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Contents
# encoding: utf-8
module SimpleCaptcha
class Middleware
include SimpleCaptcha::ImageHelpers
DEFAULT_SEND_FILE_OPTIONS = {
:type => 'application/octet-stream'.freeze,
:disposition => 'attachment'.freeze,
}.freeze
def initialize(app, options={})
@app = app
self
end
def call(env) # :nodoc:
if env["REQUEST_METHOD"] == "GET" && captcha_path?(env['PATH_INFO'])
make_image(env)
else
@app.call(env)
end
end
protected
def make_image(env, headers = {}, status = 404)
request = Rack::Request.new(env)
code = request.params["code"]
body = []
if !code.blank? && Utils::simple_captcha_value(code)
#status, headers, body = @app.call(env)
#status = 200
#body = generate_simple_captcha_image(code)
#headers['Content-Type'] = 'image/jpeg'
return send_file(generate_simple_captcha_image(code), :type => 'image/jpeg', :disposition => 'inline', :filename => 'simple_captcha.jpg')
end
[status, headers, body]
end
def captcha_path?(request_path)
request_path.include?('/simple_captcha')
end
def send_file(path, options = {})
raise MissingFile, "Cannot read file #{path}" unless File.file?(path) and File.readable?(path)
options[:filename] ||= File.basename(path) unless options[:url_based_filename]
status = options[:status] || 200
headers = {"Content-Disposition" => "#{options[:disposition]}; filename='#{options[:filename]}'", "Content-Type" => options[:type], 'Content-Transfer-Encoding' => 'binary', 'Cache-Control' => 'private'}
response_body = File.open(path, "rb")
[status, headers, response_body]
end
end
end
Version data entries
28 entries across 28 versions & 9 rubygems