Файл: includes/library/auth/Facebook/FacebookSignedRequestFromInputHelper.php
Строк: 169
<?php
/**
* Copyright 2014 Facebook, Inc.
*
* You are hereby granted a non-exclusive, worldwide, royalty-free license to
* use, copy, modify, and distribute this software in source code or binary
* form for use in connection with the web services and APIs provided by
* Facebook.
*
* As with any software that integrates with the Facebook platform, your use
* of this software is subject to the Facebook Developer Principles and
* Policies [http://developers.facebook.com/policy/]. This copyright notice
* shall be included in all copies or substantial portions of the software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
namespace Facebook;
use FacebookEntitiesSignedRequest;
/**
* Class FacebookSignedRequestFromInputHelper
* @package Facebook
*/
abstract class FacebookSignedRequestFromInputHelper
{
/**
* @var FacebookEntitiesSignedRequest|null
*/
protected $signedRequest;
/**
* @var string the app id
*/
protected $appId;
/**
* @var string the app secret
*/
protected $appSecret;
/**
* @var string|null Random string to prevent CSRF.
*/
public $state = null;
/**
* Initialize the helper and process available signed request data.
*
* @param string|null $appId
* @param string|null $appSecret
*/
public function __construct($appId = null, $appSecret = null)
{
$this->appId = FacebookSession::_getTargetAppId($appId);
$this->appSecret = FacebookSession::_getTargetAppSecret($appSecret);
$this->instantiateSignedRequest();
}
/**
* Instantiates a new SignedRequest entity.
*
* @param string|null
*/
public function instantiateSignedRequest($rawSignedRequest = null)
{
$rawSignedRequest = $rawSignedRequest ?: $this->getRawSignedRequest();
if (!$rawSignedRequest) {
return;
}
$this->signedRequest = new SignedRequest($rawSignedRequest, $this->state, $this->appSecret);
}
/**
* Instantiates a FacebookSession from the signed request from input.
*
* @return FacebookSession|null
*/
public function getSession()
{
if ($this->signedRequest && $this->signedRequest->hasOAuthData()) {
return FacebookSession::newSessionFromSignedRequest($this->signedRequest);
}
return null;
}
/**
* Returns the SignedRequest entity.
*
* @return FacebookEntitiesSignedRequest|null
*/
public function getSignedRequest()
{
return $this->signedRequest;
}
/**
* Returns the user_id if available.
*
* @return string|null
*/
public function getUserId()
{
return $this->signedRequest ? $this->signedRequest->getUserId() : null;
}
/**
* Get raw signed request from input.
*
* @return string|null
*/
abstract public function getRawSignedRequest();
/**
* Get raw signed request from GET input.
*
* @return string|null
*/
public function getRawSignedRequestFromGet()
{
if (isset($_GET['signed_request'])) {
return $_GET['signed_request'];
}
return null;
}
/**
* Get raw signed request from POST input.
*
* @return string|null
*/
public function getRawSignedRequestFromPost()
{
if (isset($_POST['signed_request'])) {
return $_POST['signed_request'];
}
return null;
}
/**
* Get raw signed request from cookie set from the Javascript SDK.
*
* @return string|null
*/
public function getRawSignedRequestFromCookie()
{
if (isset($_COOKIE['fbsr_' . $this->appId])) {
return $_COOKIE['fbsr_' . $this->appId];
}
return null;
}
}