http

type Authorizer interface {
	// data is nil if and only if a response has been written to w.
	// If data is nil then typically the response has status code 401, 403 or 407.
	// data is an unspecified representation of permissions associated with the request.
	Authorize(w http.ResponseWriter, req *http.Request) (data interface{})
}

type BearerTokenAuthorizer = func(ctx context.Context, bearerToken string) (data interface{}, err error)

type Challenge struct {
	Scheme  string
	Params  []*Param
	Token68 string
}

type Param struct {
	Attribute string
	Value     string
}

type Range struct {
	// FirstBytePos is -1 if a suffix-byte-range-spec is represented.
	// Otherwise, FirstBytePos is the offset of the first byte in the range.
	FirstBytePos int64
	// LastBytePos has two interpretations, depending on the value of FirstBytePos.
	// If FirstBytePos >= 0 then
	//		If LastBytePos is -1 then the range includes all bytes with offset >= FirstBytePos.
	//		Otherwise, if LastBytePos >= 0, LastBytePos is the offset of the last byte in the range (inclusive).
	// Otherwise, if FirstBytePos < 0 then
	//		The range includes only the last -LastBytePos (note that LastBytePos is negative) bytes of the
	// 		requested resource.
	LastBytePos int64
}

type WWWAuthenticateError struct {
	// contains filtered or unexported fields
}