httpcommon

type EncodeHeadersParam struct {
	Request Request

	// AddGzipHeader indicates that an "accept-encoding: gzip" header should be
	// added to the request.
	AddGzipHeader bool

	// PeerMaxHeaderListSize, when non-zero, is the peer's MAX_HEADER_LIST_SIZE setting.
	PeerMaxHeaderListSize uint64

	// DefaultUserAgent is the User-Agent header to send when the request
	// neither contains a User-Agent nor disables it.
	DefaultUserAgent string

	// HeaderOrder is for ResponseWriter.Header map keys
	// that, if present, defines a header order that will be used to
	// write the headers onto wire. The order of the slice defined how the headers
	// will be sorted. A defined Key goes before an undefined Key.
	//
	// This is the only way to specify some order, because maps don't
	// have a stable iteration order. If no order is given, headers will
	// be sorted lexicographically.
	//
	// According to RFC2616 it is good practice to send general-header fields
	// first, followed by request-header or response-header fields and ending
	// with entity-header fields.
	HeaderOrder []string

	// PHeaderOrder is for setting http2 pseudo header order.
	// If is nil it will use regular GoLang header order.
	// Valid fields are :authority, :method, :path, :scheme
	PHeaderOrder []string
}

type EncodeHeadersResult struct {
	HasBody     bool
	HasTrailers bool
}

type Request struct {
	URL                 *url.URL
	Method              string
	Host                string
	Header              map[string][]string
	Trailer             map[string][]string
	ActualContentLength int64 // 0 means 0, -1 means unknown
}