Add facebook plugin

lib/viddl-rb.rb

@@ -26,8 +26,8 @@ def self.io=(io_object)
   #set the default PluginBase io object to a StringIO instance.
   #this will suppress any standard output from the plugins.
   self.io = StringIO.new
-  
-  #returns an array of hashes containing the download url(s) and filenames(s) 
+
+  #returns an array of hashes containing the download url(s) and filenames(s)
   #for the specified video url.
   #if the url does not match any plugin, return nil and if a plugin
   #throws an error, throw PluginError.
@@ -36,7 +36,7 @@ def self.io=(io_object)
   def self.get_urls_names(url)
     plugin = PluginBase.registered_plugins.find { |p| p.matches_provider?(url) }
 
-    if plugin 
+    if plugin
       begin
         #we'll end up with an array of hashes with they keys :url and :name
         urls_filenames = plugin.get_urls_and_filenames(url)

plugins/facebook.rb

@@ -0,0 +1,25 @@
+require 'uri'
+require 'cgi'
+
+class Facebook < PluginBase
+
+  #this will be called by the main app to check whether this plugin is responsible for the url passed
+  def self.matches_provider?(url)
+    url.include?("facebook.com")
+  end
+
+  def self.get_urls_and_filenames(url, options = {})
+    video_page = open(url).read
+
+    title = video_page.scan(/<title.+>(.+)<\/title>/).flatten.first
+
+    download_url = video_page[/https.*.mp4/].gsub(/\\u([\da-fA-F]{4})/) {|m| [$1].pack("H*").unpack("n*").pack("U*")}
+    download_url = CGI::unescape(download_url)
+    download_url = URI::extract(download_url.gsub('\\', '')).first
+
+    file_name = PluginBase.make_filename_safe(title) + '.mp4'
+
+    [{:url => download_url, :name => file_name}]
+  end
+end
+

plugins/youtube/ciphers.yml

@@ -97,4 +97,3 @@ en_US-vflbJnZqE: w26 s1 w15 w3 w62 w54 w22
 en_US-vflgd5txb: w26 s1 w15 w3 w62 w54 w22
 en_US-vflTm330y: w26 s1 w15 w3 w62 w54 w22
 en_US-vflnwMARr: s3 r w24 s2
-en_US-vflaTh7jt: w46 r s3 w19 r s2 w15

spec/integration/url_extraction_spec.rb

@@ -102,6 +102,12 @@ def test_instagram
     can_download_test(result) { |url_output| http_code_grabber(CGI::unescape(url_output), {:method => :get}) }
   end
 
+  def test_facebook
+    result = `ruby bin/viddl-rb "https://www.facebook.com/photo.php?v=101503003357454&set=vb.310080259100701&type=2&theater" --url-only`
+    assert_equal $?, 0
+    can_download_test(result) { |url_output| http_code_grabber(CGI::unescape(url_output), {:method => :get}) }
+  end
+
   # NOTE: The Metacafe tests are skipped because plugin is currently broken.
 
   def test_metacafe
@@ -131,7 +137,8 @@ def test_dailymotion_hq
 
   def can_download_test(result, &grabber)
     url_output = result.split("\n").last
-    assert_includes(CGI.unescape(url_output), 'http://')
+    # Assert url includes http:// or https://
+    assert((CGI.unescape(url_output) =~ /https?:\/\//) != nil)
     code_grabber = grabber || proc { |url_output| http_code_grabber(url_output) }
     tries = 0
     http_response_code = 0