rss plugin: code cleanup. add support for slashdot feeds, with RDF extension and custom feed type

1 files changed, 138 insertions, 17 deletions

diff --git a/data/rbot/plugins/rss.rb b/data/rbot/plugins/rss.rb
index 68a5271b..5873c496 100644
--- a/data/rbot/plugins/rss.rb
+++ b/data/rbot/plugins/rss.rb
@@ -14,20 +14,125 @@
 #

 # License:: MIT license

 

-# require 'rss/parser'

-# require 'rss/1.0'

-# require 'rss/2.0'

-# require 'rss/dublincore'

-# # begin

-# #   require 'rss/dublincore/2.0'

-# # rescue

-# #   warning "Unable to load RSS libraries, RSS plugin functionality crippled"

-# # end

-#

-# GB: Let's just go for the simple stuff:

-#

 require 'rss'

 

+# Add support for Slashdot namespace in RDF. The code is just an adaptation of

+# the DublinCore code.

+module ::RSS

+

+  unless defined?(SLASH_PREFIX)

+    SLASH_PREFIX = 'slash'

+    SLASH_URI = "http://purl.org/rss/1.0/modules/slash/"

+

+    RDF.install_ns(SLASH_PREFIX, SLASH_URI)

+

+    module BaseSlashModel

+      def append_features(klass)

+        super

+

+        return if klass.instance_of?(Module)

+        SlashModel::ELEMENT_NAME_INFOS.each do |name, plural_name|

+          plural = plural_name || "#{name}s"

+          full_name = "#{SLASH_PREFIX}_#{name}"

+          full_plural_name = "#{SLASH_PREFIX}_#{plural}"

+          klass_name = "Slash#{Utils.to_class_name(name)}"

+          klass.install_must_call_validator(SLASH_PREFIX, SLASH_URI)

+          klass.install_have_children_element(name, SLASH_URI, "*",

+                                              full_name, full_plural_name)

+          klass.module_eval(<<-EOC, *get_file_and_line_from_caller(0))

+          remove_method :#{full_name}

+          remove_method :#{full_name}=

+          remove_method :set_#{full_name}

+

+          def #{full_name}

+            @#{full_name}.first and @#{full_name}.first.value

+          end

+

+          def #{full_name}=(new_value)

+            @#{full_name}[0] = Utils.new_with_value_if_need(#{klass_name}, new_value)

+          end

+          alias set_#{full_name} #{full_name}=

+        EOC

+        end

+      end

+    end

+

+    module SlashModel

+      extend BaseModel

+      extend BaseSlashModel

+

+      TEXT_ELEMENTS = {

+      "department" => nil,

+      "section" => nil,

+      "comments" =>  nil,

+      "hit_parade" => nil

+      }

+

+      ELEMENT_NAME_INFOS = SlashModel::TEXT_ELEMENTS.to_a

+

+      ELEMENTS = TEXT_ELEMENTS.keys

+

+      ELEMENTS.each do |name, plural_name|

+        module_eval(<<-EOC, *get_file_and_line_from_caller(0))

+        class Slash#{Utils.to_class_name(name)} < Element

+          include RSS10

+

+          content_setup

+

+          class << self

+            def required_prefix

+              SLASH_PREFIX

+            end

+

+            def required_uri

+              SLASH_URI

+            end

+          end

+

+          @tag_name = #{name.dump}

+

+          alias_method(:value, :content)

+          alias_method(:value=, :content=)

+

+          def initialize(*args)

+            if Utils.element_initialize_arguments?(args)

+              super

+            else

+              super()

+              self.content = args[0]

+            end

+          end

+

+          def full_name

+            tag_name_with_prefix(SLASH_PREFIX)

+          end

+

+          def maker_target(target)

+            target.new_#{name}

+          end

+

+          def setup_maker_attributes(#{name})

+            #{name}.content = content

+          end

+        end

+      EOC

+      end

+    end

+

+    class RDF

+      class Item; include SlashModel; end

+    end

+

+    SlashModel::ELEMENTS.each do |name|

+      class_name = Utils.to_class_name(name)

+      BaseListener.install_class_name(SLASH_URI, name, "Slash#{class_name}")

+    end

+

+    SlashModel::ELEMENTS.collect! {|name| "#{SLASH_PREFIX}_#{name}"}

+  end

+end

+

+

 class ::RssBlob

   attr_accessor :url

   attr_accessor :handle

@@ -621,28 +726,44 @@ class RSSFeedsPlugin < Plugin
         date += " :: "

       end

     end

+

     title = "#{Bold}#{item.title.chomp.riphtml}#{Bold}" if item.title

+

     desc = item.description.gsub(/\s+/,' ').strip.riphtml if item.description

+

     link = item.link.chomp if item.link

+

+    debug item.inspect

+    category = item.dc_subject rescue item.category rescue nil

+    author = item.dc_creator rescue item.author rescue nil

+

     line1 = nil

     line2 = nil

+

+    at = ((item.title && item.link) ? ' @ ' : '')

     case feed.type

     when 'blog'

-      line1 = "#{handle}#{date}#{item.category.content} blogged at #{link}"

+      abt = category ? "about #{category} " : ""

+      line1 = "#{handle}#{date}#{author} blogged #{abt}at #{link}"

       line2 = "#{handle}#{title} - #{desc}"

     when 'forum'

-      line1 = "#{handle}#{date}#{title}#{' @ ' if item.title && item.link}#{link}"

+      line1 = "#{handle}#{date}#{title}#{at}#{link}"

     when 'wiki'

-      line1 = "#{handle}#{date}#{title}#{' @ ' if item.title && item.link}#{link} has been edited by #{item.dc_creator}. #{desc}"

+      line1 = "#{handle}#{date}#{title}#{at}#{link} has been edited by #{author}. #{desc}"

     when 'gmane'

-      line1 = "#{handle}#{date}Message #{title} sent by #{item.dc_creator}. #{desc}"

+      line1 = "#{handle}#{date}Message #{title} sent by #{author}. #{desc}"

     when 'trac'

       line1 = "#{handle}#{date}#{title} @ #{link}"

       unless item.title =~ /^Changeset \[(\d+)\]/

         line2 = "#{handle}#{date}#{desc}"

       end

+    when '/.'

+      dept = "(from the #{item.slash_department} dept) " rescue nil

+      sec = " in section #{item.slash_section}" rescue nil

+

+      line1 = "#{handle}#{date}#{dept}#{title}#{at}#{link} (posted by #{author}#{sec})"

     else

-      line1 = "#{handle}#{date}#{title}#{' @ ' if item.title && item.link}#{link}"

+      line1 = "#{handle}#{date}#{title}#{at}#{link}"

     end

     places.each { |loc|

       @bot.say loc, line1, :overlong => :truncate