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Add CHANMSG oper override #1422

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Add CHANMSG oper override #1422

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45 changes: 44 additions & 1 deletion src/modules/m_override.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@ class Override : public SimpleUserModeHandler

class ModuleOverride : public Module
{
bool active;
bool RequireKey;
bool NoisyOverride;
bool UmodeEnabled;
Expand Down Expand Up @@ -78,7 +79,8 @@ class ModuleOverride : public Module

public:
ModuleOverride()
: UmodeEnabled(false)
: active(false)
, UmodeEnabled(false)
, ou(this)
, topiclock(this, "topiclock")
, inviteonly(this, "inviteonly")
Expand Down Expand Up @@ -218,6 +220,47 @@ class ModuleOverride : public Module
return MOD_RES_PASSTHRU;
}

// Begin override for CHANMSG (bypassing external modules' privmsg restirctions such as muteban and chanfilter)
ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list, MessageType msgtype) CXX11_OVERRIDE
{
if (active)
return MOD_RES_PASSTHRU;

ModResult MOD_RESULT;

if (target_type == TYPE_CHANNEL && user->IsOper() && CanOverride(user, "CHANMSG"))
{
active = true;
FIRST_MOD_RESULT(OnUserPreMessage, MOD_RESULT, (user, dest, target_type, text, status, exempt_list, msgtype));
active = false;

// If there is something stopping us from sending our privmsg to the channel then we override
if (MOD_RESULT == MOD_RES_DENY)
{
Channel* channel = static_cast<Channel*>(dest);
ServerInstance->SNO->WriteGlobalSno('v',user->nick+" used oper override to send a message on "+channel->name);
return MOD_RES_ALLOW;
}
// We already ran FIRST_MOD_RESULT, so if there was no MOD_RES_DENY then they were all passthrus, so there's no point in re-running it anyway
return MOD_RES_ALLOW;
}
return MOD_RES_PASSTHRU;
}

// For preventing "cannot send message to channel" errors during CHANMSG override
ModResult OnNumeric(User* user, const Numeric::Numeric& numeric) CXX11_OVERRIDE
{
if (!active || numeric.GetNumeric() != ERR_CANNOTSENDTOCHAN)
return MOD_RES_PASSTHRU;

return MOD_RES_DENY;
}

void Prioritize() CXX11_OVERRIDE
{
ServerInstance->Modules->SetPriority(this, I_OnUserPreMessage, PRIORITY_FIRST);
}

Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides support for allowing opers to override certain things",VF_VENDOR);
Expand Down