diff options
Diffstat (limited to 'library/oauth2/src/OAuth2')
67 files changed, 8358 insertions, 0 deletions
diff --git a/library/oauth2/src/OAuth2/Autoloader.php b/library/oauth2/src/OAuth2/Autoloader.php new file mode 100644 index 000000000..ecfb6ba75 --- /dev/null +++ b/library/oauth2/src/OAuth2/Autoloader.php @@ -0,0 +1,48 @@ +<?php + +namespace OAuth2; + +/** + * Autoloads OAuth2 classes + * + * @author Brent Shaffer <bshafs at gmail dot com> + * @license MIT License + */ +class Autoloader +{ + private $dir; + + public function __construct($dir = null) + { + if (is_null($dir)) { + $dir = dirname(__FILE__).'/..'; + } + $this->dir = $dir; + } + /** + * Registers OAuth2\Autoloader as an SPL autoloader. + */ + public static function register($dir = null) + { + ini_set('unserialize_callback_func', 'spl_autoload_call'); + spl_autoload_register(array(new self($dir), 'autoload')); + } + + /** + * Handles autoloading of classes. + * + * @param string $class A class name. + * + * @return boolean Returns true if the class has been loaded + */ + public function autoload($class) + { + if (0 !== strpos($class, 'OAuth2')) { + return; + } + + if (file_exists($file = $this->dir.'/'.str_replace('\\', '/', $class).'.php')) { + require $file; + } + } +} diff --git a/library/oauth2/src/OAuth2/ClientAssertionType/ClientAssertionTypeInterface.php b/library/oauth2/src/OAuth2/ClientAssertionType/ClientAssertionTypeInterface.php new file mode 100644 index 000000000..29c7171b5 --- /dev/null +++ b/library/oauth2/src/OAuth2/ClientAssertionType/ClientAssertionTypeInterface.php @@ -0,0 +1,15 @@ +<?php + +namespace OAuth2\ClientAssertionType; + +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * Interface for all OAuth2 Client Assertion Types + */ +interface ClientAssertionTypeInterface +{ + public function validateRequest(RequestInterface $request, ResponseInterface $response); + public function getClientId(); +} diff --git a/library/oauth2/src/OAuth2/ClientAssertionType/HttpBasic.php b/library/oauth2/src/OAuth2/ClientAssertionType/HttpBasic.php new file mode 100644 index 000000000..0ecb7e18d --- /dev/null +++ b/library/oauth2/src/OAuth2/ClientAssertionType/HttpBasic.php @@ -0,0 +1,123 @@ +<?php + +namespace OAuth2\ClientAssertionType; + +use OAuth2\Storage\ClientCredentialsInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * Validate a client via Http Basic authentication + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class HttpBasic implements ClientAssertionTypeInterface +{ + private $clientData; + + protected $storage; + protected $config; + + /** + * @param OAuth2\Storage\ClientCredentialsInterface $clientStorage REQUIRED Storage class for retrieving client credentials information + * @param array $config OPTIONAL Configuration options for the server + * <code> + * $config = array( + * 'allow_credentials_in_request_body' => true, // whether to look for credentials in the POST body in addition to the Authorize HTTP Header + * 'allow_public_clients' => true // if true, "public clients" (clients without a secret) may be authenticated + * ); + * </code> + */ + public function __construct(ClientCredentialsInterface $storage, array $config = array()) + { + $this->storage = $storage; + $this->config = array_merge(array( + 'allow_credentials_in_request_body' => true, + 'allow_public_clients' => true, + ), $config); + } + + public function validateRequest(RequestInterface $request, ResponseInterface $response) + { + if (!$clientData = $this->getClientCredentials($request, $response)) { + return false; + } + + if (!isset($clientData['client_id'])) { + throw new \LogicException('the clientData array must have "client_id" set'); + } + + if (!isset($clientData['client_secret']) || $clientData['client_secret'] == '') { + if (!$this->config['allow_public_clients']) { + $response->setError(400, 'invalid_client', 'client credentials are required'); + + return false; + } + + if (!$this->storage->isPublicClient($clientData['client_id'])) { + $response->setError(400, 'invalid_client', 'This client is invalid or must authenticate using a client secret'); + + return false; + } + } elseif ($this->storage->checkClientCredentials($clientData['client_id'], $clientData['client_secret']) === false) { + $response->setError(400, 'invalid_client', 'The client credentials are invalid'); + + return false; + } + + $this->clientData = $clientData; + + return true; + } + + public function getClientId() + { + return $this->clientData['client_id']; + } + + /** + * Internal function used to get the client credentials from HTTP basic + * auth or POST data. + * + * According to the spec (draft 20), the client_id can be provided in + * the Basic Authorization header (recommended) or via GET/POST. + * + * @return + * A list containing the client identifier and password, for example + * @code + * return array( + * "client_id" => CLIENT_ID, // REQUIRED the client id + * "client_secret" => CLIENT_SECRET, // OPTIONAL the client secret (may be omitted for public clients) + * ); + * @endcode + * + * @see http://tools.ietf.org/html/rfc6749#section-2.3.1 + * + * @ingroup oauth2_section_2 + */ + public function getClientCredentials(RequestInterface $request, ResponseInterface $response = null) + { + if (!is_null($request->headers('PHP_AUTH_USER')) && !is_null($request->headers('PHP_AUTH_PW'))) { + return array('client_id' => $request->headers('PHP_AUTH_USER'), 'client_secret' => $request->headers('PHP_AUTH_PW')); + } + + if ($this->config['allow_credentials_in_request_body']) { + // Using POST for HttpBasic authorization is not recommended, but is supported by specification + if (!is_null($request->request('client_id'))) { + /** + * client_secret can be null if the client's password is an empty string + * @see http://tools.ietf.org/html/rfc6749#section-2.3.1 + */ + + return array('client_id' => $request->request('client_id'), 'client_secret' => $request->request('client_secret')); + } + } + + if ($response) { + $message = $this->config['allow_credentials_in_request_body'] ? ' or body' : ''; + $response->setError(400, 'invalid_client', 'Client credentials were not found in the headers'.$message); + } + + return null; + } +} diff --git a/library/oauth2/src/OAuth2/Controller/AuthorizeController.php b/library/oauth2/src/OAuth2/Controller/AuthorizeController.php new file mode 100644 index 000000000..a9a722587 --- /dev/null +++ b/library/oauth2/src/OAuth2/Controller/AuthorizeController.php @@ -0,0 +1,388 @@ +<?php + +namespace OAuth2\Controller; + +use OAuth2\Storage\ClientInterface; +use OAuth2\ScopeInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; +use OAuth2\Scope; + +/** + * @see OAuth2\Controller\AuthorizeControllerInterface + */ +class AuthorizeController implements AuthorizeControllerInterface +{ + private $scope; + private $state; + private $client_id; + private $redirect_uri; + private $response_type; + + protected $clientStorage; + protected $responseTypes; + protected $config; + protected $scopeUtil; + + /** + * @param OAuth2\Storage\ClientInterface $clientStorage REQUIRED Instance of OAuth2\Storage\ClientInterface to retrieve client information + * @param array $responseTypes OPTIONAL Array of OAuth2\ResponseType\ResponseTypeInterface objects. Valid array + * keys are "code" and "token" + * @param array $config OPTIONAL Configuration options for the server + * <code> + * $config = array( + * 'allow_implicit' => false, // if the controller should allow the "implicit" grant type + * 'enforce_state' => true // if the controller should require the "state" parameter + * 'require_exact_redirect_uri' => true, // if the controller should require an exact match on the "redirect_uri" parameter + * 'redirect_status_code' => 302, // HTTP status code to use for redirect responses + * ); + * </code> + * @param OAuth2\ScopeInterface $scopeUtil OPTIONAL Instance of OAuth2\ScopeInterface to validate the requested scope + */ + public function __construct(ClientInterface $clientStorage, array $responseTypes = array(), array $config = array(), ScopeInterface $scopeUtil = null) + { + $this->clientStorage = $clientStorage; + $this->responseTypes = $responseTypes; + $this->config = array_merge(array( + 'allow_implicit' => false, + 'enforce_state' => true, + 'require_exact_redirect_uri' => true, + 'redirect_status_code' => 302, + ), $config); + + if (is_null($scopeUtil)) { + $scopeUtil = new Scope(); + } + $this->scopeUtil = $scopeUtil; + } + + public function handleAuthorizeRequest(RequestInterface $request, ResponseInterface $response, $is_authorized, $user_id = null) + { + if (!is_bool($is_authorized)) { + throw new \InvalidArgumentException('Argument "is_authorized" must be a boolean. This method must know if the user has granted access to the client.'); + } + + // We repeat this, because we need to re-validate. The request could be POSTed + // by a 3rd-party (because we are not internally enforcing NONCEs, etc) + if (!$this->validateAuthorizeRequest($request, $response)) { + return; + } + + // If no redirect_uri is passed in the request, use client's registered one + if (empty($this->redirect_uri)) { + $clientData = $this->clientStorage->getClientDetails($this->client_id); + $registered_redirect_uri = $clientData['redirect_uri']; + } + + // the user declined access to the client's application + if ($is_authorized === false) { + $redirect_uri = $this->redirect_uri ?: $registered_redirect_uri; + $this->setNotAuthorizedResponse($request, $response, $redirect_uri, $user_id); + + return; + } + + // build the parameters to set in the redirect URI + if (!$params = $this->buildAuthorizeParameters($request, $response, $user_id)) { + return; + } + + $authResult = $this->responseTypes[$this->response_type]->getAuthorizeResponse($params, $user_id); + + list($redirect_uri, $uri_params) = $authResult; + + if (empty($redirect_uri) && !empty($registered_redirect_uri)) { + $redirect_uri = $registered_redirect_uri; + } + + $uri = $this->buildUri($redirect_uri, $uri_params); + + // return redirect response + $response->setRedirect($this->config['redirect_status_code'], $uri); + } + + protected function setNotAuthorizedResponse(RequestInterface $request, ResponseInterface $response, $redirect_uri, $user_id = null) + { + $error = 'access_denied'; + $error_message = 'The user denied access to your application'; + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, $this->state, $error, $error_message); + } + + /* + * We have made this protected so this class can be extended to add/modify + * these parameters + */ + protected function buildAuthorizeParameters($request, $response, $user_id) + { + // @TODO: we should be explicit with this in the future + $params = array( + 'scope' => $this->scope, + 'state' => $this->state, + 'client_id' => $this->client_id, + 'redirect_uri' => $this->redirect_uri, + 'response_type' => $this->response_type, + ); + + return $params; + } + + public function validateAuthorizeRequest(RequestInterface $request, ResponseInterface $response) + { + // Make sure a valid client id was supplied (we can not redirect because we were unable to verify the URI) + if (!$client_id = $request->query('client_id', $request->request('client_id'))) { + // We don't have a good URI to use + $response->setError(400, 'invalid_client', "No client id supplied"); + + return false; + } + + // Get client details + if (!$clientData = $this->clientStorage->getClientDetails($client_id)) { + $response->setError(400, 'invalid_client', 'The client id supplied is invalid'); + + return false; + } + + $registered_redirect_uri = isset($clientData['redirect_uri']) ? $clientData['redirect_uri'] : ''; + + // Make sure a valid redirect_uri was supplied. If specified, it must match the clientData URI. + // @see http://tools.ietf.org/html/rfc6749#section-3.1.2 + // @see http://tools.ietf.org/html/rfc6749#section-4.1.2.1 + // @see http://tools.ietf.org/html/rfc6749#section-4.2.2.1 + if ($supplied_redirect_uri = $request->query('redirect_uri', $request->request('redirect_uri'))) { + // validate there is no fragment supplied + $parts = parse_url($supplied_redirect_uri); + if (isset($parts['fragment']) && $parts['fragment']) { + $response->setError(400, 'invalid_uri', 'The redirect URI must not contain a fragment'); + + return false; + } + + // validate against the registered redirect uri(s) if available + if ($registered_redirect_uri && !$this->validateRedirectUri($supplied_redirect_uri, $registered_redirect_uri)) { + $response->setError(400, 'redirect_uri_mismatch', 'The redirect URI provided is missing or does not match', '#section-3.1.2'); + + return false; + } + $redirect_uri = $supplied_redirect_uri; + } else { + // use the registered redirect_uri if none has been supplied, if possible + if (!$registered_redirect_uri) { + $response->setError(400, 'invalid_uri', 'No redirect URI was supplied or stored'); + + return false; + } + + if (count(explode(' ', $registered_redirect_uri)) > 1) { + $response->setError(400, 'invalid_uri', 'A redirect URI must be supplied when multiple redirect URIs are registered', '#section-3.1.2.3'); + + return false; + } + $redirect_uri = $registered_redirect_uri; + } + + // Select the redirect URI + $response_type = $request->query('response_type', $request->request('response_type')); + + // for multiple-valued response types - make them alphabetical + if (false !== strpos($response_type, ' ')) { + $types = explode(' ', $response_type); + sort($types); + $response_type = ltrim(implode(' ', $types)); + } + + $state = $request->query('state', $request->request('state')); + + // type and client_id are required + if (!$response_type || !in_array($response_type, $this->getValidResponseTypes())) { + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, $state, 'invalid_request', 'Invalid or missing response type', null); + + return false; + } + + if ($response_type == self::RESPONSE_TYPE_AUTHORIZATION_CODE) { + if (!isset($this->responseTypes['code'])) { + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, $state, 'unsupported_response_type', 'authorization code grant type not supported', null); + + return false; + } + if (!$this->clientStorage->checkRestrictedGrantType($client_id, 'authorization_code')) { + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, $state, 'unauthorized_client', 'The grant type is unauthorized for this client_id', null); + + return false; + } + if ($this->responseTypes['code']->enforceRedirect() && !$redirect_uri) { + $response->setError(400, 'redirect_uri_mismatch', 'The redirect URI is mandatory and was not supplied'); + + return false; + } + } else { + if (!$this->config['allow_implicit']) { + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, $state, 'unsupported_response_type', 'implicit grant type not supported', null); + + return false; + } + if (!$this->clientStorage->checkRestrictedGrantType($client_id, 'implicit')) { + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, $state, 'unauthorized_client', 'The grant type is unauthorized for this client_id', null); + + return false; + } + } + + // validate requested scope if it exists + $requestedScope = $this->scopeUtil->getScopeFromRequest($request); + + if ($requestedScope) { + // restrict scope by client specific scope if applicable, + // otherwise verify the scope exists + $clientScope = $this->clientStorage->getClientScope($client_id); + if ((empty($clientScope) && !$this->scopeUtil->scopeExists($requestedScope)) + || (!empty($clientScope) && !$this->scopeUtil->checkScope($requestedScope, $clientScope))) { + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, $state, 'invalid_scope', 'An unsupported scope was requested', null); + + return false; + } + } else { + // use a globally-defined default scope + $defaultScope = $this->scopeUtil->getDefaultScope($client_id); + + if (false === $defaultScope) { + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, $state, 'invalid_client', 'This application requires you specify a scope parameter', null); + + return false; + } + + $requestedScope = $defaultScope; + } + + // Validate state parameter exists (if configured to enforce this) + if ($this->config['enforce_state'] && !$state) { + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, null, 'invalid_request', 'The state parameter is required'); + + return false; + } + + // save the input data and return true + $this->scope = $requestedScope; + $this->state = $state; + $this->client_id = $client_id; + // Only save the SUPPLIED redirect URI (@see http://tools.ietf.org/html/rfc6749#section-4.1.3) + $this->redirect_uri = $supplied_redirect_uri; + $this->response_type = $response_type; + + return true; + } + + /** + * Build the absolute URI based on supplied URI and parameters. + * + * @param $uri An absolute URI. + * @param $params Parameters to be append as GET. + * + * @return + * An absolute URI with supplied parameters. + * + * @ingroup oauth2_section_4 + */ + private function buildUri($uri, $params) + { + $parse_url = parse_url($uri); + + // Add our params to the parsed uri + foreach ($params as $k => $v) { + if (isset($parse_url[$k])) { + $parse_url[$k] .= "&" . http_build_query($v, '', '&'); + } else { + $parse_url[$k] = http_build_query($v, '', '&'); + } + } + + // Put humpty dumpty back together + return + ((isset($parse_url["scheme"])) ? $parse_url["scheme"] . "://" : "") + . ((isset($parse_url["user"])) ? $parse_url["user"] + . ((isset($parse_url["pass"])) ? ":" . $parse_url["pass"] : "") . "@" : "") + . ((isset($parse_url["host"])) ? $parse_url["host"] : "") + . ((isset($parse_url["port"])) ? ":" . $parse_url["port"] : "") + . ((isset($parse_url["path"])) ? $parse_url["path"] : "") + . ((isset($parse_url["query"]) && !empty($parse_url['query'])) ? "?" . $parse_url["query"] : "") + . ((isset($parse_url["fragment"])) ? "#" . $parse_url["fragment"] : "") + ; + } + + protected function getValidResponseTypes() + { + return array( + self::RESPONSE_TYPE_ACCESS_TOKEN, + self::RESPONSE_TYPE_AUTHORIZATION_CODE, + ); + } + + /** + * Internal method for validating redirect URI supplied + * + * @param string $inputUri The submitted URI to be validated + * @param string $registeredUriString The allowed URI(s) to validate against. Can be a space-delimited string of URIs to + * allow for multiple URIs + * + * @see http://tools.ietf.org/html/rfc6749#section-3.1.2 + */ + protected function validateRedirectUri($inputUri, $registeredUriString) + { + if (!$inputUri || !$registeredUriString) { + return false; // if either one is missing, assume INVALID + } + + $registered_uris = explode(' ', $registeredUriString); + foreach ($registered_uris as $registered_uri) { + if ($this->config['require_exact_redirect_uri']) { + // the input uri is validated against the registered uri using exact match + if (strcmp($inputUri, $registered_uri) === 0) { + return true; + } + } else { + $registered_uri_length = strlen($registered_uri); + if ($registered_uri_length === 0) { + return false; + } + + // the input uri is validated against the registered uri using case-insensitive match of the initial string + // i.e. additional query parameters may be applied + if (strcasecmp(substr($inputUri, 0, $registered_uri_length), $registered_uri) === 0) { + return true; + } + } + } + + return false; + } + + /** + * Convenience methods to access the parameters derived from the validated request + */ + + public function getScope() + { + return $this->scope; + } + + public function getState() + { + return $this->state; + } + + public function getClientId() + { + return $this->client_id; + } + + public function getRedirectUri() + { + return $this->redirect_uri; + } + + public function getResponseType() + { + return $this->response_type; + } +} diff --git a/library/oauth2/src/OAuth2/Controller/AuthorizeControllerInterface.php b/library/oauth2/src/OAuth2/Controller/AuthorizeControllerInterface.php new file mode 100644 index 000000000..fa07ae8d2 --- /dev/null +++ b/library/oauth2/src/OAuth2/Controller/AuthorizeControllerInterface.php @@ -0,0 +1,43 @@ +<?php + +namespace OAuth2\Controller; + +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * This controller is called when a user should be authorized + * by an authorization server. As OAuth2 does not handle + * authorization directly, this controller ensures the request is valid, but + * requires the application to determine the value of $is_authorized + * + * ex: + * > $user_id = $this->somehowDetermineUserId(); + * > $is_authorized = $this->somehowDetermineUserAuthorization(); + * > $response = new OAuth2\Response(); + * > $authorizeController->handleAuthorizeRequest( + * > OAuth2\Request::createFromGlobals(), + * > $response, + * > $is_authorized, + * > $user_id); + * > $response->send(); + * + */ +interface AuthorizeControllerInterface +{ + /** + * List of possible authentication response types. + * The "authorization_code" mechanism exclusively supports 'code' + * and the "implicit" mechanism exclusively supports 'token'. + * + * @var string + * @see http://tools.ietf.org/html/rfc6749#section-4.1.1 + * @see http://tools.ietf.org/html/rfc6749#section-4.2.1 + */ + const RESPONSE_TYPE_AUTHORIZATION_CODE = 'code'; + const RESPONSE_TYPE_ACCESS_TOKEN = 'token'; + + public function handleAuthorizeRequest(RequestInterface $request, ResponseInterface $response, $is_authorized, $user_id = null); + + public function validateAuthorizeRequest(RequestInterface $request, ResponseInterface $response); +} diff --git a/library/oauth2/src/OAuth2/Controller/ResourceController.php b/library/oauth2/src/OAuth2/Controller/ResourceController.php new file mode 100644 index 000000000..e8588188f --- /dev/null +++ b/library/oauth2/src/OAuth2/Controller/ResourceController.php @@ -0,0 +1,111 @@ +<?php + +namespace OAuth2\Controller; + +use OAuth2\TokenType\TokenTypeInterface; +use OAuth2\Storage\AccessTokenInterface; +use OAuth2\ScopeInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; +use OAuth2\Scope; + +/** + * @see OAuth2\Controller\ResourceControllerInterface + */ +class ResourceController implements ResourceControllerInterface +{ + private $token; + + protected $tokenType; + protected $tokenStorage; + protected $config; + protected $scopeUtil; + + public function __construct(TokenTypeInterface $tokenType, AccessTokenInterface $tokenStorage, $config = array(), ScopeInterface $scopeUtil = null) + { + $this->tokenType = $tokenType; + $this->tokenStorage = $tokenStorage; + + $this->config = array_merge(array( + 'www_realm' => 'Service', + ), $config); + + if (is_null($scopeUtil)) { + $scopeUtil = new Scope(); + } + $this->scopeUtil = $scopeUtil; + } + + public function verifyResourceRequest(RequestInterface $request, ResponseInterface $response, $scope = null) + { + $token = $this->getAccessTokenData($request, $response); + + // Check if we have token data + if (is_null($token)) { + return false; + } + + /** + * Check scope, if provided + * If token doesn't have a scope, it's null/empty, or it's insufficient, then throw 403 + * @see http://tools.ietf.org/html/rfc6750#section-3.1 + */ + if ($scope && (!isset($token["scope"]) || !$token["scope"] || !$this->scopeUtil->checkScope($scope, $token["scope"]))) { + $response->setError(403, 'insufficient_scope', 'The request requires higher privileges than provided by the access token'); + $response->addHttpHeaders(array( + 'WWW-Authenticate' => sprintf('%s realm="%s", scope="%s", error="%s", error_description="%s"', + $this->tokenType->getTokenType(), + $this->config['www_realm'], + $scope, + $response->getParameter('error'), + $response->getParameter('error_description') + ) + )); + + return false; + } + + // allow retrieval of the token + $this->token = $token; + + return (bool) $token; + } + + public function getAccessTokenData(RequestInterface $request, ResponseInterface $response) + { + // Get the token parameter + if ($token_param = $this->tokenType->getAccessTokenParameter($request, $response)) { + // Get the stored token data (from the implementing subclass) + // Check we have a well formed token + // Check token expiration (expires is a mandatory paramter) + if (!$token = $this->tokenStorage->getAccessToken($token_param)) { + $response->setError(401, 'invalid_token', 'The access token provided is invalid'); + } elseif (!isset($token["expires"]) || !isset($token["client_id"])) { + $response->setError(401, 'malformed_token', 'Malformed token (missing "expires")'); + } elseif (time() > $token["expires"]) { + $response->setError(401, 'expired_token', 'The access token provided has expired'); + } else { + return $token; + } + } + + $authHeader = sprintf('%s realm="%s"', $this->tokenType->getTokenType(), $this->config['www_realm']); + + if ($error = $response->getParameter('error')) { + $authHeader = sprintf('%s, error="%s"', $authHeader, $error); + if ($error_description = $response->getParameter('error_description')) { + $authHeader = sprintf('%s, error_description="%s"', $authHeader, $error_description); + } + } + + $response->addHttpHeaders(array('WWW-Authenticate' => $authHeader)); + + return null; + } + + // convenience method to allow retrieval of the token + public function getToken() + { + return $this->token; + } +} diff --git a/library/oauth2/src/OAuth2/Controller/ResourceControllerInterface.php b/library/oauth2/src/OAuth2/Controller/ResourceControllerInterface.php new file mode 100644 index 000000000..611421935 --- /dev/null +++ b/library/oauth2/src/OAuth2/Controller/ResourceControllerInterface.php @@ -0,0 +1,26 @@ +<?php + +namespace OAuth2\Controller; + +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * This controller is called when a "resource" is requested. + * call verifyResourceRequest in order to determine if the request + * contains a valid token. + * + * ex: + * > if (!$resourceController->verifyResourceRequest(OAuth2\Request::createFromGlobals(), $response = new OAuth2\Response())) { + * > $response->send(); // authorization failed + * > die(); + * > } + * > return json_encode($resource); // valid token! Send the stuff! + * + */ +interface ResourceControllerInterface +{ + public function verifyResourceRequest(RequestInterface $request, ResponseInterface $response, $scope = null); + + public function getAccessTokenData(RequestInterface $request, ResponseInterface $response); +} diff --git a/library/oauth2/src/OAuth2/Controller/TokenController.php b/library/oauth2/src/OAuth2/Controller/TokenController.php new file mode 100644 index 000000000..42dab892f --- /dev/null +++ b/library/oauth2/src/OAuth2/Controller/TokenController.php @@ -0,0 +1,278 @@ +<?php + +namespace OAuth2\Controller; + +use OAuth2\ResponseType\AccessTokenInterface; +use OAuth2\ClientAssertionType\ClientAssertionTypeInterface; +use OAuth2\GrantType\GrantTypeInterface; +use OAuth2\ScopeInterface; +use OAuth2\Scope; +use OAuth2\Storage\ClientInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * @see OAuth2\Controller\TokenControllerInterface + */ +class TokenController implements TokenControllerInterface +{ + protected $accessToken; + protected $grantTypes; + protected $clientAssertionType; + protected $scopeUtil; + protected $clientStorage; + + public function __construct(AccessTokenInterface $accessToken, ClientInterface $clientStorage, array $grantTypes = array(), ClientAssertionTypeInterface $clientAssertionType = null, ScopeInterface $scopeUtil = null) + { + if (is_null($clientAssertionType)) { + foreach ($grantTypes as $grantType) { + if (!$grantType instanceof ClientAssertionTypeInterface) { + throw new \InvalidArgumentException('You must supply an instance of OAuth2\ClientAssertionType\ClientAssertionTypeInterface or only use grant types which implement OAuth2\ClientAssertionType\ClientAssertionTypeInterface'); + } + } + } + $this->clientAssertionType = $clientAssertionType; + $this->accessToken = $accessToken; + $this->clientStorage = $clientStorage; + foreach ($grantTypes as $grantType) { + $this->addGrantType($grantType); + } + + if (is_null($scopeUtil)) { + $scopeUtil = new Scope(); + } + $this->scopeUtil = $scopeUtil; + } + + public function handleTokenRequest(RequestInterface $request, ResponseInterface $response) + { + if ($token = $this->grantAccessToken($request, $response)) { + // @see http://tools.ietf.org/html/rfc6749#section-5.1 + // server MUST disable caching in headers when tokens are involved + $response->setStatusCode(200); + $response->addParameters($token); + $response->addHttpHeaders(array( + 'Cache-Control' => 'no-store', + 'Pragma' => 'no-cache', + 'Content-Type' => 'application/json' + )); + } + } + + /** + * Grant or deny a requested access token. + * This would be called from the "/token" endpoint as defined in the spec. + * You can call your endpoint whatever you want. + * + * @param $request - RequestInterface + * Request object to grant access token + * + * @throws InvalidArgumentException + * @throws LogicException + * + * @see http://tools.ietf.org/html/rfc6749#section-4 + * @see http://tools.ietf.org/html/rfc6749#section-10.6 + * @see http://tools.ietf.org/html/rfc6749#section-4.1.3 + * + * @ingroup oauth2_section_4 + */ + public function grantAccessToken(RequestInterface $request, ResponseInterface $response) + { + if (strtolower($request->server('REQUEST_METHOD')) != 'post') { + $response->setError(405, 'invalid_request', 'The request method must be POST when requesting an access token', '#section-3.2'); + $response->addHttpHeaders(array('Allow' => 'POST')); + + return null; + } + + /** + * Determine grant type from request + * and validate the request for that grant type + */ + if (!$grantTypeIdentifier = $request->request('grant_type')) { + $response->setError(400, 'invalid_request', 'The grant type was not specified in the request'); + + return null; + } + + if (!isset($this->grantTypes[$grantTypeIdentifier])) { + /* TODO: If this is an OAuth2 supported grant type that we have chosen not to implement, throw a 501 Not Implemented instead */ + $response->setError(400, 'unsupported_grant_type', sprintf('Grant type "%s" not supported', $grantTypeIdentifier)); + + return null; + } + + $grantType = $this->grantTypes[$grantTypeIdentifier]; + + /** + * Retrieve the client information from the request + * ClientAssertionTypes allow for grant types which also assert the client data + * in which case ClientAssertion is handled in the validateRequest method + * + * @see OAuth2\GrantType\JWTBearer + * @see OAuth2\GrantType\ClientCredentials + */ + if (!$grantType instanceof ClientAssertionTypeInterface) { + if (!$this->clientAssertionType->validateRequest($request, $response)) { + return null; + } + $clientId = $this->clientAssertionType->getClientId(); + } + + /** + * Retrieve the grant type information from the request + * The GrantTypeInterface object handles all validation + * If the object is an instance of ClientAssertionTypeInterface, + * That logic is handled here as well + */ + if (!$grantType->validateRequest($request, $response)) { + return null; + } + + if ($grantType instanceof ClientAssertionTypeInterface) { + $clientId = $grantType->getClientId(); + } else { + // validate the Client ID (if applicable) + if (!is_null($storedClientId = $grantType->getClientId()) && $storedClientId != $clientId) { + $response->setError(400, 'invalid_grant', sprintf('%s doesn\'t exist or is invalid for the client', $grantTypeIdentifier)); + + return null; + } + } + + /** + * Validate the client can use the requested grant type + */ + if (!$this->clientStorage->checkRestrictedGrantType($clientId, $grantTypeIdentifier)) { + $response->setError(400, 'unauthorized_client', 'The grant type is unauthorized for this client_id'); + + return false; + } + + /** + * Validate the scope of the token + * + * requestedScope - the scope specified in the token request + * availableScope - the scope associated with the grant type + * ex: in the case of the "Authorization Code" grant type, + * the scope is specified in the authorize request + * + * @see http://tools.ietf.org/html/rfc6749#section-3.3 + */ + + $requestedScope = $this->scopeUtil->getScopeFromRequest($request); + $availableScope = $grantType->getScope(); + + if ($requestedScope) { + // validate the requested scope + if ($availableScope) { + if (!$this->scopeUtil->checkScope($requestedScope, $availableScope)) { + $response->setError(400, 'invalid_scope', 'The scope requested is invalid for this request'); + + return null; + } + } else { + // validate the client has access to this scope + if ($clientScope = $this->clientStorage->getClientScope($clientId)) { + if (!$this->scopeUtil->checkScope($requestedScope, $clientScope)) { + $response->setError(400, 'invalid_scope', 'The scope requested is invalid for this client'); + + return false; + } + } elseif (!$this->scopeUtil->scopeExists($requestedScope)) { + $response->setError(400, 'invalid_scope', 'An unsupported scope was requested'); + + return null; + } + } + } elseif ($availableScope) { + // use the scope associated with this grant type + $requestedScope = $availableScope; + } else { + // use a globally-defined default scope + $defaultScope = $this->scopeUtil->getDefaultScope($clientId); + + // "false" means default scopes are not allowed + if (false === $defaultScope) { + $response->setError(400, 'invalid_scope', 'This application requires you specify a scope parameter'); + + return null; + } + + $requestedScope = $defaultScope; + } + + return $grantType->createAccessToken($this->accessToken, $clientId, $grantType->getUserId(), $requestedScope); + } + + /** + * addGrantType + * + * @param grantType - OAuth2\GrantTypeInterface + * the grant type to add for the specified identifier + * @param identifier - string + * a string passed in as "grant_type" in the response that will call this grantType + */ + public function addGrantType(GrantTypeInterface $grantType, $identifier = null) + { + if (is_null($identifier) || is_numeric($identifier)) { + $identifier = $grantType->getQuerystringIdentifier(); + } + + $this->grantTypes[$identifier] = $grantType; + } + + public function handleRevokeRequest(RequestInterface $request, ResponseInterface $response) + { + if ($this->revokeToken($request, $response)) { + $response->setStatusCode(200); + $response->addParameters(array('revoked' => true)); + } + } + + /** + * Revoke a refresh or access token. Returns true on success and when tokens are invalid + * + * Note: invalid tokens do not cause an error response since the client + * cannot handle such an error in a reasonable way. Moreover, the + * purpose of the revocation request, invalidating the particular token, + * is already achieved. + * + * @param RequestInterface $request + * @param ResponseInterface $response + * @return bool|null + */ + public function revokeToken(RequestInterface $request, ResponseInterface $response) + { + if (strtolower($request->server('REQUEST_METHOD')) != 'post') { + $response->setError(405, 'invalid_request', 'The request method must be POST when revoking an access token', '#section-3.2'); + $response->addHttpHeaders(array('Allow' => 'POST')); + + return null; + } + + $token_type_hint = $request->request('token_type_hint'); + if (!in_array($token_type_hint, array(null, 'access_token', 'refresh_token'), true)) { + $response->setError(400, 'invalid_request', 'Token type hint must be either \'access_token\' or \'refresh_token\''); + + return null; + } + + $token = $request->request('token'); + if ($token === null) { + $response->setError(400, 'invalid_request', 'Missing token parameter to revoke'); + + return null; + } + + // @todo remove this check for v2.0 + if (!method_exists($this->accessToken, 'revokeToken')) { + $class = get_class($this->accessToken); + throw new \RuntimeException("AccessToken {$class} does not implement required revokeToken method"); + } + + $this->accessToken->revokeToken($token, $token_type_hint); + + return true; + } +} diff --git a/library/oauth2/src/OAuth2/Controller/TokenControllerInterface.php b/library/oauth2/src/OAuth2/Controller/TokenControllerInterface.php new file mode 100644 index 000000000..72d72570f --- /dev/null +++ b/library/oauth2/src/OAuth2/Controller/TokenControllerInterface.php @@ -0,0 +1,32 @@ +<?php + +namespace OAuth2\Controller; + +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * This controller is called when a token is being requested. + * it is called to handle all grant types the application supports. + * It also validates the client's credentials + * + * ex: + * > $tokenController->handleTokenRequest(OAuth2\Request::createFromGlobals(), $response = new OAuth2\Response()); + * > $response->send(); + * + */ +interface TokenControllerInterface +{ + /** + * handleTokenRequest + * + * @param $request + * OAuth2\RequestInterface - The current http request + * @param $response + * OAuth2\ResponseInterface - An instance of OAuth2\ResponseInterface to contain the response data + * + */ + public function handleTokenRequest(RequestInterface $request, ResponseInterface $response); + + public function grantAccessToken(RequestInterface $request, ResponseInterface $response); +} diff --git a/library/oauth2/src/OAuth2/Encryption/EncryptionInterface.php b/library/oauth2/src/OAuth2/Encryption/EncryptionInterface.php new file mode 100644 index 000000000..2d336c664 --- /dev/null +++ b/library/oauth2/src/OAuth2/Encryption/EncryptionInterface.php @@ -0,0 +1,11 @@ +<?php + +namespace OAuth2\Encryption; + +interface EncryptionInterface +{ + public function encode($payload, $key, $algorithm = null); + public function decode($payload, $key, $algorithm = null); + public function urlSafeB64Encode($data); + public function urlSafeB64Decode($b64); +} diff --git a/library/oauth2/src/OAuth2/Encryption/FirebaseJwt.php b/library/oauth2/src/OAuth2/Encryption/FirebaseJwt.php new file mode 100644 index 000000000..1b527e0a0 --- /dev/null +++ b/library/oauth2/src/OAuth2/Encryption/FirebaseJwt.php @@ -0,0 +1,47 @@ +<?php + +namespace OAuth2\Encryption; + +/** + * Bridge file to use the firebase/php-jwt package for JWT encoding and decoding. + * @author Francis Chuang <francis.chuang@gmail.com> + */ +class FirebaseJwt implements EncryptionInterface +{ + public function __construct() + { + if (!class_exists('\JWT')) { + throw new \ErrorException('firebase/php-jwt must be installed to use this feature. You can do this by running "composer require firebase/php-jwt"'); + } + } + + public function encode($payload, $key, $alg = 'HS256', $keyId = null) + { + return \JWT::encode($payload, $key, $alg, $keyId); + } + + public function decode($jwt, $key = null, $allowedAlgorithms = null) + { + try { + + //Maintain BC: Do not verify if no algorithms are passed in. + if (!$allowedAlgorithms) { + $key = null; + } + + return (array)\JWT::decode($jwt, $key, $allowedAlgorithms); + } catch (\Exception $e) { + return false; + } + } + + public function urlSafeB64Encode($data) + { + return \JWT::urlsafeB64Encode($data); + } + + public function urlSafeB64Decode($b64) + { + return \JWT::urlsafeB64Decode($b64); + } +} diff --git a/library/oauth2/src/OAuth2/Encryption/Jwt.php b/library/oauth2/src/OAuth2/Encryption/Jwt.php new file mode 100644 index 000000000..ee576e643 --- /dev/null +++ b/library/oauth2/src/OAuth2/Encryption/Jwt.php @@ -0,0 +1,173 @@ +<?php + +namespace OAuth2\Encryption; + +/** + * @link https://github.com/F21/jwt + * @author F21 + */ +class Jwt implements EncryptionInterface +{ + public function encode($payload, $key, $algo = 'HS256') + { + $header = $this->generateJwtHeader($payload, $algo); + + $segments = array( + $this->urlSafeB64Encode(json_encode($header)), + $this->urlSafeB64Encode(json_encode($payload)) + ); + + $signing_input = implode('.', $segments); + + $signature = $this->sign($signing_input, $key, $algo); + $segments[] = $this->urlsafeB64Encode($signature); + + return implode('.', $segments); + } + + public function decode($jwt, $key = null, $allowedAlgorithms = true) + { + if (!strpos($jwt, '.')) { + return false; + } + + $tks = explode('.', $jwt); + + if (count($tks) != 3) { + return false; + } + + list($headb64, $payloadb64, $cryptob64) = $tks; + + if (null === ($header = json_decode($this->urlSafeB64Decode($headb64), true))) { + return false; + } + + if (null === $payload = json_decode($this->urlSafeB64Decode($payloadb64), true)) { + return false; + } + + $sig = $this->urlSafeB64Decode($cryptob64); + + if ((bool) $allowedAlgorithms) { + if (!isset($header['alg'])) { + return false; + } + + // check if bool arg supplied here to maintain BC + if (is_array($allowedAlgorithms) && !in_array($header['alg'], $allowedAlgorithms)) { + return false; + } + + if (!$this->verifySignature($sig, "$headb64.$payloadb64", $key, $header['alg'])) { + return false; + } + } + + return $payload; + } + + private function verifySignature($signature, $input, $key, $algo = 'HS256') + { + // use constants when possible, for HipHop support + switch ($algo) { + case'HS256': + case'HS384': + case'HS512': + return $this->hash_equals( + $this->sign($input, $key, $algo), + $signature + ); + + case 'RS256': + return openssl_verify($input, $signature, $key, defined('OPENSSL_ALGO_SHA256') ? OPENSSL_ALGO_SHA256 : 'sha256') === 1; + + case 'RS384': + return @openssl_verify($input, $signature, $key, defined('OPENSSL_ALGO_SHA384') ? OPENSSL_ALGO_SHA384 : 'sha384') === 1; + + case 'RS512': + return @openssl_verify($input, $signature, $key, defined('OPENSSL_ALGO_SHA512') ? OPENSSL_ALGO_SHA512 : 'sha512') === 1; + + default: + throw new \InvalidArgumentException("Unsupported or invalid signing algorithm."); + } + } + + private function sign($input, $key, $algo = 'HS256') + { + switch ($algo) { + case 'HS256': + return hash_hmac('sha256', $input, $key, true); + + case 'HS384': + return hash_hmac('sha384', $input, $key, true); + + case 'HS512': + return hash_hmac('sha512', $input, $key, true); + + case 'RS256': + return $this->generateRSASignature($input, $key, defined('OPENSSL_ALGO_SHA256') ? OPENSSL_ALGO_SHA256 : 'sha256'); + + case 'RS384': + return $this->generateRSASignature($input, $key, defined('OPENSSL_ALGO_SHA384') ? OPENSSL_ALGO_SHA384 : 'sha384'); + + case 'RS512': + return $this->generateRSASignature($input, $key, defined('OPENSSL_ALGO_SHA512') ? OPENSSL_ALGO_SHA512 : 'sha512'); + + default: + throw new \Exception("Unsupported or invalid signing algorithm."); + } + } + + private function generateRSASignature($input, $key, $algo) + { + if (!openssl_sign($input, $signature, $key, $algo)) { + throw new \Exception("Unable to sign data."); + } + + return $signature; + } + + public function urlSafeB64Encode($data) + { + $b64 = base64_encode($data); + $b64 = str_replace(array('+', '/', "\r", "\n", '='), + array('-', '_'), + $b64); + + return $b64; + } + + public function urlSafeB64Decode($b64) + { + $b64 = str_replace(array('-', '_'), + array('+', '/'), + $b64); + + return base64_decode($b64); + } + + /** + * Override to create a custom header + */ + protected function generateJwtHeader($payload, $algorithm) + { + return array( + 'typ' => 'JWT', + 'alg' => $algorithm, + ); + } + + protected function hash_equals($a, $b) + { + if (function_exists('hash_equals')) { + return hash_equals($a, $b); + } + $diff = strlen($a) ^ strlen($b); + for ($i = 0; $i < strlen($a) && $i < strlen($b); $i++) { + $diff |= ord($a[$i]) ^ ord($b[$i]); + } + + return $diff === 0; + } +} diff --git a/library/oauth2/src/OAuth2/GrantType/AuthorizationCode.php b/library/oauth2/src/OAuth2/GrantType/AuthorizationCode.php new file mode 100644 index 000000000..e8995204c --- /dev/null +++ b/library/oauth2/src/OAuth2/GrantType/AuthorizationCode.php @@ -0,0 +1,100 @@ +<?php + +namespace OAuth2\GrantType; + +use OAuth2\Storage\AuthorizationCodeInterface; +use OAuth2\ResponseType\AccessTokenInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class AuthorizationCode implements GrantTypeInterface +{ + protected $storage; + protected $authCode; + + /** + * @param OAuth2\Storage\AuthorizationCodeInterface $storage REQUIRED Storage class for retrieving authorization code information + */ + public function __construct(AuthorizationCodeInterface $storage) + { + $this->storage = $storage; + } + + public function getQuerystringIdentifier() + { + return 'authorization_code'; + } + + public function validateRequest(RequestInterface $request, ResponseInterface $response) + { + if (!$request->request('code')) { + $response->setError(400, 'invalid_request', 'Missing parameter: "code" is required'); + + return false; + } + + $code = $request->request('code'); + if (!$authCode = $this->storage->getAuthorizationCode($code)) { + $response->setError(400, 'invalid_grant', 'Authorization code doesn\'t exist or is invalid for the client'); + + return false; + } + + /* + * 4.1.3 - ensure that the "redirect_uri" parameter is present if the "redirect_uri" parameter was included in the initial authorization request + * @uri - http://tools.ietf.org/html/rfc6749#section-4.1.3 + */ + if (isset($authCode['redirect_uri']) && $authCode['redirect_uri']) { + if (!$request->request('redirect_uri') || urldecode($request->request('redirect_uri')) != $authCode['redirect_uri']) { + $response->setError(400, 'redirect_uri_mismatch', "The redirect URI is missing or do not match", "#section-4.1.3"); + + return false; + } + } + + if (!isset($authCode['expires'])) { + throw new \Exception('Storage must return authcode with a value for "expires"'); + } + + if ($authCode["expires"] < time()) { + $response->setError(400, 'invalid_grant', "The authorization code has expired"); + + return false; + } + + if (!isset($authCode['code'])) { + $authCode['code'] = $code; // used to expire the code after the access token is granted + } + + $this->authCode = $authCode; + + return true; + } + + public function getClientId() + { + return $this->authCode['client_id']; + } + + public function getScope() + { + return isset($this->authCode['scope']) ? $this->authCode['scope'] : null; + } + + public function getUserId() + { + return isset($this->authCode['user_id']) ? $this->authCode['user_id'] : null; + } + + public function createAccessToken(AccessTokenInterface $accessToken, $client_id, $user_id, $scope) + { + $token = $accessToken->createAccessToken($client_id, $user_id, $scope); + $this->storage->expireAuthorizationCode($this->authCode['code']); + + return $token; + } +} diff --git a/library/oauth2/src/OAuth2/GrantType/ClientCredentials.php b/library/oauth2/src/OAuth2/GrantType/ClientCredentials.php new file mode 100644 index 000000000..f953e4e8d --- /dev/null +++ b/library/oauth2/src/OAuth2/GrantType/ClientCredentials.php @@ -0,0 +1,67 @@ +<?php + +namespace OAuth2\GrantType; + +use OAuth2\ClientAssertionType\HttpBasic; +use OAuth2\ResponseType\AccessTokenInterface; +use OAuth2\Storage\ClientCredentialsInterface; + +/** + * @author Brent Shaffer <bshafs at gmail dot com> + * + * @see OAuth2\ClientAssertionType_HttpBasic + */ +class ClientCredentials extends HttpBasic implements GrantTypeInterface +{ + private $clientData; + + public function __construct(ClientCredentialsInterface $storage, array $config = array()) + { + /** + * The client credentials grant type MUST only be used by confidential clients + * + * @see http://tools.ietf.org/html/rfc6749#section-4.4 + */ + $config['allow_public_clients'] = false; + + parent::__construct($storage, $config); + } + + public function getQuerystringIdentifier() + { + return 'client_credentials'; + } + + public function getScope() + { + $this->loadClientData(); + + return isset($this->clientData['scope']) ? $this->clientData['scope'] : null; + } + + public function getUserId() + { + $this->loadClientData(); + + return isset($this->clientData['user_id']) ? $this->clientData['user_id'] : null; + } + + public function createAccessToken(AccessTokenInterface $accessToken, $client_id, $user_id, $scope) + { + /** + * Client Credentials Grant does NOT include a refresh token + * + * @see http://tools.ietf.org/html/rfc6749#section-4.4.3 + */ + $includeRefreshToken = false; + + return $accessToken->createAccessToken($client_id, $user_id, $scope, $includeRefreshToken); + } + + private function loadClientData() + { + if (!$this->clientData) { + $this->clientData = $this->storage->getClientDetails($this->getClientId()); + } + } +} diff --git a/library/oauth2/src/OAuth2/GrantType/GrantTypeInterface.php b/library/oauth2/src/OAuth2/GrantType/GrantTypeInterface.php new file mode 100644 index 000000000..98489e9c1 --- /dev/null +++ b/library/oauth2/src/OAuth2/GrantType/GrantTypeInterface.php @@ -0,0 +1,20 @@ +<?php + +namespace OAuth2\GrantType; + +use OAuth2\ResponseType\AccessTokenInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * Interface for all OAuth2 Grant Types + */ +interface GrantTypeInterface +{ + public function getQuerystringIdentifier(); + public function validateRequest(RequestInterface $request, ResponseInterface $response); + public function getClientId(); + public function getUserId(); + public function getScope(); + public function createAccessToken(AccessTokenInterface $accessToken, $client_id, $user_id, $scope); +} diff --git a/library/oauth2/src/OAuth2/GrantType/JwtBearer.php b/library/oauth2/src/OAuth2/GrantType/JwtBearer.php new file mode 100644 index 000000000..bb11a6954 --- /dev/null +++ b/library/oauth2/src/OAuth2/GrantType/JwtBearer.php @@ -0,0 +1,226 @@ +<?php + +namespace OAuth2\GrantType; + +use OAuth2\ClientAssertionType\ClientAssertionTypeInterface; +use OAuth2\Storage\JwtBearerInterface; +use OAuth2\Encryption\Jwt; +use OAuth2\Encryption\EncryptionInterface; +use OAuth2\ResponseType\AccessTokenInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * The JWT bearer authorization grant implements JWT (JSON Web Tokens) as a grant type per the IETF draft. + * + * @see http://tools.ietf.org/html/draft-ietf-oauth-jwt-bearer-04#section-4 + * + * @author F21 + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class JwtBearer implements GrantTypeInterface, ClientAssertionTypeInterface +{ + private $jwt; + + protected $storage; + protected $audience; + protected $jwtUtil; + protected $allowedAlgorithms; + + /** + * Creates an instance of the JWT bearer grant type. + * + * @param OAuth2\Storage\JWTBearerInterface|JwtBearerInterface $storage A valid storage interface that implements storage hooks for the JWT bearer grant type. + * @param string $audience The audience to validate the token against. This is usually the full URI of the OAuth token requests endpoint. + * @param EncryptionInterface|OAuth2\Encryption\JWT $jwtUtil OPTONAL The class used to decode, encode and verify JWTs. + * @param array $config + */ + public function __construct(JwtBearerInterface $storage, $audience, EncryptionInterface $jwtUtil = null, array $config = array()) + { + $this->storage = $storage; + $this->audience = $audience; + + if (is_null($jwtUtil)) { + $jwtUtil = new Jwt(); + } + + $this->config = array_merge(array( + 'allowed_algorithms' => array('RS256', 'RS384', 'RS512') + ), $config); + + $this->jwtUtil = $jwtUtil; + + $this->allowedAlgorithms = $this->config['allowed_algorithms']; + } + + /** + * Returns the grant_type get parameter to identify the grant type request as JWT bearer authorization grant. + * + * @return + * The string identifier for grant_type. + * + * @see OAuth2\GrantType\GrantTypeInterface::getQuerystringIdentifier() + */ + public function getQuerystringIdentifier() + { + return 'urn:ietf:params:oauth:grant-type:jwt-bearer'; + } + + /** + * Validates the data from the decoded JWT. + * + * @return + * TRUE if the JWT request is valid and can be decoded. Otherwise, FALSE is returned. + * + * @see OAuth2\GrantType\GrantTypeInterface::getTokenData() + */ + public function validateRequest(RequestInterface $request, ResponseInterface $response) + { + if (!$request->request("assertion")) { + $response->setError(400, 'invalid_request', 'Missing parameters: "assertion" required'); + + return null; + } + + // Store the undecoded JWT for later use + $undecodedJWT = $request->request('assertion'); + + // Decode the JWT + $jwt = $this->jwtUtil->decode($request->request('assertion'), null, false); + + if (!$jwt) { + $response->setError(400, 'invalid_request', "JWT is malformed"); + + return null; + } + + // ensure these properties contain a value + // @todo: throw malformed error for missing properties + $jwt = array_merge(array( + 'scope' => null, + 'iss' => null, + 'sub' => null, + 'aud' => null, + 'exp' => null, + 'nbf' => null, + 'iat' => null, + 'jti' => null, + 'typ' => null, + ), $jwt); + + if (!isset($jwt['iss'])) { + $response->setError(400, 'invalid_grant', "Invalid issuer (iss) provided"); + + return null; + } + + if (!isset($jwt['sub'])) { + $response->setError(400, 'invalid_grant', "Invalid subject (sub) provided"); + + return null; + } + + if (!isset($jwt['exp'])) { + $response->setError(400, 'invalid_grant', "Expiration (exp) time must be present"); + + return null; + } + + // Check expiration + if (ctype_digit($jwt['exp'])) { + if ($jwt['exp'] <= time()) { + $response->setError(400, 'invalid_grant', "JWT has expired"); + + return null; + } + } else { + $response->setError(400, 'invalid_grant', "Expiration (exp) time must be a unix time stamp"); + + return null; + } + + // Check the not before time + if ($notBefore = $jwt['nbf']) { + if (ctype_digit($notBefore)) { + if ($notBefore > time()) { + $response->setError(400, 'invalid_grant', "JWT cannot be used before the Not Before (nbf) time"); + + return null; + } + } else { + $response->setError(400, 'invalid_grant', "Not Before (nbf) time must be a unix time stamp"); + + return null; + } + } + + // Check the audience if required to match + if (!isset($jwt['aud']) || ($jwt['aud'] != $this->audience)) { + $response->setError(400, 'invalid_grant', "Invalid audience (aud)"); + + return null; + } + + // Check the jti (nonce) + // @see http://tools.ietf.org/html/draft-ietf-oauth-json-web-token-13#section-4.1.7 + if (isset($jwt['jti'])) { + $jti = $this->storage->getJti($jwt['iss'], $jwt['sub'], $jwt['aud'], $jwt['exp'], $jwt['jti']); + + //Reject if jti is used and jwt is still valid (exp parameter has not expired). + if ($jti && $jti['expires'] > time()) { + $response->setError(400, 'invalid_grant', "JSON Token Identifier (jti) has already been used"); + + return null; + } else { + $this->storage->setJti($jwt['iss'], $jwt['sub'], $jwt['aud'], $jwt['exp'], $jwt['jti']); + } + } + + // Get the iss's public key + // @see http://tools.ietf.org/html/draft-ietf-oauth-json-web-token-06#section-4.1.1 + if (!$key = $this->storage->getClientKey($jwt['iss'], $jwt['sub'])) { + $response->setError(400, 'invalid_grant', "Invalid issuer (iss) or subject (sub) provided"); + + return null; + } + + // Verify the JWT + if (!$this->jwtUtil->decode($undecodedJWT, $key, $this->allowedAlgorithms)) { + $response->setError(400, 'invalid_grant', "JWT failed signature verification"); + + return null; + } + + $this->jwt = $jwt; + + return true; + } + + public function getClientId() + { + return $this->jwt['iss']; + } + + public function getUserId() + { + return $this->jwt['sub']; + } + + public function getScope() + { + return null; + } + + /** + * Creates an access token that is NOT associated with a refresh token. + * If a subject (sub) the name of the user/account we are accessing data on behalf of. + * + * @see OAuth2\GrantType\GrantTypeInterface::createAccessToken() + */ + public function createAccessToken(AccessTokenInterface $accessToken, $client_id, $user_id, $scope) + { + $includeRefreshToken = false; + + return $accessToken->createAccessToken($client_id, $user_id, $scope, $includeRefreshToken); + } +} diff --git a/library/oauth2/src/OAuth2/GrantType/RefreshToken.php b/library/oauth2/src/OAuth2/GrantType/RefreshToken.php new file mode 100644 index 000000000..e55385222 --- /dev/null +++ b/library/oauth2/src/OAuth2/GrantType/RefreshToken.php @@ -0,0 +1,111 @@ +<?php + +namespace OAuth2\GrantType; + +use OAuth2\Storage\RefreshTokenInterface; +use OAuth2\ResponseType\AccessTokenInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class RefreshToken implements GrantTypeInterface +{ + private $refreshToken; + + protected $storage; + protected $config; + + /** + * @param OAuth2\Storage\RefreshTokenInterface $storage REQUIRED Storage class for retrieving refresh token information + * @param array $config OPTIONAL Configuration options for the server + * <code> + * $config = array( + * 'always_issue_new_refresh_token' => true, // whether to issue a new refresh token upon successful token request + * 'unset_refresh_token_after_use' => true // whether to unset the refresh token after after using + * ); + * </code> + */ + public function __construct(RefreshTokenInterface $storage, $config = array()) + { + $this->config = array_merge(array( + 'always_issue_new_refresh_token' => false, + 'unset_refresh_token_after_use' => true + ), $config); + + // to preserve B.C. with v1.6 + // @see https://github.com/bshaffer/oauth2-server-php/pull/580 + // @todo - remove in v2.0 + if (isset($config['always_issue_new_refresh_token']) && !isset($config['unset_refresh_token_after_use'])) { + $this->config['unset_refresh_token_after_use'] = $config['always_issue_new_refresh_token']; + } + + $this->storage = $storage; + } + + public function getQuerystringIdentifier() + { + return 'refresh_token'; + } + + public function validateRequest(RequestInterface $request, ResponseInterface $response) + { + if (!$request->request("refresh_token")) { + $response->setError(400, 'invalid_request', 'Missing parameter: "refresh_token" is required'); + + return null; + } + + if (!$refreshToken = $this->storage->getRefreshToken($request->request("refresh_token"))) { + $response->setError(400, 'invalid_grant', 'Invalid refresh token'); + + return null; + } + + if ($refreshToken['expires'] > 0 && $refreshToken["expires"] < time()) { + $response->setError(400, 'invalid_grant', 'Refresh token has expired'); + + return null; + } + + // store the refresh token locally so we can delete it when a new refresh token is generated + $this->refreshToken = $refreshToken; + + return true; + } + + public function getClientId() + { + return $this->refreshToken['client_id']; + } + + public function getUserId() + { + return isset($this->refreshToken['user_id']) ? $this->refreshToken['user_id'] : null; + } + + public function getScope() + { + return isset($this->refreshToken['scope']) ? $this->refreshToken['scope'] : null; + } + + public function createAccessToken(AccessTokenInterface $accessToken, $client_id, $user_id, $scope) + { + /* + * It is optional to force a new refresh token when a refresh token is used. + * However, if a new refresh token is issued, the old one MUST be expired + * @see http://tools.ietf.org/html/rfc6749#section-6 + */ + $issueNewRefreshToken = $this->config['always_issue_new_refresh_token']; + $unsetRefreshToken = $this->config['unset_refresh_token_after_use']; + $token = $accessToken->createAccessToken($client_id, $user_id, $scope, $issueNewRefreshToken); + + if ($unsetRefreshToken) { + $this->storage->unsetRefreshToken($this->refreshToken['refresh_token']); + } + + return $token; + } +} diff --git a/library/oauth2/src/OAuth2/GrantType/UserCredentials.php b/library/oauth2/src/OAuth2/GrantType/UserCredentials.php new file mode 100644 index 000000000..f165538ba --- /dev/null +++ b/library/oauth2/src/OAuth2/GrantType/UserCredentials.php @@ -0,0 +1,83 @@ +<?php + +namespace OAuth2\GrantType; + +use OAuth2\Storage\UserCredentialsInterface; +use OAuth2\ResponseType\AccessTokenInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class UserCredentials implements GrantTypeInterface +{ + private $userInfo; + + protected $storage; + + /** + * @param OAuth2\Storage\UserCredentialsInterface $storage REQUIRED Storage class for retrieving user credentials information + */ + public function __construct(UserCredentialsInterface $storage) + { + $this->storage = $storage; + } + + public function getQuerystringIdentifier() + { + return 'password'; + } + + public function validateRequest(RequestInterface $request, ResponseInterface $response) + { + if (!$request->request("password") || !$request->request("username")) { + $response->setError(400, 'invalid_request', 'Missing parameters: "username" and "password" required'); + + return null; + } + + if (!$this->storage->checkUserCredentials($request->request("username"), $request->request("password"))) { + $response->setError(401, 'invalid_grant', 'Invalid username and password combination'); + + return null; + } + + $userInfo = $this->storage->getUserDetails($request->request("username")); + + if (empty($userInfo)) { + $response->setError(400, 'invalid_grant', 'Unable to retrieve user information'); + + return null; + } + + if (!isset($userInfo['user_id'])) { + throw new \LogicException("you must set the user_id on the array returned by getUserDetails"); + } + + $this->userInfo = $userInfo; + + return true; + } + + public function getClientId() + { + return null; + } + + public function getUserId() + { + return $this->userInfo['user_id']; + } + + public function getScope() + { + return isset($this->userInfo['scope']) ? $this->userInfo['scope'] : null; + } + + public function createAccessToken(AccessTokenInterface $accessToken, $client_id, $user_id, $scope) + { + return $accessToken->createAccessToken($client_id, $user_id, $scope); + } +} diff --git a/library/oauth2/src/OAuth2/OpenID/Controller/AuthorizeController.php b/library/oauth2/src/OAuth2/OpenID/Controller/AuthorizeController.php new file mode 100644 index 000000000..c9b5c6af7 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/Controller/AuthorizeController.php @@ -0,0 +1,106 @@ +<?php + +namespace OAuth2\OpenID\Controller; + +use OAuth2\Controller\AuthorizeController as BaseAuthorizeController; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * @see OAuth2\Controller\AuthorizeControllerInterface + */ +class AuthorizeController extends BaseAuthorizeController implements AuthorizeControllerInterface +{ + private $nonce; + + protected function setNotAuthorizedResponse(RequestInterface $request, ResponseInterface $response, $redirect_uri, $user_id = null) + { + $prompt = $request->query('prompt', 'consent'); + if ($prompt == 'none') { + if (is_null($user_id)) { + $error = 'login_required'; + $error_message = 'The user must log in'; + } else { + $error = 'interaction_required'; + $error_message = 'The user must grant access to your application'; + } + } else { + $error = 'consent_required'; + $error_message = 'The user denied access to your application'; + } + + $response->setRedirect($this->config['redirect_status_code'], $redirect_uri, $this->getState(), $error, $error_message); + } + + protected function buildAuthorizeParameters($request, $response, $user_id) + { + if (!$params = parent::buildAuthorizeParameters($request, $response, $user_id)) { + return; + } + + // Generate an id token if needed. + if ($this->needsIdToken($this->getScope()) && $this->getResponseType() == self::RESPONSE_TYPE_AUTHORIZATION_CODE) { + $params['id_token'] = $this->responseTypes['id_token']->createIdToken($this->getClientId(), $user_id, $this->nonce); + } + + // add the nonce to return with the redirect URI + $params['nonce'] = $this->nonce; + + return $params; + } + + public function validateAuthorizeRequest(RequestInterface $request, ResponseInterface $response) + { + if (!parent::validateAuthorizeRequest($request, $response)) { + return false; + } + + $nonce = $request->query('nonce'); + + // Validate required nonce for "id_token" and "id_token token" + if (!$nonce && in_array($this->getResponseType(), array(self::RESPONSE_TYPE_ID_TOKEN, self::RESPONSE_TYPE_ID_TOKEN_TOKEN))) { + $response->setError(400, 'invalid_nonce', 'This application requires you specify a nonce parameter'); + + return false; + } + + $this->nonce = $nonce; + + return true; + } + + protected function getValidResponseTypes() + { + return array( + self::RESPONSE_TYPE_ACCESS_TOKEN, + self::RESPONSE_TYPE_AUTHORIZATION_CODE, + self::RESPONSE_TYPE_ID_TOKEN, + self::RESPONSE_TYPE_ID_TOKEN_TOKEN, + self::RESPONSE_TYPE_CODE_ID_TOKEN, + ); + } + + /** + * Returns whether the current request needs to generate an id token. + * + * ID Tokens are a part of the OpenID Connect specification, so this + * method checks whether OpenID Connect is enabled in the server settings + * and whether the openid scope was requested. + * + * @param $request_scope + * A space-separated string of scopes. + * + * @return + * TRUE if an id token is needed, FALSE otherwise. + */ + public function needsIdToken($request_scope) + { + // see if the "openid" scope exists in the requested scope + return $this->scopeUtil->checkScope('openid', $request_scope); + } + + public function getNonce() + { + return $this->nonce; + } +} diff --git a/library/oauth2/src/OAuth2/OpenID/Controller/AuthorizeControllerInterface.php b/library/oauth2/src/OAuth2/OpenID/Controller/AuthorizeControllerInterface.php new file mode 100644 index 000000000..1e231d844 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/Controller/AuthorizeControllerInterface.php @@ -0,0 +1,10 @@ +<?php + +namespace OAuth2\OpenID\Controller; + +interface AuthorizeControllerInterface +{ + const RESPONSE_TYPE_ID_TOKEN = 'id_token'; + const RESPONSE_TYPE_ID_TOKEN_TOKEN = 'id_token token'; + const RESPONSE_TYPE_CODE_ID_TOKEN = 'code id_token'; +} diff --git a/library/oauth2/src/OAuth2/OpenID/Controller/UserInfoController.php b/library/oauth2/src/OAuth2/OpenID/Controller/UserInfoController.php new file mode 100644 index 000000000..30cb942d0 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/Controller/UserInfoController.php @@ -0,0 +1,58 @@ +<?php + +namespace OAuth2\OpenID\Controller; + +use OAuth2\Scope; +use OAuth2\TokenType\TokenTypeInterface; +use OAuth2\Storage\AccessTokenInterface; +use OAuth2\OpenID\Storage\UserClaimsInterface; +use OAuth2\Controller\ResourceController; +use OAuth2\ScopeInterface; +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * @see OAuth2\Controller\UserInfoControllerInterface + */ +class UserInfoController extends ResourceController implements UserInfoControllerInterface +{ + private $token; + + protected $tokenType; + protected $tokenStorage; + protected $userClaimsStorage; + protected $config; + protected $scopeUtil; + + public function __construct(TokenTypeInterface $tokenType, AccessTokenInterface $tokenStorage, UserClaimsInterface $userClaimsStorage, $config = array(), ScopeInterface $scopeUtil = null) + { + $this->tokenType = $tokenType; + $this->tokenStorage = $tokenStorage; + $this->userClaimsStorage = $userClaimsStorage; + + $this->config = array_merge(array( + 'www_realm' => 'Service', + ), $config); + + if (is_null($scopeUtil)) { + $scopeUtil = new Scope(); + } + $this->scopeUtil = $scopeUtil; + } + + public function handleUserInfoRequest(RequestInterface $request, ResponseInterface $response) + { + if (!$this->verifyResourceRequest($request, $response, 'openid')) { + return; + } + + $token = $this->getToken(); + $claims = $this->userClaimsStorage->getUserClaims($token['user_id'], $token['scope']); + // The sub Claim MUST always be returned in the UserInfo Response. + // http://openid.net/specs/openid-connect-core-1_0.html#UserInfoResponse + $claims += array( + 'sub' => $token['user_id'], + ); + $response->addParameters($claims); + } +} diff --git a/library/oauth2/src/OAuth2/OpenID/Controller/UserInfoControllerInterface.php b/library/oauth2/src/OAuth2/OpenID/Controller/UserInfoControllerInterface.php new file mode 100644 index 000000000..a89049d49 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/Controller/UserInfoControllerInterface.php @@ -0,0 +1,23 @@ +<?php + +namespace OAuth2\OpenID\Controller; + +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** + * This controller is called when the user claims for OpenID Connect's + * UserInfo endpoint should be returned. + * + * ex: + * > $response = new OAuth2\Response(); + * > $userInfoController->handleUserInfoRequest( + * > OAuth2\Request::createFromGlobals(), + * > $response; + * > $response->send(); + * + */ +interface UserInfoControllerInterface +{ + public function handleUserInfoRequest(RequestInterface $request, ResponseInterface $response); +} diff --git a/library/oauth2/src/OAuth2/OpenID/GrantType/AuthorizationCode.php b/library/oauth2/src/OAuth2/OpenID/GrantType/AuthorizationCode.php new file mode 100644 index 000000000..8ed1edc26 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/GrantType/AuthorizationCode.php @@ -0,0 +1,33 @@ +<?php + +namespace OAuth2\OpenID\GrantType; + +use OAuth2\GrantType\AuthorizationCode as BaseAuthorizationCode; +use OAuth2\ResponseType\AccessTokenInterface; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class AuthorizationCode extends BaseAuthorizationCode +{ + public function createAccessToken(AccessTokenInterface $accessToken, $client_id, $user_id, $scope) + { + $includeRefreshToken = true; + if (isset($this->authCode['id_token'])) { + // OpenID Connect requests include the refresh token only if the + // offline_access scope has been requested and granted. + $scopes = explode(' ', trim($scope)); + $includeRefreshToken = in_array('offline_access', $scopes); + } + + $token = $accessToken->createAccessToken($client_id, $user_id, $scope, $includeRefreshToken); + if (isset($this->authCode['id_token'])) { + $token['id_token'] = $this->authCode['id_token']; + } + + $this->storage->expireAuthorizationCode($this->authCode['code']); + + return $token; + } +} diff --git a/library/oauth2/src/OAuth2/OpenID/ResponseType/AuthorizationCode.php b/library/oauth2/src/OAuth2/OpenID/ResponseType/AuthorizationCode.php new file mode 100644 index 000000000..8971954c5 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/ResponseType/AuthorizationCode.php @@ -0,0 +1,60 @@ +<?php + +namespace OAuth2\OpenID\ResponseType; + +use OAuth2\ResponseType\AuthorizationCode as BaseAuthorizationCode; +use OAuth2\OpenID\Storage\AuthorizationCodeInterface as AuthorizationCodeStorageInterface; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class AuthorizationCode extends BaseAuthorizationCode implements AuthorizationCodeInterface +{ + public function __construct(AuthorizationCodeStorageInterface $storage, array $config = array()) + { + parent::__construct($storage, $config); + } + + public function getAuthorizeResponse($params, $user_id = null) + { + // build the URL to redirect to + $result = array('query' => array()); + + $params += array('scope' => null, 'state' => null, 'id_token' => null); + + $result['query']['code'] = $this->createAuthorizationCode($params['client_id'], $user_id, $params['redirect_uri'], $params['scope'], $params['id_token']); + + if (isset($params['state'])) { + $result['query']['state'] = $params['state']; + } + + return array($params['redirect_uri'], $result); + } + + /** + * Handle the creation of the authorization code. + * + * @param $client_id + * Client identifier related to the authorization code + * @param $user_id + * User ID associated with the authorization code + * @param $redirect_uri + * An absolute URI to which the authorization server will redirect the + * user-agent to when the end-user authorization step is completed. + * @param $scope + * (optional) Scopes to be stored in space-separated string. + * @param $id_token + * (optional) The OpenID Connect id_token. + * + * @see http://tools.ietf.org/html/rfc6749#section-4 + * @ingroup oauth2_section_4 + */ + public function createAuthorizationCode($client_id, $user_id, $redirect_uri, $scope = null, $id_token = null) + { + $code = $this->generateAuthorizationCode(); + $this->storage->setAuthorizationCode($code, $client_id, $user_id, $redirect_uri, time() + $this->config['auth_code_lifetime'], $scope, $id_token); + + return $code; + } +} diff --git a/library/oauth2/src/OAuth2/OpenID/ResponseType/AuthorizationCodeInterface.php b/library/oauth2/src/OAuth2/OpenID/ResponseType/AuthorizationCodeInterface.php new file mode 100644 index 000000000..ea4779255 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/ResponseType/AuthorizationCodeInterface.php @@ -0,0 +1,27 @@ +<?php + +namespace OAuth2\OpenID\ResponseType; + +use OAuth2\ResponseType\AuthorizationCodeInterface as BaseAuthorizationCodeInterface; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface AuthorizationCodeInterface extends BaseAuthorizationCodeInterface +{ + /** + * Handle the creation of the authorization code. + * + * @param $client_id Client identifier related to the authorization code + * @param $user_id User ID associated with the authorization code + * @param $redirect_uri An absolute URI to which the authorization server will redirect the + * user-agent to when the end-user authorization step is completed. + * @param $scope OPTIONAL Scopes to be stored in space-separated string. + * @param $id_token OPTIONAL The OpenID Connect id_token. + * + * @see http://tools.ietf.org/html/rfc6749#section-4 + * @ingroup oauth2_section_4 + */ + public function createAuthorizationCode($client_id, $user_id, $redirect_uri, $scope = null, $id_token = null); +} diff --git a/library/oauth2/src/OAuth2/OpenID/ResponseType/CodeIdToken.php b/library/oauth2/src/OAuth2/OpenID/ResponseType/CodeIdToken.php new file mode 100644 index 000000000..ac7764d6c --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/ResponseType/CodeIdToken.php @@ -0,0 +1,24 @@ +<?php + +namespace OAuth2\OpenID\ResponseType; + +class CodeIdToken implements CodeIdTokenInterface +{ + protected $authCode; + protected $idToken; + + public function __construct(AuthorizationCodeInterface $authCode, IdTokenInterface $idToken) + { + $this->authCode = $authCode; + $this->idToken = $idToken; + } + + public function getAuthorizeResponse($params, $user_id = null) + { + $result = $this->authCode->getAuthorizeResponse($params, $user_id); + $resultIdToken = $this->idToken->getAuthorizeResponse($params, $user_id); + $result[1]['query']['id_token'] = $resultIdToken[1]['fragment']['id_token']; + + return $result; + } +} diff --git a/library/oauth2/src/OAuth2/OpenID/ResponseType/CodeIdTokenInterface.php b/library/oauth2/src/OAuth2/OpenID/ResponseType/CodeIdTokenInterface.php new file mode 100644 index 000000000..629adcca8 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/ResponseType/CodeIdTokenInterface.php @@ -0,0 +1,9 @@ +<?php + +namespace OAuth2\OpenID\ResponseType; + +use OAuth2\ResponseType\ResponseTypeInterface; + +interface CodeIdTokenInterface extends ResponseTypeInterface +{ +} diff --git a/library/oauth2/src/OAuth2/OpenID/ResponseType/IdToken.php b/library/oauth2/src/OAuth2/OpenID/ResponseType/IdToken.php new file mode 100644 index 000000000..97777fbf2 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/ResponseType/IdToken.php @@ -0,0 +1,124 @@ +<?php + +namespace OAuth2\OpenID\ResponseType; + +use OAuth2\Encryption\EncryptionInterface; +use OAuth2\Encryption\Jwt; +use OAuth2\Storage\PublicKeyInterface; +use OAuth2\OpenID\Storage\UserClaimsInterface; + +class IdToken implements IdTokenInterface +{ + protected $userClaimsStorage; + protected $publicKeyStorage; + protected $config; + protected $encryptionUtil; + + public function __construct(UserClaimsInterface $userClaimsStorage, PublicKeyInterface $publicKeyStorage, array $config = array(), EncryptionInterface $encryptionUtil = null) + { + $this->userClaimsStorage = $userClaimsStorage; + $this->publicKeyStorage = $publicKeyStorage; + if (is_null($encryptionUtil)) { + $encryptionUtil = new Jwt(); + } + $this->encryptionUtil = $encryptionUtil; + + if (!isset($config['issuer'])) { + throw new \LogicException('config parameter "issuer" must be set'); + } + $this->config = array_merge(array( + 'id_lifetime' => 3600, + ), $config); + } + + public function getAuthorizeResponse($params, $userInfo = null) + { + // build the URL to redirect to + $result = array('query' => array()); + $params += array('scope' => null, 'state' => null, 'nonce' => null); + + // create the id token. + list($user_id, $auth_time) = $this->getUserIdAndAuthTime($userInfo); + $userClaims = $this->userClaimsStorage->getUserClaims($user_id, $params['scope']); + + $id_token = $this->createIdToken($params['client_id'], $userInfo, $params['nonce'], $userClaims, null); + $result["fragment"] = array('id_token' => $id_token); + if (isset($params['state'])) { + $result["fragment"]["state"] = $params['state']; + } + + return array($params['redirect_uri'], $result); + } + + public function createIdToken($client_id, $userInfo, $nonce = null, $userClaims = null, $access_token = null) + { + // pull auth_time from user info if supplied + list($user_id, $auth_time) = $this->getUserIdAndAuthTime($userInfo); + + $token = array( + 'iss' => $this->config['issuer'], + 'sub' => $user_id, + 'aud' => $client_id, + 'iat' => time(), + 'exp' => time() + $this->config['id_lifetime'], + 'auth_time' => $auth_time, + ); + + if ($nonce) { + $token['nonce'] = $nonce; + } + + if ($userClaims) { + $token += $userClaims; + } + + if ($access_token) { + $token['at_hash'] = $this->createAtHash($access_token, $client_id); + } + + return $this->encodeToken($token, $client_id); + } + + protected function createAtHash($access_token, $client_id = null) + { + // maps HS256 and RS256 to sha256, etc. + $algorithm = $this->publicKeyStorage->getEncryptionAlgorithm($client_id); + $hash_algorithm = 'sha' . substr($algorithm, 2); + $hash = hash($hash_algorithm, $access_token, true); + $at_hash = substr($hash, 0, strlen($hash) / 2); + + return $this->encryptionUtil->urlSafeB64Encode($at_hash); + } + + protected function encodeToken(array $token, $client_id = null) + { + $private_key = $this->publicKeyStorage->getPrivateKey($client_id); + $algorithm = $this->publicKeyStorage->getEncryptionAlgorithm($client_id); + + return $this->encryptionUtil->encode($token, $private_key, $algorithm); + } + + private function getUserIdAndAuthTime($userInfo) + { + $auth_time = null; + + // support an array for user_id / auth_time + if (is_array($userInfo)) { + if (!isset($userInfo['user_id'])) { + throw new \LogicException('if $user_id argument is an array, user_id index must be set'); + } + + $auth_time = isset($userInfo['auth_time']) ? $userInfo['auth_time'] : null; + $user_id = $userInfo['user_id']; + } else { + $user_id = $userInfo; + } + + if (is_null($auth_time)) { + $auth_time = time(); + } + + // userInfo is a scalar, and so this is the $user_id. Auth Time is null + return array($user_id, $auth_time); + } +} diff --git a/library/oauth2/src/OAuth2/OpenID/ResponseType/IdTokenInterface.php b/library/oauth2/src/OAuth2/OpenID/ResponseType/IdTokenInterface.php new file mode 100644 index 000000000..0bd2f8391 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/ResponseType/IdTokenInterface.php @@ -0,0 +1,29 @@ +<?php + +namespace OAuth2\OpenID\ResponseType; + +use OAuth2\ResponseType\ResponseTypeInterface; + +interface IdTokenInterface extends ResponseTypeInterface +{ + /** + * Create the id token. + * + * If Authorization Code Flow is used, the id_token is generated when the + * authorization code is issued, and later returned from the token endpoint + * together with the access_token. + * If the Implicit Flow is used, the token and id_token are generated and + * returned together. + * + * @param string $client_id The client id. + * @param string $user_id The user id. + * @param string $nonce OPTIONAL The nonce. + * @param string $userClaims OPTIONAL Claims about the user. + * @param string $access_token OPTIONAL The access token, if known. + * + * @return string The ID Token represented as a JSON Web Token (JWT). + * + * @see http://openid.net/specs/openid-connect-core-1_0.html#IDToken + */ + public function createIdToken($client_id, $userInfo, $nonce = null, $userClaims = null, $access_token = null); +} diff --git a/library/oauth2/src/OAuth2/OpenID/ResponseType/IdTokenToken.php b/library/oauth2/src/OAuth2/OpenID/ResponseType/IdTokenToken.php new file mode 100644 index 000000000..f0c59799b --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/ResponseType/IdTokenToken.php @@ -0,0 +1,27 @@ +<?php + +namespace OAuth2\OpenID\ResponseType; + +use OAuth2\ResponseType\AccessTokenInterface; + +class IdTokenToken implements IdTokenTokenInterface +{ + protected $accessToken; + protected $idToken; + + public function __construct(AccessTokenInterface $accessToken, IdTokenInterface $idToken) + { + $this->accessToken = $accessToken; + $this->idToken = $idToken; + } + + public function getAuthorizeResponse($params, $user_id = null) + { + $result = $this->accessToken->getAuthorizeResponse($params, $user_id); + $access_token = $result[1]['fragment']['access_token']; + $id_token = $this->idToken->createIdToken($params['client_id'], $user_id, $params['nonce'], null, $access_token); + $result[1]['fragment']['id_token'] = $id_token; + + return $result; + } +} diff --git a/library/oauth2/src/OAuth2/OpenID/ResponseType/IdTokenTokenInterface.php b/library/oauth2/src/OAuth2/OpenID/ResponseType/IdTokenTokenInterface.php new file mode 100644 index 000000000..ac13e2032 --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/ResponseType/IdTokenTokenInterface.php @@ -0,0 +1,9 @@ +<?php + +namespace OAuth2\OpenID\ResponseType; + +use OAuth2\ResponseType\ResponseTypeInterface; + +interface IdTokenTokenInterface extends ResponseTypeInterface +{ +} diff --git a/library/oauth2/src/OAuth2/OpenID/Storage/AuthorizationCodeInterface.php b/library/oauth2/src/OAuth2/OpenID/Storage/AuthorizationCodeInterface.php new file mode 100644 index 000000000..51dd867ec --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/Storage/AuthorizationCodeInterface.php @@ -0,0 +1,37 @@ +<?php + +namespace OAuth2\OpenID\Storage; + +use OAuth2\Storage\AuthorizationCodeInterface as BaseAuthorizationCodeInterface; +/** + * Implement this interface to specify where the OAuth2 Server + * should get/save authorization codes for the "Authorization Code" + * grant type + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface AuthorizationCodeInterface extends BaseAuthorizationCodeInterface +{ + /** + * Take the provided authorization code values and store them somewhere. + * + * This function should be the storage counterpart to getAuthCode(). + * + * If storage fails for some reason, we're not currently checking for + * any sort of success/failure, so you should bail out of the script + * and provide a descriptive fail message. + * + * Required for OAuth2::GRANT_TYPE_AUTH_CODE. + * + * @param $code authorization code to be stored. + * @param $client_id client identifier to be stored. + * @param $user_id user identifier to be stored. + * @param string $redirect_uri redirect URI(s) to be stored in a space-separated string. + * @param int $expires expiration to be stored as a Unix timestamp. + * @param string $scope OPTIONAL scopes to be stored in space-separated string. + * @param string $id_token OPTIONAL the OpenID Connect id_token. + * + * @ingroup oauth2_section_4 + */ + public function setAuthorizationCode($code, $client_id, $user_id, $redirect_uri, $expires, $scope = null, $id_token = null); +} diff --git a/library/oauth2/src/OAuth2/OpenID/Storage/UserClaimsInterface.php b/library/oauth2/src/OAuth2/OpenID/Storage/UserClaimsInterface.php new file mode 100644 index 000000000..f230bef9e --- /dev/null +++ b/library/oauth2/src/OAuth2/OpenID/Storage/UserClaimsInterface.php @@ -0,0 +1,38 @@ +<?php + +namespace OAuth2\OpenID\Storage; + +/** + * Implement this interface to specify where the OAuth2 Server + * should retrieve user claims for the OpenID Connect id_token. + */ +interface UserClaimsInterface +{ + // valid scope values to pass into the user claims API call + const VALID_CLAIMS = 'profile email address phone'; + + // fields returned for the claims above + const PROFILE_CLAIM_VALUES = 'name family_name given_name middle_name nickname preferred_username profile picture website gender birthdate zoneinfo locale updated_at'; + const EMAIL_CLAIM_VALUES = 'email email_verified'; + const ADDRESS_CLAIM_VALUES = 'formatted street_address locality region postal_code country'; + const PHONE_CLAIM_VALUES = 'phone_number phone_number_verified'; + + /** + * Return claims about the provided user id. + * + * Groups of claims are returned based on the requested scopes. No group + * is required, and no claim is required. + * + * @param $user_id + * The id of the user for which claims should be returned. + * @param $scope + * The requested scope. + * Scopes with matching claims: profile, email, address, phone. + * + * @return + * An array in the claim => value format. + * + * @see http://openid.net/specs/openid-connect-core-1_0.html#ScopeClaims + */ + public function getUserClaims($user_id, $scope); +} diff --git a/library/oauth2/src/OAuth2/Request.php b/library/oauth2/src/OAuth2/Request.php new file mode 100644 index 000000000..c92cee821 --- /dev/null +++ b/library/oauth2/src/OAuth2/Request.php @@ -0,0 +1,213 @@ +<?php + +namespace OAuth2; + +/** + * OAuth2\Request + * This class is taken from the Symfony2 Framework and is part of the Symfony package. + * See Symfony\Component\HttpFoundation\Request (https://github.com/symfony/symfony) + */ +class Request implements RequestInterface +{ + public $attributes; + public $request; + public $query; + public $server; + public $files; + public $cookies; + public $headers; + public $content; + + /** + * Constructor. + * + * @param array $query The GET parameters + * @param array $request The POST parameters + * @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...) + * @param array $cookies The COOKIE parameters + * @param array $files The FILES parameters + * @param array $server The SERVER parameters + * @param string $content The raw body data + * + * @api + */ + public function __construct(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $content = null, array $headers = null) + { + $this->initialize($query, $request, $attributes, $cookies, $files, $server, $content, $headers); + } + + /** + * Sets the parameters for this request. + * + * This method also re-initializes all properties. + * + * @param array $query The GET parameters + * @param array $request The POST parameters + * @param array $attributes The request attributes (parameters parsed from the PATH_INFO, ...) + * @param array $cookies The COOKIE parameters + * @param array $files The FILES parameters + * @param array $server The SERVER parameters + * @param string $content The raw body data + * + * @api + */ + public function initialize(array $query = array(), array $request = array(), array $attributes = array(), array $cookies = array(), array $files = array(), array $server = array(), $content = null, array $headers = null) + { + $this->request = $request; + $this->query = $query; + $this->attributes = $attributes; + $this->cookies = $cookies; + $this->files = $files; + $this->server = $server; + $this->content = $content; + $this->headers = is_null($headers) ? $this->getHeadersFromServer($this->server) : $headers; + } + + public function query($name, $default = null) + { + return isset($this->query[$name]) ? $this->query[$name] : $default; + } + + public function request($name, $default = null) + { + return isset($this->request[$name]) ? $this->request[$name] : $default; + } + + public function server($name, $default = null) + { + return isset($this->server[$name]) ? $this->server[$name] : $default; + } + + public function headers($name, $default = null) + { + $headers = array_change_key_case($this->headers); + $name = strtolower($name); + + return isset($headers[$name]) ? $headers[$name] : $default; + } + + public function getAllQueryParameters() + { + return $this->query; + } + + /** + * Returns the request body content. + * + * @param Boolean $asResource If true, a resource will be returned + * + * @return string|resource The request body content or a resource to read the body stream. + */ + public function getContent($asResource = false) + { + if (false === $this->content || (true === $asResource && null !== $this->content)) { + throw new \LogicException('getContent() can only be called once when using the resource return type.'); + } + + if (true === $asResource) { + $this->content = false; + + return fopen('php://input', 'rb'); + } + + if (null === $this->content) { + $this->content = file_get_contents('php://input'); + } + + return $this->content; + } + + private function getHeadersFromServer($server) + { + $headers = array(); + foreach ($server as $key => $value) { + if (0 === strpos($key, 'HTTP_')) { + $headers[substr($key, 5)] = $value; + } + // CONTENT_* are not prefixed with HTTP_ + elseif (in_array($key, array('CONTENT_LENGTH', 'CONTENT_MD5', 'CONTENT_TYPE'))) { + $headers[$key] = $value; + } + } + + if (isset($server['PHP_AUTH_USER'])) { + $headers['PHP_AUTH_USER'] = $server['PHP_AUTH_USER']; + $headers['PHP_AUTH_PW'] = isset($server['PHP_AUTH_PW']) ? $server['PHP_AUTH_PW'] : ''; + } else { + /* + * php-cgi under Apache does not pass HTTP Basic user/pass to PHP by default + * For this workaround to work, add this line to your .htaccess file: + * RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}] + * + * A sample .htaccess file: + * RewriteEngine On + * RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}] + * RewriteCond %{REQUEST_FILENAME} !-f + * RewriteRule ^(.*)$ app.php [QSA,L] + */ + + $authorizationHeader = null; + if (isset($server['HTTP_AUTHORIZATION'])) { + $authorizationHeader = $server['HTTP_AUTHORIZATION']; + } elseif (isset($server['REDIRECT_HTTP_AUTHORIZATION'])) { + $authorizationHeader = $server['REDIRECT_HTTP_AUTHORIZATION']; + } elseif (function_exists('apache_request_headers')) { + $requestHeaders = (array) apache_request_headers(); + + // Server-side fix for bug in old Android versions (a nice side-effect of this fix means we don't care about capitalization for Authorization) + $requestHeaders = array_combine(array_map('ucwords', array_keys($requestHeaders)), array_values($requestHeaders)); + + if (isset($requestHeaders['Authorization'])) { + $authorizationHeader = trim($requestHeaders['Authorization']); + } + } + + if (null !== $authorizationHeader) { + $headers['AUTHORIZATION'] = $authorizationHeader; + // Decode AUTHORIZATION header into PHP_AUTH_USER and PHP_AUTH_PW when authorization header is basic + if (0 === stripos($authorizationHeader, 'basic')) { + $exploded = explode(':', base64_decode(substr($authorizationHeader, 6))); + if (count($exploded) == 2) { + list($headers['PHP_AUTH_USER'], $headers['PHP_AUTH_PW']) = $exploded; + } + } + } + } + + // PHP_AUTH_USER/PHP_AUTH_PW + if (isset($headers['PHP_AUTH_USER'])) { + $headers['AUTHORIZATION'] = 'Basic '.base64_encode($headers['PHP_AUTH_USER'].':'.$headers['PHP_AUTH_PW']); + } + + return $headers; + } + + /** + * Creates a new request with values from PHP's super globals. + * + * @return Request A new request + * + * @api + */ + public static function createFromGlobals() + { + $class = get_called_class(); + $request = new $class($_GET, $_POST, array(), $_COOKIE, $_FILES, $_SERVER); + + $contentType = $request->server('CONTENT_TYPE', ''); + $requestMethod = $request->server('REQUEST_METHOD', 'GET'); + if (0 === strpos($contentType, 'application/x-www-form-urlencoded') + && in_array(strtoupper($requestMethod), array('PUT', 'DELETE')) + ) { + parse_str($request->getContent(), $data); + $request->request = $data; + } elseif (0 === strpos($contentType, 'application/json') + && in_array(strtoupper($requestMethod), array('POST', 'PUT', 'DELETE')) + ) { + $data = json_decode($request->getContent(), true); + $request->request = $data; + } + + return $request; + } +} diff --git a/library/oauth2/src/OAuth2/RequestInterface.php b/library/oauth2/src/OAuth2/RequestInterface.php new file mode 100644 index 000000000..8a70d5fad --- /dev/null +++ b/library/oauth2/src/OAuth2/RequestInterface.php @@ -0,0 +1,16 @@ +<?php + +namespace OAuth2; + +interface RequestInterface +{ + public function query($name, $default = null); + + public function request($name, $default = null); + + public function server($name, $default = null); + + public function headers($name, $default = null); + + public function getAllQueryParameters(); +} diff --git a/library/oauth2/src/OAuth2/Response.php b/library/oauth2/src/OAuth2/Response.php new file mode 100644 index 000000000..d8eabe79e --- /dev/null +++ b/library/oauth2/src/OAuth2/Response.php @@ -0,0 +1,369 @@ +<?php + +namespace OAuth2; + +/** + * Class to handle OAuth2 Responses in a graceful way. Use this interface + * to output the proper OAuth2 responses. + * + * @see OAuth2\ResponseInterface + * + * This class borrows heavily from the Symfony2 Framework and is part of the symfony package + * @see Symfony\Component\HttpFoundation\Request (https://github.com/symfony/symfony) + */ +class Response implements ResponseInterface +{ + public $version; + protected $statusCode = 200; + protected $statusText; + protected $parameters = array(); + protected $httpHeaders = array(); + + public static $statusTexts = array( + 100 => 'Continue', + 101 => 'Switching Protocols', + 200 => 'OK', + 201 => 'Created', + 202 => 'Accepted', + 203 => 'Non-Authoritative Information', + 204 => 'No Content', + 205 => 'Reset Content', + 206 => 'Partial Content', + 300 => 'Multiple Choices', + 301 => 'Moved Permanently', + 302 => 'Found', + 303 => 'See Other', + 304 => 'Not Modified', + 305 => 'Use Proxy', + 307 => 'Temporary Redirect', + 400 => 'Bad Request', + 401 => 'Unauthorized', + 402 => 'Payment Required', + 403 => 'Forbidden', + 404 => 'Not Found', + 405 => 'Method Not Allowed', + 406 => 'Not Acceptable', + 407 => 'Proxy Authentication Required', + 408 => 'Request Timeout', + 409 => 'Conflict', + 410 => 'Gone', + 411 => 'Length Required', + 412 => 'Precondition Failed', + 413 => 'Request Entity Too Large', + 414 => 'Request-URI Too Long', + 415 => 'Unsupported Media Type', + 416 => 'Requested Range Not Satisfiable', + 417 => 'Expectation Failed', + 418 => 'I\'m a teapot', + 500 => 'Internal Server Error', + 501 => 'Not Implemented', + 502 => 'Bad Gateway', + 503 => 'Service Unavailable', + 504 => 'Gateway Timeout', + 505 => 'HTTP Version Not Supported', + ); + + public function __construct($parameters = array(), $statusCode = 200, $headers = array()) + { + $this->setParameters($parameters); + $this->setStatusCode($statusCode); + $this->setHttpHeaders($headers); + $this->version = '1.1'; + } + + /** + * Converts the response object to string containing all headers and the response content. + * + * @return string The response with headers and content + */ + public function __toString() + { + $headers = array(); + foreach ($this->httpHeaders as $name => $value) { + $headers[$name] = (array) $value; + } + + return + sprintf('HTTP/%s %s %s', $this->version, $this->statusCode, $this->statusText)."\r\n". + $this->getHttpHeadersAsString($headers)."\r\n". + $this->getResponseBody(); + } + + /** + * Returns the build header line. + * + * @param string $name The header name + * @param string $value The header value + * + * @return string The built header line + */ + protected function buildHeader($name, $value) + { + return sprintf("%s: %s\n", $name, $value); + } + + public function getStatusCode() + { + return $this->statusCode; + } + + public function setStatusCode($statusCode, $text = null) + { + $this->statusCode = (int) $statusCode; + if ($this->isInvalid()) { + throw new \InvalidArgumentException(sprintf('The HTTP status code "%s" is not valid.', $statusCode)); + } + + $this->statusText = false === $text ? '' : (null === $text ? self::$statusTexts[$this->statusCode] : $text); + } + + public function getStatusText() + { + return $this->statusText; + } + + public function getParameters() + { + return $this->parameters; + } + + public function setParameters(array $parameters) + { + $this->parameters = $parameters; + } + + public function addParameters(array $parameters) + { + $this->parameters = array_merge($this->parameters, $parameters); + } + + public function getParameter($name, $default = null) + { + return isset($this->parameters[$name]) ? $this->parameters[$name] : $default; + } + + public function setParameter($name, $value) + { + $this->parameters[$name] = $value; + } + + public function setHttpHeaders(array $httpHeaders) + { + $this->httpHeaders = $httpHeaders; + } + + public function setHttpHeader($name, $value) + { + $this->httpHeaders[$name] = $value; + } + + public function addHttpHeaders(array $httpHeaders) + { + $this->httpHeaders = array_merge($this->httpHeaders, $httpHeaders); + } + + public function getHttpHeaders() + { + return $this->httpHeaders; + } + + public function getHttpHeader($name, $default = null) + { + return isset($this->httpHeaders[$name]) ? $this->httpHeaders[$name] : $default; + } + + public function getResponseBody($format = 'json') + { + switch ($format) { + case 'json': + return json_encode($this->parameters); + case 'xml': + // this only works for single-level arrays + $xml = new \SimpleXMLElement('<response/>'); + foreach ($this->parameters as $key => $param) { + $xml->addChild($key, $param); + } + + return $xml->asXML(); + } + + throw new \InvalidArgumentException(sprintf('The format %s is not supported', $format)); + + } + + public function send($format = 'json') + { + // headers have already been sent by the developer + if (headers_sent()) { + return; + } + + switch ($format) { + case 'json': + $this->setHttpHeader('Content-Type', 'application/json'); + break; + case 'xml': + $this->setHttpHeader('Content-Type', 'text/xml'); + break; + } + // status + header(sprintf('HTTP/%s %s %s', $this->version, $this->statusCode, $this->statusText)); + + foreach ($this->getHttpHeaders() as $name => $header) { + header(sprintf('%s: %s', $name, $header)); + } + echo $this->getResponseBody($format); + } + + public function setError($statusCode, $error, $errorDescription = null, $errorUri = null) + { + $parameters = array( + 'error' => $error, + 'error_description' => $errorDescription, + ); + + if (!is_null($errorUri)) { + if (strlen($errorUri) > 0 && $errorUri[0] == '#') { + // we are referencing an oauth bookmark (for brevity) + $errorUri = 'http://tools.ietf.org/html/rfc6749' . $errorUri; + } + $parameters['error_uri'] = $errorUri; + } + + $httpHeaders = array( + 'Cache-Control' => 'no-store' + ); + + $this->setStatusCode($statusCode); + $this->addParameters($parameters); + $this->addHttpHeaders($httpHeaders); + + if (!$this->isClientError() && !$this->isServerError()) { + throw new \InvalidArgumentException(sprintf('The HTTP status code is not an error ("%s" given).', $statusCode)); + } + } + + public function setRedirect($statusCode, $url, $state = null, $error = null, $errorDescription = null, $errorUri = null) + { + if (empty($url)) { + throw new \InvalidArgumentException('Cannot redirect to an empty URL.'); + } + + $parameters = array(); + + if (!is_null($state)) { + $parameters['state'] = $state; + } + + if (!is_null($error)) { + $this->setError(400, $error, $errorDescription, $errorUri); + } + $this->setStatusCode($statusCode); + $this->addParameters($parameters); + + if (count($this->parameters) > 0) { + // add parameters to URL redirection + $parts = parse_url($url); + $sep = isset($parts['query']) && count($parts['query']) > 0 ? '&' : '?'; + $url .= $sep . http_build_query($this->parameters); + } + + $this->addHttpHeaders(array('Location' => $url)); + + if (!$this->isRedirection()) { + throw new \InvalidArgumentException(sprintf('The HTTP status code is not a redirect ("%s" given).', $statusCode)); + } + } + + // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html + /** + * @return Boolean + * + * @api + */ + public function isInvalid() + { + return $this->statusCode < 100 || $this->statusCode >= 600; + } + + /** + * @return Boolean + * + * @api + */ + public function isInformational() + { + return $this->statusCode >= 100 && $this->statusCode < 200; + } + + /** + * @return Boolean + * + * @api + */ + public function isSuccessful() + { + return $this->statusCode >= 200 && $this->statusCode < 300; + } + + /** + * @return Boolean + * + * @api + */ + public function isRedirection() + { + return $this->statusCode >= 300 && $this->statusCode < 400; + } + + /** + * @return Boolean + * + * @api + */ + public function isClientError() + { + return $this->statusCode >= 400 && $this->statusCode < 500; + } + + /** + * @return Boolean + * + * @api + */ + public function isServerError() + { + return $this->statusCode >= 500 && $this->statusCode < 600; + } + + /* + * Functions from Symfony2 HttpFoundation - output pretty header + */ + private function getHttpHeadersAsString($headers) + { + if (count($headers) == 0) { + return ''; + } + + $max = max(array_map('strlen', array_keys($headers))) + 1; + $content = ''; + ksort($headers); + foreach ($headers as $name => $values) { + foreach ($values as $value) { + $content .= sprintf("%-{$max}s %s\r\n", $this->beautifyHeaderName($name).':', $value); + } + } + + return $content; + } + + private function beautifyHeaderName($name) + { + return preg_replace_callback('/\-(.)/', array($this, 'beautifyCallback'), ucfirst($name)); + } + + private function beautifyCallback($match) + { + return '-'.strtoupper($match[1]); + } +} diff --git a/library/oauth2/src/OAuth2/ResponseInterface.php b/library/oauth2/src/OAuth2/ResponseInterface.php new file mode 100644 index 000000000..c99b5f7d1 --- /dev/null +++ b/library/oauth2/src/OAuth2/ResponseInterface.php @@ -0,0 +1,24 @@ +<?php + +namespace OAuth2; + +/** + * Interface which represents an object response. Meant to handle and display the proper OAuth2 Responses + * for errors and successes + * + * @see OAuth2\Response + */ +interface ResponseInterface +{ + public function addParameters(array $parameters); + + public function addHttpHeaders(array $httpHeaders); + + public function setStatusCode($statusCode); + + public function setError($statusCode, $name, $description = null, $uri = null); + + public function setRedirect($statusCode, $url, $state = null, $error = null, $errorDescription = null, $errorUri = null); + + public function getParameter($name); +} diff --git a/library/oauth2/src/OAuth2/ResponseType/AccessToken.php b/library/oauth2/src/OAuth2/ResponseType/AccessToken.php new file mode 100644 index 000000000..b235ad0c5 --- /dev/null +++ b/library/oauth2/src/OAuth2/ResponseType/AccessToken.php @@ -0,0 +1,194 @@ +<?php + +namespace OAuth2\ResponseType; + +use OAuth2\Storage\AccessTokenInterface as AccessTokenStorageInterface; +use OAuth2\Storage\RefreshTokenInterface; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class AccessToken implements AccessTokenInterface +{ + protected $tokenStorage; + protected $refreshStorage; + protected $config; + + /** + * @param OAuth2\Storage\AccessTokenInterface $tokenStorage REQUIRED Storage class for saving access token information + * @param OAuth2\Storage\RefreshTokenInterface $refreshStorage OPTIONAL Storage class for saving refresh token information + * @param array $config OPTIONAL Configuration options for the server + * <code> + * $config = array( + * 'token_type' => 'bearer', // token type identifier + * 'access_lifetime' => 3600, // time before access token expires + * 'refresh_token_lifetime' => 1209600, // time before refresh token expires + * ); + * </endcode> + */ + public function __construct(AccessTokenStorageInterface $tokenStorage, RefreshTokenInterface $refreshStorage = null, array $config = array()) + { + $this->tokenStorage = $tokenStorage; + $this->refreshStorage = $refreshStorage; + + $this->config = array_merge(array( + 'token_type' => 'bearer', + 'access_lifetime' => 3600, + 'refresh_token_lifetime' => 1209600, + ), $config); + } + + public function getAuthorizeResponse($params, $user_id = null) + { + // build the URL to redirect to + $result = array('query' => array()); + + $params += array('scope' => null, 'state' => null); + + /* + * a refresh token MUST NOT be included in the fragment + * + * @see http://tools.ietf.org/html/rfc6749#section-4.2.2 + */ + $includeRefreshToken = false; + $result["fragment"] = $this->createAccessToken($params['client_id'], $user_id, $params['scope'], $includeRefreshToken); + + if (isset($params['state'])) { + $result["fragment"]["state"] = $params['state']; + } + + return array($params['redirect_uri'], $result); + } + + /** + * Handle the creation of access token, also issue refresh token if supported / desirable. + * + * @param $client_id client identifier related to the access token. + * @param $user_id user ID associated with the access token + * @param $scope OPTIONAL scopes to be stored in space-separated string. + * @param bool $includeRefreshToken if true, a new refresh_token will be added to the response + * + * @see http://tools.ietf.org/html/rfc6749#section-5 + * @ingroup oauth2_section_5 + */ + public function createAccessToken($client_id, $user_id, $scope = null, $includeRefreshToken = true) + { + $token = array( + "access_token" => $this->generateAccessToken(), + "expires_in" => $this->config['access_lifetime'], + "token_type" => $this->config['token_type'], + "scope" => $scope + ); + + $this->tokenStorage->setAccessToken($token["access_token"], $client_id, $user_id, $this->config['access_lifetime'] ? time() + $this->config['access_lifetime'] : null, $scope); + + /* + * Issue a refresh token also, if we support them + * + * Refresh Tokens are considered supported if an instance of OAuth2\Storage\RefreshTokenInterface + * is supplied in the constructor + */ + if ($includeRefreshToken && $this->refreshStorage) { + $token["refresh_token"] = $this->generateRefreshToken(); + $expires = 0; + if ($this->config['refresh_token_lifetime'] > 0) { + $expires = time() + $this->config['refresh_token_lifetime']; + } + $this->refreshStorage->setRefreshToken($token['refresh_token'], $client_id, $user_id, $expires, $scope); + } + + return $token; + } + + /** + * Generates an unique access token. + * + * Implementing classes may want to override this function to implement + * other access token generation schemes. + * + * @return + * An unique access token. + * + * @ingroup oauth2_section_4 + */ + protected function generateAccessToken() + { + if (function_exists('mcrypt_create_iv')) { + $randomData = mcrypt_create_iv(20, MCRYPT_DEV_URANDOM); + if ($randomData !== false && strlen($randomData) === 20) { + return bin2hex($randomData); + } + } + if (function_exists('openssl_random_pseudo_bytes')) { + $randomData = openssl_random_pseudo_bytes(20); + if ($randomData !== false && strlen($randomData) === 20) { + return bin2hex($randomData); + } + } + if (@file_exists('/dev/urandom')) { // Get 100 bytes of random data + $randomData = file_get_contents('/dev/urandom', false, null, 0, 20); + if ($randomData !== false && strlen($randomData) === 20) { + return bin2hex($randomData); + } + } + // Last resort which you probably should just get rid of: + $randomData = mt_rand() . mt_rand() . mt_rand() . mt_rand() . microtime(true) . uniqid(mt_rand(), true); + + return substr(hash('sha512', $randomData), 0, 40); + } + + /** + * Generates an unique refresh token + * + * Implementing classes may want to override this function to implement + * other refresh token generation schemes. + * + * @return + * An unique refresh. + * + * @ingroup oauth2_section_4 + * @see OAuth2::generateAccessToken() + */ + protected function generateRefreshToken() + { + return $this->generateAccessToken(); // let's reuse the same scheme for token generation + } + + /** + * Handle the revoking of refresh tokens, and access tokens if supported / desirable + * RFC7009 specifies that "If the server is unable to locate the token using + * the given hint, it MUST extend its search across all of its supported token types" + * + * @param $token + * @param null $tokenTypeHint + * @return boolean + */ + public function revokeToken($token, $tokenTypeHint = null) + { + if ($tokenTypeHint == 'refresh_token') { + if ($this->refreshStorage && $revoked = $this->refreshStorage->unsetRefreshToken($token)) { + return true; + } + } + + /** @TODO remove in v2 */ + if (!method_exists($this->tokenStorage, 'unsetAccessToken')) { + throw new \RuntimeException( + sprintf('Token storage %s must implement unsetAccessToken method', get_class($this->tokenStorage) + )); + } + + $revoked = $this->tokenStorage->unsetAccessToken($token); + + // if a typehint is supplied and fails, try other storages + // @see https://tools.ietf.org/html/rfc7009#section-2.1 + if (!$revoked && $tokenTypeHint != 'refresh_token') { + if ($this->refreshStorage) { + $revoked = $this->refreshStorage->unsetRefreshToken($token); + } + } + + return $revoked; + } +} diff --git a/library/oauth2/src/OAuth2/ResponseType/AccessTokenInterface.php b/library/oauth2/src/OAuth2/ResponseType/AccessTokenInterface.php new file mode 100644 index 000000000..4bd3928d8 --- /dev/null +++ b/library/oauth2/src/OAuth2/ResponseType/AccessTokenInterface.php @@ -0,0 +1,34 @@ +<?php + +namespace OAuth2\ResponseType; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface AccessTokenInterface extends ResponseTypeInterface +{ + /** + * Handle the creation of access token, also issue refresh token if supported / desirable. + * + * @param $client_id client identifier related to the access token. + * @param $user_id user ID associated with the access token + * @param $scope OPTONAL scopes to be stored in space-separated string. + * @param bool $includeRefreshToken if true, a new refresh_token will be added to the response + * + * @see http://tools.ietf.org/html/rfc6749#section-5 + * @ingroup oauth2_section_5 + */ + public function createAccessToken($client_id, $user_id, $scope = null, $includeRefreshToken = true); + + /** + * Handle the revoking of refresh tokens, and access tokens if supported / desirable + * + * @param $token + * @param $tokenTypeHint + * @return mixed + * + * @todo v2.0 include this method in interface. Omitted to maintain BC in v1.x + */ + //public function revokeToken($token, $tokenTypeHint); +} diff --git a/library/oauth2/src/OAuth2/ResponseType/AuthorizationCode.php b/library/oauth2/src/OAuth2/ResponseType/AuthorizationCode.php new file mode 100644 index 000000000..6a305fd75 --- /dev/null +++ b/library/oauth2/src/OAuth2/ResponseType/AuthorizationCode.php @@ -0,0 +1,100 @@ +<?php + +namespace OAuth2\ResponseType; + +use OAuth2\Storage\AuthorizationCodeInterface as AuthorizationCodeStorageInterface; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class AuthorizationCode implements AuthorizationCodeInterface +{ + protected $storage; + protected $config; + + public function __construct(AuthorizationCodeStorageInterface $storage, array $config = array()) + { + $this->storage = $storage; + $this->config = array_merge(array( + 'enforce_redirect' => false, + 'auth_code_lifetime' => 30, + ), $config); + } + + public function getAuthorizeResponse($params, $user_id = null) + { + // build the URL to redirect to + $result = array('query' => array()); + + $params += array('scope' => null, 'state' => null); + + $result['query']['code'] = $this->createAuthorizationCode($params['client_id'], $user_id, $params['redirect_uri'], $params['scope']); + + if (isset($params['state'])) { + $result['query']['state'] = $params['state']; + } + + return array($params['redirect_uri'], $result); + } + + /** + * Handle the creation of the authorization code. + * + * @param $client_id + * Client identifier related to the authorization code + * @param $user_id + * User ID associated with the authorization code + * @param $redirect_uri + * An absolute URI to which the authorization server will redirect the + * user-agent to when the end-user authorization step is completed. + * @param $scope + * (optional) Scopes to be stored in space-separated string. + * + * @see http://tools.ietf.org/html/rfc6749#section-4 + * @ingroup oauth2_section_4 + */ + public function createAuthorizationCode($client_id, $user_id, $redirect_uri, $scope = null) + { + $code = $this->generateAuthorizationCode(); + $this->storage->setAuthorizationCode($code, $client_id, $user_id, $redirect_uri, time() + $this->config['auth_code_lifetime'], $scope); + + return $code; + } + + /** + * @return + * TRUE if the grant type requires a redirect_uri, FALSE if not + */ + public function enforceRedirect() + { + return $this->config['enforce_redirect']; + } + + /** + * Generates an unique auth code. + * + * Implementing classes may want to override this function to implement + * other auth code generation schemes. + * + * @return + * An unique auth code. + * + * @ingroup oauth2_section_4 + */ + protected function generateAuthorizationCode() + { + $tokenLen = 40; + if (function_exists('mcrypt_create_iv')) { + $randomData = mcrypt_create_iv(100, MCRYPT_DEV_URANDOM); + } elseif (function_exists('openssl_random_pseudo_bytes')) { + $randomData = openssl_random_pseudo_bytes(100); + } elseif (@file_exists('/dev/urandom')) { // Get 100 bytes of random data + $randomData = file_get_contents('/dev/urandom', false, null, 0, 100) . uniqid(mt_rand(), true); + } else { + $randomData = mt_rand() . mt_rand() . mt_rand() . mt_rand() . microtime(true) . uniqid(mt_rand(), true); + } + + return substr(hash('sha512', $randomData), 0, $tokenLen); + } +} diff --git a/library/oauth2/src/OAuth2/ResponseType/AuthorizationCodeInterface.php b/library/oauth2/src/OAuth2/ResponseType/AuthorizationCodeInterface.php new file mode 100644 index 000000000..df777e221 --- /dev/null +++ b/library/oauth2/src/OAuth2/ResponseType/AuthorizationCodeInterface.php @@ -0,0 +1,30 @@ +<?php + +namespace OAuth2\ResponseType; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface AuthorizationCodeInterface extends ResponseTypeInterface +{ + /** + * @return + * TRUE if the grant type requires a redirect_uri, FALSE if not + */ + public function enforceRedirect(); + + /** + * Handle the creation of the authorization code. + * + * @param $client_id client identifier related to the authorization code + * @param $user_id user id associated with the authorization code + * @param $redirect_uri an absolute URI to which the authorization server will redirect the + * user-agent to when the end-user authorization step is completed. + * @param $scope OPTIONAL scopes to be stored in space-separated string. + * + * @see http://tools.ietf.org/html/rfc6749#section-4 + * @ingroup oauth2_section_4 + */ + public function createAuthorizationCode($client_id, $user_id, $redirect_uri, $scope = null); +} diff --git a/library/oauth2/src/OAuth2/ResponseType/JwtAccessToken.php b/library/oauth2/src/OAuth2/ResponseType/JwtAccessToken.php new file mode 100644 index 000000000..3942fe41e --- /dev/null +++ b/library/oauth2/src/OAuth2/ResponseType/JwtAccessToken.php @@ -0,0 +1,124 @@ +<?php + +namespace OAuth2\ResponseType; + +use OAuth2\Encryption\EncryptionInterface; +use OAuth2\Encryption\Jwt; +use OAuth2\Storage\AccessTokenInterface as AccessTokenStorageInterface; +use OAuth2\Storage\RefreshTokenInterface; +use OAuth2\Storage\PublicKeyInterface; +use OAuth2\Storage\Memory; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class JwtAccessToken extends AccessToken +{ + protected $publicKeyStorage; + protected $encryptionUtil; + + /** + * @param $config + * - store_encrypted_token_string (bool true) + * whether the entire encrypted string is stored, + * or just the token ID is stored + */ + public function __construct(PublicKeyInterface $publicKeyStorage = null, AccessTokenStorageInterface $tokenStorage = null, RefreshTokenInterface $refreshStorage = null, array $config = array(), EncryptionInterface $encryptionUtil = null) + { + $this->publicKeyStorage = $publicKeyStorage; + $config = array_merge(array( + 'store_encrypted_token_string' => true, + 'issuer' => '' + ), $config); + if (is_null($tokenStorage)) { + // a pass-thru, so we can call the parent constructor + $tokenStorage = new Memory(); + } + if (is_null($encryptionUtil)) { + $encryptionUtil = new Jwt(); + } + $this->encryptionUtil = $encryptionUtil; + parent::__construct($tokenStorage, $refreshStorage, $config); + } + + /** + * Handle the creation of access token, also issue refresh token if supported / desirable. + * + * @param $client_id + * Client identifier related to the access token. + * @param $user_id + * User ID associated with the access token + * @param $scope + * (optional) Scopes to be stored in space-separated string. + * @param bool $includeRefreshToken + * If true, a new refresh_token will be added to the response + * + * @see http://tools.ietf.org/html/rfc6749#section-5 + * @ingroup oauth2_section_5 + */ + public function createAccessToken($client_id, $user_id, $scope = null, $includeRefreshToken = true) + { + // token to encrypt + $expires = time() + $this->config['access_lifetime']; + $id = $this->generateAccessToken(); + $jwtAccessToken = array( + 'id' => $id, // for BC (see #591) + 'jti' => $id, + 'iss' => $this->config['issuer'], + 'aud' => $client_id, + 'sub' => $user_id, + 'exp' => $expires, + 'iat' => time(), + 'token_type' => $this->config['token_type'], + 'scope' => $scope + ); + + /* + * Encode the token data into a single access_token string + */ + $access_token = $this->encodeToken($jwtAccessToken, $client_id); + + /* + * Save the token to a secondary storage. This is implemented on the + * OAuth2\Storage\JwtAccessToken side, and will not actually store anything, + * if no secondary storage has been supplied + */ + $token_to_store = $this->config['store_encrypted_token_string'] ? $access_token : $jwtAccessToken['id']; + $this->tokenStorage->setAccessToken($token_to_store, $client_id, $user_id, $this->config['access_lifetime'] ? time() + $this->config['access_lifetime'] : null, $scope); + + // token to return to the client + $token = array( + 'access_token' => $access_token, + 'expires_in' => $this->config['access_lifetime'], + 'token_type' => $this->config['token_type'], + 'scope' => $scope + ); + + /* + * Issue a refresh token also, if we support them + * + * Refresh Tokens are considered supported if an instance of OAuth2\Storage\RefreshTokenInterface + * is supplied in the constructor + */ + if ($includeRefreshToken && $this->refreshStorage) { + $refresh_token = $this->generateRefreshToken(); + $expires = 0; + if ($this->config['refresh_token_lifetime'] > 0) { + $expires = time() + $this->config['refresh_token_lifetime']; + } + $this->refreshStorage->setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope); + $token['refresh_token'] = $refresh_token; + } + + return $token; + } + + protected function encodeToken(array $token, $client_id = null) + { + $private_key = $this->publicKeyStorage->getPrivateKey($client_id); + $algorithm = $this->publicKeyStorage->getEncryptionAlgorithm($client_id); + + return $this->encryptionUtil->encode($token, $private_key, $algorithm); + } +} diff --git a/library/oauth2/src/OAuth2/ResponseType/ResponseTypeInterface.php b/library/oauth2/src/OAuth2/ResponseType/ResponseTypeInterface.php new file mode 100644 index 000000000..f8e26a5b0 --- /dev/null +++ b/library/oauth2/src/OAuth2/ResponseType/ResponseTypeInterface.php @@ -0,0 +1,8 @@ +<?php + +namespace OAuth2\ResponseType; + +interface ResponseTypeInterface +{ + public function getAuthorizeResponse($params, $user_id = null); +} diff --git a/library/oauth2/src/OAuth2/Scope.php b/library/oauth2/src/OAuth2/Scope.php new file mode 100644 index 000000000..c44350bfd --- /dev/null +++ b/library/oauth2/src/OAuth2/Scope.php @@ -0,0 +1,103 @@ +<?php + +namespace OAuth2; + +use OAuth2\Storage\Memory; +use OAuth2\Storage\ScopeInterface as ScopeStorageInterface; + +/** +* @see OAuth2\ScopeInterface +*/ +class Scope implements ScopeInterface +{ + protected $storage; + + /** + * @param mixed @storage + * Either an array of supported scopes, or an instance of OAuth2\Storage\ScopeInterface + */ + public function __construct($storage = null) + { + if (is_null($storage) || is_array($storage)) { + $storage = new Memory((array) $storage); + } + + if (!$storage instanceof ScopeStorageInterface) { + throw new \InvalidArgumentException("Argument 1 to OAuth2\Scope must be null, an array, or instance of OAuth2\Storage\ScopeInterface"); + } + + $this->storage = $storage; + } + + /** + * Check if everything in required scope is contained in available scope. + * + * @param $required_scope + * A space-separated string of scopes. + * + * @return + * TRUE if everything in required scope is contained in available scope, + * and FALSE if it isn't. + * + * @see http://tools.ietf.org/html/rfc6749#section-7 + * + * @ingroup oauth2_section_7 + */ + public function checkScope($required_scope, $available_scope) + { + $required_scope = explode(' ', trim($required_scope)); + $available_scope = explode(' ', trim($available_scope)); + + return (count(array_diff($required_scope, $available_scope)) == 0); + } + + /** + * Check if the provided scope exists in storage. + * + * @param $scope + * A space-separated string of scopes. + * + * @return + * TRUE if it exists, FALSE otherwise. + */ + public function scopeExists($scope) + { + // Check reserved scopes first. + $scope = explode(' ', trim($scope)); + $reservedScope = $this->getReservedScopes(); + $nonReservedScopes = array_diff($scope, $reservedScope); + if (count($nonReservedScopes) == 0) { + return true; + } else { + // Check the storage for non-reserved scopes. + $nonReservedScopes = implode(' ', $nonReservedScopes); + + return $this->storage->scopeExists($nonReservedScopes); + } + } + + public function getScopeFromRequest(RequestInterface $request) + { + // "scope" is valid if passed in either POST or QUERY + return $request->request('scope', $request->query('scope')); + } + + public function getDefaultScope($client_id = null) + { + return $this->storage->getDefaultScope($client_id); + } + + /** + * Get reserved scopes needed by the server. + * + * In case OpenID Connect is used, these scopes must include: + * 'openid', offline_access'. + * + * @return + * An array of reserved scopes. + */ + public function getReservedScopes() + { + return array('openid', 'offline_access'); + } +} diff --git a/library/oauth2/src/OAuth2/ScopeInterface.php b/library/oauth2/src/OAuth2/ScopeInterface.php new file mode 100644 index 000000000..5b60f9aee --- /dev/null +++ b/library/oauth2/src/OAuth2/ScopeInterface.php @@ -0,0 +1,40 @@ +<?php + +namespace OAuth2; + +use OAuth2\Storage\ScopeInterface as ScopeStorageInterface; + +/** + * Class to handle scope implementation logic + * + * @see OAuth2\Storage\ScopeInterface + */ +interface ScopeInterface extends ScopeStorageInterface +{ + /** + * Check if everything in required scope is contained in available scope. + * + * @param $required_scope + * A space-separated string of scopes. + * + * @return + * TRUE if everything in required scope is contained in available scope, + * and FALSE if it isn't. + * + * @see http://tools.ietf.org/html/rfc6749#section-7 + * + * @ingroup oauth2_section_7 + */ + public function checkScope($required_scope, $available_scope); + + /** + * Return scope info from request + * + * @param OAuth2\RequestInterface + * Request object to check + * + * @return + * string representation of requested scope + */ + public function getScopeFromRequest(RequestInterface $request); +} diff --git a/library/oauth2/src/OAuth2/Server.php b/library/oauth2/src/OAuth2/Server.php new file mode 100644 index 000000000..171a4f069 --- /dev/null +++ b/library/oauth2/src/OAuth2/Server.php @@ -0,0 +1,832 @@ +<?php + +namespace OAuth2; + +use OAuth2\Controller\ResourceControllerInterface; +use OAuth2\Controller\ResourceController; +use OAuth2\OpenID\Controller\UserInfoControllerInterface; +use OAuth2\OpenID\Controller\UserInfoController; +use OAuth2\OpenID\Controller\AuthorizeController as OpenIDAuthorizeController; +use OAuth2\OpenID\ResponseType\AuthorizationCode as OpenIDAuthorizationCodeResponseType; +use OAuth2\OpenID\Storage\AuthorizationCodeInterface as OpenIDAuthorizationCodeInterface; +use OAuth2\OpenID\GrantType\AuthorizationCode as OpenIDAuthorizationCodeGrantType; +use OAuth2\Controller\AuthorizeControllerInterface; +use OAuth2\Controller\AuthorizeController; +use OAuth2\Controller\TokenControllerInterface; +use OAuth2\Controller\TokenController; +use OAuth2\ClientAssertionType\ClientAssertionTypeInterface; +use OAuth2\ClientAssertionType\HttpBasic; +use OAuth2\ResponseType\ResponseTypeInterface; +use OAuth2\ResponseType\AuthorizationCode as AuthorizationCodeResponseType; +use OAuth2\ResponseType\AccessToken; +use OAuth2\ResponseType\JwtAccessToken; +use OAuth2\OpenID\ResponseType\CodeIdToken; +use OAuth2\OpenID\ResponseType\IdToken; +use OAuth2\OpenID\ResponseType\IdTokenToken; +use OAuth2\TokenType\TokenTypeInterface; +use OAuth2\TokenType\Bearer; +use OAuth2\GrantType\GrantTypeInterface; +use OAuth2\GrantType\UserCredentials; +use OAuth2\GrantType\ClientCredentials; +use OAuth2\GrantType\RefreshToken; +use OAuth2\GrantType\AuthorizationCode; +use OAuth2\Storage\JwtAccessToken as JwtAccessTokenStorage; +use OAuth2\Storage\JwtAccessTokenInterface; + +/** +* Server class for OAuth2 +* This class serves as a convience class which wraps the other Controller classes +* +* @see OAuth2\Controller\ResourceController +* @see OAuth2\Controller\AuthorizeController +* @see OAuth2\Controller\TokenController +*/ +class Server implements ResourceControllerInterface, + AuthorizeControllerInterface, + TokenControllerInterface, + UserInfoControllerInterface +{ + // misc properties + protected $response; + protected $config; + protected $storages; + + // servers + protected $authorizeController; + protected $tokenController; + protected $resourceController; + protected $userInfoController; + + // config classes + protected $grantTypes; + protected $responseTypes; + protected $tokenType; + protected $scopeUtil; + protected $clientAssertionType; + + protected $storageMap = array( + 'access_token' => 'OAuth2\Storage\AccessTokenInterface', + 'authorization_code' => 'OAuth2\Storage\AuthorizationCodeInterface', + 'client_credentials' => 'OAuth2\Storage\ClientCredentialsInterface', + 'client' => 'OAuth2\Storage\ClientInterface', + 'refresh_token' => 'OAuth2\Storage\RefreshTokenInterface', + 'user_credentials' => 'OAuth2\Storage\UserCredentialsInterface', + 'user_claims' => 'OAuth2\OpenID\Storage\UserClaimsInterface', + 'public_key' => 'OAuth2\Storage\PublicKeyInterface', + 'jwt_bearer' => 'OAuth2\Storage\JWTBearerInterface', + 'scope' => 'OAuth2\Storage\ScopeInterface', + ); + + protected $responseTypeMap = array( + 'token' => 'OAuth2\ResponseType\AccessTokenInterface', + 'code' => 'OAuth2\ResponseType\AuthorizationCodeInterface', + 'id_token' => 'OAuth2\OpenID\ResponseType\IdTokenInterface', + 'id_token token' => 'OAuth2\OpenID\ResponseType\IdTokenTokenInterface', + 'code id_token' => 'OAuth2\OpenID\ResponseType\CodeIdTokenInterface', + ); + + /** + * @param mixed $storage (array or OAuth2\Storage) - single object or array of objects implementing the + * required storage types (ClientCredentialsInterface and AccessTokenInterface as a minimum) + * @param array $config specify a different token lifetime, token header name, etc + * @param array $grantTypes An array of OAuth2\GrantType\GrantTypeInterface to use for granting access tokens + * @param array $responseTypes Response types to use. array keys should be "code" and and "token" for + * Access Token and Authorization Code response types + * @param OAuth2\TokenType\TokenTypeInterface $tokenType The token type object to use. Valid token types are "bearer" and "mac" + * @param OAuth2\ScopeInterface $scopeUtil The scope utility class to use to validate scope + * @param OAuth2\ClientAssertionType\ClientAssertionTypeInterface $clientAssertionType The method in which to verify the client identity. Default is HttpBasic + * + * @ingroup oauth2_section_7 + */ + public function __construct($storage = array(), array $config = array(), array $grantTypes = array(), array $responseTypes = array(), TokenTypeInterface $tokenType = null, ScopeInterface $scopeUtil = null, ClientAssertionTypeInterface $clientAssertionType = null) + { + $storage = is_array($storage) ? $storage : array($storage); + $this->storages = array(); + foreach ($storage as $key => $service) { + $this->addStorage($service, $key); + } + + // merge all config values. These get passed to our controller objects + $this->config = array_merge(array( + 'use_jwt_access_tokens' => false, + 'store_encrypted_token_string' => true, + 'use_openid_connect' => false, + 'id_lifetime' => 3600, + 'access_lifetime' => 3600, + 'www_realm' => 'Service', + 'token_param_name' => 'access_token', + 'token_bearer_header_name' => 'Bearer', + 'enforce_state' => true, + 'require_exact_redirect_uri' => true, + 'allow_implicit' => false, + 'allow_credentials_in_request_body' => true, + 'allow_public_clients' => true, + 'always_issue_new_refresh_token' => false, + 'unset_refresh_token_after_use' => true, + ), $config); + + foreach ($grantTypes as $key => $grantType) { + $this->addGrantType($grantType, $key); + } + + foreach ($responseTypes as $key => $responseType) { + $this->addResponseType($responseType, $key); + } + + $this->tokenType = $tokenType; + $this->scopeUtil = $scopeUtil; + $this->clientAssertionType = $clientAssertionType; + + if ($this->config['use_openid_connect']) { + $this->validateOpenIdConnect(); + } + } + + public function getAuthorizeController() + { + if (is_null($this->authorizeController)) { + $this->authorizeController = $this->createDefaultAuthorizeController(); + } + + return $this->authorizeController; + } + + public function getTokenController() + { + if (is_null($this->tokenController)) { + $this->tokenController = $this->createDefaultTokenController(); + } + + return $this->tokenController; + } + + public function getResourceController() + { + if (is_null($this->resourceController)) { + $this->resourceController = $this->createDefaultResourceController(); + } + + return $this->resourceController; + } + + public function getUserInfoController() + { + if (is_null($this->userInfoController)) { + $this->userInfoController = $this->createDefaultUserInfoController(); + } + + return $this->userInfoController; + } + + /** + * every getter deserves a setter + */ + public function setAuthorizeController(AuthorizeControllerInterface $authorizeController) + { + $this->authorizeController = $authorizeController; + } + + /** + * every getter deserves a setter + */ + public function setTokenController(TokenControllerInterface $tokenController) + { + $this->tokenController = $tokenController; + } + + /** + * every getter deserves a setter + */ + public function setResourceController(ResourceControllerInterface $resourceController) + { + $this->resourceController = $resourceController; + } + + /** + * every getter deserves a setter + */ + public function setUserInfoController(UserInfoControllerInterface $userInfoController) + { + $this->userInfoController = $userInfoController; + } + + /** + * Return claims about the authenticated end-user. + * This would be called from the "/UserInfo" endpoint as defined in the spec. + * + * @param $request - OAuth2\RequestInterface + * Request object to grant access token + * + * @param $response - OAuth2\ResponseInterface + * Response object containing error messages (failure) or user claims (success) + * + * @throws InvalidArgumentException + * @throws LogicException + * + * @see http://openid.net/specs/openid-connect-core-1_0.html#UserInfo + */ + public function handleUserInfoRequest(RequestInterface $request, ResponseInterface $response = null) + { + $this->response = is_null($response) ? new Response() : $response; + $this->getUserInfoController()->handleUserInfoRequest($request, $this->response); + + return $this->response; + } + + /** + * Grant or deny a requested access token. + * This would be called from the "/token" endpoint as defined in the spec. + * Obviously, you can call your endpoint whatever you want. + * + * @param $request - OAuth2\RequestInterface + * Request object to grant access token + * + * @param $response - OAuth2\ResponseInterface + * Response object containing error messages (failure) or access token (success) + * + * @throws InvalidArgumentException + * @throws LogicException + * + * @see http://tools.ietf.org/html/rfc6749#section-4 + * @see http://tools.ietf.org/html/rfc6749#section-10.6 + * @see http://tools.ietf.org/html/rfc6749#section-4.1.3 + * + * @ingroup oauth2_section_4 + */ + public function handleTokenRequest(RequestInterface $request, ResponseInterface $response = null) + { + $this->response = is_null($response) ? new Response() : $response; + $this->getTokenController()->handleTokenRequest($request, $this->response); + + return $this->response; + } + + public function grantAccessToken(RequestInterface $request, ResponseInterface $response = null) + { + $this->response = is_null($response) ? new Response() : $response; + $value = $this->getTokenController()->grantAccessToken($request, $this->response); + + return $value; + } + + /** + * Handle a revoke token request + * This would be called from the "/revoke" endpoint as defined in the draft Token Revocation spec + * + * @see https://tools.ietf.org/html/rfc7009#section-2 + * + * @param RequestInterface $request + * @param ResponseInterface $response + * @return Response|ResponseInterface + */ + public function handleRevokeRequest(RequestInterface $request, ResponseInterface $response = null) + { + $this->response = is_null($response) ? new Response() : $response; + $this->getTokenController()->handleRevokeRequest($request, $this->response); + + return $this->response; + } + + /** + * Redirect the user appropriately after approval. + * + * After the user has approved or denied the resource request the + * authorization server should call this function to redirect the user + * appropriately. + * + * @param $request + * The request should have the follow parameters set in the querystring: + * - response_type: The requested response: an access token, an + * authorization code, or both. + * - client_id: The client identifier as described in Section 2. + * - redirect_uri: An absolute URI to which the authorization server + * will redirect the user-agent to when the end-user authorization + * step is completed. + * - scope: (optional) The scope of the resource request expressed as a + * list of space-delimited strings. + * - state: (optional) An opaque value used by the client to maintain + * state between the request and callback. + * @param $is_authorized + * TRUE or FALSE depending on whether the user authorized the access. + * @param $user_id + * Identifier of user who authorized the client + * + * @see http://tools.ietf.org/html/rfc6749#section-4 + * + * @ingroup oauth2_section_4 + */ + public function handleAuthorizeRequest(RequestInterface $request, ResponseInterface $response, $is_authorized, $user_id = null) + { + $this->response = $response; + $this->getAuthorizeController()->handleAuthorizeRequest($request, $this->response, $is_authorized, $user_id); + + return $this->response; + } + + /** + * Pull the authorization request data out of the HTTP request. + * - The redirect_uri is OPTIONAL as per draft 20. But your implementation can enforce it + * by setting $config['enforce_redirect'] to true. + * - The state is OPTIONAL but recommended to enforce CSRF. Draft 21 states, however, that + * CSRF protection is MANDATORY. You can enforce this by setting the $config['enforce_state'] to true. + * + * The draft specifies that the parameters should be retrieved from GET, override the Response + * object to change this + * + * @return + * The authorization parameters so the authorization server can prompt + * the user for approval if valid. + * + * @see http://tools.ietf.org/html/rfc6749#section-4.1.1 + * @see http://tools.ietf.org/html/rfc6749#section-10.12 + * + * @ingroup oauth2_section_3 + */ + public function validateAuthorizeRequest(RequestInterface $request, ResponseInterface $response = null) + { + $this->response = is_null($response) ? new Response() : $response; + $value = $this->getAuthorizeController()->validateAuthorizeRequest($request, $this->response); + + return $value; + } + + public function verifyResourceRequest(RequestInterface $request, ResponseInterface $response = null, $scope = null) + { + $this->response = is_null($response) ? new Response() : $response; + $value = $this->getResourceController()->verifyResourceRequest($request, $this->response, $scope); + + return $value; + } + + public function getAccessTokenData(RequestInterface $request, ResponseInterface $response = null) + { + $this->response = is_null($response) ? new Response() : $response; + $value = $this->getResourceController()->getAccessTokenData($request, $this->response); + + return $value; + } + + public function addGrantType(GrantTypeInterface $grantType, $identifier = null) + { + if (!is_string($identifier)) { + $identifier = $grantType->getQuerystringIdentifier(); + } + + $this->grantTypes[$identifier] = $grantType; + + // persist added grant type down to TokenController + if (!is_null($this->tokenController)) { + $this->getTokenController()->addGrantType($grantType, $identifier); + } + } + + /** + * Set a storage object for the server + * + * @param $storage + * An object implementing one of the Storage interfaces + * @param $key + * If null, the storage is set to the key of each storage interface it implements + * + * @see storageMap + */ + public function addStorage($storage, $key = null) + { + // if explicitly set to a valid key, do not "magically" set below + if (isset($this->storageMap[$key])) { + if (!is_null($storage) && !$storage instanceof $this->storageMap[$key]) { + throw new \InvalidArgumentException(sprintf('storage of type "%s" must implement interface "%s"', $key, $this->storageMap[$key])); + } + $this->storages[$key] = $storage; + + // special logic to handle "client" and "client_credentials" strangeness + if ($key === 'client' && !isset($this->storages['client_credentials'])) { + if ($storage instanceof \OAuth2\Storage\ClientCredentialsInterface) { + $this->storages['client_credentials'] = $storage; + } + } elseif ($key === 'client_credentials' && !isset($this->storages['client'])) { + if ($storage instanceof \OAuth2\Storage\ClientInterface) { + $this->storages['client'] = $storage; + } + } + } elseif (!is_null($key) && !is_numeric($key)) { + throw new \InvalidArgumentException(sprintf('unknown storage key "%s", must be one of [%s]', $key, implode(', ', array_keys($this->storageMap)))); + } else { + $set = false; + foreach ($this->storageMap as $type => $interface) { + if ($storage instanceof $interface) { + $this->storages[$type] = $storage; + $set = true; + } + } + + if (!$set) { + throw new \InvalidArgumentException(sprintf('storage of class "%s" must implement one of [%s]', get_class($storage), implode(', ', $this->storageMap))); + } + } + } + + public function addResponseType(ResponseTypeInterface $responseType, $key = null) + { + $key = $this->normalizeResponseType($key); + + if (isset($this->responseTypeMap[$key])) { + if (!$responseType instanceof $this->responseTypeMap[$key]) { + throw new \InvalidArgumentException(sprintf('responseType of type "%s" must implement interface "%s"', $key, $this->responseTypeMap[$key])); + } + $this->responseTypes[$key] = $responseType; + } elseif (!is_null($key) && !is_numeric($key)) { + throw new \InvalidArgumentException(sprintf('unknown responseType key "%s", must be one of [%s]', $key, implode(', ', array_keys($this->responseTypeMap)))); + } else { + $set = false; + foreach ($this->responseTypeMap as $type => $interface) { + if ($responseType instanceof $interface) { + $this->responseTypes[$type] = $responseType; + $set = true; + } + } + + if (!$set) { + throw new \InvalidArgumentException(sprintf('Unknown response type %s. Please implement one of [%s]', get_class($responseType), implode(', ', $this->responseTypeMap))); + } + } + } + + public function getScopeUtil() + { + if (!$this->scopeUtil) { + $storage = isset($this->storages['scope']) ? $this->storages['scope'] : null; + $this->scopeUtil = new Scope($storage); + } + + return $this->scopeUtil; + } + + /** + * every getter deserves a setter + */ + public function setScopeUtil($scopeUtil) + { + $this->scopeUtil = $scopeUtil; + } + + protected function createDefaultAuthorizeController() + { + if (!isset($this->storages['client'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\Storage\ClientInterface to use the authorize server"); + } + if (0 == count($this->responseTypes)) { + $this->responseTypes = $this->getDefaultResponseTypes(); + } + if ($this->config['use_openid_connect'] && !isset($this->responseTypes['id_token'])) { + $this->responseTypes['id_token'] = $this->createDefaultIdTokenResponseType(); + if ($this->config['allow_implicit']) { + $this->responseTypes['id_token token'] = $this->createDefaultIdTokenTokenResponseType(); + } + } + + $config = array_intersect_key($this->config, array_flip(explode(' ', 'allow_implicit enforce_state require_exact_redirect_uri'))); + + if ($this->config['use_openid_connect']) { + return new OpenIDAuthorizeController($this->storages['client'], $this->responseTypes, $config, $this->getScopeUtil()); + } + + return new AuthorizeController($this->storages['client'], $this->responseTypes, $config, $this->getScopeUtil()); + } + + protected function createDefaultTokenController() + { + if (0 == count($this->grantTypes)) { + $this->grantTypes = $this->getDefaultGrantTypes(); + } + + if (is_null($this->clientAssertionType)) { + // see if HttpBasic assertion type is requred. If so, then create it from storage classes. + foreach ($this->grantTypes as $grantType) { + if (!$grantType instanceof ClientAssertionTypeInterface) { + if (!isset($this->storages['client_credentials'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\Storage\ClientCredentialsInterface to use the token server"); + } + $config = array_intersect_key($this->config, array_flip(explode(' ', 'allow_credentials_in_request_body allow_public_clients'))); + $this->clientAssertionType = new HttpBasic($this->storages['client_credentials'], $config); + break; + } + } + } + + if (!isset($this->storages['client'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\Storage\ClientInterface to use the token server"); + } + + $accessTokenResponseType = $this->getAccessTokenResponseType(); + + return new TokenController($accessTokenResponseType, $this->storages['client'], $this->grantTypes, $this->clientAssertionType, $this->getScopeUtil()); + } + + protected function createDefaultResourceController() + { + if ($this->config['use_jwt_access_tokens']) { + // overwrites access token storage with crypto token storage if "use_jwt_access_tokens" is set + if (!isset($this->storages['access_token']) || !$this->storages['access_token'] instanceof JwtAccessTokenInterface) { + $this->storages['access_token'] = $this->createDefaultJwtAccessTokenStorage(); + } + } elseif (!isset($this->storages['access_token'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\Storage\AccessTokenInterface or use JwtAccessTokens to use the resource server"); + } + + if (!$this->tokenType) { + $this->tokenType = $this->getDefaultTokenType(); + } + + $config = array_intersect_key($this->config, array('www_realm' => '')); + + return new ResourceController($this->tokenType, $this->storages['access_token'], $config, $this->getScopeUtil()); + } + + protected function createDefaultUserInfoController() + { + if ($this->config['use_jwt_access_tokens']) { + // overwrites access token storage with crypto token storage if "use_jwt_access_tokens" is set + if (!isset($this->storages['access_token']) || !$this->storages['access_token'] instanceof JwtAccessTokenInterface) { + $this->storages['access_token'] = $this->createDefaultJwtAccessTokenStorage(); + } + } elseif (!isset($this->storages['access_token'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\Storage\AccessTokenInterface or use JwtAccessTokens to use the UserInfo server"); + } + + if (!isset($this->storages['user_claims'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\OpenID\Storage\UserClaimsInterface to use the UserInfo server"); + } + + if (!$this->tokenType) { + $this->tokenType = $this->getDefaultTokenType(); + } + + $config = array_intersect_key($this->config, array('www_realm' => '')); + + return new UserInfoController($this->tokenType, $this->storages['access_token'], $this->storages['user_claims'], $config, $this->getScopeUtil()); + } + + protected function getDefaultTokenType() + { + $config = array_intersect_key($this->config, array_flip(explode(' ', 'token_param_name token_bearer_header_name'))); + + return new Bearer($config); + } + + protected function getDefaultResponseTypes() + { + $responseTypes = array(); + + if ($this->config['allow_implicit']) { + $responseTypes['token'] = $this->getAccessTokenResponseType(); + } + + if ($this->config['use_openid_connect']) { + $responseTypes['id_token'] = $this->getIdTokenResponseType(); + if ($this->config['allow_implicit']) { + $responseTypes['id_token token'] = $this->getIdTokenTokenResponseType(); + } + } + + if (isset($this->storages['authorization_code'])) { + $config = array_intersect_key($this->config, array_flip(explode(' ', 'enforce_redirect auth_code_lifetime'))); + if ($this->config['use_openid_connect']) { + if (!$this->storages['authorization_code'] instanceof OpenIDAuthorizationCodeInterface) { + throw new \LogicException("Your authorization_code storage must implement OAuth2\OpenID\Storage\AuthorizationCodeInterface to work when 'use_openid_connect' is true"); + } + $responseTypes['code'] = new OpenIDAuthorizationCodeResponseType($this->storages['authorization_code'], $config); + $responseTypes['code id_token'] = new CodeIdToken($responseTypes['code'], $responseTypes['id_token']); + } else { + $responseTypes['code'] = new AuthorizationCodeResponseType($this->storages['authorization_code'], $config); + } + } + + if (count($responseTypes) == 0) { + throw new \LogicException("You must supply an array of response_types in the constructor or implement a OAuth2\Storage\AuthorizationCodeInterface storage object or set 'allow_implicit' to true and implement a OAuth2\Storage\AccessTokenInterface storage object"); + } + + return $responseTypes; + } + + protected function getDefaultGrantTypes() + { + $grantTypes = array(); + + if (isset($this->storages['user_credentials'])) { + $grantTypes['password'] = new UserCredentials($this->storages['user_credentials']); + } + + if (isset($this->storages['client_credentials'])) { + $config = array_intersect_key($this->config, array('allow_credentials_in_request_body' => '')); + $grantTypes['client_credentials'] = new ClientCredentials($this->storages['client_credentials'], $config); + } + + if (isset($this->storages['refresh_token'])) { + $config = array_intersect_key($this->config, array_flip(explode(' ', 'always_issue_new_refresh_token unset_refresh_token_after_use'))); + $grantTypes['refresh_token'] = new RefreshToken($this->storages['refresh_token'], $config); + } + + if (isset($this->storages['authorization_code'])) { + if ($this->config['use_openid_connect']) { + if (!$this->storages['authorization_code'] instanceof OpenIDAuthorizationCodeInterface) { + throw new \LogicException("Your authorization_code storage must implement OAuth2\OpenID\Storage\AuthorizationCodeInterface to work when 'use_openid_connect' is true"); + } + $grantTypes['authorization_code'] = new OpenIDAuthorizationCodeGrantType($this->storages['authorization_code']); + } else { + $grantTypes['authorization_code'] = new AuthorizationCode($this->storages['authorization_code']); + } + } + + if (count($grantTypes) == 0) { + throw new \LogicException("Unable to build default grant types - You must supply an array of grant_types in the constructor"); + } + + return $grantTypes; + } + + protected function getAccessTokenResponseType() + { + if (isset($this->responseTypes['token'])) { + return $this->responseTypes['token']; + } + + if ($this->config['use_jwt_access_tokens']) { + return $this->createDefaultJwtAccessTokenResponseType(); + } + + return $this->createDefaultAccessTokenResponseType(); + } + + protected function getIdTokenResponseType() + { + if (isset($this->responseTypes['id_token'])) { + return $this->responseTypes['id_token']; + } + + return $this->createDefaultIdTokenResponseType(); + } + + protected function getIdTokenTokenResponseType() + { + if (isset($this->responseTypes['id_token token'])) { + return $this->responseTypes['id_token token']; + } + + return $this->createDefaultIdTokenTokenResponseType(); + } + + /** + * For Resource Controller + */ + protected function createDefaultJwtAccessTokenStorage() + { + if (!isset($this->storages['public_key'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\Storage\PublicKeyInterface to use crypto tokens"); + } + $tokenStorage = null; + if (!empty($this->config['store_encrypted_token_string']) && isset($this->storages['access_token'])) { + $tokenStorage = $this->storages['access_token']; + } + // wrap the access token storage as required. + return new JwtAccessTokenStorage($this->storages['public_key'], $tokenStorage); + } + + /** + * For Authorize and Token Controllers + */ + protected function createDefaultJwtAccessTokenResponseType() + { + if (!isset($this->storages['public_key'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\Storage\PublicKeyInterface to use crypto tokens"); + } + + $tokenStorage = null; + if (isset($this->storages['access_token'])) { + $tokenStorage = $this->storages['access_token']; + } + + $refreshStorage = null; + if (isset($this->storages['refresh_token'])) { + $refreshStorage = $this->storages['refresh_token']; + } + + $config = array_intersect_key($this->config, array_flip(explode(' ', 'store_encrypted_token_string issuer access_lifetime refresh_token_lifetime'))); + + return new JwtAccessToken($this->storages['public_key'], $tokenStorage, $refreshStorage, $config); + } + + protected function createDefaultAccessTokenResponseType() + { + if (!isset($this->storages['access_token'])) { + throw new \LogicException("You must supply a response type implementing OAuth2\ResponseType\AccessTokenInterface, or a storage object implementing OAuth2\Storage\AccessTokenInterface to use the token server"); + } + + $refreshStorage = null; + if (isset($this->storages['refresh_token'])) { + $refreshStorage = $this->storages['refresh_token']; + } + + $config = array_intersect_key($this->config, array_flip(explode(' ', 'access_lifetime refresh_token_lifetime'))); + $config['token_type'] = $this->tokenType ? $this->tokenType->getTokenType() : $this->getDefaultTokenType()->getTokenType(); + + return new AccessToken($this->storages['access_token'], $refreshStorage, $config); + } + + protected function createDefaultIdTokenResponseType() + { + if (!isset($this->storages['user_claims'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\OpenID\Storage\UserClaimsInterface to use openid connect"); + } + if (!isset($this->storages['public_key'])) { + throw new \LogicException("You must supply a storage object implementing OAuth2\Storage\PublicKeyInterface to use openid connect"); + } + + $config = array_intersect_key($this->config, array_flip(explode(' ', 'issuer id_lifetime'))); + + return new IdToken($this->storages['user_claims'], $this->storages['public_key'], $config); + } + + protected function createDefaultIdTokenTokenResponseType() + { + return new IdTokenToken($this->getAccessTokenResponseType(), $this->getIdTokenResponseType()); + } + + protected function validateOpenIdConnect() + { + $authCodeGrant = $this->getGrantType('authorization_code'); + if (!empty($authCodeGrant) && !$authCodeGrant instanceof OpenIDAuthorizationCodeGrantType) { + throw new \InvalidArgumentException('You have enabled OpenID Connect, but supplied a grant type that does not support it.'); + } + } + + protected function normalizeResponseType($name) + { + // for multiple-valued response types - make them alphabetical + if (!empty($name) && false !== strpos($name, ' ')) { + $types = explode(' ', $name); + sort($types); + $name = implode(' ', $types); + } + + return $name; + } + + public function getResponse() + { + return $this->response; + } + + public function getStorages() + { + return $this->storages; + } + + public function getStorage($name) + { + return isset($this->storages[$name]) ? $this->storages[$name] : null; + } + + public function getGrantTypes() + { + return $this->grantTypes; + } + + public function getGrantType($name) + { + return isset($this->grantTypes[$name]) ? $this->grantTypes[$name] : null; + } + + public function getResponseTypes() + { + return $this->responseTypes; + } + + public function getResponseType($name) + { + // for multiple-valued response types - make them alphabetical + $name = $this->normalizeResponseType($name); + + return isset($this->responseTypes[$name]) ? $this->responseTypes[$name] : null; + } + + public function getTokenType() + { + return $this->tokenType; + } + + public function getClientAssertionType() + { + return $this->clientAssertionType; + } + + public function setConfig($name, $value) + { + $this->config[$name] = $value; + } + + public function getConfig($name, $default = null) + { + return isset($this->config[$name]) ? $this->config[$name] : $default; + } +} diff --git a/library/oauth2/src/OAuth2/Storage/AccessTokenInterface.php b/library/oauth2/src/OAuth2/Storage/AccessTokenInterface.php new file mode 100644 index 000000000..1819158af --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/AccessTokenInterface.php @@ -0,0 +1,64 @@ +<?php + +namespace OAuth2\Storage; + +/** + * Implement this interface to specify where the OAuth2 Server + * should get/save access tokens + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface AccessTokenInterface +{ + /** + * Look up the supplied oauth_token from storage. + * + * We need to retrieve access token data as we create and verify tokens. + * + * @param $oauth_token + * oauth_token to be check with. + * + * @return + * An associative array as below, and return NULL if the supplied oauth_token + * is invalid: + * - expires: Stored expiration in unix timestamp. + * - client_id: (optional) Stored client identifier. + * - user_id: (optional) Stored user identifier. + * - scope: (optional) Stored scope values in space-separated string. + * - id_token: (optional) Stored id_token (if "use_openid_connect" is true). + * + * @ingroup oauth2_section_7 + */ + public function getAccessToken($oauth_token); + + /** + * Store the supplied access token values to storage. + * + * We need to store access token data as we create and verify tokens. + * + * @param $oauth_token oauth_token to be stored. + * @param $client_id client identifier to be stored. + * @param $user_id user identifier to be stored. + * @param int $expires expiration to be stored as a Unix timestamp. + * @param string $scope OPTIONAL Scopes to be stored in space-separated string. + * + * @ingroup oauth2_section_4 + */ + public function setAccessToken($oauth_token, $client_id, $user_id, $expires, $scope = null); + + /** + * Expire an access token. + * + * This is not explicitly required in the spec, but if defined in a draft RFC for token + * revoking (RFC 7009) https://tools.ietf.org/html/rfc7009 + * + * @param $access_token + * Access token to be expired. + * + * @return BOOL true if an access token was unset, false if not + * @ingroup oauth2_section_6 + * + * @todo v2.0 include this method in interface. Omitted to maintain BC in v1.x + */ + //public function unsetAccessToken($access_token); +} diff --git a/library/oauth2/src/OAuth2/Storage/AuthorizationCodeInterface.php b/library/oauth2/src/OAuth2/Storage/AuthorizationCodeInterface.php new file mode 100644 index 000000000..3beb0e437 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/AuthorizationCodeInterface.php @@ -0,0 +1,86 @@ +<?php + +namespace OAuth2\Storage; + +/** + * Implement this interface to specify where the OAuth2 Server + * should get/save authorization codes for the "Authorization Code" + * grant type + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface AuthorizationCodeInterface +{ + /** + * The Authorization Code grant type supports a response type of "code". + * + * @var string + * @see http://tools.ietf.org/html/rfc6749#section-1.4.1 + * @see http://tools.ietf.org/html/rfc6749#section-4.2 + */ + const RESPONSE_TYPE_CODE = "code"; + + /** + * Fetch authorization code data (probably the most common grant type). + * + * Retrieve the stored data for the given authorization code. + * + * Required for OAuth2::GRANT_TYPE_AUTH_CODE. + * + * @param $code + * Authorization code to be check with. + * + * @return + * An associative array as below, and NULL if the code is invalid + * @code + * return array( + * "client_id" => CLIENT_ID, // REQUIRED Stored client identifier + * "user_id" => USER_ID, // REQUIRED Stored user identifier + * "expires" => EXPIRES, // REQUIRED Stored expiration in unix timestamp + * "redirect_uri" => REDIRECT_URI, // REQUIRED Stored redirect URI + * "scope" => SCOPE, // OPTIONAL Stored scope values in space-separated string + * ); + * @endcode + * + * @see http://tools.ietf.org/html/rfc6749#section-4.1 + * + * @ingroup oauth2_section_4 + */ + public function getAuthorizationCode($code); + + /** + * Take the provided authorization code values and store them somewhere. + * + * This function should be the storage counterpart to getAuthCode(). + * + * If storage fails for some reason, we're not currently checking for + * any sort of success/failure, so you should bail out of the script + * and provide a descriptive fail message. + * + * Required for OAuth2::GRANT_TYPE_AUTH_CODE. + * + * @param string $code Authorization code to be stored. + * @param mixed $client_id Client identifier to be stored. + * @param mixed $user_id User identifier to be stored. + * @param string $redirect_uri Redirect URI(s) to be stored in a space-separated string. + * @param int $expires Expiration to be stored as a Unix timestamp. + * @param string $scope OPTIONAL Scopes to be stored in space-separated string. + * + * @ingroup oauth2_section_4 + */ + public function setAuthorizationCode($code, $client_id, $user_id, $redirect_uri, $expires, $scope = null); + + /** + * once an Authorization Code is used, it must be exipired + * + * @see http://tools.ietf.org/html/rfc6749#section-4.1.2 + * + * The client MUST NOT use the authorization code + * more than once. If an authorization code is used more than + * once, the authorization server MUST deny the request and SHOULD + * revoke (when possible) all tokens previously issued based on + * that authorization code + * + */ + public function expireAuthorizationCode($code); +} diff --git a/library/oauth2/src/OAuth2/Storage/Cassandra.php b/library/oauth2/src/OAuth2/Storage/Cassandra.php new file mode 100644 index 000000000..602e8a058 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/Cassandra.php @@ -0,0 +1,480 @@ +<?php + +namespace OAuth2\Storage; + +use phpcassa\ColumnFamily; +use phpcassa\ColumnSlice; +use phpcassa\Connection\ConnectionPool; +use OAuth2\OpenID\Storage\UserClaimsInterface; +use OAuth2\OpenID\Storage\AuthorizationCodeInterface as OpenIDAuthorizationCodeInterface; + +/** + * Cassandra storage for all storage types + * + * To use, install "thobbs/phpcassa" via composer + * <code> + * composer require thobbs/phpcassa:dev-master + * </code> + * + * Once this is done, instantiate the + * <code> + * $cassandra = new \phpcassa\Connection\ConnectionPool('oauth2_server', array('127.0.0.1:9160')); + * </code> + * + * Then, register the storage client: + * <code> + * $storage = new OAuth2\Storage\Cassandra($cassandra); + * $storage->setClientDetails($client_id, $client_secret, $redirect_uri); + * </code> + * + * @see test/lib/OAuth2/Storage/Bootstrap::getCassandraStorage + */ +class Cassandra implements AuthorizationCodeInterface, + AccessTokenInterface, + ClientCredentialsInterface, + UserCredentialsInterface, + RefreshTokenInterface, + JwtBearerInterface, + ScopeInterface, + PublicKeyInterface, + UserClaimsInterface, + OpenIDAuthorizationCodeInterface +{ + + private $cache; + + /* The cassandra client */ + protected $cassandra; + + /* Configuration array */ + protected $config; + + /** + * Cassandra Storage! uses phpCassa + * + * @param \phpcassa\ConnectionPool $cassandra + * @param array $config + */ + public function __construct($connection = array(), array $config = array()) + { + if ($connection instanceof ConnectionPool) { + $this->cassandra = $connection; + } else { + if (!is_array($connection)) { + throw new \InvalidArgumentException('First argument to OAuth2\Storage\Cassandra must be an instance of phpcassa\Connection\ConnectionPool or a configuration array'); + } + $connection = array_merge(array( + 'keyspace' => 'oauth2', + 'servers' => null, + ), $connection); + + $this->cassandra = new ConnectionPool($connection['keyspace'], $connection['servers']); + } + + $this->config = array_merge(array( + // cassandra config + 'column_family' => 'auth', + + // key names + 'client_key' => 'oauth_clients:', + 'access_token_key' => 'oauth_access_tokens:', + 'refresh_token_key' => 'oauth_refresh_tokens:', + 'code_key' => 'oauth_authorization_codes:', + 'user_key' => 'oauth_users:', + 'jwt_key' => 'oauth_jwt:', + 'scope_key' => 'oauth_scopes:', + 'public_key_key' => 'oauth_public_keys:', + ), $config); + } + + protected function getValue($key) + { + if (isset($this->cache[$key])) { + return $this->cache[$key]; + } + $cf = new ColumnFamily($this->cassandra, $this->config['column_family']); + + try { + $value = $cf->get($key, new ColumnSlice("", "")); + $value = array_shift($value); + } catch (\cassandra\NotFoundException $e) { + return false; + } + + return json_decode($value, true); + } + + protected function setValue($key, $value, $expire = 0) + { + $this->cache[$key] = $value; + + $cf = new ColumnFamily($this->cassandra, $this->config['column_family']); + + $str = json_encode($value); + if ($expire > 0) { + try { + $seconds = $expire - time(); + // __data key set as C* requires a field, note: max TTL can only be 630720000 seconds + $cf->insert($key, array('__data' => $str), null, $seconds); + } catch (\Exception $e) { + return false; + } + } else { + try { + // __data key set as C* requires a field + $cf->insert($key, array('__data' => $str)); + } catch (\Exception $e) { + return false; + } + } + + return true; + } + + protected function expireValue($key) + { + unset($this->cache[$key]); + + $cf = new ColumnFamily($this->cassandra, $this->config['column_family']); + + if ($cf->get_count($key) > 0) { + try { + // __data key set as C* requires a field + $cf->remove($key, array('__data')); + } catch (\Exception $e) { + return false; + } + + return true; + } + + return false; + } + + /* AuthorizationCodeInterface */ + public function getAuthorizationCode($code) + { + return $this->getValue($this->config['code_key'] . $code); + } + + public function setAuthorizationCode($authorization_code, $client_id, $user_id, $redirect_uri, $expires, $scope = null, $id_token = null) + { + return $this->setValue( + $this->config['code_key'] . $authorization_code, + compact('authorization_code', 'client_id', 'user_id', 'redirect_uri', 'expires', 'scope', 'id_token'), + $expires + ); + } + + public function expireAuthorizationCode($code) + { + $key = $this->config['code_key'] . $code; + unset($this->cache[$key]); + + return $this->expireValue($key); + } + + /* UserCredentialsInterface */ + public function checkUserCredentials($username, $password) + { + if ($user = $this->getUser($username)) { + return $this->checkPassword($user, $password); + } + + return false; + } + + // plaintext passwords are bad! Override this for your application + protected function checkPassword($user, $password) + { + return $user['password'] == $this->hashPassword($password); + } + + // use a secure hashing algorithm when storing passwords. Override this for your application + protected function hashPassword($password) + { + return sha1($password); + } + + public function getUserDetails($username) + { + return $this->getUser($username); + } + + public function getUser($username) + { + if (!$userInfo = $this->getValue($this->config['user_key'] . $username)) { + return false; + } + + // the default behavior is to use "username" as the user_id + return array_merge(array( + 'user_id' => $username, + ), $userInfo); + } + + public function setUser($username, $password, $first_name = null, $last_name = null) + { + $password = $this->hashPassword($password); + + return $this->setValue( + $this->config['user_key'] . $username, + compact('username', 'password', 'first_name', 'last_name') + ); + } + + /* ClientCredentialsInterface */ + public function checkClientCredentials($client_id, $client_secret = null) + { + if (!$client = $this->getClientDetails($client_id)) { + return false; + } + + return isset($client['client_secret']) + && $client['client_secret'] == $client_secret; + } + + public function isPublicClient($client_id) + { + if (!$client = $this->getClientDetails($client_id)) { + return false; + } + + return empty($client['client_secret']);; + } + + /* ClientInterface */ + public function getClientDetails($client_id) + { + return $this->getValue($this->config['client_key'] . $client_id); + } + + public function setClientDetails($client_id, $client_secret = null, $redirect_uri = null, $grant_types = null, $scope = null, $user_id = null) + { + return $this->setValue( + $this->config['client_key'] . $client_id, + compact('client_id', 'client_secret', 'redirect_uri', 'grant_types', 'scope', 'user_id') + ); + } + + public function checkRestrictedGrantType($client_id, $grant_type) + { + $details = $this->getClientDetails($client_id); + if (isset($details['grant_types'])) { + $grant_types = explode(' ', $details['grant_types']); + + return in_array($grant_type, (array) $grant_types); + } + + // if grant_types are not defined, then none are restricted + return true; + } + + /* RefreshTokenInterface */ + public function getRefreshToken($refresh_token) + { + return $this->getValue($this->config['refresh_token_key'] . $refresh_token); + } + + public function setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope = null) + { + return $this->setValue( + $this->config['refresh_token_key'] . $refresh_token, + compact('refresh_token', 'client_id', 'user_id', 'expires', 'scope'), + $expires + ); + } + + public function unsetRefreshToken($refresh_token) + { + return $this->expireValue($this->config['refresh_token_key'] . $refresh_token); + } + + /* AccessTokenInterface */ + public function getAccessToken($access_token) + { + return $this->getValue($this->config['access_token_key'].$access_token); + } + + public function setAccessToken($access_token, $client_id, $user_id, $expires, $scope = null) + { + return $this->setValue( + $this->config['access_token_key'].$access_token, + compact('access_token', 'client_id', 'user_id', 'expires', 'scope'), + $expires + ); + } + + public function unsetAccessToken($access_token) + { + return $this->expireValue($this->config['access_token_key'] . $access_token); + } + + /* ScopeInterface */ + public function scopeExists($scope) + { + $scope = explode(' ', $scope); + + $result = $this->getValue($this->config['scope_key'].'supported:global'); + + $supportedScope = explode(' ', (string) $result); + + return (count(array_diff($scope, $supportedScope)) == 0); + } + + public function getDefaultScope($client_id = null) + { + if (is_null($client_id) || !$result = $this->getValue($this->config['scope_key'].'default:'.$client_id)) { + $result = $this->getValue($this->config['scope_key'].'default:global'); + } + + return $result; + } + + public function setScope($scope, $client_id = null, $type = 'supported') + { + if (!in_array($type, array('default', 'supported'))) { + throw new \InvalidArgumentException('"$type" must be one of "default", "supported"'); + } + + if (is_null($client_id)) { + $key = $this->config['scope_key'].$type.':global'; + } else { + $key = $this->config['scope_key'].$type.':'.$client_id; + } + + return $this->setValue($key, $scope); + } + + /*JWTBearerInterface */ + public function getClientKey($client_id, $subject) + { + if (!$jwt = $this->getValue($this->config['jwt_key'] . $client_id)) { + return false; + } + + if (isset($jwt['subject']) && $jwt['subject'] == $subject ) { + return $jwt['key']; + } + + return null; + } + + public function setClientKey($client_id, $key, $subject = null) + { + return $this->setValue($this->config['jwt_key'] . $client_id, array( + 'key' => $key, + 'subject' => $subject + )); + } + + /*ScopeInterface */ + public function getClientScope($client_id) + { + if (!$clientDetails = $this->getClientDetails($client_id)) { + return false; + } + + if (isset($clientDetails['scope'])) { + return $clientDetails['scope']; + } + + return null; + } + + public function getJti($client_id, $subject, $audience, $expiration, $jti) + { + //TODO: Needs cassandra implementation. + throw new \Exception('getJti() for the Cassandra driver is currently unimplemented.'); + } + + public function setJti($client_id, $subject, $audience, $expiration, $jti) + { + //TODO: Needs cassandra implementation. + throw new \Exception('setJti() for the Cassandra driver is currently unimplemented.'); + } + + /* PublicKeyInterface */ + public function getPublicKey($client_id = '') + { + $public_key = $this->getValue($this->config['public_key_key'] . $client_id); + if (is_array($public_key)) { + return $public_key['public_key']; + } + $public_key = $this->getValue($this->config['public_key_key']); + if (is_array($public_key)) { + return $public_key['public_key']; + } + } + + public function getPrivateKey($client_id = '') + { + $public_key = $this->getValue($this->config['public_key_key'] . $client_id); + if (is_array($public_key)) { + return $public_key['private_key']; + } + $public_key = $this->getValue($this->config['public_key_key']); + if (is_array($public_key)) { + return $public_key['private_key']; + } + } + + public function getEncryptionAlgorithm($client_id = null) + { + $public_key = $this->getValue($this->config['public_key_key'] . $client_id); + if (is_array($public_key)) { + return $public_key['encryption_algorithm']; + } + $public_key = $this->getValue($this->config['public_key_key']); + if (is_array($public_key)) { + return $public_key['encryption_algorithm']; + } + + return 'RS256'; + } + + /* UserClaimsInterface */ + public function getUserClaims($user_id, $claims) + { + $userDetails = $this->getUserDetails($user_id); + if (!is_array($userDetails)) { + return false; + } + + $claims = explode(' ', trim($claims)); + $userClaims = array(); + + // for each requested claim, if the user has the claim, set it in the response + $validClaims = explode(' ', self::VALID_CLAIMS); + foreach ($validClaims as $validClaim) { + if (in_array($validClaim, $claims)) { + if ($validClaim == 'address') { + // address is an object with subfields + $userClaims['address'] = $this->getUserClaim($validClaim, $userDetails['address'] ?: $userDetails); + } else { + $userClaims = array_merge($userClaims, $this->getUserClaim($validClaim, $userDetails)); + } + } + } + + return $userClaims; + } + + protected function getUserClaim($claim, $userDetails) + { + $userClaims = array(); + $claimValuesString = constant(sprintf('self::%s_CLAIM_VALUES', strtoupper($claim))); + $claimValues = explode(' ', $claimValuesString); + + foreach ($claimValues as $value) { + if ($value == 'email_verified') { + $userClaims[$value] = $userDetails[$value]=='true' ? true : false; + } else { + $userClaims[$value] = isset($userDetails[$value]) ? $userDetails[$value] : null; + } + } + + return $userClaims; + } + +} diff --git a/library/oauth2/src/OAuth2/Storage/ClientCredentialsInterface.php b/library/oauth2/src/OAuth2/Storage/ClientCredentialsInterface.php new file mode 100644 index 000000000..3318c6966 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/ClientCredentialsInterface.php @@ -0,0 +1,49 @@ +<?php + +namespace OAuth2\Storage; + +/** + * Implement this interface to specify how the OAuth2 Server + * should verify client credentials + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface ClientCredentialsInterface extends ClientInterface +{ + + /** + * Make sure that the client credentials is valid. + * + * @param $client_id + * Client identifier to be check with. + * @param $client_secret + * (optional) If a secret is required, check that they've given the right one. + * + * @return + * TRUE if the client credentials are valid, and MUST return FALSE if it isn't. + * @endcode + * + * @see http://tools.ietf.org/html/rfc6749#section-3.1 + * + * @ingroup oauth2_section_3 + */ + public function checkClientCredentials($client_id, $client_secret = null); + + /** + * Determine if the client is a "public" client, and therefore + * does not require passing credentials for certain grant types + * + * @param $client_id + * Client identifier to be check with. + * + * @return + * TRUE if the client is public, and FALSE if it isn't. + * @endcode + * + * @see http://tools.ietf.org/html/rfc6749#section-2.3 + * @see https://github.com/bshaffer/oauth2-server-php/issues/257 + * + * @ingroup oauth2_section_2 + */ + public function isPublicClient($client_id); +} diff --git a/library/oauth2/src/OAuth2/Storage/ClientInterface.php b/library/oauth2/src/OAuth2/Storage/ClientInterface.php new file mode 100644 index 000000000..09a5bffc1 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/ClientInterface.php @@ -0,0 +1,66 @@ +<?php + +namespace OAuth2\Storage; + +/** + * Implement this interface to specify where the OAuth2 Server + * should retrieve client information + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface ClientInterface +{ + /** + * Get client details corresponding client_id. + * + * OAuth says we should store request URIs for each registered client. + * Implement this function to grab the stored URI for a given client id. + * + * @param $client_id + * Client identifier to be check with. + * + * @return array + * Client details. The only mandatory key in the array is "redirect_uri". + * This function MUST return FALSE if the given client does not exist or is + * invalid. "redirect_uri" can be space-delimited to allow for multiple valid uris. + * <code> + * return array( + * "redirect_uri" => REDIRECT_URI, // REQUIRED redirect_uri registered for the client + * "client_id" => CLIENT_ID, // OPTIONAL the client id + * "grant_types" => GRANT_TYPES, // OPTIONAL an array of restricted grant types + * "user_id" => USER_ID, // OPTIONAL the user identifier associated with this client + * "scope" => SCOPE, // OPTIONAL the scopes allowed for this client + * ); + * </code> + * + * @ingroup oauth2_section_4 + */ + public function getClientDetails($client_id); + + /** + * Get the scope associated with this client + * + * @return + * STRING the space-delineated scope list for the specified client_id + */ + public function getClientScope($client_id); + + /** + * Check restricted grant types of corresponding client identifier. + * + * If you want to restrict clients to certain grant types, override this + * function. + * + * @param $client_id + * Client identifier to be check with. + * @param $grant_type + * Grant type to be check with + * + * @return + * TRUE if the grant type is supported by this client identifier, and + * FALSE if it isn't. + * + * @ingroup oauth2_section_4 + */ + public function checkRestrictedGrantType($client_id, $grant_type); +} diff --git a/library/oauth2/src/OAuth2/Storage/CouchbaseDB.php b/library/oauth2/src/OAuth2/Storage/CouchbaseDB.php new file mode 100755 index 000000000..1eb55f027 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/CouchbaseDB.php @@ -0,0 +1,331 @@ +<?php + +namespace OAuth2\Storage; + +use OAuth2\OpenID\Storage\AuthorizationCodeInterface as OpenIDAuthorizationCodeInterface; + +/** + * Simple Couchbase storage for all storage types + * + * This class should be extended or overridden as required + * + * NOTE: Passwords are stored in plaintext, which is never + * a good idea. Be sure to override this for your application + * + * @author Tom Park <tom@raucter.com> + */ +class CouchbaseDB implements AuthorizationCodeInterface, + AccessTokenInterface, + ClientCredentialsInterface, + UserCredentialsInterface, + RefreshTokenInterface, + JwtBearerInterface, + OpenIDAuthorizationCodeInterface +{ + protected $db; + protected $config; + + public function __construct($connection, $config = array()) + { + if ($connection instanceof \Couchbase) { + $this->db = $connection; + } else { + if (!is_array($connection) || !is_array($connection['servers'])) { + throw new \InvalidArgumentException('First argument to OAuth2\Storage\CouchbaseDB must be an instance of Couchbase or a configuration array containing a server array'); + } + + $this->db = new \Couchbase($connection['servers'], (!isset($connection['username'])) ? '' : $connection['username'], (!isset($connection['password'])) ? '' : $connection['password'], $connection['bucket'], false); + } + + $this->config = array_merge(array( + 'client_table' => 'oauth_clients', + 'access_token_table' => 'oauth_access_tokens', + 'refresh_token_table' => 'oauth_refresh_tokens', + 'code_table' => 'oauth_authorization_codes', + 'user_table' => 'oauth_users', + 'jwt_table' => 'oauth_jwt', + ), $config); + } + + // Helper function to access couchbase item by type: + protected function getObjectByType($name,$id) + { + return json_decode($this->db->get($this->config[$name].'-'.$id),true); + } + + // Helper function to set couchbase item by type: + protected function setObjectByType($name,$id,$array) + { + $array['type'] = $name; + + return $this->db->set($this->config[$name].'-'.$id,json_encode($array)); + } + + // Helper function to delete couchbase item by type, wait for persist to at least 1 node + protected function deleteObjectByType($name,$id) + { + $this->db->delete($this->config[$name].'-'.$id,"",1); + } + + /* ClientCredentialsInterface */ + public function checkClientCredentials($client_id, $client_secret = null) + { + if ($result = $this->getObjectByType('client_table',$client_id)) { + return $result['client_secret'] == $client_secret; + } + + return false; + } + + public function isPublicClient($client_id) + { + if (!$result = $this->getObjectByType('client_table',$client_id)) { + return false; + } + + return empty($result['client_secret']); + } + + /* ClientInterface */ + public function getClientDetails($client_id) + { + $result = $this->getObjectByType('client_table',$client_id); + + return is_null($result) ? false : $result; + } + + public function setClientDetails($client_id, $client_secret = null, $redirect_uri = null, $grant_types = null, $scope = null, $user_id = null) + { + if ($this->getClientDetails($client_id)) { + + $this->setObjectByType('client_table',$client_id, array( + 'client_id' => $client_id, + 'client_secret' => $client_secret, + 'redirect_uri' => $redirect_uri, + 'grant_types' => $grant_types, + 'scope' => $scope, + 'user_id' => $user_id, + )); + } else { + $this->setObjectByType('client_table',$client_id, array( + 'client_id' => $client_id, + 'client_secret' => $client_secret, + 'redirect_uri' => $redirect_uri, + 'grant_types' => $grant_types, + 'scope' => $scope, + 'user_id' => $user_id, + )); + } + + return true; + } + + public function checkRestrictedGrantType($client_id, $grant_type) + { + $details = $this->getClientDetails($client_id); + if (isset($details['grant_types'])) { + $grant_types = explode(' ', $details['grant_types']); + + return in_array($grant_type, $grant_types); + } + + // if grant_types are not defined, then none are restricted + return true; + } + + /* AccessTokenInterface */ + public function getAccessToken($access_token) + { + $token = $this->getObjectByType('access_token_table',$access_token); + + return is_null($token) ? false : $token; + } + + public function setAccessToken($access_token, $client_id, $user_id, $expires, $scope = null) + { + // if it exists, update it. + if ($this->getAccessToken($access_token)) { + $this->setObjectByType('access_token_table',$access_token, array( + 'access_token' => $access_token, + 'client_id' => $client_id, + 'expires' => $expires, + 'user_id' => $user_id, + 'scope' => $scope + )); + } else { + $this->setObjectByType('access_token_table',$access_token, array( + 'access_token' => $access_token, + 'client_id' => $client_id, + 'expires' => $expires, + 'user_id' => $user_id, + 'scope' => $scope + )); + } + + return true; + } + + /* AuthorizationCodeInterface */ + public function getAuthorizationCode($code) + { + $code = $this->getObjectByType('code_table',$code); + + return is_null($code) ? false : $code; + } + + public function setAuthorizationCode($code, $client_id, $user_id, $redirect_uri, $expires, $scope = null, $id_token = null) + { + // if it exists, update it. + if ($this->getAuthorizationCode($code)) { + $this->setObjectByType('code_table',$code, array( + 'authorization_code' => $code, + 'client_id' => $client_id, + 'user_id' => $user_id, + 'redirect_uri' => $redirect_uri, + 'expires' => $expires, + 'scope' => $scope, + 'id_token' => $id_token, + )); + } else { + $this->setObjectByType('code_table',$code,array( + 'authorization_code' => $code, + 'client_id' => $client_id, + 'user_id' => $user_id, + 'redirect_uri' => $redirect_uri, + 'expires' => $expires, + 'scope' => $scope, + 'id_token' => $id_token, + )); + } + + return true; + } + + public function expireAuthorizationCode($code) + { + $this->deleteObjectByType('code_table',$code); + + return true; + } + + /* UserCredentialsInterface */ + public function checkUserCredentials($username, $password) + { + if ($user = $this->getUser($username)) { + return $this->checkPassword($user, $password); + } + + return false; + } + + public function getUserDetails($username) + { + if ($user = $this->getUser($username)) { + $user['user_id'] = $user['username']; + } + + return $user; + } + + /* RefreshTokenInterface */ + public function getRefreshToken($refresh_token) + { + $token = $this->getObjectByType('refresh_token_table',$refresh_token); + + return is_null($token) ? false : $token; + } + + public function setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope = null) + { + $this->setObjectByType('refresh_token_table',$refresh_token, array( + 'refresh_token' => $refresh_token, + 'client_id' => $client_id, + 'user_id' => $user_id, + 'expires' => $expires, + 'scope' => $scope + )); + + return true; + } + + public function unsetRefreshToken($refresh_token) + { + $this->deleteObjectByType('refresh_token_table',$refresh_token); + + return true; + } + + // plaintext passwords are bad! Override this for your application + protected function checkPassword($user, $password) + { + return $user['password'] == $password; + } + + public function getUser($username) + { + $result = $this->getObjectByType('user_table',$username); + + return is_null($result) ? false : $result; + } + + public function setUser($username, $password, $firstName = null, $lastName = null) + { + if ($this->getUser($username)) { + $this->setObjectByType('user_table',$username, array( + 'username' => $username, + 'password' => $password, + 'first_name' => $firstName, + 'last_name' => $lastName + )); + + } else { + $this->setObjectByType('user_table',$username, array( + 'username' => $username, + 'password' => $password, + 'first_name' => $firstName, + 'last_name' => $lastName + )); + + } + + return true; + } + + public function getClientKey($client_id, $subject) + { + if (!$jwt = $this->getObjectByType('jwt_table',$client_id)) { + return false; + } + + if (isset($jwt['subject']) && $jwt['subject'] == $subject) { + return $jwt['key']; + } + + return false; + } + + public function getClientScope($client_id) + { + if (!$clientDetails = $this->getClientDetails($client_id)) { + return false; + } + + if (isset($clientDetails['scope'])) { + return $clientDetails['scope']; + } + + return null; + } + + public function getJti($client_id, $subject, $audience, $expiration, $jti) + { + //TODO: Needs couchbase implementation. + throw new \Exception('getJti() for the Couchbase driver is currently unimplemented.'); + } + + public function setJti($client_id, $subject, $audience, $expiration, $jti) + { + //TODO: Needs couchbase implementation. + throw new \Exception('setJti() for the Couchbase driver is currently unimplemented.'); + } +} diff --git a/library/oauth2/src/OAuth2/Storage/DynamoDB.php b/library/oauth2/src/OAuth2/Storage/DynamoDB.php new file mode 100644 index 000000000..8347ab258 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/DynamoDB.php @@ -0,0 +1,540 @@ +<?php + +namespace OAuth2\Storage; + +use Aws\DynamoDb\DynamoDbClient; + +use OAuth2\OpenID\Storage\UserClaimsInterface; +use OAuth2\OpenID\Storage\AuthorizationCodeInterface as OpenIDAuthorizationCodeInterface; +/** + * DynamoDB storage for all storage types + * + * To use, install "aws/aws-sdk-php" via composer + * <code> + * composer require aws/aws-sdk-php:dev-master + * </code> + * + * Once this is done, instantiate the DynamoDB client + * <code> + * $storage = new OAuth2\Storage\Dynamodb(array("key" => "YOURKEY", "secret" => "YOURSECRET", "region" => "YOURREGION")); + * </code> + * + * Table : + * - oauth_access_tokens (primary hash key : access_token) + * - oauth_authorization_codes (primary hash key : authorization_code) + * - oauth_clients (primary hash key : client_id) + * - oauth_jwt (primary hash key : client_id, primary range key : subject) + * - oauth_public_keys (primary hash key : client_id) + * - oauth_refresh_tokens (primary hash key : refresh_token) + * - oauth_scopes (primary hash key : scope, secondary index : is_default-index hash key is_default) + * - oauth_users (primary hash key : username) + * + * @author Frederic AUGUSTE <frederic.auguste at gmail dot com> + */ +class DynamoDB implements + AuthorizationCodeInterface, + AccessTokenInterface, + ClientCredentialsInterface, + UserCredentialsInterface, + RefreshTokenInterface, + JwtBearerInterface, + ScopeInterface, + PublicKeyInterface, + UserClaimsInterface, + OpenIDAuthorizationCodeInterface +{ + protected $client; + protected $config; + + public function __construct($connection, $config = array()) + { + if (!($connection instanceof DynamoDbClient)) { + if (!is_array($connection)) { + throw new \InvalidArgumentException('First argument to OAuth2\Storage\Dynamodb must be an instance a configuration array containt key, secret, region'); + } + if (!array_key_exists("key",$connection) || !array_key_exists("secret",$connection) || !array_key_exists("region",$connection) ) { + throw new \InvalidArgumentException('First argument to OAuth2\Storage\Dynamodb must be an instance a configuration array containt key, secret, region'); + } + $this->client = DynamoDbClient::factory(array( + 'key' => $connection["key"], + 'secret' => $connection["secret"], + 'region' =>$connection["region"] + )); + } else { + $this->client = $connection; + } + + $this->config = array_merge(array( + 'client_table' => 'oauth_clients', + 'access_token_table' => 'oauth_access_tokens', + 'refresh_token_table' => 'oauth_refresh_tokens', + 'code_table' => 'oauth_authorization_codes', + 'user_table' => 'oauth_users', + 'jwt_table' => 'oauth_jwt', + 'scope_table' => 'oauth_scopes', + 'public_key_table' => 'oauth_public_keys', + ), $config); + } + + /* OAuth2\Storage\ClientCredentialsInterface */ + public function checkClientCredentials($client_id, $client_secret = null) + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['client_table'], + "Key" => array('client_id' => array('S' => $client_id)) + )); + + return $result->count()==1 && $result["Item"]["client_secret"]["S"] == $client_secret; + } + + public function isPublicClient($client_id) + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['client_table'], + "Key" => array('client_id' => array('S' => $client_id)) + )); + + if ($result->count()==0) { + return false ; + } + + return empty($result["Item"]["client_secret"]); + } + + /* OAuth2\Storage\ClientInterface */ + public function getClientDetails($client_id) + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['client_table'], + "Key" => array('client_id' => array('S' => $client_id)) + )); + if ($result->count()==0) { + return false ; + } + $result = $this->dynamo2array($result); + foreach (array('client_id', 'client_secret', 'redirect_uri', 'grant_types', 'scope', 'user_id') as $key => $val) { + if (!array_key_exists ($val, $result)) { + $result[$val] = null; + } + } + + return $result; + } + + public function setClientDetails($client_id, $client_secret = null, $redirect_uri = null, $grant_types = null, $scope = null, $user_id = null) + { + $clientData = compact('client_id', 'client_secret', 'redirect_uri', 'grant_types', 'scope', 'user_id'); + $clientData = array_filter($clientData, 'self::isNotEmpty'); + + $result = $this->client->putItem(array( + 'TableName' => $this->config['client_table'], + 'Item' => $this->client->formatAttributes($clientData) + )); + + return true; + } + + public function checkRestrictedGrantType($client_id, $grant_type) + { + $details = $this->getClientDetails($client_id); + if (isset($details['grant_types'])) { + $grant_types = explode(' ', $details['grant_types']); + + return in_array($grant_type, (array) $grant_types); + } + + // if grant_types are not defined, then none are restricted + return true; + } + + /* OAuth2\Storage\AccessTokenInterface */ + public function getAccessToken($access_token) + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['access_token_table'], + "Key" => array('access_token' => array('S' => $access_token)) + )); + if ($result->count()==0) { + return false ; + } + $token = $this->dynamo2array($result); + if (array_key_exists ('expires', $token)) { + $token['expires'] = strtotime($token['expires']); + } + + return $token; + } + + public function setAccessToken($access_token, $client_id, $user_id, $expires, $scope = null) + { + // convert expires to datestring + $expires = date('Y-m-d H:i:s', $expires); + + $clientData = compact('access_token', 'client_id', 'user_id', 'expires', 'scope'); + $clientData = array_filter($clientData, 'self::isNotEmpty'); + + $result = $this->client->putItem(array( + 'TableName' => $this->config['access_token_table'], + 'Item' => $this->client->formatAttributes($clientData) + )); + + return true; + + } + + public function unsetAccessToken($access_token) + { + $result = $this->client->deleteItem(array( + 'TableName' => $this->config['access_token_table'], + 'Key' => $this->client->formatAttributes(array("access_token" => $access_token)), + 'ReturnValues' => 'ALL_OLD', + )); + + return null !== $result->get('Attributes'); + } + + /* OAuth2\Storage\AuthorizationCodeInterface */ + public function getAuthorizationCode($code) + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['code_table'], + "Key" => array('authorization_code' => array('S' => $code)) + )); + if ($result->count()==0) { + return false ; + } + $token = $this->dynamo2array($result); + if (!array_key_exists("id_token", $token )) { + $token['id_token'] = null; + } + $token['expires'] = strtotime($token['expires']); + + return $token; + + } + + public function setAuthorizationCode($authorization_code, $client_id, $user_id, $redirect_uri, $expires, $scope = null, $id_token = null) + { + // convert expires to datestring + $expires = date('Y-m-d H:i:s', $expires); + + $clientData = compact('authorization_code', 'client_id', 'user_id', 'redirect_uri', 'expires', 'id_token', 'scope'); + $clientData = array_filter($clientData, 'self::isNotEmpty'); + + $result = $this->client->putItem(array( + 'TableName' => $this->config['code_table'], + 'Item' => $this->client->formatAttributes($clientData) + )); + + return true; + } + + public function expireAuthorizationCode($code) + { + + $result = $this->client->deleteItem(array( + 'TableName' => $this->config['code_table'], + 'Key' => $this->client->formatAttributes(array("authorization_code" => $code)) + )); + + return true; + } + + /* OAuth2\Storage\UserCredentialsInterface */ + public function checkUserCredentials($username, $password) + { + if ($user = $this->getUser($username)) { + return $this->checkPassword($user, $password); + } + + return false; + } + + public function getUserDetails($username) + { + return $this->getUser($username); + } + + /* UserClaimsInterface */ + public function getUserClaims($user_id, $claims) + { + if (!$userDetails = $this->getUserDetails($user_id)) { + return false; + } + + $claims = explode(' ', trim($claims)); + $userClaims = array(); + + // for each requested claim, if the user has the claim, set it in the response + $validClaims = explode(' ', self::VALID_CLAIMS); + foreach ($validClaims as $validClaim) { + if (in_array($validClaim, $claims)) { + if ($validClaim == 'address') { + // address is an object with subfields + $userClaims['address'] = $this->getUserClaim($validClaim, $userDetails['address'] ?: $userDetails); + } else { + $userClaims = array_merge($userClaims, $this->getUserClaim($validClaim, $userDetails)); + } + } + } + + return $userClaims; + } + + protected function getUserClaim($claim, $userDetails) + { + $userClaims = array(); + $claimValuesString = constant(sprintf('self::%s_CLAIM_VALUES', strtoupper($claim))); + $claimValues = explode(' ', $claimValuesString); + + foreach ($claimValues as $value) { + if ($value == 'email_verified') { + $userClaims[$value] = $userDetails[$value]=='true' ? true : false; + } else { + $userClaims[$value] = isset($userDetails[$value]) ? $userDetails[$value] : null; + } + } + + return $userClaims; + } + + /* OAuth2\Storage\RefreshTokenInterface */ + public function getRefreshToken($refresh_token) + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['refresh_token_table'], + "Key" => array('refresh_token' => array('S' => $refresh_token)) + )); + if ($result->count()==0) { + return false ; + } + $token = $this->dynamo2array($result); + $token['expires'] = strtotime($token['expires']); + + return $token; + } + + public function setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope = null) + { + // convert expires to datestring + $expires = date('Y-m-d H:i:s', $expires); + + $clientData = compact('refresh_token', 'client_id', 'user_id', 'expires', 'scope'); + $clientData = array_filter($clientData, 'self::isNotEmpty'); + + $result = $this->client->putItem(array( + 'TableName' => $this->config['refresh_token_table'], + 'Item' => $this->client->formatAttributes($clientData) + )); + + return true; + } + + public function unsetRefreshToken($refresh_token) + { + $result = $this->client->deleteItem(array( + 'TableName' => $this->config['refresh_token_table'], + 'Key' => $this->client->formatAttributes(array("refresh_token" => $refresh_token)) + )); + + return true; + } + + // plaintext passwords are bad! Override this for your application + protected function checkPassword($user, $password) + { + return $user['password'] == $this->hashPassword($password); + } + + // use a secure hashing algorithm when storing passwords. Override this for your application + protected function hashPassword($password) + { + return sha1($password); + } + + public function getUser($username) + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['user_table'], + "Key" => array('username' => array('S' => $username)) + )); + if ($result->count()==0) { + return false ; + } + $token = $this->dynamo2array($result); + $token['user_id'] = $username; + + return $token; + } + + public function setUser($username, $password, $first_name = null, $last_name = null) + { + // do not store in plaintext + $password = $this->hashPassword($password); + + $clientData = compact('username', 'password', 'first_name', 'last_name'); + $clientData = array_filter($clientData, 'self::isNotEmpty'); + + $result = $this->client->putItem(array( + 'TableName' => $this->config['user_table'], + 'Item' => $this->client->formatAttributes($clientData) + )); + + return true; + + } + + /* ScopeInterface */ + public function scopeExists($scope) + { + $scope = explode(' ', $scope); + $scope_query = array(); + $count = 0; + foreach ($scope as $key => $val) { + $result = $this->client->query(array( + 'TableName' => $this->config['scope_table'], + 'Select' => 'COUNT', + 'KeyConditions' => array( + 'scope' => array( + 'AttributeValueList' => array(array('S' => $val)), + 'ComparisonOperator' => 'EQ' + ) + ) + )); + $count += $result['Count']; + } + + return $count == count($scope); + } + + public function getDefaultScope($client_id = null) + { + + $result = $this->client->query(array( + 'TableName' => $this->config['scope_table'], + 'IndexName' => 'is_default-index', + 'Select' => 'ALL_ATTRIBUTES', + 'KeyConditions' => array( + 'is_default' => array( + 'AttributeValueList' => array(array('S' => 'true')), + 'ComparisonOperator' => 'EQ', + ), + ) + )); + $defaultScope = array(); + if ($result->count() > 0) { + $array = $result->toArray(); + foreach ($array["Items"] as $item) { + $defaultScope[] = $item['scope']['S']; + } + + return empty($defaultScope) ? null : implode(' ', $defaultScope); + } + + return null; + } + + /* JWTBearerInterface */ + public function getClientKey($client_id, $subject) + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['jwt_table'], + "Key" => array('client_id' => array('S' => $client_id), 'subject' => array('S' => $subject)) + )); + if ($result->count()==0) { + return false ; + } + $token = $this->dynamo2array($result); + + return $token['public_key']; + } + + public function getClientScope($client_id) + { + if (!$clientDetails = $this->getClientDetails($client_id)) { + return false; + } + + if (isset($clientDetails['scope'])) { + return $clientDetails['scope']; + } + + return null; + } + + public function getJti($client_id, $subject, $audience, $expires, $jti) + { + //TODO not use. + } + + public function setJti($client_id, $subject, $audience, $expires, $jti) + { + //TODO not use. + } + + /* PublicKeyInterface */ + public function getPublicKey($client_id = '0') + { + + $result = $this->client->getItem(array( + "TableName"=> $this->config['public_key_table'], + "Key" => array('client_id' => array('S' => $client_id)) + )); + if ($result->count()==0) { + return false ; + } + $token = $this->dynamo2array($result); + + return $token['public_key']; + + } + + public function getPrivateKey($client_id = '0') + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['public_key_table'], + "Key" => array('client_id' => array('S' => $client_id)) + )); + if ($result->count()==0) { + return false ; + } + $token = $this->dynamo2array($result); + + return $token['private_key']; + } + + public function getEncryptionAlgorithm($client_id = null) + { + $result = $this->client->getItem(array( + "TableName"=> $this->config['public_key_table'], + "Key" => array('client_id' => array('S' => $client_id)) + )); + if ($result->count()==0) { + return 'RS256' ; + } + $token = $this->dynamo2array($result); + + return $token['encryption_algorithm']; + } + + /** + * Transform dynamodb resultset to an array. + * @param $dynamodbResult + * @return $array + */ + private function dynamo2array($dynamodbResult) + { + $result = array(); + foreach ($dynamodbResult["Item"] as $key => $val) { + $result[$key] = $val["S"]; + $result[] = $val["S"]; + } + + return $result; + } + + private static function isNotEmpty($value) + { + return null !== $value && '' !== $value; + } +} diff --git a/library/oauth2/src/OAuth2/Storage/JwtAccessToken.php b/library/oauth2/src/OAuth2/Storage/JwtAccessToken.php new file mode 100644 index 000000000..75b49d301 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/JwtAccessToken.php @@ -0,0 +1,88 @@ +<?php + +namespace OAuth2\Storage; + +use OAuth2\Encryption\EncryptionInterface; +use OAuth2\Encryption\Jwt; + +/** + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class JwtAccessToken implements JwtAccessTokenInterface +{ + protected $publicKeyStorage; + protected $tokenStorage; + protected $encryptionUtil; + + /** + * @param OAuth2\Encryption\PublicKeyInterface $publicKeyStorage the public key encryption to use + * @param OAuth2\Storage\AccessTokenInterface $tokenStorage OPTIONAL persist the access token to another storage. This is useful if + * you want to retain access token grant information somewhere, but + * is not necessary when using this grant type. + * @param OAuth2\Encryption\EncryptionInterface $encryptionUtil OPTIONAL class to use for "encode" and "decode" functions. + */ + public function __construct(PublicKeyInterface $publicKeyStorage, AccessTokenInterface $tokenStorage = null, EncryptionInterface $encryptionUtil = null) + { + $this->publicKeyStorage = $publicKeyStorage; + $this->tokenStorage = $tokenStorage; + if (is_null($encryptionUtil)) { + $encryptionUtil = new Jwt; + } + $this->encryptionUtil = $encryptionUtil; + } + + public function getAccessToken($oauth_token) + { + // just decode the token, don't verify + if (!$tokenData = $this->encryptionUtil->decode($oauth_token, null, false)) { + return false; + } + + $client_id = isset($tokenData['aud']) ? $tokenData['aud'] : null; + $public_key = $this->publicKeyStorage->getPublicKey($client_id); + $algorithm = $this->publicKeyStorage->getEncryptionAlgorithm($client_id); + + // now that we have the client_id, verify the token + if (false === $this->encryptionUtil->decode($oauth_token, $public_key, array($algorithm))) { + return false; + } + + // normalize the JWT claims to the format expected by other components in this library + return $this->convertJwtToOAuth2($tokenData); + } + + public function setAccessToken($oauth_token, $client_id, $user_id, $expires, $scope = null) + { + if ($this->tokenStorage) { + return $this->tokenStorage->setAccessToken($oauth_token, $client_id, $user_id, $expires, $scope); + } + } + + public function unsetAccessToken($access_token) + { + if ($this->tokenStorage) { + return $this->tokenStorage->unsetAccessToken($access_token); + } + } + + + // converts a JWT access token into an OAuth2-friendly format + protected function convertJwtToOAuth2($tokenData) + { + $keyMapping = array( + 'aud' => 'client_id', + 'exp' => 'expires', + 'sub' => 'user_id' + ); + + foreach ($keyMapping as $jwtKey => $oauth2Key) { + if (isset($tokenData[$jwtKey])) { + $tokenData[$oauth2Key] = $tokenData[$jwtKey]; + unset($tokenData[$jwtKey]); + } + } + + return $tokenData; + } +} diff --git a/library/oauth2/src/OAuth2/Storage/JwtAccessTokenInterface.php b/library/oauth2/src/OAuth2/Storage/JwtAccessTokenInterface.php new file mode 100644 index 000000000..3abb2aa2d --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/JwtAccessTokenInterface.php @@ -0,0 +1,14 @@ +<?php + +namespace OAuth2\Storage; + +/** + * No specific methods, but allows the library to check "instanceof" + * against interface rather than class + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface JwtAccessTokenInterface extends AccessTokenInterface +{ + +} diff --git a/library/oauth2/src/OAuth2/Storage/JwtBearerInterface.php b/library/oauth2/src/OAuth2/Storage/JwtBearerInterface.php new file mode 100644 index 000000000..c83aa72ea --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/JwtBearerInterface.php @@ -0,0 +1,74 @@ +<?php + +namespace OAuth2\Storage; + +/** + * Implement this interface to specify where the OAuth2 Server + * should get the JWT key for clients + * + * @TODO consider extending ClientInterface, as this will almost always + * be the same storage as retrieving clientData + * + * @author F21 + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface JwtBearerInterface +{ + /** + * Get the public key associated with a client_id + * + * @param $client_id + * Client identifier to be checked with. + * + * @return + * STRING Return the public key for the client_id if it exists, and MUST return FALSE if it doesn't. + */ + public function getClientKey($client_id, $subject); + + /** + * Get a jti (JSON token identifier) by matching against the client_id, subject, audience and expiration. + * + * @param $client_id + * Client identifier to match. + * + * @param $subject + * The subject to match. + * + * @param $audience + * The audience to match. + * + * @param $expiration + * The expiration of the jti. + * + * @param $jti + * The jti to match. + * + * @return + * An associative array as below, and return NULL if the jti does not exist. + * - issuer: Stored client identifier. + * - subject: Stored subject. + * - audience: Stored audience. + * - expires: Stored expiration in unix timestamp. + * - jti: The stored jti. + */ + public function getJti($client_id, $subject, $audience, $expiration, $jti); + + /** + * Store a used jti so that we can check against it to prevent replay attacks. + * @param $client_id + * Client identifier to insert. + * + * @param $subject + * The subject to insert. + * + * @param $audience + * The audience to insert. + * + * @param $expiration + * The expiration of the jti. + * + * @param $jti + * The jti to insert. + */ + public function setJti($client_id, $subject, $audience, $expiration, $jti); +} diff --git a/library/oauth2/src/OAuth2/Storage/Memory.php b/library/oauth2/src/OAuth2/Storage/Memory.php new file mode 100644 index 000000000..42d833ccb --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/Memory.php @@ -0,0 +1,381 @@ +<?php + +namespace OAuth2\Storage; + +use OAuth2\OpenID\Storage\UserClaimsInterface; +use OAuth2\OpenID\Storage\AuthorizationCodeInterface as OpenIDAuthorizationCodeInterface; + +/** + * Simple in-memory storage for all storage types + * + * NOTE: This class should never be used in production, and is + * a stub class for example use only + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class Memory implements AuthorizationCodeInterface, + UserCredentialsInterface, + UserClaimsInterface, + AccessTokenInterface, + ClientCredentialsInterface, + RefreshTokenInterface, + JwtBearerInterface, + ScopeInterface, + PublicKeyInterface, + OpenIDAuthorizationCodeInterface +{ + public $authorizationCodes; + public $userCredentials; + public $clientCredentials; + public $refreshTokens; + public $accessTokens; + public $jwt; + public $jti; + public $supportedScopes; + public $defaultScope; + public $keys; + + public function __construct($params = array()) + { + $params = array_merge(array( + 'authorization_codes' => array(), + 'user_credentials' => array(), + 'client_credentials' => array(), + 'refresh_tokens' => array(), + 'access_tokens' => array(), + 'jwt' => array(), + 'jti' => array(), + 'default_scope' => null, + 'supported_scopes' => array(), + 'keys' => array(), + ), $params); + + $this->authorizationCodes = $params['authorization_codes']; + $this->userCredentials = $params['user_credentials']; + $this->clientCredentials = $params['client_credentials']; + $this->refreshTokens = $params['refresh_tokens']; + $this->accessTokens = $params['access_tokens']; + $this->jwt = $params['jwt']; + $this->jti = $params['jti']; + $this->supportedScopes = $params['supported_scopes']; + $this->defaultScope = $params['default_scope']; + $this->keys = $params['keys']; + } + + /* AuthorizationCodeInterface */ + public function getAuthorizationCode($code) + { + if (!isset($this->authorizationCodes[$code])) { + return false; + } + + return array_merge(array( + 'authorization_code' => $code, + ), $this->authorizationCodes[$code]); + } + + public function setAuthorizationCode($code, $client_id, $user_id, $redirect_uri, $expires, $scope = null, $id_token = null) + { + $this->authorizationCodes[$code] = compact('code', 'client_id', 'user_id', 'redirect_uri', 'expires', 'scope', 'id_token'); + + return true; + } + + public function setAuthorizationCodes($authorization_codes) + { + $this->authorizationCodes = $authorization_codes; + } + + public function expireAuthorizationCode($code) + { + unset($this->authorizationCodes[$code]); + } + + /* UserCredentialsInterface */ + public function checkUserCredentials($username, $password) + { + $userDetails = $this->getUserDetails($username); + + return $userDetails && $userDetails['password'] && $userDetails['password'] === $password; + } + + public function setUser($username, $password, $firstName = null, $lastName = null) + { + $this->userCredentials[$username] = array( + 'password' => $password, + 'first_name' => $firstName, + 'last_name' => $lastName, + ); + + return true; + } + + public function getUserDetails($username) + { + if (!isset($this->userCredentials[$username])) { + return false; + } + + return array_merge(array( + 'user_id' => $username, + 'password' => null, + 'first_name' => null, + 'last_name' => null, + ), $this->userCredentials[$username]); + } + + /* UserClaimsInterface */ + public function getUserClaims($user_id, $claims) + { + if (!$userDetails = $this->getUserDetails($user_id)) { + return false; + } + + $claims = explode(' ', trim($claims)); + $userClaims = array(); + + // for each requested claim, if the user has the claim, set it in the response + $validClaims = explode(' ', self::VALID_CLAIMS); + foreach ($validClaims as $validClaim) { + if (in_array($validClaim, $claims)) { + if ($validClaim == 'address') { + // address is an object with subfields + $userClaims['address'] = $this->getUserClaim($validClaim, $userDetails['address'] ?: $userDetails); + } else { + $userClaims = array_merge($userClaims, $this->getUserClaim($validClaim, $userDetails)); + } + } + } + + return $userClaims; + } + + protected function getUserClaim($claim, $userDetails) + { + $userClaims = array(); + $claimValuesString = constant(sprintf('self::%s_CLAIM_VALUES', strtoupper($claim))); + $claimValues = explode(' ', $claimValuesString); + + foreach ($claimValues as $value) { + $userClaims[$value] = isset($userDetails[$value]) ? $userDetails[$value] : null; + } + + return $userClaims; + } + + /* ClientCredentialsInterface */ + public function checkClientCredentials($client_id, $client_secret = null) + { + return isset($this->clientCredentials[$client_id]['client_secret']) && $this->clientCredentials[$client_id]['client_secret'] === $client_secret; + } + + public function isPublicClient($client_id) + { + if (!isset($this->clientCredentials[$client_id])) { + return false; + } + + return empty($this->clientCredentials[$client_id]['client_secret']); + } + + /* ClientInterface */ + public function getClientDetails($client_id) + { + if (!isset($this->clientCredentials[$client_id])) { + return false; + } + + $clientDetails = array_merge(array( + 'client_id' => $client_id, + 'client_secret' => null, + 'redirect_uri' => null, + 'scope' => null, + ), $this->clientCredentials[$client_id]); + + return $clientDetails; + } + + public function checkRestrictedGrantType($client_id, $grant_type) + { + if (isset($this->clientCredentials[$client_id]['grant_types'])) { + $grant_types = explode(' ', $this->clientCredentials[$client_id]['grant_types']); + + return in_array($grant_type, $grant_types); + } + + // if grant_types are not defined, then none are restricted + return true; + } + + public function setClientDetails($client_id, $client_secret = null, $redirect_uri = null, $grant_types = null, $scope = null, $user_id = null) + { + $this->clientCredentials[$client_id] = array( + 'client_id' => $client_id, + 'client_secret' => $client_secret, + 'redirect_uri' => $redirect_uri, + 'grant_types' => $grant_types, + 'scope' => $scope, + 'user_id' => $user_id, + ); + + return true; + } + + /* RefreshTokenInterface */ + public function getRefreshToken($refresh_token) + { + return isset($this->refreshTokens[$refresh_token]) ? $this->refreshTokens[$refresh_token] : false; + } + + public function setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope = null) + { + $this->refreshTokens[$refresh_token] = compact('refresh_token', 'client_id', 'user_id', 'expires', 'scope'); + + return true; + } + + public function unsetRefreshToken($refresh_token) + { + if (isset($this->refreshTokens[$refresh_token])) { + unset($this->refreshTokens[$refresh_token]); + + return true; + } + + return false; + } + + public function setRefreshTokens($refresh_tokens) + { + $this->refreshTokens = $refresh_tokens; + } + + /* AccessTokenInterface */ + public function getAccessToken($access_token) + { + return isset($this->accessTokens[$access_token]) ? $this->accessTokens[$access_token] : false; + } + + public function setAccessToken($access_token, $client_id, $user_id, $expires, $scope = null, $id_token = null) + { + $this->accessTokens[$access_token] = compact('access_token', 'client_id', 'user_id', 'expires', 'scope', 'id_token'); + + return true; + } + + public function unsetAccessToken($access_token) + { + if (isset($this->accessTokens[$access_token])) { + unset($this->accessTokens[$access_token]); + + return true; + } + + return false; + } + + public function scopeExists($scope) + { + $scope = explode(' ', trim($scope)); + + return (count(array_diff($scope, $this->supportedScopes)) == 0); + } + + public function getDefaultScope($client_id = null) + { + return $this->defaultScope; + } + + /*JWTBearerInterface */ + public function getClientKey($client_id, $subject) + { + if (isset($this->jwt[$client_id])) { + $jwt = $this->jwt[$client_id]; + if ($jwt) { + if ($jwt["subject"] == $subject) { + return $jwt["key"]; + } + } + } + + return false; + } + + public function getClientScope($client_id) + { + if (!$clientDetails = $this->getClientDetails($client_id)) { + return false; + } + + if (isset($clientDetails['scope'])) { + return $clientDetails['scope']; + } + + return null; + } + + public function getJti($client_id, $subject, $audience, $expires, $jti) + { + foreach ($this->jti as $storedJti) { + if ($storedJti['issuer'] == $client_id && $storedJti['subject'] == $subject && $storedJti['audience'] == $audience && $storedJti['expires'] == $expires && $storedJti['jti'] == $jti) { + return array( + 'issuer' => $storedJti['issuer'], + 'subject' => $storedJti['subject'], + 'audience' => $storedJti['audience'], + 'expires' => $storedJti['expires'], + 'jti' => $storedJti['jti'] + ); + } + } + + return null; + } + + public function setJti($client_id, $subject, $audience, $expires, $jti) + { + $this->jti[] = array('issuer' => $client_id, 'subject' => $subject, 'audience' => $audience, 'expires' => $expires, 'jti' => $jti); + } + + /*PublicKeyInterface */ + public function getPublicKey($client_id = null) + { + if (isset($this->keys[$client_id])) { + return $this->keys[$client_id]['public_key']; + } + + // use a global encryption pair + if (isset($this->keys['public_key'])) { + return $this->keys['public_key']; + } + + return false; + } + + public function getPrivateKey($client_id = null) + { + if (isset($this->keys[$client_id])) { + return $this->keys[$client_id]['private_key']; + } + + // use a global encryption pair + if (isset($this->keys['private_key'])) { + return $this->keys['private_key']; + } + + return false; + } + + public function getEncryptionAlgorithm($client_id = null) + { + if (isset($this->keys[$client_id]['encryption_algorithm'])) { + return $this->keys[$client_id]['encryption_algorithm']; + } + + // use a global encryption algorithm + if (isset($this->keys['encryption_algorithm'])) { + return $this->keys['encryption_algorithm']; + } + + return 'RS256'; + } +} diff --git a/library/oauth2/src/OAuth2/Storage/Mongo.php b/library/oauth2/src/OAuth2/Storage/Mongo.php new file mode 100644 index 000000000..cef35e5e9 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/Mongo.php @@ -0,0 +1,339 @@ +<?php + +namespace OAuth2\Storage; + +use OAuth2\OpenID\Storage\AuthorizationCodeInterface as OpenIDAuthorizationCodeInterface; + +/** + * Simple MongoDB storage for all storage types + * + * NOTE: This class is meant to get users started + * quickly. If your application requires further + * customization, extend this class or create your own. + * + * NOTE: Passwords are stored in plaintext, which is never + * a good idea. Be sure to override this for your application + * + * @author Julien Chaumond <chaumond@gmail.com> + */ +class Mongo implements AuthorizationCodeInterface, + AccessTokenInterface, + ClientCredentialsInterface, + UserCredentialsInterface, + RefreshTokenInterface, + JwtBearerInterface, + OpenIDAuthorizationCodeInterface +{ + protected $db; + protected $config; + + public function __construct($connection, $config = array()) + { + if ($connection instanceof \MongoDB) { + $this->db = $connection; + } else { + if (!is_array($connection)) { + throw new \InvalidArgumentException('First argument to OAuth2\Storage\Mongo must be an instance of MongoDB or a configuration array'); + } + $server = sprintf('mongodb://%s:%d', $connection['host'], $connection['port']); + $m = new \MongoClient($server); + $this->db = $m->{$connection['database']}; + } + + $this->config = array_merge(array( + 'client_table' => 'oauth_clients', + 'access_token_table' => 'oauth_access_tokens', + 'refresh_token_table' => 'oauth_refresh_tokens', + 'code_table' => 'oauth_authorization_codes', + 'user_table' => 'oauth_users', + 'jwt_table' => 'oauth_jwt', + ), $config); + } + + // Helper function to access a MongoDB collection by `type`: + protected function collection($name) + { + return $this->db->{$this->config[$name]}; + } + + /* ClientCredentialsInterface */ + public function checkClientCredentials($client_id, $client_secret = null) + { + if ($result = $this->collection('client_table')->findOne(array('client_id' => $client_id))) { + return $result['client_secret'] == $client_secret; + } + + return false; + } + + public function isPublicClient($client_id) + { + if (!$result = $this->collection('client_table')->findOne(array('client_id' => $client_id))) { + return false; + } + + return empty($result['client_secret']); + } + + /* ClientInterface */ + public function getClientDetails($client_id) + { + $result = $this->collection('client_table')->findOne(array('client_id' => $client_id)); + + return is_null($result) ? false : $result; + } + + public function setClientDetails($client_id, $client_secret = null, $redirect_uri = null, $grant_types = null, $scope = null, $user_id = null) + { + if ($this->getClientDetails($client_id)) { + $this->collection('client_table')->update( + array('client_id' => $client_id), + array('$set' => array( + 'client_secret' => $client_secret, + 'redirect_uri' => $redirect_uri, + 'grant_types' => $grant_types, + 'scope' => $scope, + 'user_id' => $user_id, + )) + ); + } else { + $client = array( + 'client_id' => $client_id, + 'client_secret' => $client_secret, + 'redirect_uri' => $redirect_uri, + 'grant_types' => $grant_types, + 'scope' => $scope, + 'user_id' => $user_id, + ); + $this->collection('client_table')->insert($client); + } + + return true; + } + + public function checkRestrictedGrantType($client_id, $grant_type) + { + $details = $this->getClientDetails($client_id); + if (isset($details['grant_types'])) { + $grant_types = explode(' ', $details['grant_types']); + + return in_array($grant_type, $grant_types); + } + + // if grant_types are not defined, then none are restricted + return true; + } + + /* AccessTokenInterface */ + public function getAccessToken($access_token) + { + $token = $this->collection('access_token_table')->findOne(array('access_token' => $access_token)); + + return is_null($token) ? false : $token; + } + + public function setAccessToken($access_token, $client_id, $user_id, $expires, $scope = null) + { + // if it exists, update it. + if ($this->getAccessToken($access_token)) { + $this->collection('access_token_table')->update( + array('access_token' => $access_token), + array('$set' => array( + 'client_id' => $client_id, + 'expires' => $expires, + 'user_id' => $user_id, + 'scope' => $scope + )) + ); + } else { + $token = array( + 'access_token' => $access_token, + 'client_id' => $client_id, + 'expires' => $expires, + 'user_id' => $user_id, + 'scope' => $scope + ); + $this->collection('access_token_table')->insert($token); + } + + return true; + } + + public function unsetAccessToken($access_token) + { + $result = $this->collection('access_token_table')->remove(array( + 'access_token' => $access_token + ), array('w' => 1)); + + return $result['n'] > 0; + } + + + /* AuthorizationCodeInterface */ + public function getAuthorizationCode($code) + { + $code = $this->collection('code_table')->findOne(array('authorization_code' => $code)); + + return is_null($code) ? false : $code; + } + + public function setAuthorizationCode($code, $client_id, $user_id, $redirect_uri, $expires, $scope = null, $id_token = null) + { + // if it exists, update it. + if ($this->getAuthorizationCode($code)) { + $this->collection('code_table')->update( + array('authorization_code' => $code), + array('$set' => array( + 'client_id' => $client_id, + 'user_id' => $user_id, + 'redirect_uri' => $redirect_uri, + 'expires' => $expires, + 'scope' => $scope, + 'id_token' => $id_token, + )) + ); + } else { + $token = array( + 'authorization_code' => $code, + 'client_id' => $client_id, + 'user_id' => $user_id, + 'redirect_uri' => $redirect_uri, + 'expires' => $expires, + 'scope' => $scope, + 'id_token' => $id_token, + ); + $this->collection('code_table')->insert($token); + } + + return true; + } + + public function expireAuthorizationCode($code) + { + $this->collection('code_table')->remove(array('authorization_code' => $code)); + + return true; + } + + /* UserCredentialsInterface */ + public function checkUserCredentials($username, $password) + { + if ($user = $this->getUser($username)) { + return $this->checkPassword($user, $password); + } + + return false; + } + + public function getUserDetails($username) + { + if ($user = $this->getUser($username)) { + $user['user_id'] = $user['username']; + } + + return $user; + } + + /* RefreshTokenInterface */ + public function getRefreshToken($refresh_token) + { + $token = $this->collection('refresh_token_table')->findOne(array('refresh_token' => $refresh_token)); + + return is_null($token) ? false : $token; + } + + public function setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope = null) + { + $token = array( + 'refresh_token' => $refresh_token, + 'client_id' => $client_id, + 'user_id' => $user_id, + 'expires' => $expires, + 'scope' => $scope + ); + $this->collection('refresh_token_table')->insert($token); + + return true; + } + + public function unsetRefreshToken($refresh_token) + { + $result = $this->collection('refresh_token_table')->remove(array( + 'refresh_token' => $refresh_token + ), array('w' => 1)); + + return $result['n'] > 0; + } + + // plaintext passwords are bad! Override this for your application + protected function checkPassword($user, $password) + { + return $user['password'] == $password; + } + + public function getUser($username) + { + $result = $this->collection('user_table')->findOne(array('username' => $username)); + + return is_null($result) ? false : $result; + } + + public function setUser($username, $password, $firstName = null, $lastName = null) + { + if ($this->getUser($username)) { + $this->collection('user_table')->update( + array('username' => $username), + array('$set' => array( + 'password' => $password, + 'first_name' => $firstName, + 'last_name' => $lastName + )) + ); + } else { + $user = array( + 'username' => $username, + 'password' => $password, + 'first_name' => $firstName, + 'last_name' => $lastName + ); + $this->collection('user_table')->insert($user); + } + + return true; + } + + public function getClientKey($client_id, $subject) + { + $result = $this->collection('jwt_table')->findOne(array( + 'client_id' => $client_id, + 'subject' => $subject + )); + + return is_null($result) ? false : $result['key']; + } + + public function getClientScope($client_id) + { + if (!$clientDetails = $this->getClientDetails($client_id)) { + return false; + } + + if (isset($clientDetails['scope'])) { + return $clientDetails['scope']; + } + + return null; + } + + public function getJti($client_id, $subject, $audience, $expiration, $jti) + { + //TODO: Needs mongodb implementation. + throw new \Exception('getJti() for the MongoDB driver is currently unimplemented.'); + } + + public function setJti($client_id, $subject, $audience, $expiration, $jti) + { + //TODO: Needs mongodb implementation. + throw new \Exception('setJti() for the MongoDB driver is currently unimplemented.'); + } +} diff --git a/library/oauth2/src/OAuth2/Storage/Pdo.php b/library/oauth2/src/OAuth2/Storage/Pdo.php new file mode 100644 index 000000000..ae5107e29 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/Pdo.php @@ -0,0 +1,553 @@ +<?php + +namespace OAuth2\Storage; + +use OAuth2\OpenID\Storage\UserClaimsInterface; +use OAuth2\OpenID\Storage\AuthorizationCodeInterface as OpenIDAuthorizationCodeInterface; + +/** + * Simple PDO storage for all storage types + * + * NOTE: This class is meant to get users started + * quickly. If your application requires further + * customization, extend this class or create your own. + * + * NOTE: Passwords are stored in plaintext, which is never + * a good idea. Be sure to override this for your application + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +class Pdo implements + AuthorizationCodeInterface, + AccessTokenInterface, + ClientCredentialsInterface, + UserCredentialsInterface, + RefreshTokenInterface, + JwtBearerInterface, + ScopeInterface, + PublicKeyInterface, + UserClaimsInterface, + OpenIDAuthorizationCodeInterface +{ + protected $db; + protected $config; + + public function __construct($connection, $config = array()) + { + if (!$connection instanceof \PDO) { + if (is_string($connection)) { + $connection = array('dsn' => $connection); + } + if (!is_array($connection)) { + throw new \InvalidArgumentException('First argument to OAuth2\Storage\Pdo must be an instance of PDO, a DSN string, or a configuration array'); + } + if (!isset($connection['dsn'])) { + throw new \InvalidArgumentException('configuration array must contain "dsn"'); + } + // merge optional parameters + $connection = array_merge(array( + 'username' => null, + 'password' => null, + 'options' => array(), + ), $connection); + $connection = new \PDO($connection['dsn'], $connection['username'], $connection['password'], $connection['options']); + } + $this->db = $connection; + + // debugging + $connection->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION); + + $this->config = array_merge(array( + 'client_table' => 'oauth_clients', + 'access_token_table' => 'oauth_access_tokens', + 'refresh_token_table' => 'oauth_refresh_tokens', + 'code_table' => 'oauth_authorization_codes', + 'user_table' => 'oauth_users', + 'jwt_table' => 'oauth_jwt', + 'jti_table' => 'oauth_jti', + 'scope_table' => 'oauth_scopes', + 'public_key_table' => 'oauth_public_keys', + ), $config); + } + + /* OAuth2\Storage\ClientCredentialsInterface */ + public function checkClientCredentials($client_id, $client_secret = null) + { + $stmt = $this->db->prepare(sprintf('SELECT * from %s where client_id = :client_id', $this->config['client_table'])); + $stmt->execute(compact('client_id')); + $result = $stmt->fetch(\PDO::FETCH_ASSOC); + + // make this extensible + return $result && $result['client_secret'] == $client_secret; + } + + public function isPublicClient($client_id) + { + $stmt = $this->db->prepare(sprintf('SELECT * from %s where client_id = :client_id', $this->config['client_table'])); + $stmt->execute(compact('client_id')); + + if (!$result = $stmt->fetch(\PDO::FETCH_ASSOC)) { + return false; + } + + return empty($result['client_secret']); + } + + /* OAuth2\Storage\ClientInterface */ + public function getClientDetails($client_id) + { + $stmt = $this->db->prepare(sprintf('SELECT * from %s where client_id = :client_id', $this->config['client_table'])); + $stmt->execute(compact('client_id')); + + return $stmt->fetch(\PDO::FETCH_ASSOC); + } + + public function setClientDetails($client_id, $client_secret = null, $redirect_uri = null, $grant_types = null, $scope = null, $user_id = null) + { + // if it exists, update it. + if ($this->getClientDetails($client_id)) { + $stmt = $this->db->prepare($sql = sprintf('UPDATE %s SET client_secret=:client_secret, redirect_uri=:redirect_uri, grant_types=:grant_types, scope=:scope, user_id=:user_id where client_id=:client_id', $this->config['client_table'])); + } else { + $stmt = $this->db->prepare(sprintf('INSERT INTO %s (client_id, client_secret, redirect_uri, grant_types, scope, user_id) VALUES (:client_id, :client_secret, :redirect_uri, :grant_types, :scope, :user_id)', $this->config['client_table'])); + } + + return $stmt->execute(compact('client_id', 'client_secret', 'redirect_uri', 'grant_types', 'scope', 'user_id')); + } + + public function checkRestrictedGrantType($client_id, $grant_type) + { + $details = $this->getClientDetails($client_id); + if (isset($details['grant_types'])) { + $grant_types = explode(' ', $details['grant_types']); + + return in_array($grant_type, (array) $grant_types); + } + + // if grant_types are not defined, then none are restricted + return true; + } + + /* OAuth2\Storage\AccessTokenInterface */ + public function getAccessToken($access_token) + { + $stmt = $this->db->prepare(sprintf('SELECT * from %s where access_token = :access_token', $this->config['access_token_table'])); + + $token = $stmt->execute(compact('access_token')); + if ($token = $stmt->fetch(\PDO::FETCH_ASSOC)) { + // convert date string back to timestamp + $token['expires'] = strtotime($token['expires']); + } + + return $token; + } + + public function setAccessToken($access_token, $client_id, $user_id, $expires, $scope = null) + { + // convert expires to datestring + $expires = date('Y-m-d H:i:s', $expires); + + // if it exists, update it. + if ($this->getAccessToken($access_token)) { + $stmt = $this->db->prepare(sprintf('UPDATE %s SET client_id=:client_id, expires=:expires, user_id=:user_id, scope=:scope where access_token=:access_token', $this->config['access_token_table'])); + } else { + $stmt = $this->db->prepare(sprintf('INSERT INTO %s (access_token, client_id, expires, user_id, scope) VALUES (:access_token, :client_id, :expires, :user_id, :scope)', $this->config['access_token_table'])); + } + + return $stmt->execute(compact('access_token', 'client_id', 'user_id', 'expires', 'scope')); + } + + public function unsetAccessToken($access_token) + { + $stmt = $this->db->prepare(sprintf('DELETE FROM %s WHERE access_token = :access_token', $this->config['access_token_table'])); + + $stmt->execute(compact('access_token')); + + return $stmt->rowCount() > 0; + } + + /* OAuth2\Storage\AuthorizationCodeInterface */ + public function getAuthorizationCode($code) + { + $stmt = $this->db->prepare(sprintf('SELECT * from %s where authorization_code = :code', $this->config['code_table'])); + $stmt->execute(compact('code')); + + if ($code = $stmt->fetch(\PDO::FETCH_ASSOC)) { + // convert date string back to timestamp + $code['expires'] = strtotime($code['expires']); + } + + return $code; + } + + public function setAuthorizationCode($code, $client_id, $user_id, $redirect_uri, $expires, $scope = null, $id_token = null) + { + if (func_num_args() > 6) { + // we are calling with an id token + return call_user_func_array(array($this, 'setAuthorizationCodeWithIdToken'), func_get_args()); + } + + // convert expires to datestring + $expires = date('Y-m-d H:i:s', $expires); + + // if it exists, update it. + if ($this->getAuthorizationCode($code)) { + $stmt = $this->db->prepare($sql = sprintf('UPDATE %s SET client_id=:client_id, user_id=:user_id, redirect_uri=:redirect_uri, expires=:expires, scope=:scope where authorization_code=:code', $this->config['code_table'])); + } else { + $stmt = $this->db->prepare(sprintf('INSERT INTO %s (authorization_code, client_id, user_id, redirect_uri, expires, scope) VALUES (:code, :client_id, :user_id, :redirect_uri, :expires, :scope)', $this->config['code_table'])); + } + + return $stmt->execute(compact('code', 'client_id', 'user_id', 'redirect_uri', 'expires', 'scope')); + } + + private function setAuthorizationCodeWithIdToken($code, $client_id, $user_id, $redirect_uri, $expires, $scope = null, $id_token = null) + { + // convert expires to datestring + $expires = date('Y-m-d H:i:s', $expires); + + // if it exists, update it. + if ($this->getAuthorizationCode($code)) { + $stmt = $this->db->prepare($sql = sprintf('UPDATE %s SET client_id=:client_id, user_id=:user_id, redirect_uri=:redirect_uri, expires=:expires, scope=:scope, id_token =:id_token where authorization_code=:code', $this->config['code_table'])); + } else { + $stmt = $this->db->prepare(sprintf('INSERT INTO %s (authorization_code, client_id, user_id, redirect_uri, expires, scope, id_token) VALUES (:code, :client_id, :user_id, :redirect_uri, :expires, :scope, :id_token)', $this->config['code_table'])); + } + + return $stmt->execute(compact('code', 'client_id', 'user_id', 'redirect_uri', 'expires', 'scope', 'id_token')); + } + + public function expireAuthorizationCode($code) + { + $stmt = $this->db->prepare(sprintf('DELETE FROM %s WHERE authorization_code = :code', $this->config['code_table'])); + + return $stmt->execute(compact('code')); + } + + /* OAuth2\Storage\UserCredentialsInterface */ + public function checkUserCredentials($username, $password) + { + if ($user = $this->getUser($username)) { + return $this->checkPassword($user, $password); + } + + return false; + } + + public function getUserDetails($username) + { + return $this->getUser($username); + } + + /* UserClaimsInterface */ + public function getUserClaims($user_id, $claims) + { + if (!$userDetails = $this->getUserDetails($user_id)) { + return false; + } + + $claims = explode(' ', trim($claims)); + $userClaims = array(); + + // for each requested claim, if the user has the claim, set it in the response + $validClaims = explode(' ', self::VALID_CLAIMS); + foreach ($validClaims as $validClaim) { + if (in_array($validClaim, $claims)) { + if ($validClaim == 'address') { + // address is an object with subfields + $userClaims['address'] = $this->getUserClaim($validClaim, $userDetails['address'] ?: $userDetails); + } else { + $userClaims = array_merge($userClaims, $this->getUserClaim($validClaim, $userDetails)); + } + } + } + + return $userClaims; + } + + protected function getUserClaim($claim, $userDetails) + { + $userClaims = array(); + $claimValuesString = constant(sprintf('self::%s_CLAIM_VALUES', strtoupper($claim))); + $claimValues = explode(' ', $claimValuesString); + + foreach ($claimValues as $value) { + $userClaims[$value] = isset($userDetails[$value]) ? $userDetails[$value] : null; + } + + return $userClaims; + } + + /* OAuth2\Storage\RefreshTokenInterface */ + public function getRefreshToken($refresh_token) + { + $stmt = $this->db->prepare(sprintf('SELECT * FROM %s WHERE refresh_token = :refresh_token', $this->config['refresh_token_table'])); + + $token = $stmt->execute(compact('refresh_token')); + if ($token = $stmt->fetch(\PDO::FETCH_ASSOC)) { + // convert expires to epoch time + $token['expires'] = strtotime($token['expires']); + } + + return $token; + } + + public function setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope = null) + { + // convert expires to datestring + $expires = date('Y-m-d H:i:s', $expires); + + $stmt = $this->db->prepare(sprintf('INSERT INTO %s (refresh_token, client_id, user_id, expires, scope) VALUES (:refresh_token, :client_id, :user_id, :expires, :scope)', $this->config['refresh_token_table'])); + + return $stmt->execute(compact('refresh_token', 'client_id', 'user_id', 'expires', 'scope')); + } + + public function unsetRefreshToken($refresh_token) + { + $stmt = $this->db->prepare(sprintf('DELETE FROM %s WHERE refresh_token = :refresh_token', $this->config['refresh_token_table'])); + + $stmt->execute(compact('refresh_token')); + + return $stmt->rowCount() > 0; + } + + // plaintext passwords are bad! Override this for your application + protected function checkPassword($user, $password) + { + return $user['password'] == $this->hashPassword($password); + } + + // use a secure hashing algorithm when storing passwords. Override this for your application + protected function hashPassword($password) + { + return sha1($password); + } + + public function getUser($username) + { + $stmt = $this->db->prepare($sql = sprintf('SELECT * from %s where username=:username', $this->config['user_table'])); + $stmt->execute(array('username' => $username)); + + if (!$userInfo = $stmt->fetch(\PDO::FETCH_ASSOC)) { + return false; + } + + // the default behavior is to use "username" as the user_id + return array_merge(array( + 'user_id' => $username + ), $userInfo); + } + + public function setUser($username, $password, $firstName = null, $lastName = null) + { + // do not store in plaintext + $password = $this->hashPassword($password); + + // if it exists, update it. + if ($this->getUser($username)) { + $stmt = $this->db->prepare($sql = sprintf('UPDATE %s SET password=:password, first_name=:firstName, last_name=:lastName where username=:username', $this->config['user_table'])); + } else { + $stmt = $this->db->prepare(sprintf('INSERT INTO %s (username, password, first_name, last_name) VALUES (:username, :password, :firstName, :lastName)', $this->config['user_table'])); + } + + return $stmt->execute(compact('username', 'password', 'firstName', 'lastName')); + } + + /* ScopeInterface */ + public function scopeExists($scope) + { + $scope = explode(' ', $scope); + $whereIn = implode(',', array_fill(0, count($scope), '?')); + $stmt = $this->db->prepare(sprintf('SELECT count(scope) as count FROM %s WHERE scope IN (%s)', $this->config['scope_table'], $whereIn)); + $stmt->execute($scope); + + if ($result = $stmt->fetch(\PDO::FETCH_ASSOC)) { + return $result['count'] == count($scope); + } + + return false; + } + + public function getDefaultScope($client_id = null) + { + $stmt = $this->db->prepare(sprintf('SELECT scope FROM %s WHERE is_default=:is_default', $this->config['scope_table'])); + $stmt->execute(array('is_default' => true)); + + if ($result = $stmt->fetchAll(\PDO::FETCH_ASSOC)) { + $defaultScope = array_map(function ($row) { + return $row['scope']; + }, $result); + + return implode(' ', $defaultScope); + } + + return null; + } + + /* JWTBearerInterface */ + public function getClientKey($client_id, $subject) + { + $stmt = $this->db->prepare($sql = sprintf('SELECT public_key from %s where client_id=:client_id AND subject=:subject', $this->config['jwt_table'])); + + $stmt->execute(array('client_id' => $client_id, 'subject' => $subject)); + + return $stmt->fetchColumn(); + } + + public function getClientScope($client_id) + { + if (!$clientDetails = $this->getClientDetails($client_id)) { + return false; + } + + if (isset($clientDetails['scope'])) { + return $clientDetails['scope']; + } + + return null; + } + + public function getJti($client_id, $subject, $audience, $expires, $jti) + { + $stmt = $this->db->prepare($sql = sprintf('SELECT * FROM %s WHERE issuer=:client_id AND subject=:subject AND audience=:audience AND expires=:expires AND jti=:jti', $this->config['jti_table'])); + + $stmt->execute(compact('client_id', 'subject', 'audience', 'expires', 'jti')); + + if ($result = $stmt->fetch(\PDO::FETCH_ASSOC)) { + return array( + 'issuer' => $result['issuer'], + 'subject' => $result['subject'], + 'audience' => $result['audience'], + 'expires' => $result['expires'], + 'jti' => $result['jti'], + ); + } + + return null; + } + + public function setJti($client_id, $subject, $audience, $expires, $jti) + { + $stmt = $this->db->prepare(sprintf('INSERT INTO %s (issuer, subject, audience, expires, jti) VALUES (:client_id, :subject, :audience, :expires, :jti)', $this->config['jti_table'])); + + return $stmt->execute(compact('client_id', 'subject', 'audience', 'expires', 'jti')); + } + + /* PublicKeyInterface */ + public function getPublicKey($client_id = null) + { + $stmt = $this->db->prepare($sql = sprintf('SELECT public_key FROM %s WHERE client_id=:client_id OR client_id IS NULL ORDER BY client_id IS NOT NULL DESC', $this->config['public_key_table'])); + + $stmt->execute(compact('client_id')); + if ($result = $stmt->fetch(\PDO::FETCH_ASSOC)) { + return $result['public_key']; + } + } + + public function getPrivateKey($client_id = null) + { + $stmt = $this->db->prepare($sql = sprintf('SELECT private_key FROM %s WHERE client_id=:client_id OR client_id IS NULL ORDER BY client_id IS NOT NULL DESC', $this->config['public_key_table'])); + + $stmt->execute(compact('client_id')); + if ($result = $stmt->fetch(\PDO::FETCH_ASSOC)) { + return $result['private_key']; + } + } + + public function getEncryptionAlgorithm($client_id = null) + { + $stmt = $this->db->prepare($sql = sprintf('SELECT encryption_algorithm FROM %s WHERE client_id=:client_id OR client_id IS NULL ORDER BY client_id IS NOT NULL DESC', $this->config['public_key_table'])); + + $stmt->execute(compact('client_id')); + if ($result = $stmt->fetch(\PDO::FETCH_ASSOC)) { + return $result['encryption_algorithm']; + } + + return 'RS256'; + } + + /** + * DDL to create OAuth2 database and tables for PDO storage + * + * @see https://github.com/dsquier/oauth2-server-php-mysql + */ + public function getBuildSql($dbName = 'oauth2_server_php') + { + $sql = " + CREATE TABLE {$this->config['client_table']} ( + client_id VARCHAR(80) NOT NULL, + client_secret VARCHAR(80), + redirect_uri VARCHAR(2000), + grant_types VARCHAR(80), + scope VARCHAR(4000), + user_id VARCHAR(80), + PRIMARY KEY (client_id) + ); + + CREATE TABLE {$this->config['access_token_table']} ( + access_token VARCHAR(40) NOT NULL, + client_id VARCHAR(80) NOT NULL, + user_id VARCHAR(80), + expires TIMESTAMP NOT NULL, + scope VARCHAR(4000), + PRIMARY KEY (access_token) + ); + + CREATE TABLE {$this->config['code_table']} ( + authorization_code VARCHAR(40) NOT NULL, + client_id VARCHAR(80) NOT NULL, + user_id VARCHAR(80), + redirect_uri VARCHAR(2000), + expires TIMESTAMP NOT NULL, + scope VARCHAR(4000), + id_token VARCHAR(1000), + PRIMARY KEY (authorization_code) + ); + + CREATE TABLE {$this->config['refresh_token_table']} ( + refresh_token VARCHAR(40) NOT NULL, + client_id VARCHAR(80) NOT NULL, + user_id VARCHAR(80), + expires TIMESTAMP NOT NULL, + scope VARCHAR(4000), + PRIMARY KEY (refresh_token) + ); + + CREATE TABLE {$this->config['user_table']} ( + username VARCHAR(80), + password VARCHAR(80), + first_name VARCHAR(80), + last_name VARCHAR(80), + email VARCHAR(80), + email_verified BOOLEAN, + scope VARCHAR(4000) + ); + + CREATE TABLE {$this->config['scope_table']} ( + scope VARCHAR(80) NOT NULL, + is_default BOOLEAN, + PRIMARY KEY (scope) + ); + + CREATE TABLE {$this->config['jwt_table']} ( + client_id VARCHAR(80) NOT NULL, + subject VARCHAR(80), + public_key VARCHAR(2000) NOT NULL + ); + + CREATE TABLE {$this->config['jti_table']} ( + issuer VARCHAR(80) NOT NULL, + subject VARCHAR(80), + audience VARCHAR(80), + expires TIMESTAMP NOT NULL, + jti VARCHAR(2000) NOT NULL + ); + + CREATE TABLE {$this->config['public_key_table']} ( + client_id VARCHAR(80), + public_key VARCHAR(2000), + private_key VARCHAR(2000), + encryption_algorithm VARCHAR(100) DEFAULT 'RS256' + ) +"; + + return $sql; + } +} diff --git a/library/oauth2/src/OAuth2/Storage/PublicKeyInterface.php b/library/oauth2/src/OAuth2/Storage/PublicKeyInterface.php new file mode 100644 index 000000000..108418d3a --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/PublicKeyInterface.php @@ -0,0 +1,16 @@ +<?php + +namespace OAuth2\Storage; + +/** + * Implement this interface to specify where the OAuth2 Server + * should get public/private key information + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface PublicKeyInterface +{ + public function getPublicKey($client_id = null); + public function getPrivateKey($client_id = null); + public function getEncryptionAlgorithm($client_id = null); +} diff --git a/library/oauth2/src/OAuth2/Storage/Redis.php b/library/oauth2/src/OAuth2/Storage/Redis.php new file mode 100644 index 000000000..e6294e22d --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/Redis.php @@ -0,0 +1,321 @@ +<?php + +namespace OAuth2\Storage; + +use OAuth2\OpenID\Storage\AuthorizationCodeInterface as OpenIDAuthorizationCodeInterface; + +/** + * redis storage for all storage types + * + * To use, install "predis/predis" via composer + * + * Register client: + * <code> + * $storage = new OAuth2\Storage\Redis($redis); + * $storage->setClientDetails($client_id, $client_secret, $redirect_uri); + * </code> + */ +class Redis implements AuthorizationCodeInterface, + AccessTokenInterface, + ClientCredentialsInterface, + UserCredentialsInterface, + RefreshTokenInterface, + JwtBearerInterface, + ScopeInterface, + OpenIDAuthorizationCodeInterface +{ + + private $cache; + + /* The redis client */ + protected $redis; + + /* Configuration array */ + protected $config; + + /** + * Redis Storage! + * + * @param \Predis\Client $redis + * @param array $config + */ + public function __construct($redis, $config=array()) + { + $this->redis = $redis; + $this->config = array_merge(array( + 'client_key' => 'oauth_clients:', + 'access_token_key' => 'oauth_access_tokens:', + 'refresh_token_key' => 'oauth_refresh_tokens:', + 'code_key' => 'oauth_authorization_codes:', + 'user_key' => 'oauth_users:', + 'jwt_key' => 'oauth_jwt:', + 'scope_key' => 'oauth_scopes:', + ), $config); + } + + protected function getValue($key) + { + if ( isset($this->cache[$key]) ) { + return $this->cache[$key]; + } + $value = $this->redis->get($key); + if ( isset($value) ) { + return json_decode($value, true); + } else { + return false; + } + } + + protected function setValue($key, $value, $expire=0) + { + $this->cache[$key] = $value; + $str = json_encode($value); + if ($expire > 0) { + $seconds = $expire - time(); + $ret = $this->redis->setex($key, $seconds, $str); + } else { + $ret = $this->redis->set($key, $str); + } + + // check that the key was set properly + // if this fails, an exception will usually thrown, so this step isn't strictly necessary + return is_bool($ret) ? $ret : $ret->getPayload() == 'OK'; + } + + protected function expireValue($key) + { + unset($this->cache[$key]); + + return $this->redis->del($key); + } + + /* AuthorizationCodeInterface */ + public function getAuthorizationCode($code) + { + return $this->getValue($this->config['code_key'] . $code); + } + + public function setAuthorizationCode($authorization_code, $client_id, $user_id, $redirect_uri, $expires, $scope = null, $id_token = null) + { + return $this->setValue( + $this->config['code_key'] . $authorization_code, + compact('authorization_code', 'client_id', 'user_id', 'redirect_uri', 'expires', 'scope', 'id_token'), + $expires + ); + } + + public function expireAuthorizationCode($code) + { + $key = $this->config['code_key'] . $code; + unset($this->cache[$key]); + + return $this->expireValue($key); + } + + /* UserCredentialsInterface */ + public function checkUserCredentials($username, $password) + { + $user = $this->getUserDetails($username); + + return $user && $user['password'] === $password; + } + + public function getUserDetails($username) + { + return $this->getUser($username); + } + + public function getUser($username) + { + if (!$userInfo = $this->getValue($this->config['user_key'] . $username)) { + return false; + } + + // the default behavior is to use "username" as the user_id + return array_merge(array( + 'user_id' => $username, + ), $userInfo); + } + + public function setUser($username, $password, $first_name = null, $last_name = null) + { + return $this->setValue( + $this->config['user_key'] . $username, + compact('username', 'password', 'first_name', 'last_name') + ); + } + + /* ClientCredentialsInterface */ + public function checkClientCredentials($client_id, $client_secret = null) + { + if (!$client = $this->getClientDetails($client_id)) { + return false; + } + + return isset($client['client_secret']) + && $client['client_secret'] == $client_secret; + } + + public function isPublicClient($client_id) + { + if (!$client = $this->getClientDetails($client_id)) { + return false; + } + + return empty($client['client_secret']); + } + + /* ClientInterface */ + public function getClientDetails($client_id) + { + return $this->getValue($this->config['client_key'] . $client_id); + } + + public function setClientDetails($client_id, $client_secret = null, $redirect_uri = null, $grant_types = null, $scope = null, $user_id = null) + { + return $this->setValue( + $this->config['client_key'] . $client_id, + compact('client_id', 'client_secret', 'redirect_uri', 'grant_types', 'scope', 'user_id') + ); + } + + public function checkRestrictedGrantType($client_id, $grant_type) + { + $details = $this->getClientDetails($client_id); + if (isset($details['grant_types'])) { + $grant_types = explode(' ', $details['grant_types']); + + return in_array($grant_type, (array) $grant_types); + } + + // if grant_types are not defined, then none are restricted + return true; + } + + /* RefreshTokenInterface */ + public function getRefreshToken($refresh_token) + { + return $this->getValue($this->config['refresh_token_key'] . $refresh_token); + } + + public function setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope = null) + { + return $this->setValue( + $this->config['refresh_token_key'] . $refresh_token, + compact('refresh_token', 'client_id', 'user_id', 'expires', 'scope'), + $expires + ); + } + + public function unsetRefreshToken($refresh_token) + { + $result = $this->expireValue($this->config['refresh_token_key'] . $refresh_token); + + return $result > 0; + } + + /* AccessTokenInterface */ + public function getAccessToken($access_token) + { + return $this->getValue($this->config['access_token_key'].$access_token); + } + + public function setAccessToken($access_token, $client_id, $user_id, $expires, $scope = null) + { + return $this->setValue( + $this->config['access_token_key'].$access_token, + compact('access_token', 'client_id', 'user_id', 'expires', 'scope'), + $expires + ); + } + + public function unsetAccessToken($access_token) + { + $result = $this->expireValue($this->config['access_token_key'] . $access_token); + + return $result > 0; + } + + /* ScopeInterface */ + public function scopeExists($scope) + { + $scope = explode(' ', $scope); + + $result = $this->getValue($this->config['scope_key'].'supported:global'); + + $supportedScope = explode(' ', (string) $result); + + return (count(array_diff($scope, $supportedScope)) == 0); + } + + public function getDefaultScope($client_id = null) + { + if (is_null($client_id) || !$result = $this->getValue($this->config['scope_key'].'default:'.$client_id)) { + $result = $this->getValue($this->config['scope_key'].'default:global'); + } + + return $result; + } + + public function setScope($scope, $client_id = null, $type = 'supported') + { + if (!in_array($type, array('default', 'supported'))) { + throw new \InvalidArgumentException('"$type" must be one of "default", "supported"'); + } + + if (is_null($client_id)) { + $key = $this->config['scope_key'].$type.':global'; + } else { + $key = $this->config['scope_key'].$type.':'.$client_id; + } + + return $this->setValue($key, $scope); + } + + /*JWTBearerInterface */ + public function getClientKey($client_id, $subject) + { + if (!$jwt = $this->getValue($this->config['jwt_key'] . $client_id)) { + return false; + } + + if (isset($jwt['subject']) && $jwt['subject'] == $subject) { + return $jwt['key']; + } + + return null; + } + + public function setClientKey($client_id, $key, $subject = null) + { + return $this->setValue($this->config['jwt_key'] . $client_id, array( + 'key' => $key, + 'subject' => $subject + )); + } + + public function getClientScope($client_id) + { + if (!$clientDetails = $this->getClientDetails($client_id)) { + return false; + } + + if (isset($clientDetails['scope'])) { + return $clientDetails['scope']; + } + + return null; + } + + public function getJti($client_id, $subject, $audience, $expiration, $jti) + { + //TODO: Needs redis implementation. + throw new \Exception('getJti() for the Redis driver is currently unimplemented.'); + } + + public function setJti($client_id, $subject, $audience, $expiration, $jti) + { + //TODO: Needs redis implementation. + throw new \Exception('setJti() for the Redis driver is currently unimplemented.'); + } +} diff --git a/library/oauth2/src/OAuth2/Storage/RefreshTokenInterface.php b/library/oauth2/src/OAuth2/Storage/RefreshTokenInterface.php new file mode 100644 index 000000000..0273f2125 --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/RefreshTokenInterface.php @@ -0,0 +1,82 @@ +<?php + +namespace OAuth2\Storage; + +/** + * Implement this interface to specify where the OAuth2 Server + * should get/save refresh tokens for the "Refresh Token" + * grant type + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface RefreshTokenInterface +{ + /** + * Grant refresh access tokens. + * + * Retrieve the stored data for the given refresh token. + * + * Required for OAuth2::GRANT_TYPE_REFRESH_TOKEN. + * + * @param $refresh_token + * Refresh token to be check with. + * + * @return + * An associative array as below, and NULL if the refresh_token is + * invalid: + * - refresh_token: Refresh token identifier. + * - client_id: Client identifier. + * - user_id: User identifier. + * - expires: Expiration unix timestamp, or 0 if the token doesn't expire. + * - scope: (optional) Scope values in space-separated string. + * + * @see http://tools.ietf.org/html/rfc6749#section-6 + * + * @ingroup oauth2_section_6 + */ + public function getRefreshToken($refresh_token); + + /** + * Take the provided refresh token values and store them somewhere. + * + * This function should be the storage counterpart to getRefreshToken(). + * + * If storage fails for some reason, we're not currently checking for + * any sort of success/failure, so you should bail out of the script + * and provide a descriptive fail message. + * + * Required for OAuth2::GRANT_TYPE_REFRESH_TOKEN. + * + * @param $refresh_token + * Refresh token to be stored. + * @param $client_id + * Client identifier to be stored. + * @param $user_id + * User identifier to be stored. + * @param $expires + * Expiration timestamp to be stored. 0 if the token doesn't expire. + * @param $scope + * (optional) Scopes to be stored in space-separated string. + * + * @ingroup oauth2_section_6 + */ + public function setRefreshToken($refresh_token, $client_id, $user_id, $expires, $scope = null); + + /** + * Expire a used refresh token. + * + * This is not explicitly required in the spec, but is almost implied. + * After granting a new refresh token, the old one is no longer useful and + * so should be forcibly expired in the data store so it can't be used again. + * + * If storage fails for some reason, we're not currently checking for + * any sort of success/failure, so you should bail out of the script + * and provide a descriptive fail message. + * + * @param $refresh_token + * Refresh token to be expirse. + * + * @ingroup oauth2_section_6 + */ + public function unsetRefreshToken($refresh_token); +} diff --git a/library/oauth2/src/OAuth2/Storage/ScopeInterface.php b/library/oauth2/src/OAuth2/Storage/ScopeInterface.php new file mode 100644 index 000000000..a8292269b --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/ScopeInterface.php @@ -0,0 +1,46 @@ +<?php + +namespace OAuth2\Storage; + +/** + * Implement this interface to specify where the OAuth2 Server + * should retrieve data involving the relevent scopes associated + * with this implementation. + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface ScopeInterface +{ + /** + * Check if the provided scope exists. + * + * @param $scope + * A space-separated string of scopes. + * + * @return + * TRUE if it exists, FALSE otherwise. + */ + public function scopeExists($scope); + + /** + * The default scope to use in the event the client + * does not request one. By returning "false", a + * request_error is returned by the server to force a + * scope request by the client. By returning "null", + * opt out of requiring scopes + * + * @param $client_id + * An optional client id that can be used to return customized default scopes. + * + * @return + * string representation of default scope, null if + * scopes are not defined, or false to force scope + * request by the client + * + * ex: + * 'default' + * ex: + * null + */ + public function getDefaultScope($client_id = null); +} diff --git a/library/oauth2/src/OAuth2/Storage/UserCredentialsInterface.php b/library/oauth2/src/OAuth2/Storage/UserCredentialsInterface.php new file mode 100644 index 000000000..6e0fd7bad --- /dev/null +++ b/library/oauth2/src/OAuth2/Storage/UserCredentialsInterface.php @@ -0,0 +1,52 @@ +<?php + +namespace OAuth2\Storage; + +/** + * Implement this interface to specify where the OAuth2 Server + * should retrieve user credentials for the + * "Resource Owner Password Credentials" grant type + * + * @author Brent Shaffer <bshafs at gmail dot com> + */ +interface UserCredentialsInterface +{ + /** + * Grant access tokens for basic user credentials. + * + * Check the supplied username and password for validity. + * + * You can also use the $client_id param to do any checks required based + * on a client, if you need that. + * + * Required for OAuth2::GRANT_TYPE_USER_CREDENTIALS. + * + * @param $username + * Username to be check with. + * @param $password + * Password to be check with. + * + * @return + * TRUE if the username and password are valid, and FALSE if it isn't. + * Moreover, if the username and password are valid, and you want to + * + * @see http://tools.ietf.org/html/rfc6749#section-4.3 + * + * @ingroup oauth2_section_4 + */ + public function checkUserCredentials($username, $password); + + /** + * @return + * ARRAY the associated "user_id" and optional "scope" values + * This function MUST return FALSE if the requested user does not exist or is + * invalid. "scope" is a space-separated list of restricted scopes. + * @code + * return array( + * "user_id" => USER_ID, // REQUIRED user_id to be stored with the authorization code or access token + * "scope" => SCOPE // OPTIONAL space-separated list of restricted scopes + * ); + * @endcode + */ + public function getUserDetails($username); +} diff --git a/library/oauth2/src/OAuth2/TokenType/Bearer.php b/library/oauth2/src/OAuth2/TokenType/Bearer.php new file mode 100644 index 000000000..8ac8596ac --- /dev/null +++ b/library/oauth2/src/OAuth2/TokenType/Bearer.php @@ -0,0 +1,130 @@ +<?php + +namespace OAuth2\TokenType; + +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** +* +*/ +class Bearer implements TokenTypeInterface +{ + private $config; + + public function __construct(array $config = array()) + { + $this->config = array_merge(array( + 'token_param_name' => 'access_token', + 'token_bearer_header_name' => 'Bearer', + ), $config); + } + + public function getTokenType() + { + return 'Bearer'; + } + + /** + * Check if the request has supplied token + * + * @see https://github.com/bshaffer/oauth2-server-php/issues/349#issuecomment-37993588 + */ + public function requestHasToken(RequestInterface $request) + { + $headers = $request->headers('AUTHORIZATION'); + + // check the header, then the querystring, then the request body + return !empty($headers) || (bool) ($request->request($this->config['token_param_name'])) || (bool) ($request->query($this->config['token_param_name'])); + } + + /** + * This is a convenience function that can be used to get the token, which can then + * be passed to getAccessTokenData(). The constraints specified by the draft are + * attempted to be adheared to in this method. + * + * As per the Bearer spec (draft 8, section 2) - there are three ways for a client + * to specify the bearer token, in order of preference: Authorization Header, + * POST and GET. + * + * NB: Resource servers MUST accept tokens via the Authorization scheme + * (http://tools.ietf.org/html/rfc6750#section-2). + * + * @todo Should we enforce TLS/SSL in this function? + * + * @see http://tools.ietf.org/html/rfc6750#section-2.1 + * @see http://tools.ietf.org/html/rfc6750#section-2.2 + * @see http://tools.ietf.org/html/rfc6750#section-2.3 + * + * Old Android version bug (at least with version 2.2) + * @see http://code.google.com/p/android/issues/detail?id=6684 + * + */ + public function getAccessTokenParameter(RequestInterface $request, ResponseInterface $response) + { + $headers = $request->headers('AUTHORIZATION'); + + /** + * Ensure more than one method is not used for including an + * access token + * + * @see http://tools.ietf.org/html/rfc6750#section-3.1 + */ + $methodsUsed = !empty($headers) + (bool) ($request->query($this->config['token_param_name'])) + (bool) ($request->request($this->config['token_param_name'])); + if ($methodsUsed > 1) { + $response->setError(400, 'invalid_request', 'Only one method may be used to authenticate at a time (Auth header, GET or POST)'); + + return null; + } + + /** + * If no authentication is provided, set the status code + * to 401 and return no other error information + * + * @see http://tools.ietf.org/html/rfc6750#section-3.1 + */ + if ($methodsUsed == 0) { + $response->setStatusCode(401); + + return null; + } + + // HEADER: Get the access token from the header + if (!empty($headers)) { + if (!preg_match('/' . $this->config['token_bearer_header_name'] . '\s(\S+)/i', $headers, $matches)) { + $response->setError(400, 'invalid_request', 'Malformed auth header'); + + return null; + } + + return $matches[1]; + } + + if ($request->request($this->config['token_param_name'])) { + // // POST: Get the token from POST data + if (!in_array(strtolower($request->server('REQUEST_METHOD')), array('post', 'put'))) { + $response->setError(400, 'invalid_request', 'When putting the token in the body, the method must be POST or PUT', '#section-2.2'); + + return null; + } + + $contentType = $request->server('CONTENT_TYPE'); + if (false !== $pos = strpos($contentType, ';')) { + $contentType = substr($contentType, 0, $pos); + } + + if ($contentType !== null && $contentType != 'application/x-www-form-urlencoded') { + // IETF specifies content-type. NB: Not all webservers populate this _SERVER variable + // @see http://tools.ietf.org/html/rfc6750#section-2.2 + $response->setError(400, 'invalid_request', 'The content type for POST requests must be "application/x-www-form-urlencoded"'); + + return null; + } + + return $request->request($this->config['token_param_name']); + } + + // GET method + return $request->query($this->config['token_param_name']); + } +} diff --git a/library/oauth2/src/OAuth2/TokenType/Mac.php b/library/oauth2/src/OAuth2/TokenType/Mac.php new file mode 100644 index 000000000..fe6a86aa6 --- /dev/null +++ b/library/oauth2/src/OAuth2/TokenType/Mac.php @@ -0,0 +1,22 @@ +<?php + +namespace OAuth2\TokenType; + +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +/** +* This is not yet supported! +*/ +class Mac implements TokenTypeInterface +{ + public function getTokenType() + { + return 'mac'; + } + + public function getAccessTokenParameter(RequestInterface $request, ResponseInterface $response) + { + throw new \LogicException("Not supported"); + } +} diff --git a/library/oauth2/src/OAuth2/TokenType/TokenTypeInterface.php b/library/oauth2/src/OAuth2/TokenType/TokenTypeInterface.php new file mode 100644 index 000000000..ad77d4a25 --- /dev/null +++ b/library/oauth2/src/OAuth2/TokenType/TokenTypeInterface.php @@ -0,0 +1,21 @@ +<?php + +namespace OAuth2\TokenType; + +use OAuth2\RequestInterface; +use OAuth2\ResponseInterface; + +interface TokenTypeInterface +{ + /** + * Token type identification string + * + * ex: "bearer" or "mac" + */ + public function getTokenType(); + + /** + * Retrieves the token string from the request object + */ + public function getAccessTokenParameter(RequestInterface $request, ResponseInterface $response); +} |