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--
-- (C) 2020-22 - ntop.org
--
local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
require "lua_utils"
local alert_entities = require "alert_entities"
local alert_consts = require "alert_consts"
local tag_utils = {}
-- Operator Separator in query strings
tag_utils.SEPARATOR = ';'
-- #####################################
-- Supported operators
tag_utils.tag_operators = {
["eq"] = "=",
["neq"] = "!=",
["lt"] = "<",
["gt"] = ">",
["gte"] = ">=",
["lte"] = "<=",
["in"] = i18n("has"),
["nin"] = i18n("does_not_have"),
}
-- #####################################
tag_utils.defined_tags = {
l7proto = {
value_type = 'l7_proto',
i18n_label = i18n('db_search.tags.l7_proto'),
operators = {'eq', 'neq'}
},
l7proto_master = {
value_type = 'l7_proto',
i18n_label = i18n('db_search.tags.l7_proto'),
operators = {'eq', 'neq'},
hide = true,
},
l7cat = {
value_type = 'l7_category',
i18n_label = i18n('db_search.tags.l7cat'),
operators = {'eq', 'neq'}
},
flow_risk = {
value_type = 'flow_risk',
i18n_label = i18n('db_search.tags.flow_risk'),
operators = {'eq', 'neq', 'in', 'nin'}
},
status = {
value_type = 'alert_type',
i18n_label = i18n('db_search.tags.status'),
operators = {'eq', 'neq'}
},
l4proto = {
value_type = 'l4_proto',
i18n_label = i18n('db_search.tags.l4proto'),
operators = {'eq', 'neq'}
},
ip = {
value_type = 'ip',
i18n_label = i18n('db_search.tags.ip'),
operators = {'eq', 'neq'}
},
cli_ip = {
value_type = 'ip',
i18n_label = i18n('db_search.tags.cli_ip'),
operators = {'eq', 'neq'}
},
cli_location = {
value_type = 'location',
i18n_label = i18n('db_search.tags.cli_location'),
operators = {'eq', 'neq'}
},
srv_ip = {
value_type = 'ip',
i18n_label = i18n('db_search.tags.srv_ip'),
operators = {'eq', 'neq'}
},
srv_location = {
value_type = 'location',
i18n_label = i18n('db_search.tags.srv_location'),
operators = {'eq', 'neq'}
},
cli_name = {
value_type = 'hostname',
i18n_label = i18n('db_search.tags.cli_name'),
operators = {'eq', 'neq', 'in', 'nin'}
},
srv_name = {
value_type = 'hostname',
i18n_label = i18n('db_search.tags.srv_name'),
operators = {'eq', 'neq', 'in', 'nin'}
},
src2dst_dscp = {
value_type = 'dscp_type',
i18n_label = i18n('db_search.tags.src2dst_dscp'),
operators = {'eq', 'neq'}
},
dst2src_dscp = {
value_type = 'dscp_type',
i18n_label = i18n('db_search.tags.dst2src_dscp'),
operators = {'eq', 'neq'}
},
cli_port = {
value_type = 'port',
i18n_label = i18n('db_search.tags.cli_port'),
operators = {'eq', 'neq', 'lt', 'gt', 'gte', 'lte'}
},
srv_port = {
value_type = 'port',
i18n_label = i18n('db_search.tags.srv_port'),
operators = {'eq', 'neq', 'lt', 'gt', 'gte', 'lte'}
},
cli_asn = {
value_type = 'asn',
i18n_label = i18n('db_search.tags.cli_asn'),
operators = {'eq', 'neq'}
},
srv_asn = {
value_type = 'asn',
i18n_label = i18n('db_search.tags.srv_asn'),
operators = {'eq', 'neq'}
},
cli_nw_latency = {
value_type = 'nw_latency_type',
i18n_label = i18n('db_search.tags.cli_nw_latency'),
operators = {'eq', 'lt', 'gt', 'lte', 'gte'}
},
srv_nw_latency = {
value_type = 'nw_latency_type',
i18n_label = i18n('db_search.tags.srv_nw_latency'),
operators = {'eq', 'lt', 'gt', 'lte', 'gte'}
},
observation_point_id = {
value_type = 'observation_point_id',
i18n_label = i18n('db_search.tags.observation_point_id'),
operators = {'eq', 'neq'}
},
probe_ip = {
value_type = 'ip',
i18n_label = i18n('db_search.tags.probe_ip'),
operators = {'eq', 'neq'}
},
vlan_id = {
value_type = 'id',
i18n_label = i18n('db_search.tags.vlan_id'),
operators = {'eq', 'neq', 'lt', 'gt', 'gte', 'lte'}
},
input_snmp = {
value_type = 'snmp_interface',
i18n_label = i18n('db_search.tags.input_snmp'),
operators = {'eq', 'neq'}
},
output_snmp = {
value_type = 'snmp_interface',
i18n_label = i18n('db_search.tags.output_snmp'),
operators = {'eq', 'neq'}
},
src2dst_tcp_flags = {
value_type = 'flags',
i18n_label = i18n('db_search.src2dst_tcp_flags'),
operators = {'eq', 'neq', 'in', 'nin'}
},
dst2src_tcp_flags = {
value_type = 'flags',
i18n_label = i18n('db_search.dst2src_tcp_flags'),
operators = {'eq', 'neq', 'in', 'nin'}
},
score = {
value_type = 'score',
i18n_label = i18n('db_search.tags.score'),
operators = {'eq', 'neq','lt', 'gt', 'gte', 'lte'}
},
cli_mac = {
value_type = 'mac',
i18n_label = i18n('db_search.tags.cli_mac'),
operators = {'eq', 'neq'}
},
srv_mac = {
value_type = 'mac',
i18n_label = i18n('db_search.tags.srv_mac'),
operators = {'eq', 'neq'}
},
cli_network = {
value_type = 'network_id',
i18n_label = i18n('db_search.tags.cli_network'),
operators = {'eq', 'neq'}
},
srv_network = {
value_type = 'network_id',
i18n_label = i18n('db_search.tags.srv_network'),
operators = {'eq', 'neq'}
},
info = {
value_type = 'text',
i18n_label = i18n('db_search.tags.info'),
operators = {'eq', 'neq', 'in', 'nin'}
},
bytes = {
value_type = 'bytes',
i18n_label = i18n('db_search.tags.bytes'),
operators = {'eq', 'neq', 'lt', 'gt', 'gte', 'lte'}
},
packets = {
value_type = 'packets',
i18n_label = i18n('db_search.tags.packets'),
operators = {'eq', 'neq', 'lt', 'gt', 'gte', 'lte'}
},
cli_host_pool_id = {
value_type = 'host_pool_id',
i18n_label = i18n('db_search.tags.cli_host_pool_id'),
operators = {'eq', 'neq', 'lt', 'gt', 'gte', 'lte'}
},
srv_host_pool_id = {
value_type = 'host_pool_id',
i18n_label = i18n('db_search.tags.srv_host_pool_id'),
operators = {'eq', 'neq', 'lt', 'gt', 'gte', 'lte'}
},
}
-- #####################################
tag_utils.ip_location = {
{ label = "Remote", id = 0 },
{ label = "Local", id = 1 },
{ label = "Multicast", id = 2},
}
-- #####################################
function tag_utils.get_tag_filters_from_request()
local filters = {}
for key, value in pairs(tag_utils.defined_tags) do
if _GET[key] ~= nil then
filters[key] = _GET[key]
end
end
return filters
end
-- ##############################################
--@brief Evaluate operator
function tag_utils.eval_op(v1, op, v2)
local default_verdict = true
-- Convert boolean for compatibility
if type(v1) == 'boolean' then
if v1 then v1 = 1 else v1 = 0 end
end
if not v1 or not v2 then
return default_verdict
end
if op == 'eq' then
return v1 == v2
elseif op == 'neq' then
return v1 ~= v2
elseif op == 'lt' then
return v1 < v2
elseif op == 'gt' then
return v1 > v2
elseif op == 'gte' then
return v1 >= v2
elseif op == 'lte' then
return v1 <= v2
elseif op == 'in' then
v_and = v1 & v2
return v1 == v_and
elseif op == 'nin' then
v_and = v1 & v2
return v1 ~= v_and
end
return default_verdict
end
-- #####################################
tag_utils.formatters = {
l4proto = function(proto) return l4_proto_to_string(proto) end,
l7_proto = function(proto) return interface.getnDPIProtoName(tonumber(proto)) end,
l7proto = function(proto) return interface.getnDPIProtoName(tonumber(proto)) end,
l7cat = function(cat) return interface.getnDPICategoryName(tonumber(cat)) end,
severity = function(severity) return (i18n(alert_consts.alertSeverityById(tonumber(severity)).i18n_title)) end,
status = function(status) return alert_consts.alertTypeLabel(status, true, alert_entities.flow.entity_id) end,
role = function(role) return (i18n(role)) end,
role_cli_srv = function(role) return (i18n(role)) end,
flow_risk = function(risk)
local flow_risk_list = ntop.getRiskList() or {}
flow_risk_list[1] = i18n("flow_risk.ndpi_no_risk")
return flow_risk_list[tonumber(risk)+1] or risk
end,
}
-- ######################################
function tag_utils.add_tag_if_valid(tags, tag_key, operators, i18n_prefix)
if isEmptyString(_GET[tag_key]) then
return
end
local get_value = _GET[tag_key]
local list = split(get_value, ',')
for _,item in ipairs(list) do
local selected_operator = 'eq'
local splitted = split(item, tag_utils.SEPARATOR)
local realValue
if #splitted == 2 then
realValue = splitted[1]
selected_operator = splitted[2]
end
local value = realValue
if tag_utils.formatters[tag_key] ~= nil then
value = tag_utils.formatters[tag_key](value)
end
tag = {
realValue = realValue,
value = value,
label = i18n(i18n_prefix .. "." .. tag_key),
key = tag_key,
operators = operators,
selectedOperator = selected_operator
}
table.insert(tags, tag)
end
end
-- #####################################
return tag_utils
|
