Merge pull request #469 from wojciechka/master

Support for running discourse with a prefix (i.e. as http://servername/discourse)

lib/discourse.rb

@@ -18,6 +18,14 @@ module Discourse
     RailsMultisite::ConnectionManagement.current_hostname
   end
 
+  def self.base_uri
+    if !ActionController::Base.config.relative_url_root.blank?
+      return ActionController::Base.config.relative_url_root 
+    else
+      return ""
+    end
+  end
+
   def self.base_url
     protocol = "http"
     protocol = "https" if SiteSetting.use_ssl?
@@ -27,6 +35,7 @@ module Discourse
       result = "#{protocol}://#{current_hostname}"
     end
     result << ":#{SiteSetting.port}" if SiteSetting.port.present? && SiteSetting.port.to_i > 0
+    result << ActionController::Base.config.relative_url_root if !ActionController::Base.config.relative_url_root.blank?
     result
   end
 

lib/pretty_text.rb

@@ -120,6 +120,7 @@ module PrettyText
       # we need to do this to work in a multi site environment, many sites, many settings
       v8.eval("Discourse.SiteSettings = #{SiteSetting.client_settings_json};")
       v8.eval("Discourse.BaseUrl = 'http://#{RailsMultisite::ConnectionManagement.current_hostname}';")
+      v8.eval("Discourse.getURL = function(url) {return '#{Discourse::base_uri}' + url};")
       v8['opts'] = opts || {}
       v8['raw'] = text
       v8.eval('opts["mentionLookup"] = function(u){return helpers.is_username_valid(u);}')