X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_repeat.cpp;h=5a532389a8eef17b7ff35343afd05689589fc522;hb=80e81e3b81b779901fd9d67f8ae030ee30c0bcec;hp=45b06865c7e15a465d907e925e9f3e70cd4f7657;hpb=8320bcc9df1ea89a47257c9f9c70aa6d476beaa8;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_repeat.cpp b/src/modules/m_repeat.cpp index 45b06865c..5a532389a 100644 --- a/src/modules/m_repeat.cpp +++ b/src/modules/m_repeat.cpp @@ -1,6 +1,13 @@ /* * InspIRCd -- Internet Relay Chat Daemon * + * Copyright (C) 2021 iwalkalone + * Copyright (C) 2019 Robby + * Copyright (C) 2018-2019 linuxdaemon + * Copyright (C) 2018 Matt Schatz + * Copyright (C) 2017-2019 Sadie Powell + * Copyright (C) 2015 James Lu + * Copyright (C) 2013-2015 Attila Molnar * Copyright (C) 2013 Daniel Vassdal * * This file is part of InspIRCd. InspIRCd is free software: you can @@ -18,6 +25,7 @@ #include "inspircd.h" +#include "modules/exemption.h" class ChannelSettings { @@ -33,7 +41,7 @@ class ChannelSettings unsigned int Backlog; unsigned int Lines; unsigned int Diff; - unsigned int Seconds; + unsigned long Seconds; void serialize(std::string& out) const { @@ -83,6 +91,7 @@ class RepeatMode : public ParamMode > unsigned int MaxBacklog; unsigned int MaxDiff; unsigned int MaxMessageSize; + std::string KickMessage; ModuleSettings() : MaxLines(0), MaxSecs(0), MaxBacklog(0), MaxDiff() { } }; @@ -110,7 +119,7 @@ class RepeatMode : public ParamMode > { mx[1][0] = i + 1; for (unsigned int j = 0; j < l2; j++) - mx[1][j + 1] = std::min(std::min(mx[1][j] + 1, mx[0][j + 1] + 1), mx[0][j] + ((s1[i] == s2[j]) ? 0 : 1)); + mx[1][j + 1] = std::min(std::min(mx[1][j] + 1, mx[0][j + 1] + 1), mx[0][j] + ((s1[i] == s2[j]) ? 0 : 1)); mx[0].swap(mx[1]); } @@ -124,9 +133,10 @@ class RepeatMode : public ParamMode > : ParamMode >(Creator, "repeat", 'E') , MemberInfoExt("repeat_memb", ExtensionItem::EXT_MEMBERSHIP, Creator) { + syntax = "[~|*]:[:][:]"; } - void OnUnset(User* source, Channel* chan) + void OnUnset(User* source, Channel* chan) CXX11_OVERRIDE { // Unset the per-membership extension when the mode is removed const Channel::MemberMap& users = chan->GetUsers(); @@ -134,23 +144,24 @@ class RepeatMode : public ParamMode > MemberInfoExt.unset(i->second); } - ModeAction OnSet(User* source, Channel* channel, std::string& parameter) + ModeAction OnSet(User* source, Channel* channel, std::string& parameter) CXX11_OVERRIDE { ChannelSettings settings; if (!ParseSettings(source, parameter, settings)) { - source->WriteNotice("*** Invalid syntax. Syntax is {[~*]}[lines]:[time]{:[difference]}{:[backlog]}"); + source->WriteNumeric(Numerics::InvalidModeParameter(channel, this, parameter)); return MODEACTION_DENY; } if ((settings.Backlog > 0) && (settings.Lines > settings.Backlog)) { - source->WriteNotice("*** You can't set needed lines higher than backlog"); + source->WriteNumeric(Numerics::InvalidModeParameter(channel, this, parameter, + "You can't set lines higher than backlog.")); return MODEACTION_DENY; } LocalUser* localsource = IS_LOCAL(source); - if ((localsource) && (!ValidateSettings(localsource, settings))) + if ((localsource) && (!ValidateSettings(localsource, channel, parameter, settings))) return MODEACTION_DENY; ext.set(channel, settings); @@ -230,18 +241,20 @@ class RepeatMode : public ParamMode > void ReadConfig() { ConfigTag* conf = ServerInstance->Config->ConfValue("repeat"); - ms.MaxLines = conf->getInt("maxlines", 20); - ms.MaxBacklog = conf->getInt("maxbacklog", 20); - ms.MaxSecs = conf->getInt("maxsecs", 0); + ms.MaxLines = conf->getUInt("maxlines", 20); + ms.MaxBacklog = conf->getUInt("maxbacklog", 20); + ms.MaxSecs = conf->getDuration("maxtime", conf->getDuration("maxsecs", 0)); - ms.MaxDiff = conf->getInt("maxdistance", 50); + ms.MaxDiff = conf->getUInt("maxdistance", 50); if (ms.MaxDiff > 100) ms.MaxDiff = 100; - unsigned int newsize = conf->getInt("size", 512); + unsigned int newsize = conf->getUInt("size", 512); if (newsize > ServerInstance->Config->Limits.MaxLine) newsize = ServerInstance->Config->Limits.MaxLine; Resize(newsize); + + ms.KickMessage = conf->getString("kickmessage", "Repeat flood"); } std::string GetModuleSettings() const @@ -249,6 +262,11 @@ class RepeatMode : public ParamMode > return ConvToStr(ms.MaxLines) + ":" + ConvToStr(ms.MaxSecs) + ":" + ConvToStr(ms.MaxDiff) + ":" + ConvToStr(ms.MaxBacklog); } + std::string GetKickMessage() const + { + return ms.KickMessage; + } + void SerializeParam(Channel* chan, const ChannelSettings* chset, std::string& out) { chset->serialize(out); @@ -271,10 +289,10 @@ class RepeatMode : public ParamMode > else settings.Action = ChannelSettings::ACT_KICK; - if ((settings.Lines = ConvToInt(item)) == 0) + if ((settings.Lines = ConvToNum(item)) == 0) return false; - if ((!stream.GetToken(item)) || ((settings.Seconds = InspIRCd::Duration(item)) == 0)) + if ((!stream.GetToken(item)) || !InspIRCd::Duration(item, settings.Seconds) || (settings.Seconds == 0)) // Required parameter missing return false; @@ -283,13 +301,13 @@ class RepeatMode : public ParamMode > if (stream.GetToken(item)) { // There is a diff parameter, see if it's valid (> 0) - if ((settings.Diff = ConvToInt(item)) == 0) + if ((settings.Diff = ConvToNum(item)) == 0) return false; if (stream.GetToken(item)) { // There is a backlog parameter, see if it's valid - if ((settings.Backlog = ConvToInt(item)) == 0) + if ((settings.Backlog = ConvToNum(item)) == 0) return false; // If there are still tokens, then it's invalid because we allow only 4 @@ -301,36 +319,42 @@ class RepeatMode : public ParamMode > return true; } - bool ValidateSettings(LocalUser* source, const ChannelSettings& settings) + bool ValidateSettings(LocalUser* source, Channel* channel, const std::string& parameter, const ChannelSettings& settings) { - if (settings.Backlog && !ms.MaxBacklog) + if (ms.MaxLines && settings.Lines > ms.MaxLines) { - source->WriteNotice("*** The server administrator has disabled backlog matching"); + source->WriteNumeric(Numerics::InvalidModeParameter(channel, this, parameter, InspIRCd::Format( + "The line number you specified is too big. Maximum allowed is %u.", ms.MaxLines))); return false; } - if (settings.Diff) + if (ms.MaxSecs && settings.Seconds > ms.MaxSecs) { - if (settings.Diff > ms.MaxDiff) - { - if (ms.MaxDiff == 0) - source->WriteNotice("*** The server administrator has disabled matching on edit distance"); - else - source->WriteNotice("*** The distance you specified is too great. Maximum allowed is " + ConvToStr(ms.MaxDiff)); - return false; - } + source->WriteNumeric(Numerics::InvalidModeParameter(channel, this, parameter, InspIRCd::Format( + "The seconds you specified are too big. Maximum allowed is %u.", ms.MaxSecs))); + return false; + } - if (ms.MaxLines && settings.Lines > ms.MaxLines) - { - source->WriteNotice("*** The line number you specified is too great. Maximum allowed is " + ConvToStr(ms.MaxLines)); - return false; - } + if (settings.Diff && settings.Diff > ms.MaxDiff) + { + if (ms.MaxDiff == 0) + source->WriteNumeric(Numerics::InvalidModeParameter(channel, this, parameter, + "The server administrator has disabled matching on edit distance.")); + else + source->WriteNumeric(Numerics::InvalidModeParameter(channel, this, parameter, InspIRCd::Format( + "The distance you specified is too big. Maximum allowed is %u.", ms.MaxDiff))); + return false; + } - if (ms.MaxSecs && settings.Seconds > ms.MaxSecs) - { - source->WriteNotice("*** The seconds you specified is too great. Maximum allowed is " + ConvToStr(ms.MaxSecs)); - return false; - } + if (settings.Backlog && settings.Backlog > ms.MaxBacklog) + { + if (ms.MaxBacklog == 0) + source->WriteNumeric(Numerics::InvalidModeParameter(channel, this, parameter, + "The server administrator has disabled backlog matching.")); + else + source->WriteNumeric(Numerics::InvalidModeParameter(channel, this, parameter, InspIRCd::Format( + "The backlog you specified is too big. Maximum allowed is %u.", ms.MaxBacklog))); + return false; } return true; @@ -339,22 +363,27 @@ class RepeatMode : public ParamMode > class RepeatModule : public Module { + CheckExemption::EventProvider exemptionprov; RepeatMode rm; public: - RepeatModule() : rm(this) {} + RepeatModule() + : exemptionprov(this) + , rm(this) + { + } void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE { rm.ReadConfig(); } - ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list, MessageType msgtype) CXX11_OVERRIDE + ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE { - if (target_type != TYPE_CHANNEL || !IS_LOCAL(user)) + if (target.type != MessageTarget::TYPE_CHANNEL || !IS_LOCAL(user)) return MOD_RES_PASSTHRU; - Channel* chan = reinterpret_cast(dest); + Channel* chan = target.Get(); ChannelSettings* settings = rm.ext.get(chan); if (!settings) return MOD_RES_PASSTHRU; @@ -363,10 +392,11 @@ class RepeatModule : public Module if (!memb) return MOD_RES_PASSTHRU; - if (ServerInstance->OnCheckExemption(user, chan, "repeat") == MOD_RES_ALLOW) + ModResult res = CheckExemption::Call(exemptionprov, user, chan, "repeat"); + if (res == MOD_RES_ALLOW) return MOD_RES_PASSTHRU; - if (rm.MatchLine(memb, settings, text)) + if (rm.MatchLine(memb, settings, details.text)) { if (settings->Action == ChannelSettings::ACT_BLOCK) { @@ -377,11 +407,11 @@ class RepeatModule : public Module if (settings->Action == ChannelSettings::ACT_BAN) { Modes::ChangeList changelist; - changelist.push_add(ServerInstance->Modes->FindMode('b', MODETYPE_CHANNEL), "*!*@" + user->dhost); + changelist.push_add(ServerInstance->Modes->FindMode('b', MODETYPE_CHANNEL), "*!*@" + user->GetDisplayedHost()); ServerInstance->Modes->Process(ServerInstance->FakeClient, chan, NULL, changelist); } - memb->chan->KickUser(ServerInstance->FakeClient, user, "Repeat flood"); + memb->chan->KickUser(ServerInstance->FakeClient, user, rm.GetKickMessage()); return MOD_RES_DENY; } return MOD_RES_PASSTHRU; @@ -394,7 +424,7 @@ class RepeatModule : public Module Version GetVersion() CXX11_OVERRIDE { - return Version("Provides the +E channel mode - for blocking of similar messages", VF_COMMON|VF_VENDOR, rm.GetModuleSettings()); + return Version("Adds channel mode E (repeat) which helps protect against spammers which spam the same message repeatedly.", VF_COMMON|VF_VENDOR, rm.GetModuleSettings()); } };