From 4866b7c32b67736aa317dd70343ea48f7c30d394 Mon Sep 17 00:00:00 2001
From: Vitaliy Olkhin <ovvitalik@gmail.com>
Date: Mon, 11 Nov 2024 17:38:09 +0500
Subject: [PATCH] init new project

---
 hash.lua                  | 193 ++++++++++++++++++++++++++++++++++++++
 init.lua                  |  65 +++++++++++++
 locale/site_connect.ru.tr |   7 ++
 mod.conf                  |   5 +
 4 files changed, 270 insertions(+)
 create mode 100644 hash.lua
 create mode 100644 init.lua
 create mode 100644 locale/site_connect.ru.tr
 create mode 100644 mod.conf

diff --git a/hash.lua b/hash.lua
new file mode 100644
index 0000000..f82f383
--- /dev/null
+++ b/hash.lua
@@ -0,0 +1,193 @@
+--[[
+
+Usage:
+
+local Hash = sha256(Message, Salt?)
+print(Hash)
+
+]]
+
+local mod = 2^32
+local modm = mod-1
+
+local function memoize(f)
+    local mt = {}
+    local t = setmetatable({}, mt)
+    function mt:__index(k)
+        local v = f(k)
+        t[k] = v
+        return v
+    end
+    return t
+end
+
+local function make_bitop_uncached(t, m)
+    local function bitop(a, b)
+        local res,p = 0,1
+        while a ~= 0 and b ~= 0 do
+            local am, bm = a % m, b % m
+            res = res + t[am][bm] * p
+            a = (a - am) / m
+            b = (b - bm) / m
+            p = p*m
+        end
+        res = res + (a + b) * p
+        return res
+    end
+    return bitop
+end
+
+local function make_bitop(t)
+    local op1 = make_bitop_uncached(t,2^1)
+    local op2 = memoize(function(a) return memoize(function(b) return op1(a, b) end) end)
+    return make_bitop_uncached(op2, 2 ^ (t.n or 1))
+end
+
+local bxor1 = make_bitop({[0] = {[0] = 0,[1] = 1}, [1] = {[0] = 1, [1] = 0}, n = 4})
+
+local function bxor(a, b, c, ...)
+    local z = nil
+    if b then
+        a = a % mod
+        b = b % mod
+        z = bxor1(a, b)
+        if c then z = bxor(z, c, ...) end
+        return z
+    elseif a then return a % mod
+    else return 0 end
+end
+
+local function band(a, b, c, ...)
+    local z
+    if b then
+        a = a % mod
+        b = b % mod
+        z = ((a + b) - bxor1(a,b)) / 2
+        if c then z = bit32_band(z, c, ...) end
+        return z
+    elseif a then return a % mod
+    else return modm end
+end
+
+local function bnot(x) return (-1 - x) % mod end
+
+local function rshift1(a, disp)
+    if disp < 0 then return lshift(a,-disp) end
+    return math.floor(a % 2 ^ 32 / 2 ^ disp)
+end
+
+local function rshift(x, disp)
+    if disp > 31 or disp < -31 then return 0 end
+    return rshift1(x % mod, disp)
+end
+
+local function lshift(a, disp)
+    if disp < 0 then return rshift(a,-disp) end
+    return (a * 2 ^ disp) % 2 ^ 32
+end
+
+local function rrotate(x, disp)
+    x = x % mod
+    disp = disp % 32
+    local low = band(x, 2 ^ disp - 1)
+    return rshift(x, disp) + lshift(low, 32 - disp)
+end
+
+local k = {
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+    0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+    0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+    0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+    0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+    0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+    0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+    0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+    0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
+}
+
+local function str2hexa(s)
+    return (string.gsub(s, ".", function(c) return string.format("%02x", string.byte(c)) end))
+end
+
+local function num2s(l, n)
+    local s = ""
+    for i = 1, n do
+        local rem = l % 256
+        s = string.char(rem) .. s
+        l = (l - rem) / 256
+    end
+    return s
+end
+
+local function s232num(s, i)
+    local n = 0
+    for i = i, i + 3 do n = n*256 + string.byte(s, i) end
+    return n
+end
+
+local function preproc(msg, len)
+    local extra = 64 - ((len + 9) % 64)
+    len = num2s(8 * len, 8)
+    msg = msg .. "\128" .. string.rep("\0", extra) .. len
+    assert(#msg % 64 == 0)
+    return msg
+end
+
+local function InitH256(H)
+    H[1] = 0x6a09e667
+    H[2] = 0xbb67ae85
+    H[3] = 0x3c6ef372
+    H[4] = 0xa54ff53a
+    H[5] = 0x510e527f
+    H[6] = 0x9b05688c
+    H[7] = 0x1f83d9ab
+    H[8] = 0x5be0cd19
+    return H
+end
+
+local function DigestBlock(msg, i, H)
+    local w = {}
+    for j = 1, 16 do w[j] = s232num(msg, i + (j - 1)*4) end
+    for j = 17, 64 do
+        local v = w[j - 15]
+        local s0 = bxor(rrotate(v, 7), rrotate(v, 18), rshift(v, 3))
+        v = w[j - 2]
+        w[j] = w[j - 16] + s0 + w[j - 7] + bxor(rrotate(v, 17), rrotate(v, 19), rshift(v, 10))
+    end
+
+    local a, b, c, d, e, f, g, h = H[1], H[2], H[3], H[4], H[5], H[6], H[7], H[8]
+    for i = 1, 64 do
+        local s0 = bxor(rrotate(a, 2), rrotate(a, 13), rrotate(a, 22))
+        local maj = bxor(band(a, b), band(a, c), band(b, c))
+        local t2 = s0 + maj
+        local s1 = bxor(rrotate(e, 6), rrotate(e, 11), rrotate(e, 25))
+        local ch = bxor (band(e, f), band(bnot(e), g))
+        local t1 = h + s1 + ch + k[i] + w[i]
+        h, g, f, e, d, c, b, a = g, f, e, d + t1, c, b, a, t1 + t2
+    end
+
+    H[1] = band(H[1] + a)
+    H[2] = band(H[2] + b)
+    H[3] = band(H[3] + c)
+    H[4] = band(H[4] + d)
+    H[5] = band(H[5] + e)
+    H[6] = band(H[6] + f)
+    H[7] = band(H[7] + g)
+    H[8] = band(H[8] + h)
+end
+
+function sha256(msg, salt)
+    salt = salt or ""
+    msg = preproc(msg, #msg) .. salt
+    local H = InitH256({})
+    for i = 1, #msg, 64 do DigestBlock(msg, i, H) end
+    return str2hexa(num2s(H[1], 4) .. num2s(H[2], 4) .. num2s(H[3], 4) .. num2s(H[4], 4)
+        .. num2s(H[5], 4) .. num2s(H[6], 4) .. num2s(H[7], 4) .. num2s(H[8], 4))
+end
diff --git a/init.lua b/init.lua
new file mode 100644
index 0000000..605e687
--- /dev/null
+++ b/init.lua
@@ -0,0 +1,65 @@
+local S = minetest.get_translator("site_connect")
+site_connect = {}
+site_connect.modpath = minetest.get_modpath("site_connect")
+dofile(site_connect.modpath.."/hash.lua")
+
+local pass = {}
+
+--[[
+formspec_version[6]
+size[8,5]
+button[4.4,3.7;3,0.8;save;Сохранить]
+field[0.5,2.2;5,0.8;pass;Пароль;]
+label[0.5,1.2;Введите пароль\, для авторизации на сайте]
+label[0.5,0.6;Внимание! Сайт в процесе разработки]
+label[0.5,3.4;Сообщение]
+]]
+local function get_formspec_main(name)
+    local formspec = {
+        "size[8,5]",
+        "label[0.2,0.4;".. S("Attention! The site is under development.") .."]",
+        "label[0.2,1;" .. S("Enter your password to log in to the site") .. "]",
+        "field[0.5,2.2;5,0.8;pass;".. S("Password") ..";]",
+        "button[4.3,3.4;3,0.8;save;".. S("Save") .."]",
+    }
+    if pass[name] == 'empty' then
+        table.insert(formspec, 'label[0.2,3.4;'.. S("The password field must not be empty.") ..']')
+    end
+    if pass[name] == 'success' then
+        table.insert(formspec, 'label[0.2,3.4;'.. S("Password saved") ..']')
+    end
+
+    return table.concat(formspec, "")
+end
+
+minetest.register_chatcommand("set_site_pass", {
+    description = S("Setting up an authorization password for the site"),
+    privs = { interact = true },
+    func = function(name)
+        minetest.show_formspec(name, "site_connect:set_password", get_formspec_main(name))
+    end
+})
+
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+    local name = player:get_player_name()
+
+    if formname ~= "site_connect:set_password" then
+        return
+    end
+
+    if fields.save then
+        local fpass = string.gsub(fields.pass, "%s+", "")
+
+        if fpass == '' then
+            --minetest.chat_send_all('Поле пароля не должно быть пустым')
+            pass[name] = 'empty'
+            minetest.show_formspec(name, "site_connect:set_password", get_formspec_main(name))
+            return
+        end
+        pass[name] = 'success'
+        local save_meta = player:get_meta()
+        save_meta:set_string("site_connect:password", sha256(fpass))
+        minetest.show_formspec(name, "site_connect:set_password", get_formspec_main(name))
+        --minetest.chat_send_all(sha256(fields.pass))
+    end
+end)
\ No newline at end of file
diff --git a/locale/site_connect.ru.tr b/locale/site_connect.ru.tr
new file mode 100644
index 0000000..a1d80a4
--- /dev/null
+++ b/locale/site_connect.ru.tr
@@ -0,0 +1,7 @@
+Setting up an authorization password for the site=Установка авторизационного пароля на сайт
+Enter your password to log in to the site=Введите пароль для авторизации на сайте
+Attention! The site is under development.=Внимание! Сайт в процессе разработки.
+Password=Пароль
+Save=Сохранить
+The password field must not be empty.=Поле пароля не должно быть пустым
+Password saved=Пароль сохранен
\ No newline at end of file
diff --git a/mod.conf b/mod.conf
new file mode 100644
index 0000000..04a6033
--- /dev/null
+++ b/mod.conf
@@ -0,0 +1,5 @@
+name = site_connect
+description = Allows you to interact with the site via sql
+min_minetest_version = 5.7
+title = Site Connect
+author = VinAdmin