Sinatra Uploads

require 'sinatra'
require 'aws/s3'

get '/' do
  haml :upload
end

post '/' do
  unless params[:file] && (tmpfile = params[:file][:tempfile]) && (name = params[:file][:filename])
    return haml(:upload)
  end
  while blk = tmpfile.read(65536)
    if settings.environment == :production
      AWS::S3::Base.establish_connection!(
        :access_key_id     => ENV['S3_KEY'],
        :secret_access_key => ENV['S3_SECRET']
      )
      AWS::S3::S3Object.store(name,open(tmpfile),ENV['S3_BUCKET'],:access => :public_read)
    else
      File.open(File.join(Dir.pwd,"public/images", name), "wb") { |f| f.write(tmpfile.read) }
    end      
  end
  redirect '/'
end

__END__

@@ upload

%h2 Upload
%form{:action=>"/upload",:method=>"post",:enctype=>"multipart/form-data"}
  %input{:type=>"file",:name=>"file"}
  %input{:type=>"submit",:value=>"Upload"}