GH#2 setup for tweeting after successful show load

Gemfile

@@ -20,6 +20,8 @@ gem 'meta_search'
 gem 'compass'
 # browser detection
 gem 'browser'
+# twitter api
+gem 'grackle'
 
 group :test, :development do
   # rspec for all testing

Gemfile.lock

@@ -47,6 +47,10 @@ GEM
       factory_girl (~> 2.1.0)
       railties (>= 3.0.0)
     fssm (0.2.7)
+    grackle (0.1.10)
+      json
+      mime-types
+      oauth
     haml (3.1.3)
     has_scope (0.5.1)
     i18n (0.5.0)
@@ -66,6 +70,7 @@ GEM
       arel (~> 2.0.2)
     mime-types (1.16)
     nokogiri (1.5.0)
+    oauth (0.4.5)
     pg (0.11.0)
     polyglot (0.3.2)
     rack (1.2.4)
@@ -122,6 +127,7 @@ DEPENDENCIES
   browser
   compass
   factory_girl_rails
+  grackle
   haml
   inherited_resources
   meta_search

README.rdoc

@@ -31,6 +31,15 @@ link:noagenda_dashboard/blob/master/config/locales/en.yml
 To provide a tranlsation for a given language, just grab a copy of this file, rename is <language-code>.yml,
 translate all the definitions and send it/push it back. Please keep it in UTF-8 character set though.
 
+== Enabling Twitter Notifications
+
+The site will tweet when new shows are loaded. It requires twitter oauth settings to be set
+with these environment variables:
+* navd_consumer_key
+* consumer_secret
+* navd_token
+* navd_token_secret
+
 == Contributing
 
 Yes please! If you have any ideas, or can help with design, development or translation, you are most welcome.

app/models/show.rb

@@ -58,4 +58,8 @@ def meme_stat
     self.class.meme_stats(self.id)
   end
 
+  # Returns an announcement message formated for posting to twitter
+  def twitter_publish_message
+    "#NoAgenda show ##{number} attack vectors now at http://noagendadashboard.com"
+  end
 end

lib/navd/scraper/control.rb

@@ -46,6 +46,7 @@ def load_show(number,reload=false)
               :description => show_note[:description]
             )
           end
+          notify_new_show(show)
           return true
         else
           log "#{number}: show already published - cannot reload"
@@ -57,5 +58,32 @@ def load_show(number,reload=false)
       end
     end
 
+    protected
+
+    # Post notification of new show.
+    # Currently posts to twitter.
+    def notify_new_show(show)
+      if config = twitter_oauth_config
+        client = Grackle::Client.new(config)
+        client.statuses.update! :status=>show.twitter_publish_message
+      else
+        log "#{show.try(:number)}: cannot post to twitter - missing config"
+      end
+    rescue => e
+      log "#{show.try(:number)}: failed to post to twitter #{e}"
+    end
+
+    # Returns twitter oauth config. Gets settings from ENV vars.
+    # Returns nil if no config available.
+    def twitter_oauth_config
+      if (consumer_key = ENV['navd_consumer_key']) && (consumer_secret = ENV['navd_consumer_secret']) &&
+        (token = ENV['navd_token']) && (token_secret = ENV['navd_token_secret'])
+        {:auth=>{
+          :type=>:oauth,
+          :consumer_key=>consumer_key, :consumer_secret=>consumer_secret,
+          :token=>token, :token_secret=>token_secret}
+        }
+      end
+    end
   end
 end

spec/lib/scraper/control_spec.rb

@@ -6,6 +6,7 @@
   let(:scraper_control) { Navd::Scraper::Control.new }
   before {
     scraper_control.stub(:log) # silence the logging messages when testing
+    scraper_control.stub(:notify_new_show) # silence the tweeting of show posts when testing
   }
 
   context "init" do

spec/models/show/show_spec.rb

@@ -86,6 +86,12 @@
     end
   end
 
+  describe "#twitter_publish_message" do
+    let(:expected) { "#NoAgenda show ##{resource.number} attack vectors now at http://noagendadashboard.com" }
+    subject { resource.twitter_publish_message }
+    it { should eql(expected) }
+  end
+
   describe "#destroy" do
     let!(:meme) { Factory(:meme) }
     let!(:show) { Factory(:show) }