Module: Fiveruns::Tuneup::AssetTags

Included in:
Fiveruns::Tuneup
Defined in:
lib/fiveruns/tuneup/asset_tags.rb

Instance Method Summary collapse

Instance Method Details

#add_asset_tags_to(response) ⇒ Object 



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# File 'lib/fiveruns/tuneup/asset_tags.rb', line 6

def add_asset_tags_to(response)
  return unless show_for?(response)
  before, after = response.body.split(/<\/head>/i, 2)
  if after
    insertion = %(
    <!-- START FIVERUNS TUNEUP ASSETS -->
    <link rel="stylesheet" type="text/css" href="/stylesheets/tuneup/tuneup.css" />
    <script type="text/javascript"> var TuneUp = {}; </script>
    <script type="text/javascript" src="/javascripts/tuneup/init.js"></script>
    <!-- END FIVERUNS TUNEUP ASSETS -->
    )
    add_content_length(response, insertion.size)
    body = [before, insertion, '</head>', after].join('').html_safe!
    response.body.replace(body)
    log :error, "Inserted asset tags"
  else
    log :error, "Could not find closing </head> tag for insertion"
  end
end

#add_content_length(response, delta) ⇒ Object

Modify the Content-Length header, regardless if String/Fixnum, and keep it the same type



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# File 'lib/fiveruns/tuneup/asset_tags.rb', line 39

def add_content_length(response, delta)
  length = response.headers["Content-Length"]
  response.headers["Content-Length"] = case length
  when Fixnum
    length + delta
  when String
    (length.to_i + delta).to_s
  else
    length # Shouldn't happen
  end
end

#insert_prototype ⇒ Object 



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# File 'lib/fiveruns/tuneup/asset_tags.rb', line 33

def insert_prototype
  "<script type='text/javascript' src='/javascripts/tuneup/prototype.js'></script>"
end

#show_for?(response) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fiveruns/tuneup/asset_tags.rb', line 26

def show_for?(response)
  return false unless response.body
  return true if response.headers['ETag'] && response.headers['Content-Type'].to_s.include?('html')
  return false unless response.headers['Status'] && response.headers['Status'].include?('200')
  true
end