mirror of
https://github.com/elyby/oauth2-server.git
synced 2024-11-15 17:56:14 +05:30
292 lines
10 KiB
PHP
292 lines
10 KiB
PHP
<?php
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namespace OAuth2;
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use OAuth2\Util\SecureKey;
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use OAuth2\Storage\SessionInterface;
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use OAuth2\Storage\ClientInterface;
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use OAuth2\Storage\ScopeInterface;
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use OAuth2\Grant\GrantTypeInterface;
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class AuthServer
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{
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/**
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* The delimeter between scopes specified in the scope query string parameter
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*
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* The OAuth 2 specification states it should be a space but that is stupid
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* and everyone excepted Google use a comma instead.
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*
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* @var string
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*/
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protected $scopeDelimeter = ',';
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static protected $expiresIn = 3600;
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protected $responseTypes = array();
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static protected $storages = array();
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static protected $grantTypes = array();
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static protected $request = null;
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/**
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* Exception error codes
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* @var array
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*/
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protected $exceptionCodes = array(
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0 => 'invalid_request',
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1 => 'unauthorized_client',
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2 => 'access_denied',
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3 => 'unsupported_response_type',
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4 => 'invalid_scope',
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5 => 'server_error',
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6 => 'temporarily_unavailable',
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7 => 'unsupported_grant_type',
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8 => 'invalid_client',
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9 => 'invalid_grant'
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);
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/**
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* Exception error messages
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* @var array
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*/
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static protected $exceptionMessages = array(
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'invalid_request' => 'The request is missing a required parameter, includes an invalid parameter value, includes a parameter more than once, or is otherwise malformed. Check the "%s" parameter.',
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'unauthorized_client' => 'The client is not authorized to request an access token using this method.',
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'access_denied' => 'The resource owner or authorization server denied the request.',
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'unsupported_response_type' => 'The authorization server does not support obtaining an access token using this method.',
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'invalid_scope' => 'The requested scope is invalid, unknown, or malformed. Check the "%s" scope.',
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'server_error' => 'The authorization server encountered an unexpected condition which prevented it from fulfilling the request.',
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'temporarily_unavailable' => 'The authorization server is currently unable to handle the request due to a temporary overloading or maintenance of the server.',
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'unsupported_grant_type' => 'The authorization grant type "%s" is not supported by the authorization server',
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'invalid_client' => 'Client authentication failed',
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'invalid_grant' => 'The provided authorization grant is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client. Check the "%s" parameter.',
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'invalid_credentials' => 'The user credentials were incorrect.',
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'invalid_refresh' => 'The refresh token is invalid.',
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);
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public static function getExceptionMessage($error = '')
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{
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return self::$exceptionMessages[$error];
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}
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public function __construct(ClientInterface $client, SessionInterface $session, ScopeInterface $scope)
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{
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self::$storages = array(
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'client' => $client,
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'session' => $session,
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'scope' => $scope
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);
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}
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public function addGrantType(GrantTypeInterface $grantType, $identifier = null)
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{
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if (is_null($identifier)) {
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$identifier = $grantType->getIdentifier();
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}
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self::$grantTypes[$identifier] = $grantType;
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if ( ! is_null($grantType->getResponseType())) {
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$this->responseTypes[] = $grantType->getResponseType();
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}
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}
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public static function hasGrantType($identifier)
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{
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return (array_key_exists($identifier, self::$grantTypes));
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}
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public function getScopeDelimeter()
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{
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return $this->scopeDelimeter;
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}
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public function setScopeDelimeter($scope_delimeter)
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{
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$this->scopeDelimeter = $scope_delimeter;
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}
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public static function getExpiresIn()
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{
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return self::$expiresIn;
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}
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public function setExpiresIn($expiresIn)
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{
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$this->expiresIn = $expiresIn;
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}
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/**
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* Sets the Request Object
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*
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* @param RequestInterface The Request Object
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*/
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public function setRequest(RequestInterface $request)
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{
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$this->request = $request;
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}
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/**
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* Gets the Request object. It will create one from the globals if one is not set.
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*
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* @return RequestInterface
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*/
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public static function getRequest()
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{
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if (self::$request === null) {
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self::$request = Request::buildFromGlobals();
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}
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return self::$request;
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}
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public static function getStorage($obj)
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{
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return self::$storages[$obj];
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}
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/**
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* Check authorise parameters
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*
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* @access public
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* @param array $inputParams Optional array of parsed $_GET keys
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* @return array Authorise request parameters
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*/
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public function checkAuthoriseParams($inputParams = array())
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{
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$authParams = array();
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// Client ID
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$authParams['client_id'] = (isset($inputParams['client_id'])) ?
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$inputParams['client_id'] :
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self::getRequest()->get('client_id');
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if (is_null($authParams['client_id'])) {
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throw new Exception\ClientException(sprintf(self::$exceptionMessages['invalid_request'], 'client_id'), 0);
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}
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// Redirect URI
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$authParams['redirect_uri'] = (isset($inputParams['redirect_uri'])) ?
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$inputParams['redirect_uri'] :
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self::getRequest()->get('redirect_uri');
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if (is_null($authParams['redirect_uri'])) {
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throw new Exception\ClientException(sprintf(self::$exceptionMessages['invalid_request'], 'redirect_uri'), 0);
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}
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// Validate client ID and redirect URI
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$clientDetails = self::getStorage('client')->get($authParams['client_id'], null, $authParams['redirect_uri']);
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if ($clientDetails === false) {
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throw new Exception\ClientException(self::$exceptionMessages['invalid_client'], 8);
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}
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$authParams['client_details'] = $clientDetails;
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// Response type
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$authParams['response_type'] = (isset($inputParams['response_type'])) ?
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$inputParams['response_type'] :
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self::getRequest()->get('response_type');
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if (is_null($authParams['response_type'])) {
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throw new Exception\ClientException(sprintf(self::$exceptionMessages['invalid_request'], 'response_type'), 0);
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}
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// Ensure response type is one that is recognised
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if ( ! in_array($authParams['response_type'], $this->responseTypes)) {
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throw new Exception\ClientException(self::$exceptionMessages['unsupported_response_type'], 3);
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}
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// Get and validate scopes
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$scopes = (isset($inputParams['scope'])) ?
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$inputParams['scope'] :
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self::getRequest()->get('scope', '');
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$scopes = explode($this->scopeDelimeter, $scopes);
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for ($i = 0; $i < count($scopes); $i++) {
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$scopes[$i] = trim($scopes[$i]);
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if ($scopes[$i] === '') unset($scopes[$i]); // Remove any junk scopes
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}
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if (count($scopes) === 0) {
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throw new Exception\ClientException(sprintf(self::$exceptionMessages['invalid_request'], 'scope'), 0);
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}
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$authParams['scopes'] = array();
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foreach ($scopes as $scope) {
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$scopeDetails = self::getStorage('scope')->get($scope);
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if ($scopeDetails === false) {
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throw new Exception\ClientException(sprintf(self::$exceptionMessages['invalid_scope'], $scope), 4);
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}
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$authParams['scopes'][] = $scopeDetails;
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}
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return $authParams;
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}
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/**
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* Parse a new authorise request
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*
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* @param string $type The session owner's type
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* @param string $typeId The session owner's ID
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* @param array $authoriseParams The authorise request $_GET parameters
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* @return string An authorisation code
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*/
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public function newAuthoriseRequest($type, $typeId, $authParams = array())
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{
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// Generate an auth code
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$authCode = SecureKey::make();
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// Remove any old sessions the user might have
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self::getStorage('session')->delete($authParams['client_id'], $type, $typeId);
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// Create a new session
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$sessionId = self::getStorage('session')->create($authParams['client_id'], $authParams['redirect_uri'], $type, $typeId, $authCode);
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// Associate scopes with the new session
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foreach ($authParams['scopes'] as $scope)
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{
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self::getStorage('session')->associateScope($sessionId, $scope['id']);
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}
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return $authCode;
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}
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/**
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* Issue an access token
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*
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* @access public
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* @param array $inputParams Optional array of parsed $_POST keys
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* @return array Authorise request parameters
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*/
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public function issueAccessToken($inputParams = array())
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{
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$authParams['grant_type'] = (isset($inputParams['grant_type'])) ?
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$inputParams['grant_type'] :
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self::getRequest()->post('grant_type');
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if (is_null($authParams['grant_type'])) {
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throw new Exception\ClientException(sprintf(self::$exceptionMessages['invalid_request'], 'grant_type'), 0);
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}
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// Ensure grant type is one that is recognised and is enabled
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if ( ! in_array($authParams['grant_type'], array_keys(self::$grantTypes))) {
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throw new Exception\ClientException(sprintf(self::$exceptionMessages['unsupported_grant_type'], $authParams['grant_type']), 7);
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}
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// Complete the flow
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return $this->getCurrentGrantType($authParams['grant_type'])->completeFlow($inputParams, $authParams);
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}
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protected function getCurrentGrantType($grantType)
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{
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return self::$grantTypes[$grantType];
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}
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}
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