-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2007, 2009 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2007 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2007 Oliver Lupton <oliverlupton@gmail.com>
*
- * 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"
+#include "listmode.h"
/* $ModDesc: Allows an extended ban (+b) syntax redirecting banned users to another channel */
-/* Originally written by Om, January 2008
+/* Originally written by Om, January 2009
*/
-class BanRedirectEntry : public classbase
+class BanRedirectEntry
{
public:
std::string targetchan;
};
typedef std::vector<BanRedirectEntry> BanRedirectList;
-typedef std::deque<std::string> StringDeque;
class BanRedirect : public ModeWatcher
{
- private:
- InspIRCd* Srv;
+ ModeReference ban;
public:
- BanRedirect(InspIRCd* Instance)
- : ModeWatcher(Instance, 'b', MODETYPE_CHANNEL), Srv(Instance)
+ SimpleExtItem<BanRedirectList> extItem;
+ BanRedirect(Module* parent)
+ : ModeWatcher(parent, "ban", MODETYPE_CHANNEL)
+ , ban(parent, "ban")
+ , extItem("banredirect", parent)
{
}
- bool BeforeMode(User* source, User* dest, Channel* channel, std::string ¶m, bool adding, ModeType type, bool)
+ bool BeforeMode(User* source, User* dest, Channel* channel, std::string ¶m, bool adding)
{
/* nick!ident@host -> nick!ident@host
* nick!ident@host#chan -> nick!ident@host#chan
* nick!ident#chan -> nick!ident@*#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(adding && (channel->bans.size() > static_cast<unsigned>(maxbans)))
+
+ if (param.length() >= 2 && param[1] == ':')
+ 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(478, "%s %s :Channel ban list for %s is full (maximum entries for this channel is %u)", source->nick.c_str(), channel->name.c_str(), channel->name.c_str(), maxbans);
return false;
}
-
+
for(std::string::iterator curr = start_pos; curr != param.end(); curr++)
{
switch(*curr)
start_pos = curr+1;
break;
case '#':
- mask[current].assign(start_pos, curr);
- current = CHAN;
- start_pos = curr;
+ /* bug #921: don't barf when redirecting to ## channels */
+ if (current != CHAN)
+ {
+ mask[current].assign(start_pos, curr);
+ current = CHAN;
+ start_pos = curr;
+ }
break;
}
}
-
+
if(mask[current].empty())
{
- mask[current].assign(start_pos, param.end());
+ mask[current].assign(start_pos, param.end());
}
-
+
/* nick@host wants to be changed to *!nick@host rather than nick!*@host... */
if(mask[NICK].length() && mask[HOST].length() && mask[IDENT].empty())
{
/* std::string::swap() is fast - it runs in constant time */
mask[NICK].swap(mask[IDENT]);
}
-
+
for(int i = 0; i < 3; i++)
{
if(mask[i].empty())
mask[i].assign("*");
}
}
-
+
param.assign(mask[NICK]).append(1, '!').append(mask[IDENT]).append(1, '@').append(mask[HOST]);
-
+
if(mask[CHAN].length())
{
- if(Srv->IsChannel(mask[CHAN].c_str()))
+ if (adding && IS_LOCAL(source))
{
+ 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());
+ return false;
+ }
+
+ 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());
+ return false;
+ }
+ 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());
+ return false;
+ }
+
if (assign(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());
return false;
}
- else
+ }
+
+ if(adding)
+ {
+ /* It's a properly valid redirecting ban, and we're adding it */
+ redirects = extItem.get(channel);
+ if (!redirects)
{
- if(adding)
- {
- /* It's a properly valid redirecting ban, and we're adding it */
- if(!channel->GetExt("banredirects", redirects))
- {
- redirects = new BanRedirectList;
- channel->Extend("banredirects", redirects);
- }
-
- /* Here 'param' doesn't have the channel on it yet */
- redirects->push_back(BanRedirectEntry(mask[CHAN].c_str(), param.c_str()));
-
- /* Now it does */
- param.append(mask[CHAN]);
- }
- else
+ redirects = new BanRedirectList;
+ extItem.set(channel, redirects);
+ }
+
+ /* Here 'param' doesn't have the channel on it yet */
+ redirects->push_back(BanRedirectEntry(mask[CHAN], param));
+
+ /* Now it does */
+ param.append(mask[CHAN]);
+ }
+ else
+ {
+ /* Removing a ban, if there's no extensible there are no redirecting bans and we're fine. */
+ redirects = extItem.get(channel);
+ if (redirects)
+ {
+ /* But there were, so we need to remove the matching one if there is one */
+
+ for(BanRedirectList::iterator redir = redirects->begin(); redir != redirects->end(); redir++)
{
- /* Removing a ban, if there's no extensible there are no redirecting bans and we're fine. */
- if(channel->GetExt("banredirects", redirects))
+ /* 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())))
{
- /* But there were, so we need to remove the matching one if there is one */
-
- for(BanRedirectList::iterator redir = redirects->begin(); redir != redirects->end(); redir++)
+ redirects->erase(redir);
+
+ if(redirects->empty())
{
- /* 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())))
- {
- redirects->erase(redir);
-
- if(redirects->empty())
- {
- delete redirects;
- channel->Shrink("banredirects");
- }
-
- break;
- }
+ extItem.unset(channel);
}
+
+ break;
}
-
- /* Append the channel so the default +b handler can remove the entry too */
- param.append(mask[CHAN]);
}
}
- }
- else
- {
- source->WriteNumeric(403, "%s %s :Invalid channel name in redirection (%s)", source->nick.c_str(), channel->name.c_str(), mask[CHAN].c_str());
- return false;
+
+ /* Append the channel so the default +b handler can remove the entry too */
+ param.append(mask[CHAN]);
}
}
}
-
+
return true;
}
};
class ModuleBanRedirect : public Module
{
- BanRedirect* re;
+ BanRedirect re;
bool nofollow;
- Module* ExceptionModule;
public:
- ModuleBanRedirect(InspIRCd* Me)
- : Module(Me)
+ ModuleBanRedirect()
+ : re(this)
{
- re = new BanRedirect(Me);
nofollow = false;
-
- if(!ServerInstance->Modes->AddModeWatcher(re))
- {
- delete re;
- throw ModuleException("Could not add mode watcher");
- }
-
- OnRehash(NULL, "");
+ }
- Implementation list[] = { I_OnRehash, I_OnUserPreJoin, I_OnChannelDelete, I_OnCleanup };
- Me->Modules->Attach(list, this, 4);
- }
-
- virtual void OnChannelDelete(Channel* chan)
+ void init() CXX11_OVERRIDE
{
- OnCleanup(TYPE_CHANNEL, chan);
+ ServerInstance->Modes->AddModeWatcher(&re);
+ ServerInstance->Modules->AddService(re.extItem);
+ Implementation list[] = { I_OnUserPreJoin };
+ ServerInstance->Modules->Attach(list, this, sizeof(list)/sizeof(Implementation));
}
-
- virtual void OnCleanup(int target_type, void* item)
+
+ void OnCleanup(int target_type, void* item) CXX11_OVERRIDE
{
if(target_type == TYPE_CHANNEL)
{
Channel* chan = static_cast<Channel*>(item);
- BanRedirectList* redirects;
-
- if(chan->GetExt("banredirects", redirects))
+ 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);
-
+
for(BanRedirectList::iterator i = redirects->begin(); i != redirects->end(); i++)
{
modestack.Push('b', i->targetchan.insert(0, i->banmask));
}
-
+
for(BanRedirectList::iterator i = redirects->begin(); i != redirects->end(); i++)
{
modestack.PushPlus();
modestack.Push('b', i->banmask);
}
-
- while(modestack.GetStackedLine(stackresult))
+
+ std::vector<std::string> stackresult;
+ stackresult.push_back(chan->name);
+ while (modestack.GetStackedLine(stackresult))
{
- for(StringDeque::size_type i = 0; i < stackresult.size(); i++)
- {
- mode_junk.push_back(stackresult[i]);
- }
-
- ServerInstance->SendMode(mode_junk, ServerInstance->FakeClient);
+ ServerInstance->Modes->Process(stackresult, ServerInstance->FakeClient, ModeParser::MODE_LOCALONLY);
+ stackresult.erase(stackresult.begin() + 1, stackresult.end());
}
-
- delete redirects;
- chan->Shrink("banredirects");
}
}
}
- virtual void OnRehash(User* user, const std::string ¶m)
- {
- ExceptionModule = ServerInstance->Modules->Find("m_banexception.so");
- }
-
- virtual int OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven)
+ ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven) CXX11_OVERRIDE
{
- /* This prevents recursion when a user sets multiple ban redirects in a chain
- * (thanks Potter)
- */
- if (nofollow)
- return 0;
-
- /* Return 1 to prevent the join, 0 to allow it */
if (chan)
{
- BanRedirectList* redirects;
-
- if(chan->GetExt("banredirects", redirects))
+ BanRedirectList* redirects = re.extItem.get(chan);
+
+ if (redirects)
{
/* We actually had some ban redirects to check */
-
+
/* This was replaced with user->MakeHostIP() when I had a snprintf(), but MakeHostIP() doesn't seem to add the nick.
* Maybe we should have a GetFullIPHost() or something to match GetFullHost() and GetFullRealHost?
*/
- if (ExceptionModule)
+ ModResult result;
+ FIRST_MOD_RESULT(OnCheckChannelBan, result, (user, chan));
+ if (result == MOD_RES_ALLOW)
{
- ListModeRequest n(this, ExceptionModule, user, chan);
- /* Users with ban exceptions are allowed to join without being redirected */
- if (n.Send())
- return 0;
+ // they have a ban exception
+ return MOD_RES_PASSTHRU;
}
std::string ipmask(user->nick);
ipmask.append(1, '!').append(user->MakeHostIP());
-
+
for(BanRedirectList::iterator redir = redirects->begin(); redir != redirects->end(); redir++)
{
- if(ServerInstance->MatchText(user->GetFullRealHost(), redir->banmask) || ServerInstance->MatchText(user->GetFullHost(), redir->banmask) || ServerInstance->MatchText(ipmask, redir->banmask))
+ 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);
-
- if(destchan && ServerInstance->Modules->Find("m_redirect.so") && destchan->IsModeSet('L') && destchan->limit && (destchan->GetUserCounter() >= destchan->limit))
+ std::string destlimit;
+
+ if (destchan)
+ destlimit = destchan->GetModeParameter('l');
+
+ if(destchan && ServerInstance->Modules->Find("m_redirect.so") && destchan->IsModeSet('L') && !destlimit.empty() && (destchan->GetUserCounter() >= atoi(destlimit.c_str())))
{
user->WriteNumeric(474, "%s %s :Cannot join channel (You are banned)", user->nick.c_str(), chan->name.c_str());
- return 1;
+ 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 :You are being automatically redirected to %s", user->nick.c_str(), redir->targetchan.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());
nofollow = true;
- Channel::JoinUser(ServerInstance, user, redir->targetchan.c_str(), false, "", false, ServerInstance->Time());
+ Channel::JoinUser(user, redir->targetchan);
nofollow = false;
- return 1;
+ return MOD_RES_DENY;
}
}
}
}
}
- return 0;
+ return MOD_RES_PASSTHRU;
}
- virtual ~ModuleBanRedirect()
- {
- ServerInstance->Modes->DelModeWatcher(re);
- delete re;
- }
-
- virtual Version GetVersion()
+ ~ModuleBanRedirect()
{
- return Version(1, 0, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);
+ /* XXX is this the best place to do this? */
+ if (!ServerInstance->Modes->DelModeWatcher(&re))
+ ServerInstance->Logs->Log("m_banredirect.so", LOG_DEBUG, "Failed to delete modewatcher!");
}
-
- void Prioritize()
+
+ Version GetVersion() CXX11_OVERRIDE
{
- Module* banex = ServerInstance->Modules->Find("m_banexception.so");
- ServerInstance->Modules->SetPriority(this, I_OnUserPreJoin, PRIO_BEFORE, &banex);
+ return Version("Allows an extended ban (+b) syntax redirecting banned users to another channel", VF_COMMON|VF_VENDOR);
}
};
projects / user / henk / code / inspircd.git / blobdiff