client/luascripts/mem_spiffs_readpwd.lua

   1 local getopt = require('getopt')
   2 local bin = require('bin')
   3 local ansicolors = require('ansicolors')
   4
   5 copyright = 'Copyright (c) 2019 Bogito. All rights reserved.'
   6 author = 'Bogito'
   7 version = 'v1.1.2'
   8 desc = [[
   9 This script will read the flash memory of RDV4 using SPIFFS and print the stored passwords.
  10 It was meant to be used as a help tool after using the BogRun standalone mode.
  11 ]]
  12 example = [[
  13     -- This will read the hf_bog.log file in SPIFFS and print the stored passwords
  14     script run mem_spiffs_readpwd
  15
  16     -- This will read the other.log file in SPIFFS and print the stored passwords
  17     script run mem_spiffs_readpwd -f other.log
  18
  19     -- This will delete the hf_bog.log file from SPIFFS
  20     script run mem_spiffs_readpwd -r
  21 ]]
  22 usage = [[
  23     script run mem_spiffs_readpwd [-h] [-f <filename>] [-r]
  24 ]]
  25 arguments = [[
  26     -h              :  this help
  27     -f <filename>   :  filename in SPIFFS
  28     -r              :  delete filename from SPIFFS
  29 ]]
  30 ---
  31 -- This is only meant to be used when errors occur
  32 local function oops(err)
  33     print('ERROR:', err)
  34     core.clearCommandBuffer()
  35     return nil, err
  36 end
  37 ---
  38 -- Usage help
  39 local function help()
  40     print(copyright)
  41     print(author)
  42     print(version)
  43     print(desc)
  44     print(ansicolors.cyan..'Usage'..ansicolors.reset)
  45     print(usage)
  46     print(ansicolors.cyan..'Arguments'..ansicolors.reset)
  47     print(arguments)
  48     print(ansicolors.cyan..'Example usage'..ansicolors.reset)
  49     print(example)
  50 end
  51 ---
  52 -- The main entry point
  53 local function main(args)
  54
  55     print( string.rep('--',20) )
  56     print('Read passwords stored in memory (SPIFFS)')
  57     print( string.rep('--',20) )
  58     print()
  59
  60     local data, length, err, removeflag
  61     local filename = 'hf_bog.log'
  62     local keylength = 4
  63
  64     for o, a in getopt.getopt(args, 'rf:h') do
  65
  66         -- help
  67         if o == 'h' then return help() end
  68
  69         -- offset
  70         if o == 'f' then filename = a end
  71
  72         -- remove
  73         if o == 'r' then removeflag = true end
  74
  75     end
  76
  77     if removeflag then
  78         print('Deleting file '..filename.. ' from SPIFFS if exists')
  79         core.console("mem spiffs remove -f " ..filename)
  80         return
  81     end
  82
  83     data, length, err = core.GetFromFlashMemSpiffs(filename)
  84     if data == nil then return oops('Problem while reading file from SPIFFS') end
  85
  86     --print('Filename', filename)
  87     --print('Filesize (B)', length)
  88
  89     _, s = bin.unpack('H'..length, data)
  90
  91     local cnt = 0, i
  92     for i = 1, length/keylength do
  93         key  = string.sub(s, (i-1)*8+1, i*8)
  94         print(string.format('[%02d] %s',i, key))
  95         cnt = cnt + 1
  96     end
  97     print( string.rep('--',20) )
  98     print( ('[+] found %d passwords'):format(cnt))
  99
 100 end
 101
 102 main(args)