>ROllerozxa at 13:56, 25 October 2022

2022-10-25T13:56:09Z

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{{UnofficialLua}}
{{DISPLAYTITLE:minetest.register_authentication_handler}}

Registers a custom authentication handler. See this for an example authentication handler:

<source>
local function read_auth_file()
local newtable = {}
local file, errmsg = io.open(minetest.auth_file_path, 'rb')
if not file then
minetest.log("info", minetest.auth_file_path.." could not be opened for reading ("..errmsg.."); assuming new world")
return
end
for line in file:lines() do
if line ~= "" then
local name, password, privilegestring = string.match(line, "([^:]*):([^:]*):([^:]*)")
if not name or not password or not privilegestring then
error("Invalid line in auth.txt: "..dump(line))
end
local privileges = minetest.string_to_privs(privilegestring)
newtable[name] = {password=password, privileges=privileges}
end
end
io.close(file)
minetest.auth_table = newtable
minetest.notify_authentication_modified()
end

local function save_auth_file()
local newtable = {}
-- Check table for validness before attempting to save
for name, stuff in pairs(minetest.auth_table) do
assert(type(name) == "string")
assert(name ~= "")
assert(type(stuff) == "table")
assert(type(stuff.password) == "string")
assert(type(stuff.privileges) == "table")
end
local file, errmsg = io.open(minetest.auth_file_path, 'w+b')
if not file then
error(minetest.auth_file_path.." could not be opened for writing: "..errmsg)
end
for name, stuff in pairs(minetest.auth_table) do
local privstring = minetest.privs_to_string(stuff.privileges)
file:write(name..":"..stuff.password..":"..privstring..'\n')
end
io.close(file)
end

minetest.builtin_auth_handler = {
get_auth = function(name)
assert(type(name) == "string")
-- Figure out what password to use for a new player (singleplayer
-- always has an empty password, otherwise use default, which is
-- usually empty too)
local new_password_hash = ""
-- If not in authentication table, return nil
if not minetest.auth_table[name] then
return nil
end
-- Figure out what privileges the player should have.
-- Take a copy of the privilege table
local privileges = {}
for priv, _ in pairs(minetest.auth_table[name].privileges) do
privileges[priv] = true
end
-- If singleplayer, give all privileges except those marked as give_to_singleplayer = false
if minetest.is_singleplayer() then
for priv, def in pairs(minetest.registered_privileges) do
if def.give_to_singleplayer then
privileges[priv] = true
end
end
-- For the admin, give everything
elseif name == minetest.setting_get("name") then
for priv, def in pairs(minetest.registered_privileges) do
privileges[priv] = true
end
end
-- All done
return {
password = minetest.auth_table[name].password,
privileges = privileges,
}
end,
create_auth = function(name, password)
assert(type(name) == "string")
assert(type(password) == "string")
minetest.log('info', "Built-in authentication handler adding player '"..name.."'")
minetest.auth_table[name] = {
password = password,
privileges = minetest.string_to_privs(minetest.setting_get("default_privs")),
}
save_auth_file()
end,
set_password = function(name, password)
assert(type(name) == "string")
assert(type(password) == "string")
if not minetest.auth_table[name] then
minetest.builtin_auth_handler.create_auth(name, password)
else
minetest.log('info', "Built-in authentication handler setting password of player '"..name.."'")
minetest.auth_table[name].password = password
save_auth_file()
end
return true
end,
set_privileges = function(name, privileges)
assert(type(name) == "string")
assert(type(privileges) == "table")
if not minetest.auth_table[name] then
minetest.builtin_auth_handler.create_auth(name, minetest.get_password_hash(name, minetest.setting_get("default_password")))
end
minetest.auth_table[name].privileges = privileges
minetest.notify_authentication_modified(name)
save_auth_file()
end,
reload = function()
read_auth_file()
return true
end,
}
</source>

[[Category:Methods|r]]

Minetest.register authentication handler - Revision history

>ROllerozxa at 13:56, 25 October 2022