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

# 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 = '/FizzTV_auth.json'
SCRIPT_DIR = os.path.abspath(os.path.dirname(__file__))

USER_AGENT = 'Dalvik/2.1.0 (Linux; U; Android 9; SM-G955F Build/PPR1.180610.011)'

headers = {
    'Content-Type': 'application/json; charset=UTF-8',
    'Accept-Encoding': 'gzip',
    'User-Agent': USER_AGENT
}

session_id = ''

def get_auth():
    try:
        return json.load(open(SCRIPT_DIR + authFile))
    except:
        return None

def save_auth(auth_data):
    json.dump(auth_data, open(SCRIPT_DIR + authFile, 'w'), indent=2)

def do_refresh(refresh_token):
    json_data = {'cc': {'clientCredentials': {'StbMacAddress': secrets.token_hex(8)}, 'appSettings': {'appName': 'F-GOOGLE-PLAY-MOBILE', 'siteID': 176}}, 'RefreshToken': refresh_token}
    response = req.post('https://a2.vmedia.ca/api/client/login/okta', headers=headers, json=json_data)
    data = response.json()
    return data['clientCredentials']['sessionID'], data['RefreshToken']

def login():
    global session_id
    print("logging in...", file=sys.stderr)
    
    auth = get_auth()
    if not auth or 'refresh_token' not in auth:
        print("No auth found. Please add FizzTV refresh_token to auth file.", file=sys.stderr)
        save_auth({'refresh_token': ''})
        sys.exit(1)
    
    try:
        sid, new_refresh = do_refresh(auth['refresh_token'])
        save_auth({'refresh_token': new_refresh})
        session_id = sid
        print("logged in successfully", file=sys.stderr)
        return sid
    except Exception as e:
        print(f"Login failed: {e}", file=sys.stderr)
        sys.exit(1)

def get_session_id():
    global session_id
    if session_id:
        return session_id
    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')
    pssh_val = None
    kid_val = None
    for cp in content_protections:
        if not kid_val:
            kid_val = cp.get('cenc:default_KID')
        if not pssh_val and cp.get('schemeIdUri', '').lower() == 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed':
            pssh_elem = cp.find('cenc:pssh')
            if pssh_elem:
                pssh_val = pssh_elem.text
    return pssh_val, kid_val

def get_single(channel_id):
    json_data = {'sessionID': session_id, 'mediaRequest': {'item': {'contentType': '4', 'id': channel_id}, 'IsRestart': True}}
    response = req.post('https://a2.vmedia.ca/api/media/restartStream', headers=headers, json=json_data)
    try:
        data = response.json()
        lic_token = data.get('Drm', {}).get('Token')
        return data['URL'], lic_token
    except:
        return None, None

def do_cdm_internal(challenge_b64, kid_val, lic_token):
    lic_headers = {'vuplay-version': 'vudrm-widevine Android v0.2.0 (91)', 'Content-Type': 'application/json', 'User-Agent': USER_AGENT, 'Host': 'widevine-proxy.drm.technology', 'Connection': 'Keep-Alive', 'Accept-Encoding': 'gzip'}
    json_data = {'token': lic_token, 'drm_info': list(base64.b64decode(challenge_b64)), 'kid': kid_val}
    response = req.post('https://widevine-proxy.drm.technology/proxy', headers=lic_headers, json=json_data)
    response_b64 = str(base64.b64encode(response.content), 'ascii')
    if response_b64.startswith('CA'):
        return response_b64
    return None

def do_cdm_external(pssh_b64, kid_val, lic_token):
    try:
        pssh_obj = PSSH(pssh_b64)
        device_obj = Device.load(WVD_PATH)
        cdm_obj = Cdm.from_device(device_obj)
        sess_id = cdm_obj.open()
        challenge_data = cdm_obj.get_license_challenge(sess_id, pssh_obj)
        lic_headers = {'vuplay-version': 'vudrm-widevine Android v0.2.0 (91)', 'Content-Type': 'application/json', 'User-Agent': USER_AGENT, 'Host': 'widevine-proxy.drm.technology', 'Connection': 'Keep-Alive', 'Accept-Encoding': 'gzip'}
        json_data = {'token': lic_token, 'drm_info': list(challenge_data), 'kid': kid_val}
        licence = req.post('https://widevine-proxy.drm.technology/proxy', headers=lic_headers, json=json_data)
        cdm_obj.parse_license(sess_id, licence.content)
        keys = [f"{key.kid.hex}:{key.key.hex()}" for key in cdm_obj.get_keys(sess_id) if key.type != 'SIGNING']
        cdm_obj.close(sess_id)
        return keys
    except Exception as e:
        print(f'CDM external failed: {e}', file=sys.stderr)
        return None

def do_action():
    get_session_id()
    
    if action == "login":
        login()
        sys.exit()
    
    if action == "channels":
        output = {'Channels': []}
        json_data = {'request': {'type': '4', 'filter': {'contentType': '4', 'availableOnly': True, 'HasImagesOnly': False}, 'paging': {'itemsOnPage': 1000, 'pageNumber': 1}, 'utcTime': True}, 'sessionID': session_id}
        response = req.post('https://a2.vmedia.ca/api/channel/client', headers=headers, json=json_data)
        try:
            data = response.json()
            for ch in data.get('items', []):
                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_token = get_single(channel_id)
            if not video_url:
                return "error"
            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},
                "LicenseToken": lic_token
            }
            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
            video_url, lic_token = get_single(channel_id)
            if video_url and lic_token:
                pssh_val, kid_val = get_pssh_from_mpd(video_url)
                if pssh_val and kid_val:
                    result = do_cdm_internal(challenge, kid_val, lic_token)
                    if result:
                        print(result)
                    else:
                        return "error"
                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_token = get_single(channel_id)
            if video_url and lic_token:
                pssh_val, kid_val = get_pssh_from_mpd(video_url)
                if pssh_val and kid_val:
                    keys = do_cdm_external(pssh_val, kid_val, lic_token)
                    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()
