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| | # This code is based on the original Rails handler in Mongrel
# Copyright (c) 2005 Zed A. Shaw
# Copyright (c) 2009 Eric Wong
# You can redistribute it and/or modify it under the same terms as Ruby.
require 'rack/file'
# Static file handler for Rails < 2.3. This handler is only provided
# as a convenience for developers. Performance-minded deployments should
# use nginx (or similar) for serving static files.
#
# This supports page caching directly and will try to resolve a
# request in the following order:
#
# * If the requested exact PATH_INFO exists as a file then serve it.
# * If it exists at PATH_INFO+rest_operator+".html" exists
# then serve that.
#
# This means that if you are using page caching it will actually work
# with Unicorn and you should see a decent speed boost (but not as
# fast as if you use a static server like nginx).
class Unicorn::App::OldRails::Static
FILE_METHODS = { 'GET' => true, 'HEAD' => true }.freeze
REQUEST_METHOD = 'REQUEST_METHOD'.freeze
REQUEST_URI = 'REQUEST_URI'.freeze
PATH_INFO = 'PATH_INFO'.freeze
def initialize(app)
@app = app
@root = "#{::RAILS_ROOT}/public"
@file_server = ::Rack::File.new(@root)
end
def call(env)
# short circuit this ASAP if serving non-file methods
FILE_METHODS.include?(env[REQUEST_METHOD]) or return @app.call(env)
# first try the path as-is
path_info = env[PATH_INFO].chomp("/")
if File.file?("#@root/#{::Rack::Utils.unescape(path_info)}")
# File exists as-is so serve it up
env[PATH_INFO] = path_info
return @file_server.call(env)
end
# then try the cached version:
# grab the semi-colon REST operator used by old versions of Rails
# this is the reason we didn't just copy the new Rails::Rack::Static
env[REQUEST_URI] =~ /^#{Regexp.escape(path_info)}(;[^\?]+)/
path_info << "#$1#{ActionController::Base.page_cache_extension}"
if File.file?("#@root/#{::Rack::Utils.unescape(path_info)}")
env[PATH_INFO] = path_info
return @file_server.call(env)
end
@app.call(env) # call OldRails
end
end if defined?(Unicorn::App::OldRails)
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