fix onebox for your own site

Gemfile.lock

@@ -84,7 +84,7 @@ GEM
       activesupport (= 3.2.11)
       arel (~> 3.0.2)
       tzinfo (~> 0.3.29)
-    activerecord-postgres-hstore (0.7.0)
+    activerecord-postgres-hstore (0.7.1)
       rails
       rake
     activeresource (3.2.11)
@@ -100,9 +100,9 @@ GEM
     arel (3.0.2)
     barber (0.2.0)
       execjs
-    better_errors (0.3.2)
+    better_errors (0.5.0)
       coderay (>= 1.0.0)
-      erubis (>= 2.7.0)
+      erubis (>= 2.6.6)
     binding_of_caller (0.6.8)
     bourne (1.1.2)
       mocha (= 0.10.5)
@@ -158,7 +158,7 @@ GEM
       pry (>= 0.9.10)
       terminal-table (>= 1.4.3)
       thor (>= 0.14.6)
-    guard-jasmine (1.12.1)
+    guard-jasmine (1.12.2)
       childprocess
       guard (>= 1.1.0)
       multi_json

app/models/site_setting.rb

@@ -31,11 +31,16 @@ class SiteSetting < ActiveRecord::Base
   client_setting(:flush_timings_secs, 5)
 
 
+
   # settings only available server side
   setting(:auto_track_topics_after, 60000)
   setting(:long_polling_interval, 15000)
   setting(:flags_required_to_hide_post, 3)
   setting(:cooldown_minutes_after_hiding_posts, 10)
+
+  # used mainly for dev, force hostname for Discourse.base_url
+  # You would usually use multisite for this
+  setting(:force_hostname, '')
   setting(:port, Rails.env.development? ? 3000 : '')  
   setting(:enable_private_messages, true)
   setting(:use_ssl, false)

config/locales/en.yml

@@ -256,6 +256,7 @@ en:
     system_username: "Username that sends system messages"
     send_welcome_message: "Do new users get a welcome private message?"
     port: "If you'd like to specify a port in the URL. Useful in development mode. Leave blank for none."
+    force_hostname: "If you'd like to specify a hostname in the URL. Useful in development mode. Leave blank for none."
 
     invite_expiry_days: "How long (in days) that invite keys are valid."
 

lib/discourse.rb

@@ -21,8 +21,12 @@ module Discourse
   def self.base_url
     protocol = "http"
     protocol = "https" if SiteSetting.use_ssl?
-    result = "#{protocol}://#{current_hostname}"    
-    result << ":#{SiteSetting.port}" if SiteSetting.port.present?
+    if SiteSetting.force_hostname.present?
+      result = "#{protocol}://#{SiteSetting.force_hostname}"    
+    else
+      result = "#{protocol}://#{current_hostname}"    
+    end
+    result << ":#{SiteSetting.port}" if SiteSetting.port.present? && SiteSetting.port.to_i > 0
     result
   end  
 

lib/oneboxer.rb

@@ -20,6 +20,7 @@ module Oneboxer
   # Return a oneboxer for a given URL
   def self.onebox_for_url(url)
     matchers.each do |regexp, oneboxer|
+      regexp = regexp.call if regexp.class == Proc
       return oneboxer.new(url) if url =~ regexp
     end
     nil

lib/oneboxer/base.rb

@@ -19,7 +19,6 @@ module Oneboxer
         result['description'] = node['content'] if node
       end
 
-
       result
     end
   end

lib/oneboxer/base_onebox.rb

@@ -8,8 +8,8 @@ module Oneboxer
       attr_accessor :regexp
       attr_accessor :favicon_file
 
-      def matcher(regexp)
-        self.regexp = regexp
+      def matcher(regexp=nil,&blk)
+        self.regexp = regexp || blk
       end
 
       def favicon(favicon_file)

lib/oneboxer/discourse_onebox.rb

@@ -5,8 +5,9 @@ module Oneboxer
   class DiscourseOnebox < BaseOnebox
     include ActionView::Helpers::DateHelper
 
-    # TODO: we need to remove these hardcoded urls ASAP 
-    matcher /^https?\:\/\/(dev.discourse.org|localhost\:3000|l.discourse|discuss.emberjs.com)\/.*$/
+    matcher do
+      Regexp.new "^#{Discourse.base_url.gsub(".","\\.")}.*$", true
+    end
 
     def onebox
       uri = URI::parse(@url)

spec/components/oneboxer_spec.rb

@@ -1,6 +1,40 @@
 require 'spec_helper'
 require 'oneboxer'
 
+describe "Dynamic Oneboxer" do 
+  class DummyDynamicOnebox < Oneboxer::BaseOnebox
+    matcher do 
+      /^https?:\/\/dummy2.localhost/
+    end
+    
+    def onebox
+      "dummy2!"
+    end
+  end
+
+  before do
+    Oneboxer.add_onebox DummyDynamicOnebox
+    @dummy_onebox_url = "http://dummy2.localhost/dummy-object"
+  end
+
+   context 'find onebox for url' do
+
+     it 'returns blank with an unknown url' do
+       Oneboxer.onebox_for_url('http://asdfasdfasdfasdf.asdf').should be_blank
+     end
+
+     it 'returns something when matched' do
+       Oneboxer.onebox_for_url(@dummy_onebox_url).should be_present
+     end
+
+     it 'returns an instance of our class when matched' do
+       Oneboxer.onebox_for_url(@dummy_onebox_url).kind_of?(DummyDynamicOnebox).should be_true
+     end
+
+   end
+
+end
+
 describe Oneboxer do
 
   # A class to help us test
@@ -12,6 +46,7 @@ describe Oneboxer do
     end
   end
 
+  
   before do
     Oneboxer.add_onebox DummyOnebox
     @dummy_onebox_url = "http://dummy.localhost/dummy-object"
@@ -129,4 +164,4 @@ describe Oneboxer do
 
 end
 
- 
+