fw: app: update: Add source file and HTTP 204 handler

This adds the HTTP PUT /update handler which just returns HTTP 204 No
Content.

This is the minimal first step towards a working /update handler.

1 files changed, 42 insertions, 0 deletions

diff --git a/fw/app/src/update.c b/fw/app/src/update.c
new file mode 100644
index 0000000..13471d2
--- /dev/null
+++ b/fw/app/src/update.c
@@ -0,0 +1,42 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+
+#include <zephyr/logging/log.h>
+#include <zephyr/net/http/server.h>
+#include <zephyr/net/http/service.h>
+
+LOG_MODULE_REGISTER(update);
+
+
+static int update_handler(
+	struct http_client_ctx *client,
+	enum http_data_status status,
+	const struct http_request_ctx *request_ctx,
+	struct http_response_ctx *response_ctx,
+	void *user_data
+) {
+	LOG_DBG("Handling update request");
+
+	response_ctx->body = NULL;
+	response_ctx->body_len = 0;
+	response_ctx->final_chunk = true;
+	response_ctx->status = HTTP_204_NO_CONTENT;
+
+	LOG_DBG("Update request handled");
+	return 0;
+}
+
+static struct http_resource_detail_dynamic update_resource_detail = {
+	.common = {
+			.type = HTTP_RESOURCE_TYPE_DYNAMIC,
+			.bitmask_of_supported_http_methods = BIT(HTTP_GET),
+		},
+	.cb = update_handler,
+	.user_data = NULL,
+};
+
+HTTP_RESOURCE_DEFINE(update_resource, http_service, "/update", &update_resource_detail);