func handleEvent(ev event.Event, ctx *ConnContext) (event.Event, error) {
switch ev.(type) {
case *event.AuthEvent:
auth := ev.(*event.AuthEvent)
err := authConnection(auth, ctx)
var authres event.NotifyEvent
authres.SetId(ev.GetId())
if nil == err {
authres.Code = event.SuccessAuthed
} else {
authres.Code = event.ErrAuthFailed
}
return &authres, nil
case *event.HeartBeatEvent:
//do nothing
case *event.ChannelCloseReqEvent:
ctx.Closing = true
queue := getEventQueue(ctx.ConnId, false)
if nil != queue {
queue.Publish(nil, 1*time.Minute)
}
case *event.ConnTestEvent:
session := getProxySessionByEvent(ctx, ev)
if nil == session {
log.Printf("Session:%d is NOT exist now.", ev.GetId())
queue := getEventQueue(ctx.ConnId, false)
if nil != queue {
closeEv := &event.ConnCloseEvent{}
closeEv.SetId(ev.GetId())
queue.Publish(closeEv, 10*time.Millisecond)
}
}
default:
session := getProxySessionByEvent(ctx, ev)
if nil != session {
session.offer(ev)
}
if _, ok := ev.(*event.ConnCloseEvent); !ok {
if nil == session {
log.Printf("No session:%d found for event %T", ev.GetId(), ev)
}
} else {
if nil != session {
session.closeByClient = true
}
}
}
return nil, nil
}
func fetch(context appengine.Context, ev *event.HTTPRequestEvent) event.Event {
errorResponse := new(event.NotifyEvent)
errorResponse.SetId(ev.GetId())
req, err := ev.ToRequest("")
if nil != err {
errorResponse.Code = event.ErrInvalidHttpRequest
errorResponse.Reason = fmt.Sprintf("Invalid fetch url:%s with err:%v", ev.URL, err)
return errorResponse
}
var t urlfetch.Transport
t.Context = context
t.Deadline, _ = time.ParseDuration("10s")
t.AllowInvalidServerCertificate = true
retryCount := 2
for retryCount > 0 {
resp, err := t.RoundTrip(req)
if err == nil {
res := event.NewHTTPResponseEvent(resp)
for nil != resp.Body {
buffer := make([]byte, 8192)
n, er := resp.Body.Read(buffer)
if nil != er {
context.Errorf("Failed to read body for reason:%v", er)
break
}
res.Content = append(res.Content, buffer[0:n]...)
}
if resp.ContentLength != int64(len(res.Content)) {
context.Errorf("Failed to read body %d %d", resp.ContentLength, len(res.Content))
}
context.Errorf("%v %d %d", resp.Header.Get("Content-Length"), resp.ContentLength, len(res.Content))
return res
}
context.Errorf("Failed to fetch URL[%s] for reason:%v", ev.URL, err)
retryCount--
if strings.EqualFold(req.Method, "GET") && strings.Contains(err.Error(), "RESPONSE_TOO_LARGE") {
errorResponse.Code = event.ErrTooLargeResponse
return errorResponse
}
}
errorResponse.Code = event.ErrRemoteProxyTimeout
errorResponse.Reason = fmt.Sprintf("Fetch timeout for url:%s", ev.URL)
return errorResponse
}
