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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 recoverURL(self, url):
 """ Public method to recover a resource. Args: ----- url: The URL to be collected. Returns: -------- Returns a resource that has to be read, for instance, with html = self.br.read() """

        # Configuring user agents...
        self.setUserAgent()

        # Configuring proxies
        if "https://" in url:
            self.setProxy(protocol = "https")
        else:
            self.setProxy(protocol = "http")

        # Giving special treatment for .onion platforms
        if ".onion" in url:
            try:
                # TODO: configuring manually the tor bundle
                pass
            except:
                # TODO: capturing the error and eventually trying the tor2web approach
                #url = url.replace(".onion", ".tor2web.org")
                pass
            url = url.replace(".onion", ".onion.cab")

        # Opening the resource
        try:
            recurso = self.br.open(url)
        except:
            # Something happened. Maybe the request was forbidden?
            return None

        html = recurso.read()

        return html