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# $Id: rss.rb,v 1.22 2005/09/11 10:10:30 fdiary Exp $
# Copyright (C) 2003-2004 TAKEUCHI Hitoshi <hitoshi@namaraii.com>
# Copyright (C) 2005 Kazuhiko <kazuhiko@fdiary.net>
def rss_body(page_num = 10)
pages = @db.page_info.sort do |a, b|
k1 = a.keys[0]
k2 = b.keys[0]
b[k2][:last_modified] <=> a[k1][:last_modified]
end
n = 0
item_list = ''
last_modified = pages[0].values[0][:last_modified]
items = <<EOS
<?xml version="1.0" encoding="#{@conf.charset}" standalone="yes"?>
<rdf:RDF xmlns="http://purl.org/rss/1.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:content="http://purl.org/rss/1.0/modules/content/" xml:lang="ja-JP">
<channel rdf:about="#{@conf.index_url}?c=recent">
<title>#{CGI::escapeHTML(@conf.site_name)} : #{label_rss_recent}</title>
<link>#{@conf.index_url}?c=recent</link>
<description>#{CGI::escapeHTML(@conf.site_name)} #{label_rss_recent}</description>
<dc:language>ja</dc:language>
<dc:rights>Copyright (C) #{CGI::escapeHTML(@conf.author_name)}</dc:rights>
<dc:date>#{last_modified.utc.strftime('%Y-%m-%dT%H:%M:%S+00:00')}</dc:date>
<items>
<rdf:Seq>
EOS
pages.each do |p|
break if (n += 1) > page_num
name = p.keys[0]
src = @db.load_backup(name) || ''
dst = @db.load(name) || ''
case @conf['rss.mode']
when 1
content = word_diff(src, dst, true).strip.gsub(/\n/, "<br>\n")
when 2
content = word_diff(src, dst).strip.gsub(/\n/, "<br>\n")
when 3
tokens = @db.load_cache( name )
unless tokens
parser = @conf.parser::new( @conf )
tokens = parser.parse( @db.load( name ) )
@db.save_cache( name, tokens )
end
tmp = @conf.use_plugin
@conf.use_plugin = false
formatter = @conf.formatter::new( tokens, @db, Plugin.new( @conf.options, @conf), @conf )
content = formatter.to_s
@conf.use_plugin = tmp
else
content = CGI::escapeHTML(unified_diff(src, dst)).strip.gsub(/\n/, "<br>\n").gsub(/ /, ' ')
end
if content and content.empty?
content = shorten(dst).strip.gsub(/\n/, "<br>\n")
end
items << ' '
uri = "#{@conf.index_url}?#{name.escape}"
items << %Q!<rdf:li resource="#{uri}"/>\n!
item_list << <<EOS
<item rdf:about="#{uri}">
<title>#{CGI::escapeHTML(page_name(name))}</title>
<link>#{uri}</link>
<dc:date>#{p[name][:last_modified].utc.strftime('%Y-%m-%dT%H:%M:%S+00:00')}</dc:date>
EOS
item_list << " <content:encoded><![CDATA[<div>#{content}</div>]]></content:encoded>" if content
item_list << ' </item>'
end
items << <<EOS
</rdf:Seq>
</items>
</channel>
EOS
items << item_list << '</rdf:RDF>'
return( [items, last_modified] )
end
def rss
body, last_modified = rss_body
header = Hash::new
require 'time'
begin
if_modified_since = Time.parse(ENV['HTTP_IF_MODIFIED_SINCE'])
rescue
if_modified_since = nil
end
if if_modified_since and last_modified < if_modified_since
header['status'] = 'NOT_MODIFIED'
print @cgi.header(header)
else
header['Last-Modified'] = CGI::rfc1123_date(last_modified)
header['type'] = 'text/xml'
header['charset'] = @conf.charset
header['Content-Language'] = @conf.lang
header['Pragma'] = 'no-cache'
header['Cache-Control'] = 'no-cache'
print @cgi.header(header)
puts body
end
nil # Don't move to the 'FrontPage'
end
add_body_enter_proc(Proc.new do
@conf['rss.mode'] ||= 0
if @conf['rss.menu'] == 1
add_plugin_command('rss', nil)
else
add_plugin_command('rss', 'RSS')
end
end)
add_header_proc(Proc.new do
%Q! <link rel="alternate" type="application/rss+xml" title="RSS" href="#{@conf.index_url}?c=rss">!
end)
def saveconf_rss
if @mode == 'saveconf' then
@conf['rss.mode'] = @cgi.params['rss.mode'][0].to_i
end
end
if @cgi.params['conf'][0] == 'rss' && @mode == 'saveconf'
@conf['rss.menu'] = @cgi.params['rss.menu'][0].to_i
end
add_conf_proc('rss', label_rss_config) do
saveconf_rss
str = <<-HTML
<h3 class="subtitle">#{label_rss_mode_title}</h3>
<p><select name="rss.mode">
HTML
label_rss_mode_candidate.each_index{ |i|
str << %Q|<option value="#{i}"#{@conf['rss.mode'] == i ? ' selected' : ''}>#{label_rss_mode_candidate[i]}</option>\n|
}
str << "</select></p>\n"
str << <<-HTML
<h3 class="subtitle">#{label_rss_menu_title}</h3>
<p><select name="rss.menu">
HTML
label_rss_menu_candidate.each_index{ |i|
str << %Q|<option value="#{i}"#{@conf['rss.menu'] == i ? ' selected' : ''}>#{label_rss_menu_candidate[i]}</option>\n|
}
str << "</select></p>\n"
str
end
export_plugin_methods(:rss)
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