Add browserkit component documentation

components/browser_kit/index.rst

@@ -0,0 +1,7 @@
+BrowserKit
+==========
+
+.. toctree::
+    :maxdepth: 2
+
+    introduction

components/browser_kit/introduction.rst

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+.. index::
+   single: BrowserKit
+   single: Components; BrowserKit
+
+The BrowserKit Component
+========================
+
+    The BrowserKit component simulates the behavior of a web browser.
+
+The BrowserKit component allows you to make web requests, click on links and submit forms. 
+
+Installation
+------------
+
+You can install the component in two different ways:
+
+* :doc:`Install it via Composer </components/using_components>` (``symfony/browser-kit`` on `Packagist`_);
+* Use the official Git repository (https://github.com/symfony/BrowserKit).
+
+Basic Usage
+-----------
+
+.. note::
+
+    The component only provides an abstract client and does not provide any "default" backend for the HTTP layer.
+
+Creating a Client
+-----------------
+
+To create your own client you must extend the abstract client class and implement the doRequest method.
+This method accepts a requests and should return a response.
+
+.. code-block:: php
+
+    namespace ACME;
+
+    use Symfony\Component\BrowserKit\Client as BaseClient;
+    use Symfony\Component\BrowserKit\Response;
+
+    class Client extends BaseClient 
+    {
+        protected function doRequest($request) 
+        {
+            // convert request into a response
+            // ...
+            return new Response($content, $status, $headers);
+        }
+    }
+
+For a simple implementation of a browser based on an HTTP layer, have a look at Goutte_.
+
+For an implementation based on ``HttpKernelInterface``, have a look at the Client provided by the :doc:`/components/http_kernel/introduction`.
+
+
+Making Requests
+~~~~~~~~~~~~~~~
+
+To make a request you use the client's request_ method. 
+The first two arguments are for the HTTP method and the request URL.
+The request method will return a crawler object.
+
+.. code-block:: php
+
+    use ACME\Client;
+
+    $client = new Client();
+    $crawler = $client->request('GET', 'http://symfony.com');
+
+Clicking Links
+~~~~~~~~~~~~~~
+
+Select a link with the crawler and pass it to the click_ method to click on the link.
+
+.. code-block:: php
+
+    use ACME\Client;
+
+    $client = new Client();
+    $crawler = $client->request('GET', 'http://symfony.com');
+    $link = $crawler->selectLink('Go elsewhere...')->link();
+    $client->click($link);
+
+Submiting Forms
+~~~~~~~~~~~~~~~
+
+You can submit forms with the submit method which takes a form object.
+You can get the form object by using the crawler to select the button and running the form method.
+
+.. code-block:: php
+
+    use ACME\Client;
+
+    // make a real request to an external site
+    $client = new Client();
+    $crawler = $client->request('GET', 'https://github.com/login');
+
+    // select the form and fill in some values
+    $form = $crawler->selectButton('Log in')->form();
+    $form['login'] = 'symfonyfan';
+    $form['password'] = 'anypass';
+
+    // submit that form
+    $crawler = $client->submit($form);
+
+Cookies
+-------
+
+Retreiving Cookies
+~~~~~~~~~~~~~~~~~~ 
+
+The Crawler has a cookieJar which is a container for storing and recieving cookies.
+
+.. code-block:: php
+
+    use ACME\Client;
+
+    // Make a request
+    $client = new Client();
+    $crawler = $client->request('GET', 'http://symfony.com');
+
+    // Get the cookie Jar
+    $cookieJar = $crawler->getCookieJar();
+
+    // Get a cookie by name
+    $flavor = $cookieJar->get('flavor');
+
+    // Get cookie data
+    $name = $flavor->getName();
+    $value = $flavor->getValue();
+    $raw = $flavor->getRawValue();
+    $secure = $flavor->isSecure();
+    $isHttpOnly = $flavor->isHttpOnly();
+    $isExpired = $flavor->isExpired();
+    $expires = $flavor->getExpiresTime();
+    $path = $flavor->getPath();
+    $domain = $flavor->getDomain();
+
+Looping Through Cookies
+~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: php
+
+    use ACME\Client;
+
+    // Make a request
+    $client = new Client();
+    $crawler = $client->request('GET', 'http://symfony.com');
+
+    // Get the cookie Jar
+    $cookieJar = $crawler->getCookieJar();
+
+    // Get array with all cookies
+    $cookies = $cookieJar->all();
+    foreach($cookies as $cookie) 
+    {
+        // ...
+    }
+
+    // Get all values
+    $values = $cookieJar->allValues('http://symfony.com');
+    foreach($values as $value)
+    {
+        // ...
+    }
+
+    // Get all raw values
+    $rawValues = $cookieJar->allRawValues('http://symfony.com');
+    foreach($rawValues as $rawValue)
+    {
+        // ...
+    }
+
+.. note::
+    These cookie jar methods only return cookies that have not expired.
+
+Setting Cookies
+~~~~~~~~~~~~~~~
+
+You can define create cookies and add them to a cookie jar that can be injected it into the client constructor. 
+
+.. code-block:: php
+
+    use ACME\Client;
+
+    // create cookies and add to cookie jar
+    $expires = new \DateTime();
+    $expires->add(new \DateInterval('P1D'));
+    $cookie = new Cookie(
+        'flavor',
+        'chocolate chip',
+        $now->getTimestamp()
+    );
+
+    // create a client and set the cookies
+    $client = new Client(array(), array(), $cookieJar);
+    // ...
+
+History
+-------
+
+The client stores all your requests allowing you to go back and forward in your history.
+
+.. code-block:: php
+
+    use ACME\Client;
+
+    // make a real request to an external site
+    $client = new Client();
+    $home_crawler = $client->request('GET', 'http://symfony.com');
+
+    // select and click on a link
+    $doc_link = $crawler->selectLink('Documentation')->link();
+    $doc_crawler = $client->click($link);
+
+    // go back to home page
+    $home_crawler = $client->back();
+
+    // go forward to documentation page
+    $doc_crawler = $client->forward();
+
+You can restart the client's history with the restart method. This will also clear out the CookieJar.
+
+.. code-block:: php
+
+    use ACME\Client;
+
+    // make a real request to an external site
+    $client = new Client();
+    $home_crawler = $client->request('GET', 'http://symfony.com');
+
+    // restart history
+    $client->restart();
+
+
+.. _Packagist: https://packagist.org/packages/symfony/browser-kit
+.. _Goutte: https://github.com/fabpot/Goutte
+.. _request: http://api.symfony.com/2.3/Symfony/Component/BrowserKit/Client.html#method_request
+.. _click: http://api.symfony.com/2.3/Symfony/Component/BrowserKit/Client.html#method_click

components/index.rst

@@ -5,6 +5,7 @@ The Components
     :hidden:
 
     using_components
+    browser_kit/index
     class_loader/index
     config/index
     console/index

components/map.rst.inc

@@ -1,5 +1,9 @@
 * :doc:`/components/using_components`
 
+* :doc:`/components/browser_kit/index`
+
+  * :doc:`/components/browser_kit/introduction`
+
 * :doc:`/components/class_loader/index`
 
   * :doc:`/components/class_loader/introduction`