- ServerInstance->SendWhoisLine(src, dst, 310, std::string(src->nick)+" "+std::string(dst->nick)+" :is an "+ServerInstance->Config->Network+" Service");
+ const PrefixMode* const pm = mh->IsPrefixMode();
+ if (!pm)
+ return MOD_RES_PASSTHRU;
+
+ /* Check if the parameter is a valid nick/uuid
+ */
+ User *u = ServerInstance->FindNick(param);
+ if (u)
+ {
+ Membership* memb = chan->GetUser(u);
+ /* The target user has +k set on themselves, and you are trying to remove a privilege mode the user has set on themselves.
+ * This includes any prefix permission mode, even those registered in other modules, e.g. +qaohv. Using ::ModeString()
+ * here means that the number of modes is restricted to only modes the user has, limiting it to as short a loop as possible.
+ */
+ if ((u->IsModeSet(bm)) && (memb) && (memb->HasMode(pm)))
+ {
+ /* BZZZT, Denied! */
+ user->WriteNumeric(ERR_CHANOPRIVSNEEDED, chan->name, InspIRCd::Format("You are not permitted to remove privileges from %s services", ServerInstance->Config->Network.c_str()));
+ return MOD_RES_DENY;
+ }
+ }