Nested Looping use Regex python

Question

I want to ask.

url = [domaina.com/def, domainb.com/abc, domainc.com/]
payload = [abc, def, ghi]

how to call url and payload together using regex if match, for example:

domaina.com/abc
domaina.com/def

then

domainb.com/abc

domainb.com/def

import re
import csv
import collections

def log_file_reader(filename):

 f = open(filename, "r")
    #log = f.read()
    #payload = a.read() 
 for url in f:
  a = open("xss.txt", encoding='utf-8')
  for payload in a:
   #regex = r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}'
   ip_list = re.findall(payload, url)
   return ip_list
   #print(payload, url)

if __name__ == "__main__":
  log_file_reader('url')

What do you mean by call url and payload together using regex? Judging from your code, the expected result will be the list of url which matches the payload: domaina.com/def and domainb.com/abc, correct? — tshiono
– tshiono, Commented May 24, 2021 at 5:17
Yes, the expected results show a list of urls that match the existing payload — Riki Aji
– Riki Aji, Commented May 24, 2021 at 5:50
Thank you for the prompt feedback. I have posted an answer. I hope it will meet your requirement. — tshiono
– tshiono, Commented May 24, 2021 at 5:59

tshiono · Accepted Answer · 2021-05-24 05:58:16Z

2

Would you please try something like:

def log_file_reader(filename):
    # assuming files are already opened as f and a
    l = []
    for url in f:
        for payload in a:
            if re.search('/' + payload + '$', url):
                l.append(url)
    return l

With the provided examples, it will return:

['domaina.com/def', 'domainb.com/abc']

I have prepended / and appended $ to the string payload to avoid the possible partial match (e.g. ab or ef are given in the payload list).

answered May 24, 2021 at 5:58

tshiono

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