103 lines
2.8 KiB
PHP
103 lines
2.8 KiB
PHP
<?php
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namespace OAuth2;
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use OAuth2\Storage\Memory;
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use OAuth2\Storage\ScopeInterface as ScopeStorageInterface;
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/**
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* @see OAuth2\ScopeInterface
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*/
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class Scope implements ScopeInterface
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{
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protected $storage;
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/**
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* @param mixed @storage
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* Either an array of supported scopes, or an instance of OAuth2\Storage\ScopeInterface
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*/
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public function __construct($storage = null)
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{
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if (is_null($storage) || is_array($storage)) {
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$storage = new Memory((array) $storage);
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}
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if (!$storage instanceof ScopeStorageInterface) {
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throw new \InvalidArgumentException("Argument 1 to OAuth2\Scope must be null, an array, or instance of OAuth2\Storage\ScopeInterface");
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}
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$this->storage = $storage;
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}
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/**
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* Check if everything in required scope is contained in available scope.
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*
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* @param $required_scope
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* A space-separated string of scopes.
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*
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* @return
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* TRUE if everything in required scope is contained in available scope,
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* and FALSE if it isn't.
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*
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* @see http://tools.ietf.org/html/rfc6749#section-7
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*
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* @ingroup oauth2_section_7
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*/
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public function checkScope($required_scope, $available_scope)
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{
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$required_scope = explode(' ', trim($required_scope));
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$available_scope = explode(' ', trim($available_scope));
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return (count(array_diff($required_scope, $available_scope)) == 0);
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}
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/**
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* Check if the provided scope exists in storage.
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*
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* @param $scope
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* A space-separated string of scopes.
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*
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* @return
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* TRUE if it exists, FALSE otherwise.
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*/
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public function scopeExists($scope)
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{
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// Check reserved scopes first.
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$scope = explode(' ', trim($scope));
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$reservedScope = $this->getReservedScopes();
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$nonReservedScopes = array_diff($scope, $reservedScope);
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if (count($nonReservedScopes) == 0) {
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return true;
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} else {
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// Check the storage for non-reserved scopes.
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$nonReservedScopes = implode(' ', $nonReservedScopes);
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return $this->storage->scopeExists($nonReservedScopes);
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}
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}
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public function getScopeFromRequest(RequestInterface $request)
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{
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// "scope" is valid if passed in either POST or QUERY
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return $request->request('scope', $request->query('scope'));
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}
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public function getDefaultScope($client_id = null)
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{
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return $this->storage->getDefaultScope($client_id);
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}
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/**
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* Get reserved scopes needed by the server.
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*
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* In case OpenID Connect is used, these scopes must include:
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* 'openid', offline_access'.
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*
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* @return
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* An array of reserved scopes.
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*/
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public function getReservedScopes()
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{
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return array('openid', 'offline_access');
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}
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}
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