iptv/M3U8/scrapers/utils/config.py

import asyncio
import json
import logging
import re
from collections.abc import Callable
from datetime import datetime
from pathlib import Path
from typing import Any

import httpx
import pytz
from playwright.async_api import Request, Playwright, Browser, BrowserContext

TZ = pytz.timezone("America/New_York")

now = datetime.now(TZ)

UA = (
    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
    "AppleWebKit/537.36 (KHTML, like Gecko) "
    "Chrome/134.0.0.0 Safari/537.36 Edg/134.0.0.0"
)

LOGOS = {
    "MLB": "https://i.gyazo.com/0fe7865ef2f06c9507791b24f04dbca8.png",
    "NBA": "https://i.gyazo.com/773c23570f095a5d549c23b9401d83f4.png",
    "NCAAF": "https://i.gyazo.com/ca63b40c86e757436de9d34d369b24f8.png",
    "NCAAB": "https://i.gyazo.com/ca63b40c86e757436de9d34d369b24f8.png",
    "NFL": "https://i.gyazo.com/fb4956d7a2fe54a1bac54cd81e1b3f11.png",
    "NHL": "https://i.gyazo.com/526607d4e886d5ed1fecca4bff3115e2.png",
    "WNBA": "https://i.gyazo.com/02d665a5704118d195dbcd5fa20d5462.png",
}

LOG_FMT = (
    "[%(asctime)s] "
    "%(levelname)-8s "
    "[%(name)s] "
    "%(message)-70s "
    "(%(filename)s:%(lineno)d)"
)

COLORS = {
    "DEBUG": "\033[37m",
    "INFO": "\033[32m",
    "WARNING": "\033[33m",
    "ERROR": "\033[31m",
    "CRITICAL": "\033[41m",
    "reset": "\033[0m",
}


class ColorFormatter(logging.Formatter):
    def format(self, record) -> str:
        color = COLORS.get(record.levelname, "")
        levelname = record.levelname
        record.levelname = f"{color}{levelname}{COLORS['reset']}"
        formatted = super().format(record)
        record.levelname = levelname
        return formatted


def get_logger(name: str | None = None) -> logging.Logger:
    if not name:
        name = Path(__file__).stem

    logger = logging.getLogger(name)

    if not logger.hasHandlers():
        handler = logging.StreamHandler()
        formatter = ColorFormatter(LOG_FMT, datefmt="%Y-%m-%d | %H:%M:%S")
        handler.setFormatter(formatter)
        logger.addHandler(handler)
        logger.setLevel(logging.INFO)

    return logger


def near_hr(dt: datetime) -> float:
    return dt.replace(minute=0, second=0, microsecond=0).timestamp()


def is_fresh(
    entry: dict,
    nearest_hr: bool,
    exp: int,
) -> bool:
    ts = entry.get("timestamp", 31496400)

    if nearest_hr:
        ts = near_hr(datetime.fromtimestamp(ts))

    return now.timestamp() - ts < exp


def load_cache(
    file: Path,
    exp: int | float,
    nearest_hr: bool = False,
    per_entry: bool = True,
) -> dict[str, dict[str, str | float]]:
    try:
        data: dict = json.loads(file.read_text(encoding="utf-8"))
    except (FileNotFoundError, json.JSONDecodeError):
        return {}

    if per_entry:
        return {k: v for k, v in data.items() if is_fresh(v, nearest_hr, exp)}

    ts = data.get("timestamp", 31496400)

    if nearest_hr:
        ts = near_hr(datetime.fromtimestamp(ts))

    return data if now.timestamp() - ts < exp else {}


async def safe_process_event(
    fn: Callable,
    url_num: int,
    timeout: int | float = 20,
    log: logging.Logger | None = None,
) -> Any | None:

    if not log:
        log = logging.getLogger(__name__)

    task = asyncio.create_task(fn())

    try:
        return await asyncio.wait_for(task, timeout=timeout)
    except asyncio.TimeoutError:
        log.warning(f"URL {url_num}) Timed out after {timeout}s, skipping event")

        task.cancel()

        try:
            await task
        except asyncio.CancelledError:
            pass
        except Exception as e:
            log.debug(f"URL {url_num}) Ignore exception after timeout: {e}")


async def check_status(client: httpx.AsyncClient, url: str) -> bool:
    try:
        r = await client.get(url)
        r.raise_for_status()
    except Exception:
        return False

    return r.status_code == 200


async def get_base(client: httpx.AsyncClient, mirrors: list[str]) -> str:
    tasks = [check_status(client, link) for link in mirrors]
    results = await asyncio.gather(*tasks)

    return [url for url, ok in zip(mirrors, results) if ok][0]


def capture_req(
    req: Request,
    captured: list[str],
    got_one: asyncio.Event,
) -> None:
    valid_m3u8 = re.compile(r"^(?!.*(amazonaws|knitcdn)).*\.m3u8")

    if valid_m3u8.search(req.url):
        captured.append(req.url)
        got_one.set()


async def firefox(
    playwright: Playwright, ignore_https_errors: bool = False
) -> tuple[Browser, BrowserContext]:
    browser = await playwright.firefox.launch(headless=True)

    context = await browser.new_context(
        user_agent=UA,
        viewport={"width": 1366, "height": 768},
        device_scale_factor=1,
        locale="en-US",
        timezone_id="America/New_York",
        color_scheme="dark",
        permissions=["geolocation"],
        extra_http_headers={
            "Accept-Language": "en-US,en;q=0.9",
            "Upgrade-Insecure-Requests": "1",
        },
        ignore_https_errors=ignore_https_errors,
    )

    await context.add_init_script(
        """
        Object.defineProperty(navigator, 'webdriver', {get: () => undefined});

        Object.defineProperty(navigator, 'languages', {
          get: () => ['en-US', 'en']
        });

        Object.defineProperty(navigator, 'plugins', {
          get: () => [1, 2, 3, 4]
        });

        const elementDescriptor = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'offsetHeight');
        Object.defineProperty(HTMLDivElement.prototype, 'offsetHeight', {
          ...elementDescriptor,
          get: function() {
            if (this.id === 'modernizr') { return 24; }
            return elementDescriptor.get.apply(this);
          }
        });

        Object.defineProperty(window.screen, 'width', { get: ()     => 1366 });
        Object.defineProperty(window.screen, 'height', { get: ()    => 768 });

        const getParameter = WebGLRenderingContext.prototype.   getParameter;
        WebGLRenderingContext.prototype.getParameter = function (param) {
          if (param === 37445) return "Intel Inc."; //  UNMASKED_VENDOR_WEBGL
          if (param === 37446) return "Intel Iris OpenGL    Engine"; // UNMASKED_RENDERER_WEBGL
          return getParameter.apply(this, [param]);
        };
        """
    )

    return browser, context