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# -*- coding: utf-8 -*-
require 'fileutils'
Plugin.create :aspectframe do
def now
Time.new end
THE_DAY = Time.new(now.year, 4, 1)..Time.new(now.year, 4, 2)
PREFETCH = Time.new(now.year, 3, 1)..THE_DAY.first
CACHE_DIR = File.expand_path(File.join(Environment::CACHE, "af"))
if (Time.new(now.year, 3, 1)..THE_DAY.last).cover? now
FileUtils.mkdir_p(CACHE_DIR)
# prefetch
onappear do |messages|
if PREFETCH.cover?(now)
messages.each { |message|
if rand(1000) < Time.new.day**2 and not FileTest.exist?(localfile(message.user[:profile_image_url]))
Gdk::WebImageLoader.get_raw_data_d(transform(message.user[:profile_image_url])).next{ |raw|
if raw and not raw.empty?
notice "prefetch: #{transform(message.user[:profile_image_url])}"
SerialThread.new{
file_put_contents(localfile(message.user[:profile_image_url]), raw) } end
}.terminate end } end
end
end
if FileTest.exist?(CACHE_DIR) and not (PREFETCH.first..THE_DAY.last).cover?(now)
notice 'destroy all prefetch data'
FileUtils.rm_rf(CACHE_DIR) end
# return fetched data
filter_image_cache do |url, image, &stop|
if /http:\/\/toshia.dip.jp\/img\/api\/([0-9A-F]{2})\.png/ =~ url
local = localfile_hash($1)
if FileTest.exist? local
raw = file_get_contents(local)
if raw and not raw.empty?
stop.call([url, raw]) end end end
[url, image] end
filter_web_image_loader_url_filter do |url|
if the_day?
[transform(url)]
else
[url] end end
def transform(url)
"http://toshia.dip.jp/img/api/#{Digest::MD5.hexdigest(url)[0,2].upcase}.png"
end
def localfile(url)
localfile_hash(Digest::MD5.hexdigest(url)[0,2]) end
def localfile_hash(hash)
File.expand_path(File.join(CACHE_DIR, "#{hash.upcase}_5.png")) end
def the_day?
THE_DAY.cover?(now) end
end
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