Class: Shutterbug::Rackapp

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

Instance Method Summary collapse

Constructor Details

#initialize(app) {|@config| ... } ⇒ Rackapp

Returns a new instance of Rackapp.

Yields:

  • (@config) 


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# File 'lib/shutterbug/rackapp.rb', line 6

def initialize(app, &block)
  @config = Configuration.instance
  yield @config if block_given?
  @app = app
  @shutterbug = Service.new(@config)
  log "initialized"
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/shutterbug/rackapp.rb', line 25

def call env
  req = Rack::Request.new(env)
  case req.path
  when @config.convert_regex
    do_convert(req)
  when @config.png_regex
    good_response(@shutterbug.get_png_file($1),'image/png')
  when @config.html_regex
    good_response(@shutterbug.get_html_file($1),'text/html')
  when @config.js_regex
    good_response(@shutterbug.get_shutterbug_file, 'application/javascript')
  else
    skip(env)
  end
end

#do_convert(req) ⇒ Object 



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# File 'lib/shutterbug/rackapp.rb', line 14

def do_convert(req)
  html     = req.POST()['content']  ||  ""
  width    = req.POST()['width']    || 1000
  height   = req.POST()['height']   ||  700
  css      = req.POST()['css']      ||  ""

  signature = @shutterbug.convert(@config.base_url(req), html, css, width, height)
  response_text = "<img src='#{@config.png_path(signature)}' alt='#{signature}'>"
  return good_response(response_text,'text/plain')
end