| Conditions | 12 | 
| Paths | 31 | 
| Total Lines | 62 | 
| Code Lines | 34 | 
| Lines | 0 | 
| Ratio | 0 % | 
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php  | 
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| 45 | public function authenticate(ServerRequestInterface $request, array $requestData): ClientInterface  | 
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| 46 |     { | 
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| 47 | /**  | 
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| 48 | * require client authentication for confidential clients or for any  | 
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| 49 | * client that was issued client credentials (or with other  | 
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| 50 | * authentication requirements)  | 
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| 51 | */  | 
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| 52 | |||
| 53 | /**  | 
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| 54 | * @var ClientAuthenticationMethodInterface $clientAuthenticationMethod  | 
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| 55 | */  | 
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| 56 | $clientAuthenticationMethodUsedIdentifier = null;  | 
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| 57 | $clientAuthenticationMethodUsed = null;  | 
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| 58 | $authenticated = false;  | 
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| 59 |         foreach ($this->clientAuthenticationMethods as $identifier => $clientAuthenticationMethod) { | 
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| 60 |             if($clientAuthenticationMethod->support($request, $requestData))  { | 
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| 61 |                 if($clientAuthenticationMethodUsedIdentifier) { | 
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| 62 |                     throw new OAuthException('invalid_request', | 
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| 63 | 'The request utilizes more than one mechanism for authenticating the client.',  | 
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| 64 | 'https://tools.ietf.org/html/rfc6749#section-3.2.1');  | 
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| 65 | }  | 
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| 66 | $clientAuthenticationMethodUsedIdentifier = $identifier;  | 
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| 67 | $clientAuthenticationMethodUsed = $clientAuthenticationMethod;  | 
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| 68 | }  | 
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| 69 | }  | 
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| 70 | |||
| 71 |         if($clientAuthenticationMethodUsed) { | 
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| 72 |             if(!$client = $clientAuthenticationMethod->authenticate($request, $requestData)) { | 
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| 73 |                 throw new OAuthException('invalid_client', | 
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| 74 | 'Client authentication failed. Unknown client.',  | 
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| 75 | 'https://tools.ietf.org/html/rfc6749#section-3.2.1');  | 
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| 76 | }  | 
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| 77 |         } else { | 
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| 78 |             if (empty($requestData['client_id'])) { | 
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| 79 |                 throw new OAuthException('invalid_request', 'The request is missing the required parameter client_id.', | 
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| 80 | 'https://tools.ietf.org/html/rfc6749#section-4.1');  | 
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| 81 | }  | 
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| 82 | |||
| 83 |             if (!$client = $this->clientStorage->get($requestData['client_id'])) { | 
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| 84 |                 throw new OAuthException('invalid_request', 'The request includes the invalid parameter client_id.', | 
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| 85 | 'https://tools.ietf.org/html/rfc6749#section-4.1');  | 
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| 86 | }  | 
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| 87 | |||
| 88 |             if($client->hasCredentials()) { | 
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| 89 |                 if (!$authenticated) { | 
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| 90 |                     throw new OAuthException('invalid_client', 'Client authentication failed. No client authentication included', | 
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| 91 | 'https://tools.ietf.org/html/rfc6749#section-3.2.1');  | 
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| 92 | }  | 
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| 93 | }  | 
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| 94 | |||
| 95 | $clientAuthenticationMethodUsedIdentifier = 'none';  | 
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| 96 | }  | 
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| 97 | |||
| 98 | $tokenEndpointAuthMethod = $client->getMetadata()->getTokenEndpointAuthMethod() ?: 'client_secret_basic';  | 
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| 99 |         if($tokenEndpointAuthMethod !== $clientAuthenticationMethodUsedIdentifier) { | 
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| 100 |             throw new OAuthException('invalid_client', | 
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| 101 | 'Client authentication failed. Unsupported authentication method.',  | 
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| 102 | 'https://tools.ietf.org/html/rfc6749#section-3.2.1');  | 
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| 103 | |||
| 104 | }  | 
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| 105 | |||
| 106 | return $client;  | 
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| 107 | }  | 
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| 108 | }  |