mirror of
https://github.com/ntop/ntopng.git
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100 lines
2.9 KiB
Lua
100 lines
2.9 KiB
Lua
--
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-- (C) 2019-20 - ntop.org
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--
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local alert_keys = require "alert_keys"
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local format_utils = require("format_utils")
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-- #######################################################
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-- @brief Prepare an alert table used to generate the alert
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-- @param alert_severity A severity as defined in `alert_consts.alert_severities`
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-- @param alert_granularity A granularity as defined in `alert_consts.alerts_granularities`
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-- @param value A number indicating the measure which crossed the threshold
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-- @param threshold A number indicating the threshold compared with `value` using operator
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-- @param ip A string with the ip address of the host crossing the threshold
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-- @param host A string with the host key
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-- @param operator A string indicating the operator used when evaluating the threshold, one of "gt", ">", "<"
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-- @param unit The unit of measure of value and threshold
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-- @return A table with the alert built
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local function createActiveMonitoringTxCross(alert_severity, alert_granularity, value, threshold, ip, host, operator, unit)
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local threshold_type = {
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alert_severity = alert_severity,
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alert_granularity = alert_granularity,
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alert_type_params = {
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value = value,
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threshold = threshold,
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ip = ip,
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host = host,
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operator = operator,
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unit = unit
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},
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}
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return threshold_type
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end
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-- #######################################################
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local function thresholdCrossFormatter(ifid, alert, info)
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local msg
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local host = info.host
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local numeric_ip = info.ip
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local ip_label = host and host.label or numeric_ip
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if numeric_ip ~= host.host then
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numeric_ip = string.format("(%s)", numeric_ip)
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else
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numeric_ip = ""
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end
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if(info.value == 0) then -- host unreachable
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if(info.alt_i18n) then
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-- The measurement may have defined a custom message via unreachable_alert_i18n
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msg = i18n(info.alt_i18n) or info.alt_i18n
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end
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-- Fallback
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if isEmptyString(msg) then
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msg = i18n("alert_messages.ping_host_unreachable_v3",
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{host = ip_label,
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numeric_ip = numeric_ip})
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end
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else -- host too slow
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if info.operator == "lt" then
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i18n_s = "alert_messages.measurement_too_low_msg"
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else
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i18n_s = "alert_messages.measurement_too_high_msg"
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end
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local unit = "active_monitoring_stats.msec"
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if info.unit then
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unit = info.unit
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end
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unit = i18n(unit) or unit
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local msg_table = {
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host = ip_label,
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numeric_ip = numeric_ip,
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am_value = format_utils.round(info.value, 2),
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threshold = info.threshold,
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unit = unit,
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}
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msg = i18n(i18n_s, msg_table)
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end
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return msg
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end
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-- #######################################################
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return {
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alert_key = alert_keys.ntopng.alert_am_threshold_cross,
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i18n_title = "graphs.active_monitoring",
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i18n_description = thresholdCrossFormatter,
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icon = "fas fa-exclamation",
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creator = createActiveMonitoringTxCross,
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}
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