X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_alias.cpp;h=c7f0da690ed8b9eb80cae4378f3b0afc51c91163;hb=9ee588b23fd915255d2cea0c537e6938297dbe5b;hp=a0d361e78b7f668728f29023ea8934c346d5cf17;hpb=48411d8c6b214282174519d5e31e8a4144c135cc;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_alias.cpp b/src/modules/m_alias.cpp index a0d361e78..c7f0da690 100644 --- a/src/modules/m_alias.cpp +++ b/src/modules/m_alias.cpp @@ -1,181 +1,383 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* +------------------------------------+ + * | Inspire Internet Relay Chat Daemon | + * +------------------------------------+ + * + * InspIRCd: (C) 2002-2010 InspIRCd Development Team + * See: http://wiki.inspircd.org/Credits * - * Inspire is copyright (C) 2002-2004 ChatSpike-Dev. - * E-mail: - * - * - * - * Written by Craig Edwards, Craig McLure, and others. * This program is free but copyrighted software; see - *the file COPYING for details. + * the file COPYING for details. * * --------------------------------------------------- */ -using namespace std; - -#include "users.h" -#include "channels.h" -#include "modules.h" -#include "helperfuncs.h" -#include +#include "inspircd.h" /* $ModDesc: Provides aliases of commands. */ +/** An alias definition + */ class Alias { - public: - irc::string text; - std::string replace_with; - std::string requires; - bool uline; + public: + /** The text of the alias command */ + irc::string AliasedCommand; + + /** Text to replace with */ + std::string ReplaceFormat; + + /** Nickname required to perform alias */ + std::string RequiredNick; + + /** Alias requires ulined server */ + bool ULineOnly; + + /** Requires oper? */ + bool OperOnly; + + /* is case sensitive params */ + bool CaseSensitive; + + /* whether or not it may be executed via fantasy (default OFF) */ + bool ChannelCommand; + + /* whether or not it may be executed via /command (default ON) */ + bool UserCommand; + + /** Format that must be matched for use */ + std::string format; }; class ModuleAlias : public Module { - private: - Server *Srv; - ConfigReader *MyConf; - std::vector Aliases; - - /* XXX - small issue, why is this marked public when it's not (really) intended for external use - * Fixed 30/11/05 by Brain as suggestion by w00t */ - virtual void ReadAliases() - { - Aliases.clear(); - - for (int i = 0; i < MyConf->Enumerate("alias"); i++) + private: + + char fprefix; + + /* We cant use a map, there may be multiple aliases with the same name. + * We can, however, use a fancy invention: the multimap. Maps a key to one or more values. + * -- w00t + */ + std::multimap Aliases; + + /* whether or not +B users are allowed to use fantasy commands */ + bool AllowBots; + + virtual void ReadAliases() + { + ConfigReader MyConf; + + AllowBots = MyConf.ReadFlag("fantasy", "allowbots", "no", 0); + + std::string fpre = MyConf.ReadValue("fantasy","prefix",0); + fprefix = fpre.empty() ? '!' : fpre[0]; + + Aliases.clear(); + ConfigTagList tags = ServerInstance->Config->ConfTags("alias"); + for(ConfigIter i = tags.first; i != tags.second; ++i) + { + ConfigTag* tag = i->second; + Alias a; + a.AliasedCommand = tag->getString("text").c_str(); + tag->readString("replace", a.ReplaceFormat, true); + a.RequiredNick = tag->getString("requires"); + a.ULineOnly = tag->getBool("uline"); + a.ChannelCommand = tag->getBool("channelcommand", "no"); + a.UserCommand = tag->getBool("usercommand", "yes"); + a.OperOnly = tag->getBool("operonly"); + a.format = tag->getString("format"); + a.CaseSensitive = tag->getBool("matchcase"); + Aliases.insert(std::make_pair(a.AliasedCommand, a)); + } + } + + public: + + ModuleAlias() + { + ReadAliases(); + ServerInstance->Modules->Attach(I_OnPreCommand, this); + ServerInstance->Modules->Attach(I_OnRehash, this); + ServerInstance->Modules->Attach(I_OnUserMessage, this); + } + + virtual ~ModuleAlias() + { + } + + virtual Version GetVersion() + { + return Version("Provides aliases of commands.", VF_VENDOR); + } + + std::string GetVar(std::string varname, const std::string &original_line) + { + irc::spacesepstream ss(original_line); + varname.erase(varname.begin()); + int index = *(varname.begin()) - 48; + varname.erase(varname.begin()); + bool everything_after = (varname == "-"); + std::string word; + + for (int j = 0; j < index; j++) + ss.GetToken(word); + + if (everything_after) + { + std::string more; + while (ss.GetToken(more)) { - Alias a; - std::string txt; - txt = MyConf->ReadValue("alias", "text", i); - a.text = txt.c_str(); - a.replace_with = MyConf->ReadValue("alias", "replace", i); - a.requires = MyConf->ReadValue("alias", "requires", i); - - a.uline = ((MyConf->ReadValue("alias", "uline", i) == "yes") || - (MyConf->ReadValue("alias", "uline", i) == "1") || - (MyConf->ReadValue("alias", "uline", i) == "true")); - - Aliases.push_back(a); + word.append(" "); + word.append(more); } - } - public: - - ModuleAlias(Server* Me) - : Module::Module(Me) + return word; + } + + virtual ModResult OnPreCommand(std::string &command, std::vector ¶meters, LocalUser *user, bool validated, const std::string &original_line) + { + std::multimap::iterator i, upperbound; + + /* If theyre not registered yet, we dont want + * to know. + */ + if (user->registered != REG_ALL) + return MOD_RES_PASSTHRU; + + /* We dont have any commands looking like this? Stop processing. */ + i = Aliases.find(command.c_str()); + if (i == Aliases.end()) + return MOD_RES_PASSTHRU; + /* Avoid iterating on to different aliases if no patterns match. */ + upperbound = Aliases.upper_bound(command.c_str()); + + irc::string c = command.c_str(); + /* The parameters for the command in their original form, with the command stripped off */ + std::string compare = original_line.substr(command.length()); + while (*(compare.c_str()) == ' ') + compare.erase(compare.begin()); + + while (i != upperbound) { - Srv = Me; - MyConf = new ConfigReader; - ReadAliases(); + if (i->second.UserCommand) + { + if (DoAlias(user, NULL, &(i->second), compare, original_line)) + { + return MOD_RES_DENY; + } + } + + i++; } - - virtual ~ModuleAlias() + + // If we made it here, no aliases actually matched. + return MOD_RES_PASSTHRU; + } + + virtual void OnUserMessage(User *user, void *dest, int target_type, const std::string &text, char status, const CUList &exempt_list) + { + if (target_type != TYPE_CHANNEL) { - delete MyConf; + return; } - - virtual Version GetVersion() + + // fcommands are only for local users. Spanningtree will send them back out as their original cmd. + if (!user || !IS_LOCAL(user)) { - return Version(1,0,0,1,VF_VENDOR); + return; } - virtual int OnPreCommand(std::string command, char **parameters, int pcnt, userrec *user, bool validated) + /* Stop here if the user is +B and allowbot is set to no. */ + if (!AllowBots && user->IsModeSet('B')) { - userrec *u = NULL; - irc::string c = command.c_str(); + return; + } + + Channel *c = (Channel *)dest; + std::string scommand; + + // text is like "!moo cows bite me", we want "!moo" first + irc::spacesepstream ss(text); + ss.GetToken(scommand); + irc::string fcommand = scommand.c_str(); + + if (fcommand.empty()) + { + return; // wtfbbq + } + + // we don't want to touch non-fantasy stuff + if (*fcommand.c_str() != fprefix) + { + return; + } + + // nor do we give a shit about the prefix + fcommand.erase(fcommand.begin()); + + std::multimap::iterator i = Aliases.find(fcommand); + + if (i == Aliases.end()) + return; + + /* Avoid iterating on to other aliases if no patterns match */ + std::multimap::iterator upperbound = Aliases.upper_bound(fcommand); - /* If the command is valid, we dont want to know */ - if (validated) - return 0; - - for (unsigned int i = 0; i < Aliases.size(); i++) + + /* The parameters for the command in their original form, with the command stripped off */ + std::string compare = text.substr(fcommand.length() + 1); + while (*(compare.c_str()) == ' ') + compare.erase(compare.begin()); + + while (i != upperbound) + { + if (i->second.ChannelCommand) { - log(DEBUG,"Check against alias %s: %s",Aliases[i].text.c_str(),c.c_str()); - if (Aliases[i].text == c) - { - if (Aliases[i].requires != "") - { - u = Srv->FindNick(Aliases[i].requires); - } - - if ((Aliases[i].requires != "") && (!u)) - { - Srv->SendServ(user->fd,"401 "+std::string(user->nick)+" "+Aliases[i].requires+" :is currently unavailable. Please try again later."); - return 1; - } - if (Aliases[i].uline) - { - if (!Srv->IsUlined(u->server)) - { - Srv->SendOpers("*** NOTICE -- Service "+Aliases[i].requires+" required by alias "+std::string(Aliases[i].text.c_str())+" is not on a u-lined server, possibly underhanded antics detected!"); - Srv->SendServ(user->fd,"401 "+std::string(user->nick)+" "+Aliases[i].requires+" :is an imposter! Please inform an IRC operator as soon as possible."); - return 1; - } - } - - std::stringstream stuff(Aliases[i].replace_with); - for (int j = 1; j < pcnt; j++) - { - if (j) - stuff << " "; - stuff << parameters[j]; - } - - std::vector items; - while (!stuff.eof()) - { - std::string data; - stuff >> data; - items.push_back(data); - } - - char* para[127]; - - for (unsigned int j = 1; j < items.size(); j++) - para[j-1] = (char*)items[j].c_str(); - - Srv->CallCommandHandler(items[0],para,items.size()-1,user); - return 1; - } + // We use substr(1) here to remove the fantasy prefix + if (DoAlias(user, c, &(i->second), compare, text.substr(1))) + return; + } + + i++; + } + } + + + int DoAlias(User *user, Channel *c, Alias *a, const std::string compare, const std::string safe) + { + User *u = NULL; + + /* Does it match the pattern? */ + if (!a->format.empty()) + { + if (a->CaseSensitive) + { + if (!InspIRCd::Match(compare, a->format, rfc_case_sensitive_map)) + return 0; } + else + { + if (!InspIRCd::Match(compare, a->format)) + return 0; + } + } + + if ((a->OperOnly) && (!IS_OPER(user))) return 0; - } - - virtual void OnRehash(std::string parameter) - { - delete MyConf; - MyConf = new ConfigReader; - - ReadAliases(); - } -}; + if (!a->RequiredNick.empty()) + { + u = ServerInstance->FindNick(a->RequiredNick); + if (!u) + { + user->WriteNumeric(401, ""+std::string(user->nick)+" "+a->RequiredNick+" :is currently unavailable. Please try again later."); + return 1; + } + } + if ((u != NULL) && (!a->RequiredNick.empty()) && (a->ULineOnly)) + { + if (!ServerInstance->ULine(u->server)) + { + ServerInstance->SNO->WriteToSnoMask('a', "NOTICE -- Service "+a->RequiredNick+" required by alias "+std::string(a->AliasedCommand.c_str())+" is not on a u-lined server, possibly underhanded antics detected!"); + user->WriteNumeric(401, ""+std::string(user->nick)+" "+a->RequiredNick+" :is an imposter! Please inform an IRC operator as soon as possible."); + return 1; + } + } -class ModuleAliasFactory : public ModuleFactory -{ - public: - ModuleAliasFactory() + /* Now, search and replace in a copy of the original_line, replacing $1 through $9 and $1- etc */ + + std::string::size_type crlf = a->ReplaceFormat.find('\n'); + + if (crlf == std::string::npos) { + DoCommand(a->ReplaceFormat, user, c, safe); + return 1; } - - ~ModuleAliasFactory() + else + { + irc::sepstream commands(a->ReplaceFormat, '\n'); + std::string scommand; + while (commands.GetToken(scommand)) + { + DoCommand(scommand, user, c, safe); + } + return 1; + } + } + + void DoCommand(const std::string& newline, User* user, Channel *chan, const std::string &original_line) + { + std::string result; + result.reserve(MAXBUF); + for (unsigned int i = 0; i < newline.length(); i++) { + char c = newline[i]; + if (c == '$') + { + if (isdigit(newline[i+1])) + { + int len = (newline[i+2] == '-') ? 3 : 2; + std::string var = newline.substr(i, len); + result.append(GetVar(var, original_line)); + i += len - 1; + } + else if (newline.substr(i, 5) == "$nick") + { + result.append(user->nick); + i += 4; + } + else if (newline.substr(i, 5) == "$host") + { + result.append(user->host); + i += 4; + } + else if (newline.substr(i, 5) == "$chan") + { + if (chan) + result.append(chan->name); + i += 4; + } + else if (newline.substr(i, 6) == "$ident") + { + result.append(user->ident); + i += 5; + } + else if (newline.substr(i, 6) == "$vhost") + { + result.append(user->dhost); + i += 5; + } + else + result.push_back(c); + } + else + result.push_back(c); } - - virtual Module * CreateModule(Server* Me) + + irc::tokenstream ss(result); + std::vector pars; + std::string command, token; + + ss.GetToken(command); + while (ss.GetToken(token) && (pars.size() <= MAXPARAMETERS)) { - return new ModuleAlias(Me); + pars.push_back(token); } -}; + ServerInstance->Parser->CallHandler(command, pars, user); + } + virtual void OnRehash(User* user) + { + ReadAliases(); + } -extern "C" void * init_module( void ) -{ - return new ModuleAliasFactory; -} + virtual void Prioritize() + { + // Prioritise after spanningtree so that channel aliases show the alias before the effects. + Module* linkmod = ServerInstance->Modules->Find("m_spanningtree.so"); + ServerInstance->Modules->SetPriority(this, I_OnUserMessage, PRIORITY_AFTER, &linkmod); + } +}; +MODULE_INIT(ModuleAlias)