First-revision m_securelist.cpp, prevents /LIST in the first minute of connection crippling most automated spambots and virus drones

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@3716 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 118 insertions, 0 deletions

diff --git a/src/modules/m_securelist.cpp b/src/modules/m_securelist.cpp
new file mode 100644
index 000000000..cedc3f522
--- /dev/null
+++ b/src/modules/m_securelist.cpp
@@ -0,0 +1,118 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
+ *		       E-mail:
+ *		<brain@chatspike.net>
+ *	   	  <Craig@chatspike.net>
+ *     
+ * Written by Craig Edwards, Craig McLure, and others.
+ * This program is free but copyrighted software; see
+ *	    the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+using namespace std;
+ 
+#include "users.h"
+#include "channels.h"
+#include "modules.h"
+#include "helperfuncs.h"
+#include "message.h"
+#include <vector>
+ 
+extern time_t TIME;
+
+/* $ModDesc: A module overriding /list, and making it safe - stop those sendq problems. */
+ 
+class ModuleSecureList : public Module
+{
+ private:
+	 Server *Srv;
+	 ListTimer* MyTimer;
+ public:
+	ModuleSecureList(Server* Me) : Module::Module(Me)
+	{
+		Srv = Me;
+
+		MyTimer = new ListTimer(1,Srv);
+		Srv->AddTimer(MyTimer);
+	}
+ 
+	virtual ~ModuleSecureList()
+	{
+	}
+ 
+	virtual Version GetVersion()
+	{
+		return Version(1,0,0,0,VF_VENDOR);
+	}
+ 
+	void Implements(char* List)
+	{
+		List[I_OnPreCommand] = List[I_On005Numeric] = 1;
+	}
+
+	/*
+	 * OnPreCommand()
+	 *   Intercept the LIST command.
+	 */ 
+	virtual int OnPreCommand(const std::string &command, char **parameters, int pcnt, userrec *user, bool validated)
+	{
+		/* If the command doesnt appear to be valid, we dont want to mess with it. */
+		if (!validated)
+			return 0;
+ 
+		if ((command == "LIST") && (TIME < (user->signon+60)) && (!*user->oper))
+		{
+			WriteServ(user->fd,"NOTICE %s :*** You cannot list within the first minute of connecting. Please try again later.",user->nick);
+			/* Some crap clients (read: mIRC, various java chat applets) muck up if they don't
+			 * receive these numerics whenever they send LIST, so give them an empty LIST to mull over.
+			 */
+			WriteServ(u->fd,"321 %s Channel :Users Name",user->nick);
+			WriteServ(u->fd,"323 %s :End of channel list.",user->nick);
+			return 1;
+		}
+		return 0;
+	}
+
+	virtual void On005Numeric(std::string &output)
+	{
+		output.append(" SECURELIST");
+	}
+
+	virtual Priority Prioritize()
+	{
+		return Srv->PriorityBefore("m_safelist.so");
+	}
+
+};
+ 
+ 
+ 
+/******************************************************************************************************/
+ 
+class ModuleSecureListFactory : public ModuleFactory
+{
+ public:
+	ModuleSecureListFactory()
+	{
+	}
+ 
+	~ModuleSecureListFactory()
+	{
+	}
+ 
+	virtual Module * CreateModule(Server* Me)
+	{
+		return new ModuleSecureList(Me);
+	}
+ 
+};
+ 
+extern "C" void * init_module( void )
+{
+	return new ModuleSecureListFactory;
+}