Module: Lookout::Rack::Utils::Request

Defined in:
lib/lookout/rack/utils/request.rb

Constant Summary collapse

ILLEGAL_CHARS_REGEX = 
/[<>]/
HTTP_CONTENT_ENCODING_KEY = 
"HTTP_CONTENT_ENCODING".freeze
CONTENT_ENCODING_GZIPPED = 
"gzip".freeze

Instance Method Summary collapse

Instance Method Details

#body_as_json ⇒ Object

Process and parse the request body as JSON

Will halt and create a a 400 status code if there is something wrong with the body



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# File 'lib/lookout/rack/utils/request.rb', line 44

def body_as_json
  body = raw_body

  halt 400, { :error => t('error.body_was_nil') }.to_json if body.nil?
  halt 400, { :error => t('error.body_was_blank') }.to_json if body.blank?

  begin
    return JSON.parse(body)
  rescue JSON::ParserError
    if defined?(Lookout::Rack::Utils::Log)
      Lookout::Rack::Utils::Log.instance.warn "ParserError encountered parsing the request body (#{body})"
    end
    halt 400, "{}"
  end
end

#gunzipped_body ⇒ String

Return the body, which is gunzipped only if the appropriate header is set on the request

Will halt and create a a 400 status code if there is something wrong with the body

Returns:

  • (String) 


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# File 'lib/lookout/rack/utils/request.rb', line 24

def gunzipped_body
  body = raw_body
  if request.env[HTTP_CONTENT_ENCODING_KEY] != CONTENT_ENCODING_GZIPPED
    return body
  else
    begin
      return gunzip(body)
    rescue Zlib::Error
      if defined?(Lookout::Rack::Utils::Log)
        Lookout::Rack::Utils::Log.instance.warn "Unzipping error when decompressing request body (#{body})"
      end
      halt 400, "{}"
    end
  end
end

#raw_body ⇒ String

Return the raw, unprocessed request body

Returns:

  • (String) 


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# File 'lib/lookout/rack/utils/request.rb', line 12

def raw_body
  # Rewind the StringIO object in case somebody else read it first
  request.body.rewind
  return request.body.read
end