* @since 2.0 */ class Request extends \yii\base\Request { /** * @var boolean whether cookies should be validated to ensure they are not tampered. Defaults to true. */ public $enableCookieValidation = true; /** * @var string the secret key used for cookie validation. If not set, a random key will be generated and used. */ public $cookieValidationKey; /** * @var string|boolean the name of the POST parameter that is used to indicate if a request is a PUT or DELETE * request tunneled through POST. If false, it means disabling REST request tunneled through POST. * Default to '_method'. * @see getRequestMethod * @see getRestParams */ public $restVar = '_method'; private $_cookies; /** * Returns the method of the current request (e.g. GET, POST, HEAD, PUT, DELETE). * @return string request method, such as GET, POST, HEAD, PUT, DELETE. * The value returned is turned into upper case. */ public function getRequestMethod() { if ($this->restVar !== false && isset($_POST[$this->restVar])) { return strtoupper($_POST[$this->restVar]); } else { return isset($_SERVER['REQUEST_METHOD']) ? strtoupper($_SERVER['REQUEST_METHOD']) : 'GET'; } } /** * Returns whether this is a POST request. * @return boolean whether this is a POST request. */ public function getIsPostRequest() { return isset($_SERVER['REQUEST_METHOD']) && !strcasecmp($_SERVER['REQUEST_METHOD'], 'POST'); } /** * Returns whether this is a DELETE request. * @return boolean whether this is a DELETE request. */ public function getIsDeleteRequest() { return $this->getRequestMethod() === 'DELETE'; } /** * Returns whether this is a PUT request. * @return boolean whether this is a PUT request. */ public function getIsPutRequest() { return $this->getRequestMethod() === 'PUT'; } /** * Returns whether this is an AJAX (XMLHttpRequest) request. * @return boolean whether this is an AJAX (XMLHttpRequest) request. */ public function getIsAjaxRequest() { return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] === 'XMLHttpRequest'; } /** * Returns whether this is an Adobe Flash or Flex request. * @return boolean whether this is an Adobe Flash or Adobe Flex request. */ public function getIsFlashRequest() { return isset($_SERVER['HTTP_USER_AGENT']) && (stripos($_SERVER['HTTP_USER_AGENT'], 'Shockwave') !== false || stripos($_SERVER['HTTP_USER_AGENT'], 'Flash') !== false); } private $_restParams; /** * Returns the request parameters for the RESTful request. * @return array the RESTful request parameters * @see getRequestMethod */ public function getRestParams() { if ($this->_restParams === null) { if ($this->restVar !== false && isset($_POST[$this->restVar])) { $this->_restParams = $_POST; } else { $this->_restParams = array(); if (function_exists('mb_parse_str')) { mb_parse_str($this->getRawBody(), $this->_restParams); } else { parse_str($this->getRawBody(), $this->_restParams); } } } return $this->_restParams; } private $_rawBody; /** * Returns the raw HTTP request body. * @return string the request body */ public function getRawBody() { if ($this->_rawBody === null) { $this->_rawBody = file_get_contents('php://input'); } return $this->_rawBody; } /** * Sets the RESTful parameters. * @param array $values the RESTful parameters (name-value pairs) */ public function setRestParams($values) { $this->_restParams = $values; } /** * Returns the named RESTful parameter value. * @param string $name the parameter name * @param mixed $defaultValue the default parameter value if the parameter does not exist. * @return mixed the parameter value */ public function getRestParam($name, $defaultValue = null) { $params = $this->getRestParams(); return isset($params[$name]) ? $params[$name] : $defaultValue; } /** * Returns the named GET parameter value. * If the GET parameter does not exist, the second parameter to this method will be returned. * @param string $name the GET parameter name * @param mixed $defaultValue the default parameter value if the GET parameter does not exist. * @return mixed the GET parameter value * @see getPost */ public function getParam($name, $defaultValue = null) { return isset($_GET[$name]) ? $_GET[$name] : $defaultValue; } /** * Returns the named POST parameter value. * If the POST parameter does not exist, the second parameter to this method will be returned. * @param string $name the POST parameter name * @param mixed $defaultValue the default parameter value if the POST parameter does not exist. * @return mixed the POST parameter value * @see getParam */ public function getPost($name, $defaultValue = null) { return isset($_POST[$name]) ? $_POST[$name] : $defaultValue; } /** * Returns the named DELETE parameter value. * @param string $name the DELETE parameter name * @param mixed $defaultValue the default parameter value if the DELETE parameter does not exist. * @return mixed the DELETE parameter value */ public function getDelete($name, $defaultValue = null) { return $this->getIsDeleteRequest() ? $this->getRestParam($name, $defaultValue) : null; } /** * Returns the named PUT parameter value. * @param string $name the PUT parameter name * @param mixed $defaultValue the default parameter value if the PUT parameter does not exist. * @return mixed the PUT parameter value */ public function getPut($name, $defaultValue = null) { return $this->getIsPutRequest() ? $this->getRestParam($name, $defaultValue) : null; } private $_hostInfo; /** * Returns the schema and host part of the current request URL. * The returned URL does not have an ending slash. * By default this is determined based on the user request information. * You may explicitly specify it by setting the [[setHostInfo()|hostInfo]] property. * @return string schema and hostname part (with port number if needed) of the request URL (e.g. `http://www.yiiframework.com`) * @see setHostInfo */ public function getHostInfo() { if ($this->_hostInfo === null) { $secure = $this->getIsSecureConnection(); $http = $secure ? 'https' : 'http'; if (isset($_SERVER['HTTP_HOST'])) { $this->_hostInfo = $http . '://' . $_SERVER['HTTP_HOST']; } else { $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 $value the schema and host part of the application URL. The trailing slashes will be removed. */ public function setHostInfo($value) { $this->_hostInfo = rtrim($value, '/'); } 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) { $scriptName = basename($_SERVER['SCRIPT_FILENAME']); if (basename($_SERVER['SCRIPT_NAME']) === $scriptName) { $this->_scriptUrl = $_SERVER['SCRIPT_NAME']; } elseif (basename($_SERVER['PHP_SELF']) === $scriptName) { $this->_scriptUrl = $_SERVER['PHP_SELF']; } elseif (isset($_SERVER['ORIG_SCRIPT_NAME']) && basename($_SERVER['ORIG_SCRIPT_NAME']) === $scriptName) { $this->_scriptUrl = $_SERVER['ORIG_SCRIPT_NAME']; } elseif (($pos = strpos($_SERVER['PHP_SELF'], '/' . $scriptName)) !== false) { $this->_scriptUrl = substr($_SERVER['SCRIPT_NAME'], 0, $pos) . '/' . $scriptName; } elseif (isset($_SERVER['DOCUMENT_ROOT']) && strpos($_SERVER['SCRIPT_FILENAME'], $_SERVER['DOCUMENT_ROOT']) === 0) { $this->_scriptUrl = str_replace('\\', '/', str_replace($_SERVER['DOCUMENT_ROOT'], '', $_SERVER['SCRIPT_FILENAME'])); } 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) { $this->_scriptUrl = '/' . trim($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) { $this->_pathInfo = trim($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 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 decoded. * @throws InvalidConfigException if the path info cannot be determined due to unexpected server configuration */ protected function resolvePathInfo() { $pathInfo = $this->getRequestUri(); if (($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($baseUrl)); } elseif (strpos($_SERVER['PHP_SELF'], $scriptUrl) === 0) { $pathInfo = substr($_SERVER['PHP_SELF'], strlen($scriptUrl)); } else { throw new InvalidConfigException('Unable to determine the path info of the current request.'); } return trim($pathInfo, '/'); } /** * Returns the currently requested URL. * This is a shortcut to the concatenation of [[hostInfo]] and [[requestUri]]. * @return string the currently requested URL. */ public function getUrl() { return $this->getHostInfo() . $this->getRequestUri(); } private $_requestUri; /** * Returns the portion after [[hostInfo]] for the currently requested URL. * This refers to the portion that is after the [[hostInfo]] part. It includes the [[queryString]] part if any. * The implementation of this method referenced Zend_Controller_Request_Http in Zend Framework. * @return string the request URI portion for the currently requested URL. * Note that the URI returned is URL-encoded. * @throws InvalidConfigException if the request URI cannot be determined due to unusual server configuration */ public function getRequestUri() { if ($this->_requestUri === null) { $this->_requestUri = $this->resolveRequestUri(); } return $this->_requestUri; } /** * Sets the currently requested URI. * The URI must refer to the portion that is after [[hostInfo]]. * Note that the URI should be URL-encoded. * @param string $value the request URI to be set */ public function setRequestUri($value) { $this->_requestUri = $value; } /** * Resolves the request URI portion for the currently requested URL. * This refers to the portion that is after the [[hostInfo]] part. It includes the [[queryString]] part if any. * The implementation of this method referenced Zend_Controller_Request_Http in Zend Framework. * @return string|boolean the request URI portion for the currently requested URL. * Note that the URI returned is URL-encoded. * @throws InvalidConfigException if the request URI cannot be determined due to unusual server configuration */ protected function resolveRequestUri() { if (isset($_SERVER['HTTP_X_REWRITE_URL'])) { // IIS $requestUri = $_SERVER['HTTP_X_REWRITE_URL']; } elseif (isset($_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']) ? $_SERVER['QUERY_STRING'] : ''; } /** * Return if the request is sent via secure channel (https). * @return boolean if the request is sent via secure channel (https) */ public function getIsSecureConnection() { return !empty($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'off'); } /** * Returns the server name. * @return string server name */ public function getServerName() { return $_SERVER['SERVER_NAME']; } /** * Returns the server port number. * @return integer server port number */ public function getServerPort() { return (int)$_SERVER['SERVER_PORT']; } /** * Returns the URL referrer, null if not present * @return string URL referrer, null if not present */ public function getReferrer() { return isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : null; } /** * Returns the user agent, null if not present. * @return string user agent, null if not present */ public function getUserAgent() { return isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : null; } /** * Returns the user IP address. * @return string user IP address */ public function getUserHostAddress() { return isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '127.0.0.1'; } /** * Returns the user host name, null if it cannot be determined. * @return string user host name, null if cannot be determined */ public function getUserHost() { return isset($_SERVER['REMOTE_HOST']) ? $_SERVER['REMOTE_HOST'] : null; } /** * Returns user browser accept types, null if not present. * @return string user browser accept types, null if not present */ public function getAcceptTypes() { return isset($_SERVER['HTTP_ACCEPT']) ? $_SERVER['HTTP_ACCEPT'] : null; } private $_port; /** * Returns the port to use for insecure requests. * Defaults to 80, or the port specified by the server if the current * request is insecure. * @return integer port number for insecure requests. * @see setPort */ public function getPort() { if ($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 integer $value port number. */ public function setPort($value) { if ($value != $this->_port) { $this->_port = (int)$value; $this->_hostInfo = null; } } private $_securePort; /** * Returns the port to use for secure requests. * Defaults to 443, or the port specified by the server if the current * request is secure. * @return integer port number for secure requests. * @see setSecurePort */ public function getSecurePort() { if ($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 integer $value port number. */ public function setSecurePort($value) { if ($value != $this->_securePort) { $this->_securePort = (int)$value; $this->_hostInfo = null; } } private $_preferredLanguages; /** * Returns the user preferred languages. * The languages returned are ordered by user's preference, starting with the language that the user * prefers the most. * @return string the user preferred languages. An empty array may be returned if the user has no preference. */ public function getPreferredLanguages() { if ($this->_preferredLanguages === null) { if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) && ($n = preg_match_all('/([\w\-_]+)\s*(;\s*q\s*=\s*(\d*\.\d*))?/', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $matches)) > 0) { $languages = array(); for ($i = 0; $i < $n; ++$i) { $languages[$matches[1][$i]] = empty($matches[3][$i]) ? 1.0 : floatval($matches[3][$i]); } arsort($languages); $this->_preferredLanguages = array_keys($languages); } else { $this->_preferredLanguages = array(); } } return $this->_preferredLanguages; } /** * Returns the language most preferred by the user. * @return string|boolean the language most preferred by the user. If the user has no preference, false * will be returned. */ public function getPreferredLanguage() { $languages = $this->getPreferredLanguages(); return isset($languages[0]) ? $languages[0] : false; } /** * Returns the cookie collection. * Through the returned cookie collection, you may access a cookie using the following syntax: * * ~~~ * $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(array( 'enableValidation' => $this->enableCookieValidation, 'validationKey' => $this->cookieValidationKey, )); } return $this->_cookies; } }