vendor/symfony/src/Symfony/Component/BrowserKit/Client.php
changeset 0 7f95f8617b0b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/BrowserKit/Client.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,483 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\BrowserKit;
+
+use Symfony\Component\DomCrawler\Crawler;
+use Symfony\Component\DomCrawler\Link;
+use Symfony\Component\DomCrawler\Form;
+use Symfony\Component\Process\PhpProcess;
+use Symfony\Component\BrowserKit\Request;
+use Symfony\Component\BrowserKit\Response;
+use Symfony\Component\BrowserKit\Client;
+
+/**
+ * Client simulates a browser.
+ *
+ * To make the actual request, you need to implement the doRequest() method.
+ *
+ * If you want to be able to run requests in their own process (insulated flag),
+ * you need to also implement the getScript() method.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @api
+ */
+abstract class Client
+{
+    protected $history;
+    protected $cookieJar;
+    protected $server;
+    protected $request;
+    protected $response;
+    protected $crawler;
+    protected $insulated;
+    protected $redirect;
+    protected $followRedirects;
+
+    /**
+     * Constructor.
+     *
+     * @param array     $server    The server parameters (equivalent of $_SERVER)
+     * @param History   $history   A History instance to store the browser history
+     * @param CookieJar $cookieJar A CookieJar instance to store the cookies
+     *
+     * @api
+     */
+    public function __construct(array $server = array(), History $history = null, CookieJar $cookieJar = null)
+    {
+        $this->setServerParameters($server);
+        $this->history = null === $history ? new History() : $history;
+        $this->cookieJar = null === $cookieJar ? new CookieJar() : $cookieJar;
+        $this->insulated = false;
+        $this->followRedirects = true;
+    }
+
+    /**
+     * Sets whether to automatically follow redirects or not.
+     *
+     * @param Boolean $followRedirect Whether to follow redirects
+     *
+     * @api
+     */
+    public function followRedirects($followRedirect = true)
+    {
+        $this->followRedirects = (Boolean) $followRedirect;
+    }
+
+    /**
+     * Sets the insulated flag.
+     *
+     * @param Boolean $insulated Whether to insulate the requests or not
+     *
+     * @throws \RuntimeException When Symfony Process Component is not installed
+     *
+     * @api
+     */
+    public function insulate($insulated = true)
+    {
+        if (!class_exists('Symfony\\Component\\Process\\Process')) {
+            // @codeCoverageIgnoreStart
+            throw new \RuntimeException('Unable to isolate requests as the Symfony Process Component is not installed.');
+            // @codeCoverageIgnoreEnd
+        }
+
+        $this->insulated = (Boolean) $insulated;
+    }
+
+    /**
+     * Sets server parameters.
+     *
+     * @param array $server An array of server parameters
+     *
+     * @api
+     */
+    public function setServerParameters(array $server)
+    {
+        $this->server = array_merge(array(
+            'HTTP_HOST'       => 'localhost',
+            'HTTP_USER_AGENT' => 'Symfony2 BrowserKit',
+        ), $server);
+    }
+
+    /**
+     * Sets single server parameter.
+     *
+     * @param string $key   A key of the parameter
+     * @param string $value A value of the parameter
+     */
+    public function setServerParameter($key, $value)
+    {
+        $this->server[$key] = $value;
+    }
+
+    /**
+     * Gets single server parameter for specified key.
+     *
+     * @param string $key     A key of the parameter to get
+     * @param string $default A default value when key is undefined
+     * @return string A value of the parameter
+     */
+    public function getServerParameter($key, $default = '')
+    {
+        return (isset($this->server[$key])) ? $this->server[$key] : $default;
+    }
+
+    /**
+     * Returns the History instance.
+     *
+     * @return History A History instance
+     *
+     * @api
+     */
+    public function getHistory()
+    {
+        return $this->history;
+    }
+
+    /**
+     * Returns the CookieJar instance.
+     *
+     * @return CookieJar A CookieJar instance
+     *
+     * @api
+     */
+    public function getCookieJar()
+    {
+        return $this->cookieJar;
+    }
+
+    /**
+     * Returns the current Crawler instance.
+     *
+     * @return Crawler A Crawler instance
+     *
+     * @api
+     */
+    public function getCrawler()
+    {
+        return $this->crawler;
+    }
+
+    /**
+     * Returns the current Response instance.
+     *
+     * @return Response A Response instance
+     *
+     * @api
+     */
+    public function getResponse()
+    {
+        return $this->response;
+    }
+
+    /**
+     * Returns the current Request instance.
+     *
+     * @return Request A Request instance
+     *
+     * @api
+     */
+    public function getRequest()
+    {
+        return $this->request;
+    }
+
+    /**
+     * Clicks on a given link.
+     *
+     * @param Link $link A Link instance
+     *
+     * @api
+     */
+    public function click(Link $link)
+    {
+        if ($link instanceof Form) {
+            return $this->submit($link);
+        }
+
+        return $this->request($link->getMethod(), $link->getUri());
+    }
+
+    /**
+     * Submits a form.
+     *
+     * @param Form  $form   A Form instance
+     * @param array $values An array of form field values
+     *
+     * @api
+     */
+    public function submit(Form $form, array $values = array())
+    {
+        $form->setValues($values);
+
+        return $this->request($form->getMethod(), $form->getUri(), $form->getPhpValues(), $form->getPhpFiles());
+    }
+
+    /**
+     * Calls a URI.
+     *
+     * @param string  $method        The request method
+     * @param string  $uri           The URI to fetch
+     * @param array   $parameters    The Request parameters
+     * @param array   $files         The files
+     * @param array   $server        The server parameters (HTTP headers are referenced with a HTTP_ prefix as PHP does)
+     * @param string  $content       The raw body data
+     * @param Boolean $changeHistory Whether to update the history or not (only used internally for back(), forward(), and reload())
+     *
+     * @return Crawler
+     *
+     * @api
+     */
+    public function request($method, $uri, array $parameters = array(), array $files = array(), array $server = array(), $content = null, $changeHistory = true)
+    {
+        $uri = $this->getAbsoluteUri($uri);
+
+        $server = array_merge($this->server, $server);
+        if (!$this->history->isEmpty()) {
+            $server['HTTP_REFERER'] = $this->history->current()->getUri();
+        }
+        $server['HTTP_HOST'] = parse_url($uri, PHP_URL_HOST);
+        $server['HTTPS'] = 'https' == parse_url($uri, PHP_URL_SCHEME);
+
+        $request = new Request($uri, $method, $parameters, $files, $this->cookieJar->allValues($uri), $server, $content);
+
+        $this->request = $this->filterRequest($request);
+
+        if (true === $changeHistory) {
+            $this->history->add($request);
+        }
+
+        if ($this->insulated) {
+            $this->response = $this->doRequestInProcess($this->request);
+        } else {
+            $this->response = $this->doRequest($this->request);
+        }
+
+        $response = $this->filterResponse($this->response);
+
+        $this->cookieJar->updateFromResponse($response, $uri);
+
+        $this->redirect = $response->getHeader('Location');
+
+        if ($this->followRedirects && $this->redirect) {
+            return $this->crawler = $this->followRedirect();
+        }
+
+        return $this->crawler = $this->createCrawlerFromContent($request->getUri(), $response->getContent(), $response->getHeader('Content-Type'));
+    }
+
+    /**
+     * Makes a request in another process.
+     *
+     * @param Request $request A Request instance
+     *
+     * @return Response A Response instance
+     *
+     * @throws \RuntimeException When processing returns exit code
+     */
+    protected function doRequestInProcess($request)
+    {
+        // We set the TMPDIR (for Macs) and TEMP (for Windows), because on these platforms the temp directory changes based on the user.
+        $process = new PhpProcess($this->getScript($request), null, array('TMPDIR' => sys_get_temp_dir(), 'TEMP' => sys_get_temp_dir()));
+        $process->run();
+
+        if (!$process->isSuccessful() || !preg_match('/^O\:\d+\:/', $process->getOutput())) {
+            throw new \RuntimeException($process->getErrorOutput());
+        }
+
+        return unserialize($process->getOutput());
+    }
+
+    /**
+     * Makes a request.
+     *
+     * @param Request $request A Request instance
+     *
+     * @return Response A Response instance
+     */
+    abstract protected function doRequest($request);
+
+    /**
+     * Returns the script to execute when the request must be insulated.
+     *
+     * @param Request $request A Request instance
+     *
+     * @throws \LogicException When this abstract class is not implemented
+     */
+    protected function getScript($request)
+    {
+        // @codeCoverageIgnoreStart
+        throw new \LogicException('To insulate requests, you need to override the getScript() method.');
+        // @codeCoverageIgnoreEnd
+    }
+
+    /**
+     * Filters the request.
+     *
+     * @param Request $request The request to filter
+     *
+     * @return Request
+     */
+    protected function filterRequest(Request $request)
+    {
+        return $request;
+    }
+
+    /**
+     * Filters the Response.
+     *
+     * @param Response $response The Response to filter
+     *
+     * @return Response
+     */
+    protected function filterResponse($response)
+    {
+        return $response;
+    }
+
+    /**
+     * Creates a crawler.
+     *
+     * @param string $uri A uri
+     * @param string $content Content for the crawler to use
+     * @param string $type Content type
+     *
+     * @return Crawler
+     */
+    protected function createCrawlerFromContent($uri, $content, $type)
+    {
+        $crawler = new Crawler(null, $uri);
+        $crawler->addContent($content, $type);
+
+        return $crawler;
+    }
+
+    /**
+     * Goes back in the browser history.
+     *
+     * @return Crawler
+     *
+     * @api
+     */
+    public function back()
+    {
+        return $this->requestFromRequest($this->history->back(), false);
+    }
+
+    /**
+     * Goes forward in the browser history.
+     *
+     * @return Crawler
+     *
+     * @api
+     */
+    public function forward()
+    {
+        return $this->requestFromRequest($this->history->forward(), false);
+    }
+
+    /**
+     * Reloads the current browser.
+     *
+     * @return Crawler
+     *
+     * @api
+     */
+    public function reload()
+    {
+        return $this->requestFromRequest($this->history->current(), false);
+    }
+
+    /**
+     * Follow redirects?
+     *
+     * @return Crawler
+     *
+     * @throws \LogicException If request was not a redirect
+     *
+     * @api
+     */
+    public function followRedirect()
+    {
+        if (empty($this->redirect)) {
+            throw new \LogicException('The request was not redirected.');
+        }
+
+        return $this->request('get', $this->redirect);
+    }
+
+    /**
+     * Restarts the client.
+     *
+     * It flushes history and all cookies.
+     *
+     * @api
+     */
+    public function restart()
+    {
+        $this->cookieJar->clear();
+        $this->history->clear();
+    }
+
+    /**
+     * Takes a URI and converts it to absolute if it is not already absolute.
+     *
+     * @param string $uri A uri
+     * @return string An absolute uri
+     */
+    protected function getAbsoluteUri($uri)
+    {
+        // already absolute?
+        if ('http' === substr($uri, 0, 4)) {
+            return $uri;
+        }
+
+        if (!$this->history->isEmpty()) {
+            $currentUri = $this->history->current()->getUri();
+        } else {
+            $currentUri = sprintf('http%s://%s/',
+                isset($this->server['HTTPS']) ? 's' : '',
+                isset($this->server['HTTP_HOST']) ? $this->server['HTTP_HOST'] : 'localhost'
+            );
+        }
+
+        // anchor?
+        if (!$uri || '#' == $uri[0]) {
+            return preg_replace('/#.*?$/', '', $currentUri).$uri;
+        }
+
+        if ('/' !== $uri[0]) {
+            $path = parse_url($currentUri, PHP_URL_PATH);
+
+            if ('/' !== substr($path, -1)) {
+                $path = substr($path, 0, strrpos($path, '/') + 1);
+            }
+
+            $uri = $path.$uri;
+        }
+
+        return preg_replace('#^(.*?//[^/]+)\/.*$#', '$1', $currentUri).$uri;
+    }
+
+    /**
+     * Makes a request from a Request object directly.
+     *
+     * @param Request $request       A Request instance
+     * @param Boolean $changeHistory Whether to update the history or not (only used internally for back(), forward(), and reload())
+     *
+     * @return Crawler
+     */
+    protected function requestFromRequest(Request $request, $changeHistory = true)
+    {
+        return $this->request($request->getMethod(), $request->getUri(), $request->getParameters(), array(), $request->getFiles(), $request->getServer(), $request->getContent(), $changeHistory);
+    }
+}