Class: Rack::GridFSThumb

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/version.rb,
lib/rack/gridfs-thumb.rb

Constant Summary collapse

VERSION = 
'0.2.0'

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}) ⇒ GridFSThumb

Returns a new instance of GridFSThumb.



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# File 'lib/rack/gridfs-thumb.rb', line 6

def initialize(app, options = {})
  @app = app
  @options = default_options.merge(options)
  @gridfs = @options[:gridfs] || Rack::GridFS::Endpoint.new(@options)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/gridfs-thumb.rb', line 12

def call(env)
  @request = Rack::Request.new(env)

  response = catch(:respond) do
    match(@request.path_info) do |path, geometry|
      status, @headers, image = request_image(path)
      
      if geometry.nil?
        throw :respond, [status, @headers, image]
      end
      
      thumb = thumbnail(image, geometry)
      response_for(thumb)
    end
  end
  
  response || @app.call(env)
end

#route ⇒ Object 



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# File 'lib/rack/gridfs-thumb.rb', line 31

def route
  %r{(/#{@options[:prefix]}/[^/]+)/?([^/]+)?/?$}
end