-/* +------------------------------------+
\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 "wildcard.h"
\r\r/* $ModDesc: Provides aliases of commands. */
\r\r/** An alias definition
\r */
\rclass Alias : public classbase
\r{
\r public:
\r /** The text of the alias command */
\r irc::string text;
\r /** Text to replace with */
\r std::string replace_with;
\r /** Nickname required to perform alias */
\r std::string requires;
\r /** Alias requires ulined server */
\r bool uline;
\r /** Requires oper? */
\r bool operonly;
\r /* is case sensitive params */
\r bool case_sensitive;
\r /** Format that must be matched for use */
\r std::string format;
\r};
\r\rclass ModuleAlias : public Module
\r{
\r private:
\r /** We cant use a map, there may be multiple aliases with the same name */
\r std::vector<Alias> Aliases;
\r std::map<std::string, int> AliasMap;
\r std::vector<std::string> pars;
\r\r virtual void ReadAliases()
\r {
\r ConfigReader MyConf(ServerInstance);
\r\r Aliases.clear();
\r AliasMap.clear();
\r for (int i = 0; i < MyConf.Enumerate("alias"); i++)
\r {
\r Alias a;
\r std::string txt;
\r txt = MyConf.ReadValue("alias", "text", i);
\r a.text = txt.c_str();
\r a.replace_with = MyConf.ReadValue("alias", "replace", i, true);
\r a.requires = MyConf.ReadValue("alias", "requires", i);
\r a.uline = MyConf.ReadFlag("alias", "uline", i);
\r a.operonly = MyConf.ReadFlag("alias", "operonly", i);
\r a.format = MyConf.ReadValue("alias", "format", i);
\r a.case_sensitive = MyConf.ReadFlag("alias", "matchcase", i);
\r Aliases.push_back(a);
\r AliasMap[txt] = 1;
\r }
\r }
\r\r public:
\r \r ModuleAlias(InspIRCd* Me)
\r : Module(Me)
\r {
\r ReadAliases();
\r pars.resize(127);
\r }
\r\r void Implements(char* List)
\r {
\r List[I_OnPreCommand] = List[I_OnRehash] = 1;
\r }
\r\r virtual ~ModuleAlias()
\r {
\r }
\r\r virtual Version GetVersion()
\r {
\r return Version(1,1,0,1,VF_VENDOR,API_VERSION);
\r }
\r\r std::string GetVar(std::string varname, const std::string &original_line)
\r {
\r irc::spacesepstream ss(original_line);
\r varname.erase(varname.begin());
\r int index = *(varname.begin()) - 48;
\r varname.erase(varname.begin());
\r bool everything_after = (varname == "-");
\r std::string word;
\r\r for (int j = 0; j < index; j++)
\r word = ss.GetToken();
\r\r if (everything_after)
\r {
\r std::string more = "*";
\r while ((more = ss.GetToken()) != "")
\r {
\r word.append(" ");
\r word.append(more);
\r }
\r }
\r\r return word;
\r }
\r\r void SearchAndReplace(std::string& newline, const std::string &find, const std::string &replace)
\r {
\r std::string::size_type x = newline.find(find);
\r while (x != std::string::npos)
\r {
\r newline.erase(x, find.length());
\r newline.insert(x, replace);
\r x = newline.find(find);
\r }
\r }
\r\r virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
\r {
\r userrec *u = NULL;
\r\r /* If theyre not registered yet, we dont want
\r * to know.
\r */
\r if (user->registered != REG_ALL)
\r return 0;
\r\r /* We dont have any commands looking like this, dont bother with the loop */
\r if (AliasMap.find(command) == AliasMap.end())
\r return 0;
\r\r irc::string c = command.c_str();
\r /* The parameters for the command in their original form, with the command stripped off */
\r std::string compare = original_line.substr(command.length());
\r while (*(compare.c_str()) == ' ')
\r compare.erase(compare.begin());
\r\r std::string safe(original_line);
\r\r /* Escape out any $ symbols in the user provided text */
\r\r SearchAndReplace(safe, "$", "\r");
\r\r for (unsigned int i = 0; i < Aliases.size(); i++)
\r {
\r if (Aliases[i].text == c)
\r {
\r /* Does it match the pattern? */
\r if (!Aliases[i].format.empty())
\r {
\r if (!match(Aliases[i].case_sensitive, compare.c_str(), Aliases[i].format.c_str()))
\r continue;
\r }
\r\r if ((Aliases[i].operonly) && (!IS_OPER(user)))
\r return 0;
\r\r if (!Aliases[i].requires.empty())
\r {
\r u = ServerInstance->FindNick(Aliases[i].requires);
\r if (!u)
\r {
\r user->WriteServ("401 "+std::string(user->nick)+" "+Aliases[i].requires+" :is currently unavailable. Please try again later.");
\r return 1;
\r }
\r }
\r if ((u != NULL) && (!Aliases[i].requires.empty()) && (Aliases[i].uline))
\r {
\r if (!ServerInstance->ULine(u->server))
\r {
\r ServerInstance->WriteOpers("*** 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!");
\r user->WriteServ("401 "+std::string(user->nick)+" "+Aliases[i].requires+" :is an imposter! Please inform an IRC operator as soon as possible.");
\r return 1;
\r }
\r }
\r\r /* Now, search and replace in a copy of the original_line, replacing $1 through $9 and $1- etc */
\r\r std::string::size_type crlf = Aliases[i].replace_with.find('\n');
\r\r if (crlf == std::string::npos)
\r {
\r DoCommand(Aliases[i].replace_with, user, safe);
\r return 1;
\r }
\r else
\r {
\r irc::sepstream commands(Aliases[i].replace_with, '\n');
\r std::string command = "*";
\r while ((command = commands.GetToken()) != "")
\r {
\r DoCommand(command, user, safe);
\r }
\r return 1;
\r }
\r }
\r }
\r return 0;
\r }
\r\r void DoCommand(std::string newline, userrec* user, const std::string &original_line)
\r {
\r for (int v = 1; v < 10; v++)
\r {
\r std::string var = "$";
\r var.append(ConvToStr(v));
\r var.append("-");
\r std::string::size_type x = newline.find(var);
\r\r while (x != std::string::npos)
\r {
\r newline.erase(x, var.length());
\r newline.insert(x, GetVar(var, original_line));
\r x = newline.find(var);
\r }
\r\r var = "$";
\r var.append(ConvToStr(v));
\r x = newline.find(var);
\r\r while (x != std::string::npos)
\r {
\r newline.erase(x, var.length());
\r newline.insert(x, GetVar(var, original_line));
\r x = newline.find(var);
\r }
\r }
\r\r /* Special variables */
\r SearchAndReplace(newline, "$nick", user->nick);
\r SearchAndReplace(newline, "$ident", user->ident);
\r SearchAndReplace(newline, "$host", user->host);
\r SearchAndReplace(newline, "$vhost", user->dhost);
\r\r /* Unescape any variable names in the user text before sending */
\r SearchAndReplace(newline, "\r", "$");
\r\r irc::tokenstream ss(newline);
\r const char* parv[127];
\r int x = 0;
\r\r while (ss.GetToken(pars[x]))
\r {
\r parv[x] = pars[x].c_str();
\r x++;
\r }
\r\r ServerInstance->Parser->CallHandler(parv[0], &parv[1], x-1, user);
\r }
\r \r virtual void OnRehash(userrec* user, const std::string ¶meter)
\r {
\r ReadAliases();
\r }
\r};
\r\rMODULE_INIT(ModuleAlias)
\r\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2018-2019 linuxdaemon <linuxdaemon.irc@gmail.com>
+ * Copyright (C) 2013-2016, 2018 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2013, 2015-2019 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2009 Matt Smith <dz@inspircd.org>
+ * Copyright (C) 2008-2009 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007-2008 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006-2009 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"
+
+/** An alias definition
+ */
+class Alias
+{
+ public:
+ /** The text of the alias command */
+ std::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;
+
+ /* 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;
+
+ /** Strip color codes before match? */
+ bool StripColor;
+};
+
+class ModuleAlias : public Module
+{
+ std::string 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
+ */
+ typedef insp::flat_multimap<std::string, Alias, irc::insensitive_swo> AliasMap;
+
+ AliasMap Aliases;
+
+ /* whether or not +B users are allowed to use fantasy commands */
+ bool AllowBots;
+ UserModeReference botmode;
+
+ // Whether we are actively executing an alias.
+ bool active;
+
+ public:
+ void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
+ {
+ AliasMap newAliases;
+ 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");
+ if (a.AliasedCommand.empty())
+ throw ModuleException("<alias:text> is empty! at " + tag->getTagLocation());
+
+ tag->readString("replace", a.ReplaceFormat, true);
+ if (a.ReplaceFormat.empty())
+ throw ModuleException("<alias:replace> is empty! at " + tag->getTagLocation());
+
+ a.RequiredNick = tag->getString("requires");
+ a.ULineOnly = tag->getBool("uline");
+ a.ChannelCommand = tag->getBool("channelcommand", false);
+ a.UserCommand = tag->getBool("usercommand", true);
+ a.OperOnly = tag->getBool("operonly");
+ a.format = tag->getString("format");
+ a.StripColor = tag->getBool("stripcolor");
+
+ std::transform(a.AliasedCommand.begin(), a.AliasedCommand.end(), a.AliasedCommand.begin(), ::toupper);
+ newAliases.insert(std::make_pair(a.AliasedCommand, a));
+ }
+
+ ConfigTag* fantasy = ServerInstance->Config->ConfValue("fantasy");
+ AllowBots = fantasy->getBool("allowbots", false);
+ fprefix = fantasy->getString("prefix", "!", 1, ServerInstance->Config->Limits.MaxLine);
+ Aliases.swap(newAliases);
+ }
+
+ ModuleAlias()
+ : botmode(this, "bot")
+ , active(false)
+ {
+ }
+
+ Version GetVersion() CXX11_OVERRIDE
+ {
+ return Version("Allows the server administrator to define custom channel commands (e.g. !kick) and server commands (e.g. /OPERSERV).", 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))
+ {
+ word.append(" ");
+ word.append(more);
+ }
+ }
+
+ return word;
+ }
+
+ std::string CreateRFCMessage(const std::string& command, CommandBase::Params& parameters)
+ {
+ std::string message(command);
+ for (CommandBase::Params::const_iterator iter = parameters.begin(); iter != parameters.end();)
+ {
+ const std::string& parameter = *iter++;
+ message.push_back(' ');
+ if (iter == parameters.end() && (parameter.empty() || parameter.find(' ') != std::string::npos))
+ message.push_back(':');
+ message.append(parameter);
+ }
+ return message;
+ }
+
+ ModResult OnPreCommand(std::string& command, CommandBase::Params& parameters, LocalUser* user, bool validated) CXX11_OVERRIDE
+ {
+ /* If they're 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. */
+ std::pair<AliasMap::iterator, AliasMap::iterator> iters = Aliases.equal_range(command);
+ if (iters.first == iters.second)
+ return MOD_RES_PASSTHRU;
+
+ /* The parameters for the command in their original form, with the command stripped off */
+ std::string original_line = CreateRFCMessage(command, parameters);
+ std::string compare(original_line, command.length());
+ while (*(compare.c_str()) == ' ')
+ compare.erase(compare.begin());
+
+ for (AliasMap::iterator i = iters.first; i != iters.second; ++i)
+ {
+ if (i->second.UserCommand)
+ {
+ if (DoAlias(user, NULL, &(i->second), compare, original_line))
+ {
+ return MOD_RES_DENY;
+ }
+ }
+ }
+
+ // If we made it here, no aliases actually matched.
+ return MOD_RES_PASSTHRU;
+ }
+
+ ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details) CXX11_OVERRIDE
+ {
+ // Don't echo anything which is caused by an alias.
+ if (active)
+ details.echo = false;
+
+ return MOD_RES_PASSTHRU;
+ }
+
+ void OnUserPostMessage(User* user, const MessageTarget& target, const MessageDetails& details) CXX11_OVERRIDE
+ {
+ if ((target.type != MessageTarget::TYPE_CHANNEL) || (details.type != MSG_PRIVMSG))
+ {
+ return;
+ }
+
+ // fcommands are only for local users. Spanningtree will send them back out as their original cmd.
+ if (!IS_LOCAL(user))
+ {
+ return;
+ }
+
+ /* Stop here if the user is +B and allowbot is set to no. */
+ if (!AllowBots && user->IsModeSet(botmode))
+ {
+ return;
+ }
+
+ Channel *c = target.Get<Channel>();
+ std::string scommand;
+
+ // text is like "!moo cows bite me", we want "!moo" first
+ irc::spacesepstream ss(details.text);
+ ss.GetToken(scommand);
+
+ if (scommand.size() <= fprefix.size())
+ {
+ return; // wtfbbq
+ }
+
+ // we don't want to touch non-fantasy stuff
+ if (scommand.compare(0, fprefix.size(), fprefix) != 0)
+ {
+ return;
+ }
+
+ // nor do we give a shit about the prefix
+ scommand.erase(0, fprefix.size());
+
+ std::pair<AliasMap::iterator, AliasMap::iterator> iters = Aliases.equal_range(scommand);
+ if (iters.first == iters.second)
+ return;
+
+ /* The parameters for the command in their original form, with the command stripped off */
+ std::string compare(details.text, scommand.length() + fprefix.size());
+ while (*(compare.c_str()) == ' ')
+ compare.erase(compare.begin());
+
+ for (AliasMap::iterator i = iters.first; i != iters.second; ++i)
+ {
+ if (i->second.ChannelCommand)
+ {
+ // We use substr here to remove the fantasy prefix
+ if (DoAlias(user, c, &(i->second), compare, details.text.substr(fprefix.size())))
+ return;
+ }
+ }
+ }
+
+
+ int DoAlias(User *user, Channel *c, Alias *a, const std::string& compare, const std::string& safe)
+ {
+ std::string stripped(compare);
+ if (a->StripColor)
+ InspIRCd::StripColor(stripped);
+
+ /* Does it match the pattern? */
+ if (!a->format.empty())
+ {
+ if (!InspIRCd::Match(stripped, a->format))
+ return 0;
+ }
+
+ if ((a->OperOnly) && (!user->IsOper()))
+ return 0;
+
+ if (!a->RequiredNick.empty())
+ {
+ User* u = ServerInstance->FindNickOnly(a->RequiredNick);
+ if (!u)
+ {
+ user->WriteNumeric(ERR_NOSUCHNICK, a->RequiredNick, "is currently unavailable. Please try again later.");
+ return 1;
+ }
+
+ if ((a->ULineOnly) && (!u->server->IsULine()))
+ {
+ ServerInstance->SNO->WriteToSnoMask('a', "NOTICE -- Service "+a->RequiredNick+" required by alias "+a->AliasedCommand+" is not on a U-lined server, possibly underhanded antics detected!");
+ user->WriteNumeric(ERR_NOSUCHNICK, a->RequiredNick, "is not a network service! Please inform a server operator as soon as possible.");
+ return 1;
+ }
+ }
+
+ /* Now, search and replace in a copy of the original_line, replacing $1 through $9 and $1- etc */
+
+ std::string::size_type crlf = a->ReplaceFormat.find('\n');
+
+ if (crlf == std::string::npos)
+ {
+ DoCommand(a->ReplaceFormat, user, c, safe, a);
+ return 1;
+ }
+ else
+ {
+ irc::sepstream commands(a->ReplaceFormat, '\n');
+ std::string scommand;
+ while (commands.GetToken(scommand))
+ {
+ DoCommand(scommand, user, c, safe, a);
+ }
+ return 1;
+ }
+ }
+
+ void DoCommand(const std::string& newline, User* user, Channel *chan, const std::string &original_line, Alias* a)
+ {
+ std::string result;
+ result.reserve(newline.length());
+ for (unsigned int i = 0; i < newline.length(); i++)
+ {
+ char c = newline[i];
+ if ((c == '$') && (i + 1 < newline.length()))
+ {
+ if (isdigit(newline[i+1]))
+ {
+ size_t len = ((i + 2 < newline.length()) && (newline[i+2] == '-')) ? 3 : 2;
+ std::string var = newline.substr(i, len);
+ result.append(GetVar(var, original_line));
+ i += len - 1;
+ }
+ else if (!newline.compare(i, 5, "$nick", 5))
+ {
+ result.append(user->nick);
+ i += 4;
+ }
+ else if (!newline.compare(i, 5, "$host", 5))
+ {
+ result.append(user->GetRealHost());
+ i += 4;
+ }
+ else if (!newline.compare(i, 5, "$chan", 5))
+ {
+ if (chan)
+ result.append(chan->name);
+ i += 4;
+ }
+ else if (!newline.compare(i, 6, "$ident", 6))
+ {
+ result.append(user->ident);
+ i += 5;
+ }
+ else if (!newline.compare(i, 6, "$vhost", 6))
+ {
+ result.append(user->GetDisplayedHost());
+ i += 5;
+ }
+ else if (!newline.compare(i, 12, "$requirement", 12))
+ {
+ result.append(a->RequiredNick);
+ i += 11;
+ }
+ else
+ result.push_back(c);
+ }
+ else
+ result.push_back(c);
+ }
+
+ irc::tokenstream ss(result);
+ CommandBase::Params pars;
+ std::string command, token;
+
+ ss.GetMiddle(command);
+ while (ss.GetTrailing(token))
+ {
+ pars.push_back(token);
+ }
+
+ active = true;
+ ServerInstance->Parser.CallHandler(command, pars, user);
+ active = false;
+ }
+
+ void Prioritize() CXX11_OVERRIDE
+ {
+ // 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_OnUserPostMessage, PRIORITY_AFTER, linkmod);
+ }
+};
+
+MODULE_INIT(ModuleAlias)
projects / user / henk / code / inspircd.git / blobdiff