patch_eleme.py

import re
import sys

HEADER = '''
var hpagent = require('hpagent')
var agentOpt = {
  keepAlive: true,
  keepAliveMsecs: 2000,
  maxSockets: Infinity,
  maxFreeSockets: 256,
  proxy: process.env.HTTP_PROXY
}
var __got = require("got")
var _got_new = __got.extend({
    agent: {
        http: new hpagent.HttpProxyAgent(Object.assign({}, agentOpt)),
        https: new hpagent.HttpsProxyAgent(Object.assign({}, agentOpt)),
    }
})
var _require = require
require = (a) => {
    if (a == 'got') return _got_new;
    return _require(a)
}

function getMin(a, b) {
    return a < b ? a : b
}
'''

fn = sys.argv[1]
with open(fn) as f:
    content = f.read()

#newcontent = re.sub(r"(\['\\x69\\x64'\])=.*?\+'\\x38',(.*?)=0x3e8", r"\1='178002',\2=950", content)
#assert '178002' in newcontent or newcontent != content
content = content.replace(r"_0x5cae1d[_0x32515a(0x1d7)+'\x6e'](_0x3c2f43", r"getMin(_0x3c2f43")


IDEN_RE = r'_0x[0-9a-f]+?'
#STR_RE = r'[_x0-9a-f()+]+?'
STR_RE = r'[^\[\]]+?'

extraObj, mainReqObj = re.findall(r'(%s)\[%s\]=0x3e8;const (%s)=\{\};' % (IDEN_RE, STR_RE, IDEN_RE), content)[0]

newcontent = re.sub(r'(%s\[%s\]=%s);' % (mainReqObj, STR_RE, extraObj), r"\1;%s['costFoodiePea']=950;%s['supplyInst']='43002|178002';" % (extraObj, mainReqObj), content)
assert newcontent != content
content = newcontent


if True:
    newcontent = newcontent.replace(
        '*/\n', 
        #"*/\nvar bootstrap = require('global-agent').bootstrap; bootstrap();\n"
        "*/\n" + HEADER
    )

with open(fn, 'w') as f:
    f.write(newcontent)