root/platform/tdiary/plugin/section_footer2.rb

# section_footer2.rb $Revision 1.0 $
#
# Copyright (c) 2008 SHIBATA Hiroshi <h-sbt@nifty.com>
# You can redistribute it and/or modify it under GPL2.
#

require 'digest/md5'
require 'rubygems'
require 'json/ext'
require 'timeout'
require 'open-uri'
require 'yaml'
require 'pathname'

def permalink( date, index, escape = true )
        ymd = date.strftime( "%Y%m%d" )
        uri = @conf.index.dup
        uri[0, 0] = @conf.base_url unless %r|^https?://|i =~ uri
        uri.gsub!( %r|/\./|, '/' )
        if escape 
                uri + CGI::escape(anchor( "#{ymd}p%02d" % index ))
        else
                uri + anchor( "#{ymd}p%02d" % index )
        end
end

add_section_enter_proc do |date, index|
        @category_to_tag_list = {}
end

alias subtitle_link_original subtitle_link
def subtitle_link( date, index, subtitle )
        s = ''
        if subtitle then
                s = subtitle.sub( /^(?:\[[^\[]+?\])+/ ) do
                        $&.scan( /\[(.*?)\]/ ) do |tag|
                                @category_to_tag_list[tag] = false # false when diary
                        end
                        ''
                end
        end
        subtitle_link_original( date, index, s.strip )
end

add_section_leave_proc do |date, index|
        unless @conf.mobile_agent? or @conf.iphone? or feed? or bot? 
                r = '<div class="tags">'
                # add category_tag
                if @category_to_tag_list and not @category_to_tag_list.empty? then
                        r << "Tags: "
                        @category_to_tag_list.each do |tag, blog|
                                r << category_anchor( "#{tag}" ).sub( /^\[/, '' ).sub( /\]$/, '' ) << ' '
                        end
                        r << ' | '
                end

                # add del.icio.us link
                r << add_delicious(date, index)

                # add SBM link
                yaml_dir = "#{@cache_path}/yaml/"
                Dir.glob( yaml_dir + "*.yaml" ) do |file|
                        r << parse_sbm_yaml(file, date, index)
                end

                # add Permalink
                r << %Q|<a href="#{permalink(date, index, false)}">Permalink</a> |

                r << "</div>\n"
        end
end

def call_delicious_json( url_md5 )
        json = nil
        begin
                timeout(10) do
                        open( "http://feeds.delicious.com/v2/json/urlinfo/#{url_md5}" ) do |f|
                                json = JSON.parse( f.read )
                        end
                end
        rescue => e
                @conf.debug( e )
        end
        return json
end

def add_delicious( date, index )
        url_md5 = Digest::MD5.hexdigest(permalink(date, index, false))
        db_file = "#{@cache_path}/delicious.cache"

        r = ''
        r << %Q|<a href="http://delicious.com/url/#{url_md5}"><img src="http://static.delicious.com/img/delicious.small.gif" style="border: none;vertical-align: middle;" alt="#{@section_footer2_delicious_label}" title="#{@section_footer2_delicious_label}">|

        begin
                cache_time = 8 * 60 * 60  # 12 hour

                PStore.new(db_file).transaction do |db|
                        entry = db[url_md5]
                        entry = { :count => 0, :update=> Time.at(0) } if entry.nil?
                        
                        if Time.now > entry[:update] + cache_time
                                json = call_delicious_json( url_md5 )
                                entry[:count] = json[0]["total_posts"].to_i unless json[0].nil?
                                entry[:update] = Time.now
                                db[url_md5] = entry
                        end

                        if entry[:count] > 0
                                r << %Q| #{entry[:count]} user|
                                r << 's' if entry[:count] > 1
                        end
                end
        rescue => e
                @conf.debug( e )
        end

        r << '</a>'
        r << ' | '

        return r
end

def parse_sbm_yaml(file, date, index)
        config = YAML.load( Pathname.new( file ).expand_path.read )
        r = ""

        unless config.nil?
                title = config["title"][@conf.lang]
                r << %Q|<a href="#{config["url"]}#{permalink(date, index)}">|
                r << %Q|<img src="#{config["src"]}" style="border: none;vertical-align: middle;" |
                r << %Q|title="#{title}" |
                r << %Q|alt="#{title}" />|
                r << %Q| <img src="#{config["counter"]}#{permalink(date, index)}" style="border: none;vertical-align: middle;" />| unless config["counter"].nil?
                r << '</a>'
                r << ' | '
        end

        return r
end