ACIL FM

Nama	Ukuran	Aksi
base.lua	5.4 MB	View DL Edit
base64.lua	3.06 MB	View DL Edit
coroutine.lua	769 B	View DL Edit
ctx.lua	3.71 MB	View DL Edit
exit.lua	1.41 MB	View DL Edit
hash.lua	3.92 MB	View DL Edit
misc.lua	5.7 MB	View DL Edit
ndk.lua	2.13 MB	View DL Edit
param.lua	2.35 MB	View DL Edit
phase.lua	1.48 MB	View DL Edit
regex.lua	34.61 MB	View DL Edit
request.lua	11.14 MB	View DL Edit
response.lua	6.21 MB	View DL Edit
shdict.lua	26.56 MB	View DL Edit
socket.lua	7.22 MB	View DL Edit
time.lua	4.64 MB	View DL Edit
uri.lua	3.03 MB	View DL Edit
utils.lua	972 B	View DL Edit
var.lua	3.82 MB	View DL Edit
worker.lua	3.41 MB	View DL Edit

Edit file: /opt/imunify360-webshield/lualib/resty/core/base64.lua

-- Copyright (C) Yichun Zhang (agentzh)

local ffi = require "ffi"
local base = require "resty.core.base"

local C = ffi.C
local ffi_string = ffi.string
local ngx = ngx
local type = type
local error = error
local floor = math.floor
local tostring = tostring
local get_string_buf = base.get_string_buf
local get_size_ptr = base.get_size_ptr
local subsystem = ngx.config.subsystem

local ngx_lua_ffi_encode_base64
local ngx_lua_ffi_decode_base64

if subsystem == "http" then
    ffi.cdef[[
    size_t ngx_http_lua_ffi_encode_base64(const unsigned char *src,
                                          size_t len, unsigned char *dst,
                                          int no_padding);

int ngx_http_lua_ffi_decode_base64(const unsigned char *src,
                                       size_t len, unsigned char *dst,
                                       size_t *dlen);
    ]]

ngx_lua_ffi_encode_base64 = C.ngx_http_lua_ffi_encode_base64
    ngx_lua_ffi_decode_base64 = C.ngx_http_lua_ffi_decode_base64

elseif subsystem == "stream" then
    ffi.cdef[[
    size_t ngx_stream_lua_ffi_encode_base64(const unsigned char *src,
                                            size_t len, unsigned char *dst,
                                            int no_padding);

int ngx_stream_lua_ffi_decode_base64(const unsigned char *src,
                                         size_t len, unsigned char *dst,
                                         size_t *dlen);
    ]]

ngx_lua_ffi_encode_base64 = C.ngx_stream_lua_ffi_encode_base64
    ngx_lua_ffi_decode_base64 = C.ngx_stream_lua_ffi_decode_base64
end

local function base64_encoded_length(len, no_padding)
    return no_padding and floor((len * 8 + 5) / 6) or
           floor((len + 2) / 3) * 4
end

ngx.encode_base64 = function (s, no_padding)
    if type(s) ~= 'string' then
        if not s then
            s = ''
        else
            s = tostring(s)
        end
    end

local slen = #s
    local no_padding_bool = false;
    local no_padding_int = 0;

if no_padding then
        if no_padding ~= true then
            local typ = type(no_padding)
            error("bad no_padding: boolean expected, got " .. typ, 2)
        end

no_padding_bool = true
        no_padding_int  = 1;
    end

local dlen = base64_encoded_length(slen, no_padding_bool)
    local dst = get_string_buf(dlen)
    local r_dlen = ngx_lua_ffi_encode_base64(s, slen, dst, no_padding_int)
    -- if dlen ~= r_dlen then error("discrepancy in len") end
    return ffi_string(dst, r_dlen)
end

local function base64_decoded_length(len)
    return floor((len + 3) / 4) * 3
end

ngx.decode_base64 = function (s)
    if type(s) ~= 'string' then
        error("string argument only", 2)
    end
    local slen = #s
    local dlen = base64_decoded_length(slen)
    -- print("dlen: ", tonumber(dlen))
    local dst = get_string_buf(dlen)
    local pdlen = get_size_ptr()
    local ok = ngx_lua_ffi_decode_base64(s, slen, dst, pdlen)
    if ok == 0 then
        return nil
    end
    return ffi_string(dst, pdlen[0])
end

return {
    version = base.version
}

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