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|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2009 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include <stdarg.h>
class DelayJoinMode : public ModeHandler
{
private:
CUList empty;
Module* Creator;
public:
DelayJoinMode(InspIRCd* Instance, Module* Parent) : ModeHandler(Instance, 'D', 0, 0, false, MODETYPE_CHANNEL, false), Creator(Parent) {};
ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding, bool);
};
class ModuleDelayJoin : public Module
{
private:
DelayJoinMode* djm;
CUList nl;
public:
ModuleDelayJoin(InspIRCd* Me) : Module(Me)
{
djm = new DelayJoinMode(ServerInstance, this);
if (!ServerInstance->Modes->AddMode(djm))
throw ModuleException("Could not add new modes!");
Implementation eventlist[] = { I_OnUserJoin, I_OnUserPart, I_OnUserKick, I_OnUserQuit, I_OnNamesListItem, I_OnText, I_OnHostCycle };
ServerInstance->Modules->Attach(eventlist, this, 7);
}
virtual ~ModuleDelayJoin();
virtual Version GetVersion();
virtual void OnNamesListItem(User* issuer, User* user, Channel* channel, std::string &prefixes, std::string &nick);
virtual void OnUserJoin(User* user, Channel* channel, bool sync, bool &silent);
bool OnHostCycle(User* user);
void OnUserPart(User* user, Channel* channel, std::string &partmessage, bool &silent);
void OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent);
void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message);
void OnText(User* user, void* dest, int target_type, const std::string &text, char status, CUList &exempt_list);
void WriteCommonFrom(User *user, Channel* channel, const char* text, ...) CUSTOM_PRINTF(4, 5);
};
/* $ModDesc: Allows for delay-join channels (+D) where users dont appear to join until they speak */
ModeAction DelayJoinMode::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding, bool)
{
if (channel->IsModeSet('D') != adding)
{
if (IS_LOCAL(source) && (channel->GetStatus(source) < STATUS_OP))
{
source->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :Only channel operators may %sset channel mode +D", source->nick.c_str(), channel->name.c_str(), adding ? "" : "un");
return MODEACTION_DENY;
}
else
{
if (channel->IsModeSet('D'))
{
/*
* Make all users visible, as +D is being removed. If we don't do this,
* they remain permanently invisible on this channel!
*/
CUList* names = channel->GetUsers();
for (CUListIter n = names->begin(); n != names->end(); ++n)
Creator->OnText(n->first, channel, TYPE_CHANNEL, "", 0, empty);
}
channel->SetMode('D', adding);
return MODEACTION_ALLOW;
}
}
else
{
return MODEACTION_DENY;
}
}
ModuleDelayJoin::~ModuleDelayJoin()
{
ServerInstance->Modes->DelMode(djm);
delete djm;
}
Version ModuleDelayJoin::GetVersion()
{
return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
}
void ModuleDelayJoin::OnNamesListItem(User* issuer, User* user, Channel* channel, std::string &prefixes, std::string &nick)
{
if (!channel->IsModeSet('D'))
return;
if (nick.empty())
return;
/* don't prevent the user from seeing themself */
if (issuer == user)
return;
/* If the user is hidden by delayed join, hide them from the NAMES list */
std::string key("delayjoin_");
key.append(channel->name);
if (user->GetExt(key))
nick.clear();
}
void ModuleDelayJoin::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
{
if (channel->IsModeSet('D'))
{
silent = true;
/* Because we silenced the event, make sure it reaches the user whos joining (but only them of course) */
user->WriteFrom(user, "JOIN %s", channel->name.c_str());
/* This metadata tells the module the user is delayed join on this specific channel */
user->Extend("delayjoin_"+channel->name);
/* This metadata tells the module the user is delayed join on at least one (or more) channels.
* It is only cleared when the user is no longer on ANY +D channels.
*/
if (!user->GetExt("delayjoin"))
user->Extend("delayjoin");
}
}
void ModuleDelayJoin::OnUserPart(User* user, Channel* channel, std::string &partmessage, bool &silent)
{
if (channel->IsModeSet('D'))
{
if (user->GetExt("delayjoin_"+channel->name))
{
silent = true;
/* Because we silenced the event, make sure it reaches the user whos leaving (but only them of course) */
user->WriteFrom(user, "PART %s%s%s", channel->name.c_str(), partmessage.empty() ? "" : " :", partmessage.empty() ? "" : partmessage.c_str());
}
}
}
void ModuleDelayJoin::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
{
if (chan->IsModeSet('D'))
{
/* Send silenced event only to the user being kicked and the user doing the kick */
if (user->GetExt("delayjoin_"+chan->name))
{
silent = true;
user->WriteFrom(source, "KICK %s %s %s", chan->name.c_str(), user->nick.c_str(), reason.c_str());
}
}
}
bool ModuleDelayJoin::OnHostCycle(User* user)
{
return user->GetExt("delayjoin");
}
void ModuleDelayJoin::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
{
Command* parthandler = ServerInstance->Parser->GetHandler("PART");
if (parthandler && user->GetExt("delayjoin"))
{
for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
{
std::vector<std::string> parameters;
parameters.push_back(f->first->name);
/* This triggers our OnUserPart, above, making the PART silent */
parthandler->Handle(parameters, user);
}
}
}
void ModuleDelayJoin::OnText(User* user, void* dest, int target_type, const std::string &text, char status, CUList &exempt_list)
{
/* Server origin */
if (!user)
return;
if (target_type != TYPE_CHANNEL)
return;
Channel* channel = (Channel*) dest;
if (!user->GetExt("delayjoin_"+channel->name))
return;
/* Display the join to everyone else (the user who joined got it earlier) */
this->WriteCommonFrom(user, channel, "JOIN %s", channel->name.c_str());
std::string n = this->ServerInstance->Modes->ModeString(user, channel);
if (n.length() > 0)
this->WriteCommonFrom(user, channel, "MODE %s +%s", channel->name.c_str(), n.c_str());
/* Shrink off the neccessary metadata for a specific channel */
user->Shrink("delayjoin_"+channel->name);
/* Check if the user is left on any other +D channels, if so don't take away the
* metadata that says theyre on one or more channels
*/
for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
if (f->first->IsModeSet('D'))
return;
user->Shrink("delayjoin");
}
// .. is there a real need to duplicate WriteCommonExcept?
void ModuleDelayJoin::WriteCommonFrom(User *user, Channel* channel, const char* text, ...)
{
va_list argsPtr;
char textbuffer[MAXBUF];
char tb[MAXBUF];
va_start(argsPtr, text);
vsnprintf(textbuffer, MAXBUF, text, argsPtr);
va_end(argsPtr);
snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(), textbuffer);
CUList *ulist = channel->GetUsers();
for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
{
/* User doesnt get a JOIN sent to themselves */
if (user == i->first)
continue;
/* Users with a visibility state that hides them dont appear */
if (user->Visibility && !user->Visibility->VisibleTo(i->first))
continue;
i->first->Write(std::string(tb));
}
}
MODULE_INIT(ModuleDelayJoin)
|
