static apr_status_t rpaf_cleanup(void *data) {
rpaf_cleanup_rec *rcr = (rpaf_cleanup_rec *)data;
rcr->r->connection->remote_ip = (char *)rcr->old_ip;
rcr->r->connection->remote_addr->sa.sin.sin_addr.s_addr = apr_inet_addr(rcr->r->connection->remote_ip);
rcr->r->connection->remote_addr->sa.sin.sin_family = rcr->old_family;
return APR_SUCCESS;
}
static int change_remote_ip(request_rec *r) {
const char *fwdvalue;
char *val;
rpaf_server_cfg *cfg = (rpaf_server_cfg *)ap_get_module_config(r->server->module_config,
&rpaf_module);
if (!cfg->enable)
return DECLINED;
if (cfg->remote_addr_env) {
apr_table_set(r->subprocess_env, cfg->remote_addr_env, r->connection->remote_ip);
}
if (is_in_array(r->connection->remote_ip, cfg->proxy_ips) == 1) {
/* check if cfg->headername is set and if it is use
that instead of X-Forwarded-For by default */
if (cfg->headername && (fwdvalue = apr_table_get(r->headers_in, cfg->headername))) {
//
} else if ((fwdvalue = apr_table_get(r->headers_in, "X-Forwarded-For"))) {
//
} else {
return DECLINED;
}
if (fwdvalue) {
rpaf_cleanup_rec *rcr = (rpaf_cleanup_rec *)apr_pcalloc(r->pool, sizeof(rpaf_cleanup_rec));
apr_array_header_t *arr = apr_array_make(r->pool, 0, sizeof(char*));
while (*fwdvalue && (val = ap_get_token(r->pool, &fwdvalue, 1))) {
*(char **)apr_array_push(arr) = apr_pstrdup(r->pool, val);
if (*fwdvalue != '\0')
++fwdvalue;
}
rcr->old_ip = r->connection->remote_ip;
rcr->old_family = r->connection->remote_addr->sa.sin.sin_family;
rcr->r = r;
apr_pool_cleanup_register(r->pool, (void *)rcr, rpaf_cleanup, apr_pool_cleanup_null);
r->connection->remote_ip = apr_pstrdup(r->pool, extract_ip(arr, cfg->proxy_ips, cfg->recursive));
r->connection->remote_addr->sa.sin.sin_addr.s_addr = apr_inet_addr(r->connection->remote_ip);
r->connection->remote_addr->sa.sin.sin_family = AF_INET;
if (cfg->sethostname) {
const char *hostvalue;
if ((hostvalue = apr_table_get(r->headers_in, "X-Forwarded-Host"))) {
/* 2.0 proxy frontend or 1.3 => 1.3.25 proxy frontend */
apr_table_set(r->headers_in, "Host", apr_pstrdup(r->pool, hostvalue));
r->hostname = apr_pstrdup(r->pool, hostvalue);
ap_update_vhost_from_headers(r);
} else if ((hostvalue = apr_table_get(r->headers_in, "X-Host"))) {
/* 1.3 proxy frontend with mod_proxy_add_forward */
apr_table_set(r->headers_in, "Host", apr_pstrdup(r->pool, hostvalue));
r->hostname = apr_pstrdup(r->pool, hostvalue);
ap_update_vhost_from_headers(r);
}
}
}
}
return DECLINED;
}
static apr_status_t rpaf_cleanup(void *data) {
rpaf_cleanup_rec *rcr = (rpaf_cleanup_rec *)data;
rcr->r->connection->remote_ip = apr_pstrdup(rcr->r->connection->pool, rcr->old_ip);
rcr->r->connection->remote_addr->sa.sin.sin_addr.s_addr = apr_inet_addr(rcr->r->connection->remote_ip);
return APR_SUCCESS;
}
