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<?php
/**
* ownCloud - Request
*
* @author Thomas Tanghus
* @copyright 2013 Thomas Tanghus (thomas@tanghus.net)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\AppFramework\Http;
/**
* Class for accessing variables in the request.
* This class provides an immutable object with request variables.
*/
class Request implements \ArrayAccess, \Countable {
protected $items = array();
protected $allowedKeys = array(
'get',
'post',
'files',
'server',
'env',
'session',
'cookies',
'urlParams',
'params',
'parameters',
'method'
);
/**
* @param array $vars An associative array with the following optional values:
* @param array 'params' the parsed json array
* @param array 'urlParams' the parameters which were matched from the URL
* @param array 'get' the $_GET array
* @param array 'post' the $_POST array
* @param array 'files' the $_FILES array
* @param array 'server' the $_SERVER array
* @param array 'env' the $_ENV array
* @param array 'session' the $_SESSION array
* @param array 'cookies' the $_COOKIE array
* @param string 'method' the request method (GET, POST etc)
* @see http://www.php.net/manual/en/reserved.variables.php
*/
public function __construct(array $vars=array()) {
foreach($this->allowedKeys as $name) {
$this->items[$name] = isset($vars[$name])
? $vars[$name]
: array();
}
$this->items['parameters'] = array_merge(
$this->items['params'],
$this->items['get'],
$this->items['post'],
$this->items['urlParams']
);
}
// Countable method.
public function count() {
return count(array_keys($this->items['parameters']));
}
/**
* ArrayAccess methods
*
* Gives access to the combined GET, POST and urlParams arrays
*
* Examples:
*
* $var = $request['myvar'];
*
* or
*
* if(!isset($request['myvar']) {
* // Do something
* }
*
* $request['myvar'] = 'something'; // This throws an exception.
*
* @param string $offset The key to lookup
* @return string|null
*/
public function offsetExists($offset) {
return isset($this->items['parameters'][$offset]);
}
/**
* @see offsetExists
*/
public function offsetGet($offset) {
return isset($this->items['parameters'][$offset])
? $this->items['parameters'][$offset]
: null;
}
/**
* @see offsetExists
*/
public function offsetSet($offset, $value) {
throw new \RuntimeException('You cannot change the contents of the request object');
}
/**
* @see offsetExists
*/
public function offsetUnset($offset) {
throw new \RuntimeException('You cannot change the contents of the request object');
}
// Magic property accessors
public function __set($name, $value) {
throw new \RuntimeException('You cannot change the contents of the request object');
}
/**
* Access request variables by method and name.
* Examples:
*
* $request->post['myvar']; // Only look for POST variables
* $request->myvar; or $request->{'myvar'}; or $request->{$myvar}
* Looks in the combined GET, POST and urlParams array.
*
* if($request->method !== 'POST') {
* throw new Exception('This function can only be invoked using POST');
* }
*
* @param string $name The key to look for.
* @return mixed|null
*/
public function __get($name) {
switch($name) {
case 'get':
case 'post':
case 'files':
case 'server':
case 'env':
case 'session':
case 'cookies':
case 'parameters':
case 'params':
case 'urlParams':
return isset($this->items[$name])
? $this->items[$name]
: null;
break;
case 'method':
return $this->items['method'];
break;
default;
return isset($this[$name])
? $this[$name]
: null;
break;
}
}
public function __isset($name) {
return isset($this->items['parameters'][$name]);
}
public function __unset($id) {
throw new \RunTimeException('You cannot change the contents of the request object');
}
/**
* Returns the value for a specific http header.
*
* This method returns null if the header did not exist.
*
* @param string $name
* @return string
*/
public function getHeader($name) {
$name = strtoupper(str_replace(array('-'),array('_'),$name));
if (isset($this->server['HTTP_' . $name])) {
return $this->server['HTTP_' . $name];
}
// There's a few headers that seem to end up in the top-level
// server array.
switch($name) {
case 'CONTENT_TYPE' :
case 'CONTENT_LENGTH' :
if (isset($this->server[$name])) {
return $this->server[$name];
}
break;
}
return null;
}
}
|
