old_contents: from __future__ import print_function
  import re
  
  from streamlink.plugin import Plugin
  from streamlink.plugin.api import http
  from streamlink.plugin.api import validate
  from streamlink.stream import HLSStream
  
  
  class RaiPlay(Plugin):
      url_re = re.compile(r"https?://(?:www\.)?raiplay\.it/dirette/(\w+)/?")
      stream_re = re.compile(r"data-video-url.*?=.*?\"([^\"]+)\"")
      stream_schema = validate.Schema(
          validate.all(
              validate.transform(stream_re.search),
              validate.any(
                  None,
                  validate.all(validate.get(1), validate.url())
              )
          )
      )
  
      @classmethod
      def can_handle_url(cls, url):
          return cls.url_re.match(url) is not None
  
      def _get_streams(self):
          channel = self.url_re.match(self.url).group(1)
          self.logger.debug("Found channel: {0}", channel)
          stream_url = http.get(self.url, schema=self.stream_schema)
          if stream_url:
              return HLSStream.parse_variant_playlist(self.session, stream_url)
  
  
  __plugin__ = RaiPlay
  
new_contents: from __future__ import print_function
  import re
  
  from streamlink.plugin import Plugin
  from streamlink.plugin.api import http, useragents
  from streamlink.plugin.api import validate
  from streamlink.stream import HLSStream
  
  
  class RaiPlay(Plugin):
      url_re = re.compile(r"https?://(?:www\.)?raiplay\.it/dirette/(\w+)/?")
      stream_re = re.compile(r"data-video-url.*?=.*?\"([^\"]+)\"")
      stream_schema = validate.Schema(
          validate.all(
              validate.transform(stream_re.search),
              validate.any(
                  None,
                  validate.all(validate.get(1), validate.url())
              )
          )
      )
  
      @classmethod
      def can_handle_url(cls, url):
          return cls.url_re.match(url) is not None
  
      def _get_streams(self):
          channel = self.url_re.match(self.url).group(1)
          self.logger.debug("Found channel: {0}", channel)
          stream_url = http.get(self.url, schema=self.stream_schema)
          if stream_url:
              return HLSStream.parse_variant_playlist(self.session, stream_url, headers={"User-Agent": useragents.CHROME})
  
  
  __plugin__ = RaiPlay
  
subject: add user-agent header to stream redirect request