/**
* Given a string list of scopes, return an array of valid Scope entities keyed by name.
*
* @param string $scopes
* @param string $redirectUri
* @param null|string $clientId
* @param null|string $grantTypeIdentifier
* @return null|\Atrauzzi\Oauth2Server\Domain\Entity\Scope[]
* @throws \Atrauzzi\Oauth2Server\Exception\InvalidRequest
* @throws \Atrauzzi\Oauth2Server\Exception\InvalidScope
*/
public function findValid($scopes, $grantTypeIdentifier = null, $clientId = null, $redirectUri = null)
{
if (!$scopes && !$this->config->scopeParamRequired()) {
return null;
}
$requestedScopes = [];
foreach (explode($this->config->getScopeDelimiter(), $scopes) as $scope) {
if ($scope = trim($scope)) {
$requestedScopes[] = $scope;
}
}
$requestedScopes = empty($requestedScopes) ? $this->config->getDefaultScopes() : $requestedScopes;
if ($this->config->scopeParamRequired() && empty($requestedScopes)) {
throw new InvalidRequest('scope');
}
$validScopes = $this->scopeRepository->findByNames($requestedScopes, $clientId, $grantTypeIdentifier);
$invalidScopes = array_diff($requestedScopes ?: [], array_keys($validScopes));
if (!empty($invalidScopes)) {
throw new InvalidScope($invalidScopes, $redirectUri);
}
return $validScopes;
}
