X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_rline.cpp;h=d1ab5d9ba42cc35645ca77b54170a315f4319046;hb=a785f350fd584d87f3b84bbaff569ecb59c29f04;hp=5036423a114b86eb32abdd4ff1c8e82e135d4889;hpb=c91c94014e8891ca8edcd4c363e34effb18b5962;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_rline.cpp b/src/modules/m_rline.cpp index 5036423a1..d1ab5d9ba 100644 --- a/src/modules/m_rline.cpp +++ b/src/modules/m_rline.cpp @@ -1,31 +1,37 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2007 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * Copyright (C) 2009 Daniel De Graaf + * Copyright (C) 2008 Craig Edwards + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2008 Robin Burchell * - * This program is free but copyrighted software; see - * the file COPYING for details. + * 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 . */ -#include "inspircd.h" -#include -#include "xline.h" /* $ModDesc: RLINE: Regexp user banning. */ -/* $CompileFlags: exec("pcre-config --cflags") */ -/* $LinkerFlags: exec("pcre-config --libs") rpath("pcre-config --libs") -lpcre */ -#ifdef WINDOWS -#pragma comment(lib, "pcre.lib") -#endif +#include "inspircd.h" +#include "m_regex.h" +#include "xline.h" + +static bool ZlineOnMatch = false; +static bool added_zline = false; -class CoreExport RLine : public XLine +class RLine : public XLine { - public: + public: /** Create a R-Line. * @param s_time The set time @@ -35,80 +41,98 @@ class CoreExport RLine : public XLine * @param regex Pattern to match with * @ */ - RLine(InspIRCd* Instance, time_t s_time, long d, const char* src, const char* re, const char* regexs) : XLine(Instance, s_time, d, src, re, "K") + RLine(time_t s_time, long d, const std::string& src, const std::string& re, const std::string& regexs, dynamic_reference& rxfactory) + : XLine(s_time, d, src, re, "R") + , matchtext(regexs) { - const char *error; - int erroffset; - - matchtext = regexs; - - regex = pcre_compile(regexs, 0, &error, &erroffset, NULL); - - if (!regex) - { - ServerInstance->SNO->WriteToSnoMask('x',"Error in regular expression: %s at offset %d: %s\n", regexs, erroffset, error); - throw CoreException("Bad regex pattern."); - } + /* This can throw on failure, but if it does we DONT catch it here, we catch it and display it + * where the object is created, we might not ALWAYS want it to output stuff to snomask x all the time + */ + regex = rxfactory->Create(regexs); } /** Destructor */ ~RLine() { - pcre_free(regex); + delete regex; } - virtual bool Matches(User *u) + bool Matches(User *u) { - std::string compare = compare.assign(u->nick) + "!" + u->ident + "@" + u->host + " " + u->fullname; - - ServerInstance->Log(DEBUG, "Matching " + matchtext + " against string " + compare); + if (u->exempt) + return false; - if (pcre_exec(regex, NULL, compare.c_str(), compare.length(), 0, 0, NULL, 0) > -1) - { - // Bang. :D - return true; - } - - return false; + std::string compare = u->nick + "!" + u->ident + "@" + u->host + " " + u->fullname; + return regex->Matches(compare); } - virtual bool Matches(const std::string&); // Ignored for us + bool Matches(const std::string &compare) + { + return regex->Matches(compare); + } - virtual void Apply(User* u) + void Apply(User* u) { - DefaultApply(u, "R", true); + if (ZlineOnMatch) + { + ZLine* zl = new ZLine(ServerInstance->Time(), duration ? expiry - ServerInstance->Time() : 0, ServerInstance->Config->ServerName.c_str(), reason.c_str(), u->GetIPString()); + if (ServerInstance->XLines->AddLine(zl, NULL)) + { + std::string timestr = ServerInstance->TimeString(zl->expiry); + ServerInstance->SNO->WriteToSnoMask('x', "Z-line added due to R-line match on *@%s%s%s: %s", + zl->ipaddr.c_str(), zl->duration ? " to expire on " : "", zl->duration ? timestr.c_str() : "", zl->reason.c_str()); + added_zline = true; + } + else + delete zl; + } + DefaultApply(u, "R", false); } - virtual void DisplayExpiry() + void DisplayExpiry() { - ServerInstance->SNO->WriteToSnoMask('x',"Expiring timed R-Line %s (set by %s %d seconds ago)", this->matchtext.c_str(), this->source, this->duration); + ServerInstance->SNO->WriteToSnoMask('x',"Removing expired R-line %s (set by %s %ld seconds ago)", + this->matchtext.c_str(), this->source.c_str(), (long int)(ServerInstance->Time() - this->set_time)); } - virtual const char* Displayable() + const char* Displayable() { return matchtext.c_str(); } std::string matchtext; - pcre *regex; + Regex *regex; }; /** An XLineFactory specialized to generate RLine* pointers */ -class CoreExport RLineFactory : public XLineFactory +class RLineFactory : public XLineFactory { public: - RLineFactory(InspIRCd* Instance) : XLineFactory(Instance, "R") { } - + dynamic_reference& rxfactory; + RLineFactory(dynamic_reference& rx) : XLineFactory("R"), rxfactory(rx) + { + } + /** Generate a RLine */ - XLine* Generate(time_t set_time, long duration, const char* source, const char* reason, const char* xline_specific_mask) - { - return new RLine(ServerInstance, set_time, duration, source, reason, xline_specific_mask); - } + XLine* Generate(time_t set_time, long duration, std::string source, std::string reason, std::string xline_specific_mask) + { + if (!rxfactory) + { + ServerInstance->SNO->WriteToSnoMask('a', "Cannot create regexes until engine is set to a loaded provider!"); + throw ModuleException("Regex engine not set or loaded!"); + } + + return new RLine(set_time, duration, source, reason, xline_specific_mask, rxfactory); + } + + ~RLineFactory() + { + } }; /** Handle /RLINE @@ -116,28 +140,32 @@ class CoreExport RLineFactory : public XLineFactory */ class CommandRLine : public Command { + std::string rxengine; + RLineFactory& factory; + public: - CommandRLine (InspIRCd* Instance) : Command(Instance,"DALINFO", 1, 'o') + CommandRLine(Module* Creator, RLineFactory& rlf) : Command(Creator,"RLINE", 1, 3), factory(rlf) { - this->source = "m_rline.so"; + flags_needed = 'o'; this->syntax = " [] :"; } - CmdResult Handle (const char** parameters, int pcnt, User *user) + CmdResult Handle (const std::vector& parameters, User *user) { - if (pcnt >= 3) + + if (parameters.size() >= 3) { // Adding - XXX todo make this respect tag perhaps.. long duration = ServerInstance->Duration(parameters[1]); - RLine *r = NULL; + XLine *r = NULL; try { - r = new RLine(ServerInstance, ServerInstance->Time(), duration, user->nick, parameters[2], parameters[0]); + r = factory.Generate(ServerInstance->Time(), duration, user->nick.c_str(), parameters[2].c_str(), parameters[0].c_str()); } - catch (...) + catch (ModuleException &e) { - ; // Do nothing. If we get here, the regex was fucked up, and they already got told it fucked up. + ServerInstance->SNO->WriteToSnoMask('a',"Could not add RLINE: %s", e.GetReason()); } if (r) @@ -146,13 +174,13 @@ class CommandRLine : public Command { if (!duration) { - ServerInstance->SNO->WriteToSnoMask('x',"%s added permanent R-Line for %s.", user->nick, parameters[0]); + ServerInstance->SNO->WriteToSnoMask('x',"%s added permanent R-line for %s: %s", user->nick.c_str(), parameters[0].c_str(), parameters[2].c_str()); } else { time_t c_requires_crap = duration + ServerInstance->Time(); - ServerInstance->SNO->WriteToSnoMask('x', "%s added timed R-Line for %s, expires on %s", user->nick, parameters[0], - ServerInstance->TimeString(c_requires_crap).c_str()); + std::string timestr = ServerInstance->TimeString(c_requires_crap); + ServerInstance->SNO->WriteToSnoMask('x', "%s added timed R-line for %s to expire on %s: %s", user->nick.c_str(), parameters[0].c_str(), timestr.c_str(), parameters[2].c_str()); } ServerInstance->XLines->ApplyLines(); @@ -160,42 +188,174 @@ class CommandRLine : public Command else { delete r; - user->WriteServ("NOTICE %s :*** R-Line for %s already exists", user->nick, parameters[0]); + user->WriteServ("NOTICE %s :*** R-Line for %s already exists", user->nick.c_str(), parameters[0].c_str()); } } } else { - if (ServerInstance->XLines->DelLine(parameters[0],"G",user)) + if (ServerInstance->XLines->DelLine(parameters[0].c_str(), "R", user)) { - ServerInstance->SNO->WriteToSnoMask('x',"%s Removed G-line on %s.",user->nick,parameters[0]); + ServerInstance->SNO->WriteToSnoMask('x',"%s removed R-line on %s",user->nick.c_str(),parameters[0].c_str()); } else { - user->WriteServ("NOTICE %s :*** G-line %s not found in list, try /stats g.",user->nick,parameters[0]); + user->WriteServ("NOTICE %s :*** R-Line %s not found in list, try /stats R.",user->nick.c_str(),parameters[0].c_str()); } } return CMD_SUCCESS; } + + RouteDescriptor GetRouting(User* user, const std::vector& parameters) + { + if (IS_LOCAL(user)) + return ROUTE_LOCALONLY; // spanningtree will send ADDLINE + + return ROUTE_BROADCAST; + } }; class ModuleRLine : public Module { private: - CommandRLine *r; + dynamic_reference rxfactory; + RLineFactory f; + CommandRLine r; + bool MatchOnNickChange; + bool initing; + RegexFactory* factory; + public: - ModuleRLine(InspIRCd* Me) : Module(Me) + ModuleRLine() + : rxfactory(this, "regex"), f(rxfactory), r(this, f) + , initing(true) + { + } + + void init() { - // Create a new command - r = new CommandRLine(ServerInstance); - ServerInstance->AddCommand(r); + OnRehash(NULL); + + ServerInstance->Modules->AddService(r); + ServerInstance->XLines->RegisterFactory(&f); + + Implementation eventlist[] = { I_OnUserRegister, I_OnRehash, I_OnUserPostNick, I_OnStats, I_OnBackgroundTimer, I_OnUnloadModule }; + ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation)); } virtual ~ModuleRLine() { + ServerInstance->XLines->DelAll("R"); + ServerInstance->XLines->UnregisterFactory(&f); + } + + virtual Version GetVersion() + { + return Version("RLINE: Regexp user banning.", VF_COMMON | VF_VENDOR, rxfactory ? rxfactory->name : ""); + } + + ModResult OnUserRegister(LocalUser* user) + { + // Apply lines on user connect + XLine *rl = ServerInstance->XLines->MatchesLine("R", user); + + if (rl) + { + // Bang. :P + rl->Apply(user); + return MOD_RES_DENY; + } + return MOD_RES_PASSTHRU; + } + + virtual void OnRehash(User *user) + { + ConfigTag* tag = ServerInstance->Config->ConfValue("rline"); + + MatchOnNickChange = tag->getBool("matchonnickchange"); + ZlineOnMatch = tag->getBool("zlineonmatch"); + std::string newrxengine = tag->getString("engine"); + + factory = rxfactory ? (rxfactory.operator->()) : NULL; + + if (newrxengine.empty()) + rxfactory.SetProvider("regex"); + else + rxfactory.SetProvider("regex/" + newrxengine); + + if (!rxfactory) + { + if (newrxengine.empty()) + ServerInstance->SNO->WriteToSnoMask('a', "WARNING: No regex engine loaded - R-Line functionality disabled until this is corrected."); + else + ServerInstance->SNO->WriteToSnoMask('a', "WARNING: Regex engine '%s' is not loaded - R-Line functionality disabled until this is corrected.", newrxengine.c_str()); + + ServerInstance->XLines->DelAll(f.GetType()); + } + else if ((!initing) && (rxfactory.operator->() != factory)) + { + ServerInstance->SNO->WriteToSnoMask('a', "Regex engine has changed, removing all R-Lines"); + ServerInstance->XLines->DelAll(f.GetType()); + } + + initing = false; + } + + virtual ModResult OnStats(char symbol, User* user, string_list &results) + { + if (symbol != 'R') + return MOD_RES_PASSTHRU; + + ServerInstance->XLines->InvokeStats("R", 223, user, results); + return MOD_RES_DENY; + } + + virtual void OnUserPostNick(User *user, const std::string &oldnick) + { + if (!IS_LOCAL(user)) + return; + + if (!MatchOnNickChange) + return; + + XLine *rl = ServerInstance->XLines->MatchesLine("R", user); + + if (rl) + { + // Bang! :D + rl->Apply(user); + } + } + + virtual void OnBackgroundTimer(time_t curtime) + { + if (added_zline) + { + added_zline = false; + ServerInstance->XLines->ApplyLines(); + } + } + + void OnUnloadModule(Module* mod) + { + // If the regex engine became unavailable or has changed, remove all rlines + if (!rxfactory) + { + ServerInstance->XLines->DelAll(f.GetType()); + } + else if (rxfactory.operator->() != factory) + { + factory = rxfactory.operator->(); + ServerInstance->XLines->DelAll(f.GetType()); + } + } + + void Prioritize() + { + Module* mod = ServerInstance->Modules->Find("m_cgiirc.so"); + ServerInstance->Modules->SetPriority(this, I_OnUserRegister, PRIORITY_AFTER, mod); } }; MODULE_INIT(ModuleRLine) -