Remove the asynchronous identifing hack and replace it with something better. Fixes m_*_authentication only being able to properly work when people identify normally using nickserv/identify

include/account.h

@@ -304,7 +304,39 @@ class CoreExport NickCore : public Extensible, public Flags<NickCoreFlag, NI_END
 	 * Deletes all the memory allocated in the certificate list vector and then clears the vector.
 	 */
 	void ClearCert();
+};
 
+class IdentifyRequest
+{
+	Anope::string account;
+	Anope::string password;
+
+	std::set<Module *> holds;
+	bool dispatched;
+	bool success;
+	
+	static std::set<IdentifyRequest *> requests;
+
+ protected:
+	IdentifyRequest(const Anope::string &acc, const Anope::string &pass);
+	virtual ~IdentifyRequest();
+
+ public:
+	virtual void OnSuccess() = 0;
+	virtual void OnFail() = 0;
+
+	const Anope::string &GetAccount() const { return account; }
+	const Anope::string &GetPassword() const { return password; }
+
+	/* Hold this request. Once held it must be Release()d later on */
+	void Hold(Module *m);
+	void Release(Module *m);
+
+	void Success(Module *m);
+
+	void Dispatch();
+
+	static void ModuleUnload(Module *m);
 };
 
 extern CoreExport void change_core_display(NickCore *nc);

include/defs.h

@@ -26,6 +26,7 @@ class ConnectionSocket;
 class DNSPacket;
 class dynamic_reference_base;
 class Entry;
+class IdentifyRequest;
 class InfoFormatter;
 class ListenSocket;
 class Log;

include/modules.h

@@ -765,15 +765,11 @@ class CoreExport Module : public Extensible
 	 */
 	virtual void OnNickInfo(CommandSource &source, NickAlias *na, InfoFormatter &info, bool ShowHidden) { }
 
-	/** Check whether a users password is correct.
-	 * @param u The user
-	 * @param command The command the user is doing
-	 * @param params Command params
-	 * @param account The account the password should be checked against
-	 * @param password The password
-	 * @return EVENT_ALLOW to allow the password, EVENT_STOP to stop processing completely
+	/** Check whether a username and password is correct
+	 * @param u The user trying to identify, if applicable.
+	 * @param req The login request
 	 */
-	virtual EventReturn OnCheckAuthentication(Command *c, CommandSource *source, const std::vector<Anope::string> &params, const Anope::string &account, const Anope::string &password) { return EVENT_CONTINUE; }
+	virtual void OnCheckAuthentication(User *u, IdentifyRequest *req) { }
 
 	/** Called when a user does /ns update
 	 * @param u The user