purge for delete and purge for refreshing

workers/delete_cache_order_worker.rb

@@ -0,0 +1,23 @@
+class DeleteCacheOrderWorker
+  include Sidekiq::Worker
+  sidekiq_options queue: :deletecacheorder, retry: 1000, backtrace: true, average_scheduled_poll_interval: 1
+
+  sidekiq_retry_in do |count|
+    return 10 if count < 10
+    180
+  end
+
+  RESOLVER = Dnsruby::Resolver.new
+
+  def perform(username, path)
+    if ENV['RACK_ENV'] == 'test'
+      proxy_ips = ['10.0.0.1', '10.0.0.2']
+    else
+      proxy_ips = RESOLVER.query($config['cache_purge_ips_uri']).answer.collect {|a| a.address.to_s}
+    end
+
+    proxy_ips.each do |proxy_ip|
+      DeleteCacheWorker.perform_async proxy_ip, username, path
+    end
+  end
+end

workers/delete_cache_worker.rb

@@ -0,0 +1,34 @@
+require 'open-uri'
+
+# PurgeCacheWorker refreshes the cache, this actually deletes it.
+# This is because when the file is 404ing the PurgeCacheWorker
+# will just sit on the stale cache, even though it's not supposed to.
+# It's some nginx bug. I'm not going to deal with it.
+
+class DeleteCacheWorker
+  HTTP_TIMEOUT = 5
+  include Sidekiq::Worker
+  sidekiq_options queue: :deletecache, retry: 1000, backtrace: false, average_scheduled_poll_interval: 1
+
+  sidekiq_retry_in do |count|
+    return 10 if count < 10
+    180
+  end
+
+  def perform(proxy_ip, username, path)
+    # Must always have a forward slash
+    path = '/' + path if path[0] != '/'
+
+    url = Addressable::URI.encode_component(
+      "http://#{proxy_ip}/:cache/purge#{path}",
+      Addressable::URI::CharacterClasses::QUERY
+    )
+    begin
+      RestClient::Request.execute method: :get, url: url, timeout: HTTP_TIMEOUT, headers: {
+        host: URI::encode("#{username}.neocities.org")
+      }
+    rescue RestClient::ResourceNotFound
+    rescue RestClient::Forbidden
+    end
+  end
+end