From 6742c089b12e1ab10f61932b3ced3fac6e03ca30 Mon Sep 17 00:00:00 2001 From: "martin.holst@gmail.com" Date: Sat, 19 Oct 2013 20:18:50 +0000 Subject: [PATCH] Changes to how dumping is performed, now utilises a library. This is in preparation for a more generic dumping of different types of cards. Also added functionality to html-dump .eml-files --- client/lualibs/html_dumplib.lua | 123 ++++++++++++++++++++++++++++++++ client/scripts/htmldump.lua | 46 ++---------- 2 files changed, 127 insertions(+), 42 deletions(-) create mode 100644 client/lualibs/html_dumplib.lua diff --git a/client/lualibs/html_dumplib.lua b/client/lualibs/html_dumplib.lua new file mode 100644 index 00000000..d2aee33b --- /dev/null +++ b/client/lualibs/html_dumplib.lua @@ -0,0 +1,123 @@ +bin = require('bin') + + +------------------------------- +-- Some utilities +------------------------------- + +--- +-- A debug printout-function +local function dbg(args) + if DEBUG then + print("###", args) + end +end +--- +-- This is only meant to be used when errors occur +local function oops(err) + print("ERROR: ",err) +end + +local function save_HTML(javascript, filename) + + -- Read the HTML-skel file + local skel = require("htmlskel") + html = skel.getHTML(javascript); + + -- Open the output file + + local outfile = io.open(filename, "w") + if outfile == nil then + return oops("Could not write to file ", filename) + end + -- Write the data into it + outfile:write(html) + io.close(outfile) + + -- Done + return filename + +end + + + +local function convert_ascii_dump_to_JS(infile) + local t = infile:read("*all") + + local output = "["; + for line in string.gmatch(t, "[^\n]+") do + output = output .. "'"..line.."',\n" + end + output = output .. "]" + return output +end + + +local function convert_binary_dump_to_JS(infile, blockLen) + local bindata = infile:read("*all") + len = string.len(bindata) + + if len % blockLen ~= 0 then + return oops(("Bad data, length (%d) should be a multiple of blocklen (%d)"):format(len, blockLen)) + end + + local _,hex = bin.unpack(("H%d"):format(len),bindata) + + -- Now that we've converted binary data into hex, we doubled the size. + -- One byte, like 0xDE is now + -- the characters 'D' and 'E' : one byte each. + -- Thus: + blockLen = blockLen * 2 + + local js,i = "["; + for i = 1, string.len(hex),blockLen do + js = js .."'" ..string.sub(hex,i,i+blockLen -1).."',\n" + end + js = js .. "]" + return js +end + +--- +-- Converts a .eml-file into a HTML/Javascript file. +-- @param input the file to convert +-- @param output the file to write to +-- @return the name of the new file. +local function convert_eml_to_html(input, output) + input = input or 'dumpdata.eml' + output = output or input .. 'html' + + local infile = io.open(input, "r") + if infile == nil then + return oops("Could not read file ", input) + end + + -- Read file, get JS + local javascript = convert_ascii_dump_to_JS(infile) + io.close(infile) + return save_HTML(javascript, output ) +end + +--- Converts a binary dump into HTML/Javascript file +-- @param input the file containing the dump (defaults to dumpdata.bin) +-- @param output the file to write to +-- @param blockLen, the length of each block. Defaults to 16 bytes +local function convert_bin_to_html(input, output, blockLen) + input = input or 'dumpdata.bin' + blockLen = blockLen or 16 + output = output or input .. 'html' + + local infile = io.open(input, "r") + if infile == nil then + return oops("Could not read file ", input) + end + -- Read file, get JS + local javascript = convert_binary_dump_to_JS(infile, blockLen) + io.close(infile) + + return save_HTML(javascript, output ) +end + +return { + convert_bin_to_html = convert_bin_to_html, + convert_eml_to_html = convert_eml_to_html, +} diff --git a/client/scripts/htmldump.lua b/client/scripts/htmldump.lua index e6c1393b..d14f8819 100644 --- a/client/scripts/htmldump.lua +++ b/client/scripts/htmldump.lua @@ -2,6 +2,7 @@ -- Have a look there for further details getopt = require('getopt') bin = require('bin') +dumplib = require('html_dumplib') example = "script run htmldump -o mifarecard_foo.html" author = "Martin Holst Swende" @@ -43,26 +44,6 @@ function help() print(example) end -local function readdump(infile) - t = infile:read("*all") - --print(string.len(t)) - len = string.len(t) - local len,hex = bin.unpack(("H%d"):format(len),t) - --print(len,hex) - return hex -end -local function convert_to_js(hexdata) - if string.len(hexdata) % 32 ~= 0 then - return oops(("Bad data, length should be a multiple of 32 (was %d)"):format(string.len(hexdata))) - end - local js,i = "["; - for i = 1, string.len(hexdata),32 do - js = js .."'" ..string.sub(hexdata,i,i+31).."',\n" - end - js = js .. "]" - return js -end - local function main(args) local input = "dumpdata.bin" @@ -72,31 +53,12 @@ local function main(args) if o == "i" then input = a end if o == "o" then output = a end end - -- Validate the parameters - - local infile = io.open(input, "r") - if infile == nil then - return oops("Could not read file ", input) - end - --lokal skel = require("skel") - local dumpdata = readdump(infile) - io.close(infile) + local filename, err = dumplib.convert_bin_to_html(input,output,16) + if err then return oops(err) end - local js_code = convert_to_js(dumpdata) - --print(js_code) - local skel = require("htmlskel") - html = skel.getHTML(js_code); - - local outfile = io.open(output, "w") - if outfile == nil then - return oops("Could not write to file ", output) - end - outfile:write(html) - io.close(outfile) - print(("Wrote a HTML dump to the file %s"):format(output)) + print(("Wrote a HTML dump to the file %s"):format(filename)) end - --[[ In the future, we may implement so that scripts are invoked directly into a 'main' function, instead of being executed blindly. For future