Module: SolarisNetstatParser

Included in:
SolarisPorts
Defined in:
lib/utils/parser.rb

Instance Method Summary collapse

Instance Method Details

#parse_netstat(content) ⇒ Object

takes this as a input and parses the values UDP: IPv4

Local Address        Remote Address      State

——————– ——————– ———-

*.*                                 Unbound



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# File 'lib/utils/parser.rb', line 102

def parse_netstat(content) # rubocop:disable Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity, Metrics/AbcSize
  return [] if content.nil? || content.empty?

  protocol = nil
  column_widths = nil
  ports = []
  cache_name_line = nil

  content.each_line { |line|
    # find header, its delimiter
    if line =~ /TCP:|UDP:|SCTP:/
      # get protocol
      protocol = line.split(':')[0].chomp.strip.downcase

      # determine version tcp, tcp6, udp, udp6
      proto_version = line.split(':')[1].chomp.strip
      protocol += '6' if proto_version == 'IPv6'

      # reset names cache
      column_widths = nil
      cache_name_line = nil
      names = nil
    # calulate width of a column based on the horizontal line
    elsif line =~ /^[- ]+$/
      column_widths = columns(line)
    # parse header values from line
    elsif column_widths.nil? && !line.nil?
      # we do not know the width at this point of time, therefore we need to cache
      cache_name_line = line
    # content line
    elsif !column_widths.nil? && !line.nil? && !line.chomp.empty?
      # default row
      port = split_columns(column_widths, line).to_a.map { |v| v.chomp.strip }

      # parse the header names
      # TODO: names should be optional
      names = split_columns(column_widths, cache_name_line).to_a.map { |v| v.chomp.strip.downcase.tr(' ', '-').gsub(/[^\w-]/, '_') }
      info = {
        'protocol' => protocol.downcase,
      }

      # generate hash for each line and use the names as keys
      names.each_index { |i|
        info[names[i]] = port[i] if i != 0
      }

      ports.push(info)
    end
  }
  ports
end