fw: js: Add web frontend to display heartbeat

This makes it transparent to the user that there is an active connection
to the firmware. If the connection is broken the user notices that
quickly and can re-load the page.

1 files changed, 16 insertions, 0 deletions

diff --git a/fw/src/http.c b/fw/src/http.c
index b9a76ba..e206f86 100644
--- a/fw/src/http.c
+++ b/fw/src/http.c
@@ -34,6 +34,21 @@ struct http_resource_detail_static index_resource_detail = {
 	.static_data_len = sizeof(index_html_gz),
 };
 
+static const uint8_t js_html_gz[] = {
+    #include "iot-contact.js.gz.inc"
+};
+
+struct http_resource_detail_static js_resource_detail = {
+	.common = {
+			.type = HTTP_RESOURCE_TYPE_STATIC,
+			.bitmask_of_supported_http_methods = BIT(HTTP_GET),
+			.content_encoding = "gzip",
+			.content_type = "text/javascript",
+		},
+	.static_data = js_html_gz,
+	.static_data_len = sizeof(js_html_gz),
+};
+
 static int favicon_handler(
 	struct http_client_ctx *client,
 	enum http_data_status status,
@@ -80,6 +95,7 @@ HTTP_SERVICE_DEFINE(http_service, NULL, &http_port, 1, 10, NULL, NULL);
 HTTP_RESOURCE_DEFINE(index_resource, http_service, "/", &index_resource_detail);
 HTTP_RESOURCE_DEFINE(websocket_resource, http_service, "/", &websocket_resource_detail);
 HTTP_RESOURCE_DEFINE(favicon_resource, http_service, "/favicon.ico", &favicon_resource_detail);
+HTTP_RESOURCE_DEFINE(js_resource, http_service, "/iot-contact.js", &js_resource_detail);
 
 int init_http_server(void) {
 	LOG_DBG("Starting HTTP server");