/**
* @brief redirect_to_splashpage
* @param connection
* @param client
* @param host
* @param url
* @return
*/
static int redirect_to_splashpage(struct MHD_Connection *connection, t_client *client, const char *host, const char *url)
{
char *originurl = NULL;
char *query = "";
get_query(connection, &query);
safe_asprintf(&originurl, "http://%s%s%s%s", host, url, strlen(query) ? "?" : "" , query);
return encode_and_redirect_to_splashpage(connection, originurl);
}
/**
* @brief preauthenticated - called for all request of a client in this state.
* @param connection
* @param ip_addr
* @param mac
* @return
*/
static int preauthenticated(struct MHD_Connection *connection,
const char *ip_addr,
const char *mac,
const char *url,
t_client *client)
{
char *host = NULL;
const char *redirect_url;
s_config *config = config_get_config();
if (!client) {
client = add_client(ip_addr);
if (!client)
return send_error(connection, 503);
}
MHD_get_connection_values(connection, MHD_HEADER_KIND, get_host_value_callback, &host);
/* check if this is a redirect querty with a foreign host as target */
if(is_foreign_hosts(connection, host)) {
return redirect_to_splashpage(connection, client, host, url);
}
/* request is directed to us */
/* check if client wants to be authenticated */
if(check_authdir_match(url, config->authdir)) {
/* Only the first request will redirected to config->redirectURL.
* When the client reloads a page when it's authenticated, it should be redirected
* to their origin url
*/
if (config->redirectURL)
redirect_url = config->redirectURL;
else
redirect_url = get_redirect_url(connection);
if (try_to_authenticate(connection, client, host, url)) {
return authenticate_client(connection, ip_addr, mac, redirect_url, client);
} else {
/* user used an invalid token, redirect to splashpage but hold query "redir" intact */
return encode_and_redirect_to_splashpage(connection, redirect_url);
}
}
if(is_splashpage(host, url)) {
return show_splashpage(connection, client);
}
/* no special handling left - try to serve static content to the user */
return serve_file(connection, client, url);
}
/**
* @brief redirect_to_splashpage
* @param connection
* @param client
* @param host
* @param url
* @return
*/
static int redirect_to_splashpage(struct MHD_Connection *connection, t_client *client, const char *host, const char *url)
{
char *originurl = NULL;
char *query = NULL;
int ret = 0;
get_query(connection, &query);
if (!query) {
/* no mem */
return send_error(connection, 503);
}
safe_asprintf(&originurl, "http://%s%s%s%s", host, url, strlen(query) ? "?" : "" , query);
ret = encode_and_redirect_to_splashpage(connection, originurl);
free(originurl);
free(query);
return ret;
}
