text: import base64
  import html
  import json
  
  import requests
  
  from ..engine.decorators import Plugin
  from ..plugins import match1, logger, fake_headers
  from .general import DownloadBase
  
  
  @Plugin.download(regexp=r'(?:https?://)?(?:(?:www|m)\.)?huya\.com')
  class Huya(DownloadBase):
      def __init__(self, fname, url, suffix='flv'):
          super().__init__(fname, url, suffix)
  
      def check_stream(self):
          logger.debug(self.fname)
          res = requests.get(self.url, timeout=5, headers=fake_headers)
          res.close()
          huya = match1(res.text, '"stream": "([a-zA-Z0-9+=/]+)"')
          if huya:
              huyajson = json.loads(base64.b64decode(huya).decode())['data'][0]['gameStreamInfoList'][0]
              absurl = u'{}/{}.{}?{}'.format(
                  huyajson["sFlvUrl"], huyajson["sStreamName"], huyajson["sFlvUrlSuffix"], huyajson["sFlvAntiCode"])
              self.raw_stream_url = html.unescape(absurl)
              return True
  