Added RequestCtx.IsTLS, which may be used for determining whether the connection is encrypted

server.go

@@ -248,9 +248,9 @@ type HijackHandler func(c net.Conn)
 // The server skips calling the handler in the following cases:
 //
 //     * 'Connection: close' header exists in either request or response.
-//     * Unexpected error during writing response to the connection.
+//     * Unexpected error during response writing to the connection.
 //
-// The server no longer processes requests from hijacked connections.
+// The server stops processing requests from hijacked connections.
 // Server limits such as Concurrency, ReadTimeout, WriteTimeout, etc.
 // aren't applied to hijacked connections.
 //
@@ -266,6 +266,14 @@ func (ctx *RequestCtx) Hijack(handler HijackHandler) {
 	ctx.hijackHandler = handler
 }
 
+// IsTLS returns true if the underlying connection is tls.Conn.
+//
+// tls.Conn is an encrypted connection (aka SSL, HTTPS).
+func (ctx *RequestCtx) IsTLS() bool {
+	_, ok := ctx.c.(*tls.Conn)
+	return ok
+}
+
 type firstByteReader struct {
 	c        net.Conn
 	ch       byte