Exemplo n.º 1
0
// handlerChain is a method to build the handler chain for this API server.  We need a custom handler chain so that we
// can have custom handling for `/apis`, since we're hosting discovery differently from anyone else and we're hosting
// the endpoints differently, since we're proxying all groups except for apiregistration.k8s.io.
func (h *handlerChainConfig) handlerChain(apiHandler http.Handler, c *genericapiserver.Config) (secure, insecure http.Handler) {
	// add this as a filter so that we never collide with "already registered" failures on `/apis`
	handler := WithAPIs(apiHandler, h.informers.Apiregistration().InternalVersion().APIServices(), h.serviceLister, h.endpointsLister)

	handler = genericapifilters.WithAuthorization(handler, c.RequestContextMapper, c.Authorizer)

	// this mux is NOT protected by authorization, but DOES have authentication information
	// this is so that everyone can hit the proxy and we can properly identify the user.  The backing
	// API server will deal with authorization
	handler = WithProxyMux(handler, h.proxyMux)

	handler = genericapifilters.WithImpersonation(handler, c.RequestContextMapper, c.Authorizer)
	// audit to stdout to help with debugging as we get this started
	handler = genericapifilters.WithAudit(handler, c.RequestContextMapper, os.Stdout)
	handler = genericapifilters.WithAuthentication(handler, c.RequestContextMapper, c.Authenticator, genericapifilters.Unauthorized(c.SupportsBasicAuth))

	handler = genericfilters.WithCORS(handler, c.CorsAllowedOriginList, nil, nil, nil, "true")
	handler = genericfilters.WithPanicRecovery(handler, c.RequestContextMapper)
	handler = genericfilters.WithTimeoutForNonLongRunningRequests(handler, c.RequestContextMapper, c.LongRunningFunc)
	handler = genericfilters.WithMaxInFlightLimit(handler, c.MaxRequestsInFlight, c.MaxMutatingRequestsInFlight, c.RequestContextMapper, c.LongRunningFunc)
	handler = genericapifilters.WithRequestInfo(handler, genericapiserver.NewRequestInfoResolver(c), c.RequestContextMapper)
	handler = genericapirequest.WithRequestContext(handler, c.RequestContextMapper)

	return handler, nil
}
Exemplo n.º 2
0
func DefaultBuildHandlerChain(apiHandler http.Handler, c *Config) (secure, insecure http.Handler) {
	generic := func(handler http.Handler) http.Handler {
		handler = genericfilters.WithCORS(handler, c.CorsAllowedOriginList, nil, nil, nil, "true")
		handler = genericfilters.WithPanicRecovery(handler, c.RequestContextMapper)
		handler = genericfilters.WithTimeoutForNonLongRunningRequests(handler, c.RequestContextMapper, c.LongRunningFunc)
		handler = genericfilters.WithMaxInFlightLimit(handler, c.MaxRequestsInFlight, c.MaxMutatingRequestsInFlight, c.RequestContextMapper, c.LongRunningFunc)
		handler = genericapifilters.WithRequestInfo(handler, NewRequestInfoResolver(c), c.RequestContextMapper)
		handler = apirequest.WithRequestContext(handler, c.RequestContextMapper)
		return handler
	}
	audit := func(handler http.Handler) http.Handler {
		return genericapifilters.WithAudit(handler, c.RequestContextMapper, c.AuditWriter)
	}
	protect := func(handler http.Handler) http.Handler {
		handler = genericapifilters.WithAuthorization(handler, c.RequestContextMapper, c.Authorizer)
		handler = genericapifilters.WithImpersonation(handler, c.RequestContextMapper, c.Authorizer)
		handler = audit(handler) // before impersonation to read original user
		handler = genericapifilters.WithAuthentication(handler, c.RequestContextMapper, c.Authenticator, genericapifilters.Unauthorized(c.SupportsBasicAuth))
		return handler
	}

	return generic(protect(apiHandler)), generic(audit(apiHandler))
}