Sha256: 009ff53f222c88e4d0e7a1d823d35463940399375284659ff55a5b99813d8e62
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Size: 1.23 KB
Versions: 13
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Stored size: 1.23 KB
Contents
module Locomotive
module Middlewares
class ImageThumbnail
PATH = '_image_thumbnail'
def initialize(app, opts = {})
@app = app
end
def call(env)
if env['PATH_INFO'] == self.class.route
request = Rack::Request.new(env)
image, format = request.params['image'], request.params['format']
if thumb = make_thumb(image, format)
respond(thumb)
else
respond('', 422)
end
else
@app.call(env)
end
end
def self.route
Locomotive.mounted_on + '/' + PATH
end
private
def make_thumb(image, format)
return nil if image.blank? || format.blank?
file = Locomotive::Dragonfly.app.fetch_url(image)
begin
if image.starts_with?('data') # base64
file.apply.content.process!(:thumb, format).b64_data
else
file.thumb(format).url
end
rescue ArgumentError => e
Locomotive.log "[image thumbnail] error = #{e.message}"
nil
end
end
def respond(response = '', status = 200)
[status, { 'Content-Type' => 'text/plain' }, [response]]
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems