WAZBlobs.dropzone

#!/usr/bin/ruby

# Dropzone Destination Info
# Name: WAZ Blobs
# Description: Upload your Blobs to Windows Azure Blobs service dragging and dropping your files to Dropzone.
# Handles: NSFilenamesPboardType
# Creator: Juan Pablo Garcia Dalolla
# URL: http://blogs.southworks.net/jpgarcia
# IconURL: http://waz-explorer.heroku.com/images/azure-logo.png
# Events: Dragged, Clicked
# OptionsNIB: Login
# LoginTitle: Windows Azure Login Details (account_name, access_key)

require 'rubygems'

WAZ_EXPLORER_URL = "http://waz-explorer.heroku.com/containers/dropzone/blobs"

def meet_gem_deps?
  dep = Gem::Dependency.new('waz-storage', Gem::Requirement.default)
  !Gem.source_index.search(dep).empty?
end

if !meet_gem_deps?
  $dz.error("waz-storage gem required!", "Install the required gem from a terminal:\r\n'sudo gem install waz-storage --source http://gemcutter.org'")
  $dz.url(false)  
else
  require 'waz-blobs'
end

def dragged
  begin
    $dz.determinate(true)

    WAZ::Storage::Base.establish_connection!( :account_name => ENV['USERNAME'], 
                                              :access_key => ENV['PASSWORD'])

    if !WAZ::Storage::Base.connected?
      $dz.error("Connection Failed!", "Check your Windows Azure account_name and access_key on Dropzone settings section.")
      $dz.url(false)
      return
    end

    container = WAZ::Blobs::Container.find('dropzone')
    container = WAZ::Blobs::Container.create('dropzone') if container.nil?
    container.public_access = true
      
    $items.each_with_index{ |item,i|
      $dz.begin("Storing item #{i+1}/#{$items.length} on Windows Azure...")          
      mimetype = IO.popen("file -Ib '#{item}'").readline.gsub(/\n/,"")
      mimetype = 'plain/text' if mimetype.empty?
      contents = ""
      File.open(item, 'r') { |file|  
        while line = file.gets  
         contents << line  
        end  
      }

      $dz.percent(((i+1).to_f/$items.length)*100)
      sleep(1)
      container.store(CGI.escape(File.basename(item)), contents, mimetype)
    }
  
    $dz.finish("#{$items.length} #{$items.length == 1 ? "Blob" : "Blobs"} uploaded.")
    $dz.url(WAZ_EXPLORER_URL)          
  rescue RestClient::RequestFailed
    $dz.error("Upload error!", "Check your Windows Azure account_name and access_key on Dropzone settings section.") if $!.message.match(/'HTTP status code 403'/)
    $dz.url(false)          
  rescue SocketError
    $dz.error("Upload error!", "Check your network connection.")
    $dz.url(false)      
  rescue
    $dz.error("WAZ Blobs error!", "View the debug console for for info 'Command-Shift-D'. [#{$!}]")    
    $dz.url(false)
  end
end

def clicked
  system("open #{WAZ_EXPLORER_URL}")
end