_http.py 文件源码

def http_response(self, request, response):
        if not hasattr(response, "seek"):
            response = response_seek_wrapper(response)
        http_message = response.info()
        url = response.geturl()
        ct_hdrs = http_message.getheaders("content-type")
        if is_html(ct_hdrs, url, self._allow_xhtml):
            try:
                try:
                    html_headers = parse_head(response,
                                              self.head_parser_class())
                finally:
                    response.seek(0)
            except (HTMLParser.HTMLParseError,
                    sgmllib.SGMLParseError):
                pass
            else:
                for hdr, val in html_headers:
                    # add a header
                    http_message.dict[hdr.lower()] = val
                    text = hdr + ": " + val
                    for line in text.split("\n"):
                        http_message.headers.append(line + "\n")
        return response