* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd: (C) 2002-2007 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*/
#include "inspircd.h"
-#include "mode.h"
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
#include "u_listmode.h"
/* $ModDesc: Allows an extended ban (+b) syntax redirecting banned users to another channel */
+/* $ModDep: ../../include/u_listmode.h */
-/* Originally written by Om, January 2007
+/* Originally written by Om, January 2009
*/
class BanRedirectEntry
class BanRedirect : public ModeWatcher
{
- private:
- InspIRCd* Srv;
public:
- BanRedirect(InspIRCd* Instance)
- : ModeWatcher(Instance, 'b', MODETYPE_CHANNEL), Srv(Instance)
+ SimpleExtItem<BanRedirectList> extItem;
+ BanRedirect(Module* parent) : ModeWatcher(parent, 'b', MODETYPE_CHANNEL),
+ extItem("banredirect", parent)
{
}
- bool BeforeMode(userrec* source, userrec* dest, chanrec* channel, std::string ¶m, bool adding, ModeType type)
+ bool BeforeMode(User* source, User* dest, Channel* channel, std::string ¶m, bool adding, ModeType type)
{
/* 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())
{
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)))
{
- source->WriteServ("478 %s %s :Channel ban list for %s is full (maximum entries for this channel is %d)", source->nick, channel->name, channel->name, maxbans);
+ 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);
return false;
}
-
+
for(std::string::iterator curr = start_pos; curr != param.end(); curr++)
{
switch(*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 (IS_LOCAL(source))
{
- if(irc::string(channel->name) == irc::string(mask[CHAN].c_str()))
+ if (!ServerInstance->IsChannel(mask[CHAN].c_str(), ServerInstance->Config->Limits.ChanMax))
{
- source->WriteServ("690 %s %s :You cannot set a ban redirection to the channel the ban is on", source->nick, channel->name);
+ 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;
}
- else
+
+ Channel *c = ServerInstance->FindChan(mask[CHAN].c_str());
+ if (!c)
{
- 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
+ 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 (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;
+ }
+ }
+
+ if(adding)
+ {
+ /* It's a properly valid redirecting ban, and we're adding it */
+ redirects = extItem.get(channel);
+ if (!redirects)
+ {
+ redirects = new BanRedirectList;
+ extItem.set(channel, 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
+ {
+ /* 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->WriteServ("403 %s %s :Invalid channel name in redirection (%s)", source->nick, channel->name, 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->AddModeWatcher(re))
+
+ if(!ServerInstance->Modes->AddModeWatcher(&re))
throw ModuleException("Could not add mode watcher");
- OnRehash(NULL, "");
- }
-
- void Implements(char* List)
- {
- List[I_OnRehash] = List[I_OnUserPreJoin] = List[I_OnChannelDelete] = List[I_OnCleanup] = 1;
+ OnRehash(NULL);
+
+ ServerInstance->Extensions.Register(&re.extItem);
+ Implementation list[] = { I_OnRehash, I_OnUserPreJoin, I_OnChannelDelete };
+ ServerInstance->Modules->Attach(list, this, 3);
}
-
- virtual void OnChannelDelete(chanrec* chan)
+
+ virtual void OnChannelDelete(Channel* chan)
{
OnCleanup(TYPE_CHANNEL, chan);
}
-
+
virtual void OnCleanup(int target_type, void* item)
{
if(target_type == TYPE_CHANNEL)
{
- chanrec* chan = static_cast<chanrec*>(item);
- BanRedirectList* redirects;
-
- if(chan->GetExt("banredirects", redirects))
+ Channel* chan = static_cast<Channel*>(item);
+ BanRedirectList* redirects = re.extItem.get(chan);
+
+ if(redirects)
{
irc::modestacker modestack(false);
StringDeque stackresult;
- const char* mode_junk[MAXMODES+2];
- userrec* myhorriblefakeuser = new userrec(ServerInstance);
- myhorriblefakeuser->SetFd(FD_MAGIC_NUMBER);
-
- mode_junk[0] = chan->name;
-
+ 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))
{
- for(StringDeque::size_type i = 0; i < stackresult.size(); i++)
- {
- mode_junk[i+1] = stackresult[i].c_str();
- }
-
- ServerInstance->SendMode(mode_junk, stackresult.size() + 1, myhorriblefakeuser);
+ 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());
}
-
- DELETE(myhorriblefakeuser);
- DELETE(redirects);
- chan->Shrink("banredirects");
}
}
}
- virtual void OnRehash(userrec* user, const std::string ¶m)
+ virtual void OnRehash(User* user)
{
- ExceptionModule = ServerInstance->FindModule("m_banexception.so");
+ ExceptionModule = ServerInstance->Modules->Find("m_banexception.so");
}
- virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname, std::string &privs)
+ 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 0;
+ return MOD_RES_PASSTHRU;
/* 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))
{
/* tell them they're banned and are being transferred */
- chanrec* destchan = ServerInstance->FindChan(redir->targetchan);
-
- if(destchan && ServerInstance->FindModule("m_redirect.so") && destchan->IsModeSet('L') && destchan->limit && (destchan->GetUserCounter() >= destchan->limit))
+ Channel* destchan = ServerInstance->FindChan(redir->targetchan);
+ 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->WriteServ("474 %s %s :Cannot join channel (You are banned)", user->nick, chan->name);
- return 1;
+ user->WriteNumeric(474, "%s %s :Cannot join channel (You are banned)", user->nick.c_str(), chan->name.c_str());
+ return MOD_RES_ALLOW;
}
else
{
- user->WriteServ("474 %s %s :Cannot join channel (You are banned)", user->nick, chan->name);
- user->WriteServ("470 %s :You are being automatically redirected to %s", user->nick, redir->targetchan.c_str());
+ 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());
nofollow = true;
- chanrec::JoinUser(ServerInstance, user, redir->targetchan.c_str(), false, "", ServerInstance->Time(true));
+ Channel::JoinUser(user, redir->targetchan.c_str(), false, "", false, ServerInstance->Time());
nofollow = false;
- return 1;
+ return MOD_RES_ALLOW;
}
}
}
}
}
- return 0;
+ return MOD_RES_PASSTHRU;
}
virtual ~ModuleBanRedirect()
{
- ServerInstance->Modes->DelModeWatcher(re);
- DELETE(re);
}
-
+
virtual Version GetVersion()
{
- return Version(1, 0, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);
+ return Version("Allows an extended ban (+b) syntax redirecting banned users to another channel", VF_COMMON|VF_VENDOR);
}
-
- Priority Prioritize()
+
+ void Prioritize()
{
- return (Priority)ServerInstance->PriorityBefore("m_banexception.so");
+ Module* banex = ServerInstance->Modules->Find("m_banexception.so");
+ ServerInstance->Modules->SetPriority(this, I_OnUserPreJoin, PRIORITY_BEFORE, &banex);
}
};
-
MODULE_INIT(ModuleBanRedirect)
projects / user / henk / code / inspircd.git / blobdiff