traffic extraction jobs page to list and delete jobs, pcap download endpoint

scripts/lua/traffic_extraction_data.lua

@@ -0,0 +1,118 @@
+--
+-- (C) 2013-18 - ntop.org
+--
+
+dirs = ntop.getDirs()
+
+package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
+require "lua_utils"
+local format_utils = require "format_utils"
+local recording_utils = require "recording_utils"
+local json = require "dkjson"
+
+sendHTTPHeader('application/json')
+
+if not recording_utils.isAvailable() then
+  return
+end
+
+-- ################################################
+-- Table parameters
+
+local currentPage  = _GET["currentPage"]
+local perPage      = _GET["perPage"]
+local sortColumn   = _GET["sortColumn"]
+local sortOrder    = _GET["sortOrder"]
+
+-- ################################################
+--  Sorting and Pagination
+
+local sortPrefs = "traffic_extraction_jobs"
+
+if isEmptyString(sortColumn) or sortColumn == "column_" then
+   sortColumn = getDefaultTableSort(sortPrefs)
+elseif sortColumn ~= "" then
+   tablePreferences("sort_"..sortPrefs, sortColumn)
+end
+
+if isEmptyString(_GET["sortColumn"]) then
+   sortOrder = getDefaultTableSortOrder(sortPrefs, true)
+end
+
+if _GET["sortColumn"] ~= "column_" and _GET["sortColumn"] ~= "" then
+   tablePreferences("sort_order_"..sortPrefs, sortOrder, true)
+end
+
+if currentPage == nil then
+   currentPage = 1
+else
+   currentPage = tonumber(currentPage)
+end
+
+if perPage == nil then
+   perPage = 10
+else
+   perPage = tonumber(perPage)
+   tablePreferences("rows_number_policies", perPage)
+end
+
+local to_skip = (currentPage-1) * perPage
+
+if sortOrder == "desc" then sOrder = rev_insensitive else sOrder = asc_insensitive end
+
+-- ################################################
+
+interface.select(ifname)
+
+local ifstats = interface.getStats()
+
+local jobs = recording_utils.getExtractionJobs(ifstats.id)
+
+local sorter = {}
+for id,job in pairs(jobs) do
+  sorter[id] = job.time
+end
+
+local res = {}
+local cur_num = 0
+for id, _ in pairsByValues(sorter, sOrder) do
+  cur_num = cur_num + 1
+  if cur_num <= to_skip then
+    goto continue
+  elseif cur_num > to_skip + perPage then
+    break
+  end
+
+  local job = jobs[id]
+
+  local action_links = "<a onclick='deleteJob("..job.id..")' style='cursor: pointer'><span class=\"label label-danger\">"..i18n("delete").."</span></a>"
+  if job.status == "completed" then
+    local job_files = recording_utils.getJobFiles(job.id)
+    if #job_files > 0 then
+      action_links = action_links.." <a href="..ntop.getHttpPrefix().."/lua/get_extracted_traffic.lua?job_id="..job.id.."><span class=\"label label-info\">"..i18n("download").."</span></a>"
+    end
+  end
+
+  res[#res + 1] = { 
+    column_id = job.id, 
+    column_job_time = format_utils.formatEpoch(job.time), 
+    column_status = job.status, -- job.error_code 
+    column_begin_time = format_utils.formatEpoch(job.time_from),
+    column_end_time = format_utils.formatEpoch(job.time_to),
+    column_bpf_filter = ternary(isEmptyString(job.filter), "-", job.filter),
+    column_extracted_packets = ternary(extracted_packets, extracted_packets, "-"),
+    column_extracted_bytes = ternary(extracted_bytes, bytesToSize(extracted_bytes), "-"),
+    column_actions = action_links
+  }
+
+  ::continue::
+end
+
+local result = {}
+result["perPage"] = perPage
+result["currentPage"] = currentPage
+result["totalRows"] = #res
+result["data"] = res
+result["sort"] = {{sortColumn, sortOrder}}
+
+print(json.encode(result))