void free_regex(Regex regex)
{
Regex temp = regex;
while (*temp != NULL) {
if((*temp)->type == parenthesis)
{
free_regex((*temp)->optionA);
free_regex((*temp)->optionB);
}
free(*temp);
temp++;
}
free(regex);
}
void
filter_dispose(filter_t *filter)
{
free(filter->raw);
filter->raw = NULL;
free_regex(filter);
}
void phishing_done(struct cl_engine* engine)
{
struct phishcheck* pchk = engine->phishcheck;
cli_dbgmsg("Cleaning up phishcheck\n");
if(pchk && !pchk->is_disabled) {
free_regex(&pchk->preg_numeric);
}
whitelist_done(engine);
domainlist_done(engine);
if(pchk) {
cli_dbgmsg("Freeing phishcheck struct\n");
mpool_free(engine->mempool, pchk);
}
cli_dbgmsg("Phishcheck cleaned up\n");
}
void phishing_done(struct cl_engine* engine)
{
struct phishcheck* pchk = engine->phishcheck;
cli_dbgmsg("Cleaning up phishcheck\n");
if(pchk && !pchk->is_disabled) {
free_regex(&pchk->preg);
free_regex(&pchk->preg_hexurl);
free_regex(&pchk->preg_cctld);
free_regex(&pchk->preg_tld);
free_regex(&pchk->preg_numeric);
free_regex(&pchk->preg_realurl);
pchk->is_disabled = 1;
}
whitelist_done(engine);
domainlist_done(engine);
if(pchk) {
cli_dbgmsg("Freeing phishcheck struct\n");
free(pchk);
engine->phishcheck = NULL;
}
cli_dbgmsg("Phishcheck cleaned up\n");
}
void
filter_clear(filter_t *filter)
{
filter->raw[0] = '\0';
free_regex(filter);
}
/* Replaces possibly existing regular expression with the new one. */
static void
reset_regex(filter_t *filter, const char value[])
{
free_regex(filter);
compile_regex(filter, value);
}
int phishing_init(struct cl_engine* engine)
{
char *url_regex, *realurl_regex;
struct phishcheck* pchk;
if(!engine->phishcheck) {
pchk = engine->phishcheck = cli_malloc(sizeof(struct phishcheck));
if(!pchk)
return CL_EMEM;
pchk->is_disabled = 1;
}
else {
pchk = engine->phishcheck;
if(!pchk)
return CL_ENULLARG;
if(!pchk->is_disabled) {
/* already initialized */
return CL_SUCCESS;
}
}
cli_dbgmsg("Initializing phishcheck module\n");
if(build_regex(&pchk->preg_hexurl,cloaked_host_regex,1)) {
free(pchk);
engine->phishcheck = NULL;
return CL_EFORMAT;
}
if(build_regex(&pchk->preg_cctld,cctld_regex,1)) {
free(pchk);
engine->phishcheck = NULL;
return CL_EFORMAT;
}
if(build_regex(&pchk->preg_tld,tld_regex,1)) {
free_regex(&pchk->preg_cctld);
free(pchk);
engine->phishcheck = NULL;
return CL_EFORMAT;
}
url_regex = str_compose("^ *(("URI_CHECK_PROTOCOLS")|("URI_fragmentaddress1,URI_fragmentaddress2,URI_fragmentaddress3")) *$");
if(build_regex(&pchk->preg,url_regex,1)) {
free_regex(&pchk->preg_cctld);
free_regex(&pchk->preg_tld);
free(url_regex);
free(pchk);
engine->phishcheck = NULL;
return CL_EFORMAT;
}
free(url_regex);
realurl_regex = str_compose("^ *(("URI_CHECK_PROTOCOLS")|("URI_path1,URI_fragmentaddress2,URI_fragmentaddress3")) *$");
if(build_regex(&pchk->preg_realurl, realurl_regex,1)) {
free_regex(&pchk->preg_cctld);
free_regex(&pchk->preg_tld);
free_regex(&pchk->preg);
free(url_regex);
free(realurl_regex);
free(pchk);
engine->phishcheck = NULL;
return CL_EFORMAT;
}
free(realurl_regex);
if(build_regex(&pchk->preg_numeric,numeric_url_regex,1)) {
free_regex(&pchk->preg_cctld);
free_regex(&pchk->preg_tld);
free_regex(&pchk->preg);
free_regex(&pchk->preg_realurl);
free(pchk);
engine->phishcheck = NULL;
return CL_EFORMAT;
}
pchk->is_disabled = 0;
cli_dbgmsg("Phishcheck module initialized\n");
return CL_SUCCESS;
}
