Properly parse HTTP host for verification

Also fix H2 transport to not verify if host is not defined

transport/internet/internet.go

@@ -1,3 +1,18 @@
 package internet
 
+import (
+	"net"
+	"strings"
+)
+
 //go:generate go run github.com/xtls/xray-core/common/errors/errorgen
+
+func IsValidHTTPHost(request string, config string) bool {
+	r := strings.ToLower(request)
+	c := strings.ToLower(config)
+	if strings.Contains(r, ":") {
+		h, _, _ := net.SplitHostPort(r)
+		return h == c
+	}
+	return r == c
+}