python unpacker can not handle if radix given as [] and not as a number

[swan46]

Description

python unpacker can not handle if radix given as [] and not as a number
jsbeautifier.org handles this well.

Input

eval(function(p,a,c,k,e,r){e=function(c){return c.toString(36)};if('0'.replace(0,e)==0){while(c--)r[e(c)]=k[c];k=[function(e){return r[e]||e}];e=function(){return'[0-9ab]'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\b'+e(c)+'\b','g'),k[c]);return p}('$(5).a(6(){ $('.8').0(1); $('.b').0(4); $('.9').0(2); $('.7').0(3)})',[],12,'html|52136|555|65103|8088|document|function|r542c|r8ce6|rb0de|ready|rfab0'.split('|'),0,{}))

Expected Output

$(document).ready(function() {
$('.r8ce6').html(52136); $('.rfab0').html(8088); $('.rb0de').html(555); $('.r542c').html(65103)})

Actual Output

Beautified version of the input code, packing remains unacknowledged.

Steps to Reproduce

Environment

Linux mint 18

Settings

Example:

{
    "indent_size": 4,
    "indent_char": " ",
    "indent_level": 0,
    "indent_with_tabs": false,
    "preserve_newlines": true,
    "max_preserve_newlines": 10,
    "jslint_happy": false,
    "space_after_anon_function": false,
    "brace_style": "collapse,preserve-inline",
    "keep_array_indentation": false,
    "keep_function_indentation": false,
    "space_before_conditional": true,
    "break_chained_methods": false,
    "eval_code": false,
    "unescape_strings": false,
    "wrap_line_length": 0
}

[swan46]

Created a fix in packer.py:

def _filterargs(source):
"""Juice from a source file the four args needed by decoder."""
juicers = [ (r"}('(.*)', *(\d+|[]), *(\d+), '(.)'.split('|'), (\d+), (.)))"),
(r"}('(.)', *(\d+|[]), *(\d+), '(.)'.split('|')"),
]
for juicer in juicers:
args = re.search(juicer, source, re.DOTALL)
if args:
a = args.groups()
if a[1] == "[]" :
a = list(a)
a[1] = 62
a = tuple(a)
try:
return a[0], a[3].split('|'), int(a[1]), int(a[2])
except ValueError:
raise UnpackingError('Corrupted p.a.c.k.e.r. data.')

Also added a test sequence to test-packer to test this case:
str = "eval(function(p,a,c,k,e,r){e=function(c){return c.toString(36)};if('0'.replace(0,e)==0){while(c--)r[e(c)]=k[c];k=[function(e){return r[e]||e}];e=function(){return'[0-9ab]'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\b'+e(c)+'\b','g'),k[c]);return p}('$(5).a(6(){ $('.8').0(1); $('.b').0(4); $('.9').0(2); $('.7').0(3)})',[],12,'html|52136|555|65103|8088|document|function|r542c|r8ce6|rb0de|ready|rfab0'.split('|'),0,{}))"
expected = "$(document).ready(function() {\n $('.r8ce6').html(52136);\n $('.rfab0').html(8088);\n $('.rb0de').html(555);\n $('.r542c').html(65103)\n})"

res = test_str(str, expected)

Please update packer.py and test-packer.py like above listed. Thank you.

[bitwiseman]

@swan46
Your last pull request was great. Please PR.

[swan46]

Added a PR.