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<?php |
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namespace Ntb\RestAPI; |
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/** |
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* Factory for different kind of rest authenticators. |
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* @author Christian Blank <[email protected]> |
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*/ |
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class AuthFactory extends \SS_Object { |
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/** |
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* Returns a new instance of an authentication mechanism depending on the configured type. |
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* @return IAuth an instance of an authentication mechanism |
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* @throws RestSystemException |
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*/ |
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public static function createAuth() { |
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return \Injector::inst()->get('Authenticator'); |
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} |
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/** |
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* Generates an encrypted random token. |
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* @param \Member $user |
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* @throws \PasswordEncryptor_NotFoundException |
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* @return string |
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*/ |
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public static function generate_token($user) { |
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$generator = new \RandomGenerator(); |
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$tokenString = $generator->randomToken(); |
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$e = \PasswordEncryptor::create_for_algorithm('blowfish'); |
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$salt = $e->salt($tokenString); |
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$token = sha1($e->encrypt($tokenString, $salt)) . substr(md5($user->Created.$user->LastEdited.$user->ID), 7); |
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return $token; |
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} |
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/** |
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* Returns the token from the request. |
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* |
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* Silverstripe doesn't include Authorization header in its requests. We should check it, because we can use the |
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* mechanism in the tests. |
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* @param \SS_HTTPRequest $request |
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* @return String the token |
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* @throws \Exception |
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*/ |
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public static function get_token($request) { |
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// try to get the token from request object |
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$tokenStrFromHeader = $request->getHeader('Authorization'); |
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$tokenStrFromVar = $request->requestVar('access_token'); |
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if (!empty($tokenStrFromHeader)) { |
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// string must have format: type token |
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return explode(' ', $tokenStrFromHeader)[1]; |
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} else if(!empty($tokenStrFromVar)) { |
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// try variables |
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return $tokenStrFromVar; |
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} else if(function_exists('getallheaders')) { |
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// get all headers from apache server |
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$headers = getallheaders(); |
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if(isset($headers['Authorization'])) { |
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return explode(' ', $headers['Authorization'])[1]; |
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} |
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} |
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throw new \Exception("Token can't be read or was not specified"); |
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} |
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} |
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notthatbad /
silverstripe-rest-api
