Adds new REST API v2/

Addresses #5269

scripts/lua/rest/v2/get/system/alert/list.lua

@@ -0,0 +1,54 @@
+--
+-- (C) 2021-21 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+package.path = dirs.installdir .. "/scripts/lua/modules/alert_store/?.lua;" .. package.path
+
+local format_utils = require "format_utils"
+local alert_utils = require "alert_utils"
+local alert_consts = require "alert_consts"
+local alert_entities = require "alert_entities"
+local rest_utils = require("rest_utils")
+local system_alert_store = require "system_alert_store".new()
+local auth = require "auth"
+
+--
+-- Read alerts data
+-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"ifid": "1"}' http://localhost:3000/lua/rest/v2/get/system/alert/list.lua
+--
+-- NOTE: in case of invalid login, no error is returned but redirected to login
+--
+
+local rc = rest_utils.consts.success.ok
+local res = {}
+
+local format = _GET["format"] or "json"
+local no_html = (format == "txt")
+
+if not auth.has_capability(auth.capabilities.alerts) then
+   rest_utils.answer(rest_utils.consts.err.not_granted)
+   return
+end
+
+interface.select(getSystemInterfaceId())
+
+-- Fetch the results
+local alerts, recordsFiltered = system_alert_store:select_request()
+
+for _key,_value in ipairs(alerts or {}) do
+   local record = system_alert_store:format_record(_value, no_html)
+   res[#res + 1] = record
+end -- for
+
+if no_html then
+   res = system_alert_store:to_csv(res)   
+   rest_utils.vanilla_payload_response(rc, res, "text/csv")
+else
+   rest_utils.extended_answer(rc, {records = res}, {
+				 ["draw"] = tonumber(_GET["draw"]),
+				 ["recordsFiltered"] = recordsFiltered,
+				 ["recordsTotal"] = #res
+						   }, format)
+end

scripts/lua/rest/v2/get/system/alert/ts.lua

@@ -0,0 +1,34 @@
+--
+-- (C) 2013-21 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+package.path = dirs.installdir .. "/scripts/lua/modules/alert_store/?.lua;" .. package.path
+
+local alert_utils = require "alert_utils"
+local alert_consts = require "alert_consts"
+local alert_entities = require "alert_entities"
+local rest_utils = require("rest_utils")
+local system_alert_store = require "system_alert_store".new()
+local auth = require "auth"
+
+--
+-- Read alerts data
+-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"ifid": "1"}' http://localhost:3000/lua/rest/v2/get/system/alert/ts.lua
+--
+-- NOTE: in case of invalid login, no error is returned but redirected to login
+--
+
+local rc = rest_utils.consts.success.ok
+
+if not auth.has_capability(auth.capabilities.alerts) then
+   rest_utils.answer(rest_utils.consts.err.not_granted)
+   return
+end
+
+interface.select(getSystemInterfaceId())
+
+local res = system_alert_store:count_by_severity_and_time_request()
+
+rest_utils.answer(rc, res)

scripts/lua/rest/v2/get/system/pools.lua

@@ -0,0 +1,12 @@
+--
+-- (C) 2013-21 - ntop.org
+--
+
+local dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+package.path = dirs.installdir .. "/scripts/lua/modules/pools/?.lua;" .. package.path
+
+local system_pools = require "system_pools"
+local pools_rest_utils = require "pools_rest_utils"
+
+pools_rest_utils.get_pools(system_pools)

scripts/lua/rest/v2/get/system/stats.lua

@@ -0,0 +1,34 @@
+--
+-- (C) 2013-21 - ntop.org
+--
+
+dirs = ntop.getDirs()
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+
+require "lua_utils"
+local json = require ("dkjson")
+local page_utils = require("page_utils")
+local tracker = require("tracker")
+local storage_utils = require("storage_utils")
+local cpu_utils = require("cpu_utils")
+local rest_utils = require("rest_utils")
+
+--
+-- Read system statistics
+-- Example: curl -u admin:admin -H "Content-Type: application/json" http://localhost:3000/lua/rest/v2/get/system/stats.lua
+--
+-- NOTE: in case of invalid login, no error is returned but redirected to login
+--
+
+if not isAllowedSystemInterface() then
+   rc = rest_utils.consts.err.not_granted
+   rest_utils.answer(rc)
+   return
+end
+
+local rc = rest_utils.consts.success.ok
+local res = cpu_utils.systemHostStats()
+res.epoch = os.time()
+res.storage = storage_utils.storageInfo()
+
+rest_utils.answer(rc, res)