Contents

# encoding: UTF-8
require 'css_parser'
require 'nokogiri'

class Galakei::DocomoCss::InlineStylesheet # :nodoc: all
  def self.filter(controller)
    return unless controller.request.imode_browser_1_0?
    doc = Nokogiri::HTML(controller.response.body)
    stylesheets = doc.xpath('//link[@rel="stylesheet"]')
    return if stylesheets.empty?
    Rails.logger.debug("[galakei] DoCoMo browser 1.0 and external stylesheets detected, inlining CSS")
    stylesheets.each do |e|
      e.unlink
      p = parser(e['href'])
      Galakei::DocomoCss::Stylesheet.new(p).apply(doc) if p
    end
    controller.response.body = doc.to_xhtml(:encoding => doc.encoding)
  end

  private
  def self.parser(href)
    parser = CssParser::Parser.new
    uri = URI.parse(href)
    asset_host = ActionController::Base.asset_host
    # Hack to handle if asset host is a proc. Call it with nil for all arguments.
    if asset_host.respond_to?(:call)
      asset_host = asset_host.call(*asset_host.arity.times.map { nil })
    end
    if /(#{asset_host}|^)\/assets\/([^?]+)/ =~ href
      asset_path = $2.sub(/-[0-9a-f]{32}.css$/, '.css')
      asset = Rails.application.assets.find_asset(asset_path)
      if asset
        parser.add_block!(asset.to_s, {:media_types => :all, :base_dir => File.dirname(href)})
      else
        Rails.logger.warn("[galakei] asset lookup for #{asset_path} failed, skipping")
      end
    elsif uri.host && uri.scheme && uri.port && uri.host
      parser.load_uri!(uri)
    else
      parser.load_file!(path(href))
    end
    return parser
  rescue URI::InvalidURIError
    Rails.logger.warn "[galakei] Invalid URI encountered #{href}"
    nil
  end

  def self.path(href)
    File.join(Rails.root, 'public', href.gsub(/\?\d+/,''))
  end
end

Version data entries

7 entries across 7 versions & 1 rubygems

Version	Path
galakei-0.15.2	lib/galakei/docomo_css/inline_stylesheet.rb
galakei-0.15.1	lib/galakei/docomo_css/inline_stylesheet.rb
galakei-0.15.0	lib/galakei/docomo_css/inline_stylesheet.rb
galakei-0.14.4	lib/galakei/docomo_css/inline_stylesheet.rb
galakei-0.14.3	lib/galakei/docomo_css/inline_stylesheet.rb
galakei-0.14.2	lib/galakei/docomo_css/inline_stylesheet.rb
galakei-0.14.1	lib/galakei/docomo_css/inline_stylesheet.rb