#!/usr/bin/env python3
import requests
import sys
import re
from bs4 import BeautifulSoup
import mimetypes
import os
from libsixel.encoder import Encoder

URL = "https://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc"
s = requests.Session()
s.headers[
    "User-Agent"
] = "Mozilla/5.0 (X11; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
s.headers["Referer"] = "https://boards.4chan.org/"

r = s.get(URL)
board = input("Enter board: ")
thread = input("Enter thread: ")
print("Enter reply (CTRL+D/EOF when finished): ")
reply = sys.stdin.read()
file = input("Upload file? [Y/N]: ")[0].lower()
soup = BeautifulSoup(r.content, "html.parser")
msg = soup.select(".fbc-imageselect-message-text > div")
print("".join(msg[-1].text))
img = "https://www.google.com%s" % soup.select(".fbc-imageselect-payload")[0]["src"]
c = soup.select(".fbc-imageselect-payload")[0]["src"].split("=")[1].split("&")[-2]
encoder = Encoder()
with open("captcha.png", "wb") as cap:
    cap.write(s.get(img).content)
encoder.encode("captcha.png")
os.remove("captcha.png")
data = input("Selection: ")
data = re.findall("\d", data)
data = [int(d) - 1 for d in data]
r = s.post(URL, data={"c": c, "response": data})
soup = BeautifulSoup(r.content, "html.parser")
c = soup.select(".fbc-verification-token > textarea")[0].get_text()
try:
    r = s.get("https://boards.4chan.org/%s/thread/%s" % (board, thread))
    soup = BeautifulSoup(r.content, "html.parser")
    size = soup.select("script")[0].contents[0].split(",")[4].split("=")[-1].strip()
    data = {
        "MAX_FILE_SIZE": size,
        "mode": "regist",
        "pwd": "",
        "resto": thread,
        "name": "",
        "email": "",
        "com": reply,
        "g-recaptcha-response": c if c is not None else "",
    }
    if file == "y":
        path = input("Path to file: ")
        r = s.post(
            "https://sys.4chan.org/%s/post" % board,
            data=data,
            files={
                "upfile": (
                    os.path.basename(path),
                    open(path, "rb"),
                    mimetypes.guess_type(path, strict=False)[0],
                )
            },
        )
    else:
        r = s.post(
            "https://sys.4chan.org/%s/post" % board,
            data=data,
            files={"upfile": ("", "", "")},
        )
except:
    print("You failed the captcha")