Class: DocmagoClient::HTMLResourceArchiver

Inherits:
Object
  • Object
show all
Defined in:
lib/docmago_client/html_resource_archiver.rb

Constant Summary collapse

SPROCKETS_RX = 
%r{^/assets/}
URI_RX = 
/url\(("([^"]*)"|'([^']*)'|([^)]*))\)/im

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ HTMLResourceArchiver

Returns a new instance of HTMLResourceArchiver.



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# File 'lib/docmago_client/html_resource_archiver.rb', line 19

def initialize(options = {})
  @html = options[:content]
  @base_path = options[:resource_path]
  @assets = options[:assets]

  @doc = Nokogiri::HTML(@html)
end

Instance Method Details

#create_zip(file_path) ⇒ Object 



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# File 'lib/docmago_client/html_resource_archiver.rb', line 27

def create_zip(file_path)
  Zip::File.open(file_path, Zip::File::CREATE) do |zipfile|
    zipfile.get_output_stream('document.html') { |f| f.write @html }

    fetch_uris.each do |uri|
      uri = Addressable::URI.parse uri.to_s.strip
      path_digest = Digest::MD5.hexdigest(uri.to_s)

      file_data = open(uri).read if uri.absolute?
      file_data ||= File.read(resolve_uri(uri)) if File.exist?(resolve_uri(uri))
      file_data ||= @assets[normalize_uri(uri).gsub(SPROCKETS_RX, '')].to_s

      if File.extname(normalize_uri(uri)) == '.css'
        # embed resources within css
        file_data.scan(URI_RX).flatten.compact.uniq.each do |resource|
          resource_uri = Addressable::URI.parse resource.to_s.strip
          resource_path_digest = Digest::MD5.hexdigest(resource_uri.to_s)

          resource_file = open(resource_uri).read if resource_uri.absolute?
          resource_file = File.read(resolve_uri(resource_uri)) if File.exist?(resolve_uri(resource_uri))
          resource_file ||= @assets[normalize_uri(resource_uri).gsub(SPROCKETS_RX, '')].to_s

          zipfile.get_output_stream(resource_path_digest) { |f| f.write resource_file } if resource_file
        end
      end

      zipfile.get_output_stream(path_digest) { |f| f.write file_data } if file_data
    end
  end

  file_path
end