--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/HttpFoundation/Request.php Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,1219 @@
+<?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\HttpFoundation;
+
+use Symfony\Component\HttpFoundation\SessionStorage\NativeSessionStorage;
+
+/**
+ * Request represents an HTTP request.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @api
+ */
+class Request
+{
+ static protected $trustProxy = false;
+
+ /**
+ * @var \Symfony\Component\HttpFoundation\ParameterBag
+ *
+ * @api
+ */
+ public $attributes;
+
+ /**
+ * @var \Symfony\Component\HttpFoundation\ParameterBag
+ *
+ * @api
+ */
+ public $request;
+
+ /**
+ * @var \Symfony\Component\HttpFoundation\ParameterBag
+ *
+ * @api
+ */
+ public $query;
+
+ /**
+ * @var \Symfony\Component\HttpFoundation\ParameterBag
+ *
+ * @api
+ */
+ public $server;
+
+ /**
+ * @var \Symfony\Component\HttpFoundation\ParameterBag
+ *
+ * @api
+ */
+ public $files;
+
+ /**
+ * @var \Symfony\Component\HttpFoundation\ParameterBag
+ *
+ * @api
+ */
+ public $cookies;
+
+ /**
+ * @var \Symfony\Component\HttpFoundation\HeaderBag
+ *
+ * @api
+ */
+ public $headers;
+
+ protected $content;
+ protected $languages;
+ protected $charsets;
+ protected $acceptableContentTypes;
+ protected $pathInfo;
+ protected $requestUri;
+ protected $baseUrl;
+ protected $basePath;
+ protected $method;
+ protected $format;
+ protected $session;
+
+ static protected $formats;
+
+ /**
+ * Constructor.
+ *
+ * @param array $query The GET parameters
+ * @param array $request The POST parameters
+ * @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
+ * @param array $cookies The COOKIE parameters
+ * @param array $files The FILES parameters
+ * @param array $server The SERVER parameters
+ * @param string $content The raw body data
+ *
+ * @api
+ */
+ public function __construct(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $content = null)
+ {
+ $this->initialize($query, $request, $attributes, $cookies, $files, $server, $content);
+ }
+
+ /**
+ * Sets the parameters for this request.
+ *
+ * This method also re-initializes all properties.
+ *
+ * @param array $query The GET parameters
+ * @param array $request The POST parameters
+ * @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
+ * @param array $cookies The COOKIE parameters
+ * @param array $files The FILES parameters
+ * @param array $server The SERVER parameters
+ * @param string $content The raw body data
+ *
+ * @api
+ */
+ public function initialize(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $content = null)
+ {
+ $this->request = new ParameterBag($request);
+ $this->query = new ParameterBag($query);
+ $this->attributes = new ParameterBag($attributes);
+ $this->cookies = new ParameterBag($cookies);
+ $this->files = new FileBag($files);
+ $this->server = new ServerBag($server);
+ $this->headers = new HeaderBag($this->server->getHeaders());
+
+ $this->content = $content;
+ $this->languages = null;
+ $this->charsets = null;
+ $this->acceptableContentTypes = null;
+ $this->pathInfo = null;
+ $this->requestUri = null;
+ $this->baseUrl = null;
+ $this->basePath = null;
+ $this->method = null;
+ $this->format = null;
+ }
+
+ /**
+ * Creates a new request with values from PHP's super globals.
+ *
+ * @return Request A new request
+ *
+ * @api
+ */
+ static public function createFromGlobals()
+ {
+ $request = new static($_GET, $_POST, array(), $_COOKIE, $_FILES, $_SERVER);
+
+ if (0 === strpos($request->server->get('CONTENT_TYPE'), 'application/x-www-form-urlencoded')
+ && in_array(strtoupper($request->server->get('REQUEST_METHOD', 'GET')), array('PUT', 'DELETE'))
+ ) {
+ parse_str($request->getContent(), $data);
+ $request->request = new ParameterBag($data);
+ }
+
+ return $request;
+ }
+
+ /**
+ * Creates a Request based on a given URI and configuration.
+ *
+ * @param string $uri The URI
+ * @param string $method The HTTP method
+ * @param array $parameters The request (GET) or query (POST) parameters
+ * @param array $cookies The request cookies ($_COOKIE)
+ * @param array $files The request files ($_FILES)
+ * @param array $server The server parameters ($_SERVER)
+ * @param string $content The raw body data
+ *
+ * @return Request A Request instance
+ *
+ * @api
+ */
+ static public function create($uri, $method = 'GET', $parameters = array(), $cookies = array(), $files = array(), $server = array(), $content = null)
+ {
+ $defaults = array(
+ 'SERVER_NAME' => 'localhost',
+ 'SERVER_PORT' => 80,
+ 'HTTP_HOST' => 'localhost',
+ 'HTTP_USER_AGENT' => 'Symfony/2.X',
+ 'HTTP_ACCEPT' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
+ 'HTTP_ACCEPT_LANGUAGE' => 'en-us,en;q=0.5',
+ 'HTTP_ACCEPT_CHARSET' => 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
+ 'REMOTE_ADDR' => '127.0.0.1',
+ 'SCRIPT_NAME' => '',
+ 'SCRIPT_FILENAME' => '',
+ 'SERVER_PROTOCOL' => 'HTTP/1.1',
+ 'REQUEST_TIME' => time(),
+ );
+
+ $components = parse_url($uri);
+ if (isset($components['host'])) {
+ $defaults['SERVER_NAME'] = $components['host'];
+ $defaults['HTTP_HOST'] = $components['host'];
+ }
+
+ if (isset($components['scheme'])) {
+ if ('https' === $components['scheme']) {
+ $defaults['HTTPS'] = 'on';
+ $defaults['SERVER_PORT'] = 443;
+ }
+ }
+
+ if (isset($components['port'])) {
+ $defaults['SERVER_PORT'] = $components['port'];
+ $defaults['HTTP_HOST'] = $defaults['HTTP_HOST'].':'.$components['port'];
+ }
+
+ if (!isset($components['path'])) {
+ $components['path'] = '';
+ }
+
+ if (in_array(strtoupper($method), array('POST', 'PUT', 'DELETE'))) {
+ $request = $parameters;
+ $query = array();
+ $defaults['CONTENT_TYPE'] = 'application/x-www-form-urlencoded';
+ } else {
+ $request = array();
+ $query = $parameters;
+ if (false !== $pos = strpos($uri, '?')) {
+ $qs = substr($uri, $pos + 1);
+ parse_str($qs, $params);
+
+ $query = array_merge($params, $query);
+ }
+ }
+
+ $queryString = isset($components['query']) ? html_entity_decode($components['query']) : '';
+ parse_str($queryString, $qs);
+ if (is_array($qs)) {
+ $query = array_replace($qs, $query);
+ }
+
+ $uri = $components['path'].($queryString ? '?'.$queryString : '');
+
+ $server = array_replace($defaults, $server, array(
+ 'REQUEST_METHOD' => strtoupper($method),
+ 'PATH_INFO' => '',
+ 'REQUEST_URI' => $uri,
+ 'QUERY_STRING' => $queryString,
+ ));
+
+ return new static($query, $request, array(), $cookies, $files, $server, $content);
+ }
+
+ /**
+ * Clones a request and overrides some of its parameters.
+ *
+ * @param array $query The GET parameters
+ * @param array $request The POST parameters
+ * @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...)
+ * @param array $cookies The COOKIE parameters
+ * @param array $files The FILES parameters
+ * @param array $server The SERVER parameters
+ *
+ * @api
+ */
+ public function duplicate(array $query = null, array $request = null, array $attributes = null, array $cookies = null, array $files = null, array $server = null)
+ {
+ $dup = clone $this;
+ if ($query !== null) {
+ $dup->query = new ParameterBag($query);
+ }
+ if ($request !== null) {
+ $dup->request = new ParameterBag($request);
+ }
+ if ($attributes !== null) {
+ $dup->attributes = new ParameterBag($attributes);
+ }
+ if ($cookies !== null) {
+ $dup->cookies = new ParameterBag($cookies);
+ }
+ if ($files !== null) {
+ $dup->files = new FileBag($files);
+ }
+ if ($server !== null) {
+ $dup->server = new ServerBag($server);
+ $dup->headers = new HeaderBag($dup->server->getHeaders());
+ }
+ $this->languages = null;
+ $this->charsets = null;
+ $this->acceptableContentTypes = null;
+ $this->pathInfo = null;
+ $this->requestUri = null;
+ $this->baseUrl = null;
+ $this->basePath = null;
+ $this->method = null;
+ $this->format = null;
+
+ return $dup;
+ }
+
+ /**
+ * Clones the current request.
+ *
+ * Note that the session is not cloned as duplicated requests
+ * are most of the time sub-requests of the main one.
+ */
+ public function __clone()
+ {
+ $this->query = clone $this->query;
+ $this->request = clone $this->request;
+ $this->attributes = clone $this->attributes;
+ $this->cookies = clone $this->cookies;
+ $this->files = clone $this->files;
+ $this->server = clone $this->server;
+ $this->headers = clone $this->headers;
+ }
+
+ /**
+ * Returns the request as a string.
+ *
+ * @return string The request
+ */
+ public function __toString()
+ {
+ return
+ sprintf('%s %s %s', $this->getMethod(), $this->getRequestUri(), $this->server->get('SERVER_PROTOCOL'))."\r\n".
+ $this->headers."\r\n".
+ $this->getContent();
+ }
+
+ /**
+ * Overrides the PHP global variables according to this request instance.
+ *
+ * It overrides $_GET, $_POST, $_REQUEST, $_SERVER, $_COOKIE, and $_FILES.
+ *
+ * @api
+ */
+ public function overrideGlobals()
+ {
+ $_GET = $this->query->all();
+ $_POST = $this->request->all();
+ $_SERVER = $this->server->all();
+ $_COOKIE = $this->cookies->all();
+ // FIXME: populate $_FILES
+
+ foreach ($this->headers->all() as $key => $value) {
+ $key = strtoupper(str_replace('-', '_', $key));
+ if (in_array($key, array('CONTENT_TYPE', 'CONTENT_LENGTH'))) {
+ $_SERVER[$key] = implode(', ', $value);
+ } else {
+ $_SERVER['HTTP_'.$key] = implode(', ', $value);
+ }
+ }
+
+ // FIXME: should read variables_order and request_order
+ // to know which globals to merge and in which order
+ $_REQUEST = array_merge($_GET, $_POST);
+ }
+
+ /**
+ * Trusts $_SERVER entries coming from proxies.
+ *
+ * You should only call this method if your application
+ * is hosted behind a reverse proxy that you manage.
+ *
+ * @api
+ */
+ static public function trustProxyData()
+ {
+ self::$trustProxy = true;
+ }
+
+ /**
+ * Gets a "parameter" value.
+ *
+ * This method is mainly useful for libraries that want to provide some flexibility.
+ *
+ * Order of precedence: GET, PATH, POST, COOKIE
+ * Avoid using this method in controllers:
+ * * slow
+ * * prefer to get from a "named" source
+ *
+ * @param string $key the key
+ * @param mixed $default the default value
+ * @param type $deep is parameter deep in multidimensional array
+ *
+ * @return mixed
+ */
+ public function get($key, $default = null, $deep = false)
+ {
+ return $this->query->get($key, $this->attributes->get($key, $this->request->get($key, $default, $deep), $deep), $deep);
+ }
+
+ /**
+ * Gets the Session.
+ *
+ * @return Session|null The session
+ *
+ * @api
+ */
+ public function getSession()
+ {
+ return $this->session;
+ }
+
+ /**
+ * Whether the request contains a Session which was started in one of the
+ * previous requests.
+ *
+ * @return boolean
+ *
+ * @api
+ */
+ public function hasPreviousSession()
+ {
+ // the check for $this->session avoids malicious users trying to fake a session cookie with proper name
+ return $this->cookies->has(session_name()) && null !== $this->session;
+ }
+
+ /**
+ * Whether the request contains a Session object.
+ *
+ * @return boolean
+ *
+ * @api
+ */
+ public function hasSession()
+ {
+ return null !== $this->session;
+ }
+
+ /**
+ * Sets the Session.
+ *
+ * @param Session $session The Session
+ *
+ * @api
+ */
+ public function setSession(Session $session)
+ {
+ $this->session = $session;
+ }
+
+ /**
+ * Returns the client IP address.
+ *
+ * @param Boolean $proxy Whether the current request has been made behind a proxy or not
+ *
+ * @return string The client IP address
+ *
+ * @api
+ */
+ public function getClientIp($proxy = false)
+ {
+ if ($proxy) {
+ if ($this->server->has('HTTP_CLIENT_IP')) {
+ return $this->server->get('HTTP_CLIENT_IP');
+ } elseif (self::$trustProxy && $this->server->has('HTTP_X_FORWARDED_FOR')) {
+ return $this->server->get('HTTP_X_FORWARDED_FOR');
+ }
+ }
+
+ return $this->server->get('REMOTE_ADDR');
+ }
+
+ /**
+ * Returns current script name.
+ *
+ * @return string
+ *
+ * @api
+ */
+ public function getScriptName()
+ {
+ return $this->server->get('SCRIPT_NAME', $this->server->get('ORIG_SCRIPT_NAME', ''));
+ }
+
+ /**
+ * Returns the path being requested relative to the executed script.
+ *
+ * The path info always starts with a /.
+ *
+ * Suppose this request is instantiated from /mysite on localhost:
+ *
+ * * http://localhost/mysite returns an empty string
+ * * http://localhost/mysite/about returns '/about'
+ * * http://localhost/mysite/about?var=1 returns '/about'
+ *
+ * @return string
+ *
+ * @api
+ */
+ public function getPathInfo()
+ {
+ if (null === $this->pathInfo) {
+ $this->pathInfo = $this->preparePathInfo();
+ }
+
+ return $this->pathInfo;
+ }
+
+ /**
+ * Returns the root path from which this request is executed.
+ *
+ * Suppose that an index.php file instantiates this request object:
+ *
+ * * http://localhost/index.php returns an empty string
+ * * http://localhost/index.php/page returns an empty string
+ * * http://localhost/web/index.php return '/web'
+ *
+ * @return string
+ *
+ * @api
+ */
+ public function getBasePath()
+ {
+ if (null === $this->basePath) {
+ $this->basePath = $this->prepareBasePath();
+ }
+
+ return $this->basePath;
+ }
+
+ /**
+ * Returns the root url from which this request is executed.
+ *
+ * The base URL never ends with a /.
+ *
+ * This is similar to getBasePath(), except that it also includes the
+ * script filename (e.g. index.php) if one exists.
+ *
+ * @return string
+ *
+ * @api
+ */
+ public function getBaseUrl()
+ {
+ if (null === $this->baseUrl) {
+ $this->baseUrl = $this->prepareBaseUrl();
+ }
+
+ return $this->baseUrl;
+ }
+
+ /**
+ * Gets the request's scheme.
+ *
+ * @return string
+ *
+ * @api
+ */
+ public function getScheme()
+ {
+ return $this->isSecure() ? 'https' : 'http';
+ }
+
+ /**
+ * Returns the port on which the request is made.
+ *
+ * @return string
+ *
+ * @api
+ */
+ public function getPort()
+ {
+ return $this->headers->get('X-Forwarded-Port') ?: $this->server->get('SERVER_PORT');
+ }
+
+ /**
+ * Returns the HTTP host being requested.
+ *
+ * The port name will be appended to the host if it's non-standard.
+ *
+ * @return string
+ *
+ * @api
+ */
+ public function getHttpHost()
+ {
+ $scheme = $this->getScheme();
+ $port = $this->getPort();
+
+ if (('http' == $scheme && $port == 80) || ('https' == $scheme && $port == 443)) {
+ return $this->getHost();
+ }
+
+ return $this->getHost().':'.$port;
+ }
+
+ /**
+ * Returns the requested URI.
+ *
+ * @return string
+ *
+ * @api
+ */
+ public function getRequestUri()
+ {
+ if (null === $this->requestUri) {
+ $this->requestUri = $this->prepareRequestUri();
+ }
+
+ return $this->requestUri;
+ }
+
+ /**
+ * Generates a normalized URI for the Request.
+ *
+ * @return string A normalized URI for the Request
+ *
+ * @see getQueryString()
+ *
+ * @api
+ */
+ public function getUri()
+ {
+ $qs = $this->getQueryString();
+ if (null !== $qs) {
+ $qs = '?'.$qs;
+ }
+
+ return $this->getScheme().'://'.$this->getHttpHost().$this->getBaseUrl().$this->getPathInfo().$qs;
+ }
+
+ /**
+ * Generates a normalized URI for the given path.
+ *
+ * @param string $path A path to use instead of the current one
+ *
+ * @return string The normalized URI for the path
+ *
+ * @api
+ */
+ public function getUriForPath($path)
+ {
+ return $this->getScheme().'://'.$this->getHttpHost().$this->getBaseUrl().$path;
+ }
+
+ /**
+ * Generates the normalized query string for the Request.
+ *
+ * It builds a normalized query string, where keys/value pairs are alphabetized
+ * and have consistent escaping.
+ *
+ * @return string A normalized query string for the Request
+ *
+ * @api
+ */
+ public function getQueryString()
+ {
+ if (!$qs = $this->server->get('QUERY_STRING')) {
+ return null;
+ }
+
+ $parts = array();
+ $order = array();
+
+ foreach (explode('&', $qs) as $segment) {
+ if (false === strpos($segment, '=')) {
+ $parts[] = $segment;
+ $order[] = $segment;
+ } else {
+ $tmp = explode('=', rawurldecode($segment), 2);
+ $parts[] = rawurlencode($tmp[0]).'='.rawurlencode($tmp[1]);
+ $order[] = $tmp[0];
+ }
+ }
+ array_multisort($order, SORT_ASC, $parts);
+
+ return implode('&', $parts);
+ }
+
+ /**
+ * Checks whether the request is secure or not.
+ *
+ * @return Boolean
+ *
+ * @api
+ */
+ public function isSecure()
+ {
+ return (
+ (strtolower($this->server->get('HTTPS')) == 'on' || $this->server->get('HTTPS') == 1)
+ ||
+ (self::$trustProxy && strtolower($this->headers->get('SSL_HTTPS')) == 'on' || $this->headers->get('SSL_HTTPS') == 1)
+ ||
+ (self::$trustProxy && strtolower($this->headers->get('X_FORWARDED_PROTO')) == 'https')
+ );
+ }
+
+ /**
+ * Returns the host name.
+ *
+ * @return string
+ *
+ * @api
+ */
+ public function getHost()
+ {
+ if (self::$trustProxy && $host = $this->headers->get('X_FORWARDED_HOST')) {
+ $elements = explode(',', $host);
+
+ $host = trim($elements[count($elements) - 1]);
+ } else {
+ if (!$host = $this->headers->get('HOST')) {
+ if (!$host = $this->server->get('SERVER_NAME')) {
+ $host = $this->server->get('SERVER_ADDR', '');
+ }
+ }
+ }
+
+ // Remove port number from host
+ $host = preg_replace('/:\d+$/', '', $host);
+
+ return trim($host);
+ }
+
+ /**
+ * Sets the request method.
+ *
+ * @param string $method
+ *
+ * @api
+ */
+ public function setMethod($method)
+ {
+ $this->method = null;
+ $this->server->set('REQUEST_METHOD', $method);
+ }
+
+ /**
+ * Gets the request method.
+ *
+ * The method is always an uppercased string.
+ *
+ * @return string The request method
+ *
+ * @api
+ */
+ public function getMethod()
+ {
+ if (null === $this->method) {
+ $this->method = strtoupper($this->server->get('REQUEST_METHOD', 'GET'));
+ if ('POST' === $this->method) {
+ $this->method = strtoupper($this->headers->get('X-HTTP-METHOD-OVERRIDE', $this->request->get('_method', 'POST')));
+ }
+ }
+
+ return $this->method;
+ }
+
+ /**
+ * Gets the mime type associated with the format.
+ *
+ * @param string $format The format
+ *
+ * @return string The associated mime type (null if not found)
+ *
+ * @api
+ */
+ public function getMimeType($format)
+ {
+ if (null === static::$formats) {
+ static::initializeFormats();
+ }
+
+ return isset(static::$formats[$format]) ? static::$formats[$format][0] : null;
+ }
+
+ /**
+ * Gets the format associated with the mime type.
+ *
+ * @param string $mimeType The associated mime type
+ *
+ * @return string The format (null if not found)
+ *
+ * @api
+ */
+ public function getFormat($mimeType)
+ {
+ if (false !== $pos = strpos($mimeType, ';')) {
+ $mimeType = substr($mimeType, 0, $pos);
+ }
+
+ if (null === static::$formats) {
+ static::initializeFormats();
+ }
+
+ foreach (static::$formats as $format => $mimeTypes) {
+ if (in_array($mimeType, (array) $mimeTypes)) {
+ return $format;
+ }
+ }
+
+ return null;
+ }
+
+ /**
+ * Associates a format with mime types.
+ *
+ * @param string $format The format
+ * @param string|array $mimeTypes The associated mime types (the preferred one must be the first as it will be used as the content type)
+ *
+ * @api
+ */
+ public function setFormat($format, $mimeTypes)
+ {
+ if (null === static::$formats) {
+ static::initializeFormats();
+ }
+
+ static::$formats[$format] = is_array($mimeTypes) ? $mimeTypes : array($mimeTypes);
+ }
+
+ /**
+ * Gets the request format.
+ *
+ * Here is the process to determine the format:
+ *
+ * * format defined by the user (with setRequestFormat())
+ * * _format request parameter
+ * * $default
+ *
+ * @param string $default The default format
+ *
+ * @return string The request format
+ *
+ * @api
+ */
+ public function getRequestFormat($default = 'html')
+ {
+ if (null === $this->format) {
+ $this->format = $this->get('_format', $default);
+ }
+
+ return $this->format;
+ }
+
+ /**
+ * Sets the request format.
+ *
+ * @param string $format The request format.
+ *
+ * @api
+ */
+ public function setRequestFormat($format)
+ {
+ $this->format = $format;
+ }
+
+ /**
+ * Checks whether the method is safe or not.
+ *
+ * @return Boolean
+ *
+ * @api
+ */
+ public function isMethodSafe()
+ {
+ return in_array($this->getMethod(), array('GET', 'HEAD'));
+ }
+
+ /**
+ * Returns the request body content.
+ *
+ * @param Boolean $asResource If true, a resource will be returned
+ *
+ * @return string|resource The request body content or a resource to read the body stream.
+ */
+ public function getContent($asResource = false)
+ {
+ if (false === $this->content || (true === $asResource && null !== $this->content)) {
+ throw new \LogicException('getContent() can only be called once when using the resource return type.');
+ }
+
+ if (true === $asResource) {
+ $this->content = false;
+
+ return fopen('php://input', 'rb');
+ }
+
+ if (null === $this->content) {
+ $this->content = file_get_contents('php://input');
+ }
+
+ return $this->content;
+ }
+
+ /**
+ * Gets the Etags.
+ *
+ * @return array The entity tags
+ */
+ public function getETags()
+ {
+ return preg_split('/\s*,\s*/', $this->headers->get('if_none_match'), null, PREG_SPLIT_NO_EMPTY);
+ }
+
+ public function isNoCache()
+ {
+ return $this->headers->hasCacheControlDirective('no-cache') || 'no-cache' == $this->headers->get('Pragma');
+ }
+
+ /**
+ * Returns the preferred language.
+ *
+ * @param array $locales An array of ordered available locales
+ *
+ * @return string The preferred locale
+ *
+ * @api
+ */
+ public function getPreferredLanguage(array $locales = null)
+ {
+ $preferredLanguages = $this->getLanguages();
+
+ if (null === $locales) {
+ return isset($preferredLanguages[0]) ? $preferredLanguages[0] : null;
+ }
+
+ if (!$preferredLanguages) {
+ return $locales[0];
+ }
+
+ $preferredLanguages = array_values(array_intersect($preferredLanguages, $locales));
+
+ return isset($preferredLanguages[0]) ? $preferredLanguages[0] : $locales[0];
+ }
+
+ /**
+ * Gets a list of languages acceptable by the client browser.
+ *
+ * @return array Languages ordered in the user browser preferences
+ *
+ * @api
+ */
+ public function getLanguages()
+ {
+ if (null !== $this->languages) {
+ return $this->languages;
+ }
+
+ $languages = $this->splitHttpAcceptHeader($this->headers->get('Accept-Language'));
+ $this->languages = array();
+ foreach ($languages as $lang => $q) {
+ if (strstr($lang, '-')) {
+ $codes = explode('-', $lang);
+ if ($codes[0] == 'i') {
+ // Language not listed in ISO 639 that are not variants
+ // of any listed language, which can be registered with the
+ // i-prefix, such as i-cherokee
+ if (count($codes) > 1) {
+ $lang = $codes[1];
+ }
+ } else {
+ for ($i = 0, $max = count($codes); $i < $max; $i++) {
+ if ($i == 0) {
+ $lang = strtolower($codes[0]);
+ } else {
+ $lang .= '_'.strtoupper($codes[$i]);
+ }
+ }
+ }
+ }
+
+ $this->languages[] = $lang;
+ }
+
+ return $this->languages;
+ }
+
+ /**
+ * Gets a list of charsets acceptable by the client browser.
+ *
+ * @return array List of charsets in preferable order
+ *
+ * @api
+ */
+ public function getCharsets()
+ {
+ if (null !== $this->charsets) {
+ return $this->charsets;
+ }
+
+ return $this->charsets = array_keys($this->splitHttpAcceptHeader($this->headers->get('Accept-Charset')));
+ }
+
+ /**
+ * Gets a list of content types acceptable by the client browser
+ *
+ * @return array List of content types in preferable order
+ *
+ * @api
+ */
+ public function getAcceptableContentTypes()
+ {
+ if (null !== $this->acceptableContentTypes) {
+ return $this->acceptableContentTypes;
+ }
+
+ return $this->acceptableContentTypes = array_keys($this->splitHttpAcceptHeader($this->headers->get('Accept')));
+ }
+
+ /**
+ * Returns true if the request is a XMLHttpRequest.
+ *
+ * It works if your JavaScript library set an X-Requested-With HTTP header.
+ * It is known to work with Prototype, Mootools, jQuery.
+ *
+ * @return Boolean true if the request is an XMLHttpRequest, false otherwise
+ *
+ * @api
+ */
+ public function isXmlHttpRequest()
+ {
+ return 'XMLHttpRequest' == $this->headers->get('X-Requested-With');
+ }
+
+ /**
+ * Splits an Accept-* HTTP header.
+ *
+ * @param string $header Header to split
+ */
+ public function splitHttpAcceptHeader($header)
+ {
+ if (!$header) {
+ return array();
+ }
+
+ $values = array();
+ foreach (array_filter(explode(',', $header)) as $value) {
+ // Cut off any q-value that might come after a semi-colon
+ if ($pos = strpos($value, ';')) {
+ $q = (float) trim(substr($value, strpos($value, '=') + 1));
+ $value = trim(substr($value, 0, $pos));
+ } else {
+ $q = 1;
+ }
+
+ if (0 < $q) {
+ $values[trim($value)] = $q;
+ }
+ }
+
+ arsort($values);
+ reset($values);
+
+ return $values;
+ }
+
+ /*
+ * The following methods are derived from code of the Zend Framework (1.10dev - 2010-01-24)
+ *
+ * Code subject to the new BSD license (http://framework.zend.com/license/new-bsd).
+ *
+ * Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ */
+
+ protected function prepareRequestUri()
+ {
+ $requestUri = '';
+
+ if ($this->headers->has('X_REWRITE_URL')) {
+ // check this first so IIS will catch
+ $requestUri = $this->headers->get('X_REWRITE_URL');
+ } elseif ($this->server->get('IIS_WasUrlRewritten') == '1' && $this->server->get('UNENCODED_URL') != '') {
+ // IIS7 with URL Rewrite: make sure we get the unencoded url (double slash problem)
+ $requestUri = $this->server->get('UNENCODED_URL');
+ } elseif ($this->server->has('REQUEST_URI')) {
+ $requestUri = $this->server->get('REQUEST_URI');
+ // HTTP proxy reqs setup request uri with scheme and host [and port] + the url path, only use url path
+ $schemeAndHttpHost = $this->getScheme().'://'.$this->getHttpHost();
+ if (strpos($requestUri, $schemeAndHttpHost) === 0) {
+ $requestUri = substr($requestUri, strlen($schemeAndHttpHost));
+ }
+ } elseif ($this->server->has('ORIG_PATH_INFO')) {
+ // IIS 5.0, PHP as CGI
+ $requestUri = $this->server->get('ORIG_PATH_INFO');
+ if ($this->server->get('QUERY_STRING')) {
+ $requestUri .= '?'.$this->server->get('QUERY_STRING');
+ }
+ }
+
+ return $requestUri;
+ }
+
+ protected function prepareBaseUrl()
+ {
+ $filename = basename($this->server->get('SCRIPT_FILENAME'));
+
+ if (basename($this->server->get('SCRIPT_NAME')) === $filename) {
+ $baseUrl = $this->server->get('SCRIPT_NAME');
+ } elseif (basename($this->server->get('PHP_SELF')) === $filename) {
+ $baseUrl = $this->server->get('PHP_SELF');
+ } elseif (basename($this->server->get('ORIG_SCRIPT_NAME')) === $filename) {
+ $baseUrl = $this->server->get('ORIG_SCRIPT_NAME'); // 1and1 shared hosting compatibility
+ } else {
+ // Backtrack up the script_filename to find the portion matching
+ // php_self
+ $path = $this->server->get('PHP_SELF', '');
+ $file = $this->server->get('SCRIPT_FILENAME', '');
+ $segs = explode('/', trim($file, '/'));
+ $segs = array_reverse($segs);
+ $index = 0;
+ $last = count($segs);
+ $baseUrl = '';
+ do {
+ $seg = $segs[$index];
+ $baseUrl = '/'.$seg.$baseUrl;
+ ++$index;
+ } while (($last > $index) && (false !== ($pos = strpos($path, $baseUrl))) && (0 != $pos));
+ }
+
+ // Does the baseUrl have anything in common with the request_uri?
+ $requestUri = $this->getRequestUri();
+
+ if ($baseUrl && 0 === strpos($requestUri, $baseUrl)) {
+ // full $baseUrl matches
+ return $baseUrl;
+ }
+
+ if ($baseUrl && 0 === strpos($requestUri, dirname($baseUrl))) {
+ // directory portion of $baseUrl matches
+ return rtrim(dirname($baseUrl), '/');
+ }
+
+ $truncatedRequestUri = $requestUri;
+ if (($pos = strpos($requestUri, '?')) !== false) {
+ $truncatedRequestUri = substr($requestUri, 0, $pos);
+ }
+
+ $basename = basename($baseUrl);
+ if (empty($basename) || !strpos($truncatedRequestUri, $basename)) {
+ // no match whatsoever; set it blank
+ return '';
+ }
+
+ // If using mod_rewrite or ISAPI_Rewrite strip the script filename
+ // out of baseUrl. $pos !== 0 makes sure it is not matching a value
+ // from PATH_INFO or QUERY_STRING
+ if ((strlen($requestUri) >= strlen($baseUrl)) && ((false !== ($pos = strpos($requestUri, $baseUrl))) && ($pos !== 0))) {
+ $baseUrl = substr($requestUri, 0, $pos + strlen($baseUrl));
+ }
+
+ return rtrim($baseUrl, '/');
+ }
+
+ /**
+ * Prepares base path.
+ *
+ * @return string base path
+ */
+ protected function prepareBasePath()
+ {
+ $filename = basename($this->server->get('SCRIPT_FILENAME'));
+ $baseUrl = $this->getBaseUrl();
+ if (empty($baseUrl)) {
+ return '';
+ }
+
+ if (basename($baseUrl) === $filename) {
+ $basePath = dirname($baseUrl);
+ } else {
+ $basePath = $baseUrl;
+ }
+
+ if ('\\' === DIRECTORY_SEPARATOR) {
+ $basePath = str_replace('\\', '/', $basePath);
+ }
+
+ return rtrim($basePath, '/');
+ }
+
+ /**
+ * Prepares path info.
+ *
+ * @return string path info
+ */
+ protected function preparePathInfo()
+ {
+ $baseUrl = $this->getBaseUrl();
+
+ if (null === ($requestUri = $this->getRequestUri())) {
+ return '/';
+ }
+
+ $pathInfo = '/';
+
+ // Remove the query string from REQUEST_URI
+ if ($pos = strpos($requestUri, '?')) {
+ $requestUri = substr($requestUri, 0, $pos);
+ }
+
+ if ((null !== $baseUrl) && (false === ($pathInfo = substr($requestUri, strlen($baseUrl))))) {
+ // If substr() returns false then PATH_INFO is set to an empty string
+ return '/';
+ } elseif (null === $baseUrl) {
+ return $requestUri;
+ }
+
+ return (string) $pathInfo;
+ }
+
+ /**
+ * Initializes HTTP request formats.
+ */
+ static protected function initializeFormats()
+ {
+ static::$formats = array(
+ 'html' => array('text/html', 'application/xhtml+xml'),
+ 'txt' => array('text/plain'),
+ 'js' => array('application/javascript', 'application/x-javascript', 'text/javascript'),
+ 'css' => array('text/css'),
+ 'json' => array('application/json', 'application/x-json'),
+ 'xml' => array('text/xml', 'application/xml', 'application/x-xml'),
+ 'rdf' => array('application/rdf+xml'),
+ 'atom' => array('application/atom+xml'),
+ );
+ }
+}