symfony components ipc 2009

8/17/2019 Symfony Components Ipc 2009

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Symfony Components

What's in for you?

Fabien Potencier


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Fabien Potencier

• Serial entrepreneur and developer by passion

•

Founder of Sensio (in 1998)

–

A services and consulting companyspecialized in Web technologies

and Internet marketing (France and USA)–

70 people

–

Open-Source specialists

– Big corporate customers

–

Consulting, training, development, web design, … and more– Sponsor of a lot of Open-Source projects

like symfony and Doctrine


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Fabien Potencier

• Creator and lead developer of symfony…

•

and creator and lead developer of some more OSS:

–

symfony components

–

Swift Mailer : Powerful component based mailing library for PHP

–

Twig : Fexible, fast, and secure template language for PHP– Pirum : Simple PEAR Channel Server Manager

– Sismo : PHP continuous integration server

– Lime : Easy to use unit testing library for PHP

–

Twitto : A web framework in a tweet

– Twittee : A Dependency Injection Container in a tweet

–

Pimple : A small PHP 5.3 dependency injection container


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Fabien Potencier

•

Read my technical blog: http://fabien.potencier.org/

•

Follow me on Twitter: @fabpot

• Fork my code on Github: http://github.com/fabpot/


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How many of you use

symfony?


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symfony

•

Full-stack framework (MVC architecture)

•

symfony provides the infrastructure/tools needed for 95% of the web

projects

• Open-Source (MIT License) since 2005

• Based on

–

11 years of Sensio experience building websites for its customers

–

Existing Open-Source projects


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But wait,

symfony is a monolithic

framework, right?


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A bit of history

symfony 1.0 (January 2007) started as a glue between existingOpen-Source libraries


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A bit of history

symfony 1.1 (June 2008) was a big refactoring of the code base

–

Decoupled the main component: like Forms, Routing, Cache, YAML, ORMs, …

platform

sfEventDispatcher

sfRequest sfResponsesfRouting sfUser

sfStorage sfCache

sfI18N

sfForm

sfLogger

sfDatabase

sfValidator sfWidget

sfYAML

sfCoreAutoload

sfOutputEscaper


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The symfony (1.2/1.3/1.4) MVCframework is based on a set of

cohesive but decoupled classes,the symfony components


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Symfony Components

•

Announced in May 2009

•

Standalone components

•

Packaged individually

•

No dependencies

•

Release cycle independent of Symfony, the framework


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Symfony Components

Dedicated website for each component (with code and documentation)http://components.symfony-project.org/

Dedicated Subversion and Git repository

http://svn.symfony-project.com/components/

http://github.com/fabpot


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Symfony Components

They have been migrated to PHP 5.3

http://svn.symfony-project.com/branches/2.0/lib/Symfony/Components


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Symfony Components

Each “old” PHP 5.2 symfony component has been branched

and a 1.0 version will be released soon

http://svn.symfony-project.com/components/


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Symfony Components

•

Extracted from symfony 1

– Event Dispatcher

– YAML

–

Output Escaper

•

Written from scratch for Symfony 2

– Dependency Injection Container

– Request Handler

–

Templating• We don’t want to duplicate eff ort done by Zend Framework


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Symfony\Components\Templating

Symfony Templating


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Symfony Templating

•

Thin layer on top of PHP

that adds some template-oriented features

• Can work with Template Engines (Smarty, Twig, …)

New Templating Framework


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New Templating Framework

•

4 sub-components

–

Template Engine

–

Template Renderers

–

Template Loaders– Template Storages


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use Symfony\Components\Templating\Engine;

use Symfony\Components\Templating\Loader\FilesystemLoader;

$loader = new FilesystemLoader(

'/path/to/templates/%name%.php'

);

$t = new Engine($loader);

echo $t->render('index', array('name' => 'Fabien'));

Template Loaders


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p

•

No assumption about where and how templates are to be found

–

Filesystem

– Database

–

Memory, …

•

Built-in loaders: FilesystemLoader, ChainLoader, CacheLoader•

Template names are « logical » names:

$loader = new FilesystemLoader('/path/to/templates/%name%.php');

Template Renderers


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p

•

No assumption about the format of the templates

•

Template names are prexed with the renderer name:

– index == php:index

– user:index

$t = new Engine($loader, array('user' => new ProjectTemplateRenderer(),'php' => new PhpRenderer(),

));

Template Embedding


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p g

Hello

Template Inheritance


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p

Hello

Template Slots


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Hello World!

Template Multiple Inheritance


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A layout can be decorated by another layout

Each layout can override slots


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Templating

A CMS example


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http://fabien.potencier.org/talk/33/php-barcelona-symfony-2-0-on-PHP-5-3?position=76


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Symfony Components

Dependency Injection


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Symfony\Components\DependencyInjection


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« Dependency Injection is where components

are given their dependencies through their

constructors, methods, or directly into elds. »

http://www.picocontainer.org/injection.html


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class Message{public function __construct()

{$this->output = new Output();

}}

class Message{public function __construct(OutputInterface $output){$this->output = $output;

}}

DI Hello World example


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class Message{public function __construct(OutputInterface $output, array $options){$this->output = $output;

$this->options = array_merge(array('with_newline' => false), $options);}

public function say($msg){

$this->output->render($msg.($this->options['with_newline'] ? "\n" : ''));

}}



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interface OutputInterface

{ public function render($msg);}

class Output implements OutputInterface{

public function render($msg){echo $msg;

}}

class FancyOutput implements OutputInterface{

public function render($msg){echo sprintf("\033[33m%s\033[0m", $msg);

}}



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$output = new FancyOutput();$message = new Message($output, array('with_newline' => true));

$message->say('Hello World');


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A DI container facilitates

objects description and object relationships,

congures and instantiates objects

DI Container Hello World example


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use Symfony\Components\DependencyInjection\Builder;use Symfony\Components\DependencyInjection\Reference;

$container = new Builder();

$container->register('output', 'FancyOutput');

$container->register('message', 'Message')->setArguments(array(new Reference('output'), array('with_newline' => true)))

;

$container->message->say('Hello World!');

$ $ t i


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Get the conguration for the message service

The Message constructor must be given an output service

Get the output object from the container

Create a Message object by passing the constructor arguments

$message = $container->message;


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$message = $container->message;

is roughly equivalent to

$output = new FancyOutput();$message = new Message($output, array('with_newline' => true));


$container->register('output', 'FancyOutput');$container->register('message', 'Message')->

( ( f (' ') (' i h li ' )))


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setArguments(array(new Reference('output'), array('with_newline' => true)));


true

$container = new Builder();$loader = new XmlFileLoader($container);$loader->load('services.xml');

PHP

XML

XML is validated

against an XSD


$container->register('output', 'FancyOutput');$container->

register('message' 'Message')->


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register( message , Message )->setArguments(array(new sfServiceReference('output'), array('with_newline' => true)))

;


services:output: { class: FancyOutput }message:class: Message

arguments:- @output- { with_newline: true }

$container = new Builder();$loader = new YamlFileLoader($container);$loader->load('services.yml');

PHP

YAML

FancyOutput

" "


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true

%message.options%


$loader = new XmlFileLoader($container);$loader->load('services.xml');


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%message.options%

FancyOutput

true

$container = new Builder();$loader = new FileXmlFileLoader($container);$loader->load('services.xml');


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%message.options%

parameters:

output.class: FancyOutput

message.options: { with_newline: true }


$loader = new XmlFileLoader($container);$loader->load('services.xml');

Loaders & Dumpers


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•

IniFileLoader

•

XmlFileLoader

•

YamlFileLoader

•

XmlDumper

•

YamlDumper

•

PhpDumper

•

GraphvizDumper

Make your container

VERY fast

use Symfony\Components\DependencyInjection\Builder;


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use Symfony\Components\DependencyInjection\Builder;use Symfony\Components\DependencyInjection\Reference;use Symfony\Components\DependencyInjection\Dumper\XmlDumper;use Symfony\Components\DependencyInjection\Dumper\YamlDumper;use Symfony\Components\DependencyInjection\Dumper\PhpDumper;use Symfony\Components\DependencyInjection\Loader\XmlFileLoader;use Symfony\Components\DependencyInjection\Loader\YamlFileLoader;


$container->register('output', 'FancyOutput');

$container-> register('message', 'Message')-> setArguments(array(new Reference('output'), array('with_newline' => true)))

;

$dumper = new XmlDumper($container);


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file_put_contents(__DIR__.'/container.xml', $dumper->dump());

$loader = new XmlFileLoader($container);$loader->load(__DIR__.'/container.xml');

$dumper = new YamlDumper($container);

file_put_contents(__DIR__.'/container.yml', $dumper->dump());

$loader = new YamlFileLoader($container);$loader->load(__DIR__.'/container.yml');

$dumper = new PhpDumper($container);echo $dumper->dump();

use Symfony\Components\DependencyInjection\Container;use Symfony\Components\DependencyInjection\Reference;use Symfony\Components\DependencyInjection\Parameter;

l P j tS i C t i t d C t i


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class ProjectServiceContainer extends Container{

protected $shared = array();

protected function getOutputService(){if (isset($this->shared['output'])) return $this->shared['output'];

$instance = new FancyOutput();

return $this->shared['output'] = $instance;}

protected function getMessageService(){if (isset($this->shared['message'])) return $this->shared['message'];

$instance = new Message($this->getService('output'), array('with_newline' => true));

return $this->shared['message'] = $instance;}

}


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use Symfony\Components\DependencyInjection\Dumper\GraphvizDumper;

$dumper = new GraphvizDumper($container);echo $dumper->dump();


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digraph sc {ratio="compress"node [fontsize="11" fontname="Arial" shape="record"];edge [fontsize="9" fontname="Arial" color="grey" arrowhead="open" arrowsize="0.5"];

node_output [label="output\nFancyOutput\n", shape=record, fillcolor="#eeeeee", style="filled"];node_message [label="message\nMessage\n", shape=record, fillcolor="#eeeeee", style="filled"];node_service_container [label="service_container\nSymfony\\Components\\DependencyInjection\\Builder

\n", shape=record, fillcolor="#9999ff", style="filled"];node_message -> node_output [label="" style="filled"];

}


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Symfony Components

Output Escaper

f


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Symfony\Components\OutputEscaper

Output Escaper

P id t ti XSS t ti f t l t


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•

Provides automatic XSS protection for your templates

•

By wrapping template variables• Works for

– strings

–

arrays

–

objects• properties

• methods

•

__call(), __get(), …

• Iterators, Coutables, …

•

…

• Works for deep method calls


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use Symfony\Components\OutputEscaper\Escaper;

$title = 'Foo
';

echo Escaper::escape(ESC_SPECIALCHARS, $title);



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$article = array('title' => 'Foo
','author' => array('name' => 'Fabien
',

)

);

$article = Escaper::escape(ESC_SPECIALCHARS, $article);

echo $article['title']."\n";

echo $article['author']['name']."\n";

class Article{protected $title;protected $author;


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public $full_title;

public function __construct($title, Author $author){$this->title = $title;$this->full_title = $title;$this->author = $author;

}

public function getTitle() { return $this->title; }public function getAuthor() { return $this->author; }public function __get($key) { return $this->$key; }public function __call($method, $arguments){return $this->{'get'.$method}();

}}

public property

public method

public method returning

another object

magic __get()magic __call()


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class Author{protected $name;

public function __construct($name) { $this->name = $name; }public function getName() { return $this->name; }

}



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$article = new Article(

'foo
',new Author('Fabien
')

);

$article = Escaper::escape(ESC_SPECIALCHARS, $article);

echo $article->getTitle()."\n";echo $article->getAuthor()->getName()."\n";echo $article->full_title."\n";

echo $article->title."\n";echo $article->title()."\n";

Escaping Strategy


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echo $article->getHtmlContent(ESC_RAW);

echo $article->getTitle(ESC_JS);

explicitly ask

for raw data

change the default

escaping strategy

with Matthew Weier O’Pheinney

symfony-live.com


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I will reveal the first alpha release of Symfony 2.0!

with Matthew Weier O’Pheinney

symfony-live.com


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… with Matthew Weier O'Phinney as a special guest


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Thank you!

My slides on slideshare.com/fabpotwith a bonus: How to use Symfony Components with ZF!

Sensio S.A.

92 98 boulevard Victor Hugo


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92-98, boulevard Victor Hugo

92 115 Clichy Cedex

FRANCE

Tél. : +33 1 40 99 80 80

ContactFabien Potencier

fabien.potencier at sensio.com

http://www.sensiolabs.com/

http://www.symfony-project.org/http://fabien.potencier.org/

BONUS


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How to use Symfony Components

within a Zend Framework project?

B O N U S

Symfony components in a ZF project

• Symfony Components can make your ZF application better


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Symfony Components can make your ZF application better

–

More congurable: symfony YAML– More exible: symfony Event Dispatcher

–

Faster: symfony Dependency Injection

– More secure: symfony Output Escaper

•

… and more fun of course

Symfony Components in a ZF project

• The examples in this presentation are just to get you started faster


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The examples in this presentation are just to get you started faster

• So, be creative with them. They open all kind of opportunities for your

next Zend Framework project

•

And please, give me feedback, and tell me what you do with theSymfony Components


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Symfony Components

Event Dispatcher

class Bootstrap extends Zend_Application_Bootstrap_Bootstrap{public function run(){require once '/path/to/sfEventDispatcher php';


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require_once /path/to/sfEventDispatcher.php ;

$dispatcher = new sfEventDispatcher();

$event = new sfEvent(null, 'bootstrap.prerun');$dispatcher->notify($event);

parent::run();

$event = new sfevent(null, 'bootstrap.postrun');$dispatcher->notify($event);

}

}


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Symfony Components

Dependency Injection

class Bootstrap extends Zend_Application_Bootstrap_Bootstrap

{public function getContainer(){if (null === $this->_container){

$this->setContainer($this-> initContainer());


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Example from Ben Eberlei (he rocks!): http://www.whitewashing.de/blog/articles/118

$ ($ _ ());}

return $this->_container;}

protected function _initContainer(){require_once '/path/to/sfServiceContainerAutoloader.php';

sfServiceContainerAutoloader::register();

$container = new sfServiceContainerBuilder();

$loader = new sfServiceContainerLoaderFileXml($container);$loader->load(dirname(__FILE__).'/configs/resources.xml');

return $container;}}

foobarZend Mail


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Zend_Mail

smtp.gmail.com

login%mailer.username%

%mailer.password%ssl465

parameters:mailer.username: foomailer.password: barmailer.class: Zend_Mail

i


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services:

mail.transport:class: Zend_Mail_Transport_Smtparguments: [smtp.gmail.com, { auth: login, username:

%mailer.username%, password: %mailer.password%, ssl: ssl, port: 465 }]shared: false

mailer:class: %mailer.class%calls:- [setDefaultTransport, [@mail.transport]]

class GuestbookController extends Zend_Controller_Action{

public function indexAction(){$ tb k D f lt M d l G tb k()


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$guestbook = new Default_Model_Guestbook();

$this->view->entries = $guestbook->fetchAll();

$container = $this->getInvokeArg('bootstrap')->getContainer();$mailer = $container->mailer;

}}

Dependency Injection Container

•

By default in ZF, new resources can be added to the container but cannot


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be lazy-loaded–

All resources used by Zend_Application are loaded on every request

•

By using symfony Service Container, the resources are lazy-loaded

– Instances and their dependencies are created the rst time you get them

•

Interesting for resources like DB


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Symfony Components

Output Escaper

require_once '/path/to/sfOutputEscaperAutoloader.php';

sfOutputEscaperAutoloader::register();

class My_View extends Zend_View{

public function set($key $val)


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public function __set($key, $val)

{ if ('_' === substr($key, 0, 1)){// throw an exception

}

$this->$key = sfOutputEscaper::escape(array($this, 'escape'), $val);}

}


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