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<?php |
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/* |
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* This file is part of OAuth 2.0 Laravel. |
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* |
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* (c) Luca Degasperi <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace LucaDegasperi\OAuth2Server\Middleware; |
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use Closure; |
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use League\OAuth2\Server\Exception\InvalidScopeException; |
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use LucaDegasperi\OAuth2Server\Authorizer; |
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/** |
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* This is the oauth middleware class. |
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* |
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* @author Luca Degasperi <[email protected]> |
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*/ |
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class OAuthMiddleware |
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{ |
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/** |
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* The Authorizer instance. |
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* |
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* @var \LucaDegasperi\OAuth2Server\Authorizer |
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*/ |
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protected $authorizer; |
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/** |
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* Whether or not to check the http headers only for an access token. |
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* |
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* @var bool |
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*/ |
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protected $httpHeadersOnly = false; |
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/** |
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* Create a new oauth middleware instance. |
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* |
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* @param \LucaDegasperi\OAuth2Server\Authorizer $authorizer |
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* @param bool $httpHeadersOnly |
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*/ |
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public function __construct(Authorizer $authorizer, $httpHeadersOnly = false) |
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{ |
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$this->authorizer = $authorizer; |
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$this->httpHeadersOnly = $httpHeadersOnly; |
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} |
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/** |
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* Handle an incoming request. |
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* |
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* @param \Illuminate\Http\Request $request |
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* @param \Closure $next |
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* @param string|null $scopesString |
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* |
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* @throws \League\OAuth2\Server\Exception\InvalidScopeException |
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* |
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* @return mixed |
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*/ |
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public function handle($request, Closure $next, $scopesString = null) |
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{ |
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$scopes = []; |
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$scopeCombinations = []; |
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if (!is_null($scopesString)) { |
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// We extract all possible scopes combinations, its required to meet at least one. |
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$scopeCombinations = explode('|', $scopesString); |
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} |
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$this->authorizer->setRequest($request); |
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$this->authorizer->validateAccessToken($this->httpHeadersOnly); |
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$this->validateCombinations($scopeCombinations); |
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return $next($request); |
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} |
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/** |
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* Validate the scopes. |
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* |
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* @param $scopes |
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* |
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* @throws \League\OAuth2\Server\Exception\InvalidScopeException |
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*/ |
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public function validateCombinations($combinations) |
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{ |
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if (!empty($combinations)) { |
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foreach ($combinations as $index => $combination) { |
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$scopes = explode('+', $combination); |
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if($this->validateScopes($scopes)) |
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{ |
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return true; |
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} |
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} |
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throw new InvalidScopeException(implode(',', $combinations)); |
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} |
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} |
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/** |
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* Validate the scopes. |
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* |
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* @param $scopes |
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* |
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* @throws \League\OAuth2\Server\Exception\InvalidScopeException |
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*/ |
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public function validateScopes($scopes) |
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{ |
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if (!empty($scopes) && !$this->authorizer->hasScope($scopes)) { |
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return false; |
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} |
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return true; |
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} |
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} |
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.