Class: Capybara::Session

Inherits:
Object
  • Object
show all
Defined in:
lib/kimurai/capybara_ext/session.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#spider ⇒ Object

Returns the value of attribute spider.



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# File 'lib/kimurai/capybara_ext/session.rb', line 8

def spider
  @spider
end

Instance Method Details

#current_response(response_type = :html) ⇒ Object 



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# File 'lib/kimurai/capybara_ext/session.rb', line 88

def current_response(response_type = :html)
  case response_type
  when :html
    if config.encoding
      if config.encoding == :auto
        charset = body.force_encoding("ISO-8859-1").encode("UTF-8")[/<meta.*?charset=["]?([\w+\d+\-]*)/i, 1]
        Nokogiri::HTML(body, nil, charset)
      else
        Nokogiri::HTML(body, nil, config.encoding)
      end
    else
      Nokogiri::HTML(body)
    end
  when :json
    JSON.parse(body)
  end
end

#destroy_driver! ⇒ Object 



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# File 'lib/kimurai/capybara_ext/session.rb', line 60

def destroy_driver!
  if @driver
    begin
      @driver.quit
    # handle Net::ReadTimeout error for Selenium like drivers
    rescue Net::ReadTimeout => e
      @driver.quit
    end

    @driver = nil
    logger.info "Browser: driver #{mode} has been destroyed"
  else
    logger.warn "Browser: driver #{mode} is not present"
  end
end

#original_visit ⇒ Object 



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# File 'lib/kimurai/capybara_ext/session.rb', line 10

alias_method :original_visit, :visit

#restart! ⇒ Object 



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# File 'lib/kimurai/capybara_ext/session.rb', line 76

def restart!
  if mode.match?(/poltergeist/)
    @driver.browser.restart
    @driver.requests, @driver.responses = 0, 0
  else
    destroy_driver!
    driver
  end

  logger.info "Browser: driver has been restarted: name: #{mode}, pid: #{driver.pid}, port: #{driver.port}"
end

#scroll_to_bottom ⇒ Object 



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# File 'lib/kimurai/capybara_ext/session.rb', line 139

def scroll_to_bottom
  execute_script("window.scrollBy(0,10000)")
end

#visit(visit_uri, delay: config.before_request[:delay], skip_request_options: false, max_retries: 3) ⇒ Object 



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# File 'lib/kimurai/capybara_ext/session.rb', line 11

def visit(visit_uri, delay: config.before_request[:delay], skip_request_options: false, max_retries: 3)
  if spider
    process_delay(delay) if delay
    retries, sleep_interval = 0, 0

    begin
      check_request_options(visit_uri) unless skip_request_options
      driver.requests += 1 and logger.info "Browser: started get request to: #{visit_uri}"
      spider.class.update(:visits, :requests) if spider.with_info

      original_visit(visit_uri)
    rescue => e
      if match_error?(e, type: :to_skip)
        logger.error "Browser: skip request error: #{e.inspect}, url: #{visit_uri}"
        spider.add_event(:requests_errors, e.inspect) if spider.with_info
        false
      elsif match_error?(e, type: :to_retry)
        logger.error "Browser: retry request error: #{e.inspect}, url: #{visit_uri}"
        spider.add_event(:requests_errors, e.inspect) if spider.with_info

        if (retries += 1) <= max_retries
          logger.info "Browser: sleep #{(sleep_interval += 15)} seconds and process retry № #{retries} to the url: #{visit_uri}"
          sleep sleep_interval and retry
        else
          logger.error "Browser: all retries (#{retries - 1}) to the url #{visit_uri} are gone"
          raise e unless skip_error_on_failure?(e)
        end
      else
        raise e
      end
    else
      driver.responses += 1 and logger.info "Browser: finished get request to: #{visit_uri}"
      spider.class.update(:visits, :responses) if spider.with_info
      driver.visited = true unless driver.visited
      true
    ensure
      if spider.with_info
        logger.info "Info: visits: requests: #{spider.class.visits[:requests]}, responses: #{spider.class.visits[:responses]}"
      end

      if memory = driver.current_memory
        logger.debug "Browser: driver.current_memory: #{memory}"
      end
    end
  else
    original_visit(visit_uri)
  end
end

#within_new_window_by(action: nil, url: nil) ⇒ Object

end



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# File 'lib/kimurai/capybara_ext/session.rb', line 119

def within_new_window_by(action: nil, url: nil)
  case
  when action
    opened_window = window_opened_by { action.call }
    within_window(opened_window) do
      yield
      current_window.close
    end
  when url
    within_window(open_new_window) do
      visit(url)

      yield
      current_window.close
    end
  end
end