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Extract Feedjira extension into lib/feedjira_extension.rb
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,166 @@ | ||
| require 'feedjira' | ||
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| module FeedjiraExtension | ||
| LINK_ATTRS = %i[href rel type hreflang title length] | ||
| ENCLOSURE_ATTRS = %i[url type length] | ||
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| class AtomAuthor | ||
| include SAXMachine | ||
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| element :name | ||
| element :email | ||
| element :uri | ||
| end | ||
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| class Enclosure | ||
| include SAXMachine | ||
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| ENCLOSURE_ATTRS.each do |attr| | ||
| attribute attr | ||
| end | ||
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| def to_json(options = nil) | ||
| ENCLOSURE_ATTRS.each_with_object({}) { |key, hash| | ||
| if value = __send__(key) | ||
| hash[key] = value | ||
| end | ||
| }.to_json(options) | ||
| end | ||
| end | ||
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| class AtomLink | ||
| include SAXMachine | ||
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| LINK_ATTRS.each do |attr| | ||
| attribute attr | ||
| end | ||
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| def to_json(options = nil) | ||
| LINK_ATTRS.each_with_object({}) { |key, hash| | ||
| if value = __send__(key) | ||
| hash[key] = value | ||
| end | ||
| }.to_json(options) | ||
| end | ||
| end | ||
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| class RssLinkElement | ||
| include SAXMachine | ||
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| value :href | ||
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| def to_json(options = nil) | ||
| { | ||
| href: href | ||
| }.to_json(options) | ||
| end | ||
| end | ||
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| module HasEnclosure | ||
| def self.included(mod) | ||
| mod.module_exec do | ||
| sax_config.top_level_elements['enclosure'].clear | ||
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| element :enclosure, class: Enclosure | ||
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| def image_enclosure | ||
| case enclosure.try!(:type) | ||
| when %r{\Aimage/} | ||
| enclosure | ||
| end | ||
| end | ||
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| def image | ||
| @image ||= image_enclosure.try!(:url) | ||
| end | ||
| end | ||
| end | ||
| end | ||
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| module HasLinks | ||
| def self.included(mod) | ||
| mod.module_exec do | ||
| sax_config.top_level_elements['link'].clear | ||
| sax_config.collection_elements['link'].clear | ||
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| case name | ||
| when /RSS/ | ||
| elements :link, class: RssLinkElement, as: :rss_links | ||
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| case name | ||
| when /FeedBurner/ | ||
| elements :'atok10:link', class: AtomLink, as: :atom_links | ||
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| def links | ||
| @links ||= [*rss_links, *atom_links] | ||
| end | ||
| else | ||
| alias_method :links, :rss_links | ||
| end | ||
| else | ||
| elements :link, class: AtomLink, as: :links | ||
| end | ||
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| def alternate_link | ||
| links.find { |link| | ||
| link.is_a?(AtomLink) && | ||
| link.rel == 'alternate' && | ||
| (link.type == 'text/html'|| link.type.nil?) | ||
| } | ||
| end | ||
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| def url | ||
| @url ||= (alternate_link || links.first).try!(:href) | ||
| end | ||
| end | ||
| end | ||
| end | ||
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| module FeedEntryExtensions | ||
| def self.included(mod) | ||
| mod.module_exec do | ||
| include HasEnclosure | ||
| include HasLinks | ||
| end | ||
| end | ||
| end | ||
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| module FeedExtensions | ||
| def self.included(mod) | ||
| mod.module_exec do | ||
| include HasEnclosure | ||
| include HasLinks | ||
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| element :id, as: :feed_id | ||
| element :generator | ||
| elements :rights | ||
| element :published | ||
| element :updated | ||
| element :icon | ||
| elements :author, class: AtomAuthor, as: :authors | ||
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| if /RSS/ === name | ||
| element :guid, as: :feed_id | ||
| element :managingEditor | ||
| element :pubDate, as: :published | ||
| element :'dc:date', as: :published | ||
| element :lastBuildDate, as: :updated | ||
| element :image, value: :url, as: :icon | ||
| end | ||
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| sax_config.collection_elements.each_value do |collection_elements| | ||
| collection_elements.each do |collection_element| | ||
| collection_element.accessor == 'entries' && | ||
| (entry_class = collection_element.data_class).is_a?(Class) or next | ||
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| entry_class.send :include, FeedEntryExtensions | ||
| end | ||
| end | ||
| end | ||
| end | ||
| end | ||
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| Feedjira::Feed.feed_classes.each do |feed_class| | ||
| feed_class.send :include, FeedExtensions | ||
| end | ||
| end |