Fix module event prioritization which was broken with the newer

auto-attach event stuff.

Also remove logically dead code from os_defcon, and make os_defcon akill
similar masks to os_session when enforcing session akills.

Fixes #1618 which relies on os_session to be prioritized before
os_defcon.

include/modules.h

@@ -285,6 +285,8 @@ class CoreExport Module : public Extensible
 	 */
 	ModuleVersion GetVersion() const;
 
+	virtual void Prioritize();
+
 	/* Everything below here are events. Modules must ModuleManager::Attach to these events
 	 * before they will be called.
 	 */

modules/commands/os_defcon.cpp

@@ -496,11 +496,6 @@ class OSDefcon : public Module
 			XLine x("*@" + u->host, OperServ ? OperServ->nick : "defcon", Anope::CurTime + DConfig.akillexpire, DConfig.akillreason, XLineManager::GenerateUID());
 			akills->Send(NULL, &x);
 		}
-		if (DConfig.Check(DEFCON_NO_NEW_CLIENTS) || DConfig.Check(DEFCON_AKILL_NEW_CLIENTS))
-		{
-			u->Kill(OperServ ? OperServ->nick : "", DConfig.akillreason);
-			return;
-		}
 
 		if (DConfig.Check(DEFCON_NO_NEW_CLIENTS) || DConfig.Check(DEFCON_AKILL_NEW_CLIENTS))
 		{
@@ -529,9 +524,9 @@ class OSDefcon : public Module
 				++session->hits;
 				if (akills && DConfig.max_session_kill && session->hits >= DConfig.max_session_kill)
 				{
-					XLine x("*@" + u->host, OperServ ? OperServ->nick : "", Anope::CurTime + DConfig.session_autokill_expiry, "Defcon session limit exceeded", XLineManager::GenerateUID());
+					XLine x("*@" + session->addr.mask(), OperServ ? OperServ->nick : "", Anope::CurTime + DConfig.session_autokill_expiry, "Defcon session limit exceeded", XLineManager::GenerateUID());
 					akills->Send(NULL, &x);
-					Log(OperServ, "akill/defcon") << "[DEFCON] Added a temporary AKILL for \002*@" << u->host << "\002 due to excessive connections";
+					Log(OperServ, "akill/defcon") << "[DEFCON] Added a temporary AKILL for \002*@" << session->addr.mask() << "\002 due to excessive connections";
 				}
 				else
 				{

modules/commands/os_session.cpp

@@ -639,7 +639,10 @@ class OSSession : public Module
 		exception_type("Exception", Exception::Unserialize), ss(this), commandossession(this), commandosexception(this), akills("XLineManager", "xlinemanager/sgline")
 	{
 		this->SetPermanent(true);
+	}
 
+	void Prioritize() anope_override
+	{
 		ModuleManager::SetPriority(this, PRIORITY_FIRST);
 	}
 

modules/extra/m_ldap_authentication.cpp

@@ -220,7 +220,10 @@ class NSIdentifyLDAP : public Module
 	{
 
 		me = this;
+	}
 
+	void Prioritize() anope_override
+	{
 		ModuleManager::SetPriority(this, PRIORITY_FIRST);
 	}
 

modules/protocol/unreal.cpp

@@ -1258,7 +1258,10 @@ class ProtoUnreal : public Module
 	{
 
 		this->AddModes();
+	}
 
+	void Prioritize() anope_override
+	{
 		ModuleManager::SetPriority(this, PRIORITY_FIRST);
 	}
 

src/module.cpp

@@ -101,6 +101,10 @@ void Module::SetAuthor(const Anope::string &nauthor)
 	this->author = nauthor;
 }
 
+void Module::Prioritize()
+{
+}
+
 ModuleVersion::ModuleVersion(int maj, int min, int pa) : version_major(maj), version_minor(min), version_patch(pa)
 {
 }

src/modulemanager.cpp

@@ -265,6 +265,8 @@ ModuleReturn ModuleManager::LoadModule(const Anope::string &modname, User *u)
 	for (unsigned i = 0; i < I_SIZE; ++i)
 		EventHandlers[i].push_back(m);
 
+	m->Prioritize();
+
 	FOREACH_MOD(OnModuleLoad, (u, m));
 
 	return MOD_ERR_OK;