func EndpointFromUrl(id string, u string) (*VulcanEndpoint, error) {
url, err := netutils.ParseUrl(u)
if err != nil {
return nil, err
}
return &VulcanEndpoint{Url: url, Id: id}, nil
}
func ParseUrl(in string) (*HttpEndpoint, error) {
url, err := netutils.ParseUrl(in)
if err != nil {
return nil, err
}
return &HttpEndpoint{url: url, id: fmt.Sprintf("%s://%s", url.Scheme, url.Host)}, nil
}
func NewRedirectFallback(r Redirect) (*RedirectFallback, error) {
u, err := netutils.ParseUrl(r.URL)
if err != nil {
return nil, err
}
return &RedirectFallback{u: u}, nil
}
func (r *RoundRobin) FindEndpointByUrl(url string) *WeightedEndpoint {
out, err := netutils.ParseUrl(url)
if err != nil {
return nil
}
found, _ := r.findEndpointByUrl(out)
return found
}
func NewUpstreamFromString(in string) (*Upstream, error) {
//To ensure that upstream is correct url
parsedUrl, err := netutils.ParseUrl(in)
if err != nil {
return nil, err
}
return NewUpstreamFromUrl(parsedUrl)
}
// Test scenario when middleware redirects the request
func (s *LocSuite) TestMiddlewareRedirectsRequest(c *C) {
server1 := NewTestServer(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Hi, I'm endpoint 1"))
})
defer server1.Close()
server2 := NewTestServer(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Hi, I'm endpoint 2"))
})
defer server2.Close()
rr1, rr2 := s.newRoundRobin(server1.URL), s.newRoundRobin(server2.URL)
loc1, err := NewLocationWithOptions("loc1", rr1, Options{})
c.Assert(err, IsNil)
loc2, err := NewLocationWithOptions("loc2", rr2, Options{})
c.Assert(err, IsNil)
m := hostroute.NewHostRouter()
route1 := exproute.NewExpRouter()
c.Assert(route1.AddLocation(`TrieRoute("/loc1")`, loc1), IsNil)
route2 := exproute.NewExpRouter()
c.Assert(route2.AddLocation(`TrieRoute("/loc2")`, loc2), IsNil)
m.SetRouter("localhost1", route1)
m.SetRouter("localhost2", route2)
p, err := vulcan.NewProxy(m)
c.Assert(err, IsNil)
proxy := httptest.NewServer(p)
defer proxy.Close()
redirect := &MiddlewareWrapper{
OnRequest: func(r Request) (*http.Response, error) {
u, err := netutils.ParseUrl("http://localhost2/loc2")
if err != nil {
return nil, err
}
return nil, &errors.RedirectError{URL: u}
},
OnResponse: func(r Request, a Attempt) {
},
}
loc1.GetMiddlewareChain().Add("redir", 0, redirect)
response, bodyBytes, err := MakeRequest(proxy.URL+"/loc1", Opts{Host: "localhost1"})
c.Assert(err, IsNil)
c.Assert(response.StatusCode, Equals, http.StatusOK)
c.Assert(string(bodyBytes), Equals, "Hi, I'm endpoint 2")
}
func NewWebhookSideEffect(w Webhook) (*WebhookSideEffect, error) {
if w.Method == "" {
return nil, fmt.Errorf("Supply method")
}
_, err := netutils.ParseUrl(w.URL)
if err != nil {
return nil, err
}
return &WebhookSideEffect{w: w}, nil
}
func (c *ProxyController) DrainUpstreamConnections(w http.ResponseWriter, r *http.Request, params map[string]string) (interface{}, error) {
upstream, err := c.backend.GetUpstream(params["id"])
if err != nil {
return nil, err
}
if upstream == nil {
return nil, api.NotFoundError{Description: "Upstream not found"}
}
timeoutS, err := api.GetStringField(r, "timeout")
if err != nil {
return nil, err
}
timeout, err := strconv.Atoi(timeoutS)
if err != nil {
return nil, err
}
endpoints := make([]*url.URL, len(upstream.Endpoints))
for i, e := range upstream.Endpoints {
u, err := netutils.ParseUrl(e.Url)
if err != nil {
return nil, err
}
endpoints[i] = u
}
connections, err := c.connWatcher.DrainConnections(time.Duration(timeout)*time.Second, endpoints...)
if err != nil {
return nil, err
}
return api.Response{
"Connections": connections,
}, err
}