emehta-contrib/os_akillnicklist.c

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2012-04-17 20:09:50 +00:00
/*
* Copyright (c) 2010 William Pitcock, et al.
* The rights to this code are as documented under doc/LICENSE.
*
* Automatically AKILL a list of clients, given their operating parameters.
*
* Basically this builds a keyword patricia. O(NICKLEN) lookups at the price
* of a longer startup process.
*
* Configuration.
* ==============
*
* This module adds a new block to the config file:
*
* nicklists {
* all = "/home/nenolod/atheme-production.hg4576/etc/nicklists/azn.txt";
* nick = "/home/nenolod/atheme-production.hg4576/etc/nicklists/bottler-nicks.txt";
* user = "/home/nenolod/atheme-production.hg4576/etc/nicklists/bottler-users.txt";
* real = "/home/nenolod/atheme-production.hg4576/etc/nicklists/bottler-gecos.txt";
* };
*
* You can add multiple all, nick, user and real entries. The entries will be merged.
* I would also like to say: fuck you GNAA, you guys need to go play in fucking traffic.
* Thanks for reading my crappy docs, and have a nice day.
*/
#include "atheme-compat.h"
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DECLARE_MODULE_V1
(
"contrib/os_akillnicklist", false, _modinit, _moddeinit,
"0.1",
"Atheme Development Group <http://www.atheme.org>"
);
static mowgli_patricia_t *akillalllist = NULL;
static mowgli_patricia_t *akillnicklist = NULL;
static mowgli_patricia_t *akilluserlist = NULL;
static mowgli_patricia_t *akillreallist = NULL;
static mowgli_list_t conft = { NULL, NULL, 0 };
static void
add_contents_of_file_to_list(const char *filename, mowgli_patricia_t *list)
{
char value[BUFSIZE];
FILE *f;
f = fopen(filename, "r");
if (!f)
return;
while (fgets(value, BUFSIZE, f) != NULL)
{
strip(value);
if (!*value)
continue;
mowgli_patricia_add(list, value, (void *) 0x1);
}
fclose(f);
}
static int
nicklist_config_handler_all(mowgli_config_file_entry_t *entry)
{
add_contents_of_file_to_list(entry->vardata, akillalllist);
return 0;
}
static int
nicklist_config_handler_nick(mowgli_config_file_entry_t *entry)
{
add_contents_of_file_to_list(entry->vardata, akillnicklist);
return 0;
}
static int
nicklist_config_handler_user(mowgli_config_file_entry_t *entry)
{
add_contents_of_file_to_list(entry->vardata, akilluserlist);
return 0;
}
static int
nicklist_config_handler_real(mowgli_config_file_entry_t *entry)
{
add_contents_of_file_to_list(entry->vardata, akillreallist);
return 0;
}
static void
aknl_nickhook(hook_user_nick_t *data)
{
user_t *u;
bool doit = false;
const char *username;
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return_if_fail(data != NULL);
if (!data->u)
return;
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u = data->u;
if (is_internal_client(u))
return;
if (is_autokline_exempt(u))
return;
username = u->user;
if (*username == '~')
username++;
if (mowgli_patricia_retrieve(akillalllist, u->nick) != NULL &&
mowgli_patricia_retrieve(akillalllist, username) != NULL &&
mowgli_patricia_retrieve(akillalllist, u->gecos) != NULL)
doit = true;
if (mowgli_patricia_retrieve(akillnicklist, u->nick) != NULL)
doit = true;
if (mowgli_patricia_retrieve(akilluserlist, username) != NULL)
doit = true;
if (mowgli_patricia_retrieve(akillreallist, u->gecos) != NULL)
doit = true;
if (!doit)
return;
slog(LG_INFO, "AKNL: k-lining \2%s\2!%s@%s [%s] due to appearing to be a possible spambot", u->nick, u->user, u->host, u->gecos);
kline_sts("*", "*", u->host, 86400, "Possible spambot");
}
void
_modinit(module_t *m)
{
add_subblock_top_conf("NICKLISTS", &conft);
add_conf_item("ALL", &conft, nicklist_config_handler_all);
add_conf_item("NICK", &conft, nicklist_config_handler_nick);
add_conf_item("USER", &conft, nicklist_config_handler_user);
add_conf_item("REAL", &conft, nicklist_config_handler_real);
akillalllist = mowgli_patricia_create(strcasecanon);
akillnicklist = mowgli_patricia_create(strcasecanon);
akilluserlist = mowgli_patricia_create(strcasecanon);
akillreallist = mowgli_patricia_create(strcasecanon);
hook_add_event("user_add");
hook_add_user_add(aknl_nickhook);
hook_add_event("user_nickchange");
hook_add_user_nickchange(aknl_nickhook);
}
void
_moddeinit(module_unload_intent_t intent)
{
hook_del_user_add(aknl_nickhook);
hook_del_user_nickchange(aknl_nickhook);
del_conf_item("ALL", &conft);
del_conf_item("NICK", &conft);
del_conf_item("USER", &conft);
del_conf_item("REAL", &conft);
del_top_conf("NICKLISTS");
}