-/* +------------------------------------+\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#include "mode.h"\r\r/* $ModDesc: Provides support for channel mode +P to block all-CAPS channel messages and notices */\r\r\r/** Handles the +P channel mode\r */\rclass BlockCaps : public ModeHandler\r{\r public:\r BlockCaps(InspIRCd* Instance) : ModeHandler(Instance, 'P', 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('P'))\r {\r channel->SetMode('P',true);\r return MODEACTION_ALLOW;\r }\r }\r else\r {\r if (channel->IsModeSet('P'))\r {\r channel->SetMode('P',false);\r return MODEACTION_ALLOW;\r }\r }\r\r return MODEACTION_DENY;\r }\r};\r\rclass ModuleBlockCAPS : public Module\r{\r BlockCaps* bc;\r int percent;\r unsigned int minlen;\r char capsmap[256];\rpublic:\r \r ModuleBlockCAPS(InspIRCd* Me) : Module(Me)\r {\r OnRehash(NULL,"");\r bc = new BlockCaps(ServerInstance);\r if (!ServerInstance->AddMode(bc, 'P'))\r throw ModuleException("Could not add new modes!");\r }\r\r void Implements(char* List)\r {\r List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnRehash] = 1;\r }\r\r virtual void OnRehash(userrec* user, const std::string ¶m)\r {\r ReadConf();\r }\r\r virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)\r {\r if (target_type == TYPE_CHANNEL)\r {\r if ((!IS_LOCAL(user)) || (text.length() < minlen))\r return 0;\r\r chanrec* c = (chanrec*)dest;\r\r if (c->IsModeSet('P'))\r {\r int caps = 0;\r for (std::string::iterator i = text.begin(); i != text.end(); i++)\r caps += capsmap[(unsigned char)*i];\r if ( ((caps*100)/(int)text.length()) >= percent )\r {\r user->WriteServ( "404 %s %s :Your line cannot be more than %d%% capital letters if it is %d or more letters long", user->nick, c->name, percent, minlen);\r return 1;\r }\r }\r }\r return 0;\r }\r\r virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)\r {\r return OnUserPreMessage(user,dest,target_type,text,status,exempt_list);\r }\r\r void ReadConf()\r {\r ConfigReader Conf(ServerInstance);\r percent = Conf.ReadInteger("blockcaps", "percent", "100", 0, true);\r minlen = Conf.ReadInteger("blockcaps", "minlen", "0", 0, true);\r std::string hmap = Conf.ReadValue("blockcaps", "capsmap", 0);\r if (hmap.empty())\r hmap = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";\r memset(&capsmap, 0, 255);\r for (std::string::iterator n = hmap.begin(); n != hmap.end(); n++)\r capsmap[(unsigned char)*n] = 1;\r if (percent < 0 || percent > 100)\r {\r ServerInstance->Log(DEFAULT, "<blockcaps:percent> out of range, setting to default of 100.");\r percent = 100;\r }\r if (minlen < 0 || minlen > MAXBUF-1)\r {\r ServerInstance->Log(DEFAULT, "<blockcaps:minlen> out of range, setting to default of 0.");\r minlen = 0;\r }\r }\r\r virtual ~ModuleBlockCAPS()\r {\r ServerInstance->Modes->DelMode(bc);\r DELETE(bc);\r }\r\r virtual Version GetVersion()\r {\r return Version(1,1,0,0,VF_COMMON|VF_VENDOR,API_VERSION);\r }\r};\r\rMODULE_INIT(ModuleBlockCAPS)\r
\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2013, 2017-2018, 2020 Sadie Powell <sadie@witchery.services>
+ * 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) 2008 Thomas Stagner <aquanight@inspircd.org>
+ * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006, 2008-2009 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/exemption.h"
+
+class ModuleBlockCAPS : public Module
+{
+ CheckExemption::EventProvider exemptionprov;
+ SimpleChannelModeHandler bc;
+ unsigned int percent;
+ unsigned int minlen;
+ std::bitset<UCHAR_MAX> lowercase;
+ std::bitset<UCHAR_MAX> uppercase;
+
+public:
+ ModuleBlockCAPS()
+ : exemptionprov(this)
+ , bc(this, "blockcaps", 'B')
+ {
+ }
+
+ void On005Numeric(std::map<std::string, std::string>& tokens) CXX11_OVERRIDE
+ {
+ tokens["EXTBAN"].push_back('B');
+ }
+
+ ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE
+ {
+ if (target.type == MessageTarget::TYPE_CHANNEL)
+ {
+ if (!IS_LOCAL(user))
+ return MOD_RES_PASSTHRU;
+
+ Channel* c = target.Get<Channel>();
+ ModResult res = CheckExemption::Call(exemptionprov, user, c, "blockcaps");
+
+ if (res == MOD_RES_ALLOW)
+ return MOD_RES_PASSTHRU;
+
+ if (!c->GetExtBanStatus(user, 'B').check(!c->IsModeSet(bc)))
+ {
+ // If the message is a CTCP then we skip it unless it is
+ // an ACTION in which case we just check against the body.
+ std::string ctcpname;
+ std::string message(details.text);
+ if (details.IsCTCP(ctcpname, message))
+ {
+ // If the CTCP is not an action then skip it.
+ if (!irc::equals(ctcpname, "ACTION"))
+ return MOD_RES_PASSTHRU;
+ }
+
+ // If the message is shorter than the minimum length
+ // then we don't need to do anything else.
+ size_t length = message.length();
+ if (length < minlen)
+ return MOD_RES_PASSTHRU;
+
+ // Count the characters to see how many upper case and
+ // ignored (non upper or lower) characters there are.
+ size_t upper = 0;
+ for (std::string::const_iterator iter = message.begin(); iter != message.end(); ++iter)
+ {
+ unsigned char chr = static_cast<unsigned char>(*iter);
+ if (uppercase.test(chr))
+ upper += 1;
+ else if (!lowercase.test(chr))
+ length -= 1;
+ }
+
+ // Calculate the percentage which is upper case. If the
+ // message was entirely symbols then it can't contain
+ // any upper case letters.
+ if (length > 0 && round((upper * 100) / length) >= percent)
+ {
+ const std::string msg = InspIRCd::Format("Your message cannot contain %d%% or more capital letters if it's longer than %d characters", percent, minlen);
+ user->WriteNumeric(Numerics::CannotSendTo(c, msg));
+ return MOD_RES_DENY;
+ }
+ }
+ }
+ return MOD_RES_PASSTHRU;
+ }
+
+ void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
+ {
+ ConfigTag* tag = ServerInstance->Config->ConfValue("blockcaps");
+ percent = tag->getUInt("percent", 100, 1, 100);
+ minlen = tag->getUInt("minlen", 1, 1, ServerInstance->Config->Limits.MaxLine);
+
+ lowercase.reset();
+ const std::string lower = tag->getString("lowercase", "abcdefghijklmnopqrstuvwxyz");
+ for (std::string::const_iterator iter = lower.begin(); iter != lower.end(); ++iter)
+ lowercase.set(static_cast<unsigned char>(*iter));
+
+ uppercase.reset();
+ const std::string upper = tag->getString("uppercase", tag->getString("capsmap", "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 1));
+ for (std::string::const_iterator iter = upper.begin(); iter != upper.end(); ++iter)
+ uppercase.set(static_cast<unsigned char>(*iter));
+ }
+
+ Version GetVersion() CXX11_OVERRIDE
+ {
+ return Version("Adds channel mode B (blockcaps) which allows channels to block messages which are excessively capitalised.", VF_VENDOR);
+ }
+};
+
+MODULE_INIT(ModuleBlockCAPS)
projects / user / henk / code / inspircd.git / blobdiff