#!/usr/bin/python3
import sys
import os
import base64
import json
import datetime
import pytz

# Add parent directory to path for o11 import
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import o11

from bs4 import BeautifulSoup
from pywidevine.cdm import Cdm
from pywidevine.device import Device
from pywidevine.pssh import PSSH

# Parse command line parameters
user = o11.parse_params(sys.argv, 'user')
password = o11.parse_params(sys.argv, 'password')
device = o11.parse_params(sys.argv, 'device')
pin = o11.parse_params(sys.argv, 'pin')

id = o11.parse_params(sys.argv, 'id')
action = o11.parse_params(sys.argv, 'action')

bind = o11.parse_params(sys.argv, 'bind')
proxy = o11.parse_params(sys.argv, 'proxy')
doh = o11.parse_params(sys.argv, 'doh')
worker = o11.parse_params(sys.argv, 'worker')

cdm = o11.parse_params(sys.argv, 'cdm')
drm = o11.parse_params(sys.argv, 'drm')
kid = o11.parse_params(sys.argv, 'kid')
pssh = o11.parse_params(sys.argv, 'pssh')
challenge = o11.parse_params(sys.argv, 'challenge')

heartbeaturl = o11.parse_params(sys.argv, 'heartbeaturl')
heartbeatparams = o11.parse_params(sys.argv, 'heartbeatparams')

# Session setup
o11Session = o11.session(bind=bind, proxy=proxy, worker=worker)
req = o11Session.get_session()
if doh != "":
    o11.dns(doh)

if challenge == "cert":
    challenge = "CAQ="

# Configuration
WVD_PATH = './WVD.wvd'
authFile = '/AstroGo_pickled_session.txt'
SCRIPT_DIR = os.path.abspath(os.path.dirname(__file__))

USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36'

headers = {
    'Accept': 'application/json, text/plain, */*',
    'Origin': 'https://astrogo.astro.com.my',
    'Referer': 'https://astrogo.astro.com.my/',
    'User-Agent': USER_AGENT,
}

token = ''

def get_auth():
    try:
        with open(SCRIPT_DIR + authFile, 'r') as f:
            return f.read().strip()
    except:
        return None

def save_auth(pickled_session):
    with open(SCRIPT_DIR + authFile, 'w') as f:
        f.write(pickled_session)

def do_refresh(pickled_session):
    cookies = {'browser_pickled_session': pickled_session}
    refresh_headers = {
        'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
        'Referer': 'https://astrogo.astro.com.my/',
        'User-Agent': USER_AGENT,
    }
    params = {'client_id': 'browser', 'state': 'bootup', 'redirect_uri': 'https://astrogo.astro.com.my', 'response_type': 'token', 'prompt': 'none'}
    response = req.get('https://sg-sg-sg.astro.com.my:9443/oauth2/authorize', params=params, cookies=cookies, headers=refresh_headers, allow_redirects=False)
    response.raise_for_status()
    if 'access_token' not in response.headers.get('Location', ''):
        raise Exception('Token request failed')
    return response.headers['Location'].split('access_token=')[-1].split('&')[0]

def login():
    global token
    print("logging in...", file=sys.stderr)
    
    pickled_session = get_auth()
    if not pickled_session:
        print("No pickled_session found. Please add AstroGo browser_pickled_session to auth file.", file=sys.stderr)
        save_auth('')
        sys.exit(1)
    
    try:
        token = do_refresh(pickled_session)
        print("logged in successfully", file=sys.stderr)
        return token
    except Exception as e:
        print(f"Login failed: {e}", file=sys.stderr)
        sys.exit(1)

def get_token():
    global token
    if token:
        return token
    return login()

def get_pssh_from_mpd(url):
    response = req.get(url, headers={'User-Agent': USER_AGENT})
    content_protections = BeautifulSoup(response.content, features="xml").findAll('ContentProtection')
    for cp in content_protections:
        if cp.get('schemeIdUri', '').lower() == 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed':
            pssh_elem = cp.find('cenc:pssh')
            if pssh_elem:
                return pssh_elem.text
    return None

def get_single(channel_id):
    single_headers = {**headers, 'Authorization': 'Bearer ' + token}
    response = req.post('https://sg-sg-sg.astro.com.my:9443/ctap/r1.6.0/devices/me/playsessions', params={'channelId': channel_id}, headers=single_headers)
    try:
        data = response.json()
        return data['_links']['playUrl']['href'], data['drmProperties']['blob'], data['_links']['tearDown']['href']
    except:
        return None, None, None

def do_teardown(url):
    teardown_headers = {**headers, 'Authorization': 'Bearer ' + token}
    req.delete('https://sg-sg-sg.astro.com.my:9443/ctap/r1.6.0' + url.split('?')[0], headers=teardown_headers)

def do_cdm_internal(challenge_b64, lic_data):
    lic_headers = {
        'Accept': '*/*',
        'Origin': 'https://astrogo.astro.com.my',
        'Referer': 'https://astrogo.astro.com.my/',
        'User-Agent': USER_AGENT,
        'authorization': 'Bearer ' + token,
        'content-type': 'application/json',
    }
    lic_parts = lic_data.split('&')
    json_data = {
        'contentID': lic_parts[1].split('AssetId=')[-1],
        'contentType': 2,
        'authorizationToken': lic_parts[2].split('AuthToken=')[-1],
        'authorizationTokenType': '1',
        'licenseChallenge': challenge_b64,
        'playbackSessionCookie': None,
    }
    response = req.post('https://sg-sg-sg.astro.com.my:9443/vgemultidrm/v1/widevine/license', headers=lic_headers, json=json_data)
    try:
        data = response.json()
        return data['licenseData'][0]
    except:
        return None

def do_cdm_external(pssh_b64, lic_data):
    try:
        pssh_obj = PSSH(pssh_b64)
        device_obj = Device.load(WVD_PATH)
        cdm_obj = Cdm.from_device(device_obj)
        session_id = cdm_obj.open()
        challenge_data = cdm_obj.get_license_challenge(session_id, pssh_obj)
        
        lic_headers = {
            'Accept': '*/*',
            'Origin': 'https://astrogo.astro.com.my',
            'Referer': 'https://astrogo.astro.com.my/',
            'User-Agent': USER_AGENT,
            'authorization': 'Bearer ' + token,
            'content-type': 'application/json',
        }
        lic_parts = lic_data.split('&')
        json_data = {
            'contentID': lic_parts[1].split('AssetId=')[-1],
            'contentType': 2,
            'authorizationToken': lic_parts[2].split('AuthToken=')[-1],
            'authorizationTokenType': '1',
            'licenseChallenge': base64.b64encode(challenge_data).decode(),
            'playbackSessionCookie': None,
        }
        licence = req.post('https://sg-sg-sg.astro.com.my:9443/vgemultidrm/v1/widevine/license', headers=lic_headers, json=json_data)
        data = licence.json()
        cdm_obj.parse_license(session_id, base64.b64decode(data['licenseData'][0]))
        keys = []
        for key in cdm_obj.get_keys(session_id):
            if key.type != 'SIGNING':
                keys.append(f"{key.kid.hex}:{key.key.hex()}")
        cdm_obj.close(session_id)
        return keys
    except Exception as e:
        print(f'CDM external failed: {e}', file=sys.stderr)
        return None

def do_action():
    get_token()
    
    if action == "login":
        login()
        sys.exit()
    
    if action == "channels":
        output = {'Channels': []}
        ch_headers = {**headers, 'Authorization': 'Bearer ' + token}
        response = req.get('https://sg-sg-sg.astro.com.my:9443/ctap/r1.6.0/shared/channels?clientToken=v:1!r:80000!ur:POSTPAID!community:Malaysia%20Live!t:k!dt:PC!f:Astro_unmanaged!pd:CHROME-FF!pt:Adults', headers=ch_headers)
        try:
            data = response.json()
            for ch in data.get('channels', []):
                channel = {
                    'Name': ch.get('name', 'Unknown'),
                    'Mode': 'live',
                    'SessionManifest': True,
                    'ManifestScript': f"id={ch.get('id', '')}",
                    'CdmType': 'widevine',
                    'UseCdm': True,
                    'Cdm': f"id={ch.get('id', '')}",
                    'Video': 'best',
                    'OnDemand': True,
                    'SpeedUp': True,
                }
                output['Channels'].append(channel)
            print(json.dumps(output, indent=2))
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    elif action == "events":
        output = {'Events': []}
        print(json.dumps(output, indent=2))
    
    elif action == "heartbeat":
        sys.exit()
    
    elif action == "manifest":
        try:
            channel_id = id
            video_url, lic_data, teardown_url = get_single(channel_id)
            if not video_url:
                return "error"
            
            do_teardown(teardown_url)
            
            output = {
                "Cdn": [{"Name": "default", "ManifestUrl": video_url}],
                "ManifestUrl": video_url,
                "Headers": {"Manifest": {'User-Agent': USER_AGENT}, "Media": {'User-Agent': USER_AGENT}},
                "Heartbeat": {"Url": '', "Params": '', "PeriodMs": 5*60*1000},
                "LicenseData": lic_data
            }
            print(json.dumps(output))
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    elif action == "cdm" and cdm == "internal":
        try:
            channel_id = id
            _, lic_data, teardown_url = get_single(channel_id)
            if lic_data:
                do_teardown(teardown_url)
                result = do_cdm_internal(challenge, lic_data)
                if result:
                    print(result)
                else:
                    return "error"
            else:
                return "error"
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    elif action == "cdm" and cdm == "external":
        try:
            channel_id = id
            video_url, lic_data, teardown_url = get_single(channel_id)
            if lic_data:
                do_teardown(teardown_url)
                pssh_to_use = pssh if pssh else get_pssh_from_mpd(video_url)
                if pssh_to_use:
                    keys = do_cdm_external(pssh_to_use, lic_data)
                    if keys:
                        for key in keys:
                            print(key)
                    else:
                        return "error"
                else:
                    return "error"
            else:
                return "error"
        except Exception as e:
            print(f"Error: {e}", file=sys.stderr)
            return "error"
    
    else:
        print("invalid action: " + action, file=sys.stderr)

if do_action() == "error":
    login()
    do_action()