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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
*
* 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"
#include "modules/ssl.h"
/** Handle /JUMPSERVER
*/
class CommandJumpserver : public Command
{
public:
bool redirect_new_users;
std::string redirect_to;
std::string reason;
int port;
int sslport;
CommandJumpserver(Module* Creator) : Command(Creator, "JUMPSERVER", 0, 4)
{
flags_needed = 'o';
syntax = "[<server> <port>[:<sslport>] <+/-an> <reason>]";
port = 0;
sslport = 0;
redirect_new_users = false;
}
CmdResult Handle (const std::vector<std::string> ¶meters, User *user)
{
int n_done = 0;
reason = (parameters.size() < 4) ? "Please use this server/port instead" : parameters[3];
bool redirect_all_immediately = false;
redirect_new_users = true;
bool direction = true;
std::string n_done_s;
/* No parameters: jumpserver disabled */
if (!parameters.size())
{
if (port)
user->WriteNotice("*** Disabled jumpserver (previously set to '" + redirect_to + ":" + ConvToStr(port) + "')");
else
user->WriteNotice("*** Jumpserver was not enabled.");
port = 0;
sslport = 0;
redirect_to.clear();
return CMD_SUCCESS;
}
port = 0;
redirect_to.clear();
if (parameters.size() >= 3)
{
for (std::string::const_iterator n = parameters[2].begin(); n != parameters[2].end(); ++n)
{
switch (*n)
{
case '+':
direction = true;
break;
case '-':
direction = false;
break;
case 'a':
redirect_all_immediately = direction;
break;
case 'n':
redirect_new_users = direction;
break;
default:
user->WriteNotice("*** Invalid JUMPSERVER flag: " + ConvToStr(*n));
return CMD_FAILURE;
break;
}
}
size_t delimpos = parameters[1].find(':');
port = ConvToInt(parameters[1].substr(0, delimpos ? delimpos : std::string::npos));
sslport = (delimpos == std::string::npos ? 0 : ConvToInt(parameters[1].substr(delimpos + 1)));
if (parameters[1].find_first_not_of("0123456789:") != std::string::npos
|| parameters[1].rfind(':') != delimpos
|| port > 65535 || sslport > 65535)
{
user->WriteNotice("*** Invalid port number");
return CMD_FAILURE;
}
if (redirect_all_immediately)
{
/* Redirect everyone but the oper sending the command */
const UserManager::LocalList& list = ServerInstance->Users.GetLocalUsers();
for (UserManager::LocalList::const_iterator i = list.begin(); i != list.end(); ++i)
{
LocalUser* t = *i;
if (!t->IsOper())
{
t->WriteNumeric(RPL_REDIR, "%s %d :Please use this Server/Port instead", parameters[0].c_str(), GetPort(t));
ServerInstance->Users->QuitUser(t, reason);
n_done++;
}
}
if (n_done)
{
n_done_s = ConvToStr(n_done);
}
}
if (redirect_new_users)
redirect_to = parameters[0];
user->WriteNotice("*** Set jumpserver to server '" + parameters[0] + "' port '" + (port ? ConvToStr(port) : "Auto") + ", SSL " + (sslport ? ConvToStr(sslport) : "Auto") + "', flags '+" +
(redirect_all_immediately ? "a" : "") + (redirect_new_users ? "n'" : "'") +
(n_done ? " (" + n_done_s + "user(s) redirected): " : ": ") + reason);
}
return CMD_SUCCESS;
}
int GetPort(LocalUser* user)
{
int p = (SSLClientCert::GetCertificate(&user->eh) ? sslport : port);
if (p == 0)
p = user->GetServerPort();
return p;
}
};
class ModuleJumpServer : public Module
{
CommandJumpserver js;
public:
ModuleJumpServer() : js(this)
{
}
ModResult OnUserRegister(LocalUser* user) CXX11_OVERRIDE
{
if (js.redirect_new_users)
{
int port = js.GetPort(user);
user->WriteNumeric(RPL_REDIR, "%s %d :Please use this Server/Port instead",
js.redirect_to.c_str(), port);
ServerInstance->Users->QuitUser(user, js.reason);
return MOD_RES_PASSTHRU;
}
return MOD_RES_PASSTHRU;
}
void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
// Emergency way to unlock
if (!status.srcuser)
js.redirect_new_users = false;
}
Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides support for the RPL_REDIR numeric and the /JUMPSERVER command.", VF_VENDOR);
}
};
MODULE_INIT(ModuleJumpServer)
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