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45 lines
1.2 KiB
Lua
45 lines
1.2 KiB
Lua
--
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-- (C) 2019-20 - ntop.org
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--
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local alerts_api = require("alerts_api")
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local alert_consts = require("alert_consts")
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local user_scripts = require("user_scripts")
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local script = {
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-- Script category
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category = user_scripts.script_categories.network,
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local_only = true,
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default_enabled = false,
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-- This script is only for alerts generation
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is_alert = true,
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-- See below
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hooks = {},
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gui = {
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i18n_title = "alerts_thresholds_config.dns_traffic",
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i18n_description = "alerts_thresholds_config.alert_dns_description",
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i18n_field_unit = user_scripts.field_units.bytes,
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input_builder = "threshold_cross",
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},
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env = {
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dns_app_id = interface.getnDPIProtoId("DNS")
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}
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}
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-- #################################################################
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function script.hooks.all(params)
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local value = alerts_api.host_delta_val(script.key, params.granularity, host.getApplicationBytes(script.env.dns_app_id))
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-- Check if the configured threshold is crossed by the value and possibly trigger an alert
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alerts_api.checkThresholdAlert(params, alert_consts.alert_types.alert_threshold_cross, value)
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end
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-- #################################################################
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return script
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