-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2009 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ * Copyright (C) 2018 linuxdaemon <linuxdaemon.irc@gmail.com>
+ * Copyright (C) 2014 Adam <Adam@anope.org>
+ * Copyright (C) 2013-2016 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2013, 2017-2018 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2013 Daniel Vassdal <shutter@canternet.org>
+ * 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, 2010 Craig Edwards <brain@inspircd.org>
+ * Copyright (C) 2008 Uli Schlachter <psychon@inspircd.org>
+ * Copyright (C) 2007-2009 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Oliver Lupton <om@inspircd.org>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
*
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * 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 "u_listmode.h"
-/* $ModDesc: Allows an extended ban (+b) syntax redirecting banned users to another channel */
-/* $ModDep: ../../include/u_listmode.h */
+#include "inspircd.h"
+#include "listmode.h"
/* Originally written by Om, January 2009
*/
};
typedef std::vector<BanRedirectEntry> BanRedirectList;
-typedef std::deque<std::string> StringDeque;
class BanRedirect : public ModeWatcher
{
+ ChanModeReference ban;
public:
SimpleExtItem<BanRedirectList> extItem;
- BanRedirect(Module* parent) : ModeWatcher(parent, 'b', MODETYPE_CHANNEL),
- extItem("banredirect", parent)
+ BanRedirect(Module* parent)
+ : ModeWatcher(parent, "ban", MODETYPE_CHANNEL)
+ , ban(parent, "ban")
+ , extItem("banredirect", ExtensionItem::EXT_CHANNEL, parent)
{
}
- bool BeforeMode(User* source, User* dest, Channel* channel, std::string ¶m, bool adding, ModeType type)
+ bool BeforeMode(User* source, User* dest, Channel* channel, std::string& param, bool adding) CXX11_OVERRIDE
{
/* nick!ident@host -> nick!ident@host
* nick!ident@host#chan -> nick!ident@host#chan
* nick#chan -> nick!*@*#chan
*/
- if(channel && (type == MODETYPE_CHANNEL) && param.length())
+ if ((channel) && !param.empty())
{
BanRedirectList* redirects;
std::string mask[4];
enum { NICK, IDENT, HOST, CHAN } current = NICK;
std::string::iterator start_pos = param.begin();
- long maxbans = channel->GetMaxBans();
if (param.length() >= 2 && param[1] == ':')
return true;
- if(adding && (channel->bans.size() > static_cast<unsigned>(maxbans)))
+ if (param.find('#') == std::string::npos)
+ return true;
+
+ ListModeBase* banlm = static_cast<ListModeBase*>(*ban);
+ unsigned int maxbans = banlm->GetLimit(channel);
+ ListModeBase::ModeList* list = banlm->GetList(channel);
+ if ((list) && (adding) && (maxbans <= list->size()))
{
- source->WriteNumeric(478, "%s %s :Channel ban list for %s is full (maximum entries for this channel is %ld)", source->nick.c_str(), channel->name.c_str(), channel->name.c_str(), maxbans);
+ source->WriteNumeric(ERR_BANLISTFULL, channel->name, banlm->GetModeChar(), InspIRCd::Format("Channel ban list for %s is full (maximum entries for this channel is %u)", channel->name.c_str(), maxbans));
return false;
}
switch(*curr)
{
case '!':
+ if (current != NICK)
+ break;
mask[current].assign(start_pos, curr);
current = IDENT;
start_pos = curr+1;
break;
case '@':
+ if (current != IDENT)
+ break;
mask[current].assign(start_pos, curr);
current = HOST;
start_pos = curr+1;
break;
case '#':
- /* bug #921: don't barf when redirecting to ## channels */
- if (current != CHAN)
- {
- mask[current].assign(start_pos, curr);
- current = CHAN;
- start_pos = curr;
- }
+ if (current == CHAN)
+ break;
+ mask[current].assign(start_pos, curr);
+ current = CHAN;
+ start_pos = curr;
break;
}
}
mask[NICK].swap(mask[IDENT]);
}
+ if (!mask[NICK].empty() && mask[IDENT].empty() && mask[HOST].empty())
+ {
+ if (mask[NICK].find('.') != std::string::npos || mask[NICK].find(':') != std::string::npos)
+ {
+ mask[NICK].swap(mask[HOST]);
+ }
+ }
+
for(int i = 0; i < 3; i++)
{
if(mask[i].empty())
if(mask[CHAN].length())
{
- if (IS_LOCAL(source))
+ if (adding && IS_LOCAL(source))
{
- if (!ServerInstance->IsChannel(mask[CHAN].c_str(), ServerInstance->Config->Limits.ChanMax))
+ if (!ServerInstance->IsChannel(mask[CHAN]))
{
- source->WriteNumeric(403, "%s %s :Invalid channel name in redirection (%s)", source->nick.c_str(), channel->name.c_str(), mask[CHAN].c_str());
+ source->WriteNumeric(ERR_NOSUCHCHANNEL, channel->name, InspIRCd::Format("Invalid channel name in redirection (%s)", mask[CHAN].c_str()));
return false;
}
- Channel *c = ServerInstance->FindChan(mask[CHAN].c_str());
+ Channel *c = ServerInstance->FindChan(mask[CHAN]);
if (!c)
{
- source->WriteNumeric(690, "%s :Target channel %s must exist to be set as a redirect.",source->nick.c_str(),mask[CHAN].c_str());
+ source->WriteNumeric(690, InspIRCd::Format("Target channel %s must exist to be set as a redirect.", mask[CHAN].c_str()));
return false;
}
- else if (c->GetPrefixValue(source) < OP_VALUE)
+ else if (adding && c->GetPrefixValue(source) < OP_VALUE)
{
- source->WriteNumeric(690, "%s :You must be opped on %s to set it as a redirect.",source->nick.c_str(), mask[CHAN].c_str());
+ source->WriteNumeric(690, InspIRCd::Format("You must be opped on %s to set it as a redirect.", mask[CHAN].c_str()));
return false;
}
- if (assign(channel->name) == mask[CHAN])
+ if (irc::equals(channel->name, mask[CHAN]))
{
- source->WriteNumeric(690, "%s %s :You cannot set a ban redirection to the channel the ban is on", source->nick.c_str(), channel->name.c_str());
+ source->WriteNumeric(690, channel->name, "You cannot set a ban redirection to the channel the ban is on");
return false;
}
}
redirects = new BanRedirectList;
extItem.set(channel, redirects);
}
+ else
+ {
+ for (BanRedirectList::iterator redir = redirects->begin(); redir != redirects->end(); ++redir)
+ {
+ // Mimic the functionality used when removing the mode
+ if (irc::equals(redir->targetchan, mask[CHAN]) && irc::equals(redir->banmask, param))
+ {
+ // Make sure the +b handler will still set the right ban
+ param.append(mask[CHAN]);
+ // Silently ignore the duplicate and don't set metadata
+ // This still allows channel ops to set/unset a redirect ban to clear "ghost" redirects
+ return true;
+ }
+ }
+ }
/* Here 'param' doesn't have the channel on it yet */
- redirects->push_back(BanRedirectEntry(mask[CHAN].c_str(), param.c_str()));
+ redirects->push_back(BanRedirectEntry(mask[CHAN], param));
/* Now it does */
param.append(mask[CHAN]);
for(BanRedirectList::iterator redir = redirects->begin(); redir != redirects->end(); redir++)
{
- /* Ugly as fuck */
- if((irc::string(redir->targetchan.c_str()) == irc::string(mask[CHAN].c_str())) && (irc::string(redir->banmask.c_str()) == irc::string(param.c_str())))
+ if ((irc::equals(redir->targetchan, mask[CHAN])) && (irc::equals(redir->banmask, param)))
{
redirects->erase(redir);
{
BanRedirect re;
bool nofollow;
- Module* ExceptionModule;
+ ChanModeReference limitmode;
+ ChanModeReference redirectmode;
public:
ModuleBanRedirect()
- : re(this)
+ : re(this)
+ , nofollow(false)
+ , limitmode(this, "limit")
+ , redirectmode(this, "redirect")
{
- nofollow = false;
-
- if(!ServerInstance->Modes->AddModeWatcher(&re))
- throw ModuleException("Could not add mode watcher");
-
- OnRehash(NULL);
-
- ServerInstance->Extensions.Register(&re.extItem);
- Implementation list[] = { I_OnRehash, I_OnUserPreJoin, I_OnChannelDelete };
- ServerInstance->Modules->Attach(list, this, 3);
}
- virtual void OnChannelDelete(Channel* chan)
+ void OnCleanup(ExtensionItem::ExtensibleType type, Extensible* item) CXX11_OVERRIDE
{
- OnCleanup(TYPE_CHANNEL, chan);
- }
-
- virtual void OnCleanup(int target_type, void* item)
- {
- if(target_type == TYPE_CHANNEL)
+ if (type == ExtensionItem::EXT_CHANNEL)
{
Channel* chan = static_cast<Channel*>(item);
BanRedirectList* redirects = re.extItem.get(chan);
if(redirects)
{
- irc::modestacker modestack(false);
- StringDeque stackresult;
- std::vector<std::string> mode_junk;
- mode_junk.push_back(chan->name);
+ ModeHandler* ban = ServerInstance->Modes->FindMode('b', MODETYPE_CHANNEL);
+ Modes::ChangeList changelist;
for(BanRedirectList::iterator i = redirects->begin(); i != redirects->end(); i++)
- {
- modestack.Push('b', i->targetchan.insert(0, i->banmask));
- }
+ changelist.push_remove(ban, i->targetchan.insert(0, i->banmask));
for(BanRedirectList::iterator i = redirects->begin(); i != redirects->end(); i++)
- {
- modestack.PushPlus();
- modestack.Push('b', i->banmask);
- }
+ changelist.push_add(ban, i->banmask);
- while(modestack.GetStackedLine(stackresult))
- {
- mode_junk.insert(mode_junk.end(), stackresult.begin(), stackresult.end());
- ServerInstance->SendMode(mode_junk, ServerInstance->FakeClient);
- mode_junk.erase(mode_junk.begin() + 1, mode_junk.end());
- }
+ ServerInstance->Modes->Process(ServerInstance->FakeClient, chan, NULL, changelist, ModeParser::MODE_LOCALONLY);
}
}
}
- virtual void OnRehash(User* user)
+ ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
{
- ExceptionModule = ServerInstance->Modules->Find("m_banexception.so");
- }
-
- virtual ModResult OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven)
- {
- /* This prevents recursion when a user sets multiple ban redirects in a chain
- * (thanks Potter)
- */
- if (nofollow)
- return MOD_RES_PASSTHRU;
-
- /* Return 1 to prevent the join, 0 to allow it */
if (chan)
{
BanRedirectList* redirects = re.extItem.get(chan);
{
if(InspIRCd::Match(user->GetFullRealHost(), redir->banmask) || InspIRCd::Match(user->GetFullHost(), redir->banmask) || InspIRCd::MatchCIDR(ipmask, redir->banmask))
{
+ /* This prevents recursion when a user sets multiple ban redirects in a chain
+ * (thanks Potter)
+ *
+ * If we're here and nofollow is true then we're already redirecting this user
+ * and there's a redirecting ban set on this channel that matches him, too.
+ * Deny both joins.
+ */
+ if (nofollow)
+ return MOD_RES_DENY;
+
/* tell them they're banned and are being transferred */
Channel* destchan = ServerInstance->FindChan(redir->targetchan);
std::string destlimit;
if (destchan)
- destlimit = destchan->GetModeParameter('l');
+ destlimit = destchan->GetModeParameter(limitmode);
- if(destchan && ServerInstance->Modules->Find("m_redirect.so") && destchan->IsModeSet('L') && !destlimit.empty() && (destchan->GetUserCounter() >= atoi(destlimit.c_str())))
+ if(destchan && destchan->IsModeSet(redirectmode) && !destlimit.empty() && (destchan->GetUserCounter() >= ConvToNum<size_t>(destlimit)))
{
- user->WriteNumeric(474, "%s %s :Cannot join channel (You are banned)", user->nick.c_str(), chan->name.c_str());
- return MOD_RES_ALLOW;
+ user->WriteNumeric(ERR_BANNEDFROMCHAN, chan->name, "Cannot join channel (you're banned)");
+ return MOD_RES_DENY;
}
else
{
- user->WriteNumeric(474, "%s %s :Cannot join channel (You are banned)", user->nick.c_str(), chan->name.c_str());
- user->WriteNumeric(470, "%s %s %s :You are banned from this channel, so you are automatically transfered to the redirected channel.", user->nick.c_str(), chan->name.c_str(), redir->targetchan.c_str());
+ user->WriteNumeric(ERR_BANNEDFROMCHAN, chan->name, "Cannot join channel (you're banned)");
+ user->WriteNumeric(470, chan->name, redir->targetchan, "You are banned from this channel, so you are automatically being transferred to the redirected channel.");
nofollow = true;
- Channel::JoinUser(user, redir->targetchan.c_str(), false, "", false, ServerInstance->Time());
+ Channel::JoinUser(user, redir->targetchan);
nofollow = false;
- return MOD_RES_ALLOW;
+ return MOD_RES_DENY;
}
}
}
return MOD_RES_PASSTHRU;
}
- virtual ~ModuleBanRedirect()
- {
- }
-
- virtual Version GetVersion()
- {
- return Version("Allows an extended ban (+b) syntax redirecting banned users to another channel", VF_COMMON|VF_VENDOR);
- }
-
- void Prioritize()
+ Version GetVersion() CXX11_OVERRIDE
{
- Module* banex = ServerInstance->Modules->Find("m_banexception.so");
- ServerInstance->Modules->SetPriority(this, I_OnUserPreJoin, PRIORITY_BEFORE, &banex);
+ return Version("Allows specifying a channel to redirect a banned user to in the ban mask.", VF_COMMON|VF_VENDOR);
}
};
projects / user / henk / code / inspircd.git / blobdiff