replace endless with facebook grace package.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

gorush/server_unix.go

@@ -3,7 +3,10 @@
 package gorush
 
 import (
-	"github.com/fvbock/endless"
+	"crypto/tls"
+	"net/http"
+
+	"github.com/facebookgo/grace/gracehttp"
 )
 
 // RunHTTPServer provide run http or https protocol.
@@ -11,9 +14,30 @@ func RunHTTPServer() error {
 	var err error
 
 	if PushConf.Core.SSL && PushConf.Core.CertPath != "" && PushConf.Core.KeyPath != "" {
-		err = endless.ListenAndServeTLS(":"+PushConf.Core.Port, PushConf.Core.CertPath, PushConf.Core.KeyPath, routerEngine())
+		config := &tls.Config{
+			MinVersion: tls.VersionTLS10,
+		}
+
+		if config.NextProtos == nil {
+			config.NextProtos = []string{"http/1.1"}
+		}
+
+		config.Certificates = make([]tls.Certificate, 1)
+		config.Certificates[0], err = tls.LoadX509KeyPair(PushConf.Core.CertPath, PushConf.Core.KeyPath)
+		if err != nil {
+			LogError.Fatal("Failed to load https cert file: ", err)
+		}
+
+		err = gracehttp.Serve(&http.Server{
+			Addr:      ":" + PushConf.Core.Port,
+			Handler:   routerEngine(),
+			TLSConfig: config,
+		})
 	} else {
-		err = endless.ListenAndServe(":"+PushConf.Core.Port, routerEngine())
+		err = gracehttp.Serve(&http.Server{
+			Addr:    ":" + PushConf.Core.Port,
+			Handler: routerEngine(),
+		})
 	}
 
 	return err