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Contents
#
# This file is part of the ballast gem. Copyright (C) 2013 and above Shogun <shogun@cowtech.it>.
# Licensed under the MIT license, which can be found at http://www.opensource.org/licenses/mit-license.php.
#
module Ballast
# A list of useful middlewares for Rack.
module Middlewares
# Converts the host of an IP based request to the default host.
class DefaultHost
# Creates a new middleware instance.
#
# @param app [Object] A Rack application.
# @param path [String] The path of a YAML file with default hosts definition per environment.
def initialize(app, path)
@app = app
@hosts = YAML.load_file(path)
end
# Executes the middleware.
#
# @param env [Hash] A Rack environment.
def call(env)
old_host = env["SERVER_NAME"].ensure_string
new_host = @hosts[ENV["RACK_ENV"]]
if old_host =~ /^\d/ && new_host then
env["ORIG_SERVER_NAME"] = old_host
env["ORIG_HTTP_HOST"] = env["HTTP_HOST"].dup
env["SERVER_NAME"] = new_host
env["HTTP_HOST"].gsub!(old_host, new_host)
end
@app.call(env)
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems