Implements internals_utils and add hash table filtering

scripts/lua/modules/internals_utils.lua

@@ -0,0 +1,113 @@
+--
+-- (C) 2019 - ntop.org
+--
+
+local format_utils = require("format_utils")
+local internals_utils = {}
+local json = require "dkjson"
+local dirs = ntop.getDirs()
+
+-- ###########################################
+
+function internals_utils.printHashTablesDropdown(base_url, page_params)
+   local hash_table = _GET["hash_table"]
+   local hash_table_filter
+   if not isEmptyString(hash_table) then
+      hash_table_filter = '<span class="glyphicon glyphicon-filter"></span>'
+   else
+      hash_table_filter = ''
+   end
+   local hash_table_params = table.clone(page_params)
+   hash_table_params["hash_table"] = nil
+
+   print[[\
+      <button class="btn btn-link dropdown-toggle" data-toggle="dropdown">]] print(i18n("internals.hash_table")) print[[]] print(hash_table_filter) print[[<span class="caret"></span></button>\
+      <ul class="dropdown-menu" role="menu" id="flow_dropdown">\]]
+
+   print[[<li><a href="]] print(getPageUrl(base_url, hash_table_params)) print[[">]] print(i18n("internals.all_hash_tables")) print[[</a></li>\]]
+
+   for ht, stats in pairsByKeys(interface.getHashTablesStats(), asc) do
+      print[[ <li]] if hash_table == ht then print(' class="active"') end print[[><a href="]] hash_table_params["hash_table"] = ht; print(getPageUrl(base_url, hash_table_params)); print[[">]] print(i18n("hash_table."..ht)) print[[</a></li>\]]
+   end
+end
+
+-- ###########################################
+
+function internals_utils.printHashTablesTable(base_url)
+   local page_params = {hash_table = _GET["hash_table"]}
+
+   print[[
+<div id="table-system-interfaces-stats"></div>
+<script type='text/javascript'>
+
+$("#table-system-interfaces-stats").datatable({
+   title: "]] print(i18n("internals.hash_tables")) print[[",]]
+
+   local preference = tablePreferences("rows_number",_GET["perPage"])
+   if preference ~= "" then print ('perPage: '..preference.. ",\n") end
+
+   print[[
+   showPagination: true,
+   buttons: [ ]]
+
+   -- Ip version selector
+   print[['<div class="btn-group pull-right">]]
+   internals_utils.printHashTablesDropdown(base_url, page_params)
+   print[[</div>']]
+
+   print[[ ],
+   url: "]] print(getPageUrl(ntop.getHttpPrefix().."/lua/get_internals_hash_tables_stats.lua?iffilter=all", page_params)) print[[",
+   columns: [
+     {
+       field: "column_key",
+       hidden: true,
+     }, {
+       field: "column_ifid",
+       hidden: true,
+     }, {
+       title: "]] print(i18n("interface")) print[[",
+       field: "column_name",
+       sortable: true,
+       css: {
+	 textAlign: 'left',
+	 width: '5%',
+       }
+     }, {
+       title: "]] print(i18n("internals.hash_table")) print[[",
+       field: "column_hash_table_name",
+       sortable: true,
+       css: {
+	 textAlign: 'left',
+	 width: '10%',
+       }
+     }, {
+       title: "]] print(i18n("internals.state_active")) print[[",
+       field: "column_active_entries",
+       sortable: true,
+       css: {
+	 textAlign: 'right',
+	 width: '5%',
+       }
+     }, {
+       title: "]] print(i18n("internals.state_idle")) print[[",
+       field: "column_idle_entries",
+       sortable: true,
+       css: {
+	 textAlign: 'right',
+	 width: '5%',
+       }
+     }
+   ], tableCallback: function() {
+      datatableInitRefreshRows($("#table-system-interfaces-stats"),
+			       "column_key", 5000,
+			       {"column_active_entries": addCommas,
+				"column_idle_entries": addCommas});
+   },
+});
+</script>
+ ]]
+end
+
+-- ###########################################
+
+return internals_utils