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shit, pretty much ignore it

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This commit is contained in:
Paul Liverman
2015-04-03 13:44:40 -07:00
parent 556695535f
commit 57b40f4082
3 changed files with 1019 additions and 0 deletions
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350
src/lib/gamejolt/http.lua Normal file
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-----------------------------------------------------------------------------
-- HTTP/1.1 client support for the Lua language.
-- LuaSocket toolkit.
-- Author: Diego Nehab
-- RCS ID: $Id: http.lua,v 1.71 2007/10/13 23:55:20 diego Exp $
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
-- Declare module and import dependencies
-------------------------------------------------------------------------------
local socket = require("socket")
local url = require("socket.url")
local ltn12 = require("ltn12")
local mime = require("mime")
local string = require("string")
local base = _G
local table = require("table")
module("socket.http")
-----------------------------------------------------------------------------
-- Program constants
-----------------------------------------------------------------------------
-- connection timeout in seconds
TIMEOUT = 60
-- default port for document retrieval
PORT = 80
-- user agent field sent in request
USERAGENT = socket._VERSION
-----------------------------------------------------------------------------
-- Reads MIME headers from a connection, unfolding where needed
-----------------------------------------------------------------------------
local function receiveheaders(sock, headers)
local line, name, value, err
headers = headers or {}
-- get first line
line, err = sock:receive()
if err then return nil, err end
-- headers go until a blank line is found
while line ~= "" do
-- get field-name and value
name, value = socket.skip(2, string.find(line, "^(.-):%s*(.*)"))
if not (name and value) then return nil, "malformed reponse headers" end
name = string.lower(name)
-- get next line (value might be folded)
line, err = sock:receive()
if err then return nil, err end
-- unfold any folded values
while string.find(line, "^%s") do
value = value .. line
line = sock:receive()
if err then return nil, err end
end
-- save pair in table
if headers[name] then headers[name] = headers[name] .. ", " .. value
else headers[name] = value end
end
return headers
end
-----------------------------------------------------------------------------
-- Extra sources and sinks
-----------------------------------------------------------------------------
socket.sourcet["http-chunked"] = function(sock, headers)
return base.setmetatable({
getfd = function() return sock:getfd() end,
dirty = function() return sock:dirty() end
}, {
__call = function()
-- get chunk size, skip extention
local line, err = sock:receive()
if err then return nil, err end
local size = base.tonumber(string.gsub(line, ";.*", ""), 16)
if not size then return nil, "invalid chunk size" end
-- was it the last chunk?
if size > 0 then
-- if not, get chunk and skip terminating CRLF
local chunk, err, part = sock:receive(size)
if chunk then sock:receive() end
return chunk, err
else
-- if it was, read trailers into headers table
headers, err = receiveheaders(sock, headers)
if not headers then return nil, err end
end
end
})
end
socket.sinkt["http-chunked"] = function(sock)
return base.setmetatable({
getfd = function() return sock:getfd() end,
dirty = function() return sock:dirty() end
}, {
__call = function(self, chunk, err)
if not chunk then return sock:send("0\r\n\r\n") end
local size = string.format("%X\r\n", string.len(chunk))
return sock:send(size .. chunk .. "\r\n")
end
})
end
-----------------------------------------------------------------------------
-- Low level HTTP API
-----------------------------------------------------------------------------
local metat = { __index = {} }
function open(host, port, create)
-- create socket with user connect function, or with default
local c = socket.try((create or socket.tcp)())
local h = base.setmetatable({ c = c }, metat)
-- create finalized try
h.try = socket.newtry(function() h:close() end)
-- set timeout before connecting
h.try(c:settimeout(TIMEOUT))
h.try(c:connect(host, port or PORT))
-- here everything worked
return h
end
function metat.__index:sendrequestline(method, uri)
local reqline = string.format("%s %s HTTP/1.1\r\n", method or "GET", uri)
return self.try(self.c:send(reqline))
end
function metat.__index:sendheaders(headers)
local h = "\r\n"
for i, v in base.pairs(headers) do
h = i .. ": " .. v .. "\r\n" .. h
end
self.try(self.c:send(h))
return 1
end
function metat.__index:sendbody(headers, source, step)
source = source or ltn12.source.empty()
step = step or ltn12.pump.step
-- if we don't know the size in advance, send chunked and hope for the best
local mode = "http-chunked"
if headers["content-length"] then mode = "keep-open" end
return self.try(ltn12.pump.all(source, socket.sink(mode, self.c), step))
end
function metat.__index:receivestatusline()
local status = self.try(self.c:receive(5))
-- identify HTTP/0.9 responses, which do not contain a status line
-- this is just a heuristic, but is what the RFC recommends
if status ~= "HTTP/" then return nil, status end
-- otherwise proceed reading a status line
status = self.try(self.c:receive("*l", status))
local code = socket.skip(2, string.find(status, "HTTP/%d*%.%d* (%d%d%d)"))
return self.try(base.tonumber(code), status)
end
function metat.__index:receiveheaders()
return self.try(receiveheaders(self.c))
end
function metat.__index:receivebody(headers, sink, step)
sink = sink or ltn12.sink.null()
step = step or ltn12.pump.step
local length = base.tonumber(headers["content-length"])
local t = headers["transfer-encoding"] -- shortcut
local mode = "default" -- connection close
if t and t ~= "identity" then mode = "http-chunked"
elseif base.tonumber(headers["content-length"]) then mode = "by-length" end
return self.try(ltn12.pump.all(socket.source(mode, self.c, length),
sink, step))
end
function metat.__index:receive09body(status, sink, step)
local source = ltn12.source.rewind(socket.source("until-closed", self.c))
source(status)
return self.try(ltn12.pump.all(source, sink, step))
end
function metat.__index:close()
return self.c:close()
end
-----------------------------------------------------------------------------
-- High level HTTP API
-----------------------------------------------------------------------------
local function adjusturi(reqt)
local u = reqt
-- if there is a proxy, we need the full url. otherwise, just a part.
if not reqt.proxy and not PROXY then
u = {
path = socket.try(reqt.path, "invalid path 'nil'"),
params = reqt.params,
query = reqt.query,
fragment = reqt.fragment
}
end
return url.build(u)
end
local function adjustproxy(reqt)
local proxy = reqt.proxy or PROXY
if proxy then
proxy = url.parse(proxy)
return proxy.host, proxy.port or 3128
else
return reqt.host, reqt.port
end
end
local function adjustheaders(reqt)
-- default headers
local lower = {
["user-agent"] = USERAGENT,
["host"] = reqt.host,
["connection"] = "close, TE",
["te"] = "trailers"
}
-- if we have authentication information, pass it along
if reqt.user and reqt.password then
lower["authorization"] =
"Basic " .. (mime.b64(reqt.user .. ":" .. reqt.password))
end
-- override with user headers
for i,v in base.pairs(reqt.headers or lower) do
lower[string.lower(i)] = v
end
return lower
end
-- default url parts
local default = {
host = "",
port = PORT,
path ="/",
scheme = "http"
}
local function adjustrequest(reqt)
-- parse url if provided
local nreqt = reqt.url and url.parse(reqt.url, default) or {}
-- explicit components override url
for i,v in base.pairs(reqt) do nreqt[i] = v end
if nreqt.port == "" then nreqt.port = 80 end
socket.try(nreqt.host and nreqt.host ~= "",
"invalid host '" .. base.tostring(nreqt.host) .. "'")
-- compute uri if user hasn't overriden
nreqt.uri = reqt.uri or adjusturi(nreqt)
-- ajust host and port if there is a proxy
nreqt.host, nreqt.port = adjustproxy(nreqt)
-- adjust headers in request
nreqt.headers = adjustheaders(nreqt)
return nreqt
end
local function shouldredirect(reqt, code, headers)
return headers.location and
string.gsub(headers.location, "%s", "") ~= "" and
(reqt.redirect ~= false) and
(code == 301 or code == 302) and
(not reqt.method or reqt.method == "GET" or reqt.method == "HEAD")
and (not reqt.nredirects or reqt.nredirects < 5)
end
local function shouldreceivebody(reqt, code)
if reqt.method == "HEAD" then return nil end
if code == 204 or code == 304 then return nil end
if code >= 100 and code < 200 then return nil end
return 1
end
-- forward declarations
local trequest, tredirect
function tredirect(reqt, location)
local result, code, headers, status = trequest {
-- the RFC says the redirect URL has to be absolute, but some
-- servers do not respect that
url = url.absolute(reqt.url, location),
source = reqt.source,
sink = reqt.sink,
headers = reqt.headers,
proxy = reqt.proxy,
nredirects = (reqt.nredirects or 0) + 1,
create = reqt.create
}
-- pass location header back as a hint we redirected
headers = headers or {}
headers.location = headers.location or location
return result, code, headers, status
end
function trequest(reqt)
-- we loop until we get what we want, or
-- until we are sure there is no way to get it
local nreqt = adjustrequest(reqt)
local h = open(nreqt.host, nreqt.port, nreqt.create)
-- send request line and headers
h:sendrequestline(nreqt.method, nreqt.uri)
h:sendheaders(nreqt.headers)
-- if there is a body, send it
if nreqt.source then
h:sendbody(nreqt.headers, nreqt.source, nreqt.step)
end
local code, status = h:receivestatusline()
-- if it is an HTTP/0.9 server, simply get the body and we are done
if not code then
h:receive09body(status, nreqt.sink, nreqt.step)
return 1, 200
end
local headers
-- ignore any 100-continue messages
while code == 100 do
headers = h:receiveheaders()
code, status = h:receivestatusline()
end
headers = h:receiveheaders()
-- at this point we should have a honest reply from the server
-- we can't redirect if we already used the source, so we report the error
if shouldredirect(nreqt, code, headers) and not nreqt.source then
h:close()
return tredirect(reqt, headers.location)
end
-- here we are finally done
if shouldreceivebody(nreqt, code) then
h:receivebody(headers, nreqt.sink, nreqt.step)
end
h:close()
return 1, code, headers, status
end
local function srequest(u, b)
local t = {}
local reqt = {
url = u,
sink = ltn12.sink.table(t)
}
if b then
reqt.source = ltn12.source.string(b)
reqt.headers = {
["content-length"] = string.len(b),
["content-type"] = "application/x-www-form-urlencoded"
}
reqt.method = "POST"
end
local code, headers, status = socket.skip(1, trequest(reqt))
return table.concat(t), code, headers, status
end
request = socket.protect(function(reqt, body)
if base.type(reqt) == "string" then return srequest(reqt, body)
else return trequest(reqt) end
end)

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src/lib/gamejolt/new/init.lua Normal file
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local folder = ({...})[1]:gsub('%.init$', '')
local md5 = require(folder .. ".md5" )
local http = require("socket.http")
local GJ = {
gameID, gameKey,
isLoggedIn = false,
username, userToken,
trophies = {}
}
local BASE_URL = "http://gamejolt.com/api/game/v1/"
local escape = function (a)
return tostring(a):gsub("([^%w%-%.%_])",function (a)
return string.format("%%%02X",string.byte(a))
end)
end
local function req(s, f, pu, pt, data)
local url = BASE_URL .. s .. "&game_id=" .. GJ.gameID .. "&format=" .. f
if pu then url = url .. "&username=" .. GJ.username end
if pt then url = url .. "&user_token=" .. GJ.userToken end
local b = md5.sumhexa(url .. GJ.gameKey)
url = url .. "&signature=" .. b
local r, e = http.request(url, data) --POST request if needed
return r
end
local function parseKeypair(s, on)
local c, len = 0, string.len(s)
local b, k, v
while c < len do
b = string.find(s, ":", c)
if b == nil then break end
k = string.sub(s, c, b - 1)
c = b + 2
b = string.find(s, '"', c)
v = string.sub(s, c, b - 1)
c = b + 3
on(k, v)
end
end
local function handleTrophies(str)
local d = req("trophies/?" .. str, "keypair", true, true)
local t, f = {}
parseKeypair(d, function(k, v)
if k ~= "success" then
if k == "id" then
f = {}
table.insert(t, f)
end
f[k] = v
end
end)
return t
end
function GJ.init(id, key, args)
GJ.gameID = id
GJ.gameKey = key
if args and type(args)=="table" then
for k,v in pairs(args) do
local a = v:match("^gjapi_(.*)")
if a then
key, value = a:match("^(.-)=(.-)$")
if key == "username" then
GJ.username = value
elseif key == "token" then
GJ.userToken = value
end
end
end
end
end
function GJ.getCredentials()
local a = love.system.getOS() == "Windows" and "\\" or "/"
local f = io.open(love.filesystem.getWorkingDirectory()..a.."gjapi-credentials.txt")
if f then
GJ.username = f:read()
GJ.userToken = f:read()
end
if GJ.username and GJ.userToken then
return true, GJ.username, GJ.userToken
else
return false, "Couldn't find, open or read the \"gjapi-credentials.txt\" file"
end
end
-- users
function GJ.authUser(name, token)
GJ.username = name or GJ.username or "" --Here we could put LÖVE default ones
GJ.userToken = token or GJ.userToken or ""
local s = string.find(req("users/auth/?", "dump", true, true), "SUCCESS") ~= nil
GJ.isLoggedIn = s
return s
end
function GJ.fetchUserByName(name)
local r = req("users/?username=" .. name, "keypair", false, false)
local t = {}
parseKeypair(r, function(k, v)
t[k] = v
end)
return t
end
function GJ.fetchUserByID(id)
local r = req("users/?user_id=" .. id, "keypair", false, false)
local t = {}
parseKeypair(r, function(k, v)
t[k] = v
end)
return t
end
-- sessions
function GJ.openSession()
return string.find(req("sessions/open/?", "dump", true, true), "SUCCESS") ~= nil
end
function GJ.pingSession(active)
local status = "idle"
if active then status = "active" end
return string.find(req("sessions/open/?status=" .. status, "dump", true, true), "SUCCESS") ~= nil
end
function GJ.closeSession()
return string.find(req("sessions/close/?", "dump", true, true), "SUCCESS") ~= nil
end
-- data store
function GJ.fetchData(key, isGlobal)
local pu, pt = true, true
if isGlobal then pu, pt = false, false end
local d = req("data-store/?key=" .. escape(key), "dump", pu, pt)
return string.sub(d, string.find(d, "\n"), string.len(d))
end
function GJ.setData(key, data, isGlobal)
local pu, pt = true, true
if isGlobal then pu, pt = false, false end
return string.find(req("data-store/set/?key=" .. escape(key) .. '&data=' .. escape(data), "dump", pu, pt), "SUCCESS") ~= nil
end
function GJ.setBigData(key, data, isGlobal)
local pu, pt = true, true
if isGlobal then pu, pt = false, false end
return string.find(req("data-store/set/?key=" .. escape(key), "dump", pu, pt, "data="..escape(data)), "SUCCESS") ~= nil
end
function GJ.updateData(key, value, operation, isGlobal)
local pu, pt = true, true
if isGlobal then pu, pt = false, false end
local d = req("data-store/update/?key=" .. escape(key) .. "&operation=" .. operation .. "&value=" .. escape(value), "dump", pu, pt)
return string.sub(d, string.find(d, "\n"), string.len(d))
end
function GJ.removeData(key, isGlobal)
local pu, pt = true, true
if isGlobal then pu, pt = false, false end
return string.find(req("data-store/remove/?key=" .. escape(key), "dump", pu, pt), "SUCCESS") ~= nil
end
function GJ.fetchStorageKeys(isGlobal)
local pu, pt = true, true
if isGlobal then pu, pt = false, false end
local d = req("data-store/get-keys/?", "keypair", pu, pt)
local t = {}
parseKeypair(d, function(k, v)
if k ~= "success" then table.insert(t, v) end
end)
return t
end
-- trophies
function GJ.giveTrophy(id)
local s = string.find(req("trophies/add-achieved/?trophy_id=" .. id, "dump", true, true), "SUCCESS") ~= nil
GJ.fetchAllTrophies(true)
return
end
function GJ.fetchTrophy(id)
local d = req("trophies/?trophy_id=" .. id, "keypair", true, true)
local t = {}
parseKeypair(d, function(k, v)
if k ~= "success" then t[k] = v end
end)
return t
end
function GJ.fetchTrophiesByStatus(achieved)
return handleTrophies("achieved=" .. (achieved and "true" or "false"))
end
function GJ.fetchAllTrophies(f)
if f then
GJ.trophies = handleTrophies("")
end
return GJ.trophies
end
-- scores
function GJ.addScore(score, desc, tableID, guestName, extraData)
local pu, pt, s = true, true, ""
if guestName then pu, pt = false, false, s .. "&guest=" .. escape(guestName) end
if extraData then s = s .. "&extra_data=" .. escape(extraData) end
if tableID then s = s .. "&table_id=" .. escape(tableID) end
return string.find(req("scores/add/?score=" .. escape(desc) .. "&sort=" .. score .. s, "dump", pu, pt), "SUCCESS") ~= nil
end
function GJ.fetchScores(limit, tableID)
local pu, pt, s = true, true, ""
if tableID then pu, pt, s = false, false, "&table_id=" .. escape(tableID) end
local d = req("scores/?limit=" .. limit .. s, "keypair", pu, pt)
local t, f = {}
parseKeypair(d, function(k, v)
if k ~= "success" then
if k == "score" then
f = {}
table.insert(t, f)
end
f[k] = v
end
end)
return t
end
function GJ.fetchTables()
local d = req("scores/tables/?", "keypair", false, false)
local t, f = {}
parseKeypair(d, function(k, v)
if k ~= "success" then
if k == "id" then
f = {}
table.insert(t, f)
end
f[k] = v
end
end)
return t
end
return GJ

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src/lib/gamejolt/new/md5.lua Normal file
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local md5 = {
_VERSION = "md5.lua 1.0.0",
_DESCRIPTION = "MD5 computation in Lua (5.1-3, LuaJIT)",
_URL = "https://github.com/kikito/md5.lua",
_LICENSE = [[
MIT LICENSE
Copyright (c) 2013 Enrique García Cota + Adam Baldwin + hanzao + Equi 4 Software
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
]]
}
-- bit lib implementions
local floor, abs, max = math.floor, math.abs, math.max
local char, byte, format, rep, sub =
string.char, string.byte, string.format, string.rep, string.sub
local bit_or, bit_and, bit_not, bit_xor, bit_rshift, bit_lshift
local ok, bit = pcall(require, 'bit')
if not ok then ok, bit = pcall(require, 'bit32') end
if ok then
bit_or, bit_and, bit_not, bit_xor = bit.bor, bit.band, bit.bnot, bit.bxor
bit_rshift, bit_lshift = bit.rshift, bit.lshift
else
local function check_int(n)
-- checking not float
if(n - floor(n) > 0) then
error("trying to use bitwise operation on non-integer!")
end
end
local function tbl2number(tbl)
local n = #tbl
local rslt = 0
local power = 1
for i = 1, n do
rslt = rslt + tbl[i]*power
power = power*2
end
return rslt
end
local function expand(tbl_m, tbl_n)
local big = {}
local small = {}
if(#tbl_m > #tbl_n) then
big = tbl_m
small = tbl_n
else
big = tbl_n
small = tbl_m
end
-- expand small
for i = #small + 1, #big do
small[i] = 0
end
end
local to_bits -- needs to be declared before bit_not
function bit_not(n)
local tbl = to_bits(n)
local size = max(#tbl, 32)
for i = 1, size do
if(tbl[i] == 1) then
tbl[i] = 0
else
tbl[i] = 1
end
end
return tbl2number(tbl)
end
-- defined as local above
to_bits = function (n)
check_int(n)
if(n < 0) then
-- negative
return to_bits(bit_not(abs(n)) + 1)
end
-- to bits table
local tbl = {}
local cnt = 1
while (n > 0) do
local last = math.mod(n,2)
if(last == 1) then
tbl[cnt] = 1
else
tbl[cnt] = 0
end
n = (n-last)/2
cnt = cnt + 1
end
return tbl
end
function bit_or(m, n)
local tbl_m = to_bits(m)
local tbl_n = to_bits(n)
expand(tbl_m, tbl_n)
local tbl = {}
local rslt = max(#tbl_m, #tbl_n)
for i = 1, rslt do
if(tbl_m[i]== 0 and tbl_n[i] == 0) then
tbl[i] = 0
else
tbl[i] = 1
end
end
return tbl2number(tbl)
end
function bit_and(m, n)
local tbl_m = to_bits(m)
local tbl_n = to_bits(n)
expand(tbl_m, tbl_n)
local tbl = {}
local rslt = max(#tbl_m, #tbl_n)
for i = 1, rslt do
if(tbl_m[i]== 0 or tbl_n[i] == 0) then
tbl[i] = 0
else
tbl[i] = 1
end
end
return tbl2number(tbl)
end
function bit_xor(m, n)
local tbl_m = to_bits(m)
local tbl_n = to_bits(n)
expand(tbl_m, tbl_n)
local tbl = {}
local rslt = max(#tbl_m, #tbl_n)
for i = 1, rslt do
if(tbl_m[i] ~= tbl_n[i]) then
tbl[i] = 1
else
tbl[i] = 0
end
end
return tbl2number(tbl)
end
function bit_rshift(n, bits)
check_int(n)
local high_bit = 0
if(n < 0) then
-- negative
n = bit_not(abs(n)) + 1
high_bit = 2147483648 -- 0x80000000
end
for i=1, bits do
n = n/2
n = bit_or(floor(n), high_bit)
end
return floor(n)
end
function bit_lshift(n, bits)
check_int(n)
if(n < 0) then
-- negative
n = bit_not(abs(n)) + 1
end
for i=1, bits do
n = n*2
end
return bit_and(n, 4294967295) -- 0xFFFFFFFF
end
end
-- convert little-endian 32-bit int to a 4-char string
local function lei2str(i)
local f=function (s) return char( bit_and( bit_rshift(i, s), 255)) end
return f(0)..f(8)..f(16)..f(24)
end
-- convert raw string to big-endian int
local function str2bei(s)
local v=0
for i=1, #s do
v = v * 256 + byte(s, i)
end
return v
end
-- convert raw string to little-endian int
local function str2lei(s)
local v=0
for i = #s,1,-1 do
v = v*256 + byte(s, i)
end
return v
end
-- cut up a string in little-endian ints of given size
local function cut_le_str(s,...)
local o, r = 1, {}
local args = {...}
for i=1, #args do
table.insert(r, str2lei(sub(s, o, o + args[i] - 1)))
o = o + args[i]
end
return r
end
local swap = function (w) return str2bei(lei2str(w)) end
local function hex2binaryaux(hexval)
return char(tonumber(hexval, 16))
end
local function hex2binary(hex)
local result, _ = hex:gsub('..', hex2binaryaux)
return result
end
-- An MD5 mplementation in Lua, requires bitlib (hacked to use LuaBit from above, ugh)
-- 10/02/2001 jcw@equi4.com
local FF = 0xffffffff
local CONSTS = {
0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391,
0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476
}
local f=function (x,y,z) return bit_or(bit_and(x,y),bit_and(-x-1,z)) end
local g=function (x,y,z) return bit_or(bit_and(x,z),bit_and(y,-z-1)) end
local h=function (x,y,z) return bit_xor(x,bit_xor(y,z)) end
local i=function (x,y,z) return bit_xor(y,bit_or(x,-z-1)) end
local z=function (f,a,b,c,d,x,s,ac)
a=bit_and(a+f(b,c,d)+x+ac,FF)
-- be *very* careful that left shift does not cause rounding!
return bit_or(bit_lshift(bit_and(a,bit_rshift(FF,s)),s),bit_rshift(a,32-s))+b
end
local function transform(A,B,C,D,X)
local a,b,c,d=A,B,C,D
local t=CONSTS
a=z(f,a,b,c,d,X[ 0], 7,t[ 1])
d=z(f,d,a,b,c,X[ 1],12,t[ 2])
c=z(f,c,d,a,b,X[ 2],17,t[ 3])
b=z(f,b,c,d,a,X[ 3],22,t[ 4])
a=z(f,a,b,c,d,X[ 4], 7,t[ 5])
d=z(f,d,a,b,c,X[ 5],12,t[ 6])
c=z(f,c,d,a,b,X[ 6],17,t[ 7])
b=z(f,b,c,d,a,X[ 7],22,t[ 8])
a=z(f,a,b,c,d,X[ 8], 7,t[ 9])
d=z(f,d,a,b,c,X[ 9],12,t[10])
c=z(f,c,d,a,b,X[10],17,t[11])
b=z(f,b,c,d,a,X[11],22,t[12])
a=z(f,a,b,c,d,X[12], 7,t[13])
d=z(f,d,a,b,c,X[13],12,t[14])
c=z(f,c,d,a,b,X[14],17,t[15])
b=z(f,b,c,d,a,X[15],22,t[16])
a=z(g,a,b,c,d,X[ 1], 5,t[17])
d=z(g,d,a,b,c,X[ 6], 9,t[18])
c=z(g,c,d,a,b,X[11],14,t[19])
b=z(g,b,c,d,a,X[ 0],20,t[20])
a=z(g,a,b,c,d,X[ 5], 5,t[21])
d=z(g,d,a,b,c,X[10], 9,t[22])
c=z(g,c,d,a,b,X[15],14,t[23])
b=z(g,b,c,d,a,X[ 4],20,t[24])
a=z(g,a,b,c,d,X[ 9], 5,t[25])
d=z(g,d,a,b,c,X[14], 9,t[26])
c=z(g,c,d,a,b,X[ 3],14,t[27])
b=z(g,b,c,d,a,X[ 8],20,t[28])
a=z(g,a,b,c,d,X[13], 5,t[29])
d=z(g,d,a,b,c,X[ 2], 9,t[30])
c=z(g,c,d,a,b,X[ 7],14,t[31])
b=z(g,b,c,d,a,X[12],20,t[32])
a=z(h,a,b,c,d,X[ 5], 4,t[33])
d=z(h,d,a,b,c,X[ 8],11,t[34])
c=z(h,c,d,a,b,X[11],16,t[35])
b=z(h,b,c,d,a,X[14],23,t[36])
a=z(h,a,b,c,d,X[ 1], 4,t[37])
d=z(h,d,a,b,c,X[ 4],11,t[38])
c=z(h,c,d,a,b,X[ 7],16,t[39])
b=z(h,b,c,d,a,X[10],23,t[40])
a=z(h,a,b,c,d,X[13], 4,t[41])
d=z(h,d,a,b,c,X[ 0],11,t[42])
c=z(h,c,d,a,b,X[ 3],16,t[43])
b=z(h,b,c,d,a,X[ 6],23,t[44])
a=z(h,a,b,c,d,X[ 9], 4,t[45])
d=z(h,d,a,b,c,X[12],11,t[46])
c=z(h,c,d,a,b,X[15],16,t[47])
b=z(h,b,c,d,a,X[ 2],23,t[48])
a=z(i,a,b,c,d,X[ 0], 6,t[49])
d=z(i,d,a,b,c,X[ 7],10,t[50])
c=z(i,c,d,a,b,X[14],15,t[51])
b=z(i,b,c,d,a,X[ 5],21,t[52])
a=z(i,a,b,c,d,X[12], 6,t[53])
d=z(i,d,a,b,c,X[ 3],10,t[54])
c=z(i,c,d,a,b,X[10],15,t[55])
b=z(i,b,c,d,a,X[ 1],21,t[56])
a=z(i,a,b,c,d,X[ 8], 6,t[57])
d=z(i,d,a,b,c,X[15],10,t[58])
c=z(i,c,d,a,b,X[ 6],15,t[59])
b=z(i,b,c,d,a,X[13],21,t[60])
a=z(i,a,b,c,d,X[ 4], 6,t[61])
d=z(i,d,a,b,c,X[11],10,t[62])
c=z(i,c,d,a,b,X[ 2],15,t[63])
b=z(i,b,c,d,a,X[ 9],21,t[64])
return A+a,B+b,C+c,D+d
end
----------------------------------------------------------------
function md5.sumhexa(s)
local msgLen = #s
local padLen = 56 - msgLen % 64
if msgLen % 64 > 56 then padLen = padLen + 64 end
if padLen == 0 then padLen = 64 end
s = s .. char(128) .. rep(char(0),padLen-1) .. lei2str(8*msgLen) .. lei2str(0)
assert(#s % 64 == 0)
local t = CONSTS
local a,b,c,d = t[65],t[66],t[67],t[68]
for i=1,#s,64 do
local X = cut_le_str(sub(s,i,i+63),4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4)
assert(#X == 16)
X[0] = table.remove(X,1) -- zero based!
a,b,c,d = transform(a,b,c,d,X)
end
return format("%08x%08x%08x%08x",swap(a),swap(b),swap(c),swap(d))
end
function md5.sum(s)
return hex2binary(md5.sumhexa(s))
end
return md5