user->WriteNumeric(Numerics::CannotSendTo(target, "messages", &sslquery, true));
+ return MOD_RES_DENY;
+ }
+ }
+
+ return MOD_RES_PASSTHRU;
}
-
- virtual Version GetVersion()
+
+ ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE
{
- return Version(1, 0, 0, 0, VF_STATIC | VF_VENDOR);
+ return HandleMessage(user, target);
}
-};
+ ModResult OnUserPreTagMessage(User* user, const MessageTarget& target, CTCTags::TagMessageDetails& details) CXX11_OVERRIDE
+ {
+ return HandleMessage(user, target);
+ }
-class ModuleSSLModesFactory : public ModuleFactory
-{
- public:
- ModuleSSLModesFactory()
+ ModResult OnCheckBan(User *user, Channel *c, const std::string& mask) CXX11_OVERRIDE
{
+ if ((mask.length() > 2) && (mask[0] == 'z') && (mask[1] == ':'))
+ {
+ const std::string fp = api ? api->GetFingerprint(user) : "";
+ if (!fp.empty() && InspIRCd::Match(fp, mask.substr(2)))
+ return MOD_RES_DENY;
+ }
+ return MOD_RES_PASSTHRU;
}
-
- ~ModuleSSLModesFactory()
+
+ void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
{
+ tokens["EXTBAN"].push_back('z');
}
-
- virtual Module* CreateModule(Server* Me)
+
+ Version GetVersion() CXX11_OVERRIDE
{
- return new ModuleSSLModes(Me);
+ return Version("Adds channel mode z (sslonly) which prevents users who are not connecting using TLS (SSL) from joining the channel and user mode z (sslqueries) to prevent messages from non-TLS (SSL) users.", VF_VENDOR);
}
-
};
-
-extern "C" void * init_module( void )
-{
- return new ModuleSSLModesFactory;
-}
+MODULE_INIT(ModuleSSLModes)
projects / user / henk / code / inspircd.git / blobdiff