Python httputil.HTTPHeaders方法代码示例

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def respond_204(self, request):
        self.http1 = request.version.startswith('HTTP/1.')
        if not self.http1:
            # Close the request cleanly in HTTP/2; it will be skipped anyway.
            request.connection.write_headers(ResponseStartLine('', 200, 'OK'),
                                             HTTPHeaders())
            request.connection.finish()
            return
        # A 204 response never has a body, even if doesn't have a content-length
        # (which would otherwise mean read-until-close).  Tornado always
        # sends a content-length, so we simulate here a server that sends
        # no content length and does not close the connection.
        #
        # Tests of a 204 response with a Content-Length header are included
        # in SimpleHTTPClientTestMixin.
        stream = request.connection.detach()
        stream.write(
            b"HTTP/1.1 204 No content\r\n\r\n")
        stream.close() 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def _process_server_headers(
        self, key: Union[str, bytes], headers: httputil.HTTPHeaders
    ) -> None:
        """Process the headers sent by the server to this client connection.

        'key' is the websocket handshake challenge/response key.
        """
        assert headers["Upgrade"].lower() == "websocket"
        assert headers["Connection"].lower() == "upgrade"
        accept = self.compute_accept_value(key)
        assert headers["Sec-Websocket-Accept"] == accept

        extensions = self._parse_extensions_header(headers)
        for ext in extensions:
            if ext[0] == "permessage-deflate" and self._compression_options is not None:
                self._create_compressors("client", ext[1])
            else:
                raise ValueError("unsupported extension %r", ext)

        self.selected_subprotocol = headers.get("Sec-WebSocket-Protocol", None) 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def _curl_header_callback(
        self,
        headers: httputil.HTTPHeaders,
        header_callback: Callable[[str], None],
        header_line_bytes: bytes,
    ) -> None:
        header_line = native_str(header_line_bytes.decode("latin1"))
        if header_callback is not None:
            self.io_loop.add_callback(header_callback, header_line)
        # header_line as returned by curl includes the end-of-line characters.
        # whitespace at the start should be preserved to allow multi-line headers
        header_line = header_line.rstrip()
        if header_line.startswith("HTTP/"):
            headers.clear()
            try:
                (__, __, reason) = httputil.parse_response_start_line(header_line)
                header_line = "X-Http-Reason: %s" % reason
            except httputil.HTTPInputError:
                return
        if not header_line:
            return
        headers.parse_line(header_line) 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def headers_received(
        self,
        start_line: Union[httputil.RequestStartLine, httputil.ResponseStartLine],
        headers: httputil.HTTPHeaders,
    ) -> Optional[Awaitable[None]]:
        assert isinstance(start_line, httputil.RequestStartLine)
        request = httputil.HTTPServerRequest(
            connection=self.request_conn,
            server_connection=self.server_conn,
            start_line=start_line,
            headers=headers,
        )

        self.delegate = self.router.find_handler(request)
        if self.delegate is None:
            app_log.debug(
                "Delegate for %s %s request not found",
                start_line.method,
                start_line.path,
            )
            self.delegate = _DefaultMessageDelegate(self.request_conn)

        return self.delegate.headers_received(start_line, headers) 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def respond_204(self, request):
        self.http1 = request.version.startswith("HTTP/1.")
        if not self.http1:
            # Close the request cleanly in HTTP/2; it will be skipped anyway.
            request.connection.write_headers(
                ResponseStartLine("", 200, "OK"), HTTPHeaders()
            )
            request.connection.finish()
            return

        # A 204 response never has a body, even if doesn't have a content-length
        # (which would otherwise mean read-until-close).  We simulate here a
        # server that sends no content length and does not close the connection.
        #
        # Tests of a 204 response with no Content-Length header are included
        # in SimpleHTTPClientTestMixin.
        stream = request.connection.detach()
        stream.write(b"HTTP/1.1 204 No content\r\n")
        if request.arguments.get("error", [False])[-1]:
            stream.write(b"Content-Length: 5\r\n")
        else:
            stream.write(b"Content-Length: 0\r\n")
        stream.write(b"\r\n")
        stream.close() 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def test_header_types(self):
        # Header values may be passed as character or utf8 byte strings,
        # in a plain dictionary or an HTTPHeaders object.
        # Keys must always be the native str type.
        # All combinations should have the same results on the wire.
        for value in [u"MyUserAgent", b"MyUserAgent"]:
            for container in [dict, HTTPHeaders]:
                headers = container()
                headers["User-Agent"] = value
                resp = self.fetch("/user_agent", headers=headers)
                self.assertEqual(
                    resp.body,
                    b"MyUserAgent",
                    "response=%r, value=%r, container=%r"
                    % (resp.body, value, container),
                ) 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def _can_keep_alive(
        self, start_line: httputil.RequestStartLine, headers: httputil.HTTPHeaders
    ) -> bool:
        if self.params.no_keep_alive:
            return False
        connection_header = headers.get("Connection")
        if connection_header is not None:
            connection_header = connection_header.lower()
        if start_line.version == "HTTP/1.1":
            return connection_header != "close"
        elif (
            "Content-Length" in headers
            or headers.get("Transfer-Encoding", "").lower() == "chunked"
            or getattr(start_line, "method", None) in ("HEAD", "GET")
        ):
            # start_line may be a request or response start line; only
            # the former has a method attribute.
            return connection_header == "keep-alive"
        return False 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def clear(self):
        """Resets all headers and content for this response."""
        self._headers = httputil.HTTPHeaders({
            "Server": "TornadoServer/%s" % tornado.version,
            "Content-Type": "text/html; charset=UTF-8",
            "Date": httputil.format_timestamp(time.time()),
        })
        self.set_default_headers()
        if (not self.request.supports_http_1_1() and
            getattr(self.request, 'connection', None) and
                not self.request.connection.no_keep_alive):
            conn_header = self.request.headers.get("Connection")
            if conn_header and (conn_header.lower() == "keep-alive"):
                self.set_header("Connection", "Keep-Alive")
        self._write_buffer = []
        self._status_code = 200
        self._reason = httputil.responses[200] 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def respond_204(self, request):
        self.http1 = request.version.startswith('HTTP/1.')
        if not self.http1:
            # Close the request cleanly in HTTP/2; it will be skipped anyway.
            request.connection.write_headers(ResponseStartLine('', 200, 'OK'),
                                             HTTPHeaders())
            request.connection.finish()
            return

        # A 204 response never has a body, even if doesn't have a content-length
        # (which would otherwise mean read-until-close).  We simulate here a
        # server that sends no content length and does not close the connection.
        #
        # Tests of a 204 response with no Content-Length header are included
        # in SimpleHTTPClientTestMixin.
        stream = request.connection.detach()
        stream.write(b"HTTP/1.1 204 No content\r\n")
        if request.arguments.get("error", [False])[-1]:
            stream.write(b"Content-Length: 5\r\n")
        else:
            stream.write(b"Content-Length: 0\r\n")
        stream.write(b"\r\n")
        stream.close() 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def _apply_xheaders(self, headers: httputil.HTTPHeaders) -> None:
        """Rewrite the ``remote_ip`` and ``protocol`` fields."""
        # Squid uses X-Forwarded-For, others use X-Real-Ip
        ip = headers.get("X-Forwarded-For", self.remote_ip)
        # Skip trusted downstream hosts in X-Forwarded-For list
        for ip in (cand.strip() for cand in reversed(ip.split(","))):
            if ip not in self.trusted_downstream:
                break
        ip = headers.get("X-Real-Ip", ip)
        if netutil.is_valid_ip(ip):
            self.remote_ip = ip
        # AWS uses X-Forwarded-Proto
        proto_header = headers.get(
            "X-Scheme", headers.get("X-Forwarded-Proto", self.protocol)
        )
        if proto_header:
            # use only the last proto entry if there is more than one
            # TODO: support trusting mutiple layers of proxied protocol
            proto_header = proto_header.split(",")[-1].strip()
        if proto_header in ("http", "https"):
            self.protocol = proto_header 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def clear(self):
        """重置这个响应的所有头部和内容."""
        self._headers = httputil.HTTPHeaders({
            "Server": "TornadoServer/%s" % tornado.version,
            "Content-Type": "text/html; charset=UTF-8",
            "Date": httputil.format_timestamp(time.time()),
        })
        self.set_default_headers()
        self._write_buffer = []
        self._status_code = 200
        self._reason = httputil.responses[200] 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def __call__(self, environ, start_response):
        method = environ["REQUEST_METHOD"]
        uri = urllib_parse.quote(from_wsgi_str(environ.get("SCRIPT_NAME", "")))
        uri += urllib_parse.quote(from_wsgi_str(environ.get("PATH_INFO", "")))
        if environ.get("QUERY_STRING"):
            uri += "?" + environ["QUERY_STRING"]
        headers = httputil.HTTPHeaders()
        if environ.get("CONTENT_TYPE"):
            headers["Content-Type"] = environ["CONTENT_TYPE"]
        if environ.get("CONTENT_LENGTH"):
            headers["Content-Length"] = environ["CONTENT_LENGTH"]
        for key in environ:
            if key.startswith("HTTP_"):
                headers[key[5:].replace("_", "-")] = environ[key]
        if headers.get("Content-Length"):
            body = environ["wsgi.input"].read(
                int(headers["Content-Length"]))
        else:
            body = b""
        protocol = environ["wsgi.url_scheme"]
        remote_ip = environ.get("REMOTE_ADDR", "")
        if environ.get("HTTP_HOST"):
            host = environ["HTTP_HOST"]
        else:
            host = environ["SERVER_NAME"]
        connection = _WSGIConnection(method, start_response,
                                     _WSGIRequestContext(remote_ip, protocol))
        request = httputil.HTTPServerRequest(
            method, uri, "HTTP/1.1", headers=headers, body=body,
            host=host, connection=connection)
        request._parse_body()
        self.application(request)
        if connection._error:
            raise connection._error
        if not connection._finished:
            raise Exception("request did not finish synchronously")
        return connection._write_buffer 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def headers(self, value):
        if value is None:
            self._headers = httputil.HTTPHeaders()
        else:
            self._headers = value 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def _process_queue(self):
        with stack_context.NullContext():
            while True:
                started = 0
                while self._free_list and self._requests:
                    started += 1
                    curl = self._free_list.pop()
                    (request, callback) = self._requests.popleft()
                    curl.info = {
                        "headers": httputil.HTTPHeaders(),
                        "buffer": BytesIO(),
                        "request": request,
                        "callback": callback,
                        "curl_start_time": time.time(),
                    }
                    try:
                        self._curl_setup_request(
                            curl, request, curl.info["buffer"],
                            curl.info["headers"])
                    except Exception as e:
                        # If there was an error in setup, pass it on
                        # to the callback. Note that allowing the
                        # error to escape here will appear to work
                        # most of the time since we are still in the
                        # caller's original stack frame, but when
                        # _process_queue() is called from
                        # _finish_pending_requests the exceptions have
                        # nowhere to go.
                        callback(HTTPResponse(
                            request=request,
                            code=599,
                            error=e))
                    else:
                        self._multi.add_handle(curl)

                if not started:
                    break 

# 需要导入模块: from tornado import httputil [as 别名]
# 或者: from tornado.httputil import HTTPHeaders [as 别名]
def test_header_reuse(self):
        # Apps may reuse a headers object if they are only passing in constant
        # headers like user-agent.  The header object should not be modified.
        headers = HTTPHeaders({'User-Agent': 'Foo'})
        self.fetch("/hello", headers=headers)
        self.assertEqual(list(headers.get_all()), [('User-Agent', 'Foo')])