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Size: 1.58 KB
Versions: 42
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Stored size: 1.58 KB
Contents
module Para
module IframeTransport
class Middleware
attr_reader :app
def initialize(app)
@app = app
end
def call(env)
status, headers, response_body = app.call(env)
# Build a rails request to allow using its API to analyze the request
# format and mode
request = ActionDispatch::Request.new(
Rails.application.env_config.merge(env)
)
# If the request is an Ajax IFrame tranport one, we add a hidden field
# to the response body to pass response informations that can't be
# retrieved with headers to the javascript client.
if matching_request?(request)
add_status_to_response(request, response_body)
end
[status, headers, response_body]
end
private
def matching_request?(request)
request.iframe_request? && request.format.html?
end
def add_status_to_response(request, response_body)
response = response_body.instance_variable_get(:@response)
html = Nokogiri::HTML::DocumentFragment.parse(response.body)
input = Nokogiri::XML::Node.new("input", html).tap do |node|
node[:type] = 'hidden'
node[:'data-iframe-response-data'] = true
node[:'data-type'] = request.format
node[:'data-status'] = response.status
node[:'data-statusText'] = response.status_message
end
if (body = html.at('body'))
input.parent = body
else
html << input
end
response.body = html.to_html
end
end
end
end
Version data entries
42 entries across 42 versions & 1 rubygems