Class: S3Antivirus::Scan

Inherits:
Object
  • Object
show all
Extended by:
Memoist
Includes:
AwsServices, Conf, Logger
Defined in:
lib/s3_antivirus/scan.rb

Instance Method Summary collapse

Methods included from Conf

#conf

Methods included from Logger

#logger

Methods included from AwsServices

#s3, #sns

Constructor Details

#initialize(options = {}) ⇒ Scan

Returns a new instance of Scan.



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# File 'lib/s3_antivirus/scan.rb', line 15

def initialize(options={})
  @options = options
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/s3_antivirus/scan.rb', line 19

def run
  logger.info "Polling SQS queue for S3 antivirus findings. Started #{Time.now}..."
  return if @options[:noop]

  poller = Aws::SQS::QueuePoller.new(conf['queue'])
  poller.poll do |msg|
    begin
      body = JSON.parse(msg.body)

      logger.debug "body #{body}"
      if body.key?('Records')
        body['Records'].each do |record|
          # Instance variables change on each iteration
          @s3_record = S3Record.new(record)
          @notifier = Notifier.new(@s3_record)
          @tagger = Tagger.new(@s3_record)

          logger.info("Checking #{@s3_record.human_key}")
          within_size_limit = check_file_size
          next unless within_size_limit # continue to next file because oversized
          filename = "/tmp/#{SecureRandom.uuid}"
          success = download_file(filename)
          next unless success # continue to next file because unable to download
          scan_file(filename)
        end
      end
    rescue Exception => e
      logger.error "message failed: #{e.inspect} #{msg.inspect}"
      raise e
    end
    # Sometimes stdout doesnt get shown but the message is processed file.
    # Know this because the SNS message gets sent.
    # Even this $stdout.flush doesn't seem to be enough.
    $stdout.flush
  end
end