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Migrates alerts to an object-oriented implementation

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matteo 2020-12-22 12:58:51 +01:00
parent c1a7ff08ae
commit fbc283f12f
108 changed files with 2793 additions and 1737 deletions
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65
scripts/lua/modules/alert_definitions/alert_potentially_dangerous_protocol.lua
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@ -2,52 +2,41 @@
-- (C) 2019-20 - ntop.org
--
-- ##############################################
local alert_keys = require "alert_keys"
local status_keys = require "flow_keys"
-- Import the classes library.
local classes = require "classes"
-- Make sure to import the Superclass!
local alert = require "alert"
-- ##############################################
local alert_potentially_dangerous_protocol = classes.class(alert)
-- ##############################################
alert_potentially_dangerous_protocol.meta = {
status_key = status_keys.ntopng.status_potentially_dangerous,
alert_key = alert_keys.ntopng.alert_potentially_dangerous_protocol,
i18n_title = "flow_details.potentially_dangerous_protocol",
icon = "fas fa-exclamation",
}
-- ##############################################
-- #######################################################
-- @brief Prepare an alert table used to generate the alert
-- @param tls_version A string indicating the TLS version detected, or nil when version is not available
-- @param tls_info A lua table with TLS info gererated calling `flow.getTLSInfo()`
-- @return A table with the alert built
function alert_potentially_dangerous_protocol:init()
-- Call the parent constructor
self.super:init()
local function createPotentiallyDangerous(tls_version, tls_info)
tls_info = tls_info or {}
local server_cn = tls_info["protos.tls.server_names"] or ""
local client_cn = tls_info["protos.tls.client_requested_server_name"] or ""
self.alert_type_params = {
-- No params
local built = {
alert_type_params = {
tls_version = tls_version,
["tls_crt.cli"] = client_cn,
["tls_crt.srv"] = server_cn,
["tls_crt.notBefore"] = tls_info["protos.tls.notBefore"],
["tls_crt.notAfter"] = tls_info["protos.tls.notAfter"],
["tls_crt.issuerDN"] = tls_info["protos.tls.issuerDN"] or "",
["tls_crt.now"] = os.time(),
["cli_ja3_signature"] = tls_info["protos.tls.ja3.client_hash"],
}
}
return built
end
-- #######################################################
-- @brief Format an alert into a human-readable string
-- @param ifid The integer interface id of the generated alert
-- @param alert The alert description table, including alert data such as the generating entity, timestamp, granularity, type
-- @param alert_type_params Table `alert_type_params` as built in the `:init` method
-- @return A human-readable string
function alert_potentially_dangerous_protocol.format(ifid, alert, alert_type_params)
return i18n("flow_details.potentially_dangerous_protocol")
end
-- #######################################################
return alert_potentially_dangerous_protocol
return {
alert_key = alert_keys.ntopng.alert_potentially_dangerous_protocol,
i18n_title = "alerts_dashboard.potentially_dangerous_protocol",
i18n_description = "alert_messages.potentially_dangerous_protocol_description",
icon = "fas fa-exclamation",
creator = createPotentiallyDangerous,
}