Ohittaa suomalaisten koulujen/kuntien julkisen Wifin Captive portalin automaattisesti tämän skriptin avulla

cportal_bypass.py

import requests
import urllib.parse as urlparse
import validators
import bs4


def meta_redirect(content):
    soup = bs4.BeautifulSoup(content, 'html.parser')

    result = soup.find("meta", attrs={"http-equiv": "Refresh"})
    if result:
        wait, text = result["content"].split(";")
        if text.strip().lower().startswith("url="):
            urlRd = text[4:]
            return urlRd
    return None


rqSession = requests.Session()
response = rqSession.get("http://detectportal.firefox.com", timeout=10)

textResp = response.text

metaRedir = False
redirUrl = None
if meta_redirect(textResp) is not None:
    metaRedir = True
    redirUrl = meta_redirect(textResp)

if response.history or metaRedir:
    if not metaRedir:
        print("Request was redirected")
        for resp in response.history:
            print(resp.status_code, resp.url)
        print("Final destination:")
        print(response.status_code, response.url)
        url = response.url
    else:
        print("Request needs to be redirected using meta tag")
        response = rqSession.get(redirUrl)
        print("Final destination:")
        print(response.status_code, response.url)
        url = response.url
    page = bs4.BeautifulSoup(response.text, 'html.parser')
    forms = page.find_all("form")
    if len(forms) > 0:
        form = forms[0]
        postUrl = url
        if form.has_attr("action"):
            actionUrl = form.attrs.get("action")
            if (actionUrl.startswith("/") and not actionUrl.startswith("//")) or validators.url(actionUrl) is not True:
                postUrl = urlparse.urljoin(url, actionUrl)
        print("Posting to " + postUrl)
        formInputs = form.find_all("input")
        body = []
        for formInput in formInputs:
            if formInput.has_attr("name"):
                name = formInput.attrs.get("name", "")
                value = ""
                if formInput.has_attr("value"):
                    value = formInput.attrs.get("value", "")
                body.append((name, value))
        print("Body:")
        print(body)
        returned = rqSession.post(postUrl, body, headers={
            'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:82.0) Gecko/20100101 Firefox/82.0'})
        if returned.status_code != 200:
            print("Got non-200 status code, still continuing")
        print(returned.text)
        print("Validating portal success")
        response = rqSession.get("http://detectportal.firefox.com")
        if "success" in response.text.strip():
            print("Ok")
        else:
            print("Failed!")
            print(response)
else:
    print("Request was not redirected")
    if "success" in textResp.strip():
        print("Ok")
    else:
        print("Failed!")
        print(textResp)