Module: PageParser

Defined in:
lib/get_tapas/page_parser.rb

Class Method Summary collapse

Class Method Details

.parse(html_string) ⇒ Object

Returns an array of DownloadLink instances.

Parameters:

Returns:

  • an array of DownloadLink instances.



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# File 'lib/get_tapas/page_parser.rb', line 17

def self.parse(html_string)
  html_doc = Nokogiri::HTML(html_string)
  html_links = html_doc.xpath("//*[contains(@class, 'video-download-link')]")

  if html_links.empty?
    raise "No screencast links found. Are you sure about the input HTML source?"
  else
    html_links.map do |link|
      url         = link.children.first.attributes['href'].value
      description = link.children.first.text.strip
      filename    = ruby_tapas_url_to_filename(url)
      DownloadLink.new(url, filename, description)
    end
  end
end

.ruby_tapas_url_to_filename(url) ⇒ Object

Example Input: “rubytapas-media.s3.amazonaws.com/298-file-find.mp4?response-content-disposition=… Example Return: ‘298-file-find.mp4’



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# File 'lib/get_tapas/page_parser.rb', line 10

def self.ruby_tapas_url_to_filename(url)
  url.split('?').first.split('/').last
end