Version: v0.0.0-...-8b1022e Latest Latest

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Published: Jun 17, 2016 License: Apache-2.0, Apache-2.0 Imports: 10 Imported by: 0



package forwarder implements http handler that forwards requests to remote server and serves back the response websocket proxying support based on



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const (
	XForwardedProto    = "X-Forwarded-Proto"
	XForwardedFor      = "X-Forwarded-For"
	XForwardedHost     = "X-Forwarded-Host"
	XForwardedServer   = "X-Forwarded-Server"
	Connection         = "Connection"
	KeepAlive          = "Keep-Alive"
	ProxyAuthenticate  = "Proxy-Authenticate"
	ProxyAuthorization = "Proxy-Authorization"
	Te                 = "Te" // canonicalized version of "TE"
	Trailers           = "Trailers"
	TransferEncoding   = "Transfer-Encoding"
	Upgrade            = "Upgrade"
	ContentLength      = "Content-Length"


Hop-by-hop headers. These are removed when sent to the backend. Copied from reverseproxy.go, too bad


func ErrorHandler

func ErrorHandler(h utils.ErrorHandler) optSetter

ErrorHandler is a functional argument that sets error handler of the server

func Logger

func Logger(l utils.Logger) optSetter

Logger specifies the logger to use. Forwarder will default to oxyutils.NullLogger if no logger has been specified

func PassHostHeader

func PassHostHeader(b bool) optSetter

PassHostHeader specifies if a client's Host header field should be delegated

func Rewriter

func Rewriter(r ReqRewriter) optSetter

Rewriter defines a request rewriter for the HTTP forwarder

func RoundTripper

func RoundTripper(r http.RoundTripper) optSetter

RoundTripper sets a new http.RoundTripper Forwarder will use http.DefaultTransport as a default round tripper

func WebsocketRewriter

func WebsocketRewriter(r ReqRewriter) optSetter

WebsocketRewriter defines a request rewriter for the websocket forwarder


type Forwarder

type Forwarder struct {
	// contains filtered or unexported fields

Forwarder wraps two traffic forwarding implementations: HTTP and websockets. It decides based on the specified request which implementation to use

func New

func New(setters ...optSetter) (*Forwarder, error)

New creates an instance of Forwarder based on the provided list of configuration options

func (*Forwarder) ServeHTTP

func (f *Forwarder) ServeHTTP(w http.ResponseWriter, req *http.Request)

ServeHTTP decides which forwarder to use based on the specified request and delegates to the proper implementation

type HeaderRewriter

type HeaderRewriter struct {
	TrustForwardHeader bool
	Hostname           string

Rewriter is responsible for removing hop-by-hop headers and setting forwarding headers

func (*HeaderRewriter) Rewrite

func (rw *HeaderRewriter) Rewrite(req *http.Request)

type ReqRewriter

type ReqRewriter interface {
	Rewrite(r *http.Request)

ReqRewriter can alter request headers and body

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