orbit-basic/app/controllers/desktop_widgets_controller.rb

class DesktopWidgetsController < OrbitBackendController
	require "net/http"
	require "uri"
  	require 'zip/zip'

	def index
	end

	def upload
	if !params[:desktop_widget].nil?
	    temp_file = Tempfile.new("temp_file")
	    original_file = params[:desktop_widget][:package_file]
	      #if original_file.content_type == 'application/zip'
	        temp_file.write(original_file.read.force_encoding('UTF-8'))
	        temp_file.rewind
	        filename = File.basename(original_file.original_filename,".zip")
	        unzip_widget(temp_file, filename)
	      #else
	      #  flash[:error] = "Upload file should be in zip format"
	      #end
	      temp_file.close
	 end
	end

	def unzip_widget(file, zip_name)
	    Zip::ZipFile.open(file) { |zip_file|
	      dw = DesktopWidget.new.from_json(zip_file.read("#{zip_name}/settings.json"))
	      Dir.mktmpdir('f_path') { |dir|
	        javascripts_entries = []
	        images_entries = []

	        zip_file.entries.each do |entry|
	          case (path = entry.to_s)
	            when /\A(#{zip_name})\/(default\.css)\z/
	                #for default css
	              dw.build_css_default(:file => get_temp_file(zip_file, dir, entry))
	            when /\A(#{zip_name})\/(widget\.html)\z/    #for layout html
	              dw.build_widget_layout(:file => get_temp_file(zip_file, dir, entry))
	            when /\A(#{zip_name})\/(javascripts)\/.*(\.js)\z/   #for js
	              javascripts_entries << entry
	            when /\A(#{zip_name})\/(images)\/.*((\.jpg)|(\.png)|(\.gif))\z/   #for img
	              images_entries << entry
	          end
	        end

	        ['javascripts', 'images'].each do |type|
	          eval("#{type}_entries").each do |entry|
	            eval("dw.#{type}").build(:file => get_temp_file(zip_file, dir, entry))
	          end
	        end
	      }
	      dw.save
	    }
  end
  def get_temp_file(zip_file, dir, entry)
    filename = File.basename(entry.to_s)
    temp_file = File.new(dir + '/' + filename, 'w+') 
    temp_file.write (zip_file.read entry ).force_encoding('UTF-8')
    temp_file
  end
	
end