Server: announce MIN/MAX protocol version supported to serverlist. Client: check serverlist

Client now informs about incompatible servers from the list, this permits to prevent the protocol movements.
Server announces its supported protocol versions to master server
This commit is contained in:
est31 2015-02-17 01:37:14 +01:00 committed by Loic Blot
parent 9ef2e5000f
commit 82bfa2ee7b
8 changed files with 129 additions and 12 deletions

@ -564,7 +564,7 @@ if INIT == "mainmenu" then
return nil
end
function fgettext(text, ...)
function fgettext_ne(text, ...)
text = core.gettext(text)
local arg = {n=select('#', ...), ...}
if arg.n >= 1 then
@ -586,7 +586,11 @@ if INIT == "mainmenu" then
end
text = result
end
return core.formspec_escape(text)
return text
end
function fgettext(text, ...)
return core.formspec_escape(fgettext_ne(text, ...))
end
end

@ -16,9 +16,15 @@
--51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
--------------------------------------------------------------------------------
-- Global menu data
---------------------------------------------------------------------------------
--------------------------------------------------------------------------------
menudata = {}
--------------------------------------------------------------------------------
-- Local cached values
--------------------------------------------------------------------------------
local min_supp_proto = core.get_min_supp_proto()
local max_supp_proto = core.get_max_supp_proto()
--------------------------------------------------------------------------------
-- Menu helper functions
--------------------------------------------------------------------------------
@ -42,6 +48,25 @@ function image_column(tooltip, flagname)
"1=" .. core.formspec_escape(defaulttexturedir .. "server_flags_" .. flagname .. ".png")
end
--------------------------------------------------------------------------------
function order_favorite_list(list)
local res = {}
--orders the favorite list after support
for i=1,#list,1 do
local fav = list[i]
if is_server_protocol_compat(fav.proto_min, fav.proto_max) then
table.insert(res, fav)
end
end
for i=1,#list,1 do
local fav = list[i]
if not is_server_protocol_compat(fav.proto_min, fav.proto_max) then
table.insert(res, fav)
end
end
return res
end
--------------------------------------------------------------------------------
function render_favorite(spec,render_details)
local text = ""
@ -68,6 +93,7 @@ function render_favorite(spec,render_details)
end
local details = ""
local grey_out = not is_server_protocol_compat(spec.proto_max, spec.proto_min)
if spec.clients ~= nil and spec.clients_max ~= nil then
local clients_color = ''
@ -87,11 +113,17 @@ function render_favorite(spec,render_details)
clients_color = '#ffba97' -- 90-100%: orange
end
if grey_out then
clients_color = '#aaaaaa'
end
details = details ..
clients_color .. ',' ..
render_client_count(spec.clients) .. ',' ..
'/,' ..
render_client_count(spec.clients_max) .. ','
elseif grey_out then
details = details .. '#aaaaaa,?,/,?,'
else
details = details .. ',?,/,?,'
end
@ -114,7 +146,7 @@ function render_favorite(spec,render_details)
details = details .. "0,"
end
return details .. text
return details .. (grey_out and '#aaaaaa,' or ',') .. text
end
--------------------------------------------------------------------------------
@ -195,7 +227,7 @@ function asyncOnlineFavourites()
nil,
function(result)
if core.setting_getbool("public_serverlist") then
menudata.favorites = result
menudata.favorites = order_favorite_list(result)
core.event_handler("Refresh")
end
end
@ -225,3 +257,21 @@ function text2textlist(xpos,ypos,width,height,tl_name,textlen,text,transparency)
return retval
end
--------------------------------------------------------------------------------
function is_server_protocol_compat(proto_min, proto_max)
return not ((min_supp_proto > (proto_max or 24)) or (max_supp_proto < (proto_min or 13)))
end
--------------------------------------------------------------------------------
function is_server_protocol_compat_or_error(proto_min, proto_max)
if not is_server_protocol_compat(proto_min, proto_max) then
gamedata.errormessage = fgettext_ne("Protocol version mismatch, server " ..
((proto_min ~= proto_max) and "supports protocols between $1 and $2" or "enforces protocol version $1") ..
", we " ..
((min_supp_proto ~= max_supp_proto) and "support protocols between version $3 and $4." or "only support protocol version $3"),
proto_min or 13, proto_max or 24, min_supp_proto, max_supp_proto)
return false
end
return true
end

@ -62,6 +62,7 @@ local function get_formspec(tabview, name, tabdata)
image_column(fgettext("Creative mode"), "creative") .. ",padding=1;" ..
image_column(fgettext("Damage enabled"), "damage") .. ",padding=0.25;" ..
image_column(fgettext("PvP enabled"), "pvp") .. ",padding=0.25;" ..
"color,span=1;" ..
"text,padding=1]" -- name
else
retval = retval .. "tablecolumns[text]"
@ -88,7 +89,6 @@ end
--------------------------------------------------------------------------------
local function main_button_handler(tabview, fields, name, tabdata)
if fields["te_name"] ~= nil then
gamedata.playername = fields["te_name"]
core.setting_set("name", fields["te_name"])
@ -98,6 +98,10 @@ local function main_button_handler(tabview, fields, name, tabdata)
local event = core.explode_table_event(fields["favourites"])
if event.type == "DCL" then
if event.row <= #menudata.favorites then
if not is_server_protocol_compat_or_error(menudata.favorites[event.row].proto_min,
menudata.favorites[event.row].proto_max) then
return true
end
gamedata.address = menudata.favorites[event.row].address
gamedata.port = menudata.favorites[event.row].port
gamedata.playername = fields["te_name"]
@ -189,7 +193,7 @@ local function main_button_handler(tabview, fields, name, tabdata)
local current_favourite = core.get_table_index("favourites")
if current_favourite == nil then return end
core.delete_favorite(current_favourite)
menudata.favorites = core.get_favorites()
menudata.favorites = order_favorite_list(core.get_favorites())
tabdata.fav_selected = nil
core.setting_set("address","")
@ -214,6 +218,11 @@ local function main_button_handler(tabview, fields, name, tabdata)
gamedata.servername = menudata.favorites[fav_idx].name
gamedata.serverdescription = menudata.favorites[fav_idx].description
if not is_server_protocol_compat_or_error(menudata.favorites[fav_idx].proto_min,
menudata.favorites[fav_idx].proto_max)then
return true
end
else
gamedata.servername = ""
gamedata.serverdescription = ""

@ -45,6 +45,7 @@ local function get_formspec(tabview, name, tabdata)
image_column(fgettext("Creative mode"), "creative") .. ",padding=1;" ..
image_column(fgettext("Damage enabled"), "damage") .. ",padding=0.25;" ..
image_column(fgettext("PvP enabled"), "pvp") .. ",padding=0.25;" ..
"color,span=1;" ..
"text,padding=1]" -- name
else
retval = retval .. "tablecolumns[text]"
@ -87,7 +88,6 @@ local function get_formspec(tabview, name, tabdata)
end
--------------------------------------------------------------------------------
local function main_button_handler(tabview, fields, name, tabdata)
if fields["btn_start_singleplayer"] then
@ -159,6 +159,11 @@ local function main_button_handler(tabview, fields, name, tabdata)
gamedata.servername = menudata.favorites[fav_idx].name
gamedata.serverdescription = menudata.favorites[fav_idx].description
if not is_server_protocol_compat_or_error(menudata.favorites[fav_idx].proto_min,
menudata.favorites[fav_idx].proto_max) then
return true
end
else
gamedata.servername = ""
gamedata.serverdescription = ""

@ -197,9 +197,11 @@ core.delete_world(index)
Helpers:
core.gettext(string) -> string
^ look up the translation of a string in the gettext message catalog
fgettext(string, ...) -> string
fgettext_ne(string, ...)
^ call core.gettext(string), replace "$1"..."$9" with the given
^ extra arguments, call core.formspec_escape and return the result
^ extra arguments and return the result
fgettext(string, ...) -> string
^ same as fgettext_ne(), but calls core.formspec_escape before returning result
core.parse_json(string[, nullvalue]) -> something (possible in async calls)
^ see core.parse_json (lua_api.txt)
dump(obj, dumped={})
@ -211,6 +213,12 @@ string:trim()
core.is_yes(arg) (possible in async calls)
^ returns whether arg can be interpreted as yes
Version compat:
core.get_min_supp_proto()
^ returns the minimum supported network protocol version
core.get_max_supp_proto()
^ returns the maximum supported network protocol version
Async:
core.handle_async(async_job,parameters,finished)
^ execute a function asynchronously

@ -472,6 +472,7 @@ int ModApiMainMenu::l_get_favorites(lua_State *L)
for (unsigned int i = 0; i < servers.size(); i++)
{
lua_pushnumber(L,index);
lua_newtable(L);
@ -509,6 +510,18 @@ int ModApiMainMenu::l_get_favorites(lua_State *L)
lua_settable(L, top_lvl2);
}
if (servers[i]["proto_min"].asString().size()) {
lua_pushstring(L,"proto_min");
lua_pushinteger(L,servers[i]["proto_min"].asInt());
lua_settable(L, top_lvl2);
}
if (servers[i]["proto_max"].asString().size()) {
lua_pushstring(L,"proto_max");
lua_pushinteger(L,servers[i]["proto_max"].asInt());
lua_settable(L, top_lvl2);
}
if (servers[i]["password"].asString().size()) {
lua_pushstring(L,"password");
lua_pushboolean(L,servers[i]["password"].asBool());
@ -1082,6 +1095,19 @@ int ModApiMainMenu::l_get_screen_info(lua_State *L)
return 1;
}
/******************************************************************************/
int ModApiMainMenu::l_get_min_supp_proto(lua_State *L)
{
lua_pushinteger(L, CLIENT_PROTOCOL_VERSION_MIN);
return 1;
}
int ModApiMainMenu::l_get_max_supp_proto(lua_State *L)
{
lua_pushinteger(L, CLIENT_PROTOCOL_VERSION_MAX);
return 1;
}
/******************************************************************************/
int ModApiMainMenu::l_do_async_callback(lua_State *L)
{
@ -1142,6 +1168,8 @@ void ModApiMainMenu::Initialize(lua_State *L, int top)
API_FCT(gettext);
API_FCT(get_video_drivers);
API_FCT(get_screen_info);
API_FCT(get_min_supp_proto);
API_FCT(get_max_supp_proto);
API_FCT(do_async_callback);
}

@ -137,6 +137,12 @@ private:
static int l_get_video_drivers(lua_State *L);
//version compatibility
static int l_get_min_supp_proto(lua_State *L);
static int l_get_max_supp_proto(lua_State *L);
// async
static int l_do_async_callback(lua_State *L);

@ -28,6 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "filesys.h"
#include "porting.h"
#include "log.h"
#include "network/networkprotocol.h"
#include "json/json.h"
#include "convert_json.h"
#include "httpfetch.h"
@ -67,8 +68,11 @@ std::vector<ServerListSpec> getLocal()
std::vector<ServerListSpec> getOnline()
{
Json::Value root = fetchJsonValue(
(g_settings->get("serverlist_url") + "/list").c_str(), NULL);
std::ostringstream geturl;
geturl << g_settings->get("serverlist_url") <<
"/list?proto_version_min=" << CLIENT_PROTOCOL_VERSION_MIN <<
"&proto_version_max=" << CLIENT_PROTOCOL_VERSION_MAX;
Json::Value root = fetchJsonValue(geturl.str(), NULL);
std::vector<ServerListSpec> server_list;
@ -205,9 +209,12 @@ void sendAnnounce(const std::string &action,
server["address"] = g_settings->get("server_address");
}
if (action != "delete") {
bool strict_checking = g_settings->getBool("strict_protocol_version_checking");
server["name"] = g_settings->get("server_name");
server["description"] = g_settings->get("server_description");
server["version"] = minetest_version_simple;
server["proto_min"] = strict_checking ? LATEST_PROTOCOL_VERSION : SERVER_PROTOCOL_VERSION_MIN;
server["proto_max"] = strict_checking ? LATEST_PROTOCOL_VERSION : SERVER_PROTOCOL_VERSION_MAX;
server["url"] = g_settings->get("server_url");
server["creative"] = g_settings->getBool("creative_mode");
server["damage"] = g_settings->getBool("enable_damage");