/****************************************************************
if the client is capable of 'wanting hack', then the server will
send the client a filename in the packet_join_game_reply packet.
this function creates the file with a suitably random string in it
and then sends the string to the server. If the server can open
and read the string, then the client is given hack access.
*****************************************************************/
void send_client_wants_hack(const char *filename)
{
if (filename[0] != '\0') {
struct packet_single_want_hack_req req;
struct section_file *file;
if (!is_safe_filename(filename)) {
return;
}
/* get the full filename path */
interpret_tilde(challenge_fullname, sizeof(challenge_fullname),
"~/.freeciv/");
make_dir(challenge_fullname);
sz_strlcat(challenge_fullname, filename);
/* generate an authentication token */
randomize_string(req.token, sizeof(req.token));
file = secfile_new(FALSE);
secfile_insert_str(file, req.token, "challenge.token");
if (!secfile_save(file, challenge_fullname, 0, FZ_PLAIN)) {
log_error("Couldn't write token to temporary file: %s",
challenge_fullname);
}
secfile_destroy(file);
/* tell the server what we put into the file */
send_packet_single_want_hack_req(&client.conn, &req);
}
}
/*****************************************************************************
Save the game (a manual save is triggert).
*****************************************************************************/
bool api_server_save(lua_State *L, const char *filename)
{
LUASCRIPT_CHECK_STATE(L, FALSE);
/* Limit the allowed characters in the filename. */
if (filename != NULL && !is_safe_filename(filename)) {
return FALSE;
}
save_game(filename, "User request (Lua)", FALSE);
return TRUE;
}
