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<?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\BrowserKit\Exception\BadMethodCallException;
use Symfony\Component\DomCrawler\Crawler;
use Symfony\Component\DomCrawler\Form;
use Symfony\Component\DomCrawler\Link;
use Symfony\Component\Process\PhpProcess;
/**
* 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>
*
* @deprecated since Symfony 4.3, use "\Symfony\Component\BrowserKit\AbstractBrowser" instead
*/
abstract class Client
{
protected $history;
protected $cookieJar;
protected $server = [];
protected $internalRequest;
protected $request;
protected $internalResponse;
protected $response;
protected $crawler;
protected $insulated = false;
protected $redirect;
protected $followRedirects = true;
protected $followMetaRefresh = false;
private $maxRedirects = -1;
private $redirectCount = 0;
private $redirects = [];
private $isMainRequest = true;
/**
* @param array $server The server parameters (equivalent of $_SERVER)
*/
public function __construct(array $server = [], History $history = null, CookieJar $cookieJar = null)
{
$this->setServerParameters($server);
$this->history = $history ?? new History();
$this->cookieJar = $cookieJar ?? new CookieJar();
}
/**
* Sets whether to automatically follow redirects or not.
*
* @param bool $followRedirect Whether to follow redirects
*/
public function followRedirects($followRedirect = true)
{
$this->followRedirects = (bool) $followRedirect;
}
/**
* Sets whether to automatically follow meta refresh redirects or not.
*/
public function followMetaRefresh(bool $followMetaRefresh = true)
{
$this->followMetaRefresh = $followMetaRefresh;
}
/**
* Returns whether client automatically follows redirects or not.
*
* @return bool
*/
public function isFollowingRedirects()
{
return $this->followRedirects;
}
/**
* Sets the maximum number of redirects that crawler can follow.
*
* @param int $maxRedirects
*/
public function setMaxRedirects($maxRedirects)
{
$this->maxRedirects = $maxRedirects < 0 ? -1 : $maxRedirects;
$this->followRedirects = -1 != $this->maxRedirects;
}
/**
* Returns the maximum number of redirects that crawler can follow.
*
* @return int
*/
public function getMaxRedirects()
{
return $this->maxRedirects;
}
/**
* Sets the insulated flag.
*
* @param bool $insulated Whether to insulate the requests or not
*
* @throws \RuntimeException When Symfony Process Component is not installed
*/
public function insulate($insulated = true)
{
if ($insulated && !class_exists(\Symfony\Component\Process\Process::class)) {
throw new \LogicException('Unable to isolate requests as the Symfony Process Component is not installed.');
}
$this->insulated = (bool) $insulated;
}
/**
* Sets server parameters.
*
* @param array $server An array of server parameters
*/
public function setServerParameters(array $server)
{
$this->server = array_merge([
'HTTP_USER_AGENT' => 'Symfony 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 mixed $default A default value when key is undefined
*
* @return mixed A value of the parameter
*/
public function getServerParameter($key, $default = '')
{
return $this->server[$key] ?? $default;
}
public function xmlHttpRequest(string $method, string $uri, array $parameters = [], array $files = [], array $server = [], string $content = null, bool $changeHistory = true): Crawler
{
$this->setServerParameter('HTTP_X_REQUESTED_WITH', 'XMLHttpRequest');
try {
return $this->request($method, $uri, $parameters, $files, $server, $content, $changeHistory);
} finally {
unset($this->server['HTTP_X_REQUESTED_WITH']);
}
}
/**
* Returns the History instance.
*
* @return History A History instance
*/
public function getHistory()
{
return $this->history;
}
/**
* Returns the CookieJar instance.
*
* @return CookieJar A CookieJar instance
*/
public function getCookieJar()
{
return $this->cookieJar;
}
/**
* Returns the current Crawler instance.
*
* @return Crawler A Crawler instance
*/
public function getCrawler()
{
if (null === $this->crawler) {
@trigger_error(sprintf('Calling the "%s()" method before the "request()" one is deprecated since Symfony 4.1 and will throw an exception in 5.0.', static::class.'::'.__FUNCTION__), \E_USER_DEPRECATED);
// throw new BadMethodCallException(sprintf('The "request()" method must be called before "%s()".', __METHOD__));
}
return $this->crawler;
}
/**
* Returns the current BrowserKit Response instance.
*
* @return Response A BrowserKit Response instance
*/
public function getInternalResponse()
{
if (null === $this->internalResponse) {
@trigger_error(sprintf('Calling the "%s()" method before the "request()" one is deprecated since Symfony 4.1 and will throw an exception in 5.0.', static::class.'::'.__FUNCTION__), \E_USER_DEPRECATED);
// throw new BadMethodCallException(sprintf('The "request()" method must be called before "%s()".', __METHOD__));
}
return $this->internalResponse;
}
/**
* Returns the current origin response instance.
*
* The origin response is the response instance that is returned
* by the code that handles requests.
*
* @return object A response instance
*
* @see doRequest()
*/
public function getResponse()
{
if (null === $this->response) {
@trigger_error(sprintf('Calling the "%s()" method before the "request()" one is deprecated since Symfony 4.1 and will throw an exception in 5.0.', static::class.'::'.__FUNCTION__), \E_USER_DEPRECATED);
// throw new BadMethodCallException(sprintf('The "request()" method must be called before "%s()".', __METHOD__));
}
return $this->response;
}
/**
* Returns the current BrowserKit Request instance.
*
* @return Request A BrowserKit Request instance
*/
public function getInternalRequest()
{
if (null === $this->internalRequest) {
@trigger_error(sprintf('Calling the "%s()" method before the "request()" one is deprecated since Symfony 4.1 and will throw an exception in 5.0.', static::class.'::'.__FUNCTION__), \E_USER_DEPRECATED);
// throw new BadMethodCallException(sprintf('The "request()" method must be called before "%s()".', __METHOD__));
}
return $this->internalRequest;
}
/**
* Returns the current origin Request instance.
*
* The origin request is the request instance that is sent
* to the code that handles requests.
*
* @return object A Request instance
*
* @see doRequest()
*/
public function getRequest()
{
if (null === $this->request) {
@trigger_error(sprintf('Calling the "%s()" method before the "request()" one is deprecated since Symfony 4.1 and will throw an exception in 5.0.', static::class.'::'.__FUNCTION__), \E_USER_DEPRECATED);
// throw new BadMethodCallException(sprintf('The "request()" method must be called before "%s()".', __METHOD__));
}
return $this->request;
}
/**
* Clicks on a given link.
*
* @return Crawler
*/
public function click(Link $link)
{
if ($link instanceof Form) {
return $this->submit($link);
}
return $this->request($link->getMethod(), $link->getUri());
}
/**
* Clicks the first link (or clickable image) that contains the given text.
*
* @param string $linkText The text of the link or the alt attribute of the clickable image
*/
public function clickLink(string $linkText): Crawler
{
if (null === $this->crawler) {
throw new BadMethodCallException(sprintf('The "request()" method must be called before "%s()".', __METHOD__));
}
return $this->click($this->crawler->selectLink($linkText)->link());
}
/**
* Submits a form.
*
* @param array $values An array of form field values
* @param array $serverParameters An array of server parameters
*
* @return Crawler
*/
public function submit(Form $form, array $values = []/* , array $serverParameters = [] */)
{
if (\func_num_args() < 3 && __CLASS__ !== static::class && __CLASS__ !== (new \ReflectionMethod($this, __FUNCTION__))->getDeclaringClass()->getName() && !$this instanceof \PHPUnit\Framework\MockObject\MockObject && !$this instanceof \Prophecy\Prophecy\ProphecySubjectInterface && !$this instanceof \Mockery\MockInterface) {
@trigger_error(sprintf('The "%s()" method will have a new "array $serverParameters = []" argument in version 5.0, not defining it is deprecated since Symfony 4.2.', static::class.'::'.__FUNCTION__), \E_USER_DEPRECATED);
}
$form->setValues($values);
$serverParameters = 2 < \func_num_args() ? func_get_arg(2) : [];
return $this->request($form->getMethod(), $form->getUri(), $form->getPhpValues(), $form->getPhpFiles(), $serverParameters);
}
/**
* Finds the first form that contains a button with the given content and
* uses it to submit the given form field values.
*
* @param string $button The text content, id, value or name of the form <button> or <input type="submit">
* @param array $fieldValues Use this syntax: ['my_form[name]' => '...', 'my_form[email]' => '...']
* @param string $method The HTTP method used to submit the form
* @param array $serverParameters These values override the ones stored in $_SERVER (HTTP headers must include an HTTP_ prefix as PHP does)
*/
public function submitForm(string $button, array $fieldValues = [], string $method = 'POST', array $serverParameters = []): Crawler
{
if (null === $this->crawler) {
throw new BadMethodCallException(sprintf('The "request()" method must be called before "%s()".', __METHOD__));
}
$buttonNode = $this->crawler->selectButton($button);
$form = $buttonNode->form($fieldValues, $method);
return $this->submit($form, [], $serverParameters);
}
/**
* 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 an HTTP_ prefix as PHP does)
* @param string $content The raw body data
* @param bool $changeHistory Whether to update the history or not (only used internally for back(), forward(), and reload())
*
* @return Crawler
*/
public function request(string $method, string $uri, array $parameters = [], array $files = [], array $server = [], string $content = null, bool $changeHistory = true)
{
if ($this->isMainRequest) {
$this->redirectCount = 0;
} else {
++$this->redirectCount;
}
$originalUri = $uri;
$uri = $this->getAbsoluteUri($uri);
$server = array_merge($this->server, $server);
if (!empty($server['HTTP_HOST']) && null === parse_url($originalUri, \PHP_URL_HOST)) {
$uri = preg_replace('{^(https?\://)'.preg_quote($this->extractHost($uri)).'}', '${1}'.$server['HTTP_HOST'], $uri);
}
if (isset($server['HTTPS']) && null === parse_url($originalUri, \PHP_URL_SCHEME)) {
$uri = preg_replace('{^'.parse_url($uri, \PHP_URL_SCHEME).'}', $server['HTTPS'] ? 'https' : 'http', $uri);
}
if (!isset($server['HTTP_REFERER']) && !$this->history->isEmpty()) {
$server['HTTP_REFERER'] = $this->history->current()->getUri();
}
if (empty($server['HTTP_HOST'])) {
$server['HTTP_HOST'] = $this->extractHost($uri);
}
$server['HTTPS'] = 'https' == parse_url($uri, \PHP_URL_SCHEME);
$this->internalRequest = new Request($uri, $method, $parameters, $files, $this->cookieJar->allValues($uri), $server, $content);
$this->request = $this->filterRequest($this->internalRequest);
if (true === $changeHistory) {
$this->history->add($this->internalRequest);
}
if ($this->insulated) {
$this->response = $this->doRequestInProcess($this->request);
} else {
$this->response = $this->doRequest($this->request);
}
$this->internalResponse = $this->filterResponse($this->response);
$this->cookieJar->updateFromResponse($this->internalResponse, $uri);
$status = $this->internalResponse->getStatusCode();
if ($status >= 300 && $status < 400) {
$this->redirect = $this->internalResponse->getHeader('Location');
} else {
$this->redirect = null;
}
if ($this->followRedirects && $this->redirect) {
$this->redirects[serialize($this->history->current())] = true;
return $this->crawler = $this->followRedirect();
}
$this->crawler = $this->createCrawlerFromContent($this->internalRequest->getUri(), $this->internalResponse->getContent(), $this->internalResponse->getHeader('Content-Type'));
// Check for meta refresh redirect
if ($this->followMetaRefresh && null !== $redirect = $this->getMetaRefreshUrl()) {
$this->redirect = $redirect;
$this->redirects[serialize($this->history->current())] = true;
$this->crawler = $this->followRedirect();
}
return $this->crawler;
}
/**
* Makes a request in another process.
*
* @param object $request An origin request instance
*
* @return object An origin response instance
*
* @throws \RuntimeException When processing returns exit code
*/
protected function doRequestInProcess($request)
{
$deprecationsFile = tempnam(sys_get_temp_dir(), 'deprec');
putenv('SYMFONY_DEPRECATIONS_SERIALIZE='.$deprecationsFile);
$_ENV['SYMFONY_DEPRECATIONS_SERIALIZE'] = $deprecationsFile;
$process = new PhpProcess($this->getScript($request), null, null);
$process->run();
if (file_exists($deprecationsFile)) {
$deprecations = file_get_contents($deprecationsFile);
unlink($deprecationsFile);
foreach ($deprecations ? unserialize($deprecations) : [] as $deprecation) {
if ($deprecation[0]) {
// unsilenced on purpose
trigger_error($deprecation[1], \E_USER_DEPRECATED);
} else {
@trigger_error($deprecation[1], \E_USER_DEPRECATED);
}
}
}
if (!$process->isSuccessful() || !preg_match('/^O\:\d+\:/', $process->getOutput())) {
throw new \RuntimeException(sprintf('OUTPUT: %s ERROR OUTPUT: %s.', $process->getOutput(), $process->getErrorOutput()));
}
return unserialize($process->getOutput());
}
/**
* Makes a request.
*
* @param object $request An origin request instance
*
* @return object An origin response instance
*/
abstract protected function doRequest($request);
/**
* Returns the script to execute when the request must be insulated.
*
* @param object $request An origin request instance
*
* @throws \LogicException When this abstract class is not implemented
*/
protected function getScript($request)
{
throw new \LogicException('To insulate requests, you need to override the getScript() method.');
}
/**
* Filters the BrowserKit request to the origin one.
*
* @return object An origin request instance
*/
protected function filterRequest(Request $request)
{
return $request;
}
/**
* Filters the origin response to the BrowserKit one.
*
* @param object $response The origin response to filter
*
* @return Response An BrowserKit Response instance
*/
protected function filterResponse($response)
{
return $response;
}
/**
* Creates a crawler.
*
* This method returns null if the DomCrawler component is not available.
*
* @param string $uri A URI
* @param string $content Content for the crawler to use
* @param string $type Content type
*
* @return Crawler|null
*/
protected function createCrawlerFromContent($uri, $content, $type)
{
if (!class_exists(Crawler::class)) {
return null;
}
$crawler = new Crawler(null, $uri);
$crawler->addContent($content, $type);
return $crawler;
}
/**
* Goes back in the browser history.
*
* @return Crawler
*/
public function back()
{
do {
$request = $this->history->back();
} while (\array_key_exists(serialize($request), $this->redirects));
return $this->requestFromRequest($request, false);
}
/**
* Goes forward in the browser history.
*
* @return Crawler
*/
public function forward()
{
do {
$request = $this->history->forward();
} while (\array_key_exists(serialize($request), $this->redirects));
return $this->requestFromRequest($request, false);
}
/**
* Reloads the current browser.
*
* @return Crawler
*/
public function reload()
{
return $this->requestFromRequest($this->history->current(), false);
}
/**
* Follow redirects?
*
* @return Crawler
*
* @throws \LogicException If request was not a redirect
*/
public function followRedirect()
{
if (empty($this->redirect)) {
throw new \LogicException('The request was not redirected.');
}
if (-1 !== $this->maxRedirects) {
if ($this->redirectCount > $this->maxRedirects) {
$this->redirectCount = 0;
throw new \LogicException(sprintf('The maximum number (%d) of redirections was reached.', $this->maxRedirects));
}
}
$request = $this->internalRequest;
if (\in_array($this->internalResponse->getStatusCode(), [301, 302, 303])) {
$method = 'GET';
$files = [];
$content = null;
} else {
$method = $request->getMethod();
$files = $request->getFiles();
$content = $request->getContent();
}
if ('GET' === strtoupper($method)) {
// Don't forward parameters for GET request as it should reach the redirection URI
$parameters = [];
} else {
$parameters = $request->getParameters();
}
$server = $request->getServer();
$server = $this->updateServerFromUri($server, $this->redirect);
$this->isMainRequest = false;
$response = $this->request($method, $this->redirect, $parameters, $files, $server, $content);
$this->isMainRequest = true;
return $response;
}
/**
* @see https://dev.w3.org/html5/spec-preview/the-meta-element.html#attr-meta-http-equiv-refresh
*/
private function getMetaRefreshUrl(): ?string
{
$metaRefresh = $this->getCrawler()->filter('head meta[http-equiv="refresh"]');
foreach ($metaRefresh->extract(['content']) as $content) {
if (preg_match('/^\s*0\s*;\s*URL\s*=\s*(?|\'([^\']++)|"([^"]++)|([^\'"].*))/i', $content, $m)) {
return str_replace("\t\r\n", '', rtrim($m[1]));
}
}
return null;
}
/**
* Restarts the client.
*
* It flushes history and all cookies.
*/
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 (str_starts_with($uri, 'http://') || str_starts_with($uri, 'https://')) {
return $uri;
}
if (!$this->history->isEmpty()) {
$currentUri = $this->history->current()->getUri();
} else {
$currentUri = sprintf('http%s://%s/',
isset($this->server['HTTPS']) ? 's' : '',
$this->server['HTTP_HOST'] ?? 'localhost'
);
}
// protocol relative URL
if ('' !== trim($uri, '/') && str_starts_with($uri, '//')) {
return parse_url($currentUri, \PHP_URL_SCHEME).':'.$uri;
}
// anchor or query string parameters?
if (!$uri || '#' == $uri[0] || '?' == $uri[0]) {
return preg_replace('/[#?].*?$/', '', $currentUri).$uri;
}
if ('/' !== $uri[0]) {
$path = parse_url($currentUri, \PHP_URL_PATH);
if (!str_ends_with($path, '/')) {
$path = substr($path, 0, strrpos($path, '/') + 1);
}
$uri = $path.$uri;
}
return preg_replace('#^(.*?//[^/]+)\/.*$#', '$1', $currentUri).$uri;
}
/**
* Makes a request from a Request object directly.
*
* @param bool $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(), $request->getFiles(), $request->getServer(), $request->getContent(), $changeHistory);
}
private function updateServerFromUri(array $server, string $uri): array
{
$server['HTTP_HOST'] = $this->extractHost($uri);
$scheme = parse_url($uri, \PHP_URL_SCHEME);
$server['HTTPS'] = null === $scheme ? $server['HTTPS'] : 'https' == $scheme;
unset($server['HTTP_IF_NONE_MATCH'], $server['HTTP_IF_MODIFIED_SINCE']);
return $server;
}
private function extractHost(string $uri): ?string
{
$host = parse_url($uri, \PHP_URL_HOST);
if ($port = parse_url($uri, \PHP_URL_PORT)) {
return $host.':'.$port;
}
return $host;
}
}