66 lines
1.3 KiB
Ruby
66 lines
1.3 KiB
Ruby
require 'sinatra/base'
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require 'sinatra/flash'
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require 'sinatra/content_for'
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require 'avm/image'
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require 'coderay'
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require 'pp'
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class AVMExample < Sinatra::Base
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use Rack::Session::Cookie, :key => 'avm.session',
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:path => '/',
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:expire_after => 60
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set :root, File.dirname(__FILE__)
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register Sinatra::Flash
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helpers Sinatra::ContentFor
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helpers do
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def uploaded?
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@is_uploaded ||= ensure_uploaded_xmp
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end
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def tempfile
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ensure_uploaded_xmp
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@tempfile
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end
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def filename
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ensure_uploaded_xmp
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@filename
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end
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end
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post '/upload' do
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redirect_with_warn("No file provided!") if !uploaded?
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begin
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@image = AVM::Image.from_xml(params[:file][:tempfile].read)
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redirect_with_warn("Bad XMP file!") if !@image.valid?
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rescue StandardError => e
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redirect_with_warn("Error reading XMP file!")
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$stderr.puts e.to_s
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end
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flash[:info] = %{File processed! Data structure is <a href="#data">below</a>.}
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haml :print_data
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end
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get %r{^/?$} do
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haml :index
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end
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private
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def redirect_with_warn(warning)
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flash[:warn] = warning
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redirect '/'
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end
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def ensure_uploaded_xmp
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return false if !params[:file]
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return false if !(@tempfile = params[:file][:tempfile])
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return false if !(@filename = params[:file][:filename])
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true
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end
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end
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