From 1d23e6cfef077b987d61ec5a4b659efb905c36a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20M=C3=BCller?= <fabian@fablab-altmuehlfranken.de>
Date: Fri, 12 Apr 2024 03:22:24 +0200
Subject: [PATCH] Add HTTP API endpoint for raw messages

RESTful version of simple socket listener.
---
 src/webserver.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/webserver.h b/src/webserver.h
index a9a1b45..d002891 100644
--- a/src/webserver.h
+++ b/src/webserver.h
@@ -66,6 +66,21 @@ namespace {
         sendTextToSign(text);
         webServer.send(200, "text/plain", "ok");
     }
+
+    // RESTful API endpoint -- returns a proper status code rather than a redirect
+    void handleRawApiSend() {
+        String toSend = webServer.arg("plain");
+
+        if (toSend.isEmpty()) {
+            webServer.send(404, "text/plain", "empty body");
+            return;
+        }
+
+        Serial.println("Raw message sent to device: " + toSend);
+        Serial.println("Hex dump: " + hexDump(toSend));
+        Serial1.print(toSend);
+        webServer.send(200, "text/plain", "ok");
+    }
 }
 
 void configureWebServer() {
@@ -74,4 +89,5 @@ void configureWebServer() {
     webServer.on("/", HTTPMethod::HTTP_GET, handleIndex);
     webServer.on("/", HTTPMethod::HTTP_POST, handleFormSend);
     webServer.on("/send", HTTPMethod::HTTP_POST, handleApiSend);
+    webServer.on("/raw", HTTPMethod::HTTP_POST, handleRawApiSend);
 }