Class: Hobix::Out::RSS

Inherits:
BaseOutput show all
Defined in:
lib/hobix/out/rss.rb

Instance Method Summary collapse

Methods inherited from BasePlugin

inherited, start

Constructor Details

#initialize(weblog, params = {}) ⇒ RSS

Returns a new instance of RSS.



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# File 'lib/hobix/out/rss.rb', line 23

def initialize( weblog, params = {} )
    @path = weblog.skel_path
    @extra_ns = params["namespaces"]
    @extra_els = params["elements"]
    @summaries = params["summary-only"]
    @more_link = params["more-link"]
    @comment_aname = params["comment-location"]
end

Instance Method Details

#extension ⇒ Object 



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# File 'lib/hobix/out/rss.rb', line 31

def extension
    "rss"
end

#load(file_name, vars) ⇒ Object 



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# File 'lib/hobix/out/rss.rb', line 34

def load( file_name, vars )
    rssdoc = REXML::Document.new( <<EOXML )
<rss version="2.0" 
  xmlns:dc="http://purl.org/dc/elements/1.1/"
  xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
  xmlns:admin="http://webns.net/mvcb/"
  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<channel>
<title></title>
<link></link>
<description></description>
<dc:language>en-us</dc:language>
<dc:creator></dc:creator>
<dc:date></dc:date>
<admin:generatorAgent rdf:resource="http://hobix.com/?v=#{ Hobix::VERSION }" />
<sy:updatePeriod>hourly</sy:updatePeriod>
<sy:updateFrequency>1</sy:updateFrequency>
<sy:updateBase>2000-01-01T12:00+00:00</sy:updateBase>
</channel>
</rss>
EOXML
    rssdoc << REXML::XMLDecl.new
    rssdoc.elements['/rss/channel/title'].text = rss_mangle( vars[:weblog].title )
    rssdoc.elements['/rss/channel/link'].text = vars[:weblog].link.to_s
    rssdoc.elements['/rss/channel/description'].text = vars[:weblog].tagline
    rssdoc.elements['/rss/channel/dc:date'].text = Time.now.utc.strftime( "%Y-%m-%dT%H:%M:%S+00:00" )

    @extra_ns.each do |k, v|
        rssdoc.elements['/rss'].attributes["xmlns:" + k.to_s] = v.to_s
    end if @extra_ns
    @extra_els.each do |k, v|
        extra = REXML::Element.new k.to_s
        extra.text = v.to_s
        rssdoc.elements['/rss/channel'].add extra
    end if @extra_els

    ( vars[:entries] || [vars[:entry]] ).each do |e|
        ele = REXML::Element.new 'item'
        ele_title = REXML::Element.new 'title'
        ele_title.text = rss_mangle( e.title )
        ele << ele_title
        ele_link = REXML::Element.new 'link'
        link = e.link.gsub(/'/,"%27")
        ele_link.text = "#{ link }"
        ele << ele_link
        if @comment_aname
          ele_comments = REXML::Element.new 'comments'
          ele_comments.text = "#{ link }##@comment_aname"
          ele << ele_comments
        end
        ele_guid = REXML::Element.new 'guid'
        ele_guid.attributes['isPermaLink'] = 'false'
        ele_guid.text = "#{ e.id }@#{ vars[:weblog].link }"
        ele << ele_guid
        ele_subject = REXML::Element.new 'dc:subject'
        ele_subject.text = e.section_id
        ele << ele_subject
        e.tags.each do |t|
            ele_subject = REXML::Element.new 'dc:subject'
            ele_subject.text = t
            ele << ele_subject
        end
        ele_creator = REXML::Element.new 'dc:creator'
        ele_creator.text = vars[:weblog].authors[e.author]['name']
        ele << ele_creator
        ele_pubDate = REXML::Element.new 'dc:date'
        ele_pubDate.text = ( e.modified || e.created ).dup.utc.strftime( "%Y-%m-%dT%H:%M:%S+00:00" )
        ele << ele_pubDate
        ele_desc = REXML::Element.new 'description'
        ele_desc.attributes['xml:space'] = "preserve"
        text = 
            if @summaries && e.summary
              e.summary.to_html + (@more_link ? %{<p><a href="#{e.link}">#@more_link</a></p>} : "")
            else
              e.content.to_html
            end.gsub( /(src|href)="\//, "\\1=\"#{ vars[:weblog].link.rooturi }/" )
        # Quote the text ourselves rather than letting REXML do it,
        # due to REXML bug where it fails to quote e.g. &rarr;
        REXML::Text.new ::ERB::Util.h( text ), true, ele_desc, true
        ele << ele_desc
        rssdoc.elements['/rss/channel'].add ele
    end
    rssdoc.to_s
end