app/controllers/image_resource_controller.rb

   1 class ImageResourceController < BaseController
   2   before_filter :set_mobile_spec
   3
   4   #caches_page :show
   5   def show
   6     if params[:filename]
   7       @res = ImageResource.find_by_name(params[:filename])
   8     end
   9     if params[:id]
  10       @res ||= ImageResource.find_by_id(params[:id])
  11     end
  12     raise ActiveRecord::RecordNotFound unless @res
  13     if @mobile_spec && @mobile_spec  =~ /^(\d+)x(\d+)$/
  14       if params[:width].present? || params[:height].present?
  15         width, height = [params[:width].to_i, params[:height].to_i]
  16       else
  17         width, height = [$1.to_i, $2.to_i]
  18       end
  19       send_file @res, @res.scaled_image(width, height)
  20     else
  21       send_file @res, @res.view
  22     end
  23   end
  24
  25   def thumbnail
  26   end
  27
  28   private
  29
  30   def send_file(res, data)
  31     raise ActiveRecord::RecordNotFound unless res
  32     raise ActiveRecord::RecordNotFound unless data
  33     content_type = res.content_type
  34     if request.mobile?
  35       content_type.gsub!(/pjpeg/, "jpeg")
  36     end
  37     send_data(data, :type => content_type, :disposition => 'inline')
  38   end
  39
  40   MOBILE_SPEC = Hash[*File.read("#{RAILS_ROOT}/db/migrate/fixed_data/mobile_specs.txt").split(/\n/).compact.map{|a|a.split(/\t/)[0...2]}.flatten]
  41
  42   def set_mobile_spec
  43     begin
  44       if request.mobile?
  45         ua = request.user_agent || ''
  46         @mobile_spec = case request.mobile
  47                        when Jpmobile::Mobile::Docomo
  48                          MOBILE_SPEC["i/#{$1}"] if ua =~ %r{^DoCoMo/(?:1.0/|2.0 )(\w+)}
  49                        when Jpmobile::Mobile::Au
  50                          MOBILE_SPEC["a/#{$1}"] if ua =~ %r{^(?:KDDI-|UP\.Browser/.*?-)(\w+)}
  51                        when Jpmobile::Mobile::Softbank
  52                          MOBILE_SPEC["s/#{$1}"] if ua =~ %r{^((.*?)/(.*?)/[\w-]+)}
  53                        end
  54         if @mobile_device
  55           @mobile_spec = "#{@mobile_device.width}x#{@mobile_device.height}"
  56         end
  57         @mobile_spec ||= "240x320"
  58       end
  59     rescue NoMethodError
  60       # テストのときは user_agent メソッドがない
  61       if request.mobile?
  62         @mobile_spec ||= "240x320" if is_mobile?
  63       end
  64     end
  65   end
  66 end