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extensions/filter: filter quit messages

This commit is contained in:
Ed Kellett 2020-05-23 19:10:31 +01:00
parent 260fc2cc34
commit 211c25b17d
No known key found for this signature in database
GPG Key ID: CB9986DEF342FABC
1 changed files with 31 additions and 2 deletions
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33
extensions/filter.c
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@ -55,6 +55,7 @@ static const char filter_desc[] = "Filter messages using a precompiled Hyperscan
static void filter_msg_user(void *data);
static void filter_msg_channel(void *data);
static void filter_client_quit(void *data);
static void on_client_exit(void *data);
static void mo_setfilter(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
@ -91,6 +92,7 @@ static unsigned filter_chmode, filter_umode;
mapi_hfn_list_av1 filter_hfnlist[] = {
{ "privmsg_user", (hookfn) filter_msg_user },
{ "privmsg_channel", (hookfn) filter_msg_channel },
{ "client_quit", (hookfn) filter_client_quit },
{ "client_exit", (hookfn) on_client_exit },
{ NULL, NULL }
};
@ -346,7 +348,7 @@ unsigned match_message(const char *prefix,
return 0;
if (!command)
return 0;
snprintf(check_buffer, sizeof check_buffer, "%s:%s!%s@%s#%c %s %s :%s",
snprintf(check_buffer, sizeof check_buffer, "%s:%s!%s@%s#%c %s%s%s :%s",
prefix,
#if FILTER_NICK
source->name,
@ -364,7 +366,10 @@ unsigned match_message(const char *prefix,
"*",
#endif
source->user && source->user->suser[0] != '\0' ? '1' : '0',
command, target, msg);
command,
target ? " " : "",
target ? target : "",
msg);
hs_error_t r = hs_scan(filter_db, check_buffer, strlen(check_buffer), 0, filter_scratch, match_callback, &state);
if (r != HS_SUCCESS && r != HS_SCAN_TERMINATED)
return 0;
@ -454,6 +459,30 @@ filter_msg_channel(void *data_)
}
}
void
filter_client_quit(void *data_)
{
hook_data_client_quit *data = data_;
struct Client *s = data->client;
if (IsOper(s)) {
return;
}
char *text = strcpy(clean_buffer, data->orig_reason);
strip_colour(text);
strip_unprintable(text);
unsigned r = match_message("0", s, "QUIT", NULL, data->orig_reason) |
match_message("1", s, "QUIT", NULL, text);
if (r & ACT_DROP) {
data->reason = NULL;
}
if (r & ACT_ALARM) {
sendto_realops_snomask(SNO_GENERAL, L_ALL | L_NETWIDE,
"FILTER: %s!%s@%s [%s]",
s->name, s->username, s->host, s->sockhost);
}
/* No point in doing anything with ACT_KILL */
}
void
on_client_exit(void *data_)
{