Class: ISPMonitor::Checks::DownloadCheck

Inherits:
BaseCheck
  • Object
show all
Defined in:
lib/isp_monitor/checks/download_check.rb

Constant Summary collapse

DEFAULT_URL = 
"https://gist.githubusercontent.com/khaykov/a6105154becce4c0530da38e723c2330/raw/41ab415ac41c93a198f7da5b47d604956157c5c3/gistfile1.txt"

Instance Attribute Summary collapse

Attributes inherited from BaseCheck

#config, #interval, #name

Instance Method Summary collapse

Methods inherited from BaseCheck

#run

Constructor Details

#initialize(config) ⇒ DownloadCheck

Returns a new instance of DownloadCheck.



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# File 'lib/isp_monitor/checks/download_check.rb', line 6

def initialize(config)
  super(config)
  @url = config.fetch(:url, DEFAULT_URL)
end

Instance Attribute Details

#url ⇒ Object (readonly)

Returns the value of attribute url.



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# File 'lib/isp_monitor/checks/download_check.rb', line 2

def url
  @url
end

Instance Method Details

#check ⇒ Object 



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# File 'lib/isp_monitor/checks/download_check.rb', line 11

def check
  log_event 'download-speed', download(url)
end

#download(url) ⇒ Object 



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# File 'lib/isp_monitor/checks/download_check.rb', line 15

def download(url)
  uri = URI(url)

  start_at = nil
  end_at = nil
  size_bytes = 0

  res = Net::HTTP.start(uri.hostname, use_ssl: uri.scheme == "https") do |http|
    req = Net::HTTP::Get.new(uri)
    start_at = Time.current

    http.request(req) do |res|
      res.read_body do |chunk|
        size_bytes += chunk.bytesize
      end
      end_at = Time.current
    end
  end

  duration_s = end_at - start_at
  bits = size_bytes * 8
  throughput_bps = bits / duration_s
  size_mb = size_bytes / 1024.0 / 1024.0
  throughput_mbps = throughput_bps / 1000.0 / 1000.0

  {
    url:,
    hostname: uri.hostname,
    duration_s:,
    size_bytes:,
    size_mb: size_mb.round(2),
    throughput_bps: throughput_bps.round(2),
    throughput_mbps: throughput_mbps.round(2),
    response_code: res.code,
    response_headers: res.to_hash,
  }
end