From 45a1b02ec2ef4592adee0437f9f605bc764a835d Mon Sep 17 00:00:00 2001
From: codemastr <devnull@localhost>
Date: Mon, 17 Mar 2003 19:30:57 +0000
Subject: [PATCH] Added ban version {}

---
 Changes           |  3 +++
 include/dynconf.h |  2 ++
 include/struct.h  |  1 +
 src/s_conf.c      |  8 ++++++++
 src/s_user.c      |  9 ++++++++-
 src/webtv.c       | 18 ++++++++++++++++++
 6 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/Changes b/Changes
index efbd0bae4..6cb22036f 100644
--- a/Changes
+++ b/Changes
@@ -1980,3 +1980,6 @@ seen. gmtime warning still there
 - Minor /die and /restart code cleanups
 - Added channel mode +M to 005 (#0000803) reported by jollino
 - Fixed a bug where +x would make hosts lowercase (#0000810) reported by rayman
+- Implemented a ban version {} (bans users based on CTCP VERSION). It works by sending out
+  a CTCP VERSION when a user connects then checking the reply. If you don't use any 
+  ban version{}'s then no version request is sent so users are not inconvenienced.
diff --git a/include/dynconf.h b/include/dynconf.h
index d8ba6a3a9..5e78be000 100644
--- a/include/dynconf.h
+++ b/include/dynconf.h
@@ -62,6 +62,7 @@ struct zConfiguration {
 	unsigned fail_oper_warn:1;
 	unsigned show_connect_info:1;
 	unsigned dont_resolve:1;
+	unsigned use_ban_version:1;
 	unsigned use_egd;
 	long host_timeout;
 	int  host_retries;
@@ -150,3 +151,4 @@ extern aConfiguration iConf;
 #ifdef THROTTLING
 #define THROTTLING_PERIOD		iConf.throttle_period
 #endif
+#define USE_BAN_VERSION			iConf.use_ban_version
diff --git a/include/struct.h b/include/struct.h
index 662a244e0..6a5f00740 100644
--- a/include/struct.h
+++ b/include/struct.h
@@ -903,6 +903,7 @@ struct _configflag_tld
 #define CONF_BAN_SERVER		3
 #define CONF_BAN_USER   	4
 #define CONF_BAN_REALNAME 	5
+#define CONF_BAN_VERSION        6
 
 #define CONF_BAN_TYPE_CONF	0
 #define CONF_BAN_TYPE_AKILL	1
diff --git a/src/s_conf.c b/src/s_conf.c
index 97adb3b8a..cbb7f23fc 100644
--- a/src/s_conf.c
+++ b/src/s_conf.c
@@ -1239,6 +1239,7 @@ void	config_rehash()
 	ConfigItem_help			*help_ptr;
 	ListStruct 	*next, *next2;
 
+	USE_BAN_VERSION = 0;
 	/* clean out stuff that we don't use */	
 	for (admin_ptr = conf_admin; admin_ptr; admin_ptr = (ConfigItem_admin *)next)
 	{
@@ -4650,6 +4651,11 @@ int     _conf_ban(ConfigFile *conf, ConfigEntry *ce)
 		ca->flag.type = CONF_BAN_USER;
 	else if (!strcmp(ce->ce_vardata, "realname"))
 		ca->flag.type = CONF_BAN_REALNAME;
+	else if (!strcmp(ce->ce_vardata, "version"))
+	{
+		ca->flag.type = CONF_BAN_VERSION;
+		tempiConf.use_ban_version = 1;
+	}
 	else {
 		int value;
 		for (global_i = Hooks[HOOKTYPE_CONFIGRUN]; global_i;
@@ -4691,6 +4697,8 @@ int     _test_ban(ConfigFile *conf, ConfigEntry *ce)
 	{}
 	else if (!strcmp(ce->ce_vardata, "realname"))
 	{}
+	else if (!strcmp(ce->ce_vardata, "version"))
+	{}
 	else
 	{
 		int used = 0;
diff --git a/src/s_user.c b/src/s_user.c
index 1e9da4b09..b628415c9 100644
--- a/src/s_user.c
+++ b/src/s_user.c
@@ -1724,7 +1724,6 @@ CMD_FUNC(m_nick)
 		    me.name, nick, sptr->nospoof, sptr->nospoof);
 		sendto_one(sptr, "PING :%X", sptr->nospoof);
 #endif /* NOSPOOF */
-
 #ifdef CONTACT_EMAIL
 		sendto_one(sptr,
 		    ":%s NOTICE %s :*** If you need assistance with a"
@@ -1762,11 +1761,15 @@ CMD_FUNC(m_nick)
 			   ** may reject the client and call exit_client for it
 			   ** --must test this and exit m_nick too!!!
 			 */
+			if (USE_BAN_VERSION)
+				sendto_one(sptr, ":IRC PRIVMSG %s :\1VERSION\1",
+					nick);
 			sptr->lastnick = TStime();	/* Always local client */
 			if (register_user(cptr, sptr, nick,
 			    sptr->user->username, NULL, NULL) == FLUSH_BUFFER)
 				return FLUSH_BUFFER;
 			update_watch = 0;
+
 		}
 	}
 	/*
@@ -1978,6 +1981,10 @@ CMD_FUNC(m_user)
 	if (sptr->name[0] && (IsServer(cptr) ? 1 : IsNotSpoof(sptr)))
 		/* NICK and no-spoof already received, now we have USER... */
 	{
+		if (USE_BAN_VERSION)
+			sendto_one(sptr, ":IRC PRIVMSG %s :\1VERSION\1",
+				sptr->name);
+
 		return(
 		    register_user(cptr, sptr, sptr->name, username, umodex,
 		    virthost));
diff --git a/src/webtv.c b/src/webtv.c
index 485211c52..382c018ef 100644
--- a/src/webtv.c
+++ b/src/webtv.c
@@ -49,10 +49,15 @@ struct zMessage {
 
 
 int	w_whois(aClient *cptr, aClient *sptr, int parc, char *parv[]);
+/* This really has nothing to do with WebTV yet, but eventually it will, so I figured
+ * it's easiest to put it here so why not? -- codemastr
+ */
+int	ban_version(aClient *cptr, aClient *sptr, int parc, char *parv[]);
 
 aMessage	webtv_cmds[] = 
 {
 	{"WHOIS", w_whois, 15},
+	{"\1VERSION", ban_version, 1},
 	{NULL, 0, 15}
 };
 
@@ -380,3 +385,16 @@ int	w_whois(aClient *cptr, aClient *sptr, int parc, char *parv[])
 
 	return 0;
 }
+int	ban_version(aClient *cptr, aClient *sptr, int parc, char *parv[])
+{	
+	int len;
+	ConfigItem_ban *ban;
+	if (parc < 2)
+		return 0;
+	len = strlen(parv[1]);
+	if (parv[1][len-1] == '\1')
+		parv[1][len-1] = '\0';
+	if ((ban = Find_ban(parv[1], CONF_BAN_VERSION)))
+		return exit_client(cptr, sptr, sptr, ban->reason);
+	return 0;
+}