cakephp2-php8/cake/libs/cake_request.php

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14 KiB
PHP

<?php
/**
* A class that helps wrap Request information and particulars about a single request.
*
* PHP 5
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @package cake
* @subpackage cake.cake.libs
* @since CakePHP(tm) v 2.0
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
App::import('Core', 'Set');
class CakeRequest implements ArrayAccess {
/**
* Array of parameters parsed from the url.
*
* @var array
*/
public $params = array();
/**
* Array of POST data. Will contain form data as well as uploaded files.
* Will only contain data from inputs that start with 'data'. So
* `<input name="some_input" />` will not end up in data. However,
* `<input name="data[something]" />`
*
* @var array
*/
public $data = array();
/**
* Array of querystring arguments
*
* @var array
*/
public $query = array();
/**
* The url string used for the request.
*
* @var string
*/
public $url;
/**
* Base url path.
*
* @var string
*/
public $base = false;
/**
* webroot path segment for the request.
*
* @var string
*/
public $webroot = '/';
/**
* The full address to the current request
*
* @var string
*/
public $here = null;
/**
* The built in detectors used with `is()` can be modified with `addDetector()`.
*
* There are several ways to specify a detector, see CakeRequest::addDetector() for the
* various formats and ways to define detectors.
*
* @var array
*/
protected $_detectors = array(
'get' => array('env' => 'REQUEST_METHOD', 'value' => 'GET'),
'post' => array('env' => 'REQUEST_METHOD', 'value' => 'POST'),
'put' => array('env' => 'REQUEST_METHOD', 'value' => 'PUT'),
'delete' => array('env' => 'REQUEST_METHOD', 'value' => 'DELETE'),
'head' => array('env' => 'REQUEST_METHOD', 'value' => 'HEAD'),
'ssl' => array('env' => 'HTTPS', 'value' => 1),
'ajax' => array('env' => 'HTTP_X_REQUESTED_WITH', 'value' => 'XMLHttpRequest'),
'flash' => array('env' => 'HTTP_USER_AGENT', 'pattern' => '/^(Shockwave|Adobe) Flash/'),
'mobile' => array('env' => 'HTTP_USER_AGENT', 'options' => array(
'Android', 'AvantGo', 'BlackBerry', 'DoCoMo', 'iPod', 'iPhone',
'J2ME', 'MIDP', 'NetFront', 'Nokia', 'Opera Mini', 'PalmOS', 'PalmSource',
'portalmmm', 'Plucker', 'ReqwirelessWeb', 'SonyEricsson', 'Symbian', 'UP\\.Browser',
'webOS', 'Windows CE', 'Xiino'
))
);
/**
* Constructor
*
* @param string $url Url string to use
* @param array $additionalParams Additional parameters that are melded with other request parameters
* @return void
*/
public function __construct($url = null, $additionalParams = array()) {
$this->base = $this->_base();
if (empty($url)) {
$url = $this->_url();
}
if ($url{0} == '/') {
$url = substr($url, 1);
}
$this->url = $url;
$this->_processPost();
$this->_processGet();
$this->_processFiles();
if (!empty($additionalParams)) {
$this->params = array_merge($this->params, $additionalParams);
}
$this->here = $this->base . '/' . $this->url;
}
/**
* process the post data and set what is there into the object.
*
* @return void
*/
protected function _processPost() {
$this->params['form'] = $_POST;
if (ini_get('magic_quotes_gpc') === '1') {
$this->params['form'] = stripslashes_deep($this->params['form']);
}
if (env('HTTP_X_HTTP_METHOD_OVERRIDE')) {
$this->params['form']['_method'] = env('HTTP_X_HTTP_METHOD_OVERRIDE');
}
if (isset($this->params['form']['_method'])) {
if (!empty($_SERVER)) {
$_SERVER['REQUEST_METHOD'] = $this->params['form']['_method'];
} else {
$_ENV['REQUEST_METHOD'] = $this->params['form']['_method'];
}
unset($this->params['form']['_method']);
}
if (isset($this->params['form']['data'])) {
$this->data = $this->params['form']['data'];
unset($this->params['form']['data']);
}
}
/**
* Process the GET parameters and move things into the object.
*
* @return void
*/
protected function _processGet() {
if (ini_get('magic_quotes_gpc') === '1') {
$query = stripslashes_deep($_GET);
} else {
$query = $_GET;
}
if (strpos($this->url, '?') !== false) {
list(, $querystr) = explode('?', $this->url);
parse_str($querystr, $queryArgs);
$query += $queryArgs;
}
if (isset($this->params['url'])) {
$query = array_merge($this->params['url'], $query);
}
$query['url'] = $this->url;
$this->query = $query;
}
/**
* Returns the REQUEST_URI from the server environment, or, failing that,
* constructs a new one, using the PHP_SELF constant and other variables.
*
* @return string URI
*/
protected function _uri() {
foreach (array('HTTP_X_REWRITE_URL', 'REQUEST_URI', 'argv') as $var) {
if ($uri = env($var)) {
if ($var == 'argv') {
$uri = $uri[0];
}
break;
}
}
$base = trim(Configure::read('App.baseUrl'), '/');
if ($base) {
$uri = preg_replace('/^(?:\/)?(?:' . preg_quote($base, '/') . ')?(?:url=)?/', '', $uri);
}
if (PHP_SAPI == 'isapi') {
$uri = preg_replace('/^(?:\/)?(?:\/)?(?:\?)?(?:url=)?/', '', $uri);
}
if (!empty($uri)) {
if (key($_GET) && strpos(key($_GET), '?') !== false) {
unset($_GET[key($_GET)]);
}
$uri = explode('?', $uri, 2);
if (isset($uri[1])) {
parse_str($uri[1], $_GET);
}
$uri = $uri[0];
} else {
$uri = env('QUERY_STRING');
}
if (is_string($uri) && strpos($uri, 'index.php') !== false) {
list(, $uri) = explode('index.php', $uri, 2);
}
if (empty($uri) || $uri == '/' || $uri == '//') {
return '';
}
return str_replace('//', '/', '/' . $uri);
}
/**
* Returns and sets the $_GET[url] derived from the REQUEST_URI
*
* @return string URL
*/
protected function _url() {
if (empty($_GET['url'])) {
$uri = $this->_uri();
$base = $this->base;
$url = null;
$tmpUri = preg_replace('/^(?:\?)?(?:\/)?/', '', $uri);
$baseDir = trim(dirname($base) . '/', '/');
if ($tmpUri === '/' || $tmpUri == $baseDir || $tmpUri == $base) {
$url = '/';
} else {
$elements = array();
if ($base && strpos($uri, $base) !== false) {
$elements = explode($base, $uri);
} elseif (preg_match('/^[\/\?\/|\/\?|\?\/]/', $uri)) {
$elements = array(1 => preg_replace('/^[\/\?\/|\/\?|\?\/]/', '', $uri));
}
if (!empty($elements[1])) {
$url = $elements[1];
} else {
$url = '/';
}
}
} else {
$url = $_GET['url'];
}
return $url;
}
/**
* Returns a base URL and sets the proper webroot
*
* @return string Base URL
*/
protected function _base() {
$dir = $webroot = null;
$config = Configure::read('App');
extract($config);
if (!$base) {
$base = $this->base;
}
if ($base !== false) {
$this->webroot = $base . '/';
return $base;
}
if (!$baseUrl) {
$replace = array('<', '>', '*', '\'', '"');
$base = str_replace($replace, '', dirname(env('PHP_SELF')));
if ($webroot === 'webroot' && $webroot === basename($base)) {
$base = dirname($base);
}
if ($dir === 'app' && $dir === basename($base)) {
$base = dirname($base);
}
if ($base === DS || $base === '.') {
$base = '';
}
$this->webroot = $base .'/';
return $base;
}
$file = '/' . basename($baseUrl);
$base = dirname($baseUrl);
if ($base === DS || $base === '.') {
$base = '';
}
$this->webroot = $base .'/';
if (!empty($base)) {
if (strpos($this->webroot, $dir) === false) {
$this->webroot .= $dir . '/' ;
}
if (strpos($this->webroot, $webroot) === false) {
$this->webroot .= $webroot . '/';
}
}
return $base . $file;
}
/**
* Process $_FILES and move things into the object.
*
* @return void
*/
protected function _processFiles() {
if (isset($_FILES) && is_array($_FILES)) {
foreach ($_FILES as $name => $data) {
if ($name != 'data') {
$this->params['form'][$name] = $data;
}
}
}
if (isset($_FILES['data'])) {
foreach ($_FILES['data'] as $key => $data) {
foreach ($data as $model => $fields) {
if (is_array($fields)) {
foreach ($fields as $field => $value) {
if (is_array($value)) {
foreach ($value as $k => $v) {
$this->data[$model][$field][$k][$key] = $v;
}
} else {
$this->data[$model][$field][$key] = $value;
}
}
} else {
$this->data[$model][$key] = $fields;
}
}
}
}
}
/**
* Get the IP the client is using, or says they are using.
*
* @param boolean $safe Use safe = false when you think the user might manipulate their HTTP_CLIENT_IP
* header. Setting $safe = false will will also look at HTTP_X_FORWARDED_FOR
* @return void
*/
public function clientIp($safe = true) {
if (!$safe && env('HTTP_X_FORWARDED_FOR') != null) {
$ipaddr = preg_replace('/(?:,.*)/', '', env('HTTP_X_FORWARDED_FOR'));
} else {
if (env('HTTP_CLIENT_IP') != null) {
$ipaddr = env('HTTP_CLIENT_IP');
} else {
$ipaddr = env('REMOTE_ADDR');
}
}
if (env('HTTP_CLIENTADDRESS') != null) {
$tmpipaddr = env('HTTP_CLIENTADDRESS');
if (!empty($tmpipaddr)) {
$ipaddr = preg_replace('/(?:,.*)/', '', $tmpipaddr);
}
}
return trim($ipaddr);
}
/**
* Returns the referer that referred this request.
*
* @param boolean $local Attempt to return a local address. Local addresses do not contain hostnames.
* @return string The referring address for this request.
*/
public function referer($local = false) {
$ref = env('HTTP_REFERER');
$base = '';
if (defined('FULL_BASE_URL')) {
$base = FULL_BASE_URL;
}
if (!empty($ref)) {
if ($local && strpos($ref, $base) === 0) {
$ref = substr($ref, strlen($base));
if ($ref[0] != '/') {
$ref = '/' . $ref;
}
}
return $ref;
}
return '/';
}
/**
* Missing method handler, handles wrapping older style isAjax() type methods
*
* @param string $name The method called
* @param array $params Array of parameters for the method call
* @return mixed
*/
public function __call($name, $params) {
if (strpos($name, 'is') === 0) {
$type = strtolower(substr($name, 2));
return $this->is($type);
}
}
/**
* Magic get method allows access to parsed routing parameters directly on the object.
*
* @param string $name The property being accessed.
* @return mixed Either the value of the parameter or null.
*/
public function __get($name) {
if (isset($this->params[$name])) {
return $this->params[$name];
}
return null;
}
/**
* Check whether or not a Request is a certain type. Uses the built in detection rules
* as well as additional rules defined with CakeRequest::addDetector(). Any detector can be called
* with `is($type)` or `is$Type()`.
*
* @param string $type The type of request you want to check.
* @return boolean Whether or not the request is the type you are checking.
*/
public function is($type) {
$type = strtolower($type);
if (!isset($this->_detectors[$type])) {
return false;
}
$detect = $this->_detectors[$type];
if (isset($detect['env'])) {
if (isset($detect['value'])) {
return env($detect['env']) == $detect['value'];
}
if (isset($detect['pattern'])) {
return (bool)preg_match($detect['pattern'], env($detect['env']));
}
if (isset($detect['options'])) {
$pattern = '/' . implode('|', $detect['options']) . '/i';
return (bool)preg_match($pattern, env($detect['env']));
}
}
if (isset($detect['callback']) && is_callable($detect['callback'])) {
return call_user_func($detect['callback'], $this);
}
return false;
}
/**
* Add a new detector to the list of detectors that a request can use.
* There are several different formats and types of detectors that can be set.
*
* ### Environment value comparison
*
* An environment value comparison, compares a value fetched from `env()` to a known value
* the environment value is equality checked against the provided value.
*
* e.g `addDetector('post', array('env' => 'REQUEST_METHOD', 'value' => 'POST'))`
*
* ### Pattern value comparison
*
* Pattern value comparison allows you to compare a value fetched from `env()` to a regular expression.
*
* e.g `addDetector('iphone', array('env' => 'HTTP_USER_AGENT', 'pattern' => '/iPhone/i'));
*
* ### Option based comparison
*
* Option based comparisons use a list of options to create a regular expression. Subsequent calls
* to add an already defined options detector will merge the options.
*
* e.g `addDetector('mobile', array('env' => 'HTTP_USER_AGENT', 'options' => array('Fennec')));`
*
* ### Callback detectors
*
* Callback detectors allow you to provide a 'callback' type to handle the check. The callback will
* recieve the request object as its only parameter.
*
* e.g `addDetector('custom', array('callback' => array('SomeClass', 'somemethod')));`
*
* @param string $name The name of the detector.
* @param array $options The options for the detector definition. See above.
* @return void
*/
public function addDetector($name, $options) {
if (isset($this->_detectors[$name]) && isset($options['options'])) {
$options = Set::merge($this->_detectors[$name], $options);
}
$this->_detectors[$name] = $options;
}
/**
* Add parameters to the request's parsed parameter set.
*
* @param array $params Array of parameters to merge in
* @return void
*/
public function addParams($params) {
$this->params = array_merge($this->params, $params);
}
/**
* Array access read implementation
*
* @param string $name Name of the key being accessed.
* @return mixed
*/
public function offsetGet($name) {
if (isset($this->params[$name])) {
return $this->params[$name];
}
if ($name == 'url') {
return $this->query;
}
if ($name == 'data') {
return $this->data;
}
return null;
}
/**
* Array access write implementation
*
* @param string $name Name of the key being written
* @param mixed $value The value being written.
* @return void
*/
public function offsetSet($name, $value) {
$this->params[$name] = $value;
}
/**
* Array access isset() implementation
*
* @param string $name thing to check.
* @return boolean
*/
public function offsetExists($name) {
return isset($this->params[$name]);
}
/**
* Array access unset() implementation
*
* @param $name Name to unset.
* @return void
*/
public function offsetUnset($name) {
unset($this->params[$name]);
}
}