ail-framework/bin/Base64.py
2018-04-23 14:51:53 +02:00

101 lines
2.7 KiB
Python
Executable file

#!/usr/bin/env python3.5
# -*-coding:UTF-8 -*
"""
Base64 module
Dectect Base64, decode it and send to XXX for reprocess
"""
import time
import os
from pubsublogger import publisher
from Helper import Process
from packages import Paste
import re
import base64
from hashlib import sha1
import magic
def search_base64(content, message):
find = False
base64_list = re.findall(regex_base64, content)
if(len(base64_list) > 0):
for b64 in base64_list:
if len(b64) >= 40 :
decode = base64.b64decode(b64)
type = magic.from_buffer(decode, mime=True)
#print(type)
#print(decode)
find = True
save_base64_as_file(decode, type)
print('found {} '.format(type))
if(find):
publisher.warning('base64 decoded')
#Send to duplicate
p.populate_set_out(message, 'Duplicate')
#send to Browse_warning_paste
msg = ('base64;{}'.format(message))
p.populate_set_out( msg, 'alertHandler')
def save_base64_as_file(decode, type):
hash = sha1(decode).hexdigest()
filename = os.path.join(os.environ['AIL_HOME'],
p.config.get("Directories", "base64"), type, hash[:2], hash)
dirname = os.path.dirname(filename)
if not os.path.exists(dirname):
os.makedirs(dirname)
with open(filename, 'wb') as f:
f.write(decode)
if __name__ == '__main__':
# If you wish to use an other port of channel, do not forget to run a subscriber accordingly (see launch_logs.sh)
# Port of the redis instance used by pubsublogger
publisher.port = 6380
# Script is the default channel used for the modules.
publisher.channel = 'Script'
# Section name in bin/packages/modules.cfg
config_section = 'Base64'
# Setup the I/O queues
p = Process(config_section)
# Sent to the logging a description of the module
publisher.info("Base64 started")
regex_base64 = '(?:[A-Za-z0-9+/]{4}){2,}(?:[A-Za-z0-9+/]{2}[AEIMQUYcgkosw048]=|[A-Za-z0-9+/][AQgw]==)'
re.compile(regex_base64)
# Endless loop getting messages from the input queue
while True:
# Get one message from the input queue
message = p.get_from_set()
if message is None:
publisher.debug("{} queue is empty, waiting".format(config_section))
time.sleep(1)
continue
# Do something with the message from the queue
filename = message
paste = Paste.Paste(filename)
content = paste.get_p_content()
#print(filename)
search_base64(content,message)
# (Optional) Send that thing to the next queue
#p.populate_set_out(something_has_been_done)