Esempio n. 1
0
func (h *keysHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	if !allowMethod(w, r.Method, "HEAD", "GET", "PUT", "POST", "DELETE") {
		return
	}
	w.Header().Set("X-Etcd-Cluster-ID", h.clusterInfo.ID().String())

	ctx, cancel := context.WithTimeout(context.Background(), h.timeout)
	defer cancel()

	rr, err := parseKeyRequest(r, clockwork.NewRealClock())
	if err != nil {
		writeError(w, err)
		return
	}

	resp, err := h.server.Do(ctx, rr)
	if err != nil {
		err = trimErrorPrefix(err, etcdserver.StoreKeysPrefix)
		writeError(w, err)
		return
	}
	switch {
	case resp.Event != nil:
		if err := writeKeyEvent(w, resp.Event, h.timer); err != nil {
			// Should never be reached
			log.Printf("error writing event: %v", err)
		}
	case resp.Watcher != nil:
		ctx, cancel := context.WithTimeout(context.Background(), defaultWatchTimeout)
		defer cancel()
		handleKeyWatch(ctx, w, resp.Watcher, rr.Stream, h.timer)
	default:
		writeError(w, errors.New("received response with no Event/Watcher!"))
	}
}
Esempio n. 2
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// NewClientHandler generates a muxed http.Handler with the given parameters to serve etcd client requests.
func NewClientHandler(server *etcdserver.EtcdServer, timeout time.Duration) http.Handler {
	go capabilityLoop(server)

	sec := auth.NewStore(server, timeout)

	kh := &keysHandler{
		sec:     sec,
		server:  server,
		cluster: server.Cluster(),
		timer:   server,
		timeout: timeout,
	}

	sh := &statsHandler{
		stats: server,
	}

	mh := &membersHandler{
		sec:     sec,
		server:  server,
		cluster: server.Cluster(),
		timeout: timeout,
		clock:   clockwork.NewRealClock(),
	}

	dmh := &deprecatedMachinesHandler{
		cluster: server.Cluster(),
	}

	sech := &authHandler{
		sec:     sec,
		cluster: server.Cluster(),
	}

	mux := http.NewServeMux()
	mux.HandleFunc("/", http.NotFound)
	mux.Handle(healthPath, healthHandler(server))
	mux.HandleFunc(versionPath, versionHandler(server.Cluster(), serveVersion))
	mux.Handle(keysPrefix, kh)
	mux.Handle(keysPrefix+"/", kh)
	mux.HandleFunc(statsPrefix+"/store", sh.serveStore)
	mux.HandleFunc(statsPrefix+"/self", sh.serveSelf)
	mux.HandleFunc(statsPrefix+"/leader", sh.serveLeader)
	mux.HandleFunc(varsPath, serveVars)
	mux.HandleFunc(configPath+"/local/log", logHandleFunc)
	mux.Handle(metricsPath, prometheus.Handler())
	mux.Handle(membersPrefix, mh)
	mux.Handle(membersPrefix+"/", mh)
	mux.Handle(deprecatedMachinesPrefix, dmh)
	handleAuth(mux, sech)

	return requestLogger(mux)
}
Esempio n. 3
0
func (h *keysHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	if !allowMethod(w, r.Method, "HEAD", "GET", "PUT", "POST", "DELETE") {
		return
	}

	w.Header().Set("X-Etcd-Cluster-ID", h.cluster.ID().String())

	ctx, cancel := context.WithTimeout(context.Background(), h.timeout)
	defer cancel()

	rr, err := parseKeyRequest(r, clockwork.NewRealClock())
	if err != nil {
		writeKeyError(w, err)
		return
	}
	// The path must be valid at this point (we've parsed the request successfully).
	if !hasKeyPrefixAccess(h.sec, r, r.URL.Path[len(keysPrefix):], rr.Recursive) {
		writeKeyNoAuth(w)
		return
	}

	resp, err := h.server.Do(ctx, rr)
	if err != nil {
		err = trimErrorPrefix(err, etcdserver.StoreKeysPrefix)
		writeKeyError(w, err)
		return
	}
	switch {
	case resp.Event != nil:
		if err := writeKeyEvent(w, resp.Event, h.timer); err != nil {
			// Should never be reached
			plog.Errorf("error writing event (%v)", err)
		}
	case resp.Watcher != nil:
		ctx, cancel := context.WithTimeout(context.Background(), defaultWatchTimeout)
		defer cancel()
		handleKeyWatch(ctx, w, resp.Watcher, rr.Stream, h.timer)
	default:
		writeKeyError(w, errors.New("received response with no Event/Watcher!"))
	}
}
Esempio n. 4
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// NewClientHandler generates a muxed http.Handler with the given parameters to serve etcd client requests.
func NewClientHandler(server *etcdserver.EtcdServer) http.Handler {
	kh := &keysHandler{
		server:      server,
		clusterInfo: server.Cluster,
		timer:       server,
		timeout:     defaultServerTimeout,
	}

	sh := &statsHandler{
		stats: server,
	}

	mh := &membersHandler{
		server:      server,
		clusterInfo: server.Cluster,
		clock:       clockwork.NewRealClock(),
	}

	dmh := &deprecatedMachinesHandler{
		clusterInfo: server.Cluster,
	}

	mux := http.NewServeMux()
	mux.HandleFunc("/", http.NotFound)
	mux.Handle(healthPath, healthHandler(server))
	mux.HandleFunc(versionPath, serveVersion)
	mux.Handle(keysPrefix, kh)
	mux.Handle(keysPrefix+"/", kh)
	mux.HandleFunc(statsPrefix+"/store", sh.serveStore)
	mux.HandleFunc(statsPrefix+"/self", sh.serveSelf)
	mux.HandleFunc(statsPrefix+"/leader", sh.serveLeader)
	mux.HandleFunc(statsPath, serveStats)
	mux.Handle(membersPrefix, mh)
	mux.Handle(membersPrefix+"/", mh)
	mux.Handle(deprecatedMachinesPrefix, dmh)
	return mux
}
Esempio n. 5
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func newDiscovery(durl, dproxyurl string, id types.ID) (*discovery, error) {
	u, err := url.Parse(durl)
	if err != nil {
		return nil, err
	}
	token := u.Path
	u.Path = ""
	pf, err := newProxyFunc(dproxyurl)
	if err != nil {
		return nil, err
	}
	cfg := client.Config{
		Transport: &http.Transport{
			Proxy: pf,
			Dial: (&net.Dialer{
				Timeout:   30 * time.Second,
				KeepAlive: 30 * time.Second,
			}).Dial,
			TLSHandshakeTimeout: 10 * time.Second,
			// TODO: add ResponseHeaderTimeout back when watch on discovery service writes header early
		},
		Endpoints: []string{u.String()},
	}
	c, err := client.New(cfg)
	if err != nil {
		return nil, err
	}
	dc := client.NewKeysAPIWithPrefix(c, "")
	return &discovery{
		cluster: token,
		c:       dc,
		id:      id,
		url:     u,
		clock:   clockwork.NewRealClock(),
	}, nil
}
Esempio n. 6
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func newDiscovery(durl, dproxyurl string, id types.ID) (*discovery, error) {
	u, err := url.Parse(durl)
	if err != nil {
		return nil, err
	}
	token := u.Path
	u.Path = ""
	pf, err := newProxyFunc(dproxyurl)
	if err != nil {
		return nil, err
	}
	c, err := client.NewHTTPClient(&http.Transport{Proxy: pf}, []string{u.String()})
	if err != nil {
		return nil, err
	}
	dc := client.NewDiscoveryKeysAPI(c)
	return &discovery{
		cluster: token,
		c:       dc,
		id:      id,
		url:     u,
		clock:   clockwork.NewRealClock(),
	}, nil
}
Esempio n. 7
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// The given namespaces will be created as initial directories in the returned store.
func New(namespaces ...string) Store {
	s := newStore(namespaces...)
	s.clock = clockwork.NewRealClock()
	return s
}