Class: Rack::Codehighlighter

Inherits:
Object
  • Object
show all
Includes:
Utils
Defined in:
lib/rack/codehighlighter.rb

Constant Summary collapse

FORMAT =

for logging use

%{%s - [%s] [%s] "%s %s%s %s" (%s) %d %d %0.4f\n}

Instance Method Summary collapse

Constructor Details

#initialize(app, highlighter = :censor, opts = {}) ⇒ Codehighlighter

Returns a new instance of Codehighlighter.



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# File 'lib/rack/codehighlighter.rb', line 11

def initialize(app, highlighter = :censor, opts = {})
  @app = app
  @highlighter = highlighter
  @opts = {
    :element => "pre",
    :pattern => /\A:::(\w+)\s*(\n|
)/i,  # 
 == line feed
    :reason => "[[--  ugly code removed  --]]", #8-)
    :markdown => false  
  }
  @opts.merge! opts
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/codehighlighter.rb', line 23

def call(env)
  began_at = Time.now
  status, headers, response = @app.call(env)
  headers = HeaderHash.new(headers)

  if !STATUS_WITH_NO_ENTITY_BODY.include?(status) &&
     !headers['transfer-encoding'] &&
      headers['content-type'] &&
      headers['content-type'].include?("text/html")

    content = ""
    response.each { |part| content += part }
    doc = Nokogiri::HTML(content)
    nodes = doc.search(@opts[:element])
    nodes.each do |node|
      s = node.inner_html || "[++where is the code?++]"
      if @opts[:markdown]
        node.parent.swap(send(@highlighter, s))  
      else
        node.swap(send(@highlighter, s))            
      end
    end

    body = doc.to_html
    headers['content-length'] = bytesize(body).to_s

    log(env, status, headers, began_at) if @opts[:logging]
    [status, headers, [body]]
  else
    [status, headers, response]  
  end
end