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1700 lines
62 KiB
1700 lines
62 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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|
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namespace yii\web; |
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|
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use Yii; |
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use yii\base\InvalidConfigException; |
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use yii\validators\IpValidator; |
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|
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/** |
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* The web Request class represents an HTTP request. |
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* |
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* It encapsulates the $_SERVER variable and resolves its inconsistency among different Web servers. |
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* Also it provides an interface to retrieve request parameters from $_POST, $_GET, $_COOKIES and REST |
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* parameters sent via other HTTP methods like PUT or DELETE. |
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* |
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* Request is configured as an application component in [[\yii\web\Application]] by default. |
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* You can access that instance via `Yii::$app->request`. |
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* |
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* For more details and usage information on Request, see the [guide article on requests](guide:runtime-requests). |
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* |
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* @property string $absoluteUrl The currently requested absolute URL. This property is read-only. |
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* @property array $acceptableContentTypes The content types ordered by the quality score. Types with the |
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* highest scores will be returned first. The array keys are the content types, while the array values are the |
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* corresponding quality score and other parameters as given in the header. |
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* @property array $acceptableLanguages The languages ordered by the preference level. The first element |
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* represents the most preferred language. |
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* @property array $authCredentials That contains exactly two elements: - 0: the username sent via HTTP |
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* authentication, `null` if the username is not given - 1: the password sent via HTTP authentication, `null` if |
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* the password is not given. This property is read-only. |
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* @property string|null $authPassword The password sent via HTTP authentication, `null` if the password is |
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* not given. This property is read-only. |
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* @property string|null $authUser The username sent via HTTP authentication, `null` if the username is not |
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* given. This property is read-only. |
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* @property string $baseUrl The relative URL for the application. |
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* @property array $bodyParams The request parameters given in the request body. |
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* @property string $contentType Request content-type. Null is returned if this information is not available. |
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* This property is read-only. |
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* @property CookieCollection $cookies The cookie collection. This property is read-only. |
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* @property string $csrfToken The token used to perform CSRF validation. This property is read-only. |
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* @property string $csrfTokenFromHeader The CSRF token sent via [[CSRF_HEADER]] by browser. Null is returned |
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* if no such header is sent. This property is read-only. |
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* @property array $eTags The entity tags. This property is read-only. |
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* @property HeaderCollection $headers The header collection. This property is read-only. |
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* @property string|null $hostInfo Schema and hostname part (with port number if needed) of the request URL |
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* (e.g. `http://www.yiiframework.com`), null if can't be obtained from `$_SERVER` and wasn't set. See |
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* [[getHostInfo()]] for security related notes on this property. |
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* @property string|null $hostName Hostname part of the request URL (e.g. `www.yiiframework.com`). This |
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* property is read-only. |
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* @property bool $isAjax Whether this is an AJAX (XMLHttpRequest) request. This property is read-only. |
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* @property bool $isDelete Whether this is a DELETE request. This property is read-only. |
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* @property bool $isFlash Whether this is an Adobe Flash or Adobe Flex request. This property is read-only. |
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* @property bool $isGet Whether this is a GET request. This property is read-only. |
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* @property bool $isHead Whether this is a HEAD request. This property is read-only. |
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* @property bool $isOptions Whether this is a OPTIONS request. This property is read-only. |
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* @property bool $isPatch Whether this is a PATCH request. This property is read-only. |
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* @property bool $isPjax Whether this is a PJAX request. This property is read-only. |
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* @property bool $isPost Whether this is a POST request. This property is read-only. |
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* @property bool $isPut Whether this is a PUT request. This property is read-only. |
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* @property bool $isSecureConnection If the request is sent via secure channel (https). This property is |
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* read-only. |
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* @property string $method Request method, such as GET, POST, HEAD, PUT, PATCH, DELETE. The value returned is |
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* turned into upper case. This property is read-only. |
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* @property string|null $origin URL origin of a CORS request, `null` if not available. This property is |
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* read-only. |
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* @property string $pathInfo Part of the request URL that is after the entry script and before the question |
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* mark. Note, the returned path info is already URL-decoded. |
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* @property int $port Port number for insecure requests. |
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* @property array $queryParams The request GET parameter values. |
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* @property string $queryString Part of the request URL that is after the question mark. This property is |
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* read-only. |
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* @property string $rawBody The request body. |
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* @property string|null $referrer URL referrer, null if not available. This property is read-only. |
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* @property string|null $remoteHost Remote host name, `null` if not available. This property is read-only. |
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* @property string|null $remoteIP Remote IP address, `null` if not available. This property is read-only. |
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* @property string $scriptFile The entry script file path. |
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* @property string $scriptUrl The relative URL of the entry script. |
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* @property int $securePort Port number for secure requests. |
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* @property string $serverName Server name, null if not available. This property is read-only. |
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* @property int|null $serverPort Server port number, null if not available. This property is read-only. |
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* @property string $url The currently requested relative URL. Note that the URI returned may be URL-encoded |
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* depending on the client. |
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* @property string|null $userAgent User agent, null if not available. This property is read-only. |
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* @property string|null $userHost User host name, null if not available. This property is read-only. |
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* @property string|null $userIP User IP address, null if not available. This property is read-only. |
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* |
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* @author Qiang Xue <qiang.xue@gmail.com> |
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* @since 2.0 |
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* @SuppressWarnings(PHPMD.SuperGlobals) |
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*/ |
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class Request extends \yii\base\Request |
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{ |
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/** |
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* The name of the HTTP header for sending CSRF token. |
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*/ |
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const CSRF_HEADER = 'X-CSRF-Token'; |
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/** |
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* The length of the CSRF token mask. |
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* @deprecated 2.0.12 The mask length is now equal to the token length. |
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*/ |
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const CSRF_MASK_LENGTH = 8; |
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|
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/** |
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* @var bool whether to enable CSRF (Cross-Site Request Forgery) validation. Defaults to true. |
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* When CSRF validation is enabled, forms submitted to an Yii Web application must be originated |
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* from the same application. If not, a 400 HTTP exception will be raised. |
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* |
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* Note, this feature requires that the user client accepts cookie. Also, to use this feature, |
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* forms submitted via POST method must contain a hidden input whose name is specified by [[csrfParam]]. |
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* You may use [[\yii\helpers\Html::beginForm()]] to generate his hidden input. |
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* |
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* In JavaScript, you may get the values of [[csrfParam]] and [[csrfToken]] via `yii.getCsrfParam()` and |
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* `yii.getCsrfToken()`, respectively. The [[\yii\web\YiiAsset]] asset must be registered. |
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* You also need to include CSRF meta tags in your pages by using [[\yii\helpers\Html::csrfMetaTags()]]. |
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* |
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* @see Controller::enableCsrfValidation |
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* @see http://en.wikipedia.org/wiki/Cross-site_request_forgery |
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*/ |
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public $enableCsrfValidation = true; |
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/** |
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* @var string the name of the token used to prevent CSRF. Defaults to '_csrf'. |
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* This property is used only when [[enableCsrfValidation]] is true. |
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*/ |
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public $csrfParam = '_csrf'; |
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/** |
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* @var array the configuration for creating the CSRF [[Cookie|cookie]]. This property is used only when |
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* both [[enableCsrfValidation]] and [[enableCsrfCookie]] are true. |
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*/ |
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public $csrfCookie = ['httpOnly' => true]; |
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/** |
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* @var bool whether to use cookie to persist CSRF token. If false, CSRF token will be stored |
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* in session under the name of [[csrfParam]]. Note that while storing CSRF tokens in session increases |
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* security, it requires starting a session for every page, which will degrade your site performance. |
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*/ |
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public $enableCsrfCookie = true; |
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/** |
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* @var bool whether cookies should be validated to ensure they are not tampered. Defaults to true. |
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*/ |
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public $enableCookieValidation = true; |
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/** |
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* @var string a secret key used for cookie validation. This property must be set if [[enableCookieValidation]] is true. |
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*/ |
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public $cookieValidationKey; |
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/** |
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* @var string the name of the POST parameter that is used to indicate if a request is a PUT, PATCH or DELETE |
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* request tunneled through POST. Defaults to '_method'. |
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* @see getMethod() |
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* @see getBodyParams() |
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*/ |
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public $methodParam = '_method'; |
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/** |
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* @var array the parsers for converting the raw HTTP request body into [[bodyParams]]. |
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* The array keys are the request `Content-Types`, and the array values are the |
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* corresponding configurations for [[Yii::createObject|creating the parser objects]]. |
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* A parser must implement the [[RequestParserInterface]]. |
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* |
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* To enable parsing for JSON requests you can use the [[JsonParser]] class like in the following example: |
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* |
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* ``` |
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* [ |
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* 'application/json' => 'yii\web\JsonParser', |
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* ] |
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* ``` |
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* |
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* To register a parser for parsing all request types you can use `'*'` as the array key. |
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* This one will be used as a fallback in case no other types match. |
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* |
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* @see getBodyParams() |
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*/ |
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public $parsers = []; |
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/** |
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* @var array the configuration for trusted security related headers. |
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* |
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* An array key is an IPv4 or IPv6 IP address in CIDR notation for matching a client. |
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* |
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* An array value is a list of headers to trust. These will be matched against |
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* [[secureHeaders]] to determine which headers are allowed to be sent by a specified host. |
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* The case of the header names must be the same as specified in [[secureHeaders]]. |
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* |
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* For example, to trust all headers listed in [[secureHeaders]] for IP addresses |
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* in range `192.168.0.0-192.168.0.254` write the following: |
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* |
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* ```php |
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* [ |
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* '192.168.0.0/24', |
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* ] |
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* ``` |
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* |
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* To trust just the `X-Forwarded-For` header from `10.0.0.1`, use: |
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* |
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* ``` |
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* [ |
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* '10.0.0.1' => ['X-Forwarded-For'] |
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* ] |
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* ``` |
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* |
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* Default is to trust all headers except those listed in [[secureHeaders]] from all hosts. |
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* Matches are tried in order and searching is stopped when IP matches. |
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* |
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* > Info: Matching is performed using [[IpValidator]]. |
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* See [[IpValidator::::setRanges()|IpValidator::setRanges()]] |
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* and [[IpValidator::networks]] for advanced matching. |
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* |
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* @see $secureHeaders |
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* @since 2.0.13 |
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*/ |
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public $trustedHosts = []; |
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/** |
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* @var array lists of headers that are, by default, subject to the trusted host configuration. |
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* These headers will be filtered unless explicitly allowed in [[trustedHosts]]. |
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* The match of header names is case-insensitive. |
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* @see https://en.wikipedia.org/wiki/List_of_HTTP_header_fields |
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* @see $trustedHosts |
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* @since 2.0.13 |
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*/ |
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public $secureHeaders = [ |
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'X-Forwarded-For', |
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'X-Forwarded-Host', |
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'X-Forwarded-Proto', |
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'Front-End-Https', |
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'X-Rewrite-Url', |
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]; |
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/** |
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* @var string[] List of headers where proxies store the real client IP. |
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* It's not advisable to put insecure headers here. |
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* The match of header names is case-insensitive. |
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* @see $trustedHosts |
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* @see $secureHeaders |
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* @since 2.0.13 |
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*/ |
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public $ipHeaders = [ |
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'X-Forwarded-For', |
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]; |
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/** |
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* @var array list of headers to check for determining whether the connection is made via HTTPS. |
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* The array keys are header names and the array value is a list of header values that indicate a secure connection. |
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* The match of header names and values is case-insensitive. |
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* It's not advisable to put insecure headers here. |
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* @see $trustedHosts |
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* @see $secureHeaders |
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* @since 2.0.13 |
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*/ |
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public $secureProtocolHeaders = [ |
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'X-Forwarded-Proto' => ['https'], |
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'Front-End-Https' => ['on'], |
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]; |
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/** |
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* @var CookieCollection Collection of request cookies. |
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*/ |
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private $_cookies; |
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/** |
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* @var HeaderCollection Collection of request headers. |
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*/ |
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private $_headers; |
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/** |
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* Resolves the current request into a route and the associated parameters. |
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* @return array the first element is the route, and the second is the associated parameters. |
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* @throws NotFoundHttpException if the request cannot be resolved. |
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*/ |
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public function resolve() |
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{ |
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$result = Yii::$app->getUrlManager()->parseRequest($this); |
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if ($result !== false) { |
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list($route, $params) = $result; |
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if ($this->_queryParams === null) { |
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$_GET = $params + $_GET; // preserve numeric keys |
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} else { |
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$this->_queryParams = $params + $this->_queryParams; |
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} |
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return [$route, $this->getQueryParams()]; |
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} |
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throw new NotFoundHttpException(Yii::t('yii', 'Page not found.')); |
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} |
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|
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/** |
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* Filters headers according to the [[trustedHosts]]. |
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* @param HeaderCollection $headerCollection |
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* @since 2.0.13 |
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*/ |
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protected function filterHeaders(HeaderCollection $headerCollection) |
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{ |
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// do not trust any of the [[secureHeaders]] by default |
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$trustedHeaders = []; |
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|
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// check if the client is a trusted host |
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if (!empty($this->trustedHosts)) { |
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$validator = $this->getIpValidator(); |
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$ip = $this->getRemoteIP(); |
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foreach ($this->trustedHosts as $cidr => $headers) { |
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if (!is_array($headers)) { |
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$cidr = $headers; |
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$headers = $this->secureHeaders; |
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} |
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$validator->setRanges($cidr); |
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if ($validator->validate($ip)) { |
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$trustedHeaders = $headers; |
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break; |
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} |
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} |
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} |
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// filter all secure headers unless they are trusted |
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foreach ($this->secureHeaders as $secureHeader) { |
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if (!in_array($secureHeader, $trustedHeaders)) { |
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$headerCollection->remove($secureHeader); |
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} |
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} |
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} |
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|
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/** |
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* Creates instance of [[IpValidator]]. |
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* You can override this method to adjust validator or implement different matching strategy. |
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* |
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* @return IpValidator |
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* @since 2.0.13 |
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*/ |
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protected function getIpValidator() |
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{ |
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return new IpValidator(); |
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} |
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|
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/** |
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* Returns the header collection. |
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* The header collection contains incoming HTTP headers. |
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* @return HeaderCollection the header collection |
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*/ |
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public function getHeaders() |
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{ |
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if ($this->_headers === null) { |
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$this->_headers = new HeaderCollection(); |
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if (function_exists('getallheaders')) { |
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$headers = getallheaders(); |
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foreach ($headers as $name => $value) { |
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$this->_headers->add($name, $value); |
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} |
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} elseif (function_exists('http_get_request_headers')) { |
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$headers = http_get_request_headers(); |
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foreach ($headers as $name => $value) { |
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$this->_headers->add($name, $value); |
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} |
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} else { |
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foreach ($_SERVER as $name => $value) { |
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if (strncmp($name, 'HTTP_', 5) === 0) { |
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$name = str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5))))); |
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$this->_headers->add($name, $value); |
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} |
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} |
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} |
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$this->filterHeaders($this->_headers); |
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} |
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return $this->_headers; |
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} |
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/** |
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* Returns the method of the current request (e.g. GET, POST, HEAD, PUT, PATCH, DELETE). |
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* @return string request method, such as GET, POST, HEAD, PUT, PATCH, DELETE. |
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* The value returned is turned into upper case. |
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*/ |
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public function getMethod() |
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{ |
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if (isset($_POST[$this->methodParam])) { |
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return strtoupper($_POST[$this->methodParam]); |
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} |
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if ($this->headers->has('X-Http-Method-Override')) { |
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return strtoupper($this->headers->get('X-Http-Method-Override')); |
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} |
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if (isset($_SERVER['REQUEST_METHOD'])) { |
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return strtoupper($_SERVER['REQUEST_METHOD']); |
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} |
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return 'GET'; |
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} |
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/** |
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* Returns whether this is a GET request. |
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* @return bool whether this is a GET request. |
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*/ |
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public function getIsGet() |
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{ |
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return $this->getMethod() === 'GET'; |
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} |
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/** |
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* Returns whether this is an OPTIONS request. |
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* @return bool whether this is a OPTIONS request. |
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*/ |
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public function getIsOptions() |
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{ |
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return $this->getMethod() === 'OPTIONS'; |
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} |
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|
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/** |
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* Returns whether this is a HEAD request. |
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* @return bool whether this is a HEAD request. |
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*/ |
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public function getIsHead() |
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{ |
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return $this->getMethod() === 'HEAD'; |
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} |
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|
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/** |
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* Returns whether this is a POST request. |
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* @return bool whether this is a POST request. |
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*/ |
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public function getIsPost() |
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{ |
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return $this->getMethod() === 'POST'; |
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} |
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|
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/** |
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* Returns whether this is a DELETE request. |
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* @return bool whether this is a DELETE request. |
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*/ |
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public function getIsDelete() |
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{ |
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return $this->getMethod() === 'DELETE'; |
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} |
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|
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/** |
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* Returns whether this is a PUT request. |
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* @return bool whether this is a PUT request. |
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*/ |
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public function getIsPut() |
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{ |
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return $this->getMethod() === 'PUT'; |
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} |
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|
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/** |
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* Returns whether this is a PATCH request. |
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* @return bool whether this is a PATCH request. |
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*/ |
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public function getIsPatch() |
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{ |
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return $this->getMethod() === 'PATCH'; |
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} |
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|
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/** |
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* Returns whether this is an AJAX (XMLHttpRequest) request. |
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* |
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* Note that jQuery doesn't set the header in case of cross domain |
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* requests: https://stackoverflow.com/questions/8163703/cross-domain-ajax-doesnt-send-x-requested-with-header |
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* |
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* @return bool whether this is an AJAX (XMLHttpRequest) request. |
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*/ |
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public function getIsAjax() |
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{ |
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return $this->headers->get('X-Requested-With') === 'XMLHttpRequest'; |
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} |
|
|
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/** |
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* Returns whether this is a PJAX request. |
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* @return bool whether this is a PJAX request |
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*/ |
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public function getIsPjax() |
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{ |
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return $this->getIsAjax() && $this->headers->has('X-Pjax'); |
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} |
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|
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/** |
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* Returns whether this is an Adobe Flash or Flex request. |
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* @return bool whether this is an Adobe Flash or Adobe Flex request. |
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*/ |
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public function getIsFlash() |
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{ |
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$userAgent = $this->headers->get('User-Agent', ''); |
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return stripos($userAgent, 'Shockwave') !== false |
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|| stripos($userAgent, 'Flash') !== false; |
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} |
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|
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private $_rawBody; |
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|
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/** |
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* Returns the raw HTTP request body. |
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* @return string the request body |
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*/ |
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public function getRawBody() |
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{ |
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if ($this->_rawBody === null) { |
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$this->_rawBody = file_get_contents('php://input'); |
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} |
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|
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return $this->_rawBody; |
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} |
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|
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/** |
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* Sets the raw HTTP request body, this method is mainly used by test scripts to simulate raw HTTP requests. |
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* @param string $rawBody the request body |
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*/ |
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public function setRawBody($rawBody) |
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{ |
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$this->_rawBody = $rawBody; |
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} |
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|
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private $_bodyParams; |
|
|
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/** |
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* Returns the request parameters given in the request body. |
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* |
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* Request parameters are determined using the parsers configured in [[parsers]] property. |
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* If no parsers are configured for the current [[contentType]] it uses the PHP function `mb_parse_str()` |
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* to parse the [[rawBody|request body]]. |
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* @return array the request parameters given in the request body. |
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* @throws \yii\base\InvalidConfigException if a registered parser does not implement the [[RequestParserInterface]]. |
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* @see getMethod() |
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* @see getBodyParam() |
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* @see setBodyParams() |
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*/ |
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public function getBodyParams() |
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{ |
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if ($this->_bodyParams === null) { |
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if (isset($_POST[$this->methodParam])) { |
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$this->_bodyParams = $_POST; |
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unset($this->_bodyParams[$this->methodParam]); |
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return $this->_bodyParams; |
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} |
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|
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$rawContentType = $this->getContentType(); |
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if (($pos = strpos($rawContentType, ';')) !== false) { |
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// e.g. text/html; charset=UTF-8 |
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$contentType = substr($rawContentType, 0, $pos); |
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} else { |
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$contentType = $rawContentType; |
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} |
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|
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if (isset($this->parsers[$contentType])) { |
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$parser = Yii::createObject($this->parsers[$contentType]); |
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if (!($parser instanceof RequestParserInterface)) { |
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throw new InvalidConfigException("The '$contentType' request parser is invalid. It must implement the yii\\web\\RequestParserInterface."); |
|
} |
|
$this->_bodyParams = $parser->parse($this->getRawBody(), $rawContentType); |
|
} elseif (isset($this->parsers['*'])) { |
|
$parser = Yii::createObject($this->parsers['*']); |
|
if (!($parser instanceof RequestParserInterface)) { |
|
throw new InvalidConfigException('The fallback request parser is invalid. It must implement the yii\\web\\RequestParserInterface.'); |
|
} |
|
$this->_bodyParams = $parser->parse($this->getRawBody(), $rawContentType); |
|
} elseif ($this->getMethod() === 'POST') { |
|
// PHP has already parsed the body so we have all params in $_POST |
|
$this->_bodyParams = $_POST; |
|
} else { |
|
$this->_bodyParams = []; |
|
mb_parse_str($this->getRawBody(), $this->_bodyParams); |
|
} |
|
} |
|
|
|
return $this->_bodyParams; |
|
} |
|
|
|
/** |
|
* Sets the request body parameters. |
|
* @param array $values the request body parameters (name-value pairs) |
|
* @see getBodyParam() |
|
* @see getBodyParams() |
|
*/ |
|
public function setBodyParams($values) |
|
{ |
|
$this->_bodyParams = $values; |
|
} |
|
|
|
/** |
|
* Returns the named request body parameter value. |
|
* If the parameter does not exist, the second parameter passed to this method will be returned. |
|
* @param string $name the parameter name |
|
* @param mixed $defaultValue the default parameter value if the parameter does not exist. |
|
* @return mixed the parameter value |
|
* @see getBodyParams() |
|
* @see setBodyParams() |
|
*/ |
|
public function getBodyParam($name, $defaultValue = null) |
|
{ |
|
$params = $this->getBodyParams(); |
|
|
|
return isset($params[$name]) ? $params[$name] : $defaultValue; |
|
} |
|
|
|
/** |
|
* Returns POST parameter with a given name. If name isn't specified, returns an array of all POST parameters. |
|
* |
|
* @param string $name the parameter name |
|
* @param mixed $defaultValue the default parameter value if the parameter does not exist. |
|
* @return array|mixed |
|
*/ |
|
public function post($name = null, $defaultValue = null) |
|
{ |
|
if ($name === null) { |
|
return $this->getBodyParams(); |
|
} |
|
|
|
return $this->getBodyParam($name, $defaultValue); |
|
} |
|
|
|
private $_queryParams; |
|
|
|
/** |
|
* Returns the request parameters given in the [[queryString]]. |
|
* |
|
* This method will return the contents of `$_GET` if params where not explicitly set. |
|
* @return array the request GET parameter values. |
|
* @see setQueryParams() |
|
*/ |
|
public function getQueryParams() |
|
{ |
|
if ($this->_queryParams === null) { |
|
return $_GET; |
|
} |
|
|
|
return $this->_queryParams; |
|
} |
|
|
|
/** |
|
* Sets the request [[queryString]] parameters. |
|
* @param array $values the request query parameters (name-value pairs) |
|
* @see getQueryParam() |
|
* @see getQueryParams() |
|
*/ |
|
public function setQueryParams($values) |
|
{ |
|
$this->_queryParams = $values; |
|
} |
|
|
|
/** |
|
* Returns GET parameter with a given name. If name isn't specified, returns an array of all GET parameters. |
|
* |
|
* @param string $name the parameter name |
|
* @param mixed $defaultValue the default parameter value if the parameter does not exist. |
|
* @return array|mixed |
|
*/ |
|
public function get($name = null, $defaultValue = null) |
|
{ |
|
if ($name === null) { |
|
return $this->getQueryParams(); |
|
} |
|
|
|
return $this->getQueryParam($name, $defaultValue); |
|
} |
|
|
|
/** |
|
* Returns the named GET parameter value. |
|
* If the GET parameter does not exist, the second parameter passed to this method will be returned. |
|
* @param string $name the GET parameter name. |
|
* @param mixed $defaultValue the default parameter value if the GET parameter does not exist. |
|
* @return mixed the GET parameter value |
|
* @see getBodyParam() |
|
*/ |
|
public function getQueryParam($name, $defaultValue = null) |
|
{ |
|
$params = $this->getQueryParams(); |
|
|
|
return isset($params[$name]) ? $params[$name] : $defaultValue; |
|
} |
|
|
|
private $_hostInfo; |
|
private $_hostName; |
|
|
|
/** |
|
* Returns the schema and host part of the current request URL. |
|
* |
|
* The returned URL does not have an ending slash. |
|
* |
|
* By default this value is based on the user request information. This method will |
|
* return the value of `$_SERVER['HTTP_HOST']` if it is available or `$_SERVER['SERVER_NAME']` if not. |
|
* You may want to check out the [PHP documentation](http://php.net/manual/en/reserved.variables.server.php) |
|
* for more information on these variables. |
|
* |
|
* You may explicitly specify it by setting the [[setHostInfo()|hostInfo]] property. |
|
* |
|
* > Warning: Dependent on the server configuration this information may not be |
|
* > reliable and [may be faked by the user sending the HTTP request](https://www.acunetix.com/vulnerabilities/web/host-header-attack). |
|
* > If the webserver is configured to serve the same site independent of the value of |
|
* > the `Host` header, this value is not reliable. In such situations you should either |
|
* > fix your webserver configuration or explicitly set the value by setting the [[setHostInfo()|hostInfo]] property. |
|
* > If you don't have access to the server configuration, you can setup [[\yii\filters\HostControl]] filter at |
|
* > application level in order to protect against such kind of attack. |
|
* |
|
* @property string|null schema and hostname part (with port number if needed) of the request URL |
|
* (e.g. `http://www.yiiframework.com`), null if can't be obtained from `$_SERVER` and wasn't set. |
|
* See [[getHostInfo()]] for security related notes on this property. |
|
* @return string|null schema and hostname part (with port number if needed) of the request URL |
|
* (e.g. `http://www.yiiframework.com`), null if can't be obtained from `$_SERVER` and wasn't set. |
|
* @see setHostInfo() |
|
*/ |
|
public function getHostInfo() |
|
{ |
|
if ($this->_hostInfo === null) { |
|
$secure = $this->getIsSecureConnection(); |
|
$http = $secure ? 'https' : 'http'; |
|
if ($this->headers->has('Host')) { |
|
$this->_hostInfo = $http . '://' . $this->headers->get('Host'); |
|
} elseif (isset($_SERVER['SERVER_NAME'])) { |
|
$this->_hostInfo = $http . '://' . $_SERVER['SERVER_NAME']; |
|
$port = $secure ? $this->getSecurePort() : $this->getPort(); |
|
if (($port !== 80 && !$secure) || ($port !== 443 && $secure)) { |
|
$this->_hostInfo .= ':' . $port; |
|
} |
|
} |
|
} |
|
|
|
return $this->_hostInfo; |
|
} |
|
|
|
/** |
|
* Sets the schema and host part of the application URL. |
|
* This setter is provided in case the schema and hostname cannot be determined |
|
* on certain Web servers. |
|
* @param string|null $value the schema and host part of the application URL. The trailing slashes will be removed. |
|
* @see getHostInfo() for security related notes on this property. |
|
*/ |
|
public function setHostInfo($value) |
|
{ |
|
$this->_hostName = null; |
|
$this->_hostInfo = $value === null ? null : rtrim($value, '/'); |
|
} |
|
|
|
/** |
|
* Returns the host part of the current request URL. |
|
* Value is calculated from current [[getHostInfo()|hostInfo]] property. |
|
* |
|
* > Warning: The content of this value may not be reliable, dependent on the server |
|
* > configuration. Please refer to [[getHostInfo()]] for more information. |
|
* |
|
* @return string|null hostname part of the request URL (e.g. `www.yiiframework.com`) |
|
* @see getHostInfo() |
|
* @since 2.0.10 |
|
*/ |
|
public function getHostName() |
|
{ |
|
if ($this->_hostName === null) { |
|
$this->_hostName = parse_url($this->getHostInfo(), PHP_URL_HOST); |
|
} |
|
|
|
return $this->_hostName; |
|
} |
|
|
|
private $_baseUrl; |
|
|
|
/** |
|
* Returns the relative URL for the application. |
|
* This is similar to [[scriptUrl]] except that it does not include the script file name, |
|
* and the ending slashes are removed. |
|
* @return string the relative URL for the application |
|
* @see setScriptUrl() |
|
*/ |
|
public function getBaseUrl() |
|
{ |
|
if ($this->_baseUrl === null) { |
|
$this->_baseUrl = rtrim(dirname($this->getScriptUrl()), '\\/'); |
|
} |
|
|
|
return $this->_baseUrl; |
|
} |
|
|
|
/** |
|
* Sets the relative URL for the application. |
|
* By default the URL is determined based on the entry script URL. |
|
* This setter is provided in case you want to change this behavior. |
|
* @param string $value the relative URL for the application |
|
*/ |
|
public function setBaseUrl($value) |
|
{ |
|
$this->_baseUrl = $value; |
|
} |
|
|
|
private $_scriptUrl; |
|
|
|
/** |
|
* Returns the relative URL of the entry script. |
|
* The implementation of this method referenced Zend_Controller_Request_Http in Zend Framework. |
|
* @return string the relative URL of the entry script. |
|
* @throws InvalidConfigException if unable to determine the entry script URL |
|
*/ |
|
public function getScriptUrl() |
|
{ |
|
if ($this->_scriptUrl === null) { |
|
$scriptFile = $this->getScriptFile(); |
|
$scriptName = basename($scriptFile); |
|
if (isset($_SERVER['SCRIPT_NAME']) && basename($_SERVER['SCRIPT_NAME']) === $scriptName) { |
|
$this->_scriptUrl = $_SERVER['SCRIPT_NAME']; |
|
} elseif (isset($_SERVER['PHP_SELF']) && basename($_SERVER['PHP_SELF']) === $scriptName) { |
|
$this->_scriptUrl = $_SERVER['PHP_SELF']; |
|
} elseif (isset($_SERVER['ORIG_SCRIPT_NAME']) && basename($_SERVER['ORIG_SCRIPT_NAME']) === $scriptName) { |
|
$this->_scriptUrl = $_SERVER['ORIG_SCRIPT_NAME']; |
|
} elseif (isset($_SERVER['PHP_SELF']) && ($pos = strpos($_SERVER['PHP_SELF'], '/' . $scriptName)) !== false) { |
|
$this->_scriptUrl = substr($_SERVER['SCRIPT_NAME'], 0, $pos) . '/' . $scriptName; |
|
} elseif (!empty($_SERVER['DOCUMENT_ROOT']) && strpos($scriptFile, $_SERVER['DOCUMENT_ROOT']) === 0) { |
|
$this->_scriptUrl = str_replace('\\', '/', str_replace($_SERVER['DOCUMENT_ROOT'], '', $scriptFile)); |
|
} else { |
|
throw new InvalidConfigException('Unable to determine the entry script URL.'); |
|
} |
|
} |
|
|
|
return $this->_scriptUrl; |
|
} |
|
|
|
/** |
|
* Sets the relative URL for the application entry script. |
|
* This setter is provided in case the entry script URL cannot be determined |
|
* on certain Web servers. |
|
* @param string $value the relative URL for the application entry script. |
|
*/ |
|
public function setScriptUrl($value) |
|
{ |
|
$this->_scriptUrl = $value === null ? null : '/' . trim($value, '/'); |
|
} |
|
|
|
private $_scriptFile; |
|
|
|
/** |
|
* Returns the entry script file path. |
|
* The default implementation will simply return `$_SERVER['SCRIPT_FILENAME']`. |
|
* @return string the entry script file path |
|
* @throws InvalidConfigException |
|
*/ |
|
public function getScriptFile() |
|
{ |
|
if (isset($this->_scriptFile)) { |
|
return $this->_scriptFile; |
|
} |
|
|
|
if (isset($_SERVER['SCRIPT_FILENAME'])) { |
|
return $_SERVER['SCRIPT_FILENAME']; |
|
} |
|
|
|
throw new InvalidConfigException('Unable to determine the entry script file path.'); |
|
} |
|
|
|
/** |
|
* Sets the entry script file path. |
|
* The entry script file path normally can be obtained from `$_SERVER['SCRIPT_FILENAME']`. |
|
* If your server configuration does not return the correct value, you may configure |
|
* this property to make it right. |
|
* @param string $value the entry script file path. |
|
*/ |
|
public function setScriptFile($value) |
|
{ |
|
$this->_scriptFile = $value; |
|
} |
|
|
|
private $_pathInfo; |
|
|
|
/** |
|
* Returns the path info of the currently requested URL. |
|
* A path info refers to the part that is after the entry script and before the question mark (query string). |
|
* The starting and ending slashes are both removed. |
|
* @return string part of the request URL that is after the entry script and before the question mark. |
|
* Note, the returned path info is already URL-decoded. |
|
* @throws InvalidConfigException if the path info cannot be determined due to unexpected server configuration |
|
*/ |
|
public function getPathInfo() |
|
{ |
|
if ($this->_pathInfo === null) { |
|
$this->_pathInfo = $this->resolvePathInfo(); |
|
} |
|
|
|
return $this->_pathInfo; |
|
} |
|
|
|
/** |
|
* Sets the path info of the current request. |
|
* This method is mainly provided for testing purpose. |
|
* @param string $value the path info of the current request |
|
*/ |
|
public function setPathInfo($value) |
|
{ |
|
$this->_pathInfo = $value === null ? null : ltrim($value, '/'); |
|
} |
|
|
|
/** |
|
* Resolves the path info part of the currently requested URL. |
|
* A path info refers to the part that is after the entry script and before the question mark (query string). |
|
* The starting slashes are both removed (ending slashes will be kept). |
|
* @return string part of the request URL that is after the entry script and before the question mark. |
|
* Note, the returned path info is decoded. |
|
* @throws InvalidConfigException if the path info cannot be determined due to unexpected server configuration |
|
*/ |
|
protected function resolvePathInfo() |
|
{ |
|
$pathInfo = $this->getUrl(); |
|
|
|
if (($pos = strpos($pathInfo, '?')) !== false) { |
|
$pathInfo = substr($pathInfo, 0, $pos); |
|
} |
|
|
|
$pathInfo = urldecode($pathInfo); |
|
|
|
// try to encode in UTF8 if not so |
|
// http://w3.org/International/questions/qa-forms-utf-8.html |
|
if (!preg_match('%^(?: |
|
[\x09\x0A\x0D\x20-\x7E] # ASCII |
|
| [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte |
|
| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs |
|
| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte |
|
| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates |
|
| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3 |
|
| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15 |
|
| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16 |
|
)*$%xs', $pathInfo) |
|
) { |
|
$pathInfo = utf8_encode($pathInfo); |
|
} |
|
|
|
$scriptUrl = $this->getScriptUrl(); |
|
$baseUrl = $this->getBaseUrl(); |
|
if (strpos($pathInfo, $scriptUrl) === 0) { |
|
$pathInfo = substr($pathInfo, strlen($scriptUrl)); |
|
} elseif ($baseUrl === '' || strpos($pathInfo, $baseUrl) === 0) { |
|
$pathInfo = substr($pathInfo, strlen($baseUrl)); |
|
} elseif (isset($_SERVER['PHP_SELF']) && strpos($_SERVER['PHP_SELF'], $scriptUrl) === 0) { |
|
$pathInfo = substr($_SERVER['PHP_SELF'], strlen($scriptUrl)); |
|
} else { |
|
throw new InvalidConfigException('Unable to determine the path info of the current request.'); |
|
} |
|
|
|
if (substr($pathInfo, 0, 1) === '/') { |
|
$pathInfo = substr($pathInfo, 1); |
|
} |
|
|
|
return (string) $pathInfo; |
|
} |
|
|
|
/** |
|
* Returns the currently requested absolute URL. |
|
* This is a shortcut to the concatenation of [[hostInfo]] and [[url]]. |
|
* @return string the currently requested absolute URL. |
|
*/ |
|
public function getAbsoluteUrl() |
|
{ |
|
return $this->getHostInfo() . $this->getUrl(); |
|
} |
|
|
|
private $_url; |
|
|
|
/** |
|
* Returns the currently requested relative URL. |
|
* This refers to the portion of the URL that is after the [[hostInfo]] part. |
|
* It includes the [[queryString]] part if any. |
|
* @return string the currently requested relative URL. Note that the URI returned may be URL-encoded depending on the client. |
|
* @throws InvalidConfigException if the URL cannot be determined due to unusual server configuration |
|
*/ |
|
public function getUrl() |
|
{ |
|
if ($this->_url === null) { |
|
$this->_url = $this->resolveRequestUri(); |
|
} |
|
|
|
return $this->_url; |
|
} |
|
|
|
/** |
|
* Sets the currently requested relative URL. |
|
* The URI must refer to the portion that is after [[hostInfo]]. |
|
* Note that the URI should be URL-encoded. |
|
* @param string $value the request URI to be set |
|
*/ |
|
public function setUrl($value) |
|
{ |
|
$this->_url = $value; |
|
} |
|
|
|
/** |
|
* Resolves the request URI portion for the currently requested URL. |
|
* This refers to the portion that is after the [[hostInfo]] part. It includes the [[queryString]] part if any. |
|
* The implementation of this method referenced Zend_Controller_Request_Http in Zend Framework. |
|
* @return string|bool the request URI portion for the currently requested URL. |
|
* Note that the URI returned may be URL-encoded depending on the client. |
|
* @throws InvalidConfigException if the request URI cannot be determined due to unusual server configuration |
|
*/ |
|
protected function resolveRequestUri() |
|
{ |
|
if ($this->headers->has('X-Rewrite-Url')) { // IIS |
|
$requestUri = $this->headers->get('X-Rewrite-Url'); |
|
} elseif (isset($_SERVER['REQUEST_URI'])) { |
|
$requestUri = $_SERVER['REQUEST_URI']; |
|
if ($requestUri !== '' && $requestUri[0] !== '/') { |
|
$requestUri = preg_replace('/^(http|https):\/\/[^\/]+/i', '', $requestUri); |
|
} |
|
} elseif (isset($_SERVER['ORIG_PATH_INFO'])) { // IIS 5.0 CGI |
|
$requestUri = $_SERVER['ORIG_PATH_INFO']; |
|
if (!empty($_SERVER['QUERY_STRING'])) { |
|
$requestUri .= '?' . $_SERVER['QUERY_STRING']; |
|
} |
|
} else { |
|
throw new InvalidConfigException('Unable to determine the request URI.'); |
|
} |
|
|
|
return $requestUri; |
|
} |
|
|
|
/** |
|
* Returns part of the request URL that is after the question mark. |
|
* @return string part of the request URL that is after the question mark |
|
*/ |
|
public function getQueryString() |
|
{ |
|
return isset($_SERVER['QUERY_STRING']) ? $_SERVER['QUERY_STRING'] : ''; |
|
} |
|
|
|
/** |
|
* Return if the request is sent via secure channel (https). |
|
* @return bool if the request is sent via secure channel (https) |
|
*/ |
|
public function getIsSecureConnection() |
|
{ |
|
if (isset($_SERVER['HTTPS']) && (strcasecmp($_SERVER['HTTPS'], 'on') === 0 || $_SERVER['HTTPS'] == 1)) { |
|
return true; |
|
} |
|
foreach ($this->secureProtocolHeaders as $header => $values) { |
|
if (($headerValue = $this->headers->get($header, null)) !== null) { |
|
foreach ($values as $value) { |
|
if (strcasecmp($headerValue, $value) === 0) { |
|
return true; |
|
} |
|
} |
|
} |
|
} |
|
|
|
return false; |
|
} |
|
|
|
/** |
|
* Returns the server name. |
|
* @return string server name, null if not available |
|
*/ |
|
public function getServerName() |
|
{ |
|
return isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : null; |
|
} |
|
|
|
/** |
|
* Returns the server port number. |
|
* @return int|null server port number, null if not available |
|
*/ |
|
public function getServerPort() |
|
{ |
|
return isset($_SERVER['SERVER_PORT']) ? (int) $_SERVER['SERVER_PORT'] : null; |
|
} |
|
|
|
/** |
|
* Returns the URL referrer. |
|
* @return string|null URL referrer, null if not available |
|
*/ |
|
public function getReferrer() |
|
{ |
|
return $this->headers->get('Referer'); |
|
} |
|
|
|
/** |
|
* Returns the URL origin of a CORS request. |
|
* |
|
* The return value is taken from the `Origin` [[getHeaders()|header]] sent by the browser. |
|
* |
|
* Note that the origin request header indicates where a fetch originates from. |
|
* It doesn't include any path information, but only the server name. |
|
* It is sent with a CORS requests, as well as with POST requests. |
|
* It is similar to the referer header, but, unlike this header, it doesn't disclose the whole path. |
|
* Please refer to <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Origin> for more information. |
|
* |
|
* @return string|null URL origin of a CORS request, `null` if not available. |
|
* @see getHeaders() |
|
* @since 2.0.13 |
|
*/ |
|
public function getOrigin() |
|
{ |
|
return $this->getHeaders()->get('origin'); |
|
} |
|
|
|
/** |
|
* Returns the user agent. |
|
* @return string|null user agent, null if not available |
|
*/ |
|
public function getUserAgent() |
|
{ |
|
return $this->headers->get('User-Agent'); |
|
} |
|
|
|
/** |
|
* Returns the user IP address. |
|
* The IP is determined using headers and / or `$_SERVER` variables. |
|
* @return string|null user IP address, null if not available |
|
*/ |
|
public function getUserIP() |
|
{ |
|
foreach ($this->ipHeaders as $ipHeader) { |
|
if ($this->headers->has($ipHeader)) { |
|
return trim(explode(',', $this->headers->get($ipHeader))[0]); |
|
} |
|
} |
|
|
|
return $this->getRemoteIP(); |
|
} |
|
|
|
/** |
|
* Returns the user host name. |
|
* The HOST is determined using headers and / or `$_SERVER` variables. |
|
* @return string|null user host name, null if not available |
|
*/ |
|
public function getUserHost() |
|
{ |
|
foreach ($this->ipHeaders as $ipHeader) { |
|
if ($this->headers->has($ipHeader)) { |
|
return gethostbyaddr(trim(explode(',', $this->headers->get($ipHeader))[0])); |
|
} |
|
} |
|
|
|
return $this->getRemoteHost(); |
|
} |
|
|
|
/** |
|
* Returns the IP on the other end of this connection. |
|
* This is always the next hop, any headers are ignored. |
|
* @return string|null remote IP address, `null` if not available. |
|
* @since 2.0.13 |
|
*/ |
|
public function getRemoteIP() |
|
{ |
|
return isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : null; |
|
} |
|
|
|
/** |
|
* Returns the host name of the other end of this connection. |
|
* This is always the next hop, any headers are ignored. |
|
* @return string|null remote host name, `null` if not available |
|
* @see getUserHost() |
|
* @see getRemoteIP() |
|
* @since 2.0.13 |
|
*/ |
|
public function getRemoteHost() |
|
{ |
|
return isset($_SERVER['REMOTE_HOST']) ? $_SERVER['REMOTE_HOST'] : null; |
|
} |
|
|
|
/** |
|
* @return string|null the username sent via HTTP authentication, `null` if the username is not given |
|
* @see getAuthCredentials() to get both username and password in one call |
|
*/ |
|
public function getAuthUser() |
|
{ |
|
return $this->getAuthCredentials()[0]; |
|
} |
|
|
|
/** |
|
* @return string|null the password sent via HTTP authentication, `null` if the password is not given |
|
* @see getAuthCredentials() to get both username and password in one call |
|
*/ |
|
public function getAuthPassword() |
|
{ |
|
return $this->getAuthCredentials()[1]; |
|
} |
|
|
|
/** |
|
* @return array that contains exactly two elements: |
|
* - 0: the username sent via HTTP authentication, `null` if the username is not given |
|
* - 1: the password sent via HTTP authentication, `null` if the password is not given |
|
* @see getAuthUser() to get only username |
|
* @see getAuthPassword() to get only password |
|
* @since 2.0.13 |
|
*/ |
|
public function getAuthCredentials() |
|
{ |
|
$username = isset($_SERVER['PHP_AUTH_USER']) ? $_SERVER['PHP_AUTH_USER'] : null; |
|
$password = isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : null; |
|
if ($username !== null || $password !== null) { |
|
return [$username, $password]; |
|
} |
|
|
|
/* |
|
* Apache with php-cgi does not pass HTTP Basic authentication to PHP by default. |
|
* To make it work, add the following line to to your .htaccess file: |
|
* |
|
* RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}] |
|
*/ |
|
$auth_token = $this->getHeaders()->get('HTTP_AUTHORIZATION') ?: $this->getHeaders()->get('REDIRECT_HTTP_AUTHORIZATION'); |
|
if ($auth_token !== null && strpos(strtolower($auth_token), 'basic') === 0) { |
|
$parts = array_map(function ($value) { |
|
return strlen($value) === 0 ? null : $value; |
|
}, explode(':', base64_decode(mb_substr($auth_token, 6)), 2)); |
|
|
|
if (count($parts) < 2) { |
|
return [$parts[0], null]; |
|
} |
|
|
|
return $parts; |
|
} |
|
|
|
return [null, null]; |
|
} |
|
|
|
private $_port; |
|
|
|
/** |
|
* Returns the port to use for insecure requests. |
|
* Defaults to 80, or the port specified by the server if the current |
|
* request is insecure. |
|
* @return int port number for insecure requests. |
|
* @see setPort() |
|
*/ |
|
public function getPort() |
|
{ |
|
if ($this->_port === null) { |
|
$this->_port = !$this->getIsSecureConnection() && isset($_SERVER['SERVER_PORT']) ? (int) $_SERVER['SERVER_PORT'] : 80; |
|
} |
|
|
|
return $this->_port; |
|
} |
|
|
|
/** |
|
* Sets the port to use for insecure requests. |
|
* This setter is provided in case a custom port is necessary for certain |
|
* server configurations. |
|
* @param int $value port number. |
|
*/ |
|
public function setPort($value) |
|
{ |
|
if ($value != $this->_port) { |
|
$this->_port = (int) $value; |
|
$this->_hostInfo = null; |
|
} |
|
} |
|
|
|
private $_securePort; |
|
|
|
/** |
|
* Returns the port to use for secure requests. |
|
* Defaults to 443, or the port specified by the server if the current |
|
* request is secure. |
|
* @return int port number for secure requests. |
|
* @see setSecurePort() |
|
*/ |
|
public function getSecurePort() |
|
{ |
|
if ($this->_securePort === null) { |
|
$this->_securePort = $this->getIsSecureConnection() && isset($_SERVER['SERVER_PORT']) ? (int) $_SERVER['SERVER_PORT'] : 443; |
|
} |
|
|
|
return $this->_securePort; |
|
} |
|
|
|
/** |
|
* Sets the port to use for secure requests. |
|
* This setter is provided in case a custom port is necessary for certain |
|
* server configurations. |
|
* @param int $value port number. |
|
*/ |
|
public function setSecurePort($value) |
|
{ |
|
if ($value != $this->_securePort) { |
|
$this->_securePort = (int) $value; |
|
$this->_hostInfo = null; |
|
} |
|
} |
|
|
|
private $_contentTypes; |
|
|
|
/** |
|
* Returns the content types acceptable by the end user. |
|
* |
|
* This is determined by the `Accept` HTTP header. For example, |
|
* |
|
* ```php |
|
* $_SERVER['HTTP_ACCEPT'] = 'text/plain; q=0.5, application/json; version=1.0, application/xml; version=2.0;'; |
|
* $types = $request->getAcceptableContentTypes(); |
|
* print_r($types); |
|
* // displays: |
|
* // [ |
|
* // 'application/json' => ['q' => 1, 'version' => '1.0'], |
|
* // 'application/xml' => ['q' => 1, 'version' => '2.0'], |
|
* // 'text/plain' => ['q' => 0.5], |
|
* // ] |
|
* ``` |
|
* |
|
* @return array the content types ordered by the quality score. Types with the highest scores |
|
* will be returned first. The array keys are the content types, while the array values |
|
* are the corresponding quality score and other parameters as given in the header. |
|
*/ |
|
public function getAcceptableContentTypes() |
|
{ |
|
if ($this->_contentTypes === null) { |
|
if ($this->headers->get('Accept') !== null) { |
|
$this->_contentTypes = $this->parseAcceptHeader($this->headers->get('Accept')); |
|
} else { |
|
$this->_contentTypes = []; |
|
} |
|
} |
|
|
|
return $this->_contentTypes; |
|
} |
|
|
|
/** |
|
* Sets the acceptable content types. |
|
* Please refer to [[getAcceptableContentTypes()]] on the format of the parameter. |
|
* @param array $value the content types that are acceptable by the end user. They should |
|
* be ordered by the preference level. |
|
* @see getAcceptableContentTypes() |
|
* @see parseAcceptHeader() |
|
*/ |
|
public function setAcceptableContentTypes($value) |
|
{ |
|
$this->_contentTypes = $value; |
|
} |
|
|
|
/** |
|
* Returns request content-type |
|
* The Content-Type header field indicates the MIME type of the data |
|
* contained in [[getRawBody()]] or, in the case of the HEAD method, the |
|
* media type that would have been sent had the request been a GET. |
|
* For the MIME-types the user expects in response, see [[acceptableContentTypes]]. |
|
* @return string request content-type. Null is returned if this information is not available. |
|
* @link https://tools.ietf.org/html/rfc2616#section-14.17 |
|
* HTTP 1.1 header field definitions |
|
*/ |
|
public function getContentType() |
|
{ |
|
if (isset($_SERVER['CONTENT_TYPE'])) { |
|
return $_SERVER['CONTENT_TYPE']; |
|
} |
|
|
|
//fix bug https://bugs.php.net/bug.php?id=66606 |
|
return $this->headers->get('Content-Type'); |
|
} |
|
|
|
private $_languages; |
|
|
|
/** |
|
* Returns the languages acceptable by the end user. |
|
* This is determined by the `Accept-Language` HTTP header. |
|
* @return array the languages ordered by the preference level. The first element |
|
* represents the most preferred language. |
|
*/ |
|
public function getAcceptableLanguages() |
|
{ |
|
if ($this->_languages === null) { |
|
if ($this->headers->has('Accept-Language')) { |
|
$this->_languages = array_keys($this->parseAcceptHeader($this->headers->get('Accept-Language'))); |
|
} else { |
|
$this->_languages = []; |
|
} |
|
} |
|
|
|
return $this->_languages; |
|
} |
|
|
|
/** |
|
* @param array $value the languages that are acceptable by the end user. They should |
|
* be ordered by the preference level. |
|
*/ |
|
public function setAcceptableLanguages($value) |
|
{ |
|
$this->_languages = $value; |
|
} |
|
|
|
/** |
|
* Parses the given `Accept` (or `Accept-Language`) header. |
|
* |
|
* This method will return the acceptable values with their quality scores and the corresponding parameters |
|
* as specified in the given `Accept` header. The array keys of the return value are the acceptable values, |
|
* while the array values consisting of the corresponding quality scores and parameters. The acceptable |
|
* values with the highest quality scores will be returned first. For example, |
|
* |
|
* ```php |
|
* $header = 'text/plain; q=0.5, application/json; version=1.0, application/xml; version=2.0;'; |
|
* $accepts = $request->parseAcceptHeader($header); |
|
* print_r($accepts); |
|
* // displays: |
|
* // [ |
|
* // 'application/json' => ['q' => 1, 'version' => '1.0'], |
|
* // 'application/xml' => ['q' => 1, 'version' => '2.0'], |
|
* // 'text/plain' => ['q' => 0.5], |
|
* // ] |
|
* ``` |
|
* |
|
* @param string $header the header to be parsed |
|
* @return array the acceptable values ordered by their quality score. The values with the highest scores |
|
* will be returned first. |
|
*/ |
|
public function parseAcceptHeader($header) |
|
{ |
|
$accepts = []; |
|
foreach (explode(',', $header) as $i => $part) { |
|
$params = preg_split('/\s*;\s*/', trim($part), -1, PREG_SPLIT_NO_EMPTY); |
|
if (empty($params)) { |
|
continue; |
|
} |
|
$values = [ |
|
'q' => [$i, array_shift($params), 1], |
|
]; |
|
foreach ($params as $param) { |
|
if (strpos($param, '=') !== false) { |
|
list($key, $value) = explode('=', $param, 2); |
|
if ($key === 'q') { |
|
$values['q'][2] = (float) $value; |
|
} else { |
|
$values[$key] = $value; |
|
} |
|
} else { |
|
$values[] = $param; |
|
} |
|
} |
|
$accepts[] = $values; |
|
} |
|
|
|
usort($accepts, function ($a, $b) { |
|
$a = $a['q']; // index, name, q |
|
$b = $b['q']; |
|
if ($a[2] > $b[2]) { |
|
return -1; |
|
} |
|
|
|
if ($a[2] < $b[2]) { |
|
return 1; |
|
} |
|
|
|
if ($a[1] === $b[1]) { |
|
return $a[0] > $b[0] ? 1 : -1; |
|
} |
|
|
|
if ($a[1] === '*/*') { |
|
return 1; |
|
} |
|
|
|
if ($b[1] === '*/*') { |
|
return -1; |
|
} |
|
|
|
$wa = $a[1][strlen($a[1]) - 1] === '*'; |
|
$wb = $b[1][strlen($b[1]) - 1] === '*'; |
|
if ($wa xor $wb) { |
|
return $wa ? 1 : -1; |
|
} |
|
|
|
return $a[0] > $b[0] ? 1 : -1; |
|
}); |
|
|
|
$result = []; |
|
foreach ($accepts as $accept) { |
|
$name = $accept['q'][1]; |
|
$accept['q'] = $accept['q'][2]; |
|
$result[$name] = $accept; |
|
} |
|
|
|
return $result; |
|
} |
|
|
|
/** |
|
* Returns the user-preferred language that should be used by this application. |
|
* The language resolution is based on the user preferred languages and the languages |
|
* supported by the application. The method will try to find the best match. |
|
* @param array $languages a list of the languages supported by the application. If this is empty, the current |
|
* application language will be returned without further processing. |
|
* @return string the language that the application should use. |
|
*/ |
|
public function getPreferredLanguage(array $languages = []) |
|
{ |
|
if (empty($languages)) { |
|
return Yii::$app->language; |
|
} |
|
foreach ($this->getAcceptableLanguages() as $acceptableLanguage) { |
|
$acceptableLanguage = str_replace('_', '-', strtolower($acceptableLanguage)); |
|
foreach ($languages as $language) { |
|
$normalizedLanguage = str_replace('_', '-', strtolower($language)); |
|
|
|
if ( |
|
$normalizedLanguage === $acceptableLanguage // en-us==en-us |
|
|| strpos($acceptableLanguage, $normalizedLanguage . '-') === 0 // en==en-us |
|
|| strpos($normalizedLanguage, $acceptableLanguage . '-') === 0 // en-us==en |
|
) { |
|
return $language; |
|
} |
|
} |
|
} |
|
|
|
return reset($languages); |
|
} |
|
|
|
/** |
|
* Gets the Etags. |
|
* |
|
* @return array The entity tags |
|
*/ |
|
public function getETags() |
|
{ |
|
if ($this->headers->has('If-None-Match')) { |
|
return preg_split('/[\s,]+/', str_replace('-gzip', '', $this->headers->get('If-None-Match')), -1, PREG_SPLIT_NO_EMPTY); |
|
} |
|
|
|
return []; |
|
} |
|
|
|
/** |
|
* Returns the cookie collection. |
|
* |
|
* Through the returned cookie collection, you may access a cookie using the following syntax: |
|
* |
|
* ```php |
|
* $cookie = $request->cookies['name'] |
|
* if ($cookie !== null) { |
|
* $value = $cookie->value; |
|
* } |
|
* |
|
* // alternatively |
|
* $value = $request->cookies->getValue('name'); |
|
* ``` |
|
* |
|
* @return CookieCollection the cookie collection. |
|
*/ |
|
public function getCookies() |
|
{ |
|
if ($this->_cookies === null) { |
|
$this->_cookies = new CookieCollection($this->loadCookies(), [ |
|
'readOnly' => true, |
|
]); |
|
} |
|
|
|
return $this->_cookies; |
|
} |
|
|
|
/** |
|
* Converts `$_COOKIE` into an array of [[Cookie]]. |
|
* @return array the cookies obtained from request |
|
* @throws InvalidConfigException if [[cookieValidationKey]] is not set when [[enableCookieValidation]] is true |
|
*/ |
|
protected function loadCookies() |
|
{ |
|
$cookies = []; |
|
if ($this->enableCookieValidation) { |
|
if ($this->cookieValidationKey == '') { |
|
throw new InvalidConfigException(get_class($this) . '::cookieValidationKey must be configured with a secret key.'); |
|
} |
|
foreach ($_COOKIE as $name => $value) { |
|
if (!is_string($value)) { |
|
continue; |
|
} |
|
$data = Yii::$app->getSecurity()->validateData($value, $this->cookieValidationKey); |
|
if ($data === false) { |
|
continue; |
|
} |
|
$data = @unserialize($data); |
|
if (is_array($data) && isset($data[0], $data[1]) && $data[0] === $name) { |
|
$cookies[$name] = Yii::createObject([ |
|
'class' => 'yii\web\Cookie', |
|
'name' => $name, |
|
'value' => $data[1], |
|
'expire' => null, |
|
]); |
|
} |
|
} |
|
} else { |
|
foreach ($_COOKIE as $name => $value) { |
|
$cookies[$name] = Yii::createObject([ |
|
'class' => 'yii\web\Cookie', |
|
'name' => $name, |
|
'value' => $value, |
|
'expire' => null, |
|
]); |
|
} |
|
} |
|
|
|
return $cookies; |
|
} |
|
|
|
private $_csrfToken; |
|
|
|
/** |
|
* Returns the token used to perform CSRF validation. |
|
* |
|
* This token is generated in a way to prevent [BREACH attacks](http://breachattack.com/). It may be passed |
|
* along via a hidden field of an HTML form or an HTTP header value to support CSRF validation. |
|
* @param bool $regenerate whether to regenerate CSRF token. When this parameter is true, each time |
|
* this method is called, a new CSRF token will be generated and persisted (in session or cookie). |
|
* @return string the token used to perform CSRF validation. |
|
*/ |
|
public function getCsrfToken($regenerate = false) |
|
{ |
|
if ($this->_csrfToken === null || $regenerate) { |
|
$token = $this->loadCsrfToken(); |
|
if ($regenerate || empty($token)) { |
|
$token = $this->generateCsrfToken(); |
|
} |
|
$this->_csrfToken = Yii::$app->security->maskToken($token); |
|
} |
|
|
|
return $this->_csrfToken; |
|
} |
|
|
|
/** |
|
* Loads the CSRF token from cookie or session. |
|
* @return string the CSRF token loaded from cookie or session. Null is returned if the cookie or session |
|
* does not have CSRF token. |
|
*/ |
|
protected function loadCsrfToken() |
|
{ |
|
if ($this->enableCsrfCookie) { |
|
return $this->getCookies()->getValue($this->csrfParam); |
|
} |
|
|
|
return Yii::$app->getSession()->get($this->csrfParam); |
|
} |
|
|
|
/** |
|
* Generates an unmasked random token used to perform CSRF validation. |
|
* @return string the random token for CSRF validation. |
|
*/ |
|
protected function generateCsrfToken() |
|
{ |
|
$token = Yii::$app->getSecurity()->generateRandomString(); |
|
if ($this->enableCsrfCookie) { |
|
$cookie = $this->createCsrfCookie($token); |
|
Yii::$app->getResponse()->getCookies()->add($cookie); |
|
} else { |
|
Yii::$app->getSession()->set($this->csrfParam, $token); |
|
} |
|
|
|
return $token; |
|
} |
|
|
|
/** |
|
* @return string the CSRF token sent via [[CSRF_HEADER]] by browser. Null is returned if no such header is sent. |
|
*/ |
|
public function getCsrfTokenFromHeader() |
|
{ |
|
return $this->headers->get(static::CSRF_HEADER); |
|
} |
|
|
|
/** |
|
* Creates a cookie with a randomly generated CSRF token. |
|
* Initial values specified in [[csrfCookie]] will be applied to the generated cookie. |
|
* @param string $token the CSRF token |
|
* @return Cookie the generated cookie |
|
* @see enableCsrfValidation |
|
*/ |
|
protected function createCsrfCookie($token) |
|
{ |
|
$options = $this->csrfCookie; |
|
return Yii::createObject(array_merge($options, [ |
|
'class' => 'yii\web\Cookie', |
|
'name' => $this->csrfParam, |
|
'value' => $token, |
|
])); |
|
} |
|
|
|
/** |
|
* Performs the CSRF validation. |
|
* |
|
* This method will validate the user-provided CSRF token by comparing it with the one stored in cookie or session. |
|
* This method is mainly called in [[Controller::beforeAction()]]. |
|
* |
|
* Note that the method will NOT perform CSRF validation if [[enableCsrfValidation]] is false or the HTTP method |
|
* is among GET, HEAD or OPTIONS. |
|
* |
|
* @param string $clientSuppliedToken the user-provided CSRF token to be validated. If null, the token will be retrieved from |
|
* the [[csrfParam]] POST field or HTTP header. |
|
* This parameter is available since version 2.0.4. |
|
* @return bool whether CSRF token is valid. If [[enableCsrfValidation]] is false, this method will return true. |
|
*/ |
|
public function validateCsrfToken($clientSuppliedToken = null) |
|
{ |
|
$method = $this->getMethod(); |
|
// only validate CSRF token on non-"safe" methods https://tools.ietf.org/html/rfc2616#section-9.1.1 |
|
if (!$this->enableCsrfValidation || in_array($method, ['GET', 'HEAD', 'OPTIONS'], true)) { |
|
return true; |
|
} |
|
|
|
$trueToken = $this->getCsrfToken(); |
|
|
|
if ($clientSuppliedToken !== null) { |
|
return $this->validateCsrfTokenInternal($clientSuppliedToken, $trueToken); |
|
} |
|
|
|
return $this->validateCsrfTokenInternal($this->getBodyParam($this->csrfParam), $trueToken) |
|
|| $this->validateCsrfTokenInternal($this->getCsrfTokenFromHeader(), $trueToken); |
|
} |
|
|
|
/** |
|
* Validates CSRF token. |
|
* |
|
* @param string $clientSuppliedToken The masked client-supplied token. |
|
* @param string $trueToken The masked true token. |
|
* @return bool |
|
*/ |
|
private function validateCsrfTokenInternal($clientSuppliedToken, $trueToken) |
|
{ |
|
if (!is_string($clientSuppliedToken)) { |
|
return false; |
|
} |
|
|
|
$security = Yii::$app->security; |
|
|
|
return $security->unmaskToken($clientSuppliedToken) === $security->unmaskToken($trueToken); |
|
} |
|
}
|
|
|