Move Twilio authn code into its own package

1 files changed, 16 insertions, 0 deletions

diff --git a/pkg/twilio/util.go b/pkg/twilio/util.go
new file mode 100644
index 0000000..1f1d269
--- /dev/null
+++ b/pkg/twilio/util.go
@@ -0,0 +1,16 @@
+// SPDX-FileCopyrightText: © 2021 Grégoire Duchêne <gduchene@awhk.org>
+// SPDX-License-Identifier: ISC
+
+package twilio
+
+import (
+	"fmt"
+	"net/http"
+)
+
+// EmptyResponseHandler writes an empty XML response so Twilio knows not
+// to do anything after a webhook has been called.
+var EmptyResponseHandler = http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+	w.Header().Set("Content-Type", "text/xml")
+	fmt.Fprint(w, "<Response/>")
+})