Add ns_identify:maxlogins to limit the max number of concurrent login…

…s per account

data/nickserv.example.conf

@@ -381,7 +381,15 @@ command { service = "NickServ"; name = "UNGROUP"; command = "nickserv/ungroup";
  *
  * Used for identifying to accounts.
  */
-module { name = "ns_identify" }
+module
+{
+	name = "ns_identify"
+
+	/*
+	 * If set, limits the number of concurrent users that can be logged in as a given account at once.
+	 */
+	maxlogins = 10
+}
 command { service = "NickServ"; name = "ID"; command = "nickserv/identify"; hide = true; }
 command { service = "NickServ"; name = "IDENTIFY"; command = "nickserv/identify"; }
 

docs/Changes.conf

@@ -1,3 +1,7 @@
+Anope Version 2.0.3-git
+-------------------
+Add ns_identify:maxlogins to limit the max number of concurrent logins per account
+
 Anope Version 2.0.2
 -------------------
 Add an operserv/oper/modify privilege, required to use oper add and oper del

modules/commands/ns_identify.cpp

@@ -77,16 +77,27 @@ class CommandNSIdentify : public Command
 
 		NickAlias *na = NickAlias::Find(nick);
 		if (na && na->nc->HasExt("NS_SUSPENDED"))
+		{
 			source.Reply(NICK_X_SUSPENDED, na->nick.c_str());
-		else if (u->Account() && na && u->Account() == na->nc)
+			return;
+		}
+
+		if (u->Account() && na && u->Account() == na->nc)
+		{
 			source.Reply(_("You are already identified."));
-		else
+			return;
+		}
+
+		unsigned int maxlogins = Config->GetModule(this->owner)->Get<unsigned int>("maxlogins");
+		if (na && maxlogins && na->nc->users.size() >= maxlogins)
 		{
-			NSIdentifyRequest *req = new NSIdentifyRequest(owner, source, this, na ? na->nc->display : nick, pass);
-			FOREACH_MOD(OnCheckAuthentication, (u, req));
-			req->Dispatch();
+			source.Reply(_("Account \2%s\2 has exceeeded the maximum number of simultaneous logins (%u)."), na->nc->display.c_str(), maxlogins);
+			return;
 		}
-		return;
+
+		NSIdentifyRequest *req = new NSIdentifyRequest(owner, source, this, na ? na->nc->display : nick, pass);
+		FOREACH_MOD(OnCheckAuthentication, (u, req));
+		req->Dispatch();
 	}
 
 	bool OnHelp(CommandSource &source, const Anope::string &subcommand) anope_override