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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
* Copyright (C) 2006 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"
#include "mode.h"
#include "channels.h"
#include "users.h"
#include "builtinmodes.h"
ModeUserServerNoticeMask::ModeUserServerNoticeMask() : ModeHandler(NULL, "snomask", 's', PARAM_SETONLY, MODETYPE_USER)
{
oper = true;
}
ModeAction ModeUserServerNoticeMask::OnModeChange(User* source, User* dest, Channel*, std::string ¶meter, bool adding)
{
if (adding)
{
dest->SetMode(this, true);
// Process the parameter (remove chars we don't understand, remove redundant chars, etc.)
parameter = ProcessNoticeMasks(dest, parameter);
return MODEACTION_ALLOW;
}
else
{
if (dest->IsModeSet(this))
{
dest->SetMode(this, false);
dest->snomasks.reset();
return MODEACTION_ALLOW;
}
}
// Mode not set and trying to unset, deny
return MODEACTION_DENY;
}
std::string ModeUserServerNoticeMask::GetUserParameter(User* user)
{
std::string ret;
if (!user->IsModeSet(this))
return ret;
ret.push_back('+');
for (unsigned char n = 0; n < 64; n++)
{
if (user->snomasks[n])
ret.push_back(n + 'A');
}
return ret;
}
void ModeUserServerNoticeMask::OnParameterMissing(User* user, User* dest, Channel* channel)
{
user->WriteNotice("*** The user mode +s requires a parameter (server notice mask). Please provide a parameter, e.g. '+s +*'.");
}
std::string ModeUserServerNoticeMask::ProcessNoticeMasks(User* user, const std::string& input)
{
bool adding = true;
std::bitset<64> curr = user->snomasks;
for (std::string::const_iterator i = input.begin(); i != input.end(); ++i)
{
switch (*i)
{
case '+':
adding = true;
break;
case '-':
adding = false;
break;
case '*':
for (size_t j = 0; j < 64; j++)
{
if (ServerInstance->SNO->IsSnomaskUsable(j+'A'))
curr[j] = adding;
}
break;
default:
// For local users check whether the given snomask is valid and enabled - IsSnomaskUsable() tests both.
// For remote users accept what we were told, unless the snomask char is not a letter.
if (IS_LOCAL(user))
{
if (!ServerInstance->SNO->IsSnomaskUsable(*i))
{
user->WriteNumeric(ERR_UNKNOWNSNOMASK, "%s %c :is unknown snomask char to me", user->nick.c_str(), *i);
continue;
}
}
else if (!(((*i >= 'a') && (*i <= 'z')) || ((*i >= 'A') && (*i <= 'Z'))))
continue;
size_t index = ((*i) - 'A');
curr[index] = adding;
break;
}
}
std::string plus = "+";
std::string minus = "-";
// Apply changes and construct two strings consisting of the newly added and the removed snomask chars
for (size_t i = 0; i < 64; i++)
{
bool isset = curr[i];
if (user->snomasks[i] != isset)
{
user->snomasks[i] = isset;
std::string& appendhere = (isset ? plus : minus);
appendhere.push_back(i+'A');
}
}
// Create the final string that will be shown to the user and sent to servers
// Form: "+ABc-de"
std::string output;
if (plus.length() > 1)
output = plus;
if (minus.length() > 1)
output += minus;
// Unset the snomask usermode itself if every snomask was unset
if (user->snomasks.none())
user->SetMode(this, false);
return output;
}
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