sinatra 0.9 - corey donohoe

8/14/2019 Sinatra 0.9 - Corey Donohoe

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Corey Donohoe([email protected]

)

Sinatra(Cl|S)assy Web Development

Thursday, May 14, 2009

mailto:[email protected]




Corey [email protected] / http://atmos.org


http://atmos.org/

http://atmos.org/





Open Source Participant




2001




Writing Rails since 2004




Engine Yard in March 2007




ran support for a while




“integration” team




It’s Take Your Breath Away Awesome




http://github.com/sinatra


http://github.com/bmizerany




Micro Framework




powered by rack




history




advances




fulfilling




Classic Applicationsget(‘/’) { “Hello World” }




http://sinatrarb.com


http://sinatrarb.com/

http://sinatrarb.com/



Hello World

require 'rubygems'require 'sinatra'

helpers do def greeting

haml :greeting endend

template :greeting do

"%h2 Hello World"end

get('/') dogreeting

end




throw that in a file




run it




Where’s my config file?




where’s my database.yml




There isn’t one(there isn’t even a db)




Wonderful for One Offs




HTTP Verbs




["/foo", "/bar", "/baz"].each do |path|get path do

"You've reached me at #{request.path_info}" endend




Block Syntax




get '/hello/:name' do |n|"Hello #{n}!"

end




params hash




templates




template :foo do<<-HAML

%h2 Greetings%p Lorem IpsumHAMLend




set :views, ‘views’




views/foo.haml




helpers do; end




Configuration Options




enable :sessions




set :public , ‘public ’




set :foo , 'bar'set :baz , Proc . new { "Hello " + foo }

get '/baz' do"baz is set to " + options.baz

end




enable/disable




Modular Styleclass MyApp < Sinatra::Default; end




remove global scope




instances




reusable instances




module Hancock class ConfigurationError < StandardError; end

class App < Sinatra::Defaultenable :sessions

set :sreg_params , [ :email , :first_name , :last_name , :internal ]set :provider_name , 'Hancock SSO Provider!'set :do_not_reply , nil

register Sinatra :: Hancock ::Defaultsregister Sinatra :: Hancock ::Sessionsregister Sinatra :: Hancock ::Usersregister Sinatra :: Hancock ::OpenIDServer

end

end




global scope moved inside my class




as class methods




pretty much works the same




register class methodnice modular pieces of sinatra apps




module Sinatra module Hancock module Sessions def self.sessions_template (file)

template = File .expand_path( File .dirname(__FILE__) +'/views/sessions' ) File .read( "#{template}/#{file}.haml" ) end

module Helpers def session_user

session[ 'user_id' ].nil? ? nil : :: Hancock :: User .get(session[ 'user_id' ]) end end

def self.registered (app)app.helpers( Sinatra :: Hancock :: Sessions ::Helpers)app.template( :unauthenticated ) { sessions_template ( 'unauthenticated' ) }app.get '/sso/login' do

ensure_authenticated endapp.post '/sso/login' do

@user = :: Hancock :: User .authenticate(params[ 'email' ], params[ 'password' ]) if @user

session[ 'user_id' ] = @user.id end

ensure_authenticatedredirect session[ 'return_to' ] || '/'

end

app.get '/sso/logout' dosession.clearredirect '/'

end end end endend




Sinatra::Hancock::Sessions




lib/sinatra/hancock/sessions.rb




auto register by requiring




no one is really using this




module Hancock class ConfigurationError < StandardError; end

class App < Sinatra::Defaultenable :sessions

set :sreg_params , [ :email , :first_name , :last_name , :internal ]set :provider_name , 'Hancock SSO Provider!'set :do_not_reply , nil

register Sinatra :: Hancock ::Defaultsregister Sinatra :: Hancock ::Sessionsregister Sinatra :: Hancock ::Usersregister Sinatra :: Hancock ::OpenIDServer

endend

OMG LOOK WHAT I MADE!you can share it with your buddies




under the hoodyo dawg, i heard you were into rack




http://github.com/chneukirchen/rack






bacon




i don’t use it




made up the tumblelog




racku




species the app to run




congurable stuff, ports, hostnames etc




middleware to run also




use




specic middleware




#!/usr/bin/env rackup

use EySso do |sso|sso.only_staff!

end

# vim:filetype=ruby




use in Sinatra




initialize arity




rst parameter is the app




it’s implied




use Rack::HoptoadNotifier,‘ 10c4cc2f6aa6b9e1104a921c5fdae4b0846d4475 ’




Rack::HoptoadNotifier.new(app,‘ 10c4cc2f6aa6b9e1104a921c5fdae4b0846d4475 ’)




initialize w/ a block




use in Rails




cong.middleware.use




it’s a string




script/generate metal




works with Sinatra::Default




use in merb




no rack.session




cong/rack.rb




who still writes merb apps?




use in ramaze




no rack.session




not becoming rails




map




russian doll


#!/ /bi / k




require File .dirname(__FILE__) + '/lib/setup'require 'gateway/app'require 'migration/app'

use Rack ::Static, :urls => [ "/css" , "/img" , "/js" ], :root => "public"

map "/gateway/" douse EySsorun Gateway ::App

end

map "/migration/" douse Rack ::ShowExceptions

if ENV["RACK_ENV"] == "production"use EySso do |sso|

sso.only_staff! end end

run Migration ::App

end

map "/" doapp = lambda do |env|

[ 404 , { "Content-Type" => "text/plain" , "Content-Length" => "9" }, [ "Not found" ]] end

run append




with a url helper hack




helpers do def url (path)

request.script_name + path endend






require File .dirname(__FILE__) + '/lib/setup'require 'gateway/app'require 'migration/app'

use Rack ::Static, :urls => [ "/css" , "/img" , "/js" ], :root => "public"

map "/gateway/" douse EySsorun Gateway ::App

end

map "/migration/" douse Rack ::ShowExceptions

if ENV["RACK_ENV"] == "production"use EySso do |sso|

sso.only_staff! end end

run Migration ::App

end

map "/" doapp = lambda do |env|

[ 404 , { "Content-Type" => "text/plain" , "Content-Length" => "9" }, [ "Not found" ]] end

run append




every day kinda stuff




so back to sinatra




Sinatra::Base




this is middleware




you should really read the docs




straight rack, no sinatra




major frameworks integrate ok




this is a sinatra application




these are FUN




your rackup les invoke these




so you got all that, right?




Deployment




easy




Passenger




nginx




http {...server {

listen 80;server_name hancock.atmos.orgroot /data/hancock;passenger_enabled on; # <--- These linespassenger_base_uri /hancock; # <--- added.

}...}

nginx cong




apache




<VirtualHost *:80>ServerName hancock.atmos.orgDocumentRoot /data/hancock/current/publicRackEnv 'production'

<Directory /data/hancock/current/public>Options FollowSymLinksAllowOverride NoneOrder allow,deny

Allow from all </Directory></VirtualHost>

Apache 2 Vhost Cong




script/




#!/usr/bin/env rubyrequire "irb"require 'rubygems'require 'twitrsvp'

DataMapper .setup( :default , "mysql://atmos:s3cr3t@localhost/twitrsvp_production" )

ENV['TWIT_RSVP_READKEY'] = '4the'ENV['TWIT_RSVP_READSECRET'] = 'lulz'

include ::TwitRSVP

if __FILE__ == $0 IRB.start(__FILE__)else

# check -e option if /^-e$/ =~ $0 IRB.start(__FILE__) else IRB.setup(__FILE__) endend

script/console




crons, whatever




gnu screen




TestingFleshing things out




i’m a huge fan




TATFT




acceptance testing




TDD as a design tool




Sinatra::Test




is Deprecated




Sticky Sessions Inside Your Tests




rack-testhttp://github.com/brynary/rack-test/tree/master


http://github.com/brynary/rack-test/tree/master

http://github.com/brynary/rack-test/tree/master



require "rack/test"

class HomepageTest < Test::Unit::TestCase include Rack :: Test :: Methods

def app MyApp. new end

def test_redirect_logged_in_users_to_dashboardauthorize "bryan", "secret"get "/"follow_redirect!

assert_equal "http://example.org/redirected", last_request.urlassert last_response.ok?

endend


http://example.org/redirected

http://example.org/redirected



Webrat Matchers




What You Should Be Doing




Webrathttp://github.com/brynary/webrat


http://github.com/brynary/webrat

http://github.com/brynary/webrat



have_selector("#zendesk_organization_2 .name:contains('Zondervan’)”)




Cucumberhttp://github.com/aslakhellesoy/cucumber/tree/master


http://github.com/aslakhellesoy/cucumber/tree/master

http://github.com/aslakhellesoy/cucumber/tree/master



rack-test verbs instead of visit




webrat selectors for validations




safariwatir and selenium-rc




reflection




simple




reusable




nice performance




not fighting my framework




leverage all the ruby libs




develop like a pro




not overwhelmed with choices




future is known




merb




rails 3




think UNIX




creative juices flowing




hack out something fun




solve something annoying


That’s it! :D



http://github.com/sinatra/sinatra

http://github.com/chneukirchen/rack

http://github.com/atmos/hancock http://github.com/atmos/hancock-client

http://github.com/atmos/hancock-client-r ails

http://github.com/brynary/rack-bug

http://github.com/foca/integrity



http://github.com/atmos/hancock-client-suspenders



http://github.com/atmos/hancock-client











http://github.com/atmos/hancock

http://github.com/atmos/hancock



Hancock




Like Your John Hancock




Single Sign On


gem 'hancock' , '~>0.0.1'require 'hancock'



DataMapper.setup( :default , "sqlite3:///#{Dir.pwd}/development.db" )

Hancock::App.set :views , 'views'Hancock::App.set :public , 'public'Hancock::App.set :environment , :production

Hancock::App.set :provider_name , 'Example SSO Provider'Hancock::App.set :do_not_reply , '[email protected]'

Sinatra::Mailer.config = {

:host => 'smtp.example.com' , :port => '25' , :user => 'sso' , :pass => 'lolerskates' , :auth => :plain # :plain, :login, :cram_md5, the default is no auth :domain => "example.com" # the HELO domain provided by the client to the server}

run Hancock:: App

cong.ru






Example




Hancock-Client




Rack App




Hancock-Client-Rails




metal




\m/




Rails 2.3.x




require File .join( File .dirname( __FILE__ ), 'boot' )require 'hancock'

Rails :: Initializer .run do | config |config. gem 'hancock' , :lib => 'hancock'

config.middleware.use 'Hancock::Client'# all your other normal stuff

end

cong/environment.rb

sinatra 0.9 - corey donohoe

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