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--
-- (C) 2019-22 - ntop.org
--
local alert_severities = require "alert_severities"
local alert_consts = require("alert_consts")
local alerts_api = require("alerts_api")
-- This is a user script executed by scripts/callbacks/system/system.lua .
-- Changes to this script must be applied by reloading the plugins from
-- http://127.0.0.1:3000/lua/plugins_overview.lua
local global_state = nil
-- #################################################################
local script = {
-- Script category, see checks.check_categories for all available categories
category = checks.check_categories.other,
-- This module is enabled by default
default_enabled = true,
-- The default configuration for this plugin. The current configuration
-- is passed to the script hooks as the second parameter.
default_value = {
-- This configuration is specific of this script
ip_address = "8.8.8.8",
v6 = false,
},
-- A user script must be attached some hooks in order to be executed.
-- This is only a placeholder, see below for the hooks definitions.
-- NOTE: the "all" hook is a virtual hook which causes the script to
-- be attached to all the available hooks.
hooks = {},
-- GUI specific stuff. If this section is missing, the user script
-- will not be shown in the gui.
gui = {
-- A title for this user script
i18n_title = "example.interface_script_title",
-- A description for this user script
i18n_description = "example.interface_script_description",
},
----------------------------------------------------------------------
-- If true, the script will be automatically disabled when alerts are
-- disabled.
-- If true, this script will only be executed on packet interfaces
packet_interface_only = false,
-- If true, this script will only be executed in nEdge
nedge_only = false,
-- If true, this script will not be executed in nEdge
nedge_exclude = false,
-- If true, this script will not be available on Windows.
windows_exclude = false,
}
-- #################################################################
-- @brief Called when the script is going to be loaded.
-- @return true if the script should be loaded, false otherwise
-- @notes Can be used to init some script global state or to skip the script
-- execution on some particular conditions
function script.setup()
local is_enabled = true -- your custom condition here
global_state = {}
return(is_enabled)
end
-- #################################################################
-- An hook executed every minute.
function script.hooks.min(info)
--tprint(info)
print("system:min hook called")
ntop.pingHost(info.check_config.ip_address, info.check_config.v6)
-- Wait results
ntop.msleep(2000)
local res = ntop.collectPingResults()
-- The alert entity must be built manually for system scripts
local alert_entity = {
alert_entity = alert_consts.alert_entities.am_host,
alert_entity_val = info.check_config.ip_address,
}
local alert_info = {
alert_type = alert_consts.alert_types.alert_example,
alert_severity = alert_severities.notice,
alert_granularity = info.granularity,
alert_type_params = {},
}
if(res[info.check_config.ip_address] ~= nil) then
print(string.format("Host %s is active", info.check_config.ip_address))
-- Release previously triggered alert (if any)
alerts_api.release(alert_entity, alert_info)
else
print(string.format("Host %s is down", info.check_config.ip_address))
-- Trigger alert
alerts_api.trigger(alert_entity, alert_info)
end
end
-- #################################################################
-- An hook executed every 5 minutes.
script.hooks["5mins"] = function(info)
print("system:5mins hook called")
end
-- #################################################################
-- An hook executed every hour.
function script.hooks.hour(info)
print("system:hour hook called")
end
-- #################################################################
-- An hook executed every day.
function script.hooks.day(info)
print("system:day hook called")
end
-- #################################################################
return script
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