mirror of
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42 lines
988 B
Lua
42 lines
988 B
Lua
--
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-- (C) 2021 - ntop.org
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--
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local connectivity_utils = {}
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-- #################################
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connectivity_utils.DEFAULT_URL = "https://github.com"
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-- Check internet connectivity
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-- @return true on success, false otherwise
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function connectivity_utils.checkConnectivity()
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local max_retry = 2
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local timeout = 3 -- seconds
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local success = false
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local url_key = "ntopng.prefs.connectivity_check_url"
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local url = ntop.getCache(url_key)
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if not url or url == '' then
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url = connectivity_utils.DEFAULT_URL
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end
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local i = 0
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while i < max_retry and not success do
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local rsp = ntop.httpGet(url, "", "", timeout)
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if not rsp['RESPONSE_CODE'] or rsp['RESPONSE_CODE'] == 0 then
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-- Timeout
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i = i + 1
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else
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--traceError(TRACE_NORMAL, TRACE_CONSOLE, "Online (" .. url .. " is reachable)")
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success = true
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end
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end
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return success
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end
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-- #################################
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return connectivity_utils
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