/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2008-2009 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
* Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
*
* 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"
/* $ModDesc: Implementation of callerid, usermode +g, /accept */
class callerid_data
{
public:
time_t lastnotify;
/** Users I accept messages from
*/
std::set<User*> accepting;
/** Users who list me as accepted
*/
std::list<callerid_data *> wholistsme;
callerid_data() : lastnotify(0) { }
callerid_data(const std::string& str)
{
irc::commasepstream s(str);
std::string tok;
if (s.GetToken(tok))
{
lastnotify = ConvToInt(tok);
}
while (s.GetToken(tok))
{
if (tok.empty())
{
continue;
}
User *u = ServerInstance->FindNick(tok);
if ((u) && (u->registered == REG_ALL) && (!u->quitting) && (!IS_SERVER(u)))
accepting.insert(u);
}
}
std::string ToString(SerializeFormat format) const
{
std::ostringstream oss;
oss << lastnotify;
for (std::set<User*>::const_iterator i = accepting.begin(); i != accepting.end(); ++i)
{
User* u = *i;
// Encode UIDs.
oss << "," << (format == FORMAT_USER ? u->nick : u->uuid);
}
return oss.str();
}
};
struct CallerIDExtInfo : public ExtensionItem
{
CallerIDExtInfo(Module* parent)
: ExtensionItem("callerid_data", parent)
{
}
std::string serialize(SerializeFormat format, const Extensible* container, void* item) const
{
callerid_data* dat = static_cast<callerid_data*>(item);
return dat->ToString(format);
}
void unserialize(SerializeFormat format, Extensible* container, const std::string& value)
{
callerid_data* dat = new callerid_data(value);
set_raw(container, dat);
}
callerid_data* get(User* user, bool create)
{
callerid_data* dat = static_cast<callerid_data*>(get_raw(user));
if (create && !dat)
{
dat = new callerid_data;
set_raw(user, dat);
}
return dat;
}
void free(void* item)
{
callerid_data* dat = static_cast<callerid_data*>(item);
// We need to walk the list of users on our accept list, and remove ourselves from their wholistsme.
for (std::set<User *>::iterator it = dat->accepting.begin(); it != dat->accepting.end(); it++)
{
callerid_data *targ = this->get(*it, false);
if (!targ)
continue; // shouldn't happen, but oh well.
std::list<callerid_data*>::iterator it2 = std::find(targ->wholistsme.begin(), targ->wholistsme.end(), dat);
if (it2 != targ->wholistsme.end())
targ->wholistsme.erase(it2);
}
}
};
class User_g : public SimpleUserModeHandler
{
public:
User_g(Module* Creator) : SimpleUserModeHandler(Creator, "callerid", 'g') { }
};
class CommandAccept : public Command
{
public:
CallerIDExtInfo extInfo;
unsigned int maxaccepts;
CommandAccept(Module* Creator) : Command(Creator, "ACCEPT", 1),
extInfo(Creator)
{
syntax = "{[+|-]<nicks>}|*}";
TRANSLATE2(TR_CUSTOM, TR_END);
}
virtual void EncodeParameter(std::string& parameter, int index)
{
if (index != 0)
return;
std::string out = "";
irc::commasepstream nicks(parameter);
std::string tok;
while (nicks.GetToken(tok))
{
if (tok == "*")
{
continue; // Drop list requests, since remote servers ignore them anyway.
}
if (!out.empty())
out.append(",");
bool dash = false;
if (tok[0] == '-')
{
dash = true;
tok.erase(0, 1); // Remove the dash.
}
User* u = ServerInstance->FindNick(tok);
if ((!u) || (u->registered != REG_ALL) || (u->quitting) || (IS_SERVER(u)))
continue;
if (dash)
out.append("-");
out.append(u->uuid);
}
parameter = out;
}
/** Will take any number of nicks (up to MaxTargets), which can be seperated by commas.
* - in front of any nick removes, and an * lists. This effectively means you can do:
* /accept nick1,nick2,nick3,*
* to add 3 nicks and then show your list
*/
CmdResult Handle(const std::vector<std::string> ¶meters, User* user)
{
if (ServerInstance->Parser->LoopCall(user, this, parameters, 0))
return CMD_SUCCESS;
/* Even if callerid mode is not set, we let them manage their ACCEPT list so that if they go +g they can
* have a list already setup. */
std::string tok = parameters[0];
if (tok == "*")
{
if (IS_LOCAL(user))
ListAccept(user);
return CMD_SUCCESS;
}
else if (tok[0] == '-')
{
User* whotoremove = ServerInstance->FindNick(tok.substr(1));
if (whotoremove)
return (RemoveAccept(user, whotoremove) ? CMD_SUCCESS : CMD_FAILURE);
else
return CMD_FAILURE;
}
else
{
User* whotoadd = ServerInstance->FindNick(tok[0] == '+' ? tok.substr(1) : tok);
if ((whotoadd) && (whotoadd->registered == REG_ALL) && (!whotoadd->quitting) && (!IS_SERVER(whotoadd)))
return (AddAccept(user, whotoadd) ? CMD_SUCCESS : CMD_FAILURE);
else
{
user->WriteNumeric(401, "%s %s :No such nick/channel", user->nick.c_str(), tok.c_str());
return CMD_FAILURE;
}
}
}
RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
{
return ROUTE_BROADCAST;
}
void ListAccept(User* user)
{
callerid_data* dat = extInfo.get(user, false);
if (dat)
{
for (std::set<User*>::iterator i = dat->accepting.begin(); i != dat->accepting.end(); ++i)
user->WriteNumeric(281, "%s %s", user->nick.c_str(), (*i)->nick.c_str());
}
user->WriteNumeric(282, "%s :End of ACCEPT list", user->nick.c_str());
}
bool AddAccept(User* user, User* whotoadd)
{
// Add this user to my accept list first, so look me up..
callerid_data* dat = extInfo.get(user, true);
if (dat->accepting.size() >= maxaccepts)
{
user->WriteNumeric(456, "%s :Accept list is full (limit is %d)", user->nick.c_str(), maxaccepts);
return false;
}
if (!dat->accepting.insert(whotoadd).second)
{
user->WriteNumeric(457, "%s %s :is already on your accept list", user->nick.c_str(), whotoadd->nick.c_str());
return false;
}
// Now, look them up, and add me to their list
callerid_data *targ = extInfo.get(whotoadd, true);
targ->wholistsme.push_back(dat);
user->WriteServ("NOTICE %s :%s is now on your accept list", user->nick.c_str(), whotoadd->nick.c_str());
return true;
}
bool RemoveAccept(User* user, User* whotoremove)
{
// Remove them from my list, so look up my list..
callerid_data* dat = extInfo.get(user, false);
if (!dat)
{
user->WriteNumeric(458, "%s %s :is not on your accept list", user->nick.c_str(), whotoremove->nick.c_str());
return false;
}
std::set<User*>::iterator i = dat->accepting.find(whotoremove);
if (i == dat->accepting.end())
{
user->WriteNumeric(458, "%s %s :is not on your accept list", user->nick.c_str(), whotoremove->nick.c_str());
return false;
}
dat->accepting.erase(i);
// Look up their list to remove me.
callerid_data *dat2 = extInfo.get(whotoremove, false);
if (!dat2)
{
// How the fuck is this possible.
return false;
}
std::list<callerid_data*>::iterator it = std::find(dat2->wholistsme.begin(), dat2->wholistsme.end(), dat);
if (it != dat2->wholistsme.end())
// Found me!
dat2->wholistsme.erase(it);
user->WriteServ("NOTICE %s :%s is no longer on your accept list", user->nick.c_str(), whotoremove->nick.c_str());
return true;
}
};
class ModuleCallerID : public Module
{
private:
CommandAccept cmd;
User_g myumode;
// Configuration variables:
bool operoverride; // Operators can override callerid.
bool tracknick; // Allow ACCEPT entries to update with nick changes.
unsigned int notify_cooldown; // Seconds between notifications.
/** Removes a user from all accept lists
* @param who The user to remove from accepts
*/
void RemoveFromAllAccepts(User* who)
{
// First, find the list of people who have me on accept
callerid_data *userdata = cmd.extInfo.get(who, false);
if (!userdata)
return;
// Iterate over the list of people who accept me, and remove all entries
for (std::list<callerid_data *>::iterator it = userdata->wholistsme.begin(); it != userdata->wholistsme.end(); it++)
{
callerid_data *dat = *(it);
// Find me on their callerid list
std::set<User *>::iterator it2 = dat->accepting.find(who);
if (it2 != dat->accepting.end())
dat->accepting.erase(it2);
}
userdata->wholistsme.clear();
}
public:
ModuleCallerID() : cmd(this), myumode(this)
{
}
void init()
{
OnRehash(NULL);
ServerInstance->Modules->AddService(myumode);
ServerInstance->Modules->AddService(cmd);
ServerInstance->Modules->AddService(cmd.extInfo);
Implementation eventlist[] = { I_OnRehash, I_OnUserPostNick, I_OnUserQuit, I_On005Numeric, I_OnUserPreNotice, I_OnUserPreMessage };
ServerInstance->Modules->Attach(eventlist, this, 6);
}
virtual ~ModuleCallerID()
{
}
virtual Version GetVersion()
{
return Version("Implementation of callerid, usermode +g, /accept", VF_COMMON | VF_VENDOR);
}
virtual void On005Numeric(std::string& output)
{
output += " CALLERID=g";
}
ModResult PreText(User* user, User* dest, std::string& text)
{
if (!dest->IsModeSet('g'))
return MOD_RES_PASSTHRU;
if (operoverride && IS_OPER(user))
return MOD_RES_PASSTHRU;
callerid_data* dat = cmd.extInfo.get(dest, true);
std::set<User*>::iterator i = dat->accepting.find(user);
if (i == dat->accepting.end())
{
time_t now = ServerInstance->Time();
/* +g and *not* accepted */
user->WriteNumeric(716, "%s %s :is in +g mode (server-side ignore).", user->nick.c_str(), dest->nick.c_str());
if (now > (dat->lastnotify + (time_t)notify_cooldown))
{
user->WriteNumeric(717, "%s %s :has been informed that you messaged them.", user->nick.c_str(), dest->nick.c_str());
dest->SendText(":%s 718 %s %s %s@%s :is messaging you, and you have umode +g. Use /ACCEPT +%s to allow.",
ServerInstance->Config->ServerName.c_str(), dest->nick.c_str(), user->nick.c_str(), user->ident.c_str(), user->dhost.c_str(), user->nick.c_str());
dat->lastnotify = now;
}
return MOD_RES_DENY;
}
return MOD_RES_PASSTHRU;
}
virtual ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList &exempt_list)
{
if (IS_LOCAL(user) && target_type == TYPE_USER)
return PreText(user, (User*)dest, text);
return MOD_RES_PASSTHRU;
}
virtual ModResult OnUserPreNotice(User* user, void* dest, int target_type, std::string& text, char status, CUList &exempt_list)
{
if (IS_LOCAL(user) && target_type == TYPE_USER)
return PreText(user, (User*)dest, text);
return MOD_RES_PASSTHRU;
}
void OnUserPostNick(User* user, const std::string& oldnick)
{
if (!tracknick)
RemoveFromAllAccepts(user);
}
void OnUserQuit(User* user, const std::string& message, const std::string& oper_message)
{
RemoveFromAllAccepts(user);
}
virtual void OnRehash(User* user)
{
ConfigReader Conf;
cmd.maxaccepts = Conf.ReadInteger("callerid", "maxaccepts", "16", 0, true);
operoverride = Conf.ReadFlag("callerid", "operoverride", "0", 0);
tracknick = Conf.ReadFlag("callerid", "tracknick", "0", 0);
notify_cooldown = Conf.ReadInteger("callerid", "cooldown", "60", 0, true);
}
};
MODULE_INIT(ModuleCallerID)
