emehta-contrib/ns_cleannick.c

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2012-04-17 20:09:50 +00:00
/*
* Copyright (c) 2011 William Pitcock <nenolod@dereferenced.org>
* Rights to this code are as documented in doc/LICENSE.
*
* Clean obnoxious nicknames, such as LaMENiCK -> lamenick.
*/
#include "atheme-compat.h"
2012-04-17 20:09:50 +00:00
DECLARE_MODULE_V1
(
"contrib/ns_cleannick", false, _modinit, _moddeinit,
PACKAGE_STRING,
"Atheme Development Group <http://www.atheme.org>"
);
#define LAMENESS_WEIGHT 0.35f
/*
* Determine if a nickname is lame. Non-alphabetical characters
* are penalized twice, uppercase characters are penalized once.
*/
static bool is_nickname_lame(const char *nickname)
{
const char *p;
unsigned int capcount = 0;
float score;
return_val_if_fail(nickname != NULL, false);
for (p = nickname; *p != '\0'; p++)
{
if (IsUpper(*p))
capcount++;
#ifdef NOTYET
if (!IsAlpha(*p))
capcount += 2;
#endif
}
score = (float) capcount / (float) strlen(nickname);
slog(LG_DEBUG, "is_nickname_lame(%s): score %0.3f %d/%zu caps", nickname, score, capcount, strlen(nickname));
if (score > LAMENESS_WEIGHT)
return true;
return false;
}
/*
* Sanitize a nickname and then change it to the sanitized version forcefully.
*/
static void clean_nickname(user_t *u)
{
char nickbuf[NICKLEN];
char *p;
return_if_fail(u != NULL);
mowgli_strlcpy(nickbuf, u->nick, NICKLEN);
p = nickbuf;
while (*p++)
{
if (IsUpper(*p))
*p = ToLower(*p);
}
if (is_nickname_lame(nickbuf))
{
slog(LG_DEBUG, "clean_nickname(%s): cleaned nickname %s is still lame", u->nick, nickbuf);
return;
}
notice(nicksvs.nick, u->nick, "Your nick has been changed to \2%s\2 per %s nickname quality guidelines.",
nickbuf, me.netname);
fnc_sts(nicksvs.me->me, u, nickbuf, FNC_FORCE);
}
static void user_state_changed(hook_user_nick_t *data)
{
return_if_fail(data != NULL);
return_if_fail(data->u != NULL);
if (!is_internal_client(data->u) && is_nickname_lame(data->u->nick))
{
#ifdef TAUNT_LAME_USERS
if (data->oldnick != NULL && !is_nickname_lame(data->oldnick))
notice(nicksvs.nick, data->u->nick, "\2%s\2 was much less lame, \2%s\2.",
data->oldnick, data->u->nick);
#endif
clean_nickname(data->u);
}
}
void _modinit(module_t *m)
{
hook_add_event("user_add");
hook_add_user_add(user_state_changed);
hook_add_event("user_nickchange");
hook_add_user_nickchange(user_state_changed);
}
void _moddeinit(module_unload_intent_t intent)
{
hook_del_user_add(user_state_changed);
hook_del_user_nickchange(user_state_changed);
}