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Copy pathtiny_server.rb
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179 lines (142 loc) · 4.08 KB
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#
# Author:: Daniel DeLeo (<dan@opscode.com>)
# Copyright:: Copyright (c) 2010 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'rubygems'
require 'rack'
require 'thin'
require 'singleton'
require 'json'
require 'open-uri'
module TinyServer
class Server < Rack::Server
attr_writer :app
def self.run(options=nil, &block)
tiny_app = new(options)
app_code = Rack::Builder.new(&block).to_app
tiny_app.app = app_code
tiny_app.start
end
end
class Manager
DEFAULT_OPTIONS = {:server => 'thin', :Port => 9000, :Host => 'localhost', :environment => :none}
def initialize(options=nil)
@options = options ? DEFAULT_OPTIONS.merge(options) : DEFAULT_OPTIONS
@creator = caller.first
Thin::Logging.silent = !@options[:debug]
end
def start
@server_thread = Thread.new do
@server = Server.run(@options) do
run API.instance
end
end
block_until_started
end
def url
"http://localhost:#{@options[:Port]}"
end
def block_until_started
20.times do
return true if started?
end
raise "TinyServer failed to boot :/"
end
def started?
open(url)
true
rescue OpenURI::HTTPError
true
rescue Errno::ECONNREFUSED => e
sleep 0.1
false
end
def stop
# yes, this is terrible.
@server_thread.kill
@server_thread.join
@server_thread = nil
end
end
class API
include Singleton
GET = "GET"
PUT = "PUT"
POST = "POST"
DELETE = "DELETE"
attr_reader :routes
def initialize
clear
end
def clear
@routes = {GET => [], PUT => [], POST => [], DELETE => []}
end
def get(path, response_code, data=nil, &block)
@routes[GET] << Route.new(path, Response.new(response_code,data, &block))
end
def put(path, response_code, data=nil, &block)
@routes[PUT] << Route.new(path, Response.new(response_code,data, &block))
end
def post(path, response_code, data=nil, &block)
@routes[POST] << Route.new(path, Response.new(response_code,data, &block))
end
def delete(path, response_code, data=nil, &block)
@routes[DELETE] << Route.new(path, Response.new(response_code,data, &block))
end
def call(env)
if response = response_for_request(env)
response.call
else
debug_info = {:message => "no data matches the request for #{env['REQUEST_URI']}",
:available_routes => @routes, :request => env}
# Uncomment me for glorious debugging
#pp :not_found => debug_info
[404, {'Content-Type' => 'application/json'}, debug_info.to_json]
end
end
def response_for_request(env)
if route = @routes[env["REQUEST_METHOD"]].find { |route| route.matches_request?(env["REQUEST_URI"]) }
route.response
end
end
end
class Route
attr_reader :response
def initialize(path_spec, response)
@path_spec, @response = path_spec, response
end
def matches_request?(uri)
@path_spec === uri
end
def to_s
"#{@path_spec} => (#{@response})"
end
end
class Response
HEADERS = {'Content-Type' => 'application/json'}
def initialize(response_code=200,data=nil, &block)
@response_code, @data = response_code, data
@block = block_given? ? block : nil
end
def call
data = @data || @block.call
[@response_code, HEADERS, data]
end
def to_s
"#{@response_code} => #{(@data|| @block)}"
end
end
end