Initial work for widget implementation

scripts/lua/edit_widgets.lua

@@ -0,0 +1,57 @@
+--
+-- (C) 2020 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+require "lua_utils"
+local json = require("dkjson")
+local widget_utils = require("widget_utils")
+local http_lint = require("http_lint")
+
+local function reportError(msg)
+    print(json.encode({ message = msg, success = false, csrf = ntop.getRandomCSRFValue() }))
+end
+
+local function format_params(data)
+    return {
+        ifid = data.interface,
+        key_ip = data.key_ip,
+        key_mac = data.key_mac,
+        key_asn = data.key_asn
+    }
+end
+
+local action = _POST["action"]
+
+sendHTTPContentTypeHeader('application/json')
+
+if (action == nil) then
+  traceError(TRACE_ERROR, TRACE_CONSOLE, "Missing 'action' parameter. Bad CSRF?")
+  reportError("Missing 'action' parameter. Bad CSRF?")
+  return
+end
+
+local json_data = _POST["JSON"]
+local data = json.decode(json_data)
+local params = format_params(data)
+
+local response = {
+    csrf = ntop.getRandomCSRFValue()
+}
+
+if (action == "add") then
+    response.success, response.message = widget_utils.add_widget(data.name, data.ds_hash, data.type, params)
+elseif (action == "edit") then
+    response.success, response.message = widget_utils.edit_widget(data.widget_key, data.name, data.ds_hash, data.type, params)
+elseif (action == "remove") then
+    response.success, response.message = widget_utils.delete_widget(data.widget_key)
+else
+    traceError(TRACE_ERROR, TRACE_CONSOLE, "Invalid 'action' parameter.")
+    reportError("Invalid 'action' parameter.")
+    return
+end
+
+
+print(json.encode(response))