Decode AngularJS File

angular-decode.py

#!/bin/env python3

import sys
import string
import re
import jsbeautifier

if len(sys.argv) != 2:
	print ("Use: {} <angular-js-file>".format(sys.argv[0]))
	sys.exit(0)

js_file = sys.argv[1]

with open(js_file) as f:
    data = f.read()

data = jsbeautifier.beautify(data)
data = re.sub("\\\\x[a-f0-9][a-f0-9]", lambda m: bytes.fromhex(m.group()[2:]).decode("iso-8859-1"), data)
data = re.sub("\\\\u00[a-f0-9][a-f0-9]", lambda m: bytes.fromhex(m.group()[4:]).decode('iso-8859-1'), data)

with open(js_file, "w") as f:
	f.write(data)

To use it:

for js in unpack/base/assets/www/app/assets/js/*.js; do
   echo "> $js";
   python3 decode.py "$js";
done;

It replaces the original file, so make sure to backup it before running it. ;-)