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mirror of https://github.com/moparisthebest/minetest synced 2024-11-14 05:15:09 -05:00
minetest/builtin/mainmenu/common.lua
est31 af30183124 Add option to not send pre v25 init packet
The legacy init packet (pre v25) sends information about the client's
password that a server could use to log in to other servers if the
username and password are the same. All the other benefits of SRP of
protocol v25 are missed if the legacy init packet is still sent during
connection creation.

This patch adds an option to not send the v25 init packet. Not sending
the v25 packet means breaking compat with pre v25 servers, but as the
option is not enabled by default, no servers are affected unless the
user explicitly flips the switch. More than 90% of the servers on the
serverlist support post v25 protocols.

The patch also fixes a bug with greying out of non compliant servers
being done wrongly, the min and max params were mixed.
2016-03-15 17:20:09 +01:00

353 lines
10 KiB
Lua

--Minetest
--Copyright (C) 2014 sapier
--
--This program is free software; you can redistribute it and/or modify
--it under the terms of the GNU Lesser General Public License as published by
--the Free Software Foundation; either version 2.1 of the License, or
--(at your option) any later version.
--
--This program is distributed in the hope that it will be useful,
--but WITHOUT ANY WARRANTY; without even the implied warranty of
--MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
--GNU Lesser General Public License for more details.
--
--You should have received a copy of the GNU Lesser General Public License along
--with this program; if not, write to the Free Software Foundation, Inc.,
--51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
--------------------------------------------------------------------------------
-- Global menu data
--------------------------------------------------------------------------------
menudata = {}
--------------------------------------------------------------------------------
-- Local cached values
--------------------------------------------------------------------------------
local min_supp_proto
local max_supp_proto
function common_update_cached_supp_proto()
min_supp_proto = core.get_min_supp_proto()
max_supp_proto = core.get_max_supp_proto()
end
common_update_cached_supp_proto()
--------------------------------------------------------------------------------
-- Menu helper functions
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
local function render_client_count(n)
if n > 99 then
return '99+'
elseif n >= 0 then
return tostring(n)
else
return '?'
end
end
local function configure_selected_world_params(idx)
local worldconfig = modmgr.get_worldconfig(
menudata.worldlist:get_list()[idx].path)
if worldconfig.creative_mode ~= nil then
core.setting_set("creative_mode", worldconfig.creative_mode)
end
if worldconfig.enable_damage ~= nil then
core.setting_set("enable_damage", worldconfig.enable_damage)
end
end
--------------------------------------------------------------------------------
function image_column(tooltip, flagname)
return "image," ..
"tooltip=" .. core.formspec_escape(tooltip) .. "," ..
"0=" .. core.formspec_escape(defaulttexturedir .. "blank.png") .. "," ..
"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
res[#res + 1] = 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
res[#res + 1] = fav
end
end
return res
end
--------------------------------------------------------------------------------
function render_favorite(spec,render_details)
local text = ""
if spec.name ~= nil then
text = text .. core.formspec_escape(spec.name:trim())
-- if spec.description ~= nil and
-- core.formspec_escape(spec.description):trim() ~= "" then
-- text = text .. " (" .. core.formspec_escape(spec.description) .. ")"
-- end
else
if spec.address ~= nil then
text = text .. spec.address:trim()
if spec.port ~= nil then
text = text .. ":" .. spec.port
end
end
end
if not render_details then
return text
end
local details = ""
local grey_out = not is_server_protocol_compat(spec.proto_min, spec.proto_max)
if spec.clients ~= nil and spec.clients_max ~= nil then
local clients_color = ''
local clients_percent = 100 * spec.clients / spec.clients_max
-- Choose a color depending on how many clients are connected
-- (relatively to clients_max)
if spec.clients == 0 then
clients_color = '' -- 0 players: default/white
elseif spec.clients == spec.clients_max then
clients_color = '#dd5b5b' -- full server: red (darker)
elseif clients_percent <= 60 then
clients_color = '#a1e587' -- 0-60%: green
elseif clients_percent <= 90 then
clients_color = '#ffdc97' -- 60-90%: yellow
else
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
if spec.creative then
details = details .. "1,"
else
details = details .. "0,"
end
if spec.damage then
details = details .. "1,"
else
details = details .. "0,"
end
if spec.pvp then
details = details .. "1,"
else
details = details .. "0,"
end
return details .. (grey_out and '#aaaaaa,' or ',') .. text
end
--------------------------------------------------------------------------------
os.tempfolder = function()
if core.setting_get("TMPFolder") then
return core.setting_get("TMPFolder") .. DIR_DELIM .. "MT_" .. math.random(0,10000)
end
local filetocheck = os.tmpname()
os.remove(filetocheck)
local randname = "MTTempModFolder_" .. math.random(0,10000)
if DIR_DELIM == "\\" then
local tempfolder = os.getenv("TEMP")
return tempfolder .. filetocheck
else
local backstring = filetocheck:reverse()
return filetocheck:sub(0,filetocheck:len()-backstring:find(DIR_DELIM)+1) ..randname
end
end
--------------------------------------------------------------------------------
function menu_render_worldlist()
local retval = ""
local current_worldlist = menudata.worldlist:get_list()
for i,v in ipairs(current_worldlist) do
if retval ~= "" then
retval = retval ..","
end
retval = retval .. core.formspec_escape(v.name) ..
" \\[" .. core.formspec_escape(v.gameid) .. "\\]"
end
return retval
end
--------------------------------------------------------------------------------
function menu_handle_key_up_down(fields,textlist,settingname)
if fields["key_up"] then
local oldidx = core.get_textlist_index(textlist)
if oldidx ~= nil and oldidx > 1 then
local newidx = oldidx -1
core.setting_set(settingname,
menudata.worldlist:get_raw_index(newidx))
configure_selected_world_params(newidx)
end
return true
end
if fields["key_down"] then
local oldidx = core.get_textlist_index(textlist)
if oldidx ~= nil and oldidx < menudata.worldlist:size() then
local newidx = oldidx + 1
core.setting_set(settingname,
menudata.worldlist:get_raw_index(newidx))
configure_selected_world_params(newidx)
end
return true
end
return false
end
--------------------------------------------------------------------------------
function asyncOnlineFavourites()
if not menudata.public_known then
menudata.public_known = {{
name = fgettext("Loading..."),
description = fgettext_ne("Try reenabling public serverlist and check your internet connection.")
}}
end
menudata.favorites = menudata.public_known
core.handle_async(
function(param)
return core.get_favorites("online")
end,
nil,
function(result)
if core.setting_getbool("public_serverlist") then
local favs = order_favorite_list(result)
if favs[1] then
menudata.public_known = favs
menudata.favorites = menudata.public_known
end
core.event_handler("Refresh")
end
end
)
end
--------------------------------------------------------------------------------
function text2textlist(xpos,ypos,width,height,tl_name,textlen,text,transparency)
local textlines = core.splittext(text,textlen)
local retval = "textlist[" .. xpos .. "," .. ypos .. ";"
.. width .. "," .. height .. ";"
.. tl_name .. ";"
for i=1, #textlines, 1 do
textlines[i] = textlines[i]:gsub("\r","")
retval = retval .. core.formspec_escape(textlines[i]) .. ","
end
retval = retval .. ";0;"
if transparency then
retval = retval .. "true"
end
retval = retval .. "]"
return retval
end
--------------------------------------------------------------------------------
function is_server_protocol_compat(server_proto_min, server_proto_max)
return not ((min_supp_proto > (server_proto_max or 24)) or (max_supp_proto < (server_proto_min or 13)))
end
--------------------------------------------------------------------------------
function is_server_protocol_compat_or_error(server_proto_min, server_proto_max)
if not is_server_protocol_compat(server_proto_min, server_proto_max) then
local server_prot_ver_info
local client_prot_ver_info
if server_proto_min ~= server_proto_max then
server_prot_ver_info = fgettext_ne("Server supports protocol versions between $1 and $2. ",
server_proto_min or 13, server_proto_max or 24)
else
server_prot_ver_info = fgettext_ne("Server enforces protocol version $1. ",
server_proto_min or 13)
end
if min_supp_proto ~= max_supp_proto then
client_prot_ver_info= fgettext_ne("We support protocol versions between version $1 and $2.",
min_supp_proto, max_supp_proto)
else
client_prot_ver_info = fgettext_ne("We only support protocol version $1.", min_supp_proto)
end
gamedata.errormessage = fgettext_ne("Protocol version mismatch. ")
.. server_prot_ver_info
.. client_prot_ver_info
return false
end
return true
end
--------------------------------------------------------------------------------
function menu_worldmt(selected, setting, value)
local world = menudata.worldlist:get_list()[selected]
if world then
local filename = world.path .. DIR_DELIM .. "world.mt"
local world_conf = Settings(filename)
if value ~= nil then
if not world_conf:write() then
core.log("error", "Failed to write world config file")
end
world_conf:set(setting, value)
world_conf:write()
else
return world_conf:get(setting)
end
else
return nil
end
end
function menu_worldmt_legacy(selected)
local modes_names = {"creative_mode", "enable_damage", "server_announce"}
for _, mode_name in pairs(modes_names) do
local mode_val = menu_worldmt(selected, mode_name)
if mode_val ~= nil then
core.setting_set(mode_name, mode_val)
else
menu_worldmt(selected, mode_name, core.setting_get(mode_name))
end
end
end