1 files changed, 30 insertions, 0 deletions
diff --git a/workhorse/backend.go b/workhorse/backend.go
new file mode 100644
index 00000000000..aef1214abc9
--- /dev/null
+++ b/workhorse/backend.go
@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+	"net/url"
+)
+
+func parseAuthBackend(authBackend string) (*url.URL, error) {
+	backendURL, err := url.Parse(authBackend)
+	if err != nil {
+		return nil, err
+	}
+
+	if backendURL.Host == "" {
+		backendURL, err = url.Parse("http://" + authBackend)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	if backendURL.Scheme != "http" {
+		return nil, fmt.Errorf("invalid scheme, only 'http' is allowed: %q", authBackend)
+	}
+
+	if backendURL.Host == "" {
+		return nil, fmt.Errorf("missing host in %q", authBackend)
+	}
+
+	return backendURL, nil
+}