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71 lines
2 KiB
Lua
71 lines
2 KiB
Lua
--
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-- (C) 2013-21 - ntop.org
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--
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local dirs = ntop.getDirs()
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package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
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package.path = dirs.installdir .. "/scripts/lua/modules/alert_store/?.lua;" .. package.path
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require "lua_utils"
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local auth = require "auth"
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local alert_consts = require("alert_consts")
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local alert_entities = require "alert_entities"
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local rest_utils = require "rest_utils"
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local checks = require "checks"
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--
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-- Trigger a custom host alert
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-- Example: curl -u admin:admin -H "Content-Type: application/json" -d '{"ifid": 0, "host": "192.168.2.134", "vlan": 0, "score": 100, "info": "Custom alert triggered through the REST API"}' http://localhost:3000/lua/rest/v2/trigger/host/alert.lua
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--
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-- NOTE: in case of invalid login, no error is returned but redirected to login
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--
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local rc = rest_utils.consts.success.ok
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local ifid = _POST["ifid"]
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local hostinfo = url2hostinfo(_POST)
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local score = _POST["score"] or "0"
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local info = _POST["info"]
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if not auth.has_capability(auth.capabilities.alerts) then
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rest_utils.answer(rest_utils.consts.err.not_granted)
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return
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end
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if not checks.isCheckEnabled("host", "external_host_script") then
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rest_utils.answer(rest_utils.consts.err.not_enabled)
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return
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end
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if isEmptyString(ifid) then
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rc = rest_utils.consts.err.invalid_interface
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rest_utils.answer(rc)
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return
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end
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if isEmptyString(hostinfo['host']) or
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isEmptyString(info) then
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rc = rest_utils.consts.err.invalid_args
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rest_utils.answer(rc)
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return
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end
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interface.select(ifid)
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local host_key = hostinfo2hostkey(hostinfo)
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score = tonumber(score)
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-- Notes:
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-- - This triggers the alert directly from Lua
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-- - This does not require the host to be live, however some metadata may be missing as it is not augmented with host data from C++
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local alert = alert_consts.alert_types.host_alert_external_script.new(info)
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alert:set_score(score)
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alert:set_subtype(host_key)
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local alert_info = {
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entity_val = host_key,
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alert_entity = alert_entities.host
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}
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alert:store(alert_info)
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rest_utils.answer(rc, {})
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