Add user scripts getters

scripts/lua/get_user_script_config.lua

@@ -0,0 +1,86 @@
+--
+-- (C) 2019 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+require "lua_utils"
+local json = require("dkjson")
+local user_scripts = require("user_scripts")
+local alert_consts = require("alert_consts")
+
+sendHTTPContentTypeHeader('application/json')
+
+local stype = _GET["script_type"] or "traffic_element"
+local subdir = _GET["script_subdir"] or "host"
+local script_key = _GET["script_key"]
+local entity_value = _GET["entity_val"]
+
+local script_type = user_scripts.script_types[stype]
+
+if(script_type == nil) then
+  traceError(TRACE_ERROR, TRACE_CONSOLE, "Bad script_type: " .. stype)
+  return
+end
+
+if(script_key == nil) then
+  traceError(TRACE_ERROR, TRACE_CONSOLE, "Missing script_key parameter")
+  return
+end
+
+-- ################################################
+
+
+interface.select(getSystemInterfaceId())
+
+local script = user_scripts.loadModule(getSystemInterfaceId(), script_type, subdir, script_key)
+
+if(script == nil) then
+  traceError(TRACE_ERROR, TRACE_CONSOLE, "Unkown user script: " .. script_key)
+  return
+end
+
+local result = {
+  hooks = {},
+  gui = {},
+}
+
+if(script.gui) then
+  local known_fields = {i18n_title=1, i18n_description=1, i18n_field_unit=1, input_builder=1, post_handler=1}
+
+  for field, val in pairs(script.gui) do
+    if not known_fields[field] then
+      result.gui[field] = val
+    end
+  end
+
+  if(script.gui.i18n_field_unit) then
+    result.gui.fields_unit = i18n(script.gui.i18n_field_unit)
+  end
+
+  if(script.gui.input_builder == user_scripts.threshold_cross_input_builder) then -- TODO make generic
+    result.gui.input_builder = "threshold_cross"
+  end
+end
+
+for _, hook in pairs(script_type.hooks) do
+  local conf = user_scripts.getConfiguration(script, hook, entity_value)
+
+  if(conf ~= nil) then
+    local granularity_info = alert_consts.alerts_granularities[hook]
+    local label = nil
+
+    if(granularity_info) then
+      label = i18n(granularity_info.i18n_title)
+    end
+
+    result.hooks[hook] = table.merge(conf, {
+      label = label,
+    })
+  end
+end
+
+-- ################################################
+
+print(json.encode(result))