-/* +------------------------------------+\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: Provides support for unreal-style channel mode +z */\r\rstatic char* dummy;\r\r/** Handle channel mode +z\r */\rclass SSLMode : public ModeHandler\r{\r public:\r SSLMode(InspIRCd* Instance) : ModeHandler(Instance, 'z', 0, 0, false, MODETYPE_CHANNEL, false) { }\r\r ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)\r {\r if (adding)\r {\r if (!channel->IsModeSet('z'))\r {\r if (IS_LOCAL(source))\r {\r CUList* userlist = channel->GetUsers();\r for(CUList::iterator i = userlist->begin(); i != userlist->end(); i++)\r {\r if(!i->first->GetExt("ssl", dummy))\r {\r source->WriteServ("490 %s %s :all members of the channel must be connected via SSL", source->nick, channel->name);\r return MODEACTION_DENY;\r }\r }\r }\r channel->SetMode('z',true);\r return MODEACTION_ALLOW;\r }\r else\r {\r return MODEACTION_DENY;\r }\r }\r else\r {\r if (channel->IsModeSet('z'))\r {\r channel->SetMode('z',false);\r return MODEACTION_ALLOW;\r }\r\r return MODEACTION_DENY;\r }\r }\r};\r\rclass ModuleSSLModes : public Module\r{\r \r SSLMode* sslm;\r \r public:\r ModuleSSLModes(InspIRCd* Me)\r : Module(Me)\r {\r \r\r sslm = new SSLMode(ServerInstance);\r if (!ServerInstance->AddMode(sslm, 'z'))\r throw ModuleException("Could not add new modes!");\r }\r\r void Implements(char* List)\r {\r List[I_OnUserPreJoin] = 1;\r }\r\r virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname, std::string &privs)\r {\r if(chan && chan->IsModeSet('z'))\r {\r if(user->GetExt("ssl", dummy))\r {\r // Let them in\r return 0;\r }\r else\r {\r // Deny\r user->WriteServ( "489 %s %s :Cannot join channel; SSL users only (+z)", user->nick, cname);\r return 1;\r }\r }\r \r return 0;\r }\r\r virtual ~ModuleSSLModes()\r {\r ServerInstance->Modes->DelMode(sslm);\r DELETE(sslm);\r }\r \r virtual Version GetVersion()\r {\r return Version(1, 1, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);\r }\r};\r\r\rclass ModuleSSLModesFactory : public ModuleFactory\r{\r public:\r ModuleSSLModesFactory()\r {\r }\r \r ~ModuleSSLModesFactory()\r {\r }\r \r virtual Module* CreateModule(InspIRCd* Me)\r {\r return new ModuleSSLModes(Me);\r }\r \r};\r\r\rextern "C" DllExport void * init_module( void )\r{\r return new ModuleSSLModesFactory;\r}\r
\ No newline at end of file
+/*
+ * 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/>.
+ */
+
+
+#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
+{
+ private:
+ UserCertificateAPI& API;
+
+ public:
+ SSLMode(Module* Creator, UserCertificateAPI& api)
+ : ModeHandler(Creator, "sslonly", 'z', PARAM_NONE, MODETYPE_CHANNEL)
+ , API(api)
+ {
+ }
+
+ ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string& parameter, bool adding) CXX11_OVERRIDE
+ {
+ if (adding)
+ {
+ if (!channel->IsModeSet(this))
+ {
+ if (IS_LOCAL(source))
+ {
+ 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->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(this, true);
+ return MODEACTION_ALLOW;
+ }
+ else
+ {
+ return MODEACTION_DENY;
+ }
+ }
+ else
+ {
+ if (channel->IsModeSet(this))
+ {
+ channel->SetMode(this, false);
+ return MODEACTION_ALLOW;
+ }
+
+ return MODEACTION_DENY;
+ }
+ }
+};
+
+/** Handle user mode +z
+*/
+class SSLModeUser : public ModeHandler
+{
+ private:
+ UserCertificateAPI& API;
+
+ public:
+ SSLModeUser(Module* Creator, UserCertificateAPI& api)
+ : ModeHandler(Creator, "sslqueries", 'z', PARAM_NONE, MODETYPE_USER)
+ , API(api)
+ {
+ if (!ServerInstance->Config->ConfValue("sslmodes")->getBool("enableumode"))
+ DisableAutoRegister();
+ }
+
+ ModeAction OnModeChange(User* user, User* dest, Channel* channel, std::string& parameter, bool adding) CXX11_OVERRIDE
+ {
+ 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;
+ }
+};
+
+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)
+ {
+ }
+
+ ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
+ {
+ if(chan && chan->IsModeSet(sslm))
+ {
+ if (!api)
+ {
+ 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;
+ }
+
+ if (!api->GetCertificate(user))
+ {
+ user->WriteNumeric(ERR_SECUREONLYCHAN, cname, "Cannot join channel; TLS (SSL) users only (+z is set)");
+ return MOD_RES_DENY;
+ }
+ }
+
+ return MOD_RES_PASSTHRU;
+ }
+
+ ModResult HandleMessage(User* user, const MessageTarget& msgtarget)
+ {
+ 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;
+ }
+
+ ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE
+ {
+ return HandleMessage(user, target);
+ }
+
+ ModResult OnUserPreTagMessage(User* user, const MessageTarget& target, CTCTags::TagMessageDetails& details) CXX11_OVERRIDE
+ {
+ return HandleMessage(user, target);
+ }
+
+ 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;
+ }
+
+ void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
+ {
+ tokens["EXTBAN"].push_back('z');
+ }
+
+ Version GetVersion() CXX11_OVERRIDE
+ {
+ 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);
+ }
+};
+
+MODULE_INIT(ModuleSSLModes)
projects / user / henk / code / inspircd.git / blobdiff