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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def do_GET(self):
 # check here request header to identify the type of req, if http or ws # if this is a ws req, instance a ws handler, add it to App's ws list, return if "Upgrade" in self.headers: if self.headers['Upgrade'] == 'websocket': #passing arguments to websocket handler, otherwise it will lost the last message, # and will be unable to handshake ws = WebSocketsHandler(self.headers, self.request, self.client_address, self.server) return """Handler for the GET requests."""

        do_process = False
        if self.server.auth is None:
            do_process = True
        else:
            if not ('Authorization' in self.headers) or self.headers['Authorization'] is None:
                self._log.info("Authenticating")
                self.do_AUTHHEAD()
                self.wfile.write(encode_text('no auth header received'))
            elif self.headers['Authorization'] == 'Basic ' + self.server.auth.decode():
                do_process = True
            else:
                self.do_AUTHHEAD()
                self.wfile.write(encode_text(self.headers['Authorization']))
                self.wfile.write(encode_text('not authenticated'))

        if do_process:
            path = str(unquote(self.path))
            # noinspection PyBroadException
            try:
                self._instance()
                # build the page (call main()) in user code, if not built yet
                with self.update_lock:
                    # build the root page once if necessary
                    if not 'root' in self.page.children['body'].children.keys():
                        self._log.info('built UI (path=%s)' % path)
                        self.set_root_widget(self.main(*self.server.userdata))
                self._process_all(path)
            except:
                self._log.error('error processing GET request', exc_info=True)