friendfeed_badge.rb: show the FriendFeed profile picture plugin for tDiary

friendfeed_badge.rb

# friendfeed_badge.rb: show the FriendFeed profile picture plugin for tDiary
#
# Copyright (C) 2009 KAYA Satoshi <http://kayakaya.net/>
# Distributed under GPLv2.
#

require 'net/http'
Net::HTTP.version_1_2

def friendfeed_picture(feed_id)

	begin 
		cache_dir = "#{@cache_path}/friendfeed_badge"
		Dir::mkdir(cache_dir) unless File::directory?(cache_dir)

		cache_file = "#{cache_dir}/picture.txt"
		picture_url = open(cache_file) {|f| f.read }

		if Time::now > File::mtime(cache_file) + 60 * 60 then
			File::delete(cache_file) #clear cache 1 hour later
		end
	rescue Errno::ENOENT
		begin 
			location = call_friendfeed_picture_api(feed_id)
			open(cache_file, 'wb') {|f| f.puts(location)}
		rescue Timeout::Error
			return '<div class="friendfeed-picture">friendfeed.com no data.</div>'
		end
	end
	html = '<div class="friendfeed-picture">'
	html << %Q|<a href="http://friendfeed.com/#{feed_id}">|
	html << %Q|<span class="friendfeed-image"><img src="#{picture_url}" alt="FriendFeed" width="75" height="75"></span>|
	html << '</a>'
	html << %Q|<span class="friendfeed-powered">Powered by <a href="http://friendfeed.com">FriendFeed</a></span>|
	html << '</div>'

	@conf.to_native(html)
end

# This method is indivisual, because FriendFeed API for pictures returns 302 code. 
def call_friendfeed_picture_api(feed_id)

	url = URI.parse("http://friendfeed-api.com/v2/picture/#{feed_id}?size=large")
	req = Net::HTTP::Get.new(url.path)
 	
	res = Net::HTTP.start(url.host, url.port) {|http|
		http.request(req)
	}
	if res.class == Net::HTTPFound
		location = res['Location']
	end
	return location
end
# Local Variables:
# ruby-indent-level: 3
# tab-width: 3
# indent-tabs-mode: t
# End: