class SocialNet::Facebook::Api::ScrapeRequest

Public Class Methods

new(attrs = {}) click to toggle source
# File lib/social_net/facebook/api/scrape_request.rb, line 12
def initialize(attrs = {})
  @host = 'www.facebook.com'
  @username = attrs[:username]
  @video_id = attrs[:video_id]
  @path = attrs.fetch :path, "/#{attrs[:username]}/videos/#{attrs[:video_id]}/"
  @method = attrs.fetch :method, :get
end

Public Instance Methods

run() click to toggle source
# File lib/social_net/facebook/api/scrape_request.rb, line 20
def run
  print "#{as_curl}\n"
  case response = run_http_request
  when Net::HTTPOK
    data_string = Nokogiri::HTML response.body
    parse_video_data data_string
  else
    raise Errors::ResponseError, response
  end
end

Private Instance Methods

as_curl() click to toggle source
# File lib/social_net/facebook/api/scrape_request.rb, line 60
def as_curl
  'curl'.tap do |curl|
    curl <<  " -X #{http_request.method}"
    http_request.each_header do |name, value|
      curl << %Q{ -H "#{name}: #{value}"}
    end
    curl << %Q{ -d '#{http_request.body}'} if http_request.body
    curl << %Q{ "#{@uri.to_s}"}
  end
end
http_request() click to toggle source
# File lib/social_net/facebook/api/scrape_request.rb, line 38
def http_request
  http_class = "Net::HTTP::#{@method.capitalize}".constantize
  @http_request ||= http_class.new(uri.request_uri)
end
parse_video_data(data) click to toggle source
# File lib/social_net/facebook/api/scrape_request.rb, line 47
def parse_video_data(data)
  m = data.content.match(/hd_src:"([^\\"]*)"/)

  raise Errors::UnknownVideo unless m
  {}.tap do |video|
    video['id'] = @video_id
    video['video_url'] = data.at("meta[property='og:url']")['content']
    video['link'] = m[1]
    video['caption'] = data.at("meta[name='description']")['content']
    video['thumbnail_url'] = data.at("meta[property='og:image']")['content']
  end
end
run_http_request() click to toggle source
# File lib/social_net/facebook/api/scrape_request.rb, line 32
def run_http_request
  Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
    http.request http_request
  end
end
uri() click to toggle source
# File lib/social_net/facebook/api/scrape_request.rb, line 43
def uri
  @uri ||= URI::HTTPS.build host: @host, path: @path
end