/**
* Generate and return the URL for this request.
*
* @return string
*/
public function getUrl()
{
$this->validateMethod();
$graphVersion = FacebookUrlManipulator::forceSlashPrefix($this->graphVersion);
$endpoint = FacebookUrlManipulator::forceSlashPrefix($this->getEndpoint());
$url = $graphVersion . $endpoint;
if ($this->getMethod() !== 'POST') {
$params = $this->getParams();
$url = FacebookUrlManipulator::appendParamsToUrl($url, $params);
}
return $url;
}
/**
* Generates a pagination URL based on a cursor.
*
* @param string $direction The direction of the page: next|previous
*
* @return string|null
*
* @throws FacebookSDKException
*/
public function getPaginationUrl($direction)
{
$this->validateForPagination();
// Do we have a paging URL?
if (!isset($this->metaData['paging'][$direction])) {
return null;
}
$pageUrl = $this->metaData['paging'][$direction];
return FacebookUrlManipulator::baseGraphUrlEndpoint($pageUrl);
}
/**
* Generates a pagination URL based on a cursor.
*
* @param string $direction The direction of the page: next|previous
*
* @return string|null
*
* @throws FacebookSDKException
*/
public function getPaginationUrl($direction)
{
$this->validateForPagination();
// Do we have a paging URL?
if (isset($this->metaData['paging'][$direction])) {
// Graph returns the full URL with all the original params.
// We just want the endpoint though.
$pageUrl = $this->metaData['paging'][$direction];
return FacebookUrlManipulator::baseGraphUrlEndpoint($pageUrl);
}
// Do we have a cursor to work with?
$cursorDirection = $direction === 'next' ? 'after' : 'before';
$cursor = $this->getCursor($cursorDirection);
if (!$cursor) {
return null;
}
// If we don't know the ID of the parent node, this ain't gonna work.
if (!$this->parentEdgeEndpoint) {
return null;
}
// We have the parent node ID, paging cursor & original request.
// These were the ingredients chosen to create the perfect little URL.
$pageUrl = $this->parentEdgeEndpoint . '?' . $cursorDirection . '=' . urlencode($cursor);
// Pull in the original params
$originalUrl = $this->request->getUrl();
$pageUrl = FacebookUrlManipulator::mergeUrlParams($originalUrl, $pageUrl);
return FacebookUrlManipulator::forceSlashPrefix($pageUrl);
}
/**
* Takes a valid code from a login redirect, and returns an AccessToken entity.
*
* @param string|null $redirectUrl The redirect URL.
*
* @return AccessToken|null
*
* @throws FacebookSDKException
*/
public function getAccessToken($redirectUrl = null)
{
if (!($code = $this->getCode())) {
return null;
}
$this->validateCsrf();
$redirectUrl = $redirectUrl ?: $this->urlDetectionHandler->getCurrentUrl();
// At minimum we need to remove the state param
$redirectUrl = FacebookUrlManipulator::removeParamsFromUrl($redirectUrl, ['state']);
return $this->oAuth2Client->getAccessTokenFromCode($code, $redirectUrl);
}
public function testGraphUrlsCanBeTrimmed()
{
$fullGraphUrl = 'https://graph.facebook.com/';
$baseGraphUrl = FacebookUrlManipulator::baseGraphUrlEndpoint($fullGraphUrl);
$this->assertEquals('/', $baseGraphUrl);
$fullGraphUrl = 'https://graph.facebook.com/v1.0/';
$baseGraphUrl = FacebookUrlManipulator::baseGraphUrlEndpoint($fullGraphUrl);
$this->assertEquals('/', $baseGraphUrl);
$fullGraphUrl = 'https://graph.facebook.com/me';
$baseGraphUrl = FacebookUrlManipulator::baseGraphUrlEndpoint($fullGraphUrl);
$this->assertEquals('/me', $baseGraphUrl);
$fullGraphUrl = 'https://graph.beta.facebook.com/me';
$baseGraphUrl = FacebookUrlManipulator::baseGraphUrlEndpoint($fullGraphUrl);
$this->assertEquals('/me', $baseGraphUrl);
$fullGraphUrl = 'https://whatever-they-want.facebook.com/v2.1/me';
$baseGraphUrl = FacebookUrlManipulator::baseGraphUrlEndpoint($fullGraphUrl);
$this->assertEquals('/me', $baseGraphUrl);
$fullGraphUrl = 'https://graph.facebook.com/v5.301/1233?foo=bar';
$baseGraphUrl = FacebookUrlManipulator::baseGraphUrlEndpoint($fullGraphUrl);
$this->assertEquals('/1233?foo=bar', $baseGraphUrl);
}
