Golang ResponseWriter.WriteHeader Examples

Golang ResponseWriter.WriteHeader - 30 examples found. These are the top rated real world Golang examples of net/http.ResponseWriter.WriteHeader extracted from open source projects. You can rate examples to help us improve the quality of examples.
Example #1
0
// OperatorRaftPeer supports actions on Raft peers. Currently we only support
// removing peers by address.
func (s *HTTPServer) OperatorRaftPeer(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
	if req.Method != "DELETE" {
		resp.WriteHeader(http.StatusMethodNotAllowed)
		return nil, nil
	}

	var args structs.RaftPeerByAddressRequest
	s.parseDC(req, &args.Datacenter)
	s.parseToken(req, &args.Token)

	params := req.URL.Query()
	if _, ok := params["address"]; ok {
		args.Address = raft.ServerAddress(params.Get("address"))
	} else {
		resp.WriteHeader(http.StatusBadRequest)
		resp.Write([]byte("Must specify ?address with IP:port of peer to remove"))
		return nil, nil
	}

	var reply struct{}
	if err := s.agent.RPC("Operator.RaftRemovePeerByAddress", &args, &reply); err != nil {
		return nil, err
	}
	return nil, nil
}
Example #2
0
func WriteSuccess(w http.ResponseWriter, code int) error {
	fmt.Println(code)
	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	w.WriteHeader(code)
	item := Item{Item: "success"}
	return json.NewEncoder(w).Encode(item)
}
Example #3
0
// ServeHTTP dispatches the handler registered in the matched route.
//
// When there is a match, the route variables can be retrieved calling
// mux.Vars(request).
func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
	// Clean path to canonical form and redirect.
	if p := cleanPath(req.URL.Path); p != req.URL.Path {

		// Added 3 lines (Philip Schlump) - It was dropping the query string and #whatever from query.
		// This matches with fix in go 1.2 r.c. 4 for same problem.  Go Issue:
		// http://code.google.com/p/go/issues/detail?id=5252
		url := *req.URL
		url.Path = p
		p = url.String()

		w.Header().Set("Location", p)
		w.WriteHeader(http.StatusMovedPermanently)
		return
	}
	var match RouteMatch
	var handler http.Handler
	if r.Match(req, &match) {
		handler = match.Handler
		setVars(req, match.Vars)
		setCurrentRoute(req, match.Route)
	}
	if handler == nil {
		handler = r.NotFoundHandler
		if handler == nil {
			handler = http.NotFoundHandler()
		}
	}
	if !r.KeepContext {
		defer context.Clear(req)
	}
	handler.ServeHTTP(w, req)
}
Example #4
0
// showBlockPage shows a block page for a page that was blocked by an ACL.
func (c *config) showBlockPage(w http.ResponseWriter, r *http.Request, resp *http.Response, user string, tally map[rule]int, scores map[string]int, rule ACLActionRule) {
	w.WriteHeader(http.StatusForbidden)
	if c.BlockTemplate == nil {
		return
	}
	data := blockData{
		URL:        r.URL.String(),
		Conditions: rule.Conditions(),
		User:       user,
		Tally:      listTally(stringTally(tally)),
		Scores:     listTally(scores),
		Request:    r,
		Response:   resp,
	}
	w.Header().Set("Content-Type", "text/html; charset=utf-8")

	// Convert rule conditions into category descriptions as much as possible.
	var categories []string
	for _, acl := range rule.Needed {
		categories = append(categories, c.aclDescription(acl))
	}
	for _, acl := range rule.Disallowed {
		categories = append(categories, "not "+c.aclDescription(acl))
	}
	data.Categories = strings.Join(categories, ", ")

	err := c.BlockTemplate.Execute(w, data)
	if err != nil {
		log.Println("Error filling in block page template:", err)
	}
}
Example #5
0
func respondError(w http.ResponseWriter, apiErr *apiError, data interface{}) {
	w.Header().Set("Content-Type", "application/json")

	var code int
	switch apiErr.typ {
	case errorBadData:
		code = http.StatusBadRequest
	case errorExec:
		code = 422
	case errorCanceled, errorTimeout:
		code = http.StatusServiceUnavailable
	default:
		code = http.StatusInternalServerError
	}
	w.WriteHeader(code)

	b, err := json.Marshal(&response{
		Status:    statusError,
		ErrorType: apiErr.typ,
		Error:     apiErr.err.Error(),
		Data:      data,
	})
	if err != nil {
		return
	}
	w.Write(b)
}
Example #6
0
func (s *DockerServer) nodeUpdate(w http.ResponseWriter, r *http.Request) {
	s.swarmMut.Lock()
	defer s.swarmMut.Unlock()
	if s.swarm == nil {
		w.WriteHeader(http.StatusNotAcceptable)
		return
	}
	id := mux.Vars(r)["id"]
	var n *swarm.Node
	for i := range s.nodes {
		if s.nodes[i].ID == id {
			n = &s.nodes[i]
			break
		}
	}
	if n == nil {
		w.WriteHeader(http.StatusNotFound)
		return
	}
	var spec swarm.NodeSpec
	err := json.NewDecoder(r.Body).Decode(&spec)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	n.Spec = spec
	err = s.runNodeOperation(s.swarmServer.URL(), nodeOperation{
		Op:   "update",
		Node: *n,
	})
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
}