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Code simplification and securisation

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This commit is contained in:
Pierre-Yves Rollo 2018-11-18 15:29:59 +01:00
parent b8357a505c
commit 641dddfd51
2 changed files with 100 additions and 107 deletions
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125
font_api/fontform.lua
View File

@ -19,67 +19,37 @@
local modname = minetest.get_current_modname()
-- Context management functions (surely many improvements to do)
local contexts = {}
local function get_player_name(player)
if type(player) == 'string' then return player end
if type(player) == 'userdata' and player.get_player_name then
return player:get_player_name()
end
minetest.log('warning', '['..modname..'] get_player_name could not identify player.')
end
minetest.register_on_leaveplayer(function(player)
local playername = get_player_name(player)
if playername then contexts[playername] = nil end
if minetest.is_player(player) then
contexts[player:get_player_name()] = nil
end
end)
local function new_context(player, context)
local playername = get_player_name(player)
if playername then
contexts[playername] = context
contexts[playername].playername = playername
return contexts[playername]
end
end
local function get_context(player)
local playername = get_player_name(player)
if playername then
if contexts[playername] then
return contexts[playername]
else
minetest.log('warning', '['..modname..'] Context not found for player "'..playername..'"')
end
end
end
local function update_context(player, changes)
local playername = get_player_name(player)
if playername then
local function get_context(playername)
if not contexts[playername] then
contexts[playername] = { playername = playername }
end
for key, value in pairs(changes) do
contexts[playername][key] = value
end
end
return contexts[playername]
end
-- Show node formspec functions
local function show_node_formspec(player, pos)
local function show_node_formspec(playername, pos)
local meta = minetest.get_meta(pos)
local playername = get_player_name(player)
-- Decontextualize formspec
local fs = meta:get_string('formspec')
if not fs then
return
end
-- Change context and currrent_name references to nodemeta references
fs = fs:gsub("current_name", "nodemeta:"..pos.x..","..pos.y..","..pos.z)
fs = fs:gsub("context", "nodemeta:"..pos.x..","..pos.y..","..pos.z)
-- Change context and currrent_name references to nodemeta references
local nodemeta = string.format("nodemeta:%i,%i,%i", pos.x, pos.y ,pos.z)
fs = fs:gsub("current_name", nodemeta)
fs = fs:gsub("context", nodemeta)
-- Change all ${} to their corresponding metadata values
local s, e
@ -92,44 +62,44 @@ local function show_node_formspec(player, pos)
end
until s == nil
local context = get_context(playername)
context.node_pos = pos
-- Find node on_receive_fields
local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
if ndef and ndef.on_receive_fields then
update_context(player, { on_receive_fields = ndef.on_receive_fields } )
context.on_receive_fields = ndef.on_receive_fields
end
update_context(player, { node_pos = pos } )
-- Show formspec
minetest.show_formspec(playername, modname..':context_formspec', fs)
end
minetest.register_on_player_receive_fields(function(player, formname, fields)
if formname == modname..':context_formspec' then
local context = get_context(player)
if context == nil then return end
if formname ~= modname..':context_formspec' then
return
end
if not minetest.is_player(player) then
return true
end
local context = get_context(player:get_player_name())
if context.on_receive_fields then
context.on_receive_fields(context.pos, '', fields, player)
end
end
return true
end)
-- Specific functions
local function font_list_prepare()
local list = {}
local function show_font_formspec(playername)
local context = get_context(playername)
local fonts = {}
for name, _ in pairs(font_api.registered_fonts) do
list[#list+1] = name
fonts[#fonts+1] = name
end
table.sort(list)
return list
end
local function show_fs(player)
local context = get_context(player)
if context == nil then return end
local fonts = font_list_prepare()
table.sort(fonts)
local fs = 'size[4,'..(#fonts + 0.8)..']'
..default.gui_bg..default.gui_bg_img..default.gui_slots
@ -146,9 +116,20 @@ local function show_fs(player)
end
minetest.register_on_player_receive_fields(function(player, formname, fields)
if formname == modname..':font_list' then
local context = get_context(player)
if context == nil then return end
if formname ~= modname..':font_list' then
return
end
if not minetest.is_player(player) then
return true
end
local playername = player:get_player_name()
local context = get_context(playername)
if minetest.is_protected(context.pos, playername) then
return true
end
if fields.quit == 'true' then
for name, _ in pairs(font_api.registered_fonts) do
@ -158,14 +139,16 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
display_api.update_entities(context.pos)
end
end
-- Using after to avoid the "double close" bug
minetest.after(0, show_node_formspec, player, context.pos)
end
minetest.after(0, show_node_formspec, playername, context.pos)
end
return true
end)
function font_api.show_font_list(player, pos)
new_context(player, { pos = pos })
show_fs(player)
function font_api.show_font_list_from_pos(player, pos)
if minetest.is_player(player) then
local context = get_context(player:get_player_name())
context.pos = pos
show_font_formspec(player:get_player_name())
end
end

44
signs_api/init.lua
View File

@ -35,7 +35,9 @@ function signs_api.set_display_text(pos, text, font)
else
meta:set_string("infotext", "")
end
if font then
meta:set_string("font", font)
end
display_api.update_entities(pos)
end
@ -45,39 +47,50 @@ function signs_api.set_formspec(pos)
if ndef and ndef.display_entities
and ndef.display_entities["signs:display_text"] then
local maxlines = ndef.display_entities["signs:display_text"].maxlines
local formspec, formheight
local fs, x, y
if maxlines == 1 then
formspec =
"field[0.5,0.7;5.5,1;display_text;"..F("Text")..
fs = "field[0.5,0.7;5.5,1;display_text;"..F("Text")..
";${display_text}]"
formheight = 2
y = 1.2
else
local extralabel = ""
if maxlines then
extralabel = F(" (first %s lines only)"):format(maxlines)
end
formspec =
"textarea[0.5,0.7;5.5,2;display_text;"..F("Text")..""..
fs = "textarea[0.5,0.7;5.5,2;display_text;"..F("Text")..""..
extralabel..";${display_text}]"
formheight = 3
y = 2.4
end
formspec = formspec.."button_exit[2,"..formheight..";2,1;ok;"..
x = 0.2
fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_font.png;font;]"
x = x + 0.4
fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_left.png;left;]"
x = x + 0.4
fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_center.png;center;]"
x = x + 0.4
fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_right.png;right;]"
y = y + 0.7
fs = fs.."button_exit[2,"..y..";2,1;ok;"..
F("Write").."]"
formheight = formheight + 1
formspec = "size[6,"..formheight.."]"..default.gui_bg..
default.gui_bg_img..default.gui_slots..formspec
y = y + 0.8
fs = "size[6,"..y.."]"..default.gui_bg..
default.gui_bg_img..default.gui_slots..fs
meta:set_string("formspec", formspec)
meta:set_string("formspec", fs)
end
end
function signs_api.on_receive_fields(pos, formname, fields, player)
if not minetest.is_protected(pos, player:get_player_name()) then
if fields and (fields.ok or fields.key_enter) then
signs_api.set_display_text(pos, fields.display_text, fields.font)
signs_api.set_display_text(pos, fields.display_text)
end
if fields and (fields.font) then
signs_api.set_display_text(pos, fields.display_text)
font_api.show_font_list_from_pos(player, pos)
end
end
end
@ -184,6 +197,7 @@ function signs_api.register_sign(mod, name, model)
on_rotate = signs_api.on_rotate,
on_receive_fields = signs_api.on_receive_fields,
on_punch = function(pos, node, player, pointed_thing)
signs_api.set_formspec(pos)
display_api.update_entities(pos)
end,
}
@ -211,7 +225,3 @@ end
-- Text entity for all signs
display_api.register_display_entity("signs:display_text")