1 files changed, 23 insertions, 0 deletions
diff --git a/internal/host/host.go b/internal/host/host.go
new file mode 100644
index 00000000..dd9b1c8a
--- /dev/null
+++ b/internal/host/host.go
@@ -0,0 +1,23 @@
+package host
+
+import (
+	"net"
+	"net/http"
+	"strings"
+)
+
+// FromString tries to split host port from string, returns host or initial string if fail
+func FromString(s string) string {
+	host := strings.ToLower(s)
+
+	if splitHost, _, err := net.SplitHostPort(host); err == nil {
+		host = splitHost
+	}
+
+	return host
+}
+
+// FromRequest tries to split host port from r.Host, returns host or initial string if fail
+func FromRequest(r *http.Request) string {
+	return FromString(r.Host)
+}