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Contents
# frozen_string_literal: true
# Originally from:
# https://github.com/rkh/mustermann/blob/500a603fffe0594ab842d72addcc449eedd6d5be/mustermann/lib/mustermann/router/rack.rb
# Copied here after its removal from Mustermann proper
require 'praxis/router/simple'
module Mustermann
module Router
# Simple pattern based router that allows matching paths to a given Rack application.
#
# @example config.ru
# router = Mustermann::Rack.new do
# on '/' do |env|
# [200, {'Content-Type' => 'text/plain'}, ['Hello World!']]
# end
#
# on '/:name' do |env|
# name = env['mustermann.params']['name']
# [200, {'Content-Type' => 'text/plain'}, ["Hello #{name}!"]]
# end
#
# on '/something/*', call: SomeApp
# end
#
# # in a config.ru
# run router
class Rack < Simple
def initialize(env_prefix: 'mustermann', params_key: "#{env_prefix}.params", pattern_key: "#{env_prefix}.pattern", **options, &block)
@params_key = params_key
@pattern_key = pattern_key
options[:default] = [404, { 'Content-Type' => 'text/plain', 'X-Cascade' => 'pass' }, ['Not Found']] unless options.include? :default
super(**options, &block)
end
def invoke(callback, env, params, pattern)
params_was = env[@params_key]
pattern_was = env[@pattern_key]
env[@params_key] = params
env[@pattern_key] = pattern
response = callback.call(env)
response[1].each { |k, v| throw :pass if (k.downcase == 'x-cascade') && (v == 'pass') }
response
ensure
env[@params_key] = params_was
env[@pattern_key] = pattern_was
end
def string_for(env)
env['PATH_INFO']
end
private :invoke, :string_for
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems