class Rack::Segment
Constants
- VERSION
Attributes
app[R]
key[R]
Public Class Methods
new(app, key: nil)
click to toggle source
# File lib/rack/segment.rb, line 5 def initialize(app, key: nil) @app, @key = app, key end
Public Instance Methods
_call(env)
click to toggle source
# File lib/rack/segment.rb, line 13 def _call(env) @status, @headers, @body = app.call(env) return [@status, @headers, @body] unless html_response? response = Rack::Response.new([], @status, @headers) @body.each { |fragment| response.write(inject_in(fragment)) } @body.close if @body.respond_to?(:close) response.finish end
call(env)
click to toggle source
# File lib/rack/segment.rb, line 9 def call(env) dup._call(env) end
Private Instance Methods
analytics_snippet()
click to toggle source
# File lib/rack/segment.rb, line 41 def analytics_snippet @analytics_snippet ||= <<-EOS <!-- Segment Start --> <script type="text/javascript"> !function(){var analytics=window.analytics=window.analytics||[];if(!analytics.initialize)if(analytics.invoked)window.console&&console.error&&console.error("Segment snippet included twice.");else{analytics.invoked=!0;analytics.methods=["trackSubmit","trackClick","trackLink","trackForm","pageview","identify","reset","group","track","ready","alias","page","once","off","on"];analytics.factory=function(t){return function(){var e=Array.prototype.slice.call(arguments);e.unshift(t);analytics.push(e);return analytics}};for(var t=0;t<analytics.methods.length;t++){var e=analytics.methods[t];analytics[e]=analytics.factory(e)}analytics.load=function(t){var e=document.createElement("script");e.type="text/javascript";e.async=!0;e.src=("https:"===document.location.protocol?"https://":"http://")+"cdn.segment.com/analytics.js/v1/"+t+"/analytics.min.js";var n=document.getElementsByTagName("script")[0];n.parentNode.insertBefore(e,n)};analytics.SNIPPET_VERSION="3.1.0"; analytics.load("#{key}"); analytics.page() }}(); </script> <!-- Segment End --> EOS end
close_head_tag_regex()
click to toggle source
# File lib/rack/segment.rb, line 37 def close_head_tag_regex %r{</head>}im end
html_response?()
click to toggle source
# File lib/rack/segment.rb, line 29 def html_response? @headers['Content-Type'] =~ %r{text/html} end
inject_in(response)
click to toggle source
# File lib/rack/segment.rb, line 33 def inject_in(response) response.sub(close_head_tag_regex, "#{analytics_snippet}\n\\0") end