Merge pull request #115 from konnected-io/cloud-provisioning

fixes preflight response for iOS CORS check

src/lfs/device.lua

@@ -2,7 +2,7 @@ local me = {
   id = "uuid:8f655392-a778-4fee-97b9-4825918" .. string.format("%x", node.chipid()),
   name = "Konnected",
   hwVersion = "2.3.0",
-  swVersion = "2.3.2",
+  swVersion = "2.3.3",
   http_port = math.floor(node.chipid()/1000) + 8000,
   urn = "urn:schemas-konnected-io:device:Security:1"
 }

src/lfs/httpd_res.lua

@@ -4,9 +4,14 @@ local function respondWithText(sck, body, ty, st, headers)
   local ty = ty or "application/json"
   local st = st or 200
   local headers = headers or ''
+  local contentLength = string.len(body)
+
+  if contentLength > 0 then
+    headers = table.concat({ headers, 'Content-Type: ', ty, '\r\nContent-Length: ', contentLength, '\r\n' })
+  end
+
   local sendContent = table.concat({
-    'HTTP/1.1 ', st, '\r\nContent-Type: ', ty, '\r\nContent-Length: ', string.len(body),
-    '\r\nAccess-Control-Allow-Origin: *\r\n', headers, '\r\n', body
+    'HTTP/1.1 ', st, '\r\nAccess-Control-Allow-Origin: *\r\n', headers, '\r\n', body
   })
   local function doSend(s)
     if sendContent == '' then

src/lfs/server_receiver.lua

@@ -21,7 +21,8 @@ local function httpReceiver(sck, payload)
   local response = require("httpd_res")()
 
   if request.method == 'OPTIONS' then
-    response.text(sck, "", nil, 204, table.concat({
+    print("Heap: ", node.heap(), "HTTP: ", "Options")
+    response.text(sck, "", nil, nil, table.concat({
       "Access-Control-Allow-Methods: POST, GET, PUT, OPTIONS\r\n",
       "Access-Control-Allow-Headers: Content-Type\r\n"
     }))