fixed cross domain

This commit is contained in:
snoop 2017-08-10 17:22:41 +09:00
parent e77cd9f604
commit f66f96304d

28
main.go
View File

@ -8,6 +8,8 @@ import (
"git.loafle.net/overflow/overflow_service_websocket/config"
"git.loafle.net/overflow/overflow_service_websocket/server"
"strings"
"github.com/golang/glog"
)
const (
@ -53,7 +55,7 @@ func main() {
})
})
http.Handle("/rpc", ws.HTTPHandler())
http.Handle("/rpc", allowCORS(ws.HTTPHandler()))
log.Printf("Address: %s, UseTLS: %t", addr, useTLS)
if err := http.ListenAndServe(addr, nil); err != nil {
@ -61,6 +63,30 @@ func main() {
}
}
//https://github.com/grpc-ecosystem/grpc-gateway/blob/master/examples/main.go
func allowCORS(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if origin := r.Header.Get("Origin"); origin != "" {
w.Header().Set("Access-Control-Allow-Origin", origin)
if r.Method == "OPTIONS" && r.Header.Get("Access-Control-Request-Method") != "" {
preflightHandler(w, r)
return
}
}
h.ServeHTTP(w, r)
})
}
func preflightHandler(w http.ResponseWriter, r *http.Request) {
headers := []string{"Content-Type", "Accept"}
w.Header().Set("Access-Control-Allow-Headers", strings.Join(headers, ","))
methods := []string{"GET", "HEAD", "POST", "PUT", "DELETE"}
w.Header().Set("Access-Control-Allow-Methods", strings.Join(methods, ","))
glog.Infof("preflight request for %s", r.URL.Path)
return
}
func loadConfig() *config.Config {
os.Chdir("./")
wd, _ := os.Getwd()