Class: Rack::Clicky

Inherits:
Object
  • Object
show all
Defined in:
lib/rack_clicky.rb

Constant Summary collapse

TRACKING_CODE = 
<<-EOTC 
<script src="http://static.getclicky.com/js" type="text/javascript"></script>
<script type="text/javascript">clicky.init({{CODE}});</script>
<noscript><p><img alt="Clicky" width="1" height="1" src="http://in.getclicky.com/{{CODE}}ns.gif" /></p></noscript>
EOT

Instance Method Summary collapse

Constructor Details

#initialize(app, site_id, options = {}) ⇒ Clicky

Returns a new instance of Clicky.



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# File 'lib/rack_clicky.rb', line 12

def initialize app, site_id, options={}
  @app = app
  @site_id = site_id
end

Instance Method Details

#_call(env) ⇒ Object 



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# File 'lib/rack_clicky.rb', line 21

def _call env
  status, headers, response = @app.call(env)

  if should_inject_clicky? status, headers, response
    response = inject_tracking(response)
    fix_content_length(headers, response)
  end

  [status, headers, response]
end

#call(env) ⇒ Object 



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# File 'lib/rack_clicky.rb', line 17

def call env
  dup._call(env)
end

#fix_content_length(headers, response) ⇒ Object 



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# File 'lib/rack_clicky.rb', line 38

def fix_content_length headers, response
  if headers["Content-Length"]
    length = response.to_ary.inject(0) { |len, part| len + Rack::Utils.bytesize(part) }
    headers['Content-Length'] = length.to_s
  end
end

#inject_tracking(response, body = "") ⇒ Object 



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# File 'lib/rack_clicky.rb', line 45

def inject_tracking response, body=""
  response.each { |s| body << s.to_s }
  [body.gsub(/<\/body>/, "#{track_code}\n</body>")]
end

#should_inject_clicky?(status, headers, response) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack_clicky.rb', line 32

def should_inject_clicky? status, headers, response
  status == 200 &&
  headers["Content-Type"] &&
  (headers["Content-Type"].include?("text/html") || headers["Content-Type"].include?("application/xhtml"))
end